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Title 超高強度繊維補強コンクリートにおける繊維の配向と曲げ 特性
Title 超高強度繊維補強コンクリートにおける繊維の配向と曲げ 特性( 本文(Fulltext) ) Author(s) 周, 波 Report No.(Doctoral Degree) 博士(工学) 甲第466号 Issue Date 2015-03-25 Type 博士論文 Version ETD URL http://repository.lib.gifu-u.ac.jp/handle/123456789/51024 ※この資料の著作権は、各資料の著者・学協会・出版社等に帰属します。 ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ࠾ࡅࡿ ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶ Evaluation of fiber orientation in ultra high strength fiber reinforced concrete and its effect on flexural properties ᖹᡂ 27 ᖺ 3 ᭶ ᒱ㜧ᏛᏛ㝔 ᕤᏛ◊✲⛉༤ኈᚋᮇㄢ⛬ ⏕⏘㛤Ⓨࢩࢫࢸ࣒ᕤᏛᑓᨷ ࿘ Ἴ ┠ḟ ➨ 1 ❶ ᗎㄽ ................................................................................................................................................ 1 1.1 ◊✲ࡢ⫼ᬒ ....................................................................................................................................... 1 1.1.1 ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ ............................................................................................ 1 1.1.2 UFC ࡢ⧄⥔ࡢ㓄ྥ .................................................................................................................... 1 1.2 ◊✲ࡢ┠ⓗ ....................................................................................................................................... 3 1.3 ㄽᩥࡢᵓᡂ ....................................................................................................................................... 3 ➨ 1 ❶ࡢཧ⪃ᩥ⊩ .................................................................................................................................. 4 ➨ 2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲ ........................................................................................................... 5 2.1 ࡣࡌࡵ ........................................................................................................................................... 5 2.2 UFC ࡢṔྐ ....................................................................................................................................... 5 2.3 UFC ࡢ୍⯡≀ᛶ ............................................................................................................................... 7 2.3.1 ᅽ⦰ᙉᗘ .................................................................................................................................... 7 2.3.2 ᘬᙇᙉᗘ࠾ࡼࡧᘬᙇ㌾≉ᛶ ................................................................................................ 8 2.3.3 ᅽ⦰ᛂຊ̺ࡦࡎࡳ᭤⥺ ............................................................................................................ 8 2.3.4 ⦰≉ᛶ .................................................................................................................................... 9 ➨ 2 ❶ࡢཧ⪃ᩥ⊩ ................................................................................................................................ 10 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ .................................................................................. 11 3.1 ࡣࡌࡵ ......................................................................................................................................... 11 3.2 ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢほᐹᡭἲ ............................................................................................. 11 3.3 ⧄⥔ࡢ㓄ྥࡀຊᏛ≉ᛶཬࡰࡍᙳ㡪 ......................................................................................... 14 ➨ 3 ❶ཧ⪃ᩥ⊩ .................................................................................................................................... 19 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ............................................................ 21 4.1 ࡣࡌࡵ ......................................................................................................................................... 21 4.2 ᐇ㦂ᴫせ ......................................................................................................................................... 21 4.2.1 PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ ............................................................................................. 21 4.2.2 ᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪 ........................................................... 23 4.3 ᐇ㦂⤖ᯝ ......................................................................................................................................... 26 4.3.1 PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ ............................................................................................. 26 4.3.2 ᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪 ........................................................... 27 4.4 ࡲࡵ ............................................................................................................................................. 32 ➨ 4 ❶ࡢཧ⪃ᩥ⊩ ................................................................................................................................ 33 ➨ 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ.............................................................................................. 34 5.1 ࡣࡌࡵ ......................................................................................................................................... 34 5.2 ᐇ㦂ᴫせ ......................................................................................................................................... 34 5.2.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ⧄⥔ࡢ㓄ྥࡢほᐹ ....................................................... 34 5.2.2 㗰⧄⥔ UFC ౪ヨయࡢษ᩿㠃ࡢほᐹ..................................................................................... 35 5.2.3 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿྜᡂ⧄⥔ UFC ࡢ᭤ࡆᣲື ................................................................. 35 I 5.3 ᐇ㦂⤖ᯝ ......................................................................................................................................... 36 5.3.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ⧄⥔ࡢ㓄ྥࡢほᐹ ....................................................... 36 5.3.2 㗰⧄⥔ UFC ౪ヨయࡢษ᩿㠃ࡢほᐹ..................................................................................... 39 5.3.3 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿྜᡂ⧄⥔ UFC ࡢ᭤ࡆᣲື ................................................................. 42 5.4 ࡲࡵ ............................................................................................................................................. 43 ➨ 5 ❶ࡢཧ⪃ᩥ⊩ ................................................................................................................................ 44 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ............................................. 45 6.1㸬ࡣࡌࡵ ....................................................................................................................................... 45 6.2. ᐇ㦂ᴫせ ........................................................................................................................................ 45 6.2.1 ⏝ᮦᩱ࠾ࡼࡧ UFC ࡢ㓄ྜ ................................................................................................ 45 6.2.2 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ .................................................................................................. 45 6.2.3 ౪ヨయ ...................................................................................................................................... 47 6.2.4 ⏬ീゎᯒࡼࡾ⧄⥔ࡢ㓄ྥ .................................................................................................. 47 6.3. ᐇ㦂⤖ᯝ ........................................................................................................................................ 49 6.3.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥ ........................................................ 49 6.3.2 UFC ୰ࡢ⧄⥔ࡢ㓄ྥ .............................................................................................................. 57 6.4. ࡲࡵ ............................................................................................................................................ 67 ➨ 6 ❶ࡢཧ⪃ᩥ⊩ ................................................................................................................................ 68 ➨ 7 ❶ ᶆ‽᭤ࡆヨ㦂య࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ............... 70 7.1. ࡣࡌࡵ ........................................................................................................................................ 70 7.2. ᐇ㦂ᴫせ ........................................................................................................................................ 70 7.2.1 ⏝ᮦᩱ࠾ࡼࡧ㓄ྜ .............................................................................................................. 70 7.2.2 ⦎ࡾΰࡐ࠾ࡼࡧ㣴⏕᪉ἲ ...................................................................................................... 70 7.2.3 ౪ヨయࡢస〇᪉ἲ .................................................................................................................. 70 7.2.4 ຊᏛ≉ᛶࡢヨ㦂᪉ἲ .............................................................................................................. 71 7.2.5 ᩿㠃㧗ࡉࡈࡢᘬᙇ㌾᭤⥺ .............................................................................................. 72 7.2.6 ⏬ീゎᯒࡼࡿ◚᩿㠃ࡢ⧄⥔㓄ྥࡢホ౯ .......................................................................... 72 7.2.7 DIANA ゎᯒࢯࣇࢺࡼࡿ J ✚ศࡢ⤖ᯝ᳨ド ...................................................................... 73 7.3. ᐇ㦂⤖ᯝ ........................................................................................................................................ 75 7.3.1 ࣇࣞࢵࢩࣗᛶ≧࠾ࡼࡧᅽ⦰ᙉᗘ .......................................................................................... 75 7.3.2 ᭤ࡆヨ㦂⤖ᯝ .......................................................................................................................... 75 7.3.3 ◚᩿㠃ࡢ⏬ീゎᯒ⤖ᯝ .......................................................................................................... 77 7.3.4 ᭱ᘬᙇᛂຊ᭷ຠ⧄⥔ᮏᩘ Neff ࡢ㛵ಀ ........................................................................... 79 7.3.5 DIANA ゎᯒ⤖ᯝ ..................................................................................................................... 80 7.4. ࡲࡵ ............................................................................................................................................ 81 ➨ 7 ❶ࡢཧ⪃ᩥ⊩ ................................................................................................................................ 82 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ....................... 83 8.1 ࡣࡌࡵ ......................................................................................................................................... 83 8.2. ᐇ㦂ᴫせ ........................................................................................................................................ 83 8.2.1 ⏝ᮦᩱ࠾ࡼࡧ㓄ྜ .............................................................................................................. 83 II 8.2.2 ⦎ΰࡐ࠾ࡼࡧ㣴⏕᪉ἲ .......................................................................................................... 83 8.2.3 ᙧࣃࢿࣝ .............................................................................................................................. 83 8.2.4 㛗᪉ᙧࣃࢿࣝ .......................................................................................................................... 84 8.2.5 ᭤ࡆヨ㦂᪉ἲ .......................................................................................................................... 85 8.2.6 ◚᩿㠃ࡢ⏬ീゎᯒࡼࡿ⧄⥔㓄ྥࡢホ౯ .......................................................................... 85 8.3. ᐇ㦂⤖ᯝ ........................................................................................................................................ 86 8.3.1 ᙧࣃࢿࣝࡽษฟࡋࡓ౪ヨయࡢ᭤ࡆᙉᗘ....................................................................... 86 8.3.2 㛗᪉ᙧࣃࢿࣝࡽษฟࡋࡓ౪ヨయࡢ᭤ࡆᙉᗘ................................................................... 88 8.3.3 ౪ヨయ◚᩿㠃ࡢほᐹ⤖ᯝ ...................................................................................................... 91 8.3.4 ◚᩿㠃ࡢ⏬ീゎᯒ⤖ᯝ .......................................................................................................... 92 8.4 ࡲࡵ ............................................................................................................................................. 93 ➨ 8 ❶ࡢཧ⪃ᩥ⊩ ................................................................................................................................ 94 ➨ 9 ❶ ⤖ㄽ .............................................................................................................................................. 95 9.1 ࡣࡌࡵ ......................................................................................................................................... 95 9.2 ྜᡂ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ࠾ࡼࡧ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ........................................................ 95 9.3 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ................................................ 95 9.4 UFC ࡢຊᏛ≉ᛶ⧄⥔ࡢ㓄ྥࡢᐃ㔞ⓗ࡞㛵ಀ .......................................................................... 96 9.5 ᚋࡢᒎᮃ ..................................................................................................................................... 96 9.5.1 タィ࣭ᕤ࠾ࡅࡿ⧄⥔ࡢ㓄ྥࡢ⪃៖ .............................................................................. 96 9.5.2 ⧄⥔ࡢ㓄ྥࡢホ౯ᢏ⾡ .......................................................................................................... 96 9.5.3 ⧄⥔ࡢ㓄ྥࡢண .................................................................................................................. 97 9.5.4 ⧄⥔ࡢ㓄ྥຊᏛ≉ᛶ .......................................................................................................... 97 9.5.6 ⧄⥔ࡢ㓄ྥࡢไᚚ .................................................................................................................. 97 9.6 ࡲࡵ ............................................................................................................................................. 97 ㅰ㎡ ............................................................................................................................................................ 98 Ⓨ⾲ㄽᩥ .................................................................................................................................................... 99 III ➨ 1 ❶ ᗎㄽ ➨ 1 ❶ ᗎㄽ 1.1 ◊✲ࡢ⫼ᬒ 1.1.1 ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ㸦Ultra high strength fiber reinforced concrete㸪௨ୗ UFC ࡍࡿ㸧 ࡣ㸪పỈ⤖ྜᮦẚࡢࣔࣝࢱ࣐ࣝࢺࣜࢡࢫ㧗ᙉᗘࡢ▷⧄⥔ࢆΰධࡋࡓࡶࡢ࡛㸪పỈ⤖ྜẚ࡛࠶ࡾ ࡞ࡀࡽඃࢀࡓὶືᛶࢆᣢࡕ㸪ᅽ⦰ᙉᗘࡣ 200N/mm2 ⛬ᗘ࡛㏻ᖖࡢࢥࣥࢡ࣮ࣜࢺࡢ⣙ 5㹼10 ಸ㸪᭤ ࡆᙉᗘࡣ 30N/mm2 ⛬ᗘ࡛㏻ᖖࡢࢥࣥࢡ࣮ࣜࢺࡢ⣙ 10㹼15 ಸࡢ㉸㧗ᙉᗘࡀᚓࡽࢀࡿࡢࡀ≉ᚩ࡛ ࠶ࡿࠋࡲࡓ㸪ࡦࡧࢀᑐࡋ࡚ࡶ⧄⥔ࡀᘬᙇᢠࡍࡿࡓࡵ㸪⬤ᛶⓗࡣ◚ቯࡏࡎ㸪㠌ᛶᐩࢇ ࡔ◚ቯᛶ≧ࢆ♧ࡍࠋ⌧⾜ࡢᅵᮌᏛࡢ UFC 㛵ࡍࡿタィ࣭ᕤᣦ㔪࡛ࡣ㸪ᅽ⦰ᙉᗘࡢ≉ᛶ್ࡀ 150N/mm2 ௨ୖ㸪ࡦࡧࢀⓎ⏕ᙉᗘࡢ≉ᛶ್ࡀ 4N/mm2 ௨ୖ㸪ᘬᙇᙉᗘࡢ≉ᛶ್ࡀ 5N/mm2 ௨ୖ ࡢࡶࡢࡀᑐ㇟ࡉࢀ࡚࠸ࡿ㹙㹛 ࠋ⌧ᅾ᪥ᮏᅜෆ࡛ᐇ⏝ࡉࢀ࡚࠸ࡿ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜ ࢺࡋ࡚ࢲࢡࢱࣝ㸪ࢧࢡࢭ࣒࠾ࡼࡧࢫ࣒ࣜࢡ࣮ࣜࢺࡀ࠶ࡿ㹙㹛>@ࠋ 1.1.2 UFC ࡢ⧄⥔ࡢ㓄ྥ ▷⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡀⓏሙࡋ࡚௨᮶᪥⮳ࡿࡲ࡛㸪࣐ࢺࣜࢡࢫ୰ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ࡑࢀࡀຊᏛᣲືཬࡰࡍᙳ㡪㛵ࡋ࡚ࡣ㸪㔜せ࡞ㄢ㢟ㄆ㆑ࡉࢀ࡚࠸ࡿࡶࡢࡢ㸪࠸ࡲࡔゎỴࡉ ࢀ࡚࠸࡞࠸ࠋࡑࡢ᭱ࡢ⌮⏤ࡣ㸪ࢥࣥࢡ࣮ࣜࢺ࠶ࡿ࠸ࡣࣔࣝࢱ࣐ࣝࢺࣜࢡࢫ୰ࡢ⧄⥔ࡢ㓄ྥࢆほ ᐹࡍࡿࡇ⮬యࡀ㞴ࡋ࠸࠺࠼㸪ࡉࡽ⌧≧࡛ࡣᡴ㎸ࡳ⧄⥔ࡢ㓄ྥࢆไᚚࡍࡿᢏ⾡ࡀᏑᅾࡋ ࡞࠸ࡓࡵ࡛࠶ࡿ⪃࠼ࡽࢀࡿࠋ ᚑ᮶ࡽ㸪㒊ᮦཌࡀⷧ࠸ሙྜࡣ⧄⥔ࡀ 2 ḟඖ㓄ྥ࡞ࡾ᫆࠸ࡇࡸ㸪ࡏࡁᯈຠᯝ㸦ᆺᯟ᥋ ࡍࡿ㠃࡛ࡣ㸪⧄⥔ࡣᆺᯟ㠃ᑐࡋ࡚ᖹ⾜㓄ྥࡋ᫆࠸㸧ࡀᏑᅾࡍࡿࡇࡣࡼࡃ▱ࡽࢀ࡚࠸ࡿࠋࡋ ࡋ㸪ᚑ᮶ࡢ᭷ࢫࣛࣥࣉࡢ▷⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢሙྜ㸪ᡴ㎸ࡳᮦᩱศ㞳ࡀ࡞ࡅࢀࡤ㸪ᇶ ᮏⓗᵓ㐀≀ෆ࡛ࡶࣛࣥࢲ࣒࡞㓄ྥ࡞ࡿࠋࡇࢁࡀ㸪UFC ࡸᡴ㎸ࡳᆺࡢࡦࡎࡳ◳ᆺࢭ࣓ࣥ ࢺ」ྜᮦᩱ㸦Strain hardening cementitious composites㸧࡛ࡣ㧗ὶືࡍࡿࡢࡀ୍⯡ⓗ࡛࠶ࡾ㸪ᡴ㎸ ࡳࢥࣥࢡ࣮ࣜࢺࢆᆺᯟෆ࡛ὶືࡉࡏࡿࡓࡵ㸪ࡑࡢὶࢀᛂࡌ࡚⧄⥔ࡀ㓄ྥࡍࡿࡇ࡞ࡿࠋ ࡇࢀࡲ࡛౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࡀヨ㦂⤖ᯝᙳ㡪ࡍࡿࡇ㛵ࡋ࡚ࡣ㸪ከࡃࡢሗ࿌ࡀ࠶ࡾ ᐇࡋ࡚ㄆࡵࡽࢀ࡚࠸ࡿ>@ࠋ୍ࡋ࡚ S.T Kang ࡽ>@ࡣᅗ ♧ࡍࡼ࠺㸪UFC ࢆ 13201320100 mm ࡢࣃࢿࣝࡢ୰ᚰࡽὶࡋ㎸ࡳ㸪◳ᚋ 100100400 mm ࡢ᭤ࡆ౪ヨయ ࢆษฟࡋ㸪ษḞࡁᱱࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜ࡗࡓࠋヨ㦂ࡢ⤖ᯝ㸪ᅗ ♧ࡍࡼ࠺㸪ࣃࢿࣝࡢ୰ ᚰࡽ㞳ࢀࡿ㸪᭤ࡆᙉᗘࡀᚎࠎ㧗ࡃ࡞ࡾ㸪ࣃࢿࣝࡢ୰ᚰ㒊᭱እ⦕࡛ࡣ㸪᭤ࡆᙉᗘ 1㸸 2 ⛬ᗘࡢࡁ࡞ᕪࡀ⏕ࡌ࡚࠸ࡿࠋヨ㦂ᚋࡢ౪ヨయࡢ◚᩿㠃ࢆほᐹࡋࡓ⤖ᯝ㸪ᅗ ♧ࡍࡼ࠺ 㸪ᅗ୰ࡢⓑ࠸Ⅼࡀ㗰⧄⥔ࡢษ᩿㠃࡛࠶ࡾ㸪ᙉᗘࡢ㧗࠸౪ヨయࡣ㸪ⓑ࠸Ⅼࡢ㠃✚ࡀᑠࡉ࠸㸪ࡍ࡞ ࢃࡕ⧄⥔ࡣ⧄⥔㍈ᑐࡋ࡚ᆶ┤ษ᩿ࡉࢀ࡚࠸ࡿࡢᑐࡋ࡚㸪ᙉᗘࡢప࠸౪ヨయ࡛ࡣ⧄⥔ࡀᑡ ࡞ࡃ㸪⧄⥔ࡢษ᩿㠃ࡀࡁࡃ࡞ࡗ࡚࠾ࡾ㸪ษ᩿㠃ᑐࡋ࡚⧄⥔ࡀᩳࡵ㓄ྥࡋ࡚࠸ࡿ≧ἣࢆ♧ࡋ ࡚࠸ࡿࠋ ࡇࡢࡼ࠺࡞ᵓ㐀≀୰ࡢ⧄⥔ࡢ㓄ྥࡢᙳ㡪ࢆ⪃៖ࡍࡿࡓࡵ㸪 ࣇࣛࣥࢫࡢ UFC ࡢᣦ㔪࡛࠶ࡿ SetraAFGC>@࡛ࡣ㓄ྥಀᩘ K ࢆᑟධࡋ㸪๓ᐇ㦂࡛☜ㄆࢆ⾜ࢃ࡞࠸ሙྜࡣ㸪㏻ᖖࡢⲴ㔜ᑐࡍ 1 ➨ 1 ❶ ᗎㄽ ࡿ↷ᰝ࡛ࡣ K=1.25㸪ᒁᡤⲴ㔜ᑐࡍࡿ↷ᰝ࡛ࡣ K=1.75 ࡋ࡚㸪ᘬᙇᙉᗘࢆ㓄ྥಀᩘ K ࡛㝖ࡍ ࡿࡇ࡛タィ⏝್ࡋ࡚࠸ࡿࠋ୍᪉㸪ᅵᮌᏛࡢ UFC ᣦ㔪>@࡛ࡣᮦᩱಀᩘ γc㸻1.3 ࡍࡿࡇ ࡛⧄⥔ࡢ㓄ྥࡘ࠸࡚┤᥋ⓗࡣ⪃៖ࡋ࡚࠸࡞࠸ࠋ ᵓ㐀≀୰ࡢ⧄⥔ࡢ㓄ྥࡣᡴ㎸ࡳ᪉ἲࡸᵓ㐀≀ࡢᑍἲ࡞ࡼࡗ࡚ኚࡍࡿࡇࡶ▱ࡽࢀ࡚࠸ ࡿࠋࡋࡋ࡞ࡀࡽ㸪ࡇࢀࢆタィ࠾࠸࡚ྜ⌮ⓗ⪃៖ࡍࡿࡓࡵࡣ㸪ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ㓄 ྥࢆホ౯ࡍࡿࡶ㓄ྥࢆไᚚࡍࡿᢏ⾡ࡀᚲせ࡛࠶ࡿࡀ㸪⌧≧࡛ࡣࡇࢀࡽࡢᢏ⾡ࡣࡲࡔ☜❧ ࡉࢀ࡚࠸࡞࠸ࠋ 1320 100㻌 1320㻌 (mm) (b) ౪ヨయࡢษฟࡋ (a) ᡴ㎸ࡳ ᅗ ࣃࢿࣝヨ㦂యࡢᡴ㎸ࡳ࠾ࡼࡧ౪ヨయࡢษฟࡋ>@ ᅗ ษฟࡋࡓ౪ヨయࡢⲴ㔜㛤ཱྀኚ᭤⥺>@ (a) 2-8 (b) 2-10 ᅗ ษฟࡋࡓ౪ヨయࡢ◚᩿㠃>@ 2 (c) 2-12 ➨ 1 ❶ ᗎㄽ 1.2 ◊✲ࡢ┠ⓗ ᮏ◊✲࡛ࡣ㸪UFC ࢆ⢓ᛶࢆ᭷ࡍࡿ↓Ⰽ㏱᫂࡞㧗྾Ỉᛶ㧗ศᏊᮦᩱ࡛ࣔࢹࣝࡋ㸪⧄⥔ࢆྍど ࡍࡿࡇ࡛㸪౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡍࡿࡇࢆ┠ⓗࡋࡓࠋࡉࡽ㸪⧄⥔ࡢ㓄ྥࡀ UFC ࡢຊᏛ≉ᛶཬࡰࡍᙳ㡪ࡶ᳨ウࡋࡓࠋ 1.3 ㄽᩥࡢᵓᡂ ㄽᩥࡣ㸪 9 ❶ࡽᵓᡂࡉࢀ࡚࠾ࡾ㸪ྛ❶ࡢᴫせࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ ➨ 1 ❶ࠕᗎㄽ࡛ࠖࡣ㸪UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿㄢ㢟ືྥࡘ࠸࡚㏙㸪ᮏ◊✲ࡢ┠ⓗࢆ ♧ࡍࡶᮏㄽᩥࡢᵓᡂࢆ♧ࡋࡓࠋ ➨ 2 ❶ࠕUFC 㛵ࡍࡿ᪤ ࡢ◊✲࡛ࠖࡣ㸪UFC ࡢⓎᒎࡢ⤒⦋ࢆ⡆༢ㄝ᫂ࡍࡿࡶ UFC ࡢ୍⯡≀ᛶ㛵ࡍࡿ᪤ ࡢ◊✲ࢆ⤂ࡋࡓࠋ ➨ 3 ❶ࠕUFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲࡛ࠖࡣ㸪⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ᡂᯝ ࢆ୰ᚰ㏙ࡓࠋ ➨ 4 ❶ࠕPVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪࡛ࠖࡣ㸪PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ ≉ᛶ࠾ࡼࡧࢥࣥࢡ࣮ࣜࢺࡢᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪ࡘ࠸࡚㏙ࡓࠋ ➨ 5 ❶ࠕUFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ࡛ࠖࡣ㸪⧄⥔ࡢ㓄ྥࡢ᪂ࡓ࡞ホ౯ᡭἲࡋ࡚ྍど ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆᥦࡋ㸪ᶆ‽᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓࠋ ➨ 6 ❶ࠕྍどࣔࢹࣝࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯࡛ࠖࡣ㸪ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ ⏝࠸㸪ヨ㦂యࡢᙧ≧ᑍἲ࣭ᡴ㎸ࡳ᪉ἲ࡞ࡀ⧄⥔ࡢ㓄ྥ࠼ࡿᙳ㡪ࢆ᳨ウࡋࡓࠋࡲࡓ㸪ᐇ㝿 UFC ヨ㦂యࡶసᡂࡋ㸪ヨ㦂యࡢษ᩿㠃ࡢ⏬ീゎᯒࢆ⾜࠸㸪ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ ⧄⥔ࡢ㓄ྥࡢホ౯ࡢ㐺⏝ᛶࢆ☜ㄆࡋࡓࠋ ➨ 7 ❶ࠕᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ࡛ࠖࡣ㸪 ⧄⥔ࡢศᩓ࣭㓄ྥࢥࣥࢡ࣮ࣜࢺࡢᘬᙇᙉᗘࡢ㛵ಀࢆᐃ㔞ⓗホ౯ࡍࡿࡇࢆ┠ⓗࡋ㸪ᶆ‽᭤ ࡆ౪ヨయࢆᑐ㇟ࡋ㸪ษḞࡁ῝ࡉࡀ␗࡞ࡿ UFC ࡢ᭤ࡆ౪ヨయࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪J ✚ศἲ ࡼࡾ᩿㠃㧗ࡉࡈࡢᘬᙇ㌾᭤⥺ࢆ᥎ᐃࡋࡓࠋࡲࡓ㸪ࢹࢪࢱ࣐ࣝࢡࣟࢫࢥ࣮ࣉ࡛ᙳࡋࡓษ ᩿㠃ࡢ┿ࡢ⏬ീゎᯒࡼࡾ⧄⥔ᮏᩘ࠾ࡼࡧ㓄ྥゅᗘࢆィ⟬ࡋ㸪ᘬᙇ㌾᭤⥺ࡢ㛵ಀࢆ᳨ウ ࡋࡓࠋ ➨ 8 ❶ࠕࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ࡛ࠖࡣ㸪 φ1200×50mm ᙧࣃࢿࣝࡢ୰ᚰ UFC ࢆᡴ㎸ࡳ㸪◳ᚋࣃࢿࣝࡢ༙ᚄ᪉ྥᑐࡋ࡚ 0°㸪30°㸪 60°࠾ࡼࡧ 90°ࡢ᪉ྥ᭤ࡆ౪ヨయࢆษ᩿ࡋ㸪 ⧄⥔ࡢ㓄ྥᛶࢆ᭷ࡍࡿ౪ヨయࡢ㍕Ⲵヨ㦂ࢆ⾜ࡗࡓࠋ ࡲࡓࠊヨ㦂ᚋࠊ౪ヨయ◚᩿㠃ࡢ┤㏆࡛ษ᩿ࡋࠊษ᩿㠃ࡢ⏬ീゎᯒࡼࡾ⧄⥔ᮏᩘ㓄ྥゅᗘࢆ ィ⟬ࡋ㸪⧄⥔ࡢ㓄ྥࡀ UFC ࡢ᭤ࡆᙉᗘࡢ⛬ᗘᙳ㡪ࡍࡿࢆ᳨ウࡋࡓࠋ ➨ 9 ❶ࠕ⤖ㄽ࡛ࠖࡣ㸪ᮏ◊✲ࡢᡂᯝࢆࡲࡵࡿࡶ㸪UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿᚋࡢ ㄢ㢟ࡘ࠸࡚㏙ࡓࠋ 3 ➨ 1 ❶ ᗎㄽ ➨ 1 ❶ࡢཧ⪃ᩥ⊩ [1] ᅵᮌᏛ㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢタィ࣭ᕤ᪉㔪㸦㸧㸪2004 [2] ㈈ᅋἲேᅵᮌ◊✲ࢭࣥࢱ࣮㸸ᘓタᢏ⾡ᑂᰝド᫂ሗ࿌᭩ࠕࢲࢡࢱࣝࣇ࢛࣮࣒ࠖ 㸪2002.3 [3] http://www.obayashi.co.jp/service_and_technology/related/tech080 [4] S.H Kwon, S.T Kang, B.Y Lee, J.K Kim: The variation of flow-dependent tensile behavior in radial flow dominant placing of Ultra High Performance Fiber Reinforced Cementitious Composites (UHPFRCC). 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Sato, D. Yamazaki and W. Pansuk: Influence of Fiber Orientation on Tensile Behavior of High Performance Fiber Reinforced Mortar, Proceedings of the Japan Concrete Institute, Vol.32, No.1, pp.245-250, 2010 [11] Setra/AFGG㸸Ultra high Performance Fiber-Reinforced Concrete, Interim Recommendation, 2002 4 ➨ 2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲ ➨ 2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲ 2.1 ࡣࡌࡵ ࢥࣥࢡ࣮ࣜࢺࡢ㧗ᙉᗘ㸪㧗⪏ஂᛶࡣࠊᖖࢥࣥࢡ࣮ࣜࢺᢏ⾡⪅ࡢክ┠ᶆ࡛࠶ࡾࠊࢭ࣓ࣥࢺ ࢥࣥࢡ࣮ࣜࢺࡢṔྐ࠾࠸࡚ࠊࡑࢀࡒࢀࡢ௦ࡢᢏ⾡⪅ࠊ◊✲⪅ࡀດຊࢆ㔜ࡡ࡚ࡁࡓࠋᮏ❶࡛ࡣࠊ UFC ࡢⓎᒎࡢ⤒⦋ࢆ⡆༢ㄝ᫂ࡍࡿࡶ UFC ࡢ୍⯡≀ᛶ㛵ࡍࡿ᪤ ࡢ◊✲ࢆ⤂ࡍࡿࠋ 2.2 UFC ࡢṔྐ UFC ࡢᇶ♏࡞ࡗࡓࡢࡣࠊ1977 ᖺ Denmark ࠾࠸࡚㉸ᚤ⢏Ꮚ㧗ᛶ⬟ῶỈࢆ⤌ࡳྜࢃࡏ ࡿ ࡇ ࡼࡾ 㛤Ⓨ ࡉࢀࡓ DSP 㸦 Densified Systems containing homogeneously arranged ultrafine Particles㸧ᮦᩱ⪃࠼ࡽࢀ࡚࠸ࡿ>@ࠋᅗ DSP ࣮࣌ࢫࢺࡢᶍᘧᅗࢆ♧ࡍ>@ࠋDSP ࡣ㧗ᛶ ⬟ῶỈࡼࡿ⢏Ꮚศᩓຠᯝ࠾ࡼࡧ㉸ᚤ⢏Ꮚࡼࡿሸຠᯝࡢ᪉ࢆ⏝ࡋࡓᡭἲ࡛࠶ࡾࠊᴟ ࡵ࡚పỈ⤖ྜᮦẚ࡛࠶ࡗ࡚ࡶඃࢀࡓὶືᛶࢆᣢࡘ㧗ᙉᗘࢥࣥࢡ࣮ࣜࢺࢆ〇㐀ࡍࡿᢏ⾡࡛࠶ࡿࠋ ᅗ '63 ࡢᶵᵓ>@ ࡑࡢᚋࠊ1990 ᖺ௦๓༙ࣇࣛࣥࢫࡢ P Richard M Cheyrezy>@ࡼࡾ RPC㸦Reactive Powder Concrete㸧ࡢᴫᛕࡀᥦࡉࢀࠊࡉࡽୡ⏺ึࡢ RPC ࡀࣇࣛࣥࢫࡢ Bouygues ♫ࡢᐇ㦂ᐊ࡛ㄌ⏕ࡋ ࡓ>@ࠋRPC ࡣ᭱ᐦሸ⌮ㄽᇶ࡙࠸࡚㛤Ⓨࡉࢀࡓࢭ࣓ࣥࢺ⣔࣐ࢺࣜࢵࢡࢫ㔠ᒓ⧄⥔ࢆΰධࡋ ࡓ㉸㧗ᙉᗘ+㧗㠎ᛶࢥࣥࢡ࣮ࣜࢺ࡛࠶ࡿࠋ⾲>@ RPC ࡢ⏝ᮦᩱ࠾ࡼࡧ㓄ྜࢆ♧ࡍࠋᅗ >@ RPC200 RPC800 ࡢ┦ᑐᐦᗘᅽ⦰ᙉᗘࡢ㛵ಀࢆ♧ࡍࠋ 5 ➨ 2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲ ⾲ 53& ⏝ᮦᩱ࠾ࡼࡧ㓄ྜẚ>@ ᅗ㻙㻞㻚㻞 㻾㻼㻯㻞㻜㻜 㻾㻼㻯㻤㻜㻜 ࡢᅽ⦰ᙉᗘ㼇㻞㼉㻌 ࡑࡋ࡚ࠊUFC ࡀ 1998 ᖺ᪥ᮏᢏ⾡ᑟධࡉࢀࠊ2004 ᖺᅵᮌᏛࡽࠕ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥ ࣥࢡ࣮ࣜࢺࡢタィ࣭ᕤᣦ㔪㸦㸧ࠖ>@ࡀห⾜ࡉࢀࡓࠋ࡞࠾ࠊḢ⡿࡛ࡣ UHPFRC㸦Ultra-High Performance Fiber Reinforced Concrete㸧ࡤࢀ࡚࠸ࡿࡀ㸪ྠᵝ࡞ࡶࡢ⪃࠼࡚ࡼ࠸ࠋ 6 ➨ 2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲ 2.3 UFC ࡢ୍⯡≀ᛶ 2.3.1 ᅽ⦰ᙉᗘ UFC ࡣ㸪㏻ᖖ⇕㣴⏕ࡼࡾᙉᗘⓎぢࡀࡁࡃಁ㐍ࡉࢀ࡚࠸ࡿࡢ࡛ࠊ㣴⏕⤊ᚋࡢᙉᗘࡣᏳᐃ ࡋ࡚࠾ࡾࠊᮦ㱋ࡢ㐪࠸ࡀᙉᗘ࠼ࡿᙳ㡪ࡣᑠࡉ࠸>@ࠋᅗ ࡣ⇕㣴⏕ࡢ୍ࢆ♧ࡍࠋᅗ ࡣ㣴⏕⤊ᚋ࠾ࡅࡿ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ㛗ᮇᮦ㱋࡛ࡢᙉᗘヨ㦂⤖ᯝࢆ♧ࡍࠋᮦ 㱋ࡼࡽࡎᅽ⦰ᙉᗘࡢ್ࡣࡰ୍ᐃࡢ್࡛࠶ࡿࠋࡲࡓࠊ㏆ᖺᖖ ◳ᆺ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ ࣮ࣜࢺࡶ㛤Ⓨࡉࢀࠊ⇕㣴⏕ UFC ྠ⛬ᗘࡢᅽ⦰ᙉᗘ࡛ࠊ⌧ሙᡴࡕࡶྍ⬟࡞ࡾࠊ᭦࡞ࡿ UFC ࡢ 㐺⏝ࡀᮇᚅ࡛ࡁࡿ>@ࠋ ᅗ ⇕㣴⏕ࡢ୍>@ ᅗ ⇕㣴⏕⤊ᚋ࠾ࡅࡿ 8)& ࡢ㛗ᮇᮦ㱋࡛ࡢᙉᗘヨ㦂⤖ᯝ>@ 7 ➨ 2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲ 2.3.2 ᘬᙇᙉᗘ࠾ࡼࡧᘬᙇ㌾≉ᛶ ᣦ㔪㸦㸧>@࡛ࡣ㸪UFC ࡣࠊࡦࡧࢀⓎ⏕ᙉᗘࡢ≉ᛶ್ࡀ 4N/mm2 ௨ୖ㸪ᘬᙇᙉᗘࡢ≉ᛶ್ ࡀ 5N/mm2 ௨ୖࡉࢀ࡚࠸ࡿࠋUFC ࡢᘬᙇᙉᗘ࠾ࡼࡧᘬᙇ㌾≉ᛶࡣ㸪ᮏ᮶┤᥋ᘬᙇヨ㦂ࡼࡾ ồࡵࡿࡢࡀᮃࡲࡋ࠸ࡀࠊࡑࢀ௨እࡶ᭤ࡆヨ㦂⤖ᯝࡢ㏫ゎᯒ>@ࡸ J ✚ศἲ>@࡞ࡀ࠶ࡿࠋ᭤ࡆ ヨ㦂᪉ἲࡘ࠸࡚ࡣࠊJIS A 1106ࠕࢥࣥࢡ࣮ࣜࢺࡢ᭤ࡆᙉᗘヨ㦂᪉ἲࠖࡶࡋࡃࡣࠊJSCE-G552ࠕ㗰 ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ᭤ࡆᙉᗘ࠾ࡼࡧࡲࡆࢱࣇࢿࢫヨ㦂᪉ἲࠖ࡞ࡀᣲࡆࡽࢀࡿࠋࡇࡢࠊ JCI-S-002-2003ࠕษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜̺ኚ᭤⥺ヨ㦂ἲࠖࡸ RILEM ࡀ᥎ዡࡍࡿヨ㦂ἲ>@࡞ࡀ࠶ࡿࠋ ᅗ ࡣ㗰⧄⥔࠾ࡼࡧ࣑ࣛࢻ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢᘬᙇ㌾᭤⥺ࡢࣔࢹࣝࢆ♧ࡍ>@ࠋUFC ᣦ㔪㸦㸧♧ࡍࡼ࠺ࠊࡦࡧࢀⓎ⏕ᚋࠊࡦࡧࢀᖜࡢቑຍక࠸ࡑࡇ࡛ఏ㐩ࡉࢀࡿᘬᙇᛂຊ ࡣῶᑡࡋ࡚࠸ࡁࠊ᭱⤊ⓗ㛤ཱྀࡋࡓࡦࡧࢀࢆᙧᡂࡍࡿࠋᘬᙇ㌾᭤⥺ࡣࠊࡇࡢఏ㐩ᛂຊ ࡦࡧࢀᖜࡢ㛵ಀࢆ⾲ࡋࡓࡶࡢ࡛࠶ࡿࠋ ᅗ 8)& ࡢᘬᙇ㌾᭤⥺>@ 2.3.3 ᅽ⦰ᛂຊ̺ࡦࡎࡳ᭤⥺ ᅗ ᰕ UFC ౪ヨయࡢᅽ⦰ヨ㦂ィ ࡉࢀࡓᅽ⦰ᛂຊ̺ࡦࡎࡳ᭤⥺ࡢ୍ࢆ♧ࡍࠋࣖ ࣥࢢಀᩘࡣ 42.4kN/mm2㸪ᅽ⦰ᙉᗘࡣ 167.0 N/mm2 ࠋ ᅗ 8)& ࡢᘬᙇᛂຊ̺ࡦࡎࡳ᭤⥺>@ 8 ➨ 2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲ 2.3.4 ⦰≉ᛶ UFC ࡢ⦰ࡣࠊ⮬ᕫ⦰ࡀ࡛࠶ࡾࠊᮦᩱࡢᛶ㉁ࡸ㣴⏕᮲௳࡞ࡢᵝࠎࡢせᅉࡼࡗ࡚ᙳ㡪 ࢆཷࡅࡿࠋᅗ ࡣ UFC ࡢ⦰ࡦࡎࡳࡢ୍ࢆ♧ࡍࠋᶆ‽⇕㣴⏕୰㸦୍ḟ㣴⏕ 20Υ㸪48H㸹 ḟ㣴⏕ 90r㸪48H㸧ࡢ⦰㔞ࡣ 45010-6 ⛬ᗘ࡛࠶ࡾࠊ㣴⏕⤊ᚋࡢ⦰㔞ࡣ 5010-6 ⛬ᗘ࡛࠶ ࡿࠋ୍᪉ࠊᶆ‽⇕㣴⏕ࢆ⾜ࢃ࡞࠸ሙྜࠊ⦰ࡦࡎࡳࡣ㏻ᖖࡢࢥࣥࢡ࣮ࣜࢺྠᵝࠊᮦ㱋ࡶ ኚࡋࠊ⦰㔞ࡣ 55010-6 ⛬ᗘ࡛࠶ࡿࠋ ᅗ 8)& ࠾ࡅࡿᡴ㎸ࡳࡽࡢ⦰ࡦࡎࡳ>@ 9 ➨ 2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲ ➨ 2 ❶ࡢཧ⪃ᩥ⊩ [1] H.H Bache: Densified Cement/Ultra-Fine Particle-Based materials. Second International Conference on Superplasticizers in Concrete, Canada, 1981 [2] P Richard, M Cheyrezy: Composition of Reactive Powder Concrete. Cement and Concrete Research, Vol.25, No.7, pp.1501-1511, 1995 [3] P.C Aitcin: Cements of yesterday and today Concrete of tomorrow. Cement and Concrete Research, Vol.30, No.9, pp.1349-1359, 1995 [4] ᅵᮌᏛ㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢタィ࣭ᕤ᪉㔪㸦㸧 㸪2004 [5] ⋢❳ᾈྖ㸪ྜྷ⏣ᾈ୍㑻㸪▼㛵୍㸪ᖹ⏣㝯⚈㸸ᖖ ◳ᆺ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ ㅖ≉ᛶ㸪ࢥࣥࢡ࣮ࣜࢺᖺḟㄽᩥ㞟㸪Vol.34㸪No.1㸪pp.208-213㸪2012 [6] JCI つ‽㸸ษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲ JCI-S-0022003 [7] V.C Li, R.J Ward: A Novel Testing Technique for Post-peak Tensile Behavior of Cementitious Material㸪Fracture Toughness and Fracture Energy, pp.183-195, Balkema, 1989 [8] Determination of the Fracture Energy of Mortar and Concrete by Means of Three-point Bend Tests on Notched Beams, Materials and Structures, Vol.18, No.4, pp.285-290, 1985 [9] N.K Thy㸪࿘Ἴ㸪᳃ៅஓ㸪ෆ⏣⿱ᕷ㸸࣑ࣛࢻ⧄⥔ࢆ⏝࠸ࡓ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜ ࢺࡢຊᏛ≉ᛶ㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.33㸪No.1㸪pp.233-238㸪2011 10 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ 3.1 ࡣࡌࡵ ࡇࢀࡲ࡛౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࡀヨ㦂⤖ᯝᙳ㡪ࡍࡿࡇ㛵ࡋ࡚ࡣ㸪ከࡃࡢሗ࿌ࡀ࠶ࡾ ᐇࡋ࡚ㄆࡵࡽࢀ࡚࠸ࡿࠋࡲࡓ㸪ᵓ㐀≀୰ࡢ⧄⥔ࡢ㓄ྥࡣ㸪ᡴ㎸ࡳ᪉ἲࡸᵓ㐀≀ࡢᑍἲࡼ ࡗ࡚ኚࡍࡿࡇࡶ▱ࡽࢀ࡚࠸ࡿࠋࡋࡋ࡞ࡀࡽ㸪ࡇࢀࢆタィ࠾࠸࡚ྜ⌮ⓗ⪃៖ࡍࡿࡓࡵ ࡣ㸪ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡍࡿࡶ㓄ྥࢆไᚚࡍࡿᢏ⾡ࡀᚲせ࡛࠶ࡿࡀ㸪 ⌧≧࡛ࡣࡇࢀࡽࡢᢏ⾡ࡣࡲࡔ☜❧ࡉࢀ࡚࠸࡞࠸ࠋࡉࡽ㸪ᵓ㐀≀యࡢᣲືᑐࡋ࡚ᒁᡤⓗ࡞ ⧄⥔ࡢ㓄ྥࡀࡢࡼ࠺࡞ᙳ㡪ࢆ࠼ࡿࡢࡶᚲࡎࡋࡶ᫂☜ࡣ࡞ࡗ࡚࠸࡞࠸ࠋ⧄⥔ࡢ㓄ྥࡢၥ 㢟ࡣᚋࡢ◊✲㛤Ⓨࡀᙉࡃᮃࡲࢀࡿㄢ㢟࡛࠶ࡿࠋ ᮏ❶࡛ࡣࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢほᐹᡭἲ㸪⧄⥔ࡢ㓄ྥᙳ㡪ࡍࡿせᅉ࠾ࡼࡧ⧄⥔ࡢ㓄ྥ ຊᏛ≉ᛶࡢ㛵ಀ㛵ࡍࡿ᪤ ࡢ◊✲ᡂᯝࢆᩚ⌮ࡋࡓࠋ 3.2 ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢほᐹᡭἲ ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ㓄ྥ≧ែࢆほᐹࡍࡿࡣ㸪౪ヨయࡢษ᩿㠃ࢆほᐹࡍࡿࡢࡀ⡆౽࡛࠶ ࡾ୍⯡ⓗ࡛࠶ࡿࠋࡲࡓࠊ⏬ീゎᯒᢏ⾡ࢆ⤌ࡳྜࢃࡏࡿࡇ࡛㓄ྥ≧ែࡢᩘ್ࡀ᳨ウࡉࢀ࡚࠸ࡿࠋ J.L Chermant>@㸪A Amin>@㸪S.T Kang>@ࡣ౪ヨయࡢษ᩿㠃ࢆ㧗⏬ീᩘࢹࢪࢱ࣓࡛ࣝ࢝ࣛᙳࡋ㸪 ImageJ>@࡞ࡢ⏬ീゎᯒᢏ⾡ࢆ⏝࠸㸪⧄⥔ࡢ㓄ྥ≧ែࢆ᳨ウࡋࡓࠋᅗ̺ ,PDJH- ࢆ⏝࠸ࡓ ษ᩿㠃ࡢ⏬ീゎᯒᡭ㡰ࢆ♧ࡍ>@ࠋᅗ̺Dࡣ౪ヨయษ᩿㠃ࢆࢹࢪࢱ࣓࡛ࣝ࢝ࣛᙳࡋࡓ⏬ീ ࡛࠶ࡿࠋᅗ୰㸪ⓑ࠸㠃✚ࡀ㗰⧄⥔ࡢษ᩿㠃࡛࠶ࡿࠋᅗ̺Eࡣษ᩿㠃ࡢ⏬ീࢆ 2 ್ࡋࡓࡶࡢ ࡛࠶ࡿࠋࡇࢀࡼࡾ㗰⧄⥔ࡢษ᩿㠃ࢆㄆ㆑ࡋࠊㄆ㆑ࡋࡓ㗰⧄⥔ࡢษ᩿㠃ࢆᴃ࡛㏆ఝࡍࡿࡇ࡛㸪 ⧄⥔ࡢ㓄ྥゅᗘࢆồࡿࠋ ᅗ̺ ♧ࡍࡼ࠺㸪⧄⥔ࡢ㓄ྥゅᗘ θ ࡣ㸪ᘧ̺ ࡼࡾィ⟬࡛ࡁࡿࠋ⧄⥔ࡀษ᩿㠃ᑐ ࡋ࡚ᆶ┤㓄ྥࡋ࡚࠸ࡿሙྜ 90r࡞ࡾ㸪⧄⥔ࡀษ᩿㠃ᑐࡋ࡚ᖹ⾜㓄ྥࡋ࡚࠸ࡿሙྜ 0r ࡞ࡿࠋ࡞࠾ࠊࡇࡢ᪉ἲࡀ㐺⏝࡛ࡁࡿࡢࡣ㸪㗰⧄⥔ࡢ᩿㠃ᙧ≧ࡀ┿࡛࠶ࡿࡇࡀ᮲௳࡛࠶ࡿࠋ P Stahli>@㸪ᑠࡽ>@ࡣX⥺CT-Scanࡼࡾ౪ヨయࢆษ᩿ࡏࡎ㸪⧄⥔ࡢ㓄ྥࢆ᳨ウࡋ࡚࠸ࡿࠋ ᩿ᒙ┿ࡢ୍ࢆᅗ̺♧ࡍࠋ㯮࠸⥺≧ࡢ㒊ศࡀ▷⧄⥔࡛࠶ࡿࠋ3ḟඖ⏬ീゎᯒࢯࣇࢺ࢙࢘ ࢆ⏝࠸㸪᩿ᒙ⏬ീࡽ⧄⥔1 ᮏ1 ᮏࢆ᳨ฟࡋ㸪3 ḟඖᗙᶆ್ࢆྲྀᚓࡍࡿࡇࡀྍ⬟࡛࠶ࡿࠋᅗ ̺ࡣ㸪ᚓࡽࢀࡓᗙᶆ್ࢆ⏝࠸࡚㸪⧄⥔ࢆᥥ⏬ࡋࡓ⤖ᯝࢆ♧ࡍࠋࡉࡽ㸪ᅗ̺♧ࡍࡼ ࠺⧄⥔ࡢ3ḟඖᗙᶆࡽࠊ≉ᐃࡢ᩿㠃ࢆ㊬ࡄ⧄⥔ࡢ㓄ྥゅᗘࡶ⟬ฟ࡛ࡁࡿࠋ Ʌ ൌ ିଵ ୧ ᘧ̺ ⧄⥔ࡢ㓄ྥゅᗘ>@ 11 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ (a) ษ᩿㠃ࡢ⏬ീࣔࣀࢡࣟ (b) ⏬ീ 2 ್ (d) ⧄⥔ษ᩿㠃ࡢᴃ㏆ఝ (c) ⧄⥔ษ᩿㠃ࡢㄆ㆑ ᅗ̺ ษ᩿㠃ࡢ⏬ീゎᯒᡭ㡰>@ ษ᩿㠃㻌 ⧄⥔㻌 θ dfi df ᅗ̺ ษ᩿㠃࠾ࡅࡿ⧄⥔ࡢ㓄ྥ>@ 12 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ ᅗ̺ &7 ᩿ᒙ┿>@ ⧄⥔ ᅗ̺ &7 ⏬ീࡽᢳฟࡉࢀࡓ⧄⥔㓄ྥ>@ ᢳ H1 㼂㻝㻌 ᅗ̺ 㓄ྥゅᗘࢆ⟬ฟࡋࡓ㠃>@ 13 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ 㗰⧄⥔ࡢሙྜࡣX⥺㏱㐣ἲࢆ⏝࠸ࡿ᪉ἲࡀྂࡃࡽ㐺⏝ࡉࢀ࡚࠾ࡾ㸪ࡇࡢሙྜࡣCT-Scan ྠᵝ౪ヨయࢆษ᩿ࡍࡿࡇ࡞ࡃෆ㒊ࢆ┤᥋ほᐹࡍࡿࡇࡀ࡛ࡁࡿࠋ㤿ሙࡽ>@ࡣX⥺㏱㐣ᙳ ࡼࡿ⏬ീࡽࢥࣥࢡ࣮ࣜࢺ୰ࡢ㗰⧄⥔ࡢ㓄ྥ≧ែࢆホ౯ࡍࡿ᪉ἲࡘ࠸᳨࡚ウࡋ࡚࠸ࡿࠋࡋ ࡋ࡞ࡀࡽ㸪X⥺㏱㐣ἲࡣ≉ู࡞タഛᶵჾ᭷㈨᱁⪅ࡀᚲせ࡛࠶ࡾᚲࡎࡋࡶ⡆౽࡞᪉ἲࡣゝ࠼ ࡞࠸ࠋ S.J. Barnett>@ࡣ Electrical Resistivity ࢆ⏝ࡋ㸪⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓࠋM Faifer >@ࡣ Magnetic Approach ࢆ⏝࠸࡚⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓࠋ 3.3 ⧄⥔ࡢ㓄ྥࡀຊᏛ≉ᛶཬࡰࡍᙳ㡪 ▷⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ≉ᚩࡣࡦࡧࢀⓎ⏕ᚋࡢ⧄⥔ࡼࡿᯫᶫຠᯝ࠶ࡾ㸪ࡇࡢᯫᶫຠ ᯝᑐࡋ࡚⧄⥔ࡢ㓄ྥ࣭ศᩓࡀࡁࡃᙳ㡪ࡍࡿࠋ᪤ ࡢ◊✲ࡼࢀࡤ㸪ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ 㓄ྥ࣭ศᩓᙳ㡪ࡍࡿせᅉࡋ࡚㸪⦎ΰࡐᚋࡢࣇࣞࢵࢩࣗᛶ≧㸪ᡴ㎸ࡳ᪉ἲ㸪౪ヨయࡢᙧ≧ᑍἲ㸪 ᆺᯟࡏࡁᯈຠᯝ࡞ࡀᣲࡆࡽࢀ㸪≉⦎ΰࡐᚋࡢࣇࣞࢵࢩࣗᛶ≧ᆺᯟࡏࡁᯈຠᯝࡀ⧄⥔ࡢ㓄 ྥ࣭ศᩓࡁࡃᙳ㡪ࡍࡿࡉࢀ࡚࠸ࡿࠋ M.C Torrijos>@ࡣᅗ ♧ࡍࡼ࠺㸪ᡴ㎸ࡳ᪉ἲࢆኚ࠼࡚౪ヨయࢆస〇ࡋ㸪౪ヨయ୰ࡢ⧄ ⥔ࡢ㓄ྥࢆホ౯ࡋ㸪౪ヨయࡢຊᏛ≉ᛶࡢᙳ㡪ࢆ᳨ウࡋࡓࠋヨ㦂࡛ࡣ㸪150×150×600mm ࡢ᭤ࡆ ౪ヨయࢆᑐ㇟ࡋ㸪౪ヨయࢆ❧࡚࡚㍈᪉ྥࡽᡴ㎸ࡴ᪉ἲ㸦ᅗ୰ V ࡛♧ࡋࡓࡶࡢ㸧㸪౪ヨయࡢ୰ ኸࡽࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࡴ᪉ἲ㸦ᅗ୰ C ࡛♧ࡋࡓࡶࡢ㸧 㸪ࢥࣥࢡ࣮ࣜࢺࢆࣃࣉ୰୍࡛ᐃࡢ㊥ 㞳ࢆὶືࡉࡏࡓᚋ㸪ᆺᯟࡢ➃㒊ࡽᡴ㎸ࡴ᪉ἲ㸦ᅗ୰ T ࡛♧ࡋࡓࡶࡢ㸧ࡢィ 3 ✀㢮ࡢᡴ㎸ࡳ᪉ ἲࢆ⏝࠸ࡓࠋ ࢥࣥࢡ࣮ࣜࢺ◳ᚋ㸪ᅗ̺ ♧ࡍࡼ࠺ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪᭤ࡆᙉᗘࢆồࡵࡓࠋࡲࡓ㸪 ⧄⥔ࡢ㓄ྥ࠾ࡼࡧᮏᩘࢆほᐹࡍࡿࡓࡵ㸪ᅗ̺ ♧ࡍࡼ࠺౪ヨయࢆษ᩿ࡋ㸪ྛษ᩿㠃ࡢ⧄⥔ ࡢ㓄ྥ࠾ࡼࡧᐦᗘࢆィ ࡋࡓࠋ ᅗ̺ ᭤ࡆヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋ౪ヨయ T ࡀ୍␒㧗࠸᭤ࡆᙉᗘࢆᚓࡽࢀ㸪ࡲࡓ㸪౪ヨయࢆࡓ ࡚࡚㍈᪉ྥࡽᡴ㎸ࢇࡔ౪ヨయ V ࡀ᭤ࡆᙉᗘࡀ୍␒పࡃ࡞ࡗࡓࠋᡴ㎸ࡳ᪉ἲࡼࡾ㸪౪ヨయࡢ ᭤ࡆᙉᗘࡀࡁࡃኚࡍࡿࡇࢆ♧ࡉࢀࡓࠋ A Abrishambaf ࡽ>@㸪R Zerbino ࡽ>@㸪S.J Barnett ࡽ>@㸪S.H Kwon ࡽ>@㸪P Pujadas ࡽ>@ ࡣࣃࢿࣝ≧ࡢヨ㦂యࢆᑐ㇟ࡋ࡚㸪ᡴ㎸ࡳ᪉ἲ㸪౪ヨయࡢษฟࡋ᪉ἲ࡞ኚࡉࡏ㸪⧄⥔ࡢ㓄ྥ ࡢ㐪࠸ࡼࡾຊᏛ≉ᛶࡀኚࡋࡓ⤖ᯝࢆሗ࿌ࡋ࡚࠸ࡿࠋ A Abrishambaf ࡽ>@ࡣ㸪ᅗ̺ ♧ࡍࡼ࠺㸪㛗ࡉ 1600mm㸪ᖜ 1000mm㸪㧗ࡉ 60mm ࡢࣃ ࢿࣝࡢ୰ᚰࡽࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࡳ㸪ࢥࣥࢡ࣮ࣜࢺ◳ᚋ㸪ࢥ౪ヨయࢆษฟࡋ࡚㸪ࢥࣥࢡࣜ ࣮ࢺࡢὶື᪉ྥᑐࡋ࡚ 0r 90rษḞࡁࢆᑟධࡋ㸪ᅗ̺ ♧ࡍࡼ࠺ヨ㦂࠾ࡼࡧ ୍㍈ᘬᙇヨ㦂ࢆᐇࡋ㸪౪ヨయࡢᘬᙇᙉᗘࢆィ ࡋࡓࠋヨ㦂ᚋ㸪◚᩿㠃ࡢ⧄⥔㓄ྥ≧ἣࢆほᐹࡋ㸪 ຊᏛ≉ᛶヨ㦂ࡢ⤖ᯝẚ㍑ࡋࡓࠋ 14 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ ᅗ̺ ౪ヨయࡢᡴ㎸ࡳ᪉ἲ>@ ᅗ̺ Ⅼ᭤ࡆヨ㦂>@ ᅗ̺ ౪ヨయෆ㒊ࡢ⧄⥔ࡢほᐹ>@ ᅗ̺ ౪ヨయࡢ᭤ࡆᙉᗘ>@ 15 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ ᅗ̺ ヨ㦂యࡢᑍἲࢥᢤࡁ౪ヨయࡢ⨨>@ (a)ヨ㦂౪ヨయ୍㍈ᘬᙇヨ㦂౪ヨయࡢᑍἲ (b) ヨ㦂୍㍈ᘬᙇヨ㦂⨨ ᅗ̺㻟 ヨ㦂୍㍈ᘬᙇヨ㦂⨨㼇㻞㼉㻌 ᅗ̺ ヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋᅗ̺ ୍㍈ᘬᙇヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋヨ㦂ࡣ౪ヨ యࡢᘬᙇᙉᗘࢆ㐣ホ౯ࡋ࡚࠸ࡿࡀ㸪࠸ࡎࢀࡢヨ㦂᪉ἲ࠾࠸࡚ࡶ㸪ࢥࣥࢡ࣮ࣜࢺࡢὶື᪉ྥ ᑐࡋ࡚ᖹ⾜ษḞࡁࢆᑟධࡋࡓヨ㦂యࡣ㸪㧗࠸ᘬᙇᙉᗘࢆᚓࡽࢀࡓࠋ⾲̺ ྛ౪ヨయࡢᖹᆒ ್ࢆ♧ࡍࠋࡲࡓ㸪ᅗ̺ ⧄⥔ࡢ㓄ྥゅᗘ ηθ ࠾ࡼࡧ᭷ຠ⧄⥔ᮏᩘ Neff ᘬᙇ㌾᭤⥺ࡢ㛵ಀ ࢆ♧ࡍࠋࡇࡇ࡛㸪᭷ຠ⧄⥔ᮏᩘ Neff ࡣ౪ヨయ◚᩿㠃࠾࠸࡚⧄⥔ࡢ⥲ᮏᩘᐃ⩏ࡉࢀ࡚࠸ࡿࠋྠ ᅗࡼࡾ㸪౪ヨయࡢᘬᙇᙉᗘࡣ⧄⥔ࡢ㓄ྥゅᗘ࠾ࡼࡧ◚᩿㠃࠾࠸࡚᭷ຠ⧄⥔ᮏᩘቑຍࡶ࡞ ࠸ࡁࡃ࡞ࡗࡓࠋ 16 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ ᅗ̺ ヨ㦂࠾ࡅࡿ Ȫ̽Z ᭤⥺Dȟ r㸪Eȟ r>@ ᅗ̺ ୍㍈ᘬᙇヨ㦂࠾ࡅࡿ Ȫ̽Z ᭤⥺Dȟ r㸪Eȟ r>@ ⾲̺㻟㻚㻝 ྛ౪ヨయࡢᘬᙇᙉᗘࡢᖹᆒ್㼇㻞㼉㻌 17 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ (a) ηθ≥0.80㸪Neff≥1.20 (b) 0.68‹ηθ‹0.80㸪0.41‹Neff ‹1.20 (c) ηθӊ0.68㸪Neffӊ ᅗ̺ ୍㍈ᘬᙇヨ㦂⤖ᯝ>@ 18 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ ➨ 3 ❶ཧ⪃ᩥ⊩ [1] J.L Chermant, L Chermant, M Coster, A.S Dequiedt, C.Redon㸸Some field of applications of automatic image analysis in civil engineering, Cement and Concrete Composite, Vol.23, pp.157-169, 2001 [2] A Abrishambaf, J.A.O Barros, V.M.C.F Cunha: Relation between fibre distribution and post-cracking behaviour in steel fibre reinforced self-compacting concrete panels, Cement and Concrete Research, Vol.(51), pp.57-66, 2013 [3] S.T Kang, J.K Kim: The relation between fiber orientation an tensile behavior in an Ultra High Performance Fiber Reinforced Cementitious Composites(UHPFRCC), Cement and Concrete Research, Vol.41, pp.1001-1014, 2011 [4] E.S Lappa, C.R Braam, J.C Walraven: Static and Fatigue Bending Tests of Ultra High Performance Concrete, Proceedings of the International Symposium on Ultra High Performance Concrete, pp. 449-458, Kassel, 2004. [5] P Stahli, R Custer, J.G.M.V Mier: On flow properties, fibre distribution, fibre orientation and flexural behaviour of FRC, Materials and Structures, Vol.41, No.1, pp.189-196, 2008 [6] ᑠᏘ㸪㧗ᶫᆂ୍㸪ᰩ⏣Ᏺᮁ㸪ᅜᯞ⛱㸸▷⧄⥔⿵ᙉࢭ࣓ࣥࢺ⣔ᮦᩱࡢ⧄⥔㓄ྥࡀຊᏛᛶ⬟ ཬࡰࡍᙳ㡪㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.35㸪No.1㸪pp.295-230㸪2013 [7] 㤿ሙᘯ㸪ఀ⸨ဴ⏨㸪ྜྷṊຬ㸪୰ᕝᾈ㸸X ⥺㏱㐣ᙳࡼࡿ㗰⧄⥔ࡢ㓄ྥಀᩘࡢホ౯᪉ ἲ㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.27㸪No.1㸪pp.259-264㸪2005 [8] S.J Barnett, J.F Lataste, T Parry, S.G Millard, M.N Soutsos: Assessment of fiber orientation in ultra high performance fiber reinforced concrete and its effect on flexural strength, Materials and Structures, Vol. 43, No. 7, pp. 1009-1023, 2010 [9] M Faifer, R Ottoboni, S Toscani, L Ferrara: Nondestructive testing of steel-fiber-reinforced concrete using a magnetic approach, IEEE Transactions on Instrumentation and Measurement, Vol.60, pp.1709-1717, 2011 [10] M.C Torrijos, B Barragan, R Zerbino: Placing conditions, mesostructural characteristics and postcracking response of fibre reinforced self-compacting concrete. Construction and Building Materials, Vol.24, pp.1078-85, 2010 [11] R Zerbino, J.M Tobes, M.E Bossio, G Giaccio: On the orientation of fibres in structural members fabricated with self compacting fibre reinforced concrete. Cement and Concrete Composite, Vol.34, pp.191200, 2012 [12] S.J Barnett, J.F Lataste, T Parry, S.G Millard, M.N Soutsos: Assessment of fiber orientation in ultra high performance fiber reinforced concrete and its effect on flexural strength, Materials and Structures, Vol. 43, No. 7, pp. 1009-1023, 2010 [13] S.H Kwon, S.T Kang, B.Y Lee, J.K Kim: The variation of flow-dependent tensile behavior in radial flow dominant placing of Ultra High Performance Fiber Reinforced Cementitious Composites (UHPFRCC), Construction and Building Materials, Vol. 33, pp. 109 – 121, 2012 19 ➨ 3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ [14] P Pujadas, A Blanco, S Cavalaro, A.D.L Fuente, A Aguado: Fibre distribution in macro-plastic fibre reinforced concrete slab-panels. Construction and Building Materials, Vol.64, pp.496-503, 2014 20 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 4.1 ࡣࡌࡵ ᮏ❶࡛ࡣࠊ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ㐺⏝⠊ᅖࡢᣑࢥࢫࢺࡢపῶࢆ┠ᣦࡋ㸪ᚑ᮶ࡢ 㗰⧄⥔ࡢ௦ࢃࡾ㸪ᕷ㈍ࡢྛ✀࣏ࣜࣅࢽࣝࣝࢥ㸫ࣝ(PVA)⧄⥔ࢆ⏝࠸ࡓሙྜࡢຊᏛ≉ᛶࡘ࠸࡚ ᳨ウࡋࡓࠋ ࡉࡽ㸪 ᮏ❶࡛㑅ᐃࡋࡓ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࢆ 2 ✀㢮ࡢᡴ㎸ࡳ᪉ἲࢆ⏝࠸࡚㸪㛗ࡉ 2600mm㸪 ᖜ 450mm㸪ཌࡉ 100mm ࡢࣃࢿࣝ㒊ᮦᡴ㎸ࡳ㸪◳ᚋ㸪100×100×400mm ࡢ᭤ࡆ౪ヨయࢆษࡾ ฟࡋ㸪ษࡾḞࡁᱱࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪ᡴ㎸ࡳ᪉ἲ࠾ࡼࡧ౪ヨయࡢษࡾฟࡋࡢ᪉ྥ㸪⨨ࡀ᭤ ࡆᣲືཬࡰࡍᙳ㡪ࢆ᳨ウࡋࡓࠋ 4.2 ᐇ㦂ᴫせ 4.2.1 PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ 4.2.1.1 ⏝ᮦᩱ࠾ࡼࡧ㓄ྜ ⾲̺ ⏝ᮦᩱࢆ♧ࡍࠋ⾲̺ ࡣ⏝ࡋࡓ࣏ࣜࣅࢽࣝࣝࢥ㸫ࣝ⧄⥔ࡢᴫせࢆ♧ࡍࠋ ⏝ࡋࡓ⧄⥔ࢆ┿̺ ♧ࡍࠋUFC ࡢ㓄ྜࢆ⾲̺ ♧ࡍࠋ㓄ྜϨࡣྛ✀⧄⥔ࡢ≉ᛶࢆẚ㍑ ࡍࡿࡇࢆ┠ⓗࡋ࡚㸪ࣇࣞࢵࢩࣗࡢὶືᛶࢆ☜ಖࡍࡿࡓࡵ㸪W/C ࢆࡁࡃࡋ࡚⧄⥔ࡢΰ ධ㔞ࢆᑡ࡞ࡃࡋࡓࡶࡢ࡛࠶ࡿࠋ㓄ྜϩࡣ㸪㓄ྜϨࡢ⤖ᯝࡽΰධ㔞ࢆቑຍ࡛ࡁࡿ⧄⥔ࡘ࠸࡚㸪 W/C ࢆపῶࡋ࡚ΰධ㔞ࢆከࡃࡋࡓࡶࡢ࡛࠶ࡿࠋ㓄ྜϪࡣ㸪㓄ྜϩࡢ⤖ᯝࡽ 2 ✀㢮ࡢ⧄⥔ࢆΰ ྜࡋ࡚⏝࠸ࡓࡶࡢ࡛࠶ࡿࠋ㓄ྜϫ㸪Ϭࡣ⧄⥔ FE ࢩࣜ㸫ࢬ㐺⏝ࡋࡓࡶࡢ࡛࠶ࡿࠋ ⾲̺ ⏝ᮦᩱ ✀㢮 ྡ⛠ グྕ ≀ᛶ ⦎ΰࡐỈ ୖỈ㐨Ỉ W ࢭ࣓ࣥࢺ ࢩࣜ࢝ࣇࣗ㸫࣒ࢭ࣓ࣥࢺ C ⣽㦵ᮦ ⌛◁ S 6 ྕ⌛◁㸪ᐦᗘ 2.6g/cm3 ᚤ⢊ᮎᮦᩱ ⌛▼⢊ᮎ P ᐦᗘ 2.6g/cm3㸪ẚ⾲㠃✚ 0.812m2/g ΰ 㧗ᛶ⬟ῶỈ Ad ࣏ࣜ࢝ࣝ࣎ࣥ㓟࢚㸫ࢸࣝ⣔ྜ≀ ⧄⥔ ࣏ࣜࣅࢽࣝࣝࢥ㸫ࣝ⧄⥔ F ᕷ㈍ࡢ⧄⥔㸦ᵝࡣ⾲̺ ཧ↷㸧 ᐦᗘ㸸3.08g /m3㸪ẚ⾲㠃✚ 0.6 m2/g㸪 ࢩࣜ࢝ࣇࣗ㸫࣒⨨⋡ 20% ┿̺ 39$ ⧄⥔ 21 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ⾲̺ 39$ ⧄⥔ ᐦᗘ (g/cm3) ┤ᚄ (μm) 㛗ࡉ (mm) ᘬᙇᙉᗘ (MPa) FA 40 8 1400 FB 40 12 1560 100 12 1200 200 18 975 660 30 20 15 900 ⧄⥔ ྡ⛠ FC 1.3 FD FEձ FEղ FEճ ⾲̺ 8)& ࡢ㓄ྜ ༢㔞(kg/ m3) 㓄ྜ W/C (%) Ϩ ϩ Ϫ Air (%) W C S P Ad Ad/C (%) F (%) ⧄⥔ࡢ✀㢮 22 231 1124 609 221 17 1.5 1.8 FA㸪FB㸪FC㸪 FD㸪FE 19 196 1152 624 227 23 2.0 3.0 FC㸪FD㸪FEձ 18 5 175 1166 632 229 3.0 35 ϫ 3.0 165 1181 640 232 3.0 164 1168 633 230 4.0 17 Ϭ FCE1 (FC1.0% FEձ2.0%) FCE2 (FC1.5% FEձ1.5%) FCE3 (FC2.0% FEձ1.0%) FEձ㸪FEղ㸪 FEճ FEղ㸪FEճ 4.2.1.2 ⦎ࡾΰࡐ᪉ἲ࠾ࡼࡧ౪ヨయࡢస〇࣭㣴⏕ ⦎ࡾΰࡐࡣ㸪㓄ྜϨ㸪ϩ㸪Ϫࡣᐜ㔞 10L ࡢ࣍ࣂ㸫ࢺ࣑࢟ࢧࢆ⏝࠸ࡓࠋ㓄ྜϫ㸪Ϭࡣ 120L ࡢ 2 ㍈ᙉไ⦎ࡾ࣑࢟ࢧࢆ⏝ࡋࡓࠋ࡞࠾㸪࠸ࡎࢀࡢ㓄ྜࡶ㸪⧄⥔௨እࡢᮦᩱࢆᢞධᚋ㸪ᡤせࡢὶືᛶ ࡀᚓࡽࢀࡿࡲ࡛⦎ࡾΰࡐࢆ⾜࠸㸪ࡑࡢᚋ⧄⥔ࢆᢞධࡋ㸪⦎ࡾΰࡐࢆ⾜ࡗࡓࠋ ౪ヨయࡢᑍἲࡣ㸪㓄ྜϨࡘ࠸࡚ࡣ φ5×10cm ࡢᅽ⦰౪ヨయ 4×4×16cm ࡢ᭤ࡆ౪ヨయ࡛㸪㓄 ྜϩ㸪Ϫ㸪ϫ㸪Ϭࡘ࠸࡚ࡣ㸪φ10×20cm ࡢᅽ⦰౪ヨయ 10×10×40cm ࡢ᭤ࡆ౪ヨయࢆ⏝࠸ࡓࠋ ౪ヨయࡢ㣴⏕ࡣ㸪ᡴ㎸ࡳᚋ㸪୍ḟ㣴⏕ࡋ࡚ 20Υ㸫48 㛫ࡢᑒ⥸㣴⏕ࢆ⾜࠸㸪ࡑࡢᚋᡴᆺࡋ㸪 ࡉࡽḟ㣴⏕ࡋ࡚ 90Υ㸫48 㛫(᪼㝆 15Υ/hr)ࡢẼ㣴⏕ࢆ⾜ࡗࡓࠋ 4.2.1.3 ຊᏛ≉ᛶࡢヨ㦂᪉ἲ ヨ㦂ࡣ㸪ࣔࣝࢱࣝࣇࣟ㸫㸦0 ᡴ㸧ヨ㦂㸪ᅽ⦰ᙉᗘヨ㦂࠾ࡼࡧ᭤ࡆᙉᗘヨ㦂ࡋࡓࠋ᭤ࡆᙉᗘヨ 㦂ࡣᅗ̺ ♧ࡍࡼ࠺࡞ษḞࡁᱱࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪Ⲵ㔜㸫ࡦࡧࢀ㛤ཱྀኚࢆィ ࡋ ࡓࠋヨ㦂ࡣࠕษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡࣜ㸫ࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲࠖ㸦JCI㸫S㸫 002㸫2003㸧>@‽ࡌ࡚⾜ࡗࡓࠋ 22 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ᅗ̺ ษḞࡁᱱࡢ Ⅼ᭤ࡆヨ㦂 4.2.2 ᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪 4.2.2.1 PVA ⧄⥔ UFC ࡢ㓄ྜ ྛ✀ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶࡢᐇ㦂⤖ᯝࡣḟ⠇࡛㏙ࡿࡀ㸪ᐇ㦂ࡢ⤖ᯝ㸪๓⠇ࡢ㓄ྜϪ ࢆ⏝࠸࡚㸪⧄⥔ FC2.0% FEձ1.0%ࢆΰධࡋࡓሙྜ㸪ὶືᛶࢆ☜ಖࡋࡓ࠺࠼࡛㸪㧗࠸ᅽ⦰ᙉᗘ ᭤ࡆᙉᗘࡀᚓࡽࢀࡓࠋࡑࡇ࡛㸪ᮏᐇ㦂࡛ࡣ㓄ྜϪࢆ⏝࠸ࡓࠋ 4.2.2.2 ヨ㦂యࡢస〇 ᮏᐇ㦂࡛⏝࠸ࡓヨ㦂యࡢ✀㢮ࢆ⾲̺ ♧ࡍࠋ౪ヨయ A ࡣ 100×100×400mm ࡢᶆ‽᭤ࡆ౪ヨ య࡛࠶ࡾ㸪ࣃࢿࣝヨ㦂య B㸫1㸪B㸫2㸪C㸫1㸪C㸫2 ࡣᅗ̺ ♧ࡍࡼ࠺㸪㛗ࡉ 2600mm㸪ᖜ 450mm㸪ཌࡉ 100mm ࡛ࡍ࡚ྠ୍ᑍἲ࡛࠶ࡿࠋ ᡴ㎸ࡳ᪉ἲࡣ㸪ᮏᐇ㦂ࡢࣃ࣓ࣛ㸫ࢱࡋ࡚㸪ᅗ̺D♧ࡍࡼ࠺㸪ᆺᯟࢆ 5.7rഴࡅ࡚㸪 ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀ㸦࣍ࢵࣃ㸫㸧ࢆᆺᯟࡢ∦➃ᅛᐃࡋࢥࣥࢡࣜ㸫ࢺࢆᆺᯟෆ࡛ὶືࡉࡏ࡚ᡴ ࡕ㎸ࡴ᪉ἲ㸦௨ୗ㸪ὶືᡴ㎸ࡳࡪ㸧ᅗ̺E♧ࡍࡼ࠺㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀ㸦࣍ ࢵࣃ㸫㸧ࢆヨ㦂య㍈᪉ྥ㐃⥆ⓗ⛣ືࡉࡏ࡚ᡴࡕ㎸ࡴ᪉ἲ㸦௨ୗ㸪⛣ືᡴ㎸ࡳࡪ㸧ࡢ 2 ✀ 㢮ࡋࡓࠋ ⾲̺4.4 ヨ㦂య〇సᵝ ࣂࢵࢳ NO. ヨ㦂య✀ู 1.2.3.4 A 1 ᡴ㎸ࡳ᪉ἲ ᩘ㔞㸦య㸧 ὶື 20 ᡴ㎸ࡳ 㸦ྛࣂࢵࢳ 5㸧 B㸫1 ὶື 1 2 B㸫2 ᡴ㎸ࡳ 1 3 C㸫1 ⛣ື 1 4 C㸫2 ᡴ㎸ࡳ 1 23 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 100 450㻌 (mm) 2600㻌 ᅗ̺ ࣃࢿࣝヨ㦂యࡢᑍἲ ࣍ࢵࣃ࣮⨨ࢆᅛᐃࡋ࡚ᡴ㎸ࡳ 㻌 㻌 㻡㻚㻣㼐㼑 (a) ὶືᡴ㎸ࡳ᪉ἲ㻌 ࣍ࢵࣃ࣮ࢆ⛣ືࡉࡏ࡚ᡴ㎸ࡳࠊ㻞 ⛬ᗘ࡛ᡴ㎸ࡳ㻌 (b) ⛣ືᡴ㎸ࡳ᪉ἲ ᅗ̺ ᡴ㎸ࡳ᪉ἲ 24 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 4.2.2.3 㣴⏕᪉ἲ ᅇࡢᐇ㦂࡛ࡣ㸪ᡴタ⤊ᚋ㸪୍ḟ㣴⏕ࡋ࡚㸪ᆺᯟෆ࡛ 50ΥࡢẼ㣴⏕ࢆ 12 㛫⾜࠸㸪ࡑ ࡢᚋ⬺ᆺࡋ㸪ࡉࡽḟ㣴⏕ࡋ࡚㸪50ΥࡢẼ㣴⏕ࢆ 78 㛫⾜ࡗࡓࠋ࡞࠾㸪Ẽ㣴⏕ࡢ᪼ ㏿ᗘࡣ㸪15Υ/hr ࡋࡓࠋ 4.2.2.4 ヨ㦂యࡢษ᩿᪉ἲ 㣴⏕⤊ᚋ㸪ᅗ̺ ♧ࡍࡼ࠺㸪ࢥࣥࢡࣜ㸫ࢺ࢝ࢵࢱ࣮ࢆ⏝࠸࡚ヨ㦂య B㸫1㸪B㸫2㸪C㸫 1㸪C㸫2 ࢆษ᩿ࡋࡓࠋヨ㦂య B㸫1 C㸫1 ࡣࣃࢿࣝࡢ㛗㎶᪉ྥᆶ┤ษ᩿ࡋ㸪ヨ㦂య B㸫2 C 㸫2 ࡣ㛗㎶᪉ྥᖹ⾜ษ᩿ࡋࡓࠋ౪ヨయ A ࡣࡍ࡚ഃ㠃 30㹫㹫῝ࡉࡢษࡾḞࡁࢆຍᕤࡋࡓࠋ ヨ㦂య B㸫1 C㸫1 ࡽษࡾฟࡋࡓ౪ヨయࡣᡴ㎸ࡳ㠃ᆺᯟᗏ㠃࡛ 30mm ῝ࡉࡢษࡾḞ ࡁࢆຍᕤࡋࡓࠋ ヨ㦂య B㸫2 C㸫2 ࡽษࡾฟࡋࡓ౪ヨయࡣࡍ࡚ᆺᯟᗏ㠃 30mm ῝ࡉࡢษࡾḞࡁࢆຍᕤ ᆺᯟ㠃䠄ୗ㠃䠅 㻡㼙㼙௨ୗ 㻡㼙㼙௨ୗ ᡴタ㠃䠄ୖ㠃䠅 㻟㻜㼙㼙 ᡴタ㠃䠄ୖ㠃䠅 㻟㻜㼙㼙 ࡋࡓࠋ ᆺᯟ㠃䠄ୗ㠃䠅 㻞㻡㻝㻡㼙㼙 ษ᩿᪉ྥ䚷䐟 B-1, C-1㻌 ษ᩿᪉ྥ䚷䐠 24 1 5 4 24 㻝㻜㻜㼙㼙 B-2, C-2㻌 1 2 㻠㻜㻜㼙㼙 㻢㻡㼙㼙 㻠㻝㻡㼙㼙 㻞㻢㻜㻜㼙㼙 ᅗ̺ ヨ㦂యࡢษ᩿᪉ἲ࠾ࡼࡧ౪ヨయࡢษḞࡁసᴗ 4.2.2.5 ヨ㦂᪉ἲ ࣇࣟ㸫ヨ㦂࠾ࡼࡧࢥࣥࢡࣜ㸫ࢺ◳ᚋࡢᅽ⦰ᙉᗘヨ㦂ษḞࡁᱱࡢ 3 Ⅼ᭤ࡆᙉᗘヨ㦂ࢆᐇ ࡋࡓࠋ 25 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 4.3 ᐇ㦂⤖ᯝ 4.3.1 PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ 4.3.1.1 ࣇࣞࢵࢩࣗᛶ≧ ᅗ ࣇࣟ㸫ヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋ㓄ྜϨࡢሙྜ㸪⣽࠸⧄⥔ FA FB ࡛ࡣࣇࣟ㸫ࡀ 160mm ࡞ࡾ㸪ࡇࢀ௨ୖ⧄⥔ࢆΰධࡍࡿࡇࡀᅔ㞴࡞ࡗࡓࠋ୍᪉㸪ኴ࠸⧄⥔ FC㸪FD㸪FEձ࡛ࡣࣇࣟ 㸫ࡀ 300mm ௨ୖ࡞ࡾ㸪ࡉࡽ㸪ΰධ⋡ࢆቑຍ࡛ࡁࡿ≧ἣ࡛࠶ࡗࡓࠋ࡞࠾㸪UFC ࢆ⮬ᕫሸࡍ ࡿሙྜࡣࣇࣟ㸫ࡣ 200mm ௨ୖࡀᚲせ࡛࠶ࡾ㸪ᮏᐇ㦂࡛ࡣࡇࢀࢆ┠Ᏻࡋࡓࠋ ኴ࠸⧄⥔ FC㸪FD㸪FEձࡘ࠸࡚ΰධ㔞ࢆ 3.0%ࡋࡓ㓄ྜϩ࡛ࡣ㸪ࣇࣟ㸫ࡣ 200mm ⛬ᗘ࡞ ࡗࡓࡀ㸪┿̺ ♧ࡍࡼ࠺⧄⥔ FEձ࡛ࡣࣔࣝࢱࣝࡀศ㞳ࡍࡿഴྥࡀぢࡽࢀࡓࠋࡑࡇ࡛㸪 㓄ྜϪ࡛ࡣ⧄⥔ FC FEձࢆΰྜࡋ࡚⏝࠸ࡿࡇࡋ㸪ࡑࡢΰྜྜࢆኚࡉࡏࡿࡇࡋࡓࠋ ࡑࡢ⤖ᯝ㸪⧄⥔ FEձࡀከ࠸⧄⥔ࣔࣝࢱࣝࡀศ㞳ࡍࡿഴྥࡀᙉࡃ㸪⧄⥔ FC2%⧄⥔ FEձ1% ࡋࡓሙྜࡣࣇࣟ㸫ࡀ 200mm ࡛ศ㞳ࡶࡰぢࡽࢀ࡞ࡗࡓࠋ ࡲࡓ㸪⧄⥔ FEձࡢศ㞳ࢆᨵၿࡍࡿࡓࡵ㸪⧄⥔ FEձࡢ㛗ࡉࢆኚࡉࡏ࡚ΰධࡋࡓ㓄ྜϫ࡛ࡣ㸪 ⧄⥔㛗ࡀ▷ࡃࡋࡓ⧄⥔ FEղ⧄⥔ FEճࢆ 3.0%ΰධࡋࡓሙྜࡣ㸪ࣇࣟ㸫್ࡣ 270mm ࡞ࡾ㸪 ⧄⥔ࣔࣝࢱ࣐ࣝࢺࣜࢡࢫࡢศ㞳ࡶぢࡽࢀ࡞ࡗࡓࠋ ࡉࡽ㸪⧄⥔ FEղ⧄⥔ FEճࢆ 4.0%ΰධࡋࡓ㓄ྜϬ࡛ࡣ㸪ࣇࣟ㸫್ࡣ 270mm ࡛㸪⧄⥔ࡢΰ ධ㔞ࢆ 3%ẚ࡚ࡶ㸪ࣇࣟ㸫್ࡢపୗࡣぢࡽࢀ࡞ࡗࡓࠋ ௨ୖࡽࠊྠ୍㓄ྜ⧄⥔ΰධ㔞࠾࠸࡚ࠊ⧄⥔ᚄࡀኴࡃ࡞ࡿࠊ⧄⥔㛗ࡀ▷ࡃ࡞ࡿࠊ ࣇ್࣮ࣟࡀࡁࡃ࡞ࡿഴྥࢆ♧ࡉࢀࡓࠋ ࣇ࣮ࣟ(mm) 500 㓄ྜ/ ⧄⥔ΰධ㔞 400 300 Ϩ;1.8% 200 100 ϩ;3.0% 0 Ϫ;3.0% FA FB FC FD FEձ FEղ FEճ FCE1 FCE2 FCE3 ⧄⥔✀㢮 ᅗ̺ ࣇࣟ㸫ヨ㦂⤖ᯝ ┿̺ ᮦᩱศ㞳≧ἣ 26 ϫ;3.0% Ϭ;4.0% ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 4.3.1.2 ᅽ⦰ᙉᗘヨ㦂⤖ᯝ ᅽ⦰ᙉᗘヨ㦂⤖ᯝࢆᅗ̺ ♧ࡍࠋỈࢭ࣓ࣥࢺẚࡢపῶࡼࡾᅽ⦰ᙉᗘࡀᖜቑຍࡋࡓࠋ 㓄ྜϨ࡛ࡣ㸪Ỉࢭ࣓ࣥࢺẚࡀ 22%࡛㸪⧄⥔✀㢮㛵ࢃࡽࡎ㸪ᅽ⦰ᙉᗘࡀࡰ 100N/mm2 ⛬ᗘ࡛࠶ ࡗࡓࠋ㓄ྜϩ࡛ࡣ㸪Ỉࢭ࣓ࣥࢺẚࡀ 19%࡛㸪ྠ୍ΰධ㔞ୗ㸪⧄⥔ࡀ⣽ࡃ㸪▷࠸㸪㧗࠸ᅽ⦰ᙉ ᗘࡀᚓࡽࢀࡓࠋ㓄ྜϪ࡛ࡣ㸪Ỉࢭ࣓ࣥࢺẚࡀ 18%࡛㸪✀㢮ࡢ⧄⥔ࡢΰධྜࡀኚࡋ࡚ࡶ㸪 ࡰྠ⛬ᗘࡢ 140 N/mm2 ࡢᅽ⦰ᙉᗘࡀᚓࡽࢀࡓࠋ㓄ྜϫ࡛ࡣ㸪Ỉࢭ࣓ࣥࢺẚࡀ 17%࡛㸪⧄⥔ FE ձ ࡀ᭱ࡶ㧗࠸ᅽ⦰ᙉᗘࡀᚓࡽࢀࡓࡀ㸪⧄⥔㛗ࡀ▷ࡃࡋࡓ⧄⥔ FEղ㸪FEճ࡛ࡣ㸪ᅽ⦰ᙉᗘࡀపୗࡍ ࡿഴྥࡀぢࡽࢀࡓࠋࡑࡢ⌮⏤㸪ኴᚄࡢ⧄⥔ᑐࡋ࡚㸪⧄⥔㛗ࡀ▷ࡍࡂࡿ㸪⿵ᙉຊࡀపୗࡍࡿ ⪃࠼ࡽࢀࡿࠋ㓄ྜϬ࡛ࡣ㸪㓄ྜϫẚ࡚㸪⧄⥔ΰධ㔞ࡀቑຍࡋ࡚ࡶ㸪ᅽ⦰ᙉᗘࡣపୗࡋ࡞ࡗ ࡓࠋ ᅽ⦰ᙉᗘ(N/mm2) 200 㓄ྜ/ ⧄⥔ΰධ㔞 150 Ϩ;1.8% 100 ϩ;3.0% 50 Ϫ;3.0% 0 FA FB FC FD FEձ FEղ FEճ FCE1 FCE2 FCE3 ⧄⥔✀㢮 ϫ:3.0% Ϭ;4.0% ᅗ̺ ᅽ⦰ᙉᗘ 4.3.1.3 ᭤ࡆᙉᗘヨ㦂⤖ᯝ ษࡾḞࡁࡣࡾࡢ 3 Ⅼ᭤ࡆヨ㦂࡛ᚓࡽࢀࡓⲴ㔜㸫㛤ཱྀኚ᭤⥺ࢆᅗ̺ ♧ࡍࠋ㓄ྜϨࡢሙ ྜ㸪⧄⥔ FA㸪FB ࡣᙉᗘࡀ㧗ࡃ࡞ࡗࡓࡀ㸪ᙉᗘⅬ௨㝆ࡢᛂຊపୗࡀᛴ⃭࡛࠶ࡗࡓࠋ⧄⥔ FC㸪FD㸪 FEձࡣ⧄⥔ FA 㸪FB ẚࡿᙉᗘࡣపࡃ࡞ࡗࡓࡀ㸪ᘏᛶⓗ࡞ᣲື࡞ࡗࡓࠋ⧄⥔ΰධ㔞ࢆ 3% ࡋࡓ㓄ྜϩ࡛ࡣ⧄⥔ FEձࡀ᭱ࡶᙉᗘࡀ㧗ࡃ࡞ࡗࡓࠋࡋࡋ㸪ୖ㏙ࡢ㏻ࡾ⧄⥔ FEձ࡛ࡣᮦᩱศ 㞳ࡀ⏕ࡌࡿࡓࡵ㸪ࡇࡢࡲࡲ࡛ࡣ⏝࡛ࡁ࡞࠸ࠋࡑࡇ࡛㸪㓄ྜϩࡢ⤖ᯝࡼࡾ㸪⧄⥔ FEձࢆΰྜࡋ ࡓࡢࡀ㓄ྜϪ࡛࠶ࡿࠋ㓄ྜϪ࡛ࡣ⧄⥔ FEձ FC ࡢΰྜྜࢆኚࡉࡏࡓࡀ㸪᭤ࡆ≉ᛶࡣ ࢇኚࡋ࡞࠸⤖ᯝ࡞ࡗࡓࠋ 㓄ྜϫ࡛ࡣ㸪FEձࢆ⏝ࡋࡓሙྜ㸪ᮦᩱศ㞳ࡀ⏕ࡌࡓࡀ㸪㧗࠸᭤ࡆᙉᗘࡀᚓࡽࢀࡓࠋ⧄⥔㛗ࡀ ▷ࡃ࡞ࡿ㸪᭤ࡆᙉᗘࡀపୗࡍࡿഴྥࡀぢࡽࢀ㸪⧄⥔ࣔࣝࢱ࣐ࣝࢺࣜࢡࢫࡢ╔ຊࡀ㊊ࡾ࡞ࡃ ࡞ࡿࡓࡵ⪃࠼ࡽࢀࡿࠋ 㓄ྜϬ࡛ࡣ⧄⥔ΰධ㔞ࢆቑຍࡋ࡚ࡶ㸪᭤ࡆᙉᗘࡣᖜࡣቑຍࡋ࡞ࡗࡓࠋ 4.3.2 ᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪 4.3.2.1 ࣇࣞࢵࢩࣗᛶ≧ᅽ⦰ᙉᗘヨ㦂⤖ᯝ ྛࣂࢵࢳࡢࣇࣞࢵࢩࣗᛶ≧ᅽ⦰ᙉᗘヨ㦂⤖ᯝࢆ⾲̺ ♧ࡍࠋ⧄⥔ΰධᚋࡢࣇࣟ㸫್ࡣ࠸ 27 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ࡎࢀࡶ 220mm ⛬ᗘ࡛㸪ࣂࢵࢳ㛫ࡢᕪࡣ↓ࡗࡓࠋᅽ⦰ᙉᗘヨ㦂ࡢ⤖ᯝ㸪ᅇࡢ㣴⏕ ᗘࡀᶆ‽ ⇕㣴⏕␗࡞ࡿࡓࡵ㸪ⱝᖸపࡃ࡞ࡗࡓࡀ㸪ࣂࢵࢳ㛫ࡢᕪࡣ↓ࡗࡓࠋ 20 FA FB FC FD FEձ ⧄⥔ΰධ㔞 1.8% 15 10 ᭤ࡆᛂຊ㸦N/mm2) ᭤ࡆᛂຊ㸦N/mm2) 20 15 10 5 0 0 1 2 3 4 㛤ཱྀኚ㸦mm㸧 FC FD FEձ ⧄⥔ΰධ㔞 3% 5 0 0 5 1 2 3 4 㛤ཱྀኚ㸦mm㸧 5 D㓄ྜϨ E㓄ྜϩ ⧄⥔ΰධ㔞 3% 15 20 FCEձ FCEղ FCEճ ᭤ࡆᛂຊ㸦mm2㸧 ᭤ࡆᛂຊ㸦N/mm2) 20 ⧄⥔ΰධ㔞 3% 15 10 FEձ FEղ FEճ FEղ FEճ 4% 10 5 0 0 1 2 3 4 㛤ཱྀኚ㸦mm㸧 5 0 0 5 1 2 3 4 㛤ཱྀኚ㸦mm㸧 5 F㓄ྜϪ G㓄ྜϫ㸪Ϭ ᅗ̺ ᭤ࡆᛂຊ㸫ࡦࡧࢀ㛤ཱྀኚ᭤⥺ ⾲̺ ࣇࣞࢵࢩࣗᛶ≧ᅽ⦰ᙉᗘ ࣂࢵࢳ ヨ㦂య ⦎ࡾୖࡀࡾ ᗘ ࣇࣟ㸫 ✵Ẽ㔞 ༢ᐜ✚㉁㔞 ᅽ⦰ᙉᗘ NO. NO. 㸦Υ㸧 㸦mm㸧 㸦%㸧 㸦g/L㸧 㸦N/mm2㸧 1 B㸫1 33 229 7.8 2262 137 2 C㸫1 26 225 7.2 2281 138 3 B㸫2 25 208 6.0 2298 139 4 C㸫2 33 233 7.2 2255 134 4.3.2.2 ᶆ‽᭤ࡆ౪ヨయࡢヨ㦂⤖ᯝ ᅗ̺ ྛࣂࢵࢳࡢ 100×100×400mm ᶆ‽᭤ࡆ౪ヨయ A ࡢ 3 Ⅼ᭤ࡆヨ㦂⤖ᯝࢆ♧ࡍࠋࣂࢵࢳ 㛫ࡢᕪࡣࢇぢࡽࢀ࡞ࡗࡓࠋ 4.3.2.3 ࣃࢿࣝ㒊ᮦࡽษࡾฟࡋࡓ᭤ࡆ౪ヨయࡢヨ㦂⤖ᯝ ὶືᡴ㎸ࡳ᪉ἲࢆ⏝࠸ࡓࣃࢿࣝ B㸫1 ࡛㸪ࢥࣥࢡࣜ㸫ࢺࡢὶື᪉ྥᑐࡋ࡚ᆶ┤ษࡾฟࡋࡓ ౪ヨయࡢ 3 Ⅼ᭤ࡆヨ㦂ࡢ⤖ᯝࢆᅗ̺D♧ࡍࠋࡇࡇ࡛ࡣ㸪ࣃࢿࣝෆࡢ⨨ࡀ㏆࠸ 8 ᮏࡢ౪ヨ 28 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 20 ࣂࢵࢳNO.1 ࣂࢵࢳNO.2 ࣂࢵࢳNO.3 ࣂࢵࢳNO.4 15 ᭤ࡆᛂຊ㸦N/mm2㸧 ᭤ࡆᛂຊ㸦N/mm2㸧 20 15 10 10 5 0 0 ࣂࢵࢳNO.1 ࣂࢵࢳNO.2 ࣂࢵࢳNO.3 ࣂࢵࢳNO.4 0.1 0.2 0.3 0.4 㛤ཱྀኚ㸦mm㸧 5 0 0 0.5 1 2 3 4 㛤ཱྀኚ㸦mm㸧 5 Dึᮇ㒊ศ Eయ ᅗ̺ ౪ヨయ $㸦PP㸧ࡢ᭤ࡆヨ㦂⤖ᯝ D%㸫 E%㸫 F&㸫 G&㸫 ᅗ̺ ࣃࢿࣝ㒊ᮦࡽษࡾฟࡋࡓ᭤ࡆ౪ヨయࡢヨ㦂⤖ᯝ యࢆ୍⤌ࡋ㸪ᆺᯟᗏ㠃ഃษࡾḞࡁࡢ࠶ࡿ౪ヨయ 4 ᮏ㸪ᡴ㎸ࡳ㠃ഃษࡾḞࡁࡢ࠶ࡿ౪ヨయ 4 ᮏࡎࡘ㸪3 ⤌ࢆศࡅ࡚㸪ࡑࢀࡒࢀࡢᖹᆒ್࡛♧ࡋࡓࠋ ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࡽ㞳ࢀࡿ㸪ࡍ࡞ࢃࡕ㸪ὶື㊥㞳ࡀ㛗ࡃ࡞ࡿ㸪᭤ࡆᙉᗘࡀపୗ ࡍࡿഴྥࡀぢࡽࢀࡓࠋࡑࡢ⌮⏤ࡋ࡚㸪ὀࡂཱྀࡽ㞳ࢀࡿ㸪⧄⥔ࡀࢥࣥࢡࣜ㸫ࢺ୰ࡢὶື᪉ ྥᥞ࠺ഴྥࡀ౪ヨయࡢ◚᩿㠃ࡽ☜ㄆࡉࢀࡓࠋ ᅗ̺ ౪ヨయࡢࡦࡧࢀᙉᗘ᭤ࡆᙉᗘࢆ♧ࡍࠋࡲࡓ㸪ᅗ̺D♧ࡍࡼ࠺㸪ྠ ࡌ⤌࡛ࡢ౪ヨయ࡛ࡣ㸪ᡴ㎸ࡳ㠃ᆺᯟᗏ㠃ࡢ᭤ࡆᣲືࡀࡰ➼ࡋ࠸ࡀ㸪ᆺᯟᗏ㠃ࡢࡦࡧࢀᙉᗘ ࡀᡴ㎸ࡳ㠃ࡼࡾ 20%㧗ࡃ࡞ࡗࡓࠋ ὶືᡴ㎸ࡳ᪉ἲࢆ⏝࠸ࡓࣃࢿࣝ B㸫2 ࡛㸪ࢥࣥࢡࣜ㸫ࢺࡢὶື᪉ྥᑐࡋ࡚ᖹ⾜ษࡾฟࡋࡓ 29 ᭤ࡆᛂຊ(N/mm2) ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 16 14 12 10 8 6 4 2 0 ᆺᯟᗏ㠃ࡦࡧࢀᙉᗘ ᡴ㎸ࡳ㠃ࡦࡧࢀᙉᗘ 1 3 5 7 9 11 13 ౪ヨయNO. 15 17 19 21 23 ᭤ࡆᛂຊ(N/mm2) D%㸫 16 14 12 10 8 6 4 2 0 እഃ౪ヨయ᭤ࡆᙉᗘ ෆഃ౪ヨయ᭤ࡆᙉᗘ ࡦࡧࢀᙉᗘ 1 3 5 7 9 11 13 ౪ヨయNO. 15 17 19 21 23 ᭤ࡆᛂຊ(N/mm2) E%㸫 16 14 12 10 8 6 4 2 0 ᆺᯟᗏ㠃ࡦࡧࢀᙉᗘ ᡴ㎸ࡳ㠃ࡦࡧࢀᙉᗘ 1 3 5 7 9 11 13 15 17 19 21 23 ౪ヨయNO. ᭤ࡆᛂຊ(N/mm2) F&㸫 16 14 12 10 8 6 4 2 0 ᭤ࡆᙉᗘ ࡦࡧࢀᙉᗘ እഃ౪ヨయ᭤ࡆᙉᗘ 1 3 5 7 9 11 13 ౪ヨయNO. 15 17 19 G&㸫 ᅗ̺ ᭤ࡆࡦࡧࢀᙉᗘ᭤ࡆᙉᗘ 30 21 23 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ౪ヨయࡢ 3 Ⅼ᭤ࡆヨ㦂ࡢ⤖ᯝࢆᅗ̺E♧ࡍࠋࡇࡇ࡛ࡣ㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࡽྠࡌ㊥ 㞳ࡢ 4 ᮏࡢ౪ヨయࢆ୍⤌ࡋ㸪4 ᮏࡢ౪ヨయࡢᖹᆒ್࡛♧ࡋࡓࠋᅗ̺E♧ࡍࡼ࠺㸪ࢥࣥ ࢡࣜ㸫ࢺࡢὀࡂཱྀࡽ㞳ࢀࡿ㸪ࡍ࡞ࢃࡕ㸪ࢥࣥࢡࣜ㸫ࢺࡢὶື㊥㞳ࡀ㛗ࡃ࡞ࡿ㸪᭤ࡆᙉ ᗘࡀᖜቑຍࡋࡓࠋᅗ̺ ♧ࡍࡼ࠺㸪᭤ࡆᙉᗘࡀ㧗ࡃ࡞ࡗࡓ౪ヨయ NO.19 ࡛ࡣ㸪⧄⥔ ࡀ◚᩿㠃ᑐࡋ࡚ᆶ┤㓄ྥࡋ࡚࠸ࡿࡢᑐࡋ࡚㸪᭤ࡆᙉᗘࡀపࡃ࡞ࡗࡓ౪ヨయ NO.7 ࡛ࡣ㸪⧄ ⥔ࡀ◚᩿㠃ᑐࡋ࡚ᩳࡵ㓄ྥࡋ࡚࠸ࡓࠋࡇࢀࡼࡾࠊ᭤ࡆᙉᗘᑐࡋ࡚⧄⥔ࡢ㓄ྥࡀࡁࡃᙳ㡪 ࡍࡿ⪃࠼ࡽࢀࡿࠋ ࡞࠾ࠊᅗ̺E♧ࡍࡼ࠺㸪ὀࡂཱྀࡽ㞳ࢀࡿ㊥㞳ࡼࡗ࡚㸪᭤ࡆᙉᗘࡀᖜኚࡋ ࡓࡀ㸪ࡦࡧࢀᙉᗘࡣࡰ୍ᐃ࡛㸪⧄⥔ࡢ㓄ྥࡢᙳ㡪ࡣᑠࡉࡗࡓࠋ ࡉࡽ㸪ᅗ̺E♧ࡍࡼ࠺㸪ὀࡂཱྀࡽྠࡌ㊥㞳࡛ࡢ 4 ᮏࡢ౪ヨయ࡛ࡣ㸪እഃ㸦ᆺᯟ ഃ㠃㏆࠸ഃ㸧ࡢ 2 ᮏࡢ᭤ࡆᙉᗘࡀෆഃࡢ㸰ᮏࡼࡾ㧗ࡃ࡞ࡿഴྥࡀぢࡽࢀࡓࠋ ⛣ືᡴ㎸ࡳ᪉ἲࢆ⏝࠸ࡓࣃࢿࣝ C㸫1 ࡛㸪ࣃࢿࣝࡢ㛗㎶ᆶ┤ษࡾฟࡋࡓ౪ヨయࡢ 3 Ⅼ᭤ࡆ ヨ㦂ࡢ⤖ᯝࢆᅗ̺F♧ࡍࠋヨ㦂య B㸫1 ྠᵝ㸪ࣃࢿࣝෆࡢ⨨ࡀ㏆࠸ 8 ᮏࡢ౪ヨయࢆ 1 ⤌ࡋ㸪ᆺᯟᗏ㠃ഃษḞࡁࡢ࠶ࡿ౪ヨయ 4 ᮏ㸪ᡴ㎸ࡳ㠃ഃษḞࡁࡢ࠶ࡿ౪ヨయ 4 ᮏࡎࡘ㸪 3 ⤌ࢆศࡅ࡚㸪ࡑࢀࡒࢀࡢᖹᆒ್࡛♧ࡋࡓࠋ ྠࡌ⤌࡛ࡢᆺᯟᗏ㠃ഃࡢ᭤ࡆᙉᗘᡴ㎸ࡳ㠃ഃࡢ᭤ࡆᙉᗘࡀከᑡኚࢃࡗࡓࡀ㸪ࡑࡢࡣ㸪ࣃࢿ ࣝෆࡢ⨨ࡼࡽࡎ㸪ࡰྠ୍ࡢᣲື࡞ࡗࡓࠋࡲࡓ㸪ᅗ̺F♧ࡍࡼ࠺㸪⨨ࡀ㏆࠸ ౪ヨయࡢᆺᯟᗏ㠃ࡢࡦࡧࢀᙉᗘࡀᡴ㎸ࡳ㠃ࡼࡾ㧗ࡃ࡞ࡿഴྥࡀぢࡽࢀࡓ㸪ࡇࢀࡣᆺᯟᗏ㠃 ㏆ࡢ⧄⥔ࡀᡴ㎸ࡳ㠃㏆ࡼࡾ࠸࠸㓄ྥࡋ࡚࠸ࡿࡇࡀ౪ヨయࡢ◚᩿㠃ࡽ☜ㄆࡉࢀࡓࠋ ⛣ືᡴ㎸ࡳ᪉ἲࢆ⏝࠸ࡓࣃࢿࣝ C㸫2 ࡛㸪ࣃࢿࣝࡢ㛗㎶ᖹ⾜ษࡾฟࡋࡓ౪ヨయࡢ Ⅼ᭤ࡆ ヨ㦂ࡢ⤖ᯝࢆᅗ̺G♧ࡍࠋࡇࡇ࡛ࡣ㸪ヨ㦂య %㸫 ྠᵝ㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࡽ ྠࡌ㊥㞳ࡢ ᮏࡢ౪ヨయࢆ୍⤌ࡋ㸪 ᮏࡢ౪ヨయࡢᖹᆒ್࡛♧ࡋࡓࠋ ᭤ࡆᙉᗘࡣ࠶ࡿ⛬ᗘࡢࣂࣛࢶ࢟ࡀ࠶ࡗࡓࡀ㸪యⓗࡣࡰྠ୍ࡢ᭤ࡆᣲືࢆ♧ࡉࢀࡓࠋࡲࡓ㸪 ᅗ̺G♧ࡍࡼ࠺㸪እഃ㸦ᆺᯟഃ㠃㏆࠸ഃ㸧౪ヨయ࡛ࡣ㸪᭤ࡆᙉᗘࡀ㧗ࡃ࡞ࡿഴྥࡶ ぢࡽࢀ㸪ቨຠᯝࡶ☜ㄆࡉࢀࡓࠋ ࢥࣥࢡ࣮ࣜࢺࡢὶື᪉ྥ㻌 No.19 No.7 ᅗ̺ ◚᩿㠃ࡢ⧄⥔ࡢ㓄ྥ 31 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 4.4 ࡲࡵ ᮏ❶࡛ᚓࡽࢀࡓ࡞⤖ᯝࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ (1)ྠ୍㓄ྜ⧄⥔ΰධ㔞࠾࠸࡚ࠊ⧄⥔ᚄࡀኴࡃ࡞ࡿࠊ⧄⥔㛗ࡀ▷ࡃ࡞ࡿࠊࣇ್࣮ࣟ ࡀࡁࡃ࡞ࡿഴྥࢆ♧ࡉࢀࡓࠋ (2)ᅽ⦰᭤ࡆ≉ᛶ╔┠ࡋࡓሙྜ㸪W/C ࢆ 18%ࡋ࡚ φ0.66×30mm ࢆ 3%ΰධࡋࡓሙྜࡀ᭱ࡶ ඃࢀ࡚࠸ࡓࡀ㸪ᮦᩱศ㞳ࡍࡿഴྥࡀぢࡽࢀࡓࠋࡑࡇ࡛㸪φ0.66×30mm φ0.1×12mm ࡢ⧄⥔ࢆ 1㸸 2 ࡢྜ࡛ΰྜࡋࡓࡇࢁᮦᩱศ㞳ࢆᢚไ࡛ࡁ㸪140N/mm2 ࡢᅽ⦰ᙉᗘ 15N/ mm2 ௨ୖࡢ᭤ࡆ ᙉᗘࡀᚓࡽࢀࡓࠋ (3)ࡲࡓ㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࢆᆺᯟࡢ∦➃ᅛᐃࡋ࡚ࢥࣥࢡࣜ㸫ࢺࢆᆺᯟෆ࡛ὶືࡉࡏ࡚ ᡴࡕ㎸ࡴ᪉ἲࢆ⏝࠸ࡓሙྜ㸪ὶື᪉ྥᑐࡋ࡚ᖹ⾜ษࡾฟࡋࡓ 100×100×400mm ౪ヨయ࡛ࡣ㸪 ࣃࢿࣝෆࡢ⨨ࡼࡾ᭤ࡆ≉ᛶࡀࡁࡃኚࡍࡿࡇࡀ♧ࡉࢀࡓࠋ≉㸪ࢥࣥࢡࣜ㸫ࢺὀࡂཱྀ ㏆࠸౪ヨయࡢ᭤ࡆᙉᗘࡣὀࡂཱྀࡽ᭱ࡶ㐲࠸⨨ࡢᙉᗘẚ࡚ 1/4 ⛬ᗘ࡞ࡗࡓࠋࡇࢀࡣ౪ヨ యෆࡢ⧄⥔ࡢ㓄ྥࡢᙳ㡪࡛࠶ࡿࡇࡀ◚᩿㠃ࡢ⧄⥔ࡢ≧ἣࡽ᥎ᐹࡉࢀࡓࠋ ୍᪉㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࢆヨ㦂య㍈᪉ྥ㐃⥆ⓗ⛣ືࡉࡏ࡚ᡴࡕ㎸ࡴ᪉ἲࢆ⏝࠸ࡓሙ ྜ㸪౪ヨయࡢษࡾฟࡍ᪉ྥ࠾ࡼࡧ⨨ࡼࡽࡎ᭤ࡆᣲືࡁ࡞ᕪࡣぢࡽࢀ࡞ࡗࡓࠋ 32 ➨ 4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ➨ 4 ❶ࡢཧ⪃ᩥ⊩ [1] JCI つ‽㸸ษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲ JCI-S-0022003 33 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ ➨ 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ 5.1 ࡣࡌࡵ ࣐ࢺࣜࢡࢫ୰ࡢ⧄⥔ࡢศᩓ࣭㓄ྥࡢホ౯ࡑࢀࡀຊᏛᣲືཬࡰࡍᙳ㡪㛵ࡋ࡚ࡣ㸪FRC ࡀ Ⓩሙࡋ࡚௨᮶㸪᪥⮳ࡿࡲ࡛㔜せ࡞ㄢ㢟ࡋ࡚ㄆ㆑ࡉࢀ࡚ࡣ࠸ࡿࡀ㸪ᮍࡔゎỴࡉࢀ࡚࠸࡞࠸ㄢ 㢟࡛࠶ࡿࠋࡑࡢ᭱ࡢ⌮⏤ࡣ㸪ࢥࣥࢡ࣮ࣜࢺ࠶ࡿ࠸ࡣࣔࣝࢱ࣐ࣝࢺࣜࢡࢫ୰ࡢ⧄⥔ࡢศᩓ࣭㓄ྥ ࢆほᐹࡍࡿࡇ⮬యࡀ㞴ࡋ࠸࠺࠼㸪ࡉࡽ⌧≧࡛ࡣᡴ㎸ࡳ⧄⥔ࡢศᩓ࣭㓄ྥࢆไᚚࡍࡿᢏ⾡ ࡀᏑᅾࡋ࡞࠸ࡓࡵ࡛࠶ࡿ⪃࠼ࡽࢀࡿࠋ ࡑࡇ࡛㸪ᮏ❶࡛ࡣ▷⧄⥔ࡢ≉㓄ྥ㛵ࡍࡿᇶ♏ⓗ㈨ᩱࢆᚓࡿࡇࢆ┠ⓗࡋ࡚㸪᭤ࡆ౪ヨయ ࢆᑐ㇟ࡋ࡚㸪ࢥࣥࢡ࣮ࣜࢺࢆ㏱᫂࡞⢓ᛶࢆ᭷ࡍࡿὶయ࡛ࣔࢹࣝࡍࡿࡇ࡛౪ヨయ୰ࡢ⧄⥔ ࡢྍどࢆヨࡳࡓࠋࡲࡓ㸪◳ࡋࡓ㗰⧄⥔ UFC ᭤ࡆ౪ヨయࢆษ᩿ࡋ࡚⧄⥔ࡢ㓄ྥࢆほᐹࡋ㸪ྍ どᐇ㦂ࡢ⤖ᯝẚ㍑ࡋࡓࠋࡉࡽ㸪ᡴ㎸ࡳ᪉ἲࢆኚ࠼ࡿࡇࡼࡾ⧄⥔ࡢ㓄ྥࢆኚ࠼ࡓྜᡂ⧄ ⥔ UFC ౪ヨయࡢ᭤ࡆヨ㦂ࢆ⾜࠸㸪⧄⥔ࡢ㓄ྥࡀ᭤ࡆᣲືཬࡰࡍᙳ㡪ࢆ᳨ウࡋࡓࠋ 5.2 ᐇ㦂ᴫせ 5.2.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ⧄⥔ࡢ㓄ྥࡢほᐹ ࣇࣞࢵࢩࣗࢥࣥࢡ࣮ࣜࢺࡢྍどࣔࢹࣝࡣᶫᮏࡽ>@ࡀᥦࡋࡓ㧗྾Ỉᛶ㧗ศᏊᶞ⬡㸦ࢡ ࣜࣝ㓟㔜ྜయ㒊ศࢼࢺ࣒ࣜ࢘ሷᯫᶫ≀㸧Ỉࢆῧຍࡋ࡚ᚓࡽࢀࡿ↓Ⰽ㏱᫂ࡢ⢓ᛶࢆ᭷ࡍࡿὶయ ࢆ⏝࠸ࡓࠋỈᑐࡍࡿᶞ⬡ࡢῧຍ㔞ࡣ 3g/ࣜࢵࢺࣝࢆ┠Ᏻࡋ࡚㸪0 ᡴࣇ࣮ࣟࡀ 200mm ⛬ᗘ࡞ ࡿࡼ࠺ㄪᩚࡋࡓࠋ࡞࠾㸪ᐇ㝿ࡢ UFC ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ࡣᐦᗘࡸࣞ࢜ࣟࢪ࣮≉ᛶ ࡀ␗࡞ࡿࡓࡵ㸪ࣇ್࣮ࣟࢆ୍⮴ࡉࡏࡓࡋ࡚ࡶྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ᐇ㝿ࡢ UFC ࡢᣲ ືࢆ⌧࡛ࡁࡿࢃࡅ࡛ࡣ࡞࠸ࡀ㸪⧄⥔ࡢ㓄ྥࡢᐃᛶⓗ࡞ᣲືࡣ⌧࡛ࡁࡿ⪃࠼ࡓࠋ ⧄⥔ࡋ࡚ࡣȭ0.6615mm ࡢ PVA ⧄⥔ȭ0.215mm ࡢ㗰⧄⥔ࢆ⏝࠸ࡑࢀࡒࢀᐇ㦂ࢆ⾜ࡗ ࡓࠋ⧄⥔ࡢΰධ㔞ࡀྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢ⧄⥔ࡢ㓄ྥ࠼ࡿᙳ㡪ࢆ☜ㄆࡍࡿࡓࡵ㸪 PVA ⧄⥔ࡢሙྜࡣ㸪ΰධ㔞 0.5%㸪1.0%㸪2.0%㸪3.0%ࡢ 4 ✀㢮ࡋࡓࠋࡲࡓ㗰⧄⥔ࡢሙྜࡣᚋ ㏙ࡍࡿ PVA ⧄⥔ࡢヨ㦂⤖ᯝࢆཧ⪃ࡋ࡚㸪⧄⥔ࡢ㓄ྥࡢほᐹࢆࡋ᫆ࡃࡍࡿࡓࡵ⧄⥔ࡢΰධ㔞ࡣ 0.5%ࡋࡓࠋ ᆺᯟࡣ᭤ࡆ౪ヨయ⏝ᆺᯟࢆᶍᨃࡋࡓ 100120400mm (ᖜ㧗ࡉ㛗ࡉ) ࡢࢡࣜࣝ〇ࡢ ᐜჾࢆ⏝࠸ࡓࠋᡴ㎸ࡳ᪉ἲࡣ㸪ᅗ̺ ♧ࡍࡼ࠺ࢥࣥࢡ࣮ࣜࢺࡢὀࡂཱྀࢆᆺᯟࡢ∦➃ᅛᐃ ࡋࢥࣥࢡ࣮ࣜࢺࢆᆺᯟෆ࡛ὶືࡉࡏ࡚ᡴࡕ㎸ࡴ᪉ἲ㸦௨ୗ㸪ὶືᡴ㎸ࡳࡪ㸧㸪ᆺᯟෆࡢࢥ ࣥࢡ࣮ࣜࢺࡢ㧗ࡉࡀ౪ヨయ㍈᪉ྥ࡛ᆒ➼࡞ࡿࡼ࠺ὀࡂཱྀࢆ౪ヨయ㍈᪉ྥ㐃⥆ⓗ⛣ືࡉ ࡏ࡚ᡴࡕ㎸ࡴ᪉ἲ㸦௨ୗ㸪⛣ືᡴ㎸ࡳࡪ㸧ࡢ 2 ㏻ࡾࡋࡓࠋ ほᐹࡣᡴ㎸ࡳ≧ἣࢆࣅࢹ࣓࢜࢝ࣛࡼࡾᙳࡍࡿࡇࡋࡓࠋ 34 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ 㻔㼍㻕㻌ὶືᡴ㎸䜏 㻔㼎㻕㻌⛣ືᡴ㎸䜏 ᅗ̺ ᡴ㎸ࡳ᪉ἲ 5.2.2 㗰⧄⥔ UFC ౪ヨయࡢษ᩿㠃ࡢほᐹ ๓㡯ࡢྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥࡢᣲືࢆᐇ㝿ࡢ UFC ౪ヨయ࡛☜ㄆ ࡍࡿࡓࡵ㸪㗰⧄⥔ࢆ⏝࠸ࡓ UFC ᭤ࡆ౪ヨయࢆษ᩿ࡋ㸪ษ᩿㠃ࡢ⧄⥔ࡢ≧ἣࢆ☜ㄆࡋࡓࠋ࡞࠾㸪 㗰⧄⥔ UFC ࢆ⏝࠸ࡓࡢࡣ㸪ྜᡂ⧄⥔ࡢሙྜࡣษ᩿㠃࠾࠸࡚⧄⥔ࢆ⫗║࡛☜ㄆࡍࡿࡇࡀᅔ 㞴࡛࠶ࡿࡓࡵ࡛࠶ࡿࠋࡇࡇ࡛⏝࠸ࡓ UFC ࡣ㸪ࣇࣛࣥࢫ࡛ᢏ⾡㛤Ⓨࡉࢀᡃࡀᅜᑟධࡉࢀࡓࡶࡢ ࡛㸪⌧ᅾ T ♫ࡽ౪⤥ࡉࢀ࡚࠸ࡿࣉ࣑ࣞࢵࢡࢫࢱࣉࡢࡶࡢ࡛࠶ࡿࠋᮦᩱ㸪㓄ྜࡣᵝ㏻ࡾ࡛࠶ ࡾ㸪ȭ0.215mm ࡢ㗰⧄⥔ࢆ 2vol%ΰධࡋࡓࡶࡢ࡛࠶ࡿࠋᡴ㎸ࡳࡢ 0 ᡴࣇ࣮ࣟࡣ 275mm ࡛࠶ ࡾ㸪100100400mm ᭤ࡆ౪ヨయὶືᡴ㎸ࡳࢆ⾜ࡗࡓࠋᶆ‽⇕㣴⏕ࢆ⾜ࡗࡓࡢࡕ㸪ษḞࡁࢆ タࡅ㸪ษḞࡁࡣࡾࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪◚᩿ᚋࡢヨ㦂∦ࢆࢥࣥࢡ࣮ࣜࢺ࢝ࢵࢱ࣮࡛ษ᩿ࡋ࡚ษ ᩿㠃ࡢ⧄⥔ࡢ≧ἣࢆほᐹࡋࡓࠋ 5.2.3 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿྜᡂ⧄⥔ UFC ࡢ᭤ࡆᣲື ྍどᐇ㦂ࡢ⤖ᯝࡣḟ⠇࡛㏙ࡿࡀ㸪ᐇ㦂ࡢ⤖ᯝ㸪ᡴ㎸ࡳ᪉ἲࡼࡾ᭤ࡆ౪ヨయෆࡢ⧄⥔ࡢ㓄 ྥࡀ␗࡞ࡿࡇࡀ☜ㄆࡉࢀࡓࠋࡑࡇ࡛ᡴ㎸ࡳ᪉ἲࢆኚ࠼ࡓሙྜ UFC ࡢ᭤ࡆᣲືࡀࡢࡼ࠺ ኚࡍࡿࢆ☜ㄆࡍࡿࡇࡋࡓࠋࡇࡇ࡛⏝࠸ࡓ UFC ࡣ⧄⥔ࡋ࡚ 2 ✀㢮ࡢ PVA ⧄⥔ࢆΰྜࡋ ࡚⏝࠸ࡓࡶࡢ࡛㸪㓄ྜࡣⴭ⪅ࡽࡀྜᡂ⧄⥔ UFC ࡋ࡚㛤Ⓨࢆ㐍ࡵ࡚ࡁࡓࡶࡢ࡛࠶ࡿࠋ࡞࠾㸪ࡇ ࡇ࡛ྜᡂ⧄⥔ UFC ࢆ⏝࠸ࡓࡢࡣྍどᐇ㦂ࡼࡾ⧄⥔ࡢ㓄ྥࡢᐃᛶⓗ࡞ᣲືࡣ⧄⥔ࡢ✀㢮㸪ΰ ධ㔞ࡣ౫Ꮡࡋ࡞࠸ࡇࡀ♧ࡉࢀ㸪ྜᡂ⧄⥔ UFC ࡼࡗ࡚ࡶ୍⯡ⓗ࡞ UFC ࠾ࡅࡿ㓄ྥ᭤ࡆ ᣲືࡢᐃᛶⓗ࡞㛵ಀࡣ☜ㄆ࡛ࡁࡿ⪃࠼ࡓࡓࡵ࡛࠶ࡿࠋUFC ࡢ⏝ᮦᩱ㓄ྜࢆ⾲̺ ♧ ࡍࠋᡴ㎸ࡳࡢ 0 ᡴࣇ࣮ࣟࡣ 204mm ࡛࠶ࡾ㸪ྠ୍ࣂࢵࢳࡢ UFC ࢆ 100100400mm ᭤ࡆ౪ヨ యὶືᡴ㎸ࡳ⛣ືᡴ㎸ࡳࡼࡾᡴ㎸ࢇࡔࠋ㣴⏕ࡣᡴ㎸ࡳᚋ 24 㛫ࡣᡴ㎸ࡳ㠃ࢆࣛࢵࣉ࡛そ ࡗࡓ≧ែ࡛ 20ΥࡢẼ୰㣴⏕ࢆ⾜࠸㸪ࡑࡢᚋ 90ΥࡢẼ㣴⏕ࢆ 48 㛫⾜ࡗࡓࠋ㣴⏕⤊ᚋ㸪ษḞ ࡁࢆタࡅ㸪ᅗ̺2 ♧ࡍࡼ࠺࡞ษḞࡁࡣࡾࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ࠾ࡇ࡞࠸㸪Ⲵ㔜㸫㛤ཱྀኚ᭤⥺ࢆ ィ ࡋࡓࠋ 35 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ ヨ㦂ࡣࠕษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲࠖ>@㸦JCI-S002-2003㸧‽ࡌ࡚⾜ࡗࡓࠋࡓࡔࡋ㸪౪ヨయᩘࡘ࠸࡚ࡣ 1 ᮲௳ࡘࡁ 6 యࡋࡓࠋ ㍕Ⲵࡣ㸪ᡭື࣓࢝ࢽ࢝ࣝࢪࣕࢵ࢟ࢆ⏝ࡋ㸪Ⲵ㔜ࡢ᳨ฟࡣᐜ㔞 100kN ࡢ࣮ࣟࢻࢭࣝ㸪㛤 ཱྀኚࡢ᳨ฟࡣឤᗘ 1/2000mm ࡢࢡࣜࢵࣉࢤ࣮ࢪࢆ⏝࠸ࡓࠋ ⾲̺5.1 ྜᡂ⧄⥔ UFC ࡢ㓄ྜ ༢㔞(kg/m3) W/C Air (%) (%) W C S P Ad F1 F2 18.0 5.0 175 1166 632 229 35 13 26 C:ࢩࣜ࢝ࣄ࣮࣒ࣗࢭ࣓ࣥࢺ㸪 S:6 ྕ⌛◁㸪 P:ࢩࣜ࢝ࣃ࢘ࢲ࣮㸪 Ad㸸㧗ᛶ⬟ῶỈ㸪 F1:PVA ⧄⥔(φ0.66×30mm)㸪 F2:PVA ⧄⥔(φ0.1×12mm) 䝻䞊䝗䝉䝹 㻟㻜 㻝㻜㻜 ౪ヨయ 䜽䝸䝑䝥䝀䞊䝆 㻟㻜㻜 ᅗ̺ ษḞࡁࡣࡾࡢ Ⅼ᭤ࡆヨ㦂 5.3 ᐇ㦂⤖ᯝ 5.3.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ⧄⥔ࡢ㓄ྥࡢほᐹ ᅗ̺ ȭ0.6615mm ࡢ PVA ⧄⥔ࢆ 3%⏝࠸ࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢࣇ࣮ࣟࡢ≧ἣ ࢆ♧ࡍࠋ0 ᡴࣇ࣮ࣟࡣ 210mm ࡞ࡾ㸪 ⧄⥔ࡢศᩓࡶⰋዲ࡛࠶ࡗࡓࠋ ᅗ̺ ࡣȭ0.6615mm ࡢ PVA ⧄⥔ࢆ 0.5%ΰධࡋࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸࡚ ὶືᡴ㎸ࡳࢆ⾜ࡗࡓሙྜࡢᡴ㎸ࡳ㛤ጞࡽࡲ࡛ࡢ≧ἣࢆ♧ࡍࠋᅗ̺Dࡢࡼ࠺ὶືࡍ ࡿࢥࣥࢡ࣮ࣜࢺࡢඛ➃࠾ࡼࡧᆺᯟᗏ㠃㏆࡛ࡣ⧄⥔ࡣỈᖹ࡞ࡗ࡚࠸ࡿࡀ㸪ὀࡂཱྀ㏆࠸ഃࡢ ୖ㒊࡛ࡣ⧄⥔ࡀᩳࡵ❧ࡗ࡚࠸ࡿ≧ἣࡀぢࡽࢀࡿࠋࡉࡽ㸪ᅗ̺Eࡢࡼ࠺ὶࢀࡢඛ➃ࡀὀ ࡂཱྀࡢᑐഃࡢጔᆺᯟ㐩ࡋ㸪ࢥࣥࢡ࣮ࣜࢺࡀ๓᪉ὶࢀ࡞ࡃ࡞ࡿ㸪ࢥࣥࢡ࣮ࣜࢺࡣయⓗ 36 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ ୖ᪉ὶࢀጞࡵ㸪ࡑࡢ⤖ᯝ㸪᭱⤊ⓗࡣᅗ̺Gࡢࡼ࠺⧄⥔ࡣᗏ㠃ࡽᩳࡵ๓᪉ୗฝࡢ ᨺ≀⥺≧㓄ྥࡍࡿࡇࡀ᫂ࡽ࡞ࡗࡓࠋࡇࡢࡼ࠺࡞㓄ྥࡢᣲືࡣᅗ̺ ♧ࡍࡼ࠺㗰⧄ ⥔ࡢሙྜ࡛ࡶྠᵝほᐹࡉࢀࡓࠋ ࡲࡓ㸪ᅗ̺㸪㸪 0.6615mm ࡢ PVA ⧄⥔ࢆ 1%㸪2%㸪࠾ࡼࡧ 3%ΰධࡋࡓྍど ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢὶືᡴ㎸ࡳࡢ≧ἣࢆ♧ࡍࠋ⧄⥔㔞ࡀቑ࠼ࡿࡘࢀ࡚㓄ྥࡢ≧ἣࡀ ぢ㞴ࡃ࡞ࡿࡀ㸪⧄⥔ࡀᨺ≀⥺≧㓄ྥࡍࡿ≧ἣࡣ⧄⥔ΰධ㔞ࡀ 0.5%ࡢሙྜྠᵝ࡛࠶ࡗࡓࠋ ᚑ᮶㸪᭤ࡆ౪ヨయࡢᆺᯟὶືᡴ㎸ࡳࢆ⾜ࡗࡓሙྜࡣ㸪ࢥࣥࢡ࣮ࣜࢺࡣ౪ヨయࡢ㍈᪉ྥὶࢀ㸪 ⧄⥔ࡣỈᖹ᪉ྥ㓄ྥࡍࡿ⪃࠼࡚࠸ࡓࡀ㸪ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸ࡓほᐹࡢ⤖ᯝ㸪ࢥ ࣥࢡ࣮ࣜࢺࡣ౪ヨయ㍈᪉ྥ࡛ࡣ࡞ࡃ㸪ᆺᯟᗏ㠃ࡽୖ᪉ྥࡗ࡚ὶࢀ㸪ࡑࡢ⤖ᯝ㸪⧄⥔ࡣỈᖹ ࡛ࡣ࡞ࡃ㖄┤㏆࠸᪉ྥ㓄ྥࡍࡿࡇࡀ᫂ࡽ࡞ࡗࡓࠋ௨ୖࡢࡇࡼࡾ㸪⮬ᕫሸᆺࡢ UFC ࡛ࡣ㸪ࢥࣥࢡ࣮ࣜࢺࡀὶືࡍࡿࡇ࡛㸪ࡑࡢ᪉ྥ⧄⥔ࡀ㓄ྥࡍࡿ≉ᛶࡀ࠶ࡾ㸪ࡇࡢࡓࡵ౪ヨయ ୰ࡢ⧄⥔ࡢ㓄ྥࡣ⧄⥔ࡢ✀㢮ࡸ⧄⥔㔞࠸ࡗࡓࣃ࣓࣮ࣛࢱࡼࡾࡴࡋࢁ౪ヨయ୰࡛ࡢࢥࣥࢡ࣮ࣜ ࢺࡢὶࢀ᪉┤᥋ⓗ౫Ꮡࡍࡿࡶࡢ⪃࠼ࡽࢀࡿࠋ ୍᪉㸪⛣ືᡴ㎸ࡳࢆ⾜ࡗࡓሙྜࡣᅗ̺ ♧ࡍࡼ࠺⧄⥔ࡣࣛࣥࢲ࣒㓄ྥࡍࡿ⤖ᯝ࡞ ࡗࡓࠋ ᅗ̺5.3 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢࣇ࣮ࣟ ⧄⥔ࡢ㓄ྥ 37 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ (a) ὶࢀࡢඛ➃ࡀጔᆺᯟ฿㐩 (b) ᡴ㎸ࡳ㧗ࡉ 50% (c) ᡴ㎸ࡳ㧗ࡉ 80% (d) ᡴ㎸ࡳ ᅗ̺ ὶືᡴ㎸ࡳࡢሙྜࡢ 39$ ⧄⥔㸦㸧ࡢ㓄ྥ ᅗ̺ ὶືᡴ㎸ࡳࡢሙྜࡢ㗰⧄⥔㸦㸧ࡢ㓄ྥ 38 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ ᅗ㸫 ΰධ⋡ ࡢሙྜࡢ㓄ྥ ᅗ㸫 ΰධ⋡ ࡢሙྜࡢ⧄⥔ࡢ㓄ྥ ᅗ㸫 ΰධ⋡ ࡢ⧄⥔ࡢ㓄ྥ ᅗ㸫 ⛣ືᡴ㎸ࡳࡢሙྜࡢ 39$ ⧄⥔ࡢ㓄ྥ 5.3.2 㗰⧄⥔ UFC ౪ヨయࡢษ᩿㠃ࡢほᐹ ᅗ㸫 3 Ⅼ᭤ࡆヨ㦂ᚋࡢ◚᩿㠃ࡢ≧ἣࢆ♧ࡍࠋᆺᯟᗏ㠃㏆࡛ࡣ⧄⥔ࡣ◚᩿㠃ᑐࡋ࡚ ᆶ┤㸦౪ヨయ㍈᪉ྥ㸧㓄ྥࡋ࡚࠸ࡿࡢᑐࡋ࡚㸪᩿㠃ࡢ୰ኸ㏆࡛ࡣ⧄⥔ࡣ◚᩿㠃ᑐࡋ࡚ᩳ ࡵ᪉ྥ㓄ྥࡋ࡚࠸ࡿࠋࡉࡽᡴ㎸ࡳ㠃㏆࠸㒊ศ࡛ࡣ⧄⥔ࡀᑡ࡞ࡃ࡞ࡗ࡚࠸ࡿࠋ ࡲࡓ㸪ᅗ㸫 ࡣ౪ヨయ㍈᪉ྥᆶ┤ษ᩿ࡋࡓษ᩿㠃ࢆ♧ࡍࠋᅗ୰ࡢⓑ࠸Ⅼࡀ㗰⧄⥔ࡢ 39 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ ษ᩿㠃࡛࠶ࡾ㸪ᆺᯟᗏ㠃㏆ࡣⓑ࠸Ⅼࡢ㠃✚ࡀᑠࡉ࠸㸪ࡍ࡞ࢃࡕ⧄⥔ࡣ⧄⥔㍈ᑐࡋ࡚ᆶ┤ษ ᩿ࡉࢀ࡚࠸ࡿࡢᑐࡋ࡚㸪᩿㠃ࡢୖ㒊࡛ࡣ⧄⥔ࡀᑡ࡞ࡃ㸪⧄⥔ࡢษ᩿㠃ࡀࡁࡃ࡞ࡗ࡚࠾ࡾ㸪ษ ᩿㠃ᑐࡋ࡚⧄⥔ࡀᩳࡵ㓄ྥࡋ࡚࠸ࡿ≧ἣࢆ♧ࡋ࡚࠸ࡿ⪃࠼ࡽࢀࡿࠋ ᅗ㸫 ࡣ౪ヨయࢆỈᖹ᪉ྥษ᩿ࡋࡓ᩿㠃ࡢ≧ἣࢆ♧ࡍࠋᅗ㸫E ࡣᗏ㠃ࡽ 15mm ࡢ㧗ࡉࡢษ᩿㠃࡛࠶ࡾ㸪⧄⥔ࡀᑡ࡞ࡃ㸪⧄⥔ࡢษ᩿㠃ࡀ㛗ࡃ࡞ࡗ࡚࠸ࡿࡶࡢࡀほᐹࡉࢀ㸪ࡇࡢ ⨨࡛ࡣ⧄⥔ࡣᆺᯟᗏ㠃ᑐࡋ࡚ᖹ⾜㓄ྥࡋ࡚࠸ࡿࡇࢆ♧ࡋ࡚࠸ࡿࠋࡲࡓ㸪ᅗ㸫D ࡣ᩿ 㠃㧗ࡢ୰ኸ⨨࡛Ỉᖹษ᩿ࡋࡓ᩿㠃࡛࠶ࡾ㸪ᅗ㸫 ࡢᆶ┤᩿㠃ẚ㍑ࡋ࡚ྠ⛬ᗘ௨ୖࡢᐦ ᗘ࡛⧄⥔ࡀᏑᅾࡋ㸪ࡋࡶษ᩿㠃ࡢ᩿㠃✚ࡀᑠࡉ࠸⧄⥔ࡀከࡃほᐹ࡛ࡁ㸪ྍどࣔࢹࣝࢥࣥࢡࣜ ࣮ࢺ࡛ほᐹࡉࢀࡓࡼ࠺⧄⥔ࡀ౪ヨయෆ࡛ᩳࡵ❧ࡗࡓ᪉ྥ㓄ྥࡋ࡚࠸ࡿࡇࢆ♧ࡋ࡚࠸ࡿ ⪃࠼ࡽࢀࡿࠋ௨ୖࡢࡇࡼࡾ㸪ᐇ㝿ࡢ㗰⧄⥔ UFC ౪ヨయෆࡢ⧄⥔ࡢ㓄ྥࡢ≧ἣࡣ㸪ྍどࣔ ࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥ≧ἣᐃᛶⓗ୍⮴ࡋ࡚࠸ࡿ⪃࠼ࡽࢀࡿࠋ ᆺᯟ㠃ἢࡗࡓ᪉ྥ㓄ྥ ᩳࡵୖ᪉ྥ㓄ྥ ⧄⥔ࡀᑡ࡞࠸ ᆺᯟᗏ㠃 ᡴ㎸ࡳ ษḞࡁ ᅗ㸫 㗰⧄⥔ 8)& ࡢ◚᩿㠃 40 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ ᡴ㎸ࡳ㠃 ᡴ㎸ࡳ ⧄⥔ࡢษ᩿㠃✚ ⧄⥔ࡢษ᩿㠃✚ ᑠ ᆺᯟᗏ㠃 ᅗ㸫 㗰⧄⥔ 8)& ࡢᆶ┤᩿㠃ࡢ⧄⥔ࡢ㓄ྥ ⧄⥔ᩘከ㸪ษ᩿㠃✚ᑠ Ѝ 㖄┤᪉ྥ㓄ྥ ᡴ ㎸ 130 50 ࡳ 50 (a) 㧗ࡉ୰ኸࡢỈᖹ᩿㠃࠾ࡅࡿ⧄⥔ࡢ㓄ྥ 15 ⧄⥔ᩘᑠ㸪ษ᩿㠃✚ Ѝ ᆺᯟᗏ㠃ᖹ⾜㓄ྥ (b)ᆺᯟᗏ㠃㏆ࡢỈᖹ᩿㠃࠾ࡅࡿ⧄⥔ࡢ㓄ྥ ᅗ㸫 㗰⧄⥔ 8)& ࡢỈᖹ᩿㠃࠾ࡅࡿ⧄⥔ࡢ㓄ྥ 41 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ 5.3.3 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿྜᡂ⧄⥔ UFC ࡢ᭤ࡆᣲື ୖ㏙ࡢ㏻ࡾ㸪ὶືᡴ㎸ࡳࡢሙྜࡣ⧄⥔ࡣ᭤ࡆ౪ヨయෆ࡛ᆺᯟᗏ㠃ᑐࡋ࡚ᩳࡵୖྥࡁ㓄 ྥࡋ㸪⛣ືᡴ㎸ࡳࡢሙྜࡣ⧄⥔ࡣࣛࣥࢲ࣒㓄ྥࡍࡿഴྥࡀ࠶ࡿࡇࡀ᫂ࡽ࡞ࡗࡓࠋࡑࡇ ࡛㸪ὶືᡴ㎸ࡳ⛣ືᡴ㎸ࡳ࡛〇సࡋࡓ᭤ࡆ౪ヨయࡘ࠸࡚ษࡾḞࡁࡣࡾࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜ ࠸㸪ᡴ㎸ࡳ᪉ἲ㸪ࡍ࡞ࢃࡕ⧄⥔ࡢ㓄ྥࡀ᭤ࡆᣲືᑐࡋ࡚ࡢࡼ࠺࡞ᙳ㡪ࢆཬࡰࡍࢆ PVA ⧄ ⥔ࢆ⏝࠸ࡓ UFC ࢆᑐ㇟᳨ウࡋࡓࠋᅗ㸫 ࡣィ ࡉࢀࡓⲴ㔜-㛤ཱྀኚ᭤⥺ࢆ♧ࡍࠋᅗ୰㸪 ⣽⥺ࡣྛ౪ヨయࡢィ ࢹ࣮ࢱ࡛࠶ࡾ㸪ኴ⥺ࡣᖹᆒ᭤⥺࡛࠶ࡿࠋࡦࡧࢀⓎ⏕Ⲵ㔜ࡣᡴ㎸ࡳ᪉ἲ ࢃࡽࡎ㸪ࢇᕪࡣぢࡽࢀ࡞ࡗࡓࠋࡋࡋ㸪ࡑࡢᚋࡢⲴ㔜ࡢቑຍࡣ⛣ືᡴ㎸ࡳࡢ᪉ࡀ㧗 ࡃ㸪᭱Ⲵ㔜ࡣ⛣ືᡴ㎸ࡳࡢ᪉ࡀὶືᡴ㎸ࡳࡼࡾ 2 ⛬ᗘ㧗ࡃ࡞ࡗࡓࠋࡇࡢࡼ࠺࡞ᕪࡀ⏕ࡌࡓࡢ ࡣ㸪⧄⥔ࡢ㓄ྥࡼࡿࡶࡢ⪃࠼ࡽࢀ㸪ὶືᡴ㎸ࡳࡢሙྜࡣᅗ㸫 ࡢࡼ࠺◚᩿㠃ᑐࡋ ࡚⧄⥔ࡀᩳࡵ㸪࠶ࡿ࠸ࡣᖹ⾜㓄ྥࡍࡿ⧄⥔ࡀከࡃ࡞ࡿࡓࡵᯫᶫຊࡀ༑ศⓎࡉࢀࡎ㸪⛣ື ᡴ㎸ࡳࡼࡾ⧄⥔ࡀࣛࣥࢲ࣒㓄ྥࡍࡿሙྜࡼࡾᯫᶫຊࡀపୗࡋࡓࡶࡢ⪃࠼ࡽࢀࡿࠋ࡞࠾㸪ࡇ 25 25 20 20 Ⲵ㔜 (kN) Ⲵ㔜 (kN) ࡢ UFC ࡢᅽ⦰ᙉᗘࡣ 150N/mm2 ࡛࠶ࡗࡓࠋ 15 10 ⛣ືᡴ㎸ࡳ ὶືᡴ㎸ࡳ 5 0 0.1 0.2 0.3 0.4 㛤ཱྀኚ (mm) ⛣ືᡴ㎸ࡳ ὶືᡴ㎸ࡳ 15 10 5 0.5 0 1 2 3 㛤ཱྀኚ (mm) 4 (a)ึᮇ㒊ศ (b)య ᅗ㸫 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿሙྜࡢ 39$ ⧄⥔ 8)& ࡢⲴ㔜㸫㛤ཱྀኚ᭤⥺ 42 5 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ 5.4 ࡲࡵ ᮏ❶࡛ᚓࡽࢀࡓ࡞⤖ᯝࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ (1) 㧗྾Ỉᛶ㧗ศᏊᶞ⬡ࢆ⏝࠸ࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡾ㸪᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄 ྥ≧ἣࢆほᐹࡋࡓࠋࡑࡢ⤖ᯝ㸪౪ヨయࡢ∦➃ࡽࢥࣥࢡ࣮ࣜࢺࢆὶࡋ㎸ࡴ᪉ἲࡢሙྜ㸪⧄⥔ࡣ౪ ヨయࡢ㍈᪉ྥࡣ㓄ྥࡏࡎ㸪ᩳࡵୖ᪉㓄ྥࡍࡿࡇࡀ♧ࡉࢀࡓࠋ (2) 㗰⧄⥔ࢆ⏝࠸ࡓ UFC ᭤ࡆ౪ヨయࢆษ᩿ࡋ࡚⧄⥔ࡢ㓄ྥ≧ἣࢆほᐹࡋࡓ⤖ᯝ㸪ྍどࣔࢹ ࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ㓄ྥࡢᛶ≧ᐃᛶⓗ୍⮴ࡋ࡚࠸ࡿࡇࡀ♧ࡉࢀࡓࠋ (3) ᡴ㎸ࡳ᪉ἲࢆኚ࠼ࡿࡇ࡛౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࡀ␗࡞ࡿษḞࡁࡣࡾࡢ᭤ࡆヨ㦂ࢆ⾜ࡗ ࡓ⤖ᯝ㸪ᡴ㎸ࡳ᪉ἲ㸦⧄⥔ࡢ㓄ྥ㸧ࡢ㐪࠸ࡼࡾ᭱Ⲵ㔜ࡀ 2 ⛬ᗘኚࡍࡿࡇࡀ♧ࡉࢀࡓࠋ 43 5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ ➨ 5 ❶ࡢཧ⪃ᩥ⊩ [1] ᶫᮏぶ㸪ᖹ⚽ᖾ㸪㎷ᖾ㸪⏣ᮧ┿㸸2 ㍈ᙉไ⦎ࡾ࣑࢟ࢧෆࡢࢥࣥࢡ࣮ࣜࢺࡢ⦎ΰࡐᶵᵓ ࡢྍど㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥሗ࿌㞟㸪Vol.15㸪No.1㸪pp.1037-1042㸪1993 [2] JCI つ‽㸸ษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲ JCI-S-0022003 44 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 6.1㸬ࡣࡌࡵ ▷⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ୍ࡘࡢ≉ᚩࡣࡦࡧࢀⓎ⏕ᚋࡢ⧄⥔ࡼࡿᯫᶫຠᯝ࠶ࡾ㸪ࡇࡢ ᯫᶫຠᯝᑐࡋ࡚⧄⥔ࡢ㓄ྥ࣭ศᩓࡀࡁࡃᙳ㡪ࡍࡿ>@ࠋ᪤ ࡢ◊✲ࡼࢀࡤ㸪◳ᚋࡢࢥ ࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ㓄ྥ࣭ศᩓᙳ㡪ࡍࡿせᅉࡋ࡚㸪⦎ࡾΰࡐ┤ᚋࡢࣇࣞࢵࢩࣗᛶ≧ࠊᡴ㎸ ࡳ᪉ἲ㸪౪ヨయࡢᙧ≧ᑍἲࠊࢥࣥࢡ࣮ࣜࢺࡢὶື≉ᛶᆺᯟࡏࡁᯈຠᯝ࡞ࡀᣲࡆࡽࢀ>@㸪 ≉ࢥࣥࢡ࣮ࣜࢺࡢὶື≉ᛶᆺᯟࡢࡏࡁᯈຠᯝࡀ⧄⥔ࡢ㓄ྥ࣭ศᩓࡁࡃᙳ㡪ࡍࡿࡉࢀ ࡚࠸ࡿ>@ࠋ ᮏ❶࡛ࡣᙧ≧ᑍἲࡀ␗࡞ࡿ UFC ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࢆᢕᥱࡍࡿࡇࢆ┠ⓗࡋ࡚ࠊ➨ 5 ❶ ࠾࠸࡚ᥦࡋࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓ>@ࠋࡲࡓࠊ ◳ࡋࡓ UFC ౪ヨయࢆษ᩿ࡋࠊษ᩿㠃ࡢ⏬ീゎᯒࡼࡾ⧄⥔ࡢ㓄ྥࢆホ౯ࡋࠊྍどᐇ㦂ࡢ⤖ ᯝẚ㍑ࡋࡓࠋ 6.2. ᐇ㦂ᴫせ 6.2.1 ⏝ᮦᩱ࠾ࡼࡧ UFC ࡢ㓄ྜ ⾲̺ ⏝ᮦᩱ࠾ࡼࡧ UFC ࡢ㓄ྜࢆ♧ࡍࠋᮏᐇ㦂࡛⏝ࡋࡓ UFC ࡣᕷ㈍ࡢࣉ࣑ࣞࢵࢡࢫ ࢱࣉࡢࡶࡢ࡛࠶ࡾ㸪⤖ྜᮦࡽᡂࡿࣉ࣑ࣞࢵࢡࢫᮦ㸪⣽㦵ᮦ㸪ῶỈ࠾ࡼࡧ 2vol%ࡢȭ0.2 15mm ࡢ㗰⧄⥔࡛ᵓᡂࡉ࡚࠸ࡿࠋ⦎ΰࡐࡣ㸪ᐜ㔞 120L ࡢ 2 ㍈ᙉไ⦎ࡾ࣑࢟ࢧࢆ⏝ࡋࡓࠋ 6.2.2 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ ࣇࣞࢵࢩࣗࢥࣥࢡ࣮ࣜࢺࡢྍどࣔࢹࣝࡣᶫᮏࡽࡀᥦࡋࡓ㧗྾Ỉᛶ㧗ศᏊᶞ⬡㸦ࢡࣜ ࣝ㓟㔜ྜయ㒊ศࢼࢺ࣒ࣜ࢘ሷᯫᶫ≀㸧Ỉࢆῧຍࡋ࡚ᚓࡽࢀࡿ↓Ⰽ㏱᫂ࡢ⢓ᛶࢆ᭷ࡍࡿὶయ㸦௨ ୗ㸪SAP㸫ࣔࢹࣝࡪ㸧࠾ࡼࡧỈ⁐ᛶࢭ࣮ࣝࣟࢫ࢚࣮ࢸࣝ㸦௨ୗࠊࢭ࣮ࣝࣟࢫ㸫ࣔࢹࣝࡪ㸧 ࢆ⏝࠸ࡓ>@ࠋSAP̺ࣔࢹࣝࡢỈᑐࡍࡿᶞ⬡ࡢῧຍ㔞ࡣ3g/ࣜࢵࢺࣝࢆ┠Ᏻࡋ࡚㸪0ᡴࣇ࣮ࣟ ࡀ200mm⛬ᗘ࡞ࡿࡼ࠺ㄪᩚࡋࡓࠋࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝࡘ࠸࡚ࡣ2.25%ࡢ⁐ᾮࢆ⏝࠸ࠊ0ᡴࣇ ࣮ࣟࡀ280mm⛬ᗘ࡛࠶ࡗࡓࠋ ᅗ̺D୧ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡽࢡࣜࣝᯈࢆᘬᢤࡃヨ㦂⨨ࢆ♧ࡍࠋࢡࣜࣝᯈࢆ ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ୰㛗ࡉ10cmࡲ࡛ᥨධࡋࠊ⣒ࡢᑐഃᯈࡢ㔜ࡉࡢ2.5ಸࡢ㔜ࡉࢆ⮬⏤ⴠୗ ࡉࡏࠊ୧ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࠾࠸࡚ࠊᯈࢆ5cm࠾ࡼࡧ㸦10cm㸧ࢆᘬᢤ࠸ࡓࡢ㛫ࢆィ ⾲̺8)& ࡢ㓄ྜ ༢㔞 (kg/m3) Ỉ ࣉࣞࢵ࣑ࢡࢫ A ⣽㦵ᮦ ῶỈ 㗰⧄⥔ 155 1322 932 25 157 45 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝ ࢡࣜࣝᯈ㻌 㔜ࡾ SAP̺ࣔࢹࣝ 㻡㼏㼙㻌 㻡㼏㼙㻌 ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ㻌 (a) ヨ㦂⨨ 㻔㼎㻕㻌 ヨ㦂⤖ᯝ㻌 ᅗ̺ ୧ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢᯈࢆᘬᢤࡃヨ㦂 ࢡ ࣜ ࣝ ᯈ (a) SAP-ࣔࢹࣝ (b) ࢭ࣮ࣝࣟࢫ㻙ࣔࢹࣝ㻌 ᅗ̺ 6DSࣔࢹࣝࢭ࣮ࣝࣟࢫࣔࢹࣝࡢ⢓ᛶ ࡋࡓࠋࡑࡢ⤖ᯝࠊᅗ̺E♧ࡍࡼ࠺ࠊᯈࢆᘬᢤ࠸ࡓࡢ㛫ࡣࠊSAP̺ࣔࢹࣝࢆ ⏝࠸ࡓሙྜࡢ1⛊ᑐࡋ࡚ࠊࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝࡣ37⛊࡞ࡗࡓࠋࡲࡓࠊᅗ̺ࢡࣜࣝᯈࢆ ୧ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡽᘬᢤ࠸ࡓࡢ┿ࢆ♧ࡍࠋ௨ୖࡢࡇࡼࡾࠊࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝࡣ ࢡࣜࣝᯈ╔ࡋSAP̺ࣔࢹࣝࡼࡾ㧗࠸⢓╔ᛶࢆ᭷ࡋ࡚࠸ࡿࠋ 46 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 6.2.3 ౪ヨయ ᅗ ᮏᐇ㦂࡛⏝࠸ࡓ UFC ヨ㦂యࡢᙧ≧ᑍἲࢆ♧ࡍ㸬ヨ㦂య A B ࡣࠊྠࡌᖜ㧗ࡉ࡛ࠊ 㛗ࡉࢆኚࡉࡏࡓࡶࡢ࡛࠶ࡿࠋヨ㦂య B C ࡣྠࡌᖜ㛗ࡉ࡛ࠊ㧗ࡉࢆኚࡋࡓࡶࡢ࡛࠶ࡿࠋ ヨ㦂య D ࡣᖜࡢᗈ࠸ࡶࡢ࡛࠶ࡿࠋヨ㦂య AࠊBࠊCࠊD ࡘ࠸࡚ࡣࡍ࡚ᆺᯟࡢ∦➃ࡽࢥࣥࢡ ࣮ࣜࢺࢆᡴ㎸ࢇࡔࠋヨ㦂య E ࡣ┤ᚄ 1200mm㸪ཌࡉ 50mm ࡢᙧࣃࢿ࡛ࣝ࠶ࡾࠊᙧࣃࢿࣝࡢ୰ ᚰࡽࢥࣥࢡ࣮ࣜࢺࢆ㐃⥆ⓗᡴ㎸ࢇࡔ ࡲࡓࠊUFC ヨ㦂యྠ୍ᑍἲࡢࢡࣜࣝᆺᯟࡶస〇ࡋࠊ✀㢮ࡢྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ ࢆ⏝࠸࡚ྍどᐇ㦂ࢆ⾜ࡗࡓࠋほᐹࡣᡴ㎸ࡳ≧ἣࢆࣅࢹ࣓࢜࢝ࣛࡼࡾᙳࡍࡿࡇࡋࡓࠋ 6.2.4 ⏬ീゎᯒࡼࡾ⧄⥔ࡢ㓄ྥ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥẚ㍑ࡍࡿࡓࡵࠊUFC ヨ㦂యࢆษ᩿ࡋࠊ ษ᩿㠃ࡢ⧄⥔ࡢ≧ἣࢆ☜ㄆࡋࡓࠋᅗ̺ ࡣྛヨ㦂యࡢษ᩿⨨ࢆ♧ࡍࠋ ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ㓄ྥ≧ែࢆほᐹࡍࡿࡣࢥࣥࣆ࣮ࣗࢱ᩿ᒙᙳἲ㹙㹛 ࠊX ⥺ἲ㹙㹛ࠊ 㟁Ẽᢠ⋡ἲ㹙㹛࠾ࡼࡧษ᩿㠃ࡢ⏬ീゎᯒ᪉ἲ㹙㹛࡞ࡀᏑᅾࡋ࡚࠸ࡿࠋᮏ◊✲࡛ࡣࠊẚ㍑ ⓗ⡆౽࡞ษ᩿㠃ࡢ⏬ീゎᯒ᪉ἲࢆ⏝࠸ࡿࡇࡋࡓ>@ࠋࢹࢪࢱ࣐ࣝࢡࣟࢫࢥ࣮ࣉࡼࡾ ษ᩿㠃ࢆ 20 ಸ⋡࡛ᙳࡋࠊᙳࡋࡓ⏬ീࢆゎᯒࢯࣇࢺ ImageJ>@ࢆ⏝࠸࡚⏬ീゎᯒࢆ⾜ࡗࡓࠋ ゎᯒࡼࡾࠊ⧄⥔ࡢ㓄ྥゅᗘ(θ)ࠊ ษ᩿㠃ෆࡢ⥲⧄⥔ᮏᩘ(NT)ࠊ1cm2 ࠶ࡓࡾࡢ⧄⥔ᮏᩘ(Nua)⧄ ⥔ࡢ᪉ྥゅᗘ(φ)ࢆồࡵࡓࠋ⧄⥔ࡢ㓄ྥゅᗘࡘ࡚ࡣࠊ⧄⥔ࡀษ᩿㠃ᑐࡋ࡚ᆶ┤㓄ྥࡋ࡚࠸ ࡿሙྜ 90r࡞ࡾࠊ⧄⥔ࡀษ᩿㠃ᑐࡋ࡚ᖹ⾜㓄ྥࡋ࡚࠸ࡿሙྜ 0r࡞ࡿࠋࡲࡓࠊ⧄⥔ࡢ᪉ 90°㻌 ὶື᪉ྥ㻌 ഃ㠃㻔ᆺᯟᗏ㠃㻕㻌 ྥゅᗘࡣᅗ㸫 ♧ࡍࡼ࠺ࠊ⧄⥔ษ᩿㠃ࡢ㛗ᚄ᪉ྥ࡛࠶ࡿࠋ 120°㻌 60° ᅗ㸫 ⧄⥔ࡢ᪉ྥゅᗘ 47 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 100 AL AT 100 B L1 200 400 B 100 L2 B L3 100 100 100 350 350 C 1000 L 100 300 1000 Dh2̺3 100㻌 400 150 100 350 350 1000 E30° 200 E0° 50㻌 E90°㻌 50 E60°㻌 1200㻌 ᅗ̺ 8)& ヨ㦂యࡢᙧ≧ᑍἲษ᩿⨨ 48 (mm) ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 6.3. ᐇ㦂⤖ᯝ 6.3.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥ ᅗ̺ ✀㢮ࡢྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸ࡓ 100100400mm ᶆ‽᭤ࡆ౪ヨయࡢ ┿ࢆ♧ࡍࠋᆺᯟࡢ∦➃ࡽࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࡴࠊ୧ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡣྠᵝ࡞ഴ ྥ࡞ࡾࠊ⧄⥔ࡀᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄ྥࡋࡓࠋࡓࡔࡋࠊᆺᯟᗏ㠃㏆࡛ࡣࠊ⧄⥔ࡀỈᖹ 㓄ྥࡍࡿഴྥࡀ࠶ࡾࠊࢭ࣮ࣝࣟࢫ-ࣔࢹࣝࡢ࠺ࡀ㢧ⴭ࡞ࡗࡓࠋࡇࢀࡣࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ ᆺᯟࡢ⢓╔ᛶ࠾ࡼࡧ⢓ᛶࡢ㐪࠸ࡼࡿࡶࡢ⪃࠼ࡽࢀࡿࠋ 100 400㻌 (a) SAP㸫ࣔࢹࣝ ࢹ 100 400㻌 (mm)㻌 (b) ࢭ࣮ࣝࣟࢫ㸫ࣔࢹࣝ ᅗ㸫PP ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ ࡇࡢࡼ࠺࡞⧄⥔ࡢ㓄ྥࡢ࣓࢝ࢽࢬ࣒ࢆゎ᫂ࡍࡿࡓࡵࠊ௨ୗࡢᐇ㦂ࢆᐇࡋࡓࠋᅗ̺㸦D㸧 ♧ࡍࡼ࠺ࠊᡴ㎸ࡳ୰ࡢࢥࣥࢡ࣮ࣜࢺࡢὶື≉ᛶࢆᢕᥱࡍࡿࡓࡵࠊ3 Ⰽࡢ⧄⥔ࢆ⏝࠸ࡓ SAP̺ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆస〇ࡋࡓࠋ ᅗ㸫 ࡣ 3 Ⰽࡢ⧄⥔ࢆ⏝࠸ࡓ SAP̺ࣔࢹࣝࢆ⏝࠸࡚ᡴ㎸ࡳ㛤ጞࡽࡲ࡛ࡢ≧ἣࢆ♧ ࡍࠋᅗ㸫Eࡢࡼ࠺ࠊ᭱ึࡢ 1 Ⰽ┠ࡢࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࢇࡔࠊ⧄⥔ࡣᆺᯟᗏ㠃 ᑐࡋ࡚ࡰỈᖹ࡞ࡗ࡚࠸ࡿࡀࠊᅗ㸫F♧ࡍࡼ࠺ࠊ2 Ⰽ┠ࡢࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ ࡴࠊඛᡴࡕ㎸ࢇࡔࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢୖ㠃ὶࢀࡿ࡛ࡣ࡞ࡃࠊඛᡴࡕ㎸ࢇࡔࣔࢹࣝࢥࣥ ࢡ࣮ࣜࢺࢆᢲฟࡍࡼ࠺ࠊᩳࡵୖ᪉ὶືࡍࡿᵝᏊࢆほᐹࡉࢀࡓࠋࡉࡽࠊᅗ㸫Gࡢࡼ࠺ 3 Ⰽ┠ࡢࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࡴࠊ౪ヨయ୰ࡢ⧄⥔ࡀయⓗᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄 ྥࡋࡓࠋ ࡇࡢࡼ࠺࡞ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢὶືᣲືࢆᅗ ࡲࡵࡓࠋᅗ୰ࠊ␒ྕࡁ▮༳ࡣᡴ㎸ ࡳ୰ࡢࢥࣥࢡ࣮ࣜࢺࡢ๓ᚋ㡰␒ࢆ♧ࡍࠋࡘࡲࡾࠊղࡣձࡢḟᡴ㎸ࢇࡔࠋࡲࡓࠊࡇࡢࡼ࠺࡞㓄ྥ 49 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ࡢᣲືࡣᅗࠊ ♧ࡍࡼ࠺ࠊࢭ࣮ࣝࣟࢫ㸫ࣔࢹࣝ࠾ࡼࡧ UFC ࡢሙྜࡶྠᵝほᐹࡉࢀ ࡓࠋࡓࡔࡋࠊࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝ࠾ࡼࡧ UFC ࡣᆺᯟഃ㠃ࡢ╔ᛶࡀ㧗࠸ࡓࡵࠊඛᡴ㎸ࢇࡔ ࢥࣥࢡ࣮ࣜࢺࡣᡴ㎸ࡳ⨨ࡽᆺᯟഃ㠃ᑡ㔞╔ࡋ࡚࠸ࡿࠋ࡞࠾ࠊࢥࣥࢡ࣮ࣜࢺࡢὶື≉ᛶ ࢆほᐹࡍࡿࡓࡵࠊࢭ࣮ࣝࣟࢫ㸫ࣔࢹࣝࡣ SAP̺ࣔࢹࣝྠᵝⰍࡅ⧄⥔ࢆ⏝࠸ࡓࠋUFC ࡣྠ ⢏ᚄ࡛Ⰽࡢ␗࡞ࡿ⣽㦵ᮦ㸦ᗫ⎰㦵ᮦ㸧ࢆ⏝࠸ࡓࠋ (a) Ⰽࡅ⧄⥔ࢆ⏝࠸ࡓ SAP̺ࣔࢹࣝ (b) 1 Ⰽ┠ࡢᡴ㎸ࡳ (c) 2 Ⰽ┠䛾ᡴ㎸䜏 100 (mm)㻌 400 (d) 3 Ⰽ┠ࡢᡴ㎸ࡳ ᅗ㸫Ⰽࡅ⧄⥔ࢆ⏝࠸ࡓ 6$3PRGHO 䐢 䐦 䐲 䐡 䐠 䐟 䐣 ᅗ㸫 6$3̺ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢὶືᣲື 50 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 100 400㻌 (mm) ᅗ㸫Ⰽࡅ⧄⥔ࢆ⏝࠸ࡓࢭ࣮ࣝࣟࢫ㸫ࣔࢹࣝ ⥔ࢆ⏝࠸ࡓࢭ 100㻌 400㻌 (mm) ᅗ㸫✀㢮ࡢ㦵ᮦࢆ⏝࠸ࡓ 8)& ᅗ̺ ✀㢮ࡢྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸ࡓ 100×100×1000 mm ヨ㦂యࡢ┿ࢆ♧ ࡍࠋ100×100×400 mm ᶆ‽᭤ࡆヨ㦂య࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥྠᵝ౪ヨయ㛗ࡉ᪉ྥయⓗ ᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄ྥࡋࡓࠋ ヨ㦂యࡢ㧗ࡉࡀ⧄⥔ࡢ㓄ྥࡢࡼ࠺࡞ᙳ㡪ࢆ࠼ࡿࢆ᳨ウࡍࡿࡓࡵࠊᅗ ♧ࡍࡼ ࠺࡞ 100×300×1000 mm ヨ㦂యࢆస〇ࡋࡓࠋᅗ̺D♧ࡍࡼ࠺ࠊSAP̺ࣔࢹࣝࢆ⏝࠸ࡓሙ ྜࠊ100×100×400 mm ᶆ‽᭤ࡆヨ㦂య࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥྠᵝᆺᯟᗏ㠃ࡽᩳࡵୖ᪉ 㓄ྥࡋࡓࠋࡲࡓࠊᅗ̺E♧ࡍࡼ࠺ࠊࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝࢆ⏝࠸ࡓሙྜࠊᅗ୰◚⥺ࡢ▮ ༳♧ࡍࡼ࠺ࠊᆺᯟୖ㒊ഃ㠃㏆࡛ࡣࠊ⧄⥔ࡀỈᖹ㓄ྥ࡞ࡗࡓࡀࠊ౪ヨయෆ㒊࡛ࡣࠊ⧄⥔ࡀ ᐇ⥺ࡢ▮༳♧ࡍࡼ࠺ࠊSAP̺ࣔࢹࣝྠᵝᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄ྥࡋࡓࠋ ヨ㦂యࡢᖜࡀ⧄⥔ࡢ㓄ྥࡢࡼ࠺࡞ᙳ㡪ࢆ࠼ࡿࢆ᳨ウࡍࡿࡓࡵࠊᅗ̺ ♧ࡍࡼ ࠺࡞ᖜ 400㸪㧗ࡉ 150㸪㛗ࡉ 1000mm ࡢヨ㦂యࢆస〇ࡋࡓࠋᅗ㸫㸦D㸧E୧ྍどࣔࢹ ࣝࢥࣥࢡ࣮ࣜࢺࡢୖ㠃ࡽᙳࡋࡓ┿ࢆ♧ࡍࠋ୧ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࠾࠸࡚ྠᵝ࡞ഴྥ ࡞ࡾࠊ⧄⥔ࡀ㍈᪉ྥ‴᭤ࡍࡿ㓄ྥ࡞ࡗࡓࠋࡓࡔࡋࠊᅗ̺E♧ࡍࡼ࠺ࠊࢭ࣮ࣝࣟࢫ 㸫ࣔࢹࣝࢆ⏝࠸ࡓሙྜࠊ⧄⥔ࡣ㍈᪉ྥ‴᭤ࡍࡿഴྥࡀ㢧ⴭ࡞ࡗࡓࠋࡲࡓࠊヨ㦂యෆ㒊ࡢ⧄⥔ ࡢ㓄ྥ≧ἣࢆほᐹࡍࡿࡓࡵࠊᖜ 100㸪㧗ࡉ 200㸪㛗ࡉ 500 mm ࡢ↓ᗏࡢࢡࣜࣝᆺᯟࢆస〇ࡋ㸪 400×150×1000mm ヨ㦂యࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࢇࡔᚋࠊᅗ̺F♧ࡍࡼ࠺㸪୰ኸ ↓ᗏࡢᆺᯟࢆᤄධࡋࠊ↓ᗏᆺᯟ࿘ᅖࡢࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ㝖ཤࡋ࡚ࠊ↓ᗏᆺᯟ୰ࡢ⧄⥔ࡢ㓄 ྥࢆほᐹࡋࡓࠋ࡞࠾ࠊࣔࢹࣝࢥࣥࢡ࣮ࣜࢺᆺᯟࡢᦶ᧿ࢆῶᑡࡉࡏࡿࡓࡵࠊ↓ᗏࡢᆺᯟࡢഃ㠃 㣗⏝Ἔࢆሬࡗࡓࠋ ᅗ㸫GHࡣ୧ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸ࡓሙྜࠊ↓ᗏᆺᯟ୰ࡢ⧄⥔ࡢ㓄ྥࢆ♧ࡍࠋ SAP̺ࣔࢹࣝࢆ⏝࠸ࡓሙྜࠊᅗ㸫G♧ࡍࡼ࠺ࠊ100×100×400mm ᶆ‽᭤ࡆ౪ヨయྠᵝ ࠊ⧄⥔ࡀᆺᯟᗏ㠃ࡽᩳࡵୖ㓄ྥࡋࡓࠋࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝࢆ⏝࠸ࡓሙྜࠊᅗ㸫H 51 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ♧ࡍࡼ࠺ࠊᆺᯟෆ㒊ࡣయⓗᩳࡵୖ㓄ྥࡋࡓࡀࠊࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢᢞධཱྀ㏆࠸㒊ศ ࡛ࡣࠊ⧄⥔ࡀ౪ヨయ㍈᪉ྥ‴᭤ࡍࡿ㓄ྥ࡞ࡗࡓࠋ ᅗ㸫 ♧ࡍࡼ࠺ࠊ୧ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸࡚ࣃࢿࣝࡢ୰ᚰࡽᡴ㎸ࢇࡔሙ ྜ㸪⧄⥔ࡀྠᚰ≧㓄ྥࡍࡿࡇࡀ☜ㄆࡉࢀࡓࠋࡇࡢ㓄ྥࡢ࣓࢝ࢽࢬ࣒ࡣ௨ୗࡢࡼ࠺ㄝ᫂ࡍ ࡿࡇࡀ࡛ࡁࡿࠋᅗ̺ ♧ࡍࡼ࠺㸪ὶືࡍࡿ࣐ࢺࣜࢡࢫࡢ㏿ᗘ࣋ࢡࢺࣝࡣᨺᑕ≧࡞ࡗ ࡚࠸ࡿࡓࡵࠊ࣐ࢺࣜࢡࢫ୰࡛᭷㝈㛗ࡉࢆ᭷ࡍࡿ⧄⥔ࡣ࣐ࢺࣜࢡࢫࡶᨺᑕ᪉ྥ⛣ືࡋࡘ ࡘࠊ࿘᪉ྥࡢࡏࢇ᩿ຊࢆཷࡅࠊ࿘᪉ྥᅇ㌿㸦㓄ྥ㸧ࡍࡿࠋࡉࡽࠊᅗ̺DE♧ࡍࡼ ࠺ࠊᖜࡢࡁ࠸ヨ㦂యࡶᙧࣃࢿࣝྠᵝࠊ⧄⥔ࡀྠᚰ≧㓄ྥࡍࡿࡇࡀほᐹࡉࢀࡓࠋ 52 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ (mm) 100 100㻌 53 ᅗ㸫PPྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ (b) ࢭ࣮ࣝࣟࢫ࣮ࣔࢹࣝ㻌 㻌 1000㻌 (a) SAP̺ࣔࢹࣝ 1000㻌 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 300 1000㻌 (a)SAP̺ࣔࢹࣝ㻌 300㻌 1000㻌 (b)ࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝ㻌 ᅗ㸫PPྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ 54 (mm) ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 400 1000 (a)SAP̺ࣔࢹࣝ 400㻌 1000 㻌 (b)ࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝ㻌 ほᐹഃ㠃 150㻌 500㻌 400㻌 (d)SAP̺ࣔࢹࣝෆ㒊ࡢ⧄⥔㓄ྥ 150㻌 150㻌 15 㻌 1000㻌 (c)↓ᗏᆺᯟ⨨㻌 500㻌 (e)ࢭ࣮ࣝࣟࢫ̺ࣔࢹࣝෆ㒊ࡢ⧄⥔㓄ྥ (mm) ᅗ̺ PPྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ 55 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ φ㸻1200 㸦a㸧SAP̺ࣔࢹࣝ φ㸻1200㻌 (mm) Eࢭ࣮ࣝࣟࢫ䇲ࣔࢹࣝ㻌 ᅗ̺ ȭ㸻 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ 䝬䝖䝸䜽䝇䛾 ㏿ᗘ䝧䜽䝖䝹 ⧄⥔ ᅗ̺ ᨺᑕ≧ὶື୰ࡢ⧄⥔࿘㎶ࡢ㏿ᗘ࣋ࢡࢺࣝ 56 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 6.3.2 UFC ୰ࡢ⧄⥔ࡢ㓄ྥ ๓㡯ࡢྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥࡢᣲືࢆᐇ㝿ࡢUFC౪ヨయ࡛☜ㄆ ࡍࡿࡓࡵ㸪ᅗ㸫♧ࡍࡼ࠺ࠊUFCヨ㦂యࢆษ᩿ࡋ㸪ษ᩿㠃ࡢ⧄⥔ࡢ≧ἣࢆ☜ㄆࡋࡓࠋ ᅗ㸫DEࡣヨ㦂య A ࡢヨ㦂య㍈᪉ྥᖹ⾜ษ᩿ࡋࡓ⦪᩿㠃 AL ᆶ┤ษ᩿ࡋࡓษ ᩿㠃 AT ࡢ┿ࢆ♧ࡍࠋᅗ୰ࠊⓑ࠸Ⅼࡀ㗰⧄⥔ࡢษ᩿㠃࡛࠶ࡿࠋᅗ㸫Fษ᩿㠃 AT ࡢ༢ 㠃✚࠶ࡓࡾࡢ⧄⥔ᮏᩘ Nua ࢆ♧ࡍࠋᅗ㸫Dࡼࡾࠊヨ㦂య㍈᪉ྥᖹ⾜ษ᩿ࡋࡓ᩿㠃࡛ ࡣࠊ⧄⥔ࡢษ᩿㠃✚ࡀࡁࡃࠊᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄ྥࡍࡿࡇࡀほᐹࡉࢀࡓࠋ ⧄⥔ษ᩿㠃✚ ᩳࡵୖ᪉㓄ྥ ᡴ ㎸ ࡳ ഃ 100 200㻌 (a)ヨ㦂య㍈᪉ྥᖹ⾜ษ᩿ࡋࡓ᩿㠃 ྥᖹ⾜ษ᩿ AL ᡴタ㠃㻌 ⧄⥔ᮏᩘ㸦ᮏ㸧 ⧄⥔ษ᩿㠃✚ࠊᮏᩘᑡ࠸ 100㻌 ᆺᯟ㻌 ᗏ㠃㻌 ୖ㠃㻌 ⧄⥔ษ᩿㠃✚ᑠࠊᮏᩘከ࠸㻌 ᆺᯟᗏ㠃㻌 (b) ヨ㦂య㍈᪉ྥᆶ┤ษ᩿ࡋࡓ᩿㠃 AT (c) ὶື᪉ྥᆶ┤ษ᩿㠃 AT ࡢ⧄⥔ᮏᩘ Nua ᅗ㸫ヨ㦂య$㸦PP㸧 57 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ࡲࡓࠊᅗ㸫E㸦F㸧ࡼࡾヨ㦂య㍈᪉ྥᆶ┤ษ᩿ࡋࡓ᩿㠃ࡢ⤖ᯝ࡛ࡣࠊᡴタ㠃 ㏆ࡣ⧄⥔ࡢษ᩿㠃✚ࡀࡁࡃ㸪⧄⥔ᮏᩘࡀᑡ࡞ࡃ࡞ࡗ࡚࠸ࡿࡢᑐࡋ࡚ࠊᆺᯟᗏ㠃㏆ࡣ⧄⥔ࡢ ษ᩿㠃✚ࡀᑠࡉࡃࠊ⧄⥔ᮏᩘࡀከࡃ࡞ࡗࡓࠋ 100×100×400mm ࡢヨ㦂య A ࡢ⧄⥔ࡢ㓄ྥࡣ㸪100×100×400mm ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥ≧ἣྠᵝᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄ྥࡋࠊᐃᛶⓗ୍⮴ࡋ࡚࠸ࡿ ⪃࠼ࡽࢀࡿࠋ ᅗ㸫100×100×400mmࡢヨ㦂యBࡢษ᩿㠃BL2ࡢ⤖ᯝࢆ♧ࡍࠋᅗ㸫Dࡣゎᯒ⏝࠸ࡓ ⏬ീ࡛࠶ࡾࠋᅗ㸫EFࡣ༢㠃✚࠶ࡓࡾࡢ⧄⥔ᮏᩘ(Nua)⧄⥔ࡢ㓄ྥゅᗘ(θ)ࠊᅗ㸫 Gࡣษ᩿㠃ෆࡢ⧄⥔ࡢ᪉ྥゅᗘࡢศᕸ࡛࠶ࡿࠋ ᅗ㸫Dࡼࡾࠊୖ㠃㏆௨እ࡛ࡣ⧄⥔ࡀᑡ࡞ࡃ㸪⧄⥔ࡢษ᩿㠃ࡀ㛗ࡃ࡞ࡗ࡚࠸ࡿࡶࡢࡀほ ᐹࡉࢀࡿࠋࡲࡓࠊᅗ㸫㹢ࡼࡾࠊษ᩿㠃ෆࡢ⧄⥔ࡢ᪉ྥゅᗘࡘ࠸࡚ࠊ⣙75%ࡣ0㹼90r ศᕸࡋ࡚࠾ࡾࠊࡇࡢษ᩿㠃࡛ࡣࠊ⧄⥔ࡀᆺᯟᗏ㠃ᑐࡋ࡚ᩳࡵୖ᪉㓄ྥࡋ࡚࠸ࡿࡇࢆ♧ࡋ࡚ ࠸ࡿࠋ ᅗ̺ヨ㦂యBࡢ୧➃㒊ࡽษฟࡋࡓษ᩿㠃BL1BL3ࡢࢹࢪࢱ࣓ࣝ࢝ࣛ┿ࢆ♧ࡍࠋBL2 ྠᵝࠊ⧄⥔ࡀᆺᯟᗏ㠃ᑐࡋ࡚ᩳࡵୖ᪉㓄ྥࡋ࡚࠸ࡿࡇࢆ♧ࡋ࡚࠸ࡿࠋ ヨ㦂యBࡢ୰ኸ㒊ศ࠾ࡼࡧ୧➃㒊ศࡽษฟࡋࡓษ᩿㠃B L1㸪BL2BL3࠾࠸࡚ࠊ⧄⥔ࡢ㓄ྥࡀ ྠᵝ࡛ࠊᆺᯟᗏ㠃ᑐࡋ࡚ᩳࡵୖ᪉㓄ྥࡋ࡚࠸ࡿࠋ ヨ㦂యB࠾࠸࡚ࠊ㍈᪉ྥࡢ⧄⥔㓄ྥࡣࡰྠᵝ࡛ᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄ྥࡋࠊ 100×100×400mmࡢヨ㦂యAྠᵝ࡞⧄⥔㓄ྥศᕸࢆ♧ࡋ࡚࠸ࡿࠋࡍ࡞ࢃࡕࠊᖜࡀ100mmࡢ⊃࠸ヨ 㦂 య ࡛ ࡣ ࠊ ヨ 㦂 య ࡢ 㛗 ࡉ ࡣ ⧄ ⥔ ࡢ 㓄 ྥ ᙳ 㡪 ࡋ ࡞ ࡗ ࡓ ࠋ ࡲ ࡓ ࠊ 100×100×400mm࠾ ࡼ ࡧ 100×100×1000mmྍどࣔࢹ࡛ࣝほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥᐃᛶⓗ୍⮴ࡋ࡚࠸ࡿࡇࡶ♧ࡋ࡚ ࠸ࡿࠋ ヨ㦂యࡢ㧗ࡉࡀ⧄⥔ࡢ㓄ྥࡢࡼ࠺࡞ᙳ㡪ࢆ࠼ࡿࢆ᳨ウࡍࡿࡓࡵࠊᖜ100ࠊ㧗ࡉ300ࠊ 㛗ࡉ1000mmࡢヨ㦂యCࢆస〇ࡋࡓࠋᅗ㸫Dヨ㦂యࡢ㍈᪉ྥࡢ୰ᚰࡽษฟࡋࡓ᩿㠃ࡢCL ࡢ┿ࢆ♧ࡍࠋ࡞࠾ࠊࡇࡢヨ㦂యࡣᅗ̺♧ࡋࡓ100×100×400mmᶆ‽᭤ࡆ౪ヨయྠᵝࠊ ྠ⢏ᚄ࡛Ⰽࡢ␗࡞ࡿ⣽㦵ᮦ㸦ᗫ⎰㦵ᮦ㸧ࢆ⏝࠸࡚స〇ࡋࡓࠋࡑࡢ⤖ᯝࠊᅗ̺ྠᵝࠊᚋ ᡴ㎸ࢇࡔࢥࣥࢡ࣮ࣜࢺࡣඛᡴࡕ㎸ࢇࡔࢥࣥࢡ࣮ࣜࢺࡢୖ㠃ὶࢀࡿࡢ࡛ࡣ࡞ࡃࠊඛᡴࡕ㎸ ࢇࡔࢥࣥࢡ࣮ࣜࢺࢆᢲฟࡍࡼ࠺ࠊᩳࡵୖ᪉ὶືࡍࡿᵝᏊࢆ♧ࡋ࡚࠸ࡿࠋ ᅗ㸫㹠ษ᩿㠃୰ኸ㒊ࡢᣑᅗࢆ♧ࡍࠋྠᅗࡼࡾࠊ⧄⥔ࡀᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄ྥ ࡍࡿࡇࢆ♧ࡋ࡚࠸ࡿࠋࡲࡓࠊ100×300×1000mmྍどࣔࢹ࡛ࣝほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥྠᵝ ᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄ྥࡍࡿࡇࢆ᫂ࡽ࡞ࡗࡓࠋࡉࡽࠊ100×100×400mmࡢヨ㦂యA࠾ ࡼࡧ100×100×1000mmࡢヨ㦂యB࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥྠᵝᆺᯟᗏ㠃ࡽᩳࡵୖ᪉㓄ྥ ࡋࡓࠋࡍ࡞ࢃࡕࠊᖜ100mmࡢヨ㦂య࡛ࡣࠊヨ㦂యࡢ㛗ࡉ࠾ࡼࡧ㧗ࡉࡀ⧄⥔ࡢ㓄ྥᙳ㡪ࡋ࡞ࡗ ࡓࠋ ᅗ㸫 ヨ㦂య D ࡽษฟࡋࡓỈᖹษ᩿㠃 Dh2-3 ࡢ⤖ᯝࢆ♧ࡍࠋ ᅗ㸫D♧ࡍࡼ࠺ࠊ ษ᩿㠃 Dh2-3 ࡣ 32 ศࡋ࡚⏬ീࢆᙳࡋࡓࠋᅗ㸫Eࡣษ᩿㠃ࢆ ➼ศศࡅࠊྛ㒊ศࡢ⧄ ⥔ࡢ᪉ྥゅᗘศᕸࢆ♧ࡋࡓࠋᅗ㸫Fࡣษ᩿㠃ෆࡢ⧄⥔ࡢ㓄ྥゅᗘࢆ♧ࡍࠋ 58 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ᅗ㸫EFࡼࡾࠊࡇࡢษ᩿㠃࠾࠸࡚ࠊ⧄⥔ࡢ㓄ྥゅᗘࡀ 30㹼40r࡞ࡗ࡚࠾ࡾࠊ ⧄⥔ࡢ᪉ྥゅᗘࡣࠊ⣙ 80%ࡢ⧄⥔ࡣ 90㹼180rศᕸࡋ࡚࠸ࡿࡇࢆ♧ࡋ࡚࠸ࡿࠋ㓄ྥゅᗘࡢ⤖ ᯝࡼࡾࠊᅗ̺D♧ࡍࡼ࠺ࠊ⧄⥔ࡀỈᖹ㠃ᑐࡋ࡚ 30㹼40°ࡢゅᗘ࡛ᩳࡵୖ᪉㓄ྥࡋ ࡚࠸ࡿࠋࡲࡓࠊᅗ̺E♧ࡍࡼ࠺ࠊ᪉ྥゅᗘ㸦㛗ᚄ᪉ྥ㸧ࡢ⤖ᯝࡼࡾࠊỈᖹ㠃࠾࠸࡚ࠊ ⧄⥔ࡣヨ㦂యࡢᖜ᪉ྥࡢ୰ᚰഴ࠸࡚࠸ࡿࠋ ヨ㦂య D ࡢ➃㒊ࡽྲྀฟࡋࡓษ᩿㠃 Dh1 Dh3 ࡣࠊDh2 ྠᵝࠊỈᖹ㠃ᑐࡋ࡚ᩳࡵୖ᪉ 㓄ྥࡋࠊヨ㦂య㍈᪉ྥࡢ୰ᚰഴࡃ⤖ᯝ࡞ࡗࡓࠋ ௨ୖࡢࡇࡼࡾ㸪ヨ㦂య D ࠾࠸࡚ほᐹࡉࢀࡓ⧄ࡢ㓄ྥࡣ 400×150×1000mm ࡢྍどࣔࢹࣝ ࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥ≧ἣᐃᛶⓗ୍⮴ࡋࠊỈᖹ㠃ᑐࡋ࡚ᩳࡵୖ᪉㓄ྥ ࡋࠊヨ㦂య㍈᪉ྥࡢ୰ᚰഴࡃ⤖ᯝ࡞ࡗࡓࠋ ᅗ㸫 ᙧࣃࢿࣝ࠾࠸࡚୰ᚰࡽ 50 ࡢ⨨࡛༙ᚄ᪉ྥᑐࡋ࡚ 0°㸪30°㸪60°࠾ࡼࡧ 90°࡛ษฟࡋࡓ౪ヨయࡢ◚᩿㠃ࡢ⧄⥔ࡢ≧ἣࢆ♧ࡍࠋ┿ࡼࡾ㸪◚᩿㠃࠾࠸࡚⧄⥔ࡀ୍ᐃ᪉ྥ 㓄ྥࡋ࡚࠸ࡿࡇࡀ᫂☜ほᐹࡉࢀ㸪ࡑࡢ᪉ྥࡶ⧄⥔ࡀྠᚰ≧㓄ྥࡍࡿࡇࡽ᥎ᐃࡉ ࢀࡿ᪉ྥࡰ୍⮴ࡋ࡚࠸ࡿࠋ ᅗ㸫 ྛ◚᩿㠃ࡢ⏬ീゎᯒ⏝࠸ࡓ┿ࢆ♧ࡍࠋ᩿㠃ࢆ 16㸦44㸧ศࡋࠊྛ༊⏬ෆࡢ ༢㠃✚ᙜࡓࡾࡢ⧄⥔㓄ྥゅᗘࡢศᕸࢆᅗ㸫 ♧ࡍࠋᅗ㸫 ࡼࡾ౪ヨయ 0r㸪30r㸪60r ࡢሙྜࠊ◚᩿㠃ෆࡢ⧄⥔㓄ྥゅᗘࡣࡰ౪ヨయࡢษฟࡋゅᗘྠ⛬ᗘ࡞ࡾࠊࣃࢿࣝෆࡢ⧄⥔ࡀ ྠᚰ≧㓄ྥࡍࡿࡇࢆࡅ࡚࠸ࡿࠋ౪ヨయ 90rࡢሙྜࡣ㓄ྥゅࡀࡸࡸᑠࡉ࠸⤖ᯝ࡞ࡗ ࡓࠋࡇࡢ⌮⏤ࡣ⧄⥔ࡢษ᩿㠃ࡀ┿㏆ࡃ࡞ࡿࡓࡵࠊゅᗘࡢ᥎ᐃ⢭ᗘࡀపୗࡍࡿࡓࡵ⪃࠼ࡽࢀ ࡿࠋࡲࡓࠊྠᅗࡼࡾࠊ࠸ࡎࢀࡢ౪ヨయ࠾࠸࡚ࡶࠊ᩿㠃㧗ࡉ᪉ྥ࡛ࡢゅᗘᕪࡀぢࡽࢀࡎࠊ᩿㠃㧗 ࡉ᪉ྥ࡛ࡣ୍ᐃࡢ㓄ྥ࡞ࡗࡓࠋ ᅗ̺ ྛ◚᩿㠃ෆ㸦ษḞࡁ㒊㝖ࡁ㸧1cm2 ࠶ࡓࡾࡢ⧄⥔ᮏᩘࡢศᕸࢆ♧ࡍࠋ ᅗ̺ ྛ◚᩿㠃ෆ㸦ษḞࡁ㒊㝖ࡁ㸧⧄⥔ࡢ᪉ྥゅᗘࢆ♧ࡍࠋ౪ヨయ 0r㸪30r㸪60rࡢሙ ྜࠊ᩿㠃ෆ⣙ 75㸣௨ୖࡢ⧄⥔ࡀ 150㹼180r 0㹼30rࡢ᪉ྥ༊㛫㓄ྥࡋ࡚࠾ࡾࠊࡍ࡞ࢃࡕࠊ ⧄⥔ࡀ౪ヨయᗏ㠃ᑐࡋ࡚ࡰỈᖹ࡞ࡗ࡚࠸ࡿࡇࡀ᫂ࡽ࡞ࡗࡓࠋ ௨ୖࡢࡇࡼࡾࠊヨ㦂య E ࠾࠸࡚ࠊࣃࢿࣝࡢ୰ᚰࡽᡴ㎸ࡴࠊȭ1200mm ྍどࣔࢹࣝࢥ ࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥྠᵝྠᚰ≧㓄ྥࡍࡿࡇࡀ᫂ࡽ࡞ࡗࡓࠋࡇࡢ ࡼ࠺࡞ഴྥࡣᅗ̺ ♧ࡍࡼ࠺ࠊᖜ 400mm㸪㧗ࡉ 150mm㸪㛗ࡉ 1000mm ࡢྍどࣔࢹࣝࢥ ࣥࢡ࣮ࣜࢺࡢୖ㠃ࡽࡶほᐹࡉࢀࡓࠋ 59 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ୖ㠃 100 ὶື᪉ྥ㻌 ⧄⥔ᮏᩘ㸦ᮏ㸧 ᆺᯟᗏ㠃㻌 (a) BL2 ୖ㠃㻌 ᆺᯟᗏ㠃㻌 㓄ྥゅᗘ㸦r㸧㻌 (b) ༢㠃✚࠶ࡓࡾࡢ⧄⥔ᮏᩘ(Nua) ୖ㠃㻌 ᆺᯟᗏ㠃㻌 (c) ⧄⥔ࡢ㓄ྥゅᗘ(θ)㻌 (d) ⧄⥔ࡢ᪉ྥゅᗘ(φ)㻌 ᅗ̺ ษ᩿㠃 %/ 60 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ୖ㠃 ୖ㠃㻌 100 ᆺᯟᗏ㠃㻌 ᆺᯟᗏ㠃㻌 (a) BL1 (b) BL2 ᅗ̺ ษ᩿㠃 %/ %/ 300㻌 1000㻌 (a) ษ᩿㠃 CL (b) ୰ኸ㒊ᣑᅗ㻌 ᅗ̺ ヨ㦂య & 61 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ὶື᪉ྥ ഃ㠃㻌 ୰ᚰ㻌 ὶື᪉ྥ㻌 100 200㻌 (a) ษ᩿㠃 Dh2-3 㗹య ഃ㠃㻌 ȟ ୰ᚰ (b) ษ᩿㠃 Dh2-3 ࡢ㓄ྥゅᗘ 150~180 7% 0~30 3% 30~60 4% 0~30 5% 30~60 2% 120~150 11% 150~180 38% 150~180 15 4% 120~150 11% 0~30 2% 0~30 30~60 3% 150~180 1% 5% 60~90 10% 120~150 17% 30~60 2% 30~60 5% 150~180 51% 120~150 43% 90~120 52% ୰ᚰ㻌 0~30 21% 60~90 21% 90~120 34% 90°㻌 30~60 3% 0~30 23% ὶື᪉ྥ㻌 ഃ㠃 㠃㻌60°㻌 60~90 5% 150~180 13% 60~90 5% 60~90 13% 60~90 2% 90~120 4% 30~60 4% 60~90 0~30 4% 7% 120~150 14% 150~180 14% 90~120 12% 0~30 5% 30~60 8% 150~180 35% 120~150 34% 90~120 20% 60~90 20% 120~150 19% 90~120 53% 90~120 67% 120~150 30% (c) ษ᩿㠃 Dh2-3 ࡢ᪉ྥゅᗘ㻌 ᅗ̺ ษ᩿㠃 'K 62 90~120 34% ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ὶື᪉ྥ㻌 ὶື᪉ྥ㻌 ⧄⥔㻌 ୖ㠃 Ỉᖹ㠃㻌 ⧄⥔㻌 ഃ㠃㻌 ୗ㠃㻌 ୰ᚰ㻌 Ỉᖹ㠃㻌 (a) ⧄⥔ࡢ㓄ྥゅᗘ 㸦b㸧⧄⥔ࡢ᪉ྥゅᗘ ᅗ̺ ヨ㦂య ' Ỉᖹ㠃࠾ࡅࡿ⧄⥔ࡢ㓄ྥゅᗘ᪉ྥゅᗘ 63 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ (b) 30° (a) 0r (c) 60° (d) 90° ᅗ̺ ヨ㦂య ( ◚᩿㠃ࡢ⧄⥔㓄ྥ≧ἣ (a) 0° (b) 30° (c) 60° (d) 90° ᅗ̺ ヨ㦂య ( ࡢ⏬ീゎᯒ⏝࠸ࡓ┿㻌 64 㓄ྥゅᗘ㸦r㸧㻌 㓄ྥゅᗘ㸦r㸧㻌 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ୖ㠃㻌 ᆺᯟᗏ㠃 (b) 30° 㓄ྥゅᗘ㸦r㸧㻌 㓄ྥゅᗘ㸦r㸧㻌 (a) 0° ⧄⥔ᮏᩘ㸦ᮏ㸧㻌 ⧄⥔ᮏᩘ㸦ᮏ㸧㻌 (d) 90°㻌 (c) 60°㻌 ᅗ̺ ヨ㦂య ( ྛ◚᩿㠃ࡢ⧄⥔㓄ྥゅᗘ ୖ㠃㻌 ᆺᯟᗏ㠃㻌 (b) 30°㻌 ⧄⥔ᮏᩘ㸦ᮏ㸧㻌 ⧄⥔ᮏᩘ㸦ᮏ㸧㻌 (a) 0°㻌 (c) 60°㻌 (d) 90°㻌 ᅗ̺㻢㻚㻞㻠 ヨ㦂య 㻱 ྛ◚᩿㠃ࡢ⧄⥔ᮏᩘ㻌 65 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 150~180 29% 0~30 43% E 0r 120~150 7% 90~120 4% 60~90 7% 30~60 10% 150~180 39% 0~30 51% 120~150 4% 90~120 60~90 2% 1% 30~60 3% 150~180 27% 120~150 5% E30r 0~30 49% 90~120 3% 60~90 E60° 4% 30~60 12% 0~30 18% 150~180 32% 120~150 19% 30~60 9% 60~90 8% 90~120 14% ᅗ̺ ヨ㦂య ( ྛ◚᩿㠃ࡢ⧄⥔᪉ྥゅᗘ 66 E90° ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ 6.4. ࡲࡵ ᮏ❶࡛ࡣࠊྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿUFCࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓࠋࡲࡓࠊ◳ࡋࡓUFC ヨ㦂యࢆษ᩿ࡋࠊษ᩿㠃ࡢ⏬ീゎᯒࡼࡾ⧄⥔ࡢ㓄ྥࢆホ౯ࡋࠊྍどᐇ㦂ࡢ⤖ᯝẚ㍑ࡋࡓࠋ ࡑࡢ⤖ᯝࠊྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ㓄ྥ UFC ࡢ⧄⥔ࡢ㓄ྥࡀᐃᛶⓗ୍⮴ ࡋ࡚࠸ࡿࡇࡀ♧ࡉࢀࡓࠋ ᖜࡢᑠࡉ࠸ヨ㦂యࡢ∦ഃࡽᡴ㎸ࡴࠊ⧄⥔ࡀࢥࣥࢡ࣮ࣜࢺࡢὶື᪉ྥᖹ⾜ᩳࡵୖ᪉ 㓄ྥࡋࠊᖜࡢࡁ࠸ヨ㦂యࡢ∦ഃࡽᡴ㎸ࡴࠊ⧄⥔ࡀᩳࡵୖ᪉㓄ྥࡋࠊ୰ኸഃഴࡃഴྥ ࡞ࡗࡓࠋࡲࡓࠊࣃࢿࣝ≧ࡢᆺᯟࡢ୰ኸࡽᡴࡕ㎸ࡴ⧄⥔ࡀྠᚰ≧㓄ྥࡍࡿ⤖ᯝ࡞ࡗࡓࠋ 67 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ➨ 6 ❶ࡢཧ⪃ᩥ⊩ [1] L Vandewalle, D Dupont: Bending Test and Interpretation, Test and Design Methods for Steel Fibre Reinforced Concrete-Background and Experiences, RILEM publication PRO 31, pp.1-14, Bagneux, 2003 [2] P Stahli, R Custer, J.G.M.V Mier: On flow properties, fibre distribution, fibre orientation and flexural behaviour of FRC, Materials and Structures, Vol.41, No.1, pp.189-196, 2008 [3] W Pansuk, H Sato, Y Sato, R Shionaga: Tensile behaviors and fibre orientation of UHPC. Proceedings of second international symposium on ultra high performance concrete, Kassel, Germany, pp.161-168, 2008 [4] S.W Kim, S.T Kang, J.J Park, G.S Ryu: Effect of filling method on fibre orientation and dispersion and mechanical properties of UHPC. Proceedings of second international symposium on ultra high performance concrete, Kassel, Germany, pp.185-192, 2008 [5] P Stahli, J.G.M.V Mier: Manufacturing, fibre anisotropy and fracture of hybrid fibre concrete. Engineering Fracture Mechanics, Vol.74, pp.223-242, 2007 [6] M.C Torrijos, B Barragan, R Zerbino: Placing conditions, mesostructural characteristics and postcracking response of fibre reinforced self-compacting concrete. Construction and Building Materials, Vol.24, pp.1078-85, 2010 [7] L Ferrara, M.D Prisco, R Khurana: Tailoring optimum performance for the structural use of self consolidating SRFC. Proceedings of 7th international RILEM symposium on fibre reinforced concrete, pp.739-750, Chennai, India, 2008 [8] T.N.D Prasanth, R Gettu: On the distribution of fibres in self compacting concrete. Proceedings of 7th international RILEM symposium on fibre reinforced concrete, Chennai, India, pp.1147-1153, 2008 [9] P Stahli, M Sutter, J.G.M.V Mier: Improving the mechanical properties of HFC by adjusting the filling method, Proceedings of the Fifth International RILEM workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC5), Mainz, German, pp.23-30, 2007 [10] I. Markovic, J.C Walraven, J.G.M.V Mier: Self-compactig hybrid-fibre concrete-mix design, workability and mechanical properties, Proceedings of the Third International RILEM Symposium on SelfCompacting Concrete, Reykjavik, Iceland, pp.763-775, 2003 [11] S Grunewald: Performance-based design of self-compacting fibre reinforce concrete. Ph.D. Thesis. Delft University of Technology, 2004 [12] L Vandewalle, G Heirman, F.V Rickstal: Fibre orientation in self-compacting Fibre reinforced concrete. Proceedings of 7th international RILEM symposium on fibre reinforced concrete, Chennai, India, pp.719-728, 2008 [13] R Zerbino, J.M Tobes, M.E Bossio, G Giaccio: On the orientation of fibres in structural members fabricated with self compacting fibre reinforced concrete. Cement and Concrete Composites, Vol.34, pp.191-200, 2012 [14] S.T Kang, B.Y Lee, J.K Kim, Y.Y Kin: The effect of fiber distribution characteristics on the flexural strength of steel fiber-reinforced ultra high strength concrete. Construction and Building Materials, Vol.25, 68 ➨ 6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ pp.2450-2457, 2011 [15] D. Dupont, L. Vandewalle: Distribution of steel fibres in rectangular sections. Cement and Concrete Composites, Vol.27, pp.391-398, 2005 [16] L Martinie, P Rossi, N Roussel: Rheology of fiber reinforced cementitious materials: classification and prediction. Cement and Concrete Research, Vol.40, pp.226-234, 2010 [17] L Ferrara, A Meda: Relationships between fibre distribution, workability and the mechanical properties of SFRC applied to precast roof elements, Materials and Structures, Vol.39, pp.411-420, 2006 [18] B Boulekbache, M Hamrat, M Chemrouk, S Amziane: Flowability of fibre-reinforced concrete and its effect on the mechanical properties of the material. Construction and Building Materials, Vol.24, pp.1664-1671, 2010 [19] ࿘Ἴ㸪Ha Duy Nhi㸪ෆ⏣⿱ᕷ㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ㸪 ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.34㸪No.1㸪pp.268-273㸪2012 [20] ᶫᮏぶ㸪ᖹ⚽ᖾ㸪㎷ᖾ㸪⏣ᮧ┿㸸2 ㍈ᙉไ⦎ࡾ࣑࢟ࢧෆࡢࢥࣥࢡ࣮ࣜࢺࡢ⦎ΰࡐᶵ ᵓࡢྍど㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.15㸪No.1㸪pp.1037-1042㸪1993 [21] S.J Barnett, J.F Lataste, T Parry, S.G Millard, M.N Soutsos: Assessment of fiber orientation in ultra high performance fiber reinforced concrete and its effect on flexural strength. Materials and Structures, Vol. 43, No.7, pp. 1009 – 1023, 2010 [22] A Abrishambaf, J.A.O Barros, V.M.C.F Cunha: Relation between fibre distribution and postcracking behaviour in steel fibre reinforced self-compacting concrete panels, Cement and Concrete Research, Vol.(51), pp.57-66, 2013 [23] Rasband W (2008) ImageJ. National Institutes of Health, USA. http://rsb.info.nih.gov/ij/ 69 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ➨ 7 ❶ ᶆ‽᭤ࡆヨ㦂య࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵 ಀ㛵ࡍࡿ᳨ウ 7.1. ࡣࡌࡵ ➨6❶ࠕྍどࣔࢹࣝࡼࡿ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ⧄⥔ࡢ㓄ྥࡢホ౯࡛ࠖࡣ㸪ᙧ≧ ᑍἲࡀ␗࡞ࡿUFC౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࢆᢕᥱࡋࡓࠋ ᮏ❶࡛ࡣ⧄⥔ࡢศᩓ࣭㓄ྥࢥࣥࢡ࣮ࣜࢺࡢᘬᙇ≉ᛶࡢ㛵ಀࢆᐃ㔞ⓗホ౯ࡍࡿࡇࢆ┠ⓗ ࡋ㸪ษḞࡁ῝ࡉࡢ␗࡞ࡿ᭤ࡆ౪ヨయࡢ3Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪 J✚ศἲ㹙㹛ࡼࡾ᩿㠃㧗ࡉࡈ ࡢᘬᙇ㌾᭤⥺ࢆ᥎ᐃࡋࡓࠋヨ㦂ᚋ㸪⏬ീゎᯒࡼࡾ◚᩿㠃ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡋ㸪᩿㠃㧗ࡉࡈ ࡢᘬᙇᙉᗘ⧄⥔ᮏᩘ࠾ࡼࡧ㓄ྥゅᗘࡢᐃ㔞ⓗ࡞㛵ಀࡘ࠸᳨࡚ウࡋࡓࠋࡉࡽ㸪J✚ศ࡛ᚓ ࡽࢀࡓᘬᙇ㌾᭤⥺ࢆỗ⏝ゎᯒࢯࣇࢺDIANAࢆ⏝࠸࡚ゎᯒࢆ⾜࠸㸪J✚ศἲࡼࡿ⤖ᯝࢆ᳨ドࡋ ࡓࠋ 7.2. ᐇ㦂ᴫせ 7.2.1 ⏝ᮦᩱ࠾ࡼࡧ㓄ྜ ⏝ᮦᩱ࠾ࡼࡧ㓄ྜࡣ➨ 6 ❶㸪⾲̺ ྠᵝࡋࡓࠋᮦᩱ㸪㓄ྜࡣᵝ㏻ࡾ࡛࠶ࡾ㸪φ0.2 15mm ࡢ㗰⧄⥔ࢆ 2vol%ΰධࡋࡓࡶࡢ࡛࠶ࡿࠋ 7.2.2 ⦎ࡾΰࡐ࠾ࡼࡧ㣴⏕᪉ἲ ⦎ࡾΰࡐࡣ㸪ᐜ㔞 120L ࡢ 2 ㍈ᙉไ⦎ࡾ࣑࢟ࢧࢆ⏝࠸㸪୍ᅇࡢ⦎ࡾΰࡐ㔞ࡣ 55 ࣜࢵࢺࣝࡋ㸪 ྜィ 2 ࣂࢵࢳࢆ⾜ࡗࡓࠋ⦎ࡾΰࡐ᪉ἲࡣ㸪ࣉ࣑ࣞࢵࢡࢫ⣮యࢆ࣑࢟ࢧධࢀ 30 ⛊㛫✵⦎ࡾࡋ㸪 ࡑࡢᚋ㸪ỈῶỈࢆᢞධࡋ㸪ᡤせࡢὶືᛶࡀᚓࡽࢀࡿࡲ࡛⦎ࡾΰࡐࢆ⾜࠸㸪᭱ᚋ⧄⥔ࢆᢞධ ࡋ㸪ࡉࡽ㸪2 ศ㛫⦎ࡾΰࡐࢆ⾜ࡗࡓࠋ 㣴⏕᪉ἲࡘ࠸࡚ࡣ㸪ᅵᮌᏛࡢࠕ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢタィ࣭ᕤᣦ㔪㸦㸧 ࠖ 㹙㹛ᚑࡗ࡚㸪ᡴ㎸ࡳᚋ㸪୍ḟ㣴⏕ࡋ࡚ 20Υ㸫48 㛫ࡢᑒ⥸㣴⏕ࢆ⾜࠸㸪ࡑࡢᚋᡴᆺࡋ㸪ࡉ ࡽ㸪ḟ㣴⏕ࡋ࡚ 90Υ㸫48 㛫(᪼㝆 ㏿ᗘ 15Υ/hr)ࡢẼ㣴⏕ࢆ⾜ࡗࡓࠋ 7.2.3 ౪ヨయࡢస〇᪉ἲ ⾲㸫 ࡣᮏᐇ㦂࡛⏝࠸ࡓ౪ヨయࡢ୍ぴࢆ♧ࡍࠋᅗ㸫 ࡣ౪ヨయࡢᵝࢆ♧ࡍࠋᮏᐇ㦂࡛ ࡣ 100100400mm ࡢゅᰕ౪ヨయࢆ⏝࠸㸪⦎ࡾΰࡐᚋ㸪ࢥࣥࢡ࣮ࣜࢺࡢὀࡂཱྀࢆᆺᯟࡢ∦➃ ᅛᐃࡋࢥࣥࢡ࣮ࣜࢺࢆᆺᯟෆ࡛ὶືࡉࡏ࡚ᡴࡕ㎸ࡴ᪉ἲࢆ⏝࠸㸪ྛ✀㢮 5 ᮏࡎࡘࢆస〇ࡋࡓࠋᶆ ‽㣴⏕⤊ᚋ㸪ᆺᯟᗏ㠃ࡽษḞࡁࢆࡑࢀࡒࢀ 0㸪15㸪30㸪45mm ࢆᑟධࡋࡓࠋࡲࡓ㸪๓⠇ ㄝ᫂ࡋࡓ㏻ࡾ㸪ᆺᯟഃ㠃ࡢࡏࡁᯈຠᯝࢆ㝖ࡍࡿࡓࡵ㸪➹⪅ࡽࡢࡇࢀࡲ࡛ࡢ◊✲ᡂᯝࢆཧ⪃ࡋ㸪 ౪ヨయࡢഃ㠃ࡶ 10mm ࡢษḞࡁࢆᑟධࡋࡓࠋ 70 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ⾲㸫 ౪ヨయࡢ୍ぴ ヨ㦂య㻌 ษ䜚Ḟ䛝῝䛥 ᩘ㔞 㻔mm㻕㻌 㻔ᮏ㻕㻌 A 0 B 15 C 30 D 45 5 ᡴタ㠃 ᆺᯟᗏ㠃㻌 ษḞࡁ㻌 ᅗ㸫 ౪ヨయ 7.2.4 ຊᏛ≉ᛶࡢヨ㦂᪉ἲ ᅗ㸫 ຊᏛ≉ᛶࡢヨ㦂᪉ἲࢆ♧ࡍࠋࡍ࡚ࡢ౪ヨయࡘ࠸࡚㸪ษḞࡁࡣࡾࡢ3 Ⅼ᭤ࡆヨ㦂 ࢆ⾜࠸㸪Ⲵ㔜㸦P㸧㸪౪ヨయᗏ㠃ࡦࡧࢀ㛤ཱྀኚ㸦CMOD㸧㸪ࡦࡧࢀඛ➃㛤ཱྀኚ㸦CTOD㸧 ࠾ࡼࡧ㍕ⲴⅬኚ㸦LPD㸧ࢆィ ࡋࡓࠋヨ㦂ࡣࠕษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ 㔜㸫ኚ᭤⥺ヨ㦂᪉ἲࠖ㸦JCI-S-002-2003㸧>@‽ࡌ࡚⾜ࡗࡓࡀ㸪ࡓࡔࡋ㸪㍕Ⲵ᪉ྥࡣ㸪ᡴタ 㠃ࡽ㍕Ⲵࢆ⾜ࡗࡓࠋ ㍕Ⲵࡣ㸪ᡭື࣓࢝ࢽ࢝ࣝࢪࣕࢵ࢟ࢆ⏝ࡋ㸪Ⲵ㔜ࡢ᳨ฟࡣᐜ㔞 10kN ࡢ࣮ࣟࢻࢭࣝ㸪㛤ཱྀ ኚࡢ᳨ฟࡣ⢭ᗘ 1/2000mm ࡢࢡࣜࢵࣉࢤ࣮ࢪ㍕ⲴⅬኚࡢィ ࡣ⢭ᗘ 1/500mm ࡢ㧗ឤ ᗘኚィࢆ⏝࠸ࡓࠋ ᅗ㸫 ษḞࡁࡣࡾࡢ Ⅼ᭤ࡆヨ㦂 71 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 7.2.5 ᩿㠃㧗ࡉࡈࡢᘬᙇ㌾᭤⥺ ィ ࡉࢀࡓⲴ㔜㸦P㸧㸪㍕ⲴⅬኚ㸦LPD㸧࠾ࡼࡧࡦࡧࢀඛ➃㛤ཱྀኚ㸦CTOD㸧ࡽJ✚ศ ࡼࡾ᩿㠃㧗ࡉࡈࡢᘬᙇ㌾᭤⥺ࢆ᥎ᐃࡋࡓࠋ 7.2.6 ⏬ീゎᯒࡼࡿ◚᩿㠃ࡢ⧄⥔㓄ྥࡢホ౯ ษࡾḞࡁࡣࡾࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜ࡗࡓᚋ㸪ྛษḞࡁ῝ࡉࡈィ ࡉࢀࡓⲴ㔜㸫ࡦࡧࢀ 㛤ཱྀኚࡢ⤖ᯝࡽ㸪ᖹᆒ್㏆࠸≉ᛶࢆ᭷ࡍࡿ౪ヨయࢆ 1 ᮏࡎࡘ㑅ᐃࡋ㸪◚᩿㠃┤㏆࡛ࢥࣥࢡ ࣮ࣜࢺ࢝ࢵࢱ࣮ࢆ⏝࠸ษ᩿ࡋ㸪ษ᩿㠃ෆࡢ⧄⥔ᮏᩘ࠾ࡼࡧ㓄ྥゅᗘࢆ ᐃࡋࡓࠋ ᐃ᪉ἲࡣ௨ୗ ࡢ㏻ࡾ࡛࠶ࡿࠋ ᅗ㸫 ♧ࡍࡼ࠺㸪ಸ⋡ 50 ಸࡢ࣐ࢡࣟࢫࢥ࣮ࣉ࡛㸯⏬㠃ࡢᑍἲࢆ 4×6mm ࡋ࡚౪ヨయ ษ᩿㠃య㸦54 ⏬㠃㸧ࢆᙳࡋࡓࠋᅗ㸫 ࢹࢪࢱ࣐ࣝࢡࣟࢫࢥ࣮ࣉ࡛ᙳࡋࡓ┿ࡢ୍ ࢆ♧ࡍࠋᅗ୰㸪ⓑ࠸㠃✚ࡀ㗰⧄⥔ࡢษ᩿㠃࡛࠶ࡾ㸪⧄⥔ࡀษ᩿㠃ᑐࡋ࡚ᆶ┤㓄ྥࡋ࡚࠸ࡿሙ ྜࡣ┿࡞ࡾ㸪ᩳࡵ㓄ྥࡍࡿ㸪⧄⥔ࡢษ᩿㠃ࡣᴃ࡞ࡿࠋ1 ⏬㠃ࡈ⧄⥔ࡢᮏᩘྛ ⧄⥔ࡢษ᩿㠃ࡢ㛗ᚄ(La)▷ᚄ(Lb)ࢆィ ࡋ㸪ᘧ㹙㹛ࡼࡾ⧄⥔ࡢ㓄ྥࢆホ౯ࡍࡿࡇࡋࡓࠋ ࡲࡓ㸪⧄⥔ࡢᮏᩘ㓄ྥಀᩘ η ࡢ✚ࢆ᭷ຠ⧄⥔ᮏᩘࡋ࡚㸪1 ⏬㠃ࡈ᭷ຠ⧄⥔ᮏᩘ Neff ࢆồ ࡵ㸪ษ᩿㠃ෆࡢ᭷ຠ⧄⥔ᩘ Neff ࢆィ⟬ࡋࡓࠋ 4 6 100 8 13 13 12 100 13 13 ᅗ㸫 ษ᩿㠃ᙳ᪉ἲ 72 (mm) ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ Lb ߟൌ L ே ேܮ ͳ ͳ ߠ ݊݅ݏൌ ሾͳሿ㻌 ܰ ܰ ଵ ଵ ܮ ࡇࡇ࡛㸪N㸸୍⏬㠃࠶ࡓࡾࡢ⧄⥔ᮏᩘ η㸸㓄ྥಀᩘ ᅗ㸫 ᭷ຠ⧄⥔ᮏᩘ 7.2.7 DIANA ゎᯒࢯࣇࢺࡼࡿ J ✚ศࡢ⤖ᯝ᳨ド J ✚ศ㏫ゎᯒ࡛ᚓࡽࢀࡓᘬᙇ㌾᭤⥺ࢆධຊ್ࡋ࡚ỗ⏝ゎᯒࢯࣇࢺ DIANA ࢆ⏝࠸࡚ゎᯒ ࡋ㸪J ✚ศ㏫ゎᯒࡢ⤖ᯝࢆ᳨ドࡋࡓࠋ౪ヨయࡢせ⣲ศࡣ㸪ᅗ̺ ♧ࡍࡼ࠺㸪యࢆᙎ ᛶయࡋ㸪౪ヨయ୰ኸ᥋ྜせ⣲ࢆ㓄⨨ࡋࡦࡧࢀࢆࣔࢹࣝࡋࡓࠋゎᯒࡣ㸪㏫ゎᯒ࠾ࡼࡧ J ✚ ศࡢ⤖ᯝࢆᇶ࡙࠸࡚㸪᥋ྜせ⣲ከ┤⥺ᘬᙇ㌾᭤⥺ࢆ࠼㸪᭤ࡆᛂຊ㍕ⲴⅬࡢኚࢆồࡵࡓࠋ ⾲㸫 ゎᯒࡢヲ⣽ࢆ♧ࡍࠋ㏫ゎᯒ࠾ࡼࡧ J ✚ศࡢ⤖ᯝࡣḟ⠇࡛㏙ࡿࡀ㸪ᅗ̺ ྛゎᯒ ⏝࠸ࡓከ┤⥺ᘬᙇ㌾᭤⥺ࢆ♧ࡍࠋ ᙉไኚ㻌 ᙎᛶయ 100㻌 ᥋ྜせ⣲ 150㻌 ᅗ̺ ゎᯒࣔࢹࣝ 73 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ⾲㸫 ゎᯒ &DVH ୍ぴ ධຊࡋࡓᘬᙇ㌾᭤⥺ Case1 ᩿㠃㸸 ษḞࡁ 0mm ౪ヨయࡢ㏫ゎᯒ⤖ᯝ 㧗ࡉࡈᘬᙇ㌾᭤⥺ࢆධຊ Case2 ᩿㠃 0-15mm㸸 ษḞࡁ 0-15㹫㹫ࡢ J ✚ศ ᩿㠃 15-30mm㸸 ษḞࡁ 15-30㹫㹫ࡢ J ✚ศ ᩿㠃 30-100mm㸸 ษḞࡁ 30-45㹫㹫ࡢ J ✚ศ Case3 ᩿㠃㸸 ษḞࡁ 0-15㹫㹫ࡢ J ✚ศ Case4 ᩿㠃㸸 ษḞࡁ 15-30㹫㹫ࡢ J ✚ศ Case5 ᩿㠃㸸 ษḞࡁ 30-45㹫㹫ࡢ J ✚ศ ษḞࡁ0-15mmࡢJ✚ศ 14 14 12 12 10 10 ᛂຊ(N/mm2) ᛂຊ(N/mm2) ษḞࡁ0mm౪ヨయࡢ㏫ゎᯒ⤖ᯝ 8 6 4 2 8 6 4 2 0 0 0 2 4 6 0 ኚ(mm) 2 6 ኚ(mm) (a) (b) ษḞࡁ15-30mmࡢJ✚ศ ษḞࡁ30-45mmࡢJ✚ศ 14 14 12 12 ᛂຊ㸦N/mm2) ᛂຊ㸦N/mm2) 4 10 8 6 4 2 10 8 6 4 2 0 0 0 2 4 6 0 ኚ(mm) 2 4 ኚ(mm) (c) (d) ᅗ̺ ከ┤⥺ᘬᙇ㌾᭤⥺ 74 6 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 7.3. ᐇ㦂⤖ᯝ 7.3.1 ࣇࣞࢵࢩࣗᛶ≧࠾ࡼࡧᅽ⦰ᙉᗘ ࢥࣥࢡ࣮ࣜࢺࡢࣇࣞࢵࢩࣗᛶ≧ヨ㦂⤖ᯝࡘ࠸࡚㸪2 ࣂࢵࢳࡢࢥࣥࢡ࣮ࣜࢺࡢࣇ್࣮ࣟࡣࡰ ྠ⛬ᗘ࡛ࡑࢀࡒࢀ 215mm㸪220mm ࡞ࡗࡓࠋ✵Ẽ㔞ࡣࡑࢀࡒࢀ 4.5%㸪4.2%⛬ᗘ࡞ࡗࡓࠋ ᅗ㸫 ࡣᅽ⦰ᛂຊ㸫ࡦࡎࡳ᭤⥺ࢆ♧ࡍࠋᅽ⦰ᙉᗘࡣ 185N/mm2 ࡛㸪ࣖࣥࢢಀᩘࡣ 50.9KN/mm2 ࡞ࡗࡓࠋ 7.3.2 ᭤ࡆヨ㦂⤖ᯝ ᅽ⦰ᛂຊ(N/㹫㹫2) 200 150 100 50 0 0 1000 2000 3000 ࡦࡎࡳ(%) 4000 ᅗ㸫㻣㻚㻣 ᅽ⦰ᛂຊ㸫ࡦࡎࡳ᭤⥺㻌 ᅗ㸫 ࡣྛษḞࡁ῝ࡉ౪ヨయࡢⲴ㔜㸫㍕ⲴⅬኚࡢᖹᆒ᭤⥺ࢆ♧ࡍࠋᅗ㸫 ࡣྛษḞ ࡁ῝ࡉ౪ヨయࡢⲴ㔜㸫ࡦࡧࢀඛ➃㛤ཱྀኚᖹᆒ᭤⥺ࢆ♧ࡍࠋᅗ㸫 ࡣྛࢩ࣮ࣜࢬࡢ᭤ࡆ ᛂຊ㸫ࡦࡧࢀ㛤ཱྀኚ᭤⥺ࢆ♧ࡍࠋᅗ㸫 ࡣྛࢩ࣮ࣜࢬࡢ౪ヨయࡢᐇ ್ࡽ J ✚ศ᪉ ἲࡼࡾᚓࡽࢀࡓ᩿㠃㧗ࡉࡈࡢᘬᙇ㌾᭤⥺ࢆ♧ࡍࠋᅗ㸫 ࡣⲴ㔜㸫ࡦࡧࢀ㛤ཱྀኚ ᭤⥺ࡽ㏫ゎᯒࡼࡾồࡵࡽࢀࡓᘬᙇ㌾᭤⥺ࢆ♧ࡍࠋ ᅗ㸫 ࡼࡾ㸪ᆺᯟᗏ㠃ࡽ 0㹼15mm㸪 15㹼30mm ࠾ࡼࡧ 30㹼45mm ࡢ⨨࠾࠸࡚㸪᩿ 㠃㧗ࡉࡈ᫂☜࡞ᕪࡀ⏕ࡌ㸪ᆺᯟᗏ㠃㏆࠸㸪ᘬᙇᛂຊࡀ㧗ࡃ࡞ࡾ㸪ᘬᙇᙉᗘࡀࡑࢀࡒࢀ 13 N/mm2㸪11 N/mm2㸪8 N/mm2 ࡞ࡗࡓࠋ 50 A0mm B15mm C30mm D45mm 40 P (KN) 30 20 10 0 0 2 4 6 LPD (mm) 8 10 ᅗ㸫 ྛษḞࡁ῝ࡉ౪ヨయࡢ 3㸫/3' ᭤⥺ 75 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 50 A0mm B15mm C30mm D45mm 40 P (KN) 30 20 10 0 0 1 2 3 4 CTOD (mm) ( ) ᅗ㸫 ྛษḞࡁ῝ࡉ౪ヨయࡢ 3㸫&72' ᭤⥺ 30 A0mm B15mm C30mm D45mm ᭤ࡆᛂຊ㸦N/mm2) 25 20 15 10 5 0 0 1 2 3 ࡦࡧࢀ㛤ཱྀኚ(mm) 4 ᅗ㸫 ᭤ࡆᛂຊ㸫ࡦࡧࢀ㛤ཱྀኚ᭤⥺ 0-15 15-30 30-45 ᘬᙇᛂຊ㸦N/mm2) 16 14 12 10 8 6 4 2 0 0 1 2 CTOD (mm) 3 ᅗ㸫 ᐇ ್ࡽ - ✚ศࡼࡾᘬᙇ㌾᭤⥺㻌 A0mm B15mm C30mm D45mm ᘬᙇᛂຊ㸦N/mm2) 16 14 12 10 8 6 4 2 0 0 1 2 3 ࡦࡧࢀ㛤ཱྀኚ(mm) 4 ᅗ㸫 ᘬᙇᛂຊ㸫ࡦࡧࢀ㛤ཱྀኚ᭤⥺ 76 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 7.3.3 ◚᩿㠃ࡢ⏬ീゎᯒ⤖ᯝ ᅗ㸫 ࡣ࣐ࢡࣟࢫࢥ࣮ࣉࡢᙳ⠊ᅖ࡛࠶ࡿ㸦46mm㸧ࡢ༊⏬࠶ࡓࡾࡢ⧄⥔ᮏᩘศᕸᅗ ࢆ♧ࡍࠋᡴタ㠃ࡽᆺᯟᗏ㠃㏆࡙ࡃ㸪⧄⥔ᮏᩘࡀቑຍࡍࡿഴྥࡀぢࡽࢀࡓࠋࡲࡓ㸪᩿㠃ࡢ ୰ኸ㒊ศࡣഃ㠃㏆ࡼࡾ⧄⥔ᮏᩘࡀᑡ࡞ࡃ࡞ࡗࡓࠋ ᅗ㸫 ࡣ 46mm ࡢ༊⏬࠶ࡓࡾࡢ⧄⥔ࡢ㓄ྥಀᩘࢆ♧ࡍࠋᆺᯟᗏ㠃ࡽ 30mm ௨ෆ㸪㓄 ྥಀᩘ η ࡀࡰ 0.8 ௨ୖ࡞ࡗࡓࠋࡍ࡞ࢃࡕ㸪ࡇࡢ⠊ᅖ࡛ࡣ⧄⥔ࡀษ᩿㠃ᑐࡋ࡚ࡰᆶ┤࡞ ࡗ࡚࠸ࡿ᥎ᐃࡉࢀࡿࠋ ษ᩿㠃ࡢᖜ᪉ྥࡢ୰ኸ㒊ศ࡛ࡣ㸪ᆺᯟᗏ㠃ࡽᡴタ㠃㏆࡙ࡃࡘࢀ࡚㸪㓄ྥಀᩘ η ࡀపῶࡍ ࡿഴྥࡀぢࡽࢀࡓࠋࡍ࡞ࢃࡕ㸪⧄⥔ࡀษ᩿㠃ᑐࡋ࡚ᚎࠎᩳࡵୖ㓄ྥࡋ࡚࠸ࡿࡇࢆ᥎ᐃࡉ ࢀࡿࠋ≉㸪ᆺᯟᗏ㠃㏆ẚ㸪ษ᩿㠃ୖ㒊࡛ࡣ㓄ྥಀᩘ η ࡀ 3 ⛬ᗘపῶࡋࡓࠋ ᅗ㸫 ࡣ᭷ຠ⧄⥔ᩘ Neff ࡢศᕸᅗࢆ♧ࡍࠋ≉㸪᩿㠃ࡢᖜ᪉ྥࡢ୰ኸ㒊ศ࡛ࡣᡴタ㠃 ㏆ẚ㸪ᆺᯟᗏ㠃㏆࡛ࡢ Neff ࡣ 2 ಸ௨ୖ࡞ࡗࡓࠋࡲࡓ㸪ഃ㠃ᆺᯟ㏆࡛ࡣ㸪ษ᩿㠃୰ኸ㒊 ศࡼࡾ Neff ࡀ㧗ࡃ࡞ࡿഴྥࡶぢࡽࢀࡓࠋࡍ࡞ࢃࡕ㸪ᆺᯟᗏ㠃࠾ࡼࡧഃ㠃㏆࡛ࡣ⧄⥔ࡣษ᩿㠃 ᑐࡋ࡚ᆶ┤㏆࠸≧ែ㓄ྥࡋ࡚࠸ࡿࡢᑐࡋ࡚㸪᩿㠃ࡢୖ㒊࡛ࡣ᩿㠃ᑐࡋ࡚⧄⥔ࡀᩳࡵ 㓄ྥࡋ࡚࠸ࡿ᥎ᐃࡉࢀࡿࠋ ᅗ㸫 ࡣࢹࢪࢱ࣐ࣝࢡࣟࢫࢥ࣮ࣉ࡛ᙳࡋࡓ┿ࡢ୍ࢆ♧ࡍࠋᅗྡࡣྛ┿ࡢ᩿㠃 ෆ࡛ࡢ⨨ࢆ♧ࡍࠋᆺᯟᗏ㠃࠾ࡼࡧഃ㠃㏆࡛ࡣ⧄⥔ࡢᙧ≧ࡣ࡞ࡾ㸪ษ᩿㠃ࡢୖ㒊⨨࡛ࡣ ⧄⥔ࡀᴃ࡞ࡗ࡚࠸ࡿࠋࡍ࡞ࢃࡕ㸪ᆺᯟᗏ㠃࠾ࡼࡧഃ㠃࡛ࡣ⧄⥔ࡣษ᩿㠃ᑐࡋ࡚ᆶ┤㏆࠸ ≧ែ㓄ྥࡋ࡚࠸ࡿࡢᑐࡋ࡚㸪᩿㠃ࡢୖ㒊⨨࡛ࡣษ᩿㠃ᑐࡋ࡚⧄⥔ࡀᩳࡵ㓄ྥࡋ࡚࠸ ࡿ᥎ᐃࡉࢀࡿࠋ 77 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ⧄⥔ᮏᩘN 15 10 5 0 ᡴタ㠃 ྑഃ㠃 ᆺᯟᗏ㠃 ᕥഃ㠃 ᅗ㸫 ษ᩿㠃ࡢ⧄⥔ศᕸᅗ1PP 㓄ྥಀᩘηφ 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 ᡴタ㠃 ྑഃ㠃 ᆺᯟᗏ㠃 ᕥഃ㠃㻌 ᅗ㸫 ྛ┿୰ࡢ㓄ྥಀᩘ Ȟȭ ⧄⥔ᮏᩘN㓄ྥಀᩘηφ 15 10 5 0 ᡴタ㠃 ྑഃ㠃 ᆺᯟᗏ㠃 ᕥഃ㠃 ᅗ㸫 ᭷ຠ⧄⥔ᩘ 1HIIPP 78 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ B (ᡴタ㠃୰ኸ) B(ᡴタ㠃ഃ㠃) B (୰ኸ⨨) B (୰ኸ⨨ഃ㠃) 4 㸦mm㸧 B (ᆺᯟᗏ㠃୰ኸ) B(ᆺᯟᗏ㠃ഃ㠃) 6 ᅗ㸫 ษ᩿㠃ࡢ⧄⥔ࡢᙧ≧ 7.3.4 ᭱ᘬᙇᛂຊ᭷ຠ⧄⥔ᮏᩘ Neff ࡢ㛵ಀ ᅗ㸫 ࡣ᩿㠃㧗ࡉࡈࡢ J ✚ศἲ࡛ồࡵࡽࢀࡓᘬᙇ㌾᭤⥺ࡢࡦࡧࢀⓎ⏕ᚋࡢ᭱ᘬ ᙇᛂຊ᭷ຠ⧄⥔ᮏᩘࡢ㛵ಀࢆ♧ࡍࠋࡓࡔࡋ㸪᭱ᘬᙇᛂຊࡣ㧗ࡉ 0㹼15mm ༊㛫ࡢ್ࢆᇶ‽ ࡋࡓࠋࡲࡓ㸪᭷ຠ⧄⥔ᩘࡣࡑࡢ㧗ࡉෆࡢᖹᆒ್ࡋ㸪㧗ࡉ 0㹼15mm ༊㛫ࡢ್ࢆᇶ‽ࡋࡓࡶࡢ ࡛࠶ࡿࠋྠᅗࡼࡾ㸪᩿㠃㧗ࡉࡈ᭱ᘬᙇᛂຊࡢኚࡢྜࡣ᭷ຠ⧄⥔ᩘࡢኚࡢྜࡰ ྠᵝ࡞ഴྥࡀ♧ࡉࢀࡓࠋ 1 0.9 0.8 0.7 ᭱ᘬᙇᛂຊ 0.6 ᭷ຠ⧄⥔ᩘ 0.5 0-15 15-30 30-45 ᅗ㸫 ᭱ᘬᙇᛂຊ᭷ຠ⧄⥔ᮏᩘࡢ㛵ಀ 79 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 7.3.5 DIANA ゎᯒ⤖ᯝ ᅗ㸫 ษḞࡁ 0mm ౪ヨయࡢᐇ㦂್࠾ࡼࡧ Case1 Case2 ࡢゎᯒ⤖ᯝࢆ♧ࡍࠋ㏫ゎᯒ J ✚ศ࡛ᚓࡽࢀࡓᘬᙇ㌾᭤⥺ࢆ⏝࠸࡚ゎᯒࡋࡓ⤖ᯝࡣ㸪ᐇ㦂್ࡼࡃ୍⮴ࡋࡓࠋ ㏫ゎᯒࡣ᩿㠃ࡢᖹᆒⓗ࡞ σ̺ω ࢆ࠼ࡿࡢᑐࡋ࡚㸪J ✚ศἲࡣᒁᡤⓗ࡞ σ̺ω ࢆ࠼ࡿࠋCase1 ࡣ୍⮴ࡍࡿࡢࡣᙜ↛࡛࠶ࡿࡀ㸪Case2 ࡶࡼࡃ୍⮴ࡋ㸪J ✚ศἲࡼࡾồࡵࡽࢀࡓ σ̺ω ࡀጇᙜ࡛ ࠶ࡿࡇࢆ♧ࡋ࡚࠸ࡿ⪃࠼ࡽࢀࡿࠋ ࡲࡓ㸪ᅗ㸫 Case3㸪4㸪5 ࡢゎᯒ⤖ᯝࢆ♧ࡍࠋᘬᙇ㌾᭤⥺ࡢ㐪࠸ࡼࡾ౪ヨయࡢ᭤ࡆ ᛂຊ㸫㍕ⲴⅬ᭤⥺ࡣኚࡋ㸪Case3 Case5 ࡛ࡣ᭱᭤ࡆᙉᗘ 4 ⛬ᗘࡢᕪࡀ⏕ࡌࡿࡇࡀ♧ 30 30 25 25 ᭤ࡆᛂຊ(N/mm2) ᭤ࡆᛂຊ(N/mm2) ࡉࢀࡓࠋ 20 15 10 5 20 15 10 5 0 0 0 0.2 0.4 0.6 0.8 0 1 2 4 case1 8 10 12 ㍕ⲴⅬኚ(mm) ㍕ⲴⅬኚ(mm) ᐇ㦂್ 6 case1 ᐇ㦂್ case2 case2 (a)ึᮇ (b)య ᅗ̺ FDVH㸪 ࡢゎᯒ⤖ᯝ 40 35 30 25 20 15 10 5 0 ᭤ࡆᛂຊ(N/mm2) ᭤ࡆᛂຊ(N/mm2) 0 0.2 0.4 0.6 0.8 1 0 ㍕ⲴⅬኚ(mm) ᐇ㦂್ case3 case4 case5 40 35 30 25 20 15 10 5 0 2 4 6 8 10 12 ㍕ⲴⅬኚ(mm) ᐇ㦂್ case3 case4 case5 (a)ึᮇ (b)య ᅗ̺ FDVH㸪㸪 ࡢゎᯒ⤖ᯝ 80 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 7.4. ࡲࡵ ᮏ❶࡛ᚓࡽࢀࡓ࡞⤖ᯝࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ (1) ᭤ࡆ౪ヨయࢆᑐ㇟ࡋ࡚㸪ษḞࡁ῝ࡉࡢ␗࡞ࡿ౪ヨయࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪 J ✚ศࡼ ࡾ᩿㠃㧗ࡉࡈࡢᘬᙇ㌾᭤⥺ࢆ᥎ᐃࡋࡓࠋࡑࡢ⤖ᯝ㸪ᆺᯟᗏ㠃㏆࠸㸪᭱ᘬᙇᛂຊࡀ㧗 ࡃ࡞ࡿࡇࡀ᫂ࡽ࡞ࡗࡓࠋ (2) 3 Ⅼ᭤ࡆヨ㦂ᚋ㸪ษḞࡁ┤㏆ࡢษ᩿㠃ࡢ⧄⥔ሗࢆࢹࢪࢱ࣐ࣝࢡࣟࢫࢥ࣮ࣉ࡛ᙳࡋ㸪 ᭷ຠ⧄⥔ᮏᩘࢆィ⟬ࡋࡓࠋࡑࡢ⤖ᯝ㸪ᆺᯟᗏ㠃࠾ࡼࡧഃ㠃㏆࡛ࡣ᭷ຠ⧄⥔ᮏᩘࡀࡁࡃ࡞ࡾ㸪 ษ᩿㠃㧗ࡉ᪉ྥἢࡗ࡚పୗࡍࡿഴྥࡀ♧ࡉࢀࡓࠋ (3) ᩿㠃㧗ࡉࡈ᭱ᘬᙇᛂຊࡢኚࡢྜࡣ᭷ຠ⧄⥔ᩘࡢኚࡢྜࡰ୍⮴ࡋࡓࠋ 81 ➨ 7 ❶ ᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ➨ 7 ❶ࡢཧ⪃ᩥ⊩ [1] V.C Li, R.J Ward: A Novel Testing Technique for Post-peak Tensile Behavior of Cementitious Material㸪Fracture Toughness and Fracture Energy, pp.183-195, Balkema, 1989 [2] ᅵᮌᏛ㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢタィ࣭ᕤ᪉㔪㸦㸧 [3] JCI つ‽㸸ษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲJCI-S-0022003 82 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ 㛵ࡍࡿ᳨ウ 8.1 ࡣࡌࡵ ⮬ᕫሸᛶࢆ᭷ࡍࡿ UFC ࢆࣃࢿࣝ≧ࡢᆺᯟᡴࡕ㎸ࡴሙྜ㸪ࣃࢿࣝࡢ୰ኸࡽᡴࡕ㎸ࡴ⧄ ⥔ࡀྠᚰ≧㓄ྥࡋ㸪୰ᚰࡽ㞳ࢀࡿࡇࡢഴྥࡀ㢧ⴭ࡞ࡿࡇࡀሗ࿌ࡉࢀ࡚࠸ࡿ>@ࠋ ࡇࡢ㓄ྥࡢ࣓࢝ࢽࢬ࣒ࡣ➨ 6 ❶㸪ᅗ̺ ♧ࡍࡼ࠺ㄝ᫂ࡇࡀฟ᮶ࡿࠋ ᮏ❶࡛ࡣ㸪⧄⥔ࡢ㓄ྥࡼࡾ᭤ࡆᙉᗘࡀࡢ⛬ᗘኚࡍࡿࢆᐇ㦂ⓗ☜ㄆࡍࡿࡓࡵ㸪⧄⥔ࡀ ྠᚰ≧㓄ྥࡋ࡚࠸ࡿᙧࣃࢿࣝࡽࠊᡤᐃࡢゅᗘ࡛౪ヨయࢆษฟࡋ㸪᭤ࡆ㍕Ⲵヨ㦂◚᩿㠃 ࡢ⏬ീゎᯒࢆ⾜ࡗࡓࠋࡲࡓ㸪㛗᪉ᙧࣃࢿࣝࡘ࠸࡚ࡶ୰ᚰ 1 Ⅼࡲࡓ 2 Ⅼྠ UFC ࢆᡴ㎸ࡳ㸪 ᭤ࡆ౪ヨయࢆษࡾฟࡋ㸪᭤ࡆᙉᗘ⧄⥔ࡢ㓄ྥࢆ☜ㄆࡋࡓࠋ 8.2. ᐇ㦂ᴫせ 8.2.1 ⏝ᮦᩱ࠾ࡼࡧ㓄ྜ ⏝ᮦᩱ࠾ࡼࡧ㓄ྜࡣ➨ 6 ❶㸪⾲̺ ྠᵝࡋࡓࠋᮦᩱ㸪㓄ྜࡣᵝ㏻ࡾ࡛࠶ࡾ㸪ȭ0.2 15mm ࡢ㗰⧄⥔ࢆ 2vol%ΰධࡋࡓࡶࡢ࡛࠶ࡿࠋ 8.2.2 ⦎ΰࡐ࠾ࡼࡧ㣴⏕᪉ἲ ⦎ΰࡐࡣ㸪ᐜ㔞 120L ࡢ 2 ㍈ᙉไ⦎ࡾ࣑࢟ࢧࢆ⏝ࡋࡓࠋᡴ㎸ࡳ㏿ᗘࡣ⣙ 3L/min ࡋࡓࠋ౪ ヨయࡢ㣴⏕ࡣ㸪୍ḟ㣴⏕ࡋ࡚ 20Υs2Υࡢᜏ ᐊ࡛ 48 㛫⾜࠸㸪ࡑࡢᚋḟ㣴⏕ࡋ࡚ 90Υ ࡛ 48 㛫ࡢẼ㣴⏕ࢆ⾜ࡗࡓࠋ 8.2.3 ᙧࣃࢿࣝ ᮏ◊✲࡛⏝࠸ࡓᙧࣃࢿࣝࢆᅗ̺ ♧ࡍࠋᙧࣃࢿࣝࡢᑍἲࡣ┤ᚄ 1200mm㸪ཌࡉ 50mm ࡛࠶ࡿࠋᙧࣃࢿࣝࡢ୰ᚰࡽࢥࣥࢡ࣮ࣜࢺࢆ㐃⥆ⓗᡴ㎸ࢇࡔࠋ๓㏙ࡢ㏻ࡾ㸪᪤ ࡢ◊✲>̺ @ࡼࢀࡤ㸪ࣃࢿࣝࡢ୰ᚰࡽࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࡴ⧄⥔ࡀྠᚰ≧㓄ྥࡍࡿࡇࡀሗ࿌ ࡉࢀ࡚࠸ࡿࠋࡇࡢࡇࢆ☜ㄆࡍࡿࡓࡵணഛヨ㦂ࡋ࡚㸪ⴭ⪅ࡽࡀᥦࡋࡓྍどࣔࢹࣝࢥࣥࢡ ࣮ࣜࢺࢆ⏝࠸࡚ 1 ㎶ࡀ 1m ࡢṇ᪉ᙧࣃࢿࣝࡢ୰ᚰࡽᡴ㎸ࡴヨ㦂ࢆ⾜ࡗࡓ>@ࠋࡑࡢ⤖ᯝ㸪┿ ̺ ♧ࡍࡼ࠺⧄⥔ࡀྠᚰ≧㓄ྥࡍࡿࡇࡀ☜ㄆࡉࢀࡓࠋ ௨ୖࡢࡇࢆཧ⪃㸪ᙧࣃࢿࣝ࠾࠸࡚⧄⥔ࡢ㓄ྥࡀ᭤ࡆᙉᗘࡢ⛬ᗘᙳ㡪ࡍࡿࢆ ᳨ウࡍࡿࡓࡵ㸪ᅗ̺ ♧ࡍࡼ࠺㸪୰ᚰࡽ 30cm 50cm ࡢ⨨࠾࠸࡚㸪ࣃࢿࣝࡢ༙ ᚄ᪉ྥᑐࡋ࡚ 0°㸪30°㸪60°࠾ࡼࡧ 90°ࡢ᪉ྥ 5050200mm ࡢ౪ヨయࢆ 3 యࡎࡘษฟࡋࡓࠋ ࡞࠾㸪90rሙྜࡣࣃࢿࣝ୰ᚰࡽ༙ᚄ᪉ྥ㐃⥆ⓗ 8 యࡢ౪ヨయࢆษฟࡋࡓࠋ 83 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 8.2.4 㛗᪉ᙧࣃࢿࣝ ᅗ̺ ♧ࡍࡼ࠺㸪1200×60050mm ࡢ㛗᪉ᙧࣃࢿࣝࢆᑐ㇟ࡋ࡚㸪୰ᚰ 1 Ⅼ࠾ࡼࡧ 2 Ⅼ ࡽࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࡴ᪉ἲࡼࡾ㸪㛗᪉ᙧࣃࢿࣝヨ㦂యࢆ 2 యస〇ࡋࡓࠋࢥࣥࢡ࣮ࣜࢺ◳ ᚋ㸪ᅗ̺ ♧ࡍࡼ࠺㸪70×50×200mm ࡢ౪ヨయࢆษࡾฟࡋࡓࠋษฟࡋࡓ౪ヨయࡣᑐ⛠ᛶ ࡽ 1 ࡽ 15 ࡲ࡛ࡢ␒ྕࢆࡋ㸪ࡉࡽ␒ྕࡢ๓ E㸦1 Ⅼᡴ㎸ࡳ㸧 F㸦2 Ⅼᡴ㎸ࡳ㸧ࢆࡅ࡚ 30㼻 0㼻 90㼻 60㼻 1200mm 50mm ࣃࢿࣝෆࡢ⨨ᡴ㎸ࡳ᪉ἲࢆ⾲ࡍࡇࡋࡓࠋ ᅗ̺ ᙧࣃࢿࣝษ᩿᪉ἲ ┿̺ ྍどࣔࢹࣝࡼࡿ⧄⥔ࡢ㓄ྥ>@ 84 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 50mm 2Ⅼྠᡴ䛱㎸䜏 1Ⅼᡴ䛱㎸䜏 1200mm 12 6 7 7 8 4 4 5 13 9 10 10 11 10 10 9 14 15 14 14 15 14 6 7 7 8 13 1 2 2 3 4 4 5 600mm 1 2 2 3 12 ᅗ̺ 㛗᪉ᙧࣃࢿࣝࡢษ᩿᪉ἲ 8.2.5 ᭤ࡆヨ㦂᪉ἲ ᙧࣃࢿࣝ㛗᪉ᙧࣃࢿࣝࡽษฟࡋࡓ౪ヨయࡣᆺᯟᗏ㠃ഃ 10mm ࡢษḞࡁࢆᑟධࡋ㸪3 Ⅼ ᭤ࡆヨ㦂ࢆ⾜ࡗࡓࠋ᭤ࡆヨ㦂ࡣᅗ̺ ♧ࡍࡼ࠺࡞ษḞࡁࡣࡾࡢ 3 Ⅼ᭤ࡆヨ㦂࡛࠶ࡾ㸪Ⲵ㔜㸫 㛤ཱྀኚ᭤⥺ࢆィ ࡋࡓࠋヨ㦂ࡣࠕษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ ヨ㦂᪉ἲࠖ>@㸦JCI-S-002-2003㸧‽ࡌ࡚⾜ࡗࡓࠋࡲࡓ㸪3 Ⅼ᭤ࡆヨ㦂ࢆ⾜ࡗࡓᚋ◚᩿㠃࠾ ࡅࡿ⧄⥔ࡢ㓄ྥ≧ἣࡶほᐹࡋࡓࠋ h h/5 䜽䝸䝑䝥䝀䞊䝆 3h ᅗ̺ ษḞࡁࡣࡾࡢ Ⅼ᭤ࡆヨ㦂 8.2.6 ◚᩿㠃ࡢ⏬ീゎᯒࡼࡿ⧄⥔㓄ྥࡢホ౯ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜ࡗࡓᚋ㸪ᙧࣃࢿࣝ࠾࠸࡚୰ᚰࡽ 50 ࡢ⨨࡛ษฟࡋࡓ౪ヨయࡢ◚ ᩿㠃ࢆᑐ㇟ࡋ࡚㸪⏬ീゎᯒࢆ⾜࠸㸪⧄⥔ࡢ㓄ྥࢆホ౯ࡍࡿࡶ᭤ࡆᙉᗘࡢ㛵ಀࡶ᳨ウࡋ ࡓࠋ ⏬ീゎᯒࡢᡭ㡰ࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋࡲࡎ㸪◚᩿㠃ࢆࢧࣥࢻ࣮࣌ࣃ࣮ࢆ⏝࠸࡚◊☻ࡍࡿࠋࡑࡢ ḟ㸪ࢹࢪࢱ࣐ࣝࢡࣟࢫࢥ࣮ࣉࢆ⏝࠸࡚◚᩿㠃ࡢ┿ࢆᙳࡍࡿࠋ᭱ᚋ㸪ᙳࡋࡓ┿ࢆ⏬ 85 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ീゎᯒࢯࣇࢺ ImageJ>@ࢆ⏝࠸࡚⏬ീゎᯒࢆ⾜࠺ࠋゎᯒᚋ㸪⧄⥔ࡢ㓄ྥゅᗘ(θ)㸪 ษ᩿㠃ෆࡢ⥲ ⧄⥔ᮏᩘ(NT)㸪1cm2 ࠶ࡓࡾࡢ⧄⥔ᮏᩘ(Nua)⧄⥔ࡢ᪉ྥゅᗘ(φ)ࢆồࡵࡓࠋ⧄⥔ࡢ㓄ྥゅᗘࡣ㸪 ⧄⥔ࡀษ᩿㠃ᑐࡋ࡚ᆶ┤㓄ྥࡋ࡚࠸ࡿሙྜ 90r࡞ࡾ㸪⧄⥔ࡀษ᩿㠃ᑐࡋ࡚ᖹ⾜㓄ྥ ࡋ࡚࠸ࡿሙྜ 0r࡞ࡿࠋࡲࡓ㸪⧄⥔ࡢ᪉ྥゅᗘࡣ⧄⥔ࡢ㍈᪉ྥ◚᩿㠃ࡢᗏ㎶᪉ྥࡢゅᗘᐃ ⩏ࡍࡿࠋࡲࡓ㸪᩿㠃ෆࡢ⥲⧄⥔ᮏᩘᖹᆒ㓄ྥゅᗘࡢṇᘻ್ࡢ✚ࢆ᩿㠃ෆ᭷ຠ⧄⥔ᮏᩘ㸦Neff㸧 ࡋ࡚ィ⟬ࡋࡓࠋ 8.3. ᐇ㦂⤖ᯝ 8.3.1 ᙧࣃࢿࣝࡽษฟࡋࡓ౪ヨయࡢ᭤ࡆᙉᗘ ᅗ̺ ༙ᚄ᪉ྥᑐࡋ࡚ 90°ࡢ᪉ྥ㸦࿘᪉ྥ㸧ษฟࡋࡓ౪ヨయࡢ᭤ࡆᛂຊ㸫㛤ཱྀኚ᭤ ⥺㸦Ȫ̺CMOD ᭤⥺㸧ࢆ♧ࡍࠋ࡞࠾㸪ྠᅗ♧ࡋࡓ౪ヨయࡣ㸪ᅗ̺ ♧ࡋࡓࡼ࠺㸪୰ᚰ ࡽ༙ᚄ᪉ྥ㐃⥆ⓗษฟࡋࡓࡶࡢ࡛࠶ࡿࠋᅗ̺㸪 ࣃࢿࣝ୰ᚰࡽ 30cm ࠾ࡼࡧ 50cm ࡢ⨨࠾࠸࡚༙ᚄ᪉ྥᑐࡋ࡚ 0°㸪30°㸪60°࠾ࡼࡧ 90°ษฟࡋࡓ౪ヨయࡢ 3 Ⅼ᭤ࡆヨ㦂⤖ᯝ ࢆ♧ࡍࠋᅗ୰㸪⣽⥺ࡣྛ౪ヨయࡢ⤖ᯝ࡛࠶ࡾ㸪ኴ⥺ࡣᖹᆒ್ࢆ♧ࡍࠋ ᅗ̺ ♧ࡍࡼ࠺㸪༙ᚄ᪉ྥᑐࡋ࡚ 90°᪉ྥษฟࡋࡓ౪ヨయࡢ᭱᭤ࡆᛂຊࡣ 50 N/mm2 ⛬ᗘ࡛㸪୰ᚰࡽࡢ㊥㞳ࢃࡽࡎࡰ୍ᐃ࡞ࡗࡓࠋ ୍᪉㸪ᅗ̺㸪 ♧ࡍࡼ࠺౪ヨయࡢษฟࡋゅᗘࢆኚࡉࡏࡿ㸪ゅᗘᛂࡌ࡚᭱᭤ ࡆᛂຊࡀࡁࡃኚࡋࡓࠋᅗ̺ ♧ࡍࡼ࠺㸪r=30cm ࡢ⨨࡛ࡣ༙ᚄ᪉ྥᑐࡋ࡚ 60° 90°࡛ษฟࡋࡓ౪ヨయࡣ㸪ࡦࡧࢀⓎ⏕๛ᛶࡣపୗࡍࡿࡀᛂຊపୗࢆࡍࡿࡇࡣ࡞ࡃ㸪ᛂຊ ࡣୖ᪼ࡋ⥆ࡅ᭱᭤ࡆᛂຊࡣࡑࢀࡒࢀ 43N/mm2 48 N/mm2 ⛬ᗘ࡞ࡗࡓࠋࡇࢀᑐࡋ࡚㸪༙ᚄ ᪉ྥᑐࡋ࡚ 0° 30°࡛ษฟࡋࡓ౪ヨయࡣ㸪ࡦࡧࢀⓎ⏕ᛂຊࡀ୍᪦పୗࡋ㸪ࡑࡢᚋࡧᛂ ຊࡣୖ᪼ࡍࡿࡀ᭱᭤ࡆᛂຊࡣࡑࢀࡒࢀ 20 N/mm2 25 N/mm2 ⛬ᗘ࡞ࡾ㸪60° 90°ษฟࡋ ࡓሙྜࡢ 5 ⛬ᗘ࡞ࡗࡓࠋࡲࡓ㸪⾲̺ ♧ࡍࡼ࠺㸪r=50cm ࡢ⨨࡛ࡢࡦࡧࢀⓎ⏕ᚋ ࡢ᭱᭤ࡆᛂຊࡣ㸪90°࡛ษฟࡋࡓሙྜ 50 N/mm2 ࡛࠶ࡿࡢᑐࡋ࡚㸪60°㸪30°࠾ࡼࡧ 0°࡛ษࡾ ฟࡋࡓሙྜࡣ㸪ࡑࢀࡒࢀ 38N/mm2㸪17 N/mm2㸪࠾ࡼࡧ 5 N/mm2 ࡞ࡾ㸪90°ࡢሙྜẚ㸪ࡑ ࢀࡒࢀ 8 㸪4 ࠾ࡼࡧ 1 ⛬ᗘ࡞ࡗࡓࠋ ᪤ ࡢ◊✲࡛ࡣࣃࢿࣝࡢ୰ᚰࡽᡴ㎸ࢇࡔሙྜ㸪୰ᚰࡽ㞳ࢀࡿࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ ࡀྠᚰ≧㓄ྥࡍࡿഴྥࡀᙉࡃ࡞ࡿሗ࿌ࡉࢀ࡚࠸ࡿࠋᅗ̺ ᅗ̺ ࢆẚ㍑ࡍࡿ㸪ษ ฟࡋ⨨ࡀ୰ᚰ㏆࠸ r=30cm ẚ r=50cm ࡢ᪉ࡀษฟࡋゅᗘࡼࡿ᭤ࡆᙉᗘࡢኚࡀ㢧ⴭ ࡞ࡗ࡚࠾ࡾ㸪᪤ ࡢ▱ぢ୍⮴ࡋࡓ⤖ᯝ࡞ࡗࡓࠋࡇࢀࡣྠ୍ษฟࡋゅᗘࡢሙྜ࡛ࡶ㸪ษฟࡋ ⨨ࡼࡾ㸪⧄⥔ࡢ㓄ྥࡀ␗࡞ࡿࡇࢆ♧ࡋ࡚࠸ࡿ⪃࠼ࡽࢀࡿࠋࡋࡋ㸪90rࡢሙྜࡣᅗ̺ ♧ࡋࡓ㏻ࡾ୰ᚰࡽࡢ㊥㞳ࢃࡽࡎ᭱᭤ࡆᛂຊࡣࡰ୍ᐃ࡞ࡗ࡚࠸ࡿࠋࡋࡓࡀࡗ࡚㸪 ษฟࡋゅᗘ 90rࡢሙྜ࡛ࡣ㸪᭱᭤ࡆᛂຊᑐࡍࡿ㓄ྥࡢᙳ㡪ࡀᑠࡉ࠸ࡀ㸪60r௨ୗ࡛ࡣ㓄ྥ ࡢᙳ㡪ࡀࡁ࠸ࡇࡀ᥎ ࡉࢀࡿࠋ 86 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ⾲̺ ྛ౪ヨయࡢ᭱᭤ࡆᛂຊẚ⋡ ษฟࡋゅᗘ ᭱᭤ࡆᛂຊ ᛂຊẚ⋡ 90° 50 1.0 60° 38 0.8 30° 17 0.4 0° 5 0.1 ᭤ࡆᛂຊ(N/mm2) 60 50 40 30 20 10 0 0 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ(mm) 5 ᅗ̺ r౪ヨయࡢȪ&02' ᭤⥺ 50 40 60 90r 60r 30r 0r ᭤ࡆᛂຊ (N/mm2) ᭤ࡆᛂຊ (N/mm2) 60 30 20 10 0 0 40 30 20 10 0 0 0.1 0.2 0.3 0.4 0.5 ࡦࡧࢀ㛤ཱྀኚ᭤ࡆᛂຊ (mm) 90r 60r 30r 0r 50 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ (mm) 5 (a)๓ᮇ㒊ศ (b)య ᅗ̺ U FP ࡢȪ&02' ᭤⥺ 50 40 60 90r 60r 30r 0r ᭤ࡆᛂຊ (N/mm2) ᭤ࡆᛂຊ (N/mm2) 60 30 20 10 0 0 0.1 0.2 0.3 0.4 ࡦࡧࢀ㛤ཱྀኚ (mm) 40 30 20 10 0 0 0.5 90r 60r 30r 0r 50 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ (mm) (a)๓ᮇ㒊ศ (b)య ᅗ̺ U FP ࡢȪ&02' ᭤⥺ 87 5 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 8.3.2 㛗᪉ᙧࣃࢿࣝࡽษฟࡋࡓ౪ヨయࡢ᭤ࡆᙉᗘ (1) ୰ᚰ 1 Ⅼࡽᡴ㎸ࡴሙྜ ᅗ̺ 㛗᪉ᙧࣃࢿࣝࡢ㛗㎶᪉ྥษฟࡋࡓ౪ヨయࡢȪ̺CMOD ᭤⥺ࢆ♧ࡍࠋ࡞࠾㸪ࡇࡇ࡛ ࡣᆺᯟࡢ㛗㎶ࡽࡢ㊥㞳ࡈศࡅ࡚♧ࡋࡓࠋࣃࢿࣝ㛗㎶᪉ྥ୰ኸ᩿㠃ࡢ౪ヨయ E9㸪E10㸪E11 ࡢ᭱᭤ࡆᛂຊࡣ 50N/mm2 ⛬ᗘ࡞ࡾ㸪ᙧࣃࢿࣝ࠾࠸࡚ 90°᪉ྥษฟࡋࡓ౪ヨయྠ⛬ ᗘࡢ᭤ࡆᛂຊࢆᚓࡽࢀࡓࠋ㛗㎶᪉ྥࡢᆺᯟἢࡗࡓ౪ヨయ E1㸪E5㸪E6 ࡢ᭱᭤ࡆᛂຊࡣ୰ኸࡢ E9 ࡼࡾⱝᖸపୗࡋ㸪40N/mm2 ⛬ᗘ࡞ࡗࡓࠋࡲࡓ㸪ࣃࢿࣝ▷㎶᪉ྥ୰ኸ᩿㠃ࡢ E3㸪E8 ࡢ᭱᭤ ࡆᛂຊࡣ 30N/mm2 ࡛࠶ࡗࡓࠋ ᅗ̺ 㛗᪉ᙧࣃࢿࣝࡢ▷㎶᪉ྥษฟࡋࡓ౪ヨయࡢȪ̺CMOD ᭤⥺ࢆ♧ࡍࠋࣃࢿࣝ୰ኸ ㏆ࡢ౪ヨయ E15 ࡢ᭱᭤ࡆᛂຊࡣ 40N/mm2 ⛬ᗘ࡛࠶ࡿࡢᑐࡋ࡚㸪 㛗㎶᪉ྥࡢᆺᯟ㏆࠸ E14 ࡛ࡣ 18 N/mm2 ⛬ᗘపୗࡍࡿ⤖ᯝ࡞ࡗࡓࠋࡲࡓ㸪▷㎶᪉ྥࡢᆺᯟἢࡗࡓ E12 ࡢ᭱᭤ࡆᛂ ຊࡣ E15 ྠ⛬ᗘ࡞ࡗࡓࠋ (2) 2 Ⅼࡽᡴ㎸ࡴሙྜ ᅗ̺ 㛗㎶᪉ྥᖹ⾜ษฟࡋࡓ౪ヨయࡢȪ̺CMOD ᭤⥺ࢆ♧ࡍࠋ౪ヨయ F6㸪F7 ࡢ᭱ ᭤ࡆᛂຊࡣ 50N/mm2 ࡞ࡾ㸪ᙧࣃࢿࣝࡢ 0°᪉ྥ࠾ࡼࡧ 1 Ⅼᡴ㎸ࡳࡢ E9㸪E10 ྠ⛬ᗘ࡞ࡗ ࡓࠋ୍᪉㸪ࢥࣥࢡ࣮ࣜࢺࡢྜὶ㒊࡛࠶ࡿࣃࢿࣝࡢ㛗㎶᪉ྥ୰ኸ㒊ࡽษฟࡋࡓ౪ヨయ F9㸪F10㸪 F11 ࡛ࡣ㸪ࡦࡧࢀⓎ⏕ᚋࡢ᭱᭤ࡆᛂຊࡣ 2N/mm2 ⛬ᗘ࡞ࡾ㸪⧄⥔ࡼࡿᯫᶫຠᯝࡀࢇ ࡞࠸⤖ᯝ࡞ࡗࡓࠋ ᅗ̺ ࡣ▷㎶᪉ྥษฟࡋࡓ౪ヨయࡢȪ̺CMOD ᭤⥺ࢆ♧ࡍࠋ౪ヨయ F15 ࡢ᭱᭤ࡆᛂຊ ࡣ 50N/mm2 ⛬ᗘ࡛࠶ࡿࡢᑐࡋ࡚㸪౪ヨయ F13㸪F14 ࡛ࡣᛂຊࡀࡁࡃపୗࡋ㸪౪ヨయ F12 ࡛ࡣ పୗࡢᗘྜ࠸ࡣᑠࡉࡃ࡞ࡗࡓࠋ ௨ୖ㸪ࡦࡧࢀᚋࡢ᭱᭤ࡆᛂຊࡢኚࡢ≧ἣ࠾ࡼࡧ౪ヨయ◚᩿㠃ࡢ⧄⥔㓄ྥ≧ἣࡽ㸪㛗᪉ ᙧࣃࢿࣝࡢ୰ᚰ 1 Ⅼࡽᡴࡕ㎸ࡴሙྜ 2 Ⅼࡽᡴ㎸ࡴሙྜࡢ⧄⥔ࡢ㓄ྥࡣᅗ̺ ࡢࡼ࠺ ࡞ࡗ࡚࠸ࡿࡶࡢ᥎ᐹࡉࢀࡿࠋ 88 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ᭤ࡆᛂຊ(N/mm2) 60 50 40 30 20 10 0 0 E1 E5 E6 E9 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ(mm) 5 ᭤ࡆᛂຊ(N/mm2) 60 E2 E4 E7 E10 50 40 30 20 10 0 0 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ(mm) 5 ᭤ࡆᛂຊ(N/mm2) 60 E3 E8 E11 50 40 30 20 10 0 0 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ(mm) 5 ᅗ̺ Ⅼᡴ㎸ࡳࣃࢿࣝ㛗㎶᪉ྥࡢ᭤ࡆᙉᗘ ᭤ࡆᛂຊ(N/mm2) 60 E12 E13 E14 E15 50 40 30 20 10 0 0 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ(mm) 5 ᅗ̺ Ⅼᡴ㎸ࡳࣃࢿࣝ▷㎶᪉ྥࡢ᭤ࡆᙉᗘ 89 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ᭤ࡆᛂຊ(N/mm2) 60 50 40 30 20 10 0 0 F1 F5 F6 F9 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ(mm) 5 ᭤ࡆᛂຊ(N/mm2) 60 F2 F4 F7 F10 50 40 30 20 10 0 0 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ(mm) 5 ᭤ࡆᛂຊ(N/mm2) 60 50 F3 F8 F11 40 30 20 10 0 0 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ(mm) 5 ᅗ̺ Ⅼᡴ㎸ࡳࣃࢿࣝ㛗㎶᪉ྥࡢ᭤ࡆᙉᗘ ᭤ࡆᛂຊ(N/mm2) 60 F12 F13 F14 F15 50 40 30 20 10 0 0 1 2 3 4 ࡦࡧࢀ㛤ཱྀኚ(mm) 5 ᅗ̺ Ⅼᡴ㎸ࡳࣃࢿࣝ▷㎶᪉ྥࡢ᭤ࡆᙉᗘ 90 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 8.3.3 ౪ヨయ◚᩿㠃ࡢほᐹ⤖ᯝ ᙧࣃࢿࣝ࠾࠸࡚༙ᚄ᪉ྥᑐࡋ࡚ 0°㸪30°㸪60°࠾ࡼࡧ 90°࡛ษฟࡋࡓ౪ヨయࡢ◚᩿㠃ࡢ⧄ ⥔ࡢ≧ἣࡣ➨ 6 ❶㸪ᅗ̺ ♧ࡍࠋ┿ࡼࡾ㸪◚᩿㠃࠾࠸࡚⧄⥔ࡀ୍ᐃ᪉ྥ㓄ྥࡋ࡚࠸ ࡿࡇࡀ᫂☜ほᐹࡉࢀ㸪ࡑࡢ᪉ྥࡶ⧄⥔ࡀྠᚰ≧㓄ྥࡍࡿࡇࡽ᥎ᐃࡉࢀࡿ᪉ྥ ࡰ୍⮴ࡋ࡚࠸ࡿࠋ ࡲࡓ㸪ᅗ̺ ࡣ㛗᪉ᙧࣃࢿ࡛ࣝ 2 Ⅼࡽᡴ㎸ࢇࡔሙྜࡢࢥࣥࢡ࣮ࣜࢺࡢྜὶ㒊㸦౪ヨయ F9,10,11㸧ࡢ◚᩿㠃ࢆ♧ࡍࠋྜὶ㒊࡛ࡣ⧄⥔ࡢᩘࡀᑡ࡞ࡃ㸪ࡋࡶ◚᩿㠃ᑐࡋ࡚ᖹ⾜㓄ྥࡋ ࡚࠾ࡾ㸪⧄⥔ࡼࡿᯫᶫຠᯝࡀᮇᚅ࡛ࡁ࡞࠸ࡇࢆ♧ࡋ࡚࠸ࡿࠋ࡞࠾㸪㛗᪉ᙧࣃࢿࣝࡽษฟࡋ ࡓ౪ヨయ࡛ࡣ㸪᩿㠃ࡢ㧗ࡉ᪉ྥ࡛㓄ྥࡀኚࡍࡿࡶࡢࡶぢࡽࢀࡓࡀ㸪యⓗ࡞㓄ྥࡣᅗ̺ ࡢ ㏻ࡾ࡛࠶ࡗࡓࠋ ᅗ̺ ࢥࣥࢡ࣮ࣜࢺࡢྜὶ㒊ࡢ◚᩿㠃 (a)1 Ⅼᡴ㎸ࡳ (b) 2 Ⅼᡴ㎸ࡳ ᅗ̺ Ⅼ Ⅼᡴࡕ㎸ࡴሙྜࡢ⧄⥔㓄ྥண ᅗ 91 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 8.3.4 ◚᩿㠃ࡢ⏬ീゎᯒ⤖ᯝ ⏬ീゎᯒ⤖ᯝࡢヲ⣽ࢆ➨ ❶㸪 ㏙ࡓࠋ ⾲̺ ⏬ീゎᯒ⤖ᯝ㸦ษḞࡁ㒊㝖ࡁ㸧ࡢ୍ぴࢆ♧ࡍࠋᅗ㸫 90r౪ヨయࢆᇶ‽ࡋ㸪 ྛ౪ヨయࡢ᭤ࡆᙉᗘ᭷ຠ⧄⥔ᮏᩘࡢ㛵ಀࢆ♧ࡍࠋྠᅗࡼࡾ㸪⧄⥔ࡢ㓄ྥゅᗘࡢኚࡶ࡞࠺ ᭤ࡆᙉᗘࡢኚࡢྜࡣ㸪㓄ྥゅᗘࡢኚࡶ࡞࠺◚᩿㠃࠾ࡅࡿ᭷ຠ⧄⥔ᮏᩘࡢኚࡢ ྜࡰ୍⮴ࡍࡿࡇࢆ᫂ࡽࡋࡓࠋ ⾲㸫 ⏬ീゎᯒ⤖ᯝ ᖹᆒ㓄ྥゅᗘ θ ⥲⧄⥔ᮏᩘ NT ⥲᭷ຠ⧄⥔ᮏᩘ ᭤ࡆᙉᗘ (°) 㸦ᮏ㸧 (ᮏ) 㸦N/mm2㸧 0° 23 166 65 6.6 30° 33.5 475 262 16.45 60° 54 810 655 38.1 90° 64.5 907 819 49 ౪ヨయ 1 0.8 90r 60r 0.6 0.4 30r 0r 0.2 0 ᭤ࡆjᙉᗘ ᭷ຠ⧄⥔ᮏᩘ ᅗ㸫 ᭤ࡆᙉᗘ᭷ຠ⧄⥔ᮏᩘࡢ㛵ಀ 92 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ 8.4 ࡲࡵ ᮏ❶࡛ᚓࡽࢀࡓ࡞⤖ᯝࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ (1) ᙧࣃࢿࣝ UFC ࢆ୰ᚰࡽᡴ㎸ࡴ⧄⥔ࡣྠᚰ≧㓄ྥࡋ㸪ࡑࡢ⤖ᯝ㸪ࣃࢿࣝࡽ ษฟࡋࡓ౪ヨయࡢࡦࡧࢀⓎ⏕ᚋࡢ᭱᭤ࡆᛂຊࡣ㸪ษฟࡋࡓゅᗘࡼࡾኚࡋ㸪༙ᚄ᪉ྥᑐ ࡋ࡚ 0° 90°࡛ษฟࡋࡓሙྜ࡛ࡣ㸪1:10 ⛬ᗘࡢᕪࡀ⏕ࡌࡿࡇࡀ☜ㄆ࡛ࡁࡓࠋࡲࡓ㸪◚᩿㠃ࡢ⏬ ീゎᯒࡢ⤖ᯝࡽ㸪⧄⥔ࡢ㓄ྥゅᗘࡢኚࡶ࡞࠺᭤ࡆᙉᗘࡢኚࡢྜࡣ㸪㓄ྥゅᗘࡢኚ ࡶ࡞࠺◚᩿㠃࠾ࡅࡿ᭷ຠ⧄⥔ᮏᩘࡢኚࡢྜࡰ୍⮴ࡍࡿࡇࢆ᫂ࡽࡋࡓࠋ (2) 㛗᪉ᙧࣃࢿࣝ࠾࠸࡚㸪୰ᚰ 1 Ⅼࡽᡴࡕ㎸ࢇࡔሙྜ㸪⧄⥔ࡢ㓄ྥࡣᴃ≧࡞ࡿࡇࡀ ࣃࢿࣝࡽษࡾฟࡋࡓ౪ヨయࡢࡦࡧࢀⓎ⏕ᚋࡢ᭱᭤ࡆᛂຊࡽ᥎ ࡉࢀࡓࠋࡲࡓ㸪2 Ⅼࡽ ྠᡴ㎸ࢇࡔሙྜࡶ㸪ࡑࢀࡒࢀࡢᡴ㎸ࡳ⨨ࢆ୰ᚰྠᚰ≧㓄ྥࡍࡿࡇࡀ᥎ ࡉࢀࡓࠋ ࡉࡽࢥࣥࢡ࣮ࣜࢺࡢྜὶ㒊ࡀᙧᡂࡉࢀ㸪ྜὶ㒊࡛ࡣ⧄⥔ࡢᯫᶫຠᯝࡀࢇᮇᚅ࡛ࡁ࡞࠸ ⤖ᯝ࡞ࡿࡇࡀ☜ㄆ࡛ࡁࡓࠋ 93 ➨ 8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ➨ 8 ❶ࡢཧ⪃ᩥ⊩ [1] S.T Kang, J.J Park, G.S Ryu, S.W Kim: Investigation of fibre alignment of UHSFRC in flexural members. 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National Institutes of Health, USA. http://rsb.info.nih.gov/ij/ 94 ➨ 9 ❶ ⤖ㄽ 9.1 ࡣࡌࡵ ᮏㄽᩥࡣᅽ⦰ᙉᗘࡀ㏻ᖖࡢࢥࣥࢡ࣮ࣜࢺࡢ⣙ 5㹼10 ಸ࡞ࡿ UFC ࢆᑐ㇟ࡋ࡚㸪ࡑࡢຊᏛ≉ ᛶࡁ࡞ᙳ㡪ࢆཬࡰࡍࢥࣥࢡ࣮ࣜࢺෆ㒊ࡢ⧄⥔ࡢ㓄ྥࡘ࠸᳨࡚ウࡋࡓࡶࡢ࡛࠶ࡿࠋUFC ࡣ ⮬ᕫሸᆺࡢࢥࣥࢡ࣮ࣜࢺ࡛࠶ࡾ㧗ὶືᛶࢆ᭷ࡋ࡚࠾ࡾ㸪ᕤᆺᯟෆ࡛ࢥࣥࢡ࣮ࣜࢺࡀὶ ືࡍࡿࡓࡵ㸪⧄⥔ࡢ㓄ྥᛶࡀ㢧ⴭ⌧ࢀࡿࡇࡀ≉ᚩ࡛࠶ࡿࠋ ᮏㄽᩥ࡛ࡣ㸪UFC ࢆ⢓ᛶࢆ᭷ࡍࡿ↓Ⰽ㏱᫂࡞㧗྾Ỉᛶ㧗ศᏊᮦᩱ࡛ࣔࢹࣝࡋ㸪⧄⥔ࢆྍど ࡍࡿࡇ࡛㸪౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓࠋࡉࡽ㸪⧄⥔ࡢ㓄ྥࡀ UFC ࡢຊᏛ≉ᛶཬ ࡰࡍᙳ㡪ࡶ᳨ウࡋࡓࠋᮏ◊✲࡛ᚓࡽࢀࡓ⤖ㄽࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ 9.2 ྜᡂ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ࠾ࡼࡧ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ➨ 4 ❶ࠕPVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪࡛ࠖࡣ㸪UFC ࡢ㐺⏝⠊ᅖࡢᣑ ࢥࢫࢺࡢపῶࢆ┠ᣦࡋ㸪ᚑ᮶ࡢ㗰⧄⥔ࡢ௦ࢃࡾ㸪ᕷ㈍ࡢྛ✀ PVA ⧄⥔ࢆ⏝࠸ࡓሙྜࡢຊᏛ≉ᛶ ࡘ࠸᳨࡚ウࡋࡓࠋࡉࡽ㸪ᮏ❶࡛㑅ᐃࡋࡓ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࢆ 2 ✀㢮ࡢᡴ㎸ࡳ᪉ἲࢆ⏝ ࠸࡚㸪㛗ࡉ 2600mm㸪ᖜ 450mm㸪ཌࡉ 100mm ࡢࣃࢿࣝ㒊ᮦᡴ㎸ࡳ㸪◳ᚋ㸪100×100×400mm ࡢ᭤ࡆ౪ヨయࢆษࡾฟࡋ㸪ษḞࡁᱱࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪ᡴ㎸ࡳ᪉ἲ࠾ࡼࡧ౪ヨయࡢษࡾฟࡋ ࡢ᪉ྥ㸪⨨ࡀ᭤ࡆᣲືཬࡰࡍᙳ㡪ࢆ᳨ウࡋࡓࠋࡑࡢ⤖ᯝࠊᅽ⦰᭤ࡆ≉ᛶ╔┠ࡋࡓሙྜ㸪 W/C ࢆ 18%ࡋ࡚ φ0.66×30mm ࢆ 3%ΰධࡋࡓሙྜࡀ᭱ࡶඃࢀ࡚࠸ࡓࡀ㸪ᮦᩱศ㞳ࡍࡿഴྥࡀぢ ࡽࢀࡓࠋࡑࡇ࡛㸪φ0.66×30mm φ0.1×12mm ࡢ⧄⥔ࢆ 1㸸2 ࡢྜ࡛ΰྜࡋࡓࡇࢁᮦᩱศ㞳 ࢆᢚไ࡛ࡁ㸪140N/mm2 ࡢᅽ⦰ᙉᗘ 15N/ mm2 ௨ୖࡢ᭤ࡆᙉᗘࡀᚓࡽࢀࡓࠋࡉࡽࠊᆺᯟࡢ∦➃ ࡽᡴࡕ㎸ࢇࡔሙྜᡴ㎸ࡳ⨨ࢆ⛣ືࡉࡏᆒ➼ᡴࡕ㎸ࢇࡔሙྜ࡛㸪ࣃࢿࣝࡽษࡾฟࡋࡓ ౪ヨయࡢ᭤ࡆᙉᗘࡀࡁࡃ␗࡞ࡿࡇࢆ♧ࡋࡓࠋࡲࡓ㸪౪ヨయࡢ◚᩿㠃ࡢほᐹ⤖ᯝࡽ㸪ࢥࣥࢡ ࣮ࣜࢺࡢᡴ㎸ࡳ᪉ἲࡼࡾ⧄⥔ࡢ㓄ྥࡀ␗࡞ࡾ㸪ࡑࡢ⤖ᯝࡋ࡚᭤ࡆᙉᗘࡀኚࡍࡿࡇࢆ᫂ ࡽࡋࡓࠋ 9.3 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ➨ 5 ❶ࠕUFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ࡛ࠖࡣࠊ᭤ࡆ౪ヨయࢆᑐ㇟ࡋ࡚㸪ࢥࣥࢡ࣮ࣜࢺࢆ ㏱᫂࡞⢓ᛶࢆ᭷ࡍࡿὶయ࡛ࣔࢹࣝࡍࡿࡇ࡛౪ヨయ୰ࡢ⧄⥔ࡢྍどࢆヨࡳࡓࠋࡲࡓ㸪◳ࡋ ࡓ㗰⧄⥔ UFC ᭤ࡆ౪ヨయࢆษ᩿ࡋ࡚⧄⥔ࡢ㓄ྥࢆほᐹࡋ㸪ྍどᐇ㦂ࡢ⤖ᯝẚ㍑ࡋࡓࠋࡑࡢ ⤖ᯝࠊ㧗྾Ỉᛶ㧗ศᏊᶞ⬡ࢆ⏝࠸ࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡾ㸪᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄 ྥ≧ἣࢆほᐹ࡛ࡁࠊ౪ヨయࡢ∦➃ࡽࢥࣥࢡ࣮ࣜࢺࢆὶࡋ㎸ࡴ᪉ἲࡢሙྜ㸪⧄⥔ࡣ౪ヨయࡢ㍈᪉ ྥࡣ㓄ྥࡏࡎ㸪ᩳࡵୖ᪉㓄ྥࡍࡿࡇࡀ♧ࡉࢀࡓࠋ ➨ 6 ❶ࠕྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯࡛ࠖࡣࠊᙧ≧ᑍἲࡀ␗࡞ ࡿ UFC ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࢆᢕᥱࡍࡿࡇࢆ┠ⓗࡋ࡚ࠊ➨ 5 ❶࠾࠸࡚ᥦࡋࡓྍどࣔ ࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸ࠊ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓࠋࡲࡓࠊྠ୍ࡢᙧ≧ᑍἲࡢᆺᯟࢆ⏝ ࠸࡚ᐇ㝿ࡢ UFC ࢆస〇ࡋࠊ◳ᚋ౪ヨయࢆษ᩿ࡋ࡚ࠊ⧄⥔ࡢษ᩿㠃ࢆ⏬ീゎᯒࡍࡿࡇࡼ 95 ࡾ⧄⥔ࡢ㓄ྥࢆホ౯ࡋࠊྍどᐇ㦂ࡢ⤖ᯝẚ㍑ࡋࡓࠋࡑࡢ⤖ᯝࠊྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥᐇ㝿ࡢ UFC ࡢ⧄⥔ࡢ㓄ྥࡣᐃᛶⓗ୍⮴ࡋ࡚࠸ࡿࡇࢆ᫂ࡽࡋࡓࠋ ලయⓗࡣ UFC ࢆỈᖹࡢࣃࢿࣝ≧ࡢᆺᯟࡢ୰ኸࡽᡴࡕ㎸ࡴ⧄⥔ࡣ୍ᵝྠᚰ≧㓄ྥࡍ ࡿࠋࡲࡓࠊᖜࡢᑠࡉ࠸ᱱ≧ࡢヨ㦂యࡢ∦ഃࡽᡴࡕ㎸ࡴࠊ⧄⥔ࡣࢥࣥࢡ࣮ࣜࢺࡢὶື᪉ྥᖹ ⾜ᩳࡵୖ᪉㓄ྥࡋࠊᖜࡢᗈ࠸ᱱ≧ࡢヨ㦂యࡢ∦ഃࡽᡴࡕ㎸ࡴࠊ⧄⥔ࡀᩳࡵୖ᪉㓄ྥࡋࠊ ᖜ᪉ྥࡢ୰ኸഃഴࡃഴྥࡀ࠶ࡿࡇࢆ᫂ࡽࡋࡓࠋ 9.4 UFC ࡢຊᏛ≉ᛶ⧄⥔ࡢ㓄ྥࡢᐃ㔞ⓗ࡞㛵ಀ ➨ 7 ❶ࠕᶆ‽᭤ࡆヨ㦂య࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ࡛ࠖࡣࠊ ⧄⥔ࡢศᩓ࣭㓄ྥࢥࣥࢡ࣮ࣜࢺࡢ᭤ࡆ≉ᛶࡢ㛵ಀࢆᐃ㔞ⓗホ౯ࡋࡓࠋษḞࡁ῝ࡉࡢ␗࡞ࡿ᭤ ࡆ౪ヨయࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪J ✚ศἲࡼࡾ᩿㠃㧗ࡉࡈࡢᘬᙇ㌾᭤⥺ࢆ᥎ᐃࡋࡓࠋヨ㦂 ᚋ㸪⏬ീゎᯒࡼࡾ◚᩿㠃ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡋ㸪᩿㠃㧗ࡉࡈࡢᘬᙇᙉᗘ⧄⥔ᮏᩘ࠾ࡼࡧ㓄 ྥゅᗘࡢᐃ㔞ⓗ࡞㛵ಀࡘ࠸᳨࡚ウࡋࡓࠋࡑࡢ⤖ᯝࠊᆺᯟᗏ㠃㏆࠸㸪᭱ᘬᙇᛂຊࡀ㧗ࡃ ࡞ࡾࠊ᩿㠃㧗ࡉࡈ᭱ᘬᙇᛂຊࡢኚࡢྜࡣ᭷ຠ⧄⥔ᩘࡢኚࡢྜࡰ୍⮴ࡋࡓࠋ ➨ 8 ❶ࠕࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ࡛ࠖࡣࠊ⧄⥔ ࡢ㓄ྥࡀ UFC ࡢ᭤ࡆᙉᗘཬࡰࡍᙳ㡪ࢆ᳨ウࡍࡿࡓࡵࠊφ1200×50mm ᙧࣃࢿࣝࡢ୰ᚰ UFC ࢆᡴ㎸ࡳ㸪◳ᚋࣃࢿࣝࡢ༙ᚄ᪉ྥᑐࡋ࡚ 0°㸪30°㸪60°࠾ࡼࡧ 90°ࡢ᪉ྥ᭤ࡆ౪ヨయ ࢆษฟࡋ㸪᭤ࡆ㍕Ⲵヨ㦂◚᩿㠃ࡢ⏬ീゎᯒࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝ㸪ࣃࢿࣝࡽษฟࡋࡓ౪ヨయࡢ ࡦࡧࢀⓎ⏕ᚋࡢ᭱᭤ࡆᛂຊࡣ㸪ษฟࡋࡓゅᗘࡼࡾኚࡋ㸪༙ᚄ᪉ྥᑐࡋ࡚ 0° 90°࡛ษ ฟࡋࡓሙྜ࡛ࡣ㸪1:10 ⛬ᗘࡢᕪࡀ⏕ࡌࡿࡇࡀ☜ㄆ࡛ࡁࡓࠋࡲࡓ㸪◚᩿㠃ࡢ⏬ീゎᯒࡢ⤖ᯝ ࡽ㸪⧄⥔ࡢ㓄ྥゅᗘࡢኚࡶ࡞࠺᭤ࡆᙉᗘࡢኚࡢྜࡣ㸪㓄ྥゅᗘࡢኚࡶ࡞࠺◚᩿ 㠃࠾ࡅࡿ᭷ຠ⧄⥔ᮏᩘࡢኚࡢྜࡰ୍⮴ࡍࡿࡇࢆ᫂ࡽࡋࡓࠋ 9.5 ᚋࡢᒎᮃ 9.5.1 タィ࣭ᕤ࠾ࡅࡿ⧄⥔ࡢ㓄ྥࡢ⪃៖ ⌧⾜ࡢᅵᮌᏛࡢ UFC ᣦ㔪㸦㸧࡛ࡣᮦᩱಀᩘ γc㸻1.3 ࡍࡿࡇ࡛⧄⥔ࡢ㓄ྥࡘ࠸࡚┤᥋ ⓗࡣ⪃៖ࡋ࡚࠸࡞࠸ࡀࠊᚋࡣ⧄⥔ࡢ㓄ྥࡀ㒊ᮦࡢᙉᗘࡢᙳ㡪ࢆᢕᥱࡋࡘࡘࠊࡉࡽྜ⌮ⓗ ࡞タィ᪉ἲࢆᥦࡍࡁ⪃࠼ࡽࢀࡿࠋࡲࡓࠊᮦᩱ≉ᛶࢆồࡵࡿࡓࡵࡢ౪ヨయࡢస〇᪉ἲࡢ⤫୍ࠊ ࡉࡽࡣࠊ౪ヨయࡽᚓࡽࢀࡿᮦᩱ≉ᛶࢆ㒊ᮦ୰࡛ࡢ≉ᛶࡢ㛵ಀࢆ᫂☜ࡍࡿᚲせࡀ࠶ࡿࠋ ⌧⾜ࡢᅵᮌᏛࡢ UFC ᣦ㔪㸦㸧࡛ࡣ UFC ࡢᕤࡘ࠸࡚ࠊ࠸ࡃࡘࡢ␃ពⅬࢆᣲࡆࡽࢀ࡚࠶ ࡾࠊᡴࡕ㔜ࡡ㒊ࡀྜὶ㒊࡛ࡣࠊࡘࡁᲬ࡞ࢆ⏝࠸ࢥࣥࢡ࣮ࣜࢺࡢ⧄⥔ࢆࡁࡍᚲせࡀ࠶ࡿࡉ ࢀ࡚࠸ࡿࠋࡋࡋࠊ⌧≧࡛ࡣࡋࡢ᪉ἲ⧄⥔ࡢ㓄ྥࡢ㛵ಀࡣ᫂☜ࡉࢀ࡚࠾ࡽࡎࠊᚋ᭦࡞ࡿ ◊✲ࡀᚲせ࡛࠶ࡿࠋ 9.5.2 ⧄⥔ࡢ㓄ྥࡢホ౯ᢏ⾡ ➨ 3 ❶࠾࠸࡚㓄ྥࡢホ౯ᢏ⾡㛵ࡍࡿ᪤ ࡢ◊✲ࢆᣲࡆࡓࠋࡇࢀࡽࡢࢇࡣᐇ㦂ᐊ࡛ స〇ࡋࡓ౪ヨయࢆᑐ㇟ࡋࡓࡶࡢ࡛࠶ࡾࠊᐇ㝿ࡢ UFC ᵓ㐀≀ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡍࡿ◊✲ࡣ ࢇ࡞࠸ࠊࡋࡓࡀࡗ࡚ࠊᚋࠊᐇ㝿ࡢ UFC ᵓ㐀≀୰ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡍࡿᢏ⾡ࢆ㛤Ⓨࡍ 96 ࡿᚲせࡀ࠶ࡿࠋ 9.5.3 ⧄⥔ࡢ㓄ྥࡢண ᮏㄽᩥ࡛ᥦࡋࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡣᐃᛶⓗࡣ⧄⥔ࡢ㓄ྥࢆண ࡛ࡁࡿࡀࠊᐃ㔞 ⓗ࡞ホ౯ࡣ㞴ࡋ࠸ࠋࡑࡢࡓࡵࠊᚋࡣࠊᐃ㔞ⓗ⧄⥔ࡢ㓄ྥࢆண ࡍࡿࡓࡵࡢᩘ್ࢩ࣑࣮ࣗࣞࢩ ࣙࣥᢏ⾡ࡢ㛤Ⓨࡀᮃࡲࢀࡿࠋ 9.5.4 ⧄⥔ࡢ㓄ྥຊᏛ≉ᛶ ➨ 8 ❶࡛ࡣࠊ⧄⥔ࡢ㓄ྥᛶࡀ␗࡞ࡿ౪ヨయࢆ⏝࠸ࠊ⧄⥔ࡢ㓄ྥࡀ౪ヨయࡢ᭤ࡆᙉᗘࡢᙳ㡪ࢆ ᳨ウࡋࡓࡀࠊྛࢩ࣮ࣜࢬࡢ౪ヨయ࠾࠸࡚⧄⥔ࡢ㓄ྥゅᗘࡀ␗࡞ࡿ⧄⥔ࡢᮏᩘࡶ␗࡞ࡾࠊ⧄⥔ ࡢ㓄ྥࡢࡳࡢ᭤ࡆᙉᗘࡢᙳ㡪ࡢ᳨ウࡣࡲࡔ༑ศ࡛࠶ࡿࠋᚋࠊ⧄⥔ࡢᮏᩘ㓄ྥࡢᙳ㡪ࢆศ 㞳ࡋ࡚ホ౯ࡍࡿᚲせࡀ࠶ࡿࠋ 9.5.6 ⧄⥔ࡢ㓄ྥࡢไᚚ UFC ࡢᡴ㎸ࡳ⧄⥔ࡢ㓄ྥᛶࢆไᚚࡍࡿ᪉ἲࡋ࡚ࡣࠊ࠸ࡃࡘࡀ⪃࠼ࡽࢀࡿࠋ࠼ࡤࠊᡴ ㎸ࡳᚋࠊࡘࡁᲬ࡞ࢆ⏝࠸ࠊ࣐ࢺࣜࢡࢫࢆࡧᒁᡤⓗὶືࡉࡏࠊ⧄⥔ࢆ㓄ྥ࡛ࡁࡿ⪃࠼ ࡽࢀࡿࠋࡋࡋࠊ⌧≧࡛ࡣ✺ࡁᲬࡢ᧯స᪉ἲࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ㓄ྥࡢ㛵ಀࡣ࡛᫂࠶ࡾࠊ ᚋࠊゎ᫂ࡍࡿᚲせࡀ࠶ࡿࠋࡑࡢ㝿ࠊᮏㄽᩥ࡛ᥦࡋࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡣ⌧㇟ࢆᐜ᫆ ┤᥋☜ㄆ࡛ࡁࡿࡇࡽࠊ᭷ຠ࡛࠶ࡿ⪃࠼ࡽࢀࡿࠋ 9.6 ࡲࡵ ᮏ◊✲࡛ࡣࠊ㒊ᮦ୰ࡢᒁᡤⓗ࡞⧄⥔ࡢ㓄ྥ╔┠ࡋ࡚◊✲ࢆ⾜ࡗࡓࡀࠊᒁᡤⓗ࡞⧄⥔ࡢ㓄 ྥࡀ㒊ᮦయࡢᣲືཬࡰࡍᙳ㡪ࡘ࠸࡚ࡣᚲࡎࡋࡶ᫂☜࡛ࡣ࡞࠸ࠋࡲࡓࠊ⧄⥔ࡢ㓄ྥࡣࠊᖖ ᵓ㐀≀ࡢᛶ⬟పୗ⤖ࡧࡃࢃࡅ࡛ࡣ࡞ࡃࠊไᚚࡉ࠼࡛ࡁࢀࡤ✚ᴟⓗ㓄ྥࡉࡏࡿࡇ࡛ࠊᛶ⬟ ྥୖᐤࡍࡿྍ⬟ᛶࡶ⪃࠼ࡽࢀࡿࠋࡋࡓࡀࡗ࡚ࠊ⧄⥔ࡢ㓄ྥࡢၥ㢟ࡣᚋࡶ◊✲㛤Ⓨࡀᙉࡃᮃ ࡲࢀࡿㄢ㢟࡛࠶ࡿࠋ 97 ㅰ㎡ ᮏㄽᩥࡣࠊ➹⪅ࡀᒱ㜧ᏛᏛ㝔ᕤᏛ◊✲⛉༤ኈᚋᮇㄢ⛬⏕⏘㛤Ⓨࢩࢫࢸ࣒ᕤᏛᑓᨷᅾ⡠ ୰ࡾࡲࡵࡓࡶࡢ࡛࠶ࡾࡲࡍࠋ ᣦᑟᩍဨࡢᒱ㜧Ꮫ⥲ྜሗ࣓ࢹࢭࣥࢱ࣮ ෆ⏣⿱ᕷᩍᤵࡣࠊ◊✲ィ⏬ࡽᐇ㦂᪉ἲࡸ ㄽᩥࡢࡾࡲࡵ⮳ࡿࡲ࡛ࡈᣦᑟࢆ㡬ࡁࠊࡲࡓᅜෆእ࡛ࡢㄽᩥⓎ⾲ࡢᶵࢆ࠼࡚㡬࠸ࡓࡇ ᚰࡼࡾឤㅰࢆ⏦ࡋୖࡆࡲࡍࠋ ࡲࡓࠊᒱ㜧ᏛᕤᏛ㒊♫ᇶ┙ᕤᏛ⛉ ᑠᯘᏕ୍ᩍᤵ࡞ࡽࡧᅜᯞ ⛱ᩍᤵࡣࠊᮏ◊✲ࡢせᡤ ࠾࠸࡚ࡈᣦᑟࠊࡈពぢࢆ㡬ࡁࡲࡋࡓࠋ῝ࡃឤㅰࢆ⏦ࡋୖࡆࡲࡍࠋ ᒱ㜧ᏛᕤᏛ㒊㛗࣭♫ᇶ┙ᕤᏛ⛉ භ㒓ᜨဴᩍᤵࠊᒱ㜧Ꮫࢭࢵࢺ࣐ࢿࢪ࣓ࣥࢺࢭࣥࢱ࣮ ὸ㔝ᖾ⏨ᐈဨᩍᤵࠊ࡞ࡽࡧ⩌㤿Ꮫ ᑠ⃝‶ὠ㞝ᩍᤵࡣࠊᐇ㦂ࡢᐇ࠾࠸࡚ከࡢᨭ ࢆ㡬ࡁࡲࡋࡓࠋ῝ࡃឤㅰࢆ⏦ࡋୖࡆࡲࡍࠋ ࡲࡓࠊᐇ㦂ࡢᐇ㝿ࡋ࡚ࡣࠊ➹⪅ࡀᡤᒓࡋࡓ」ྜᵓ㐀◊✲ᐊࡢ Ha Duy Nhi ྩࠊᖹᒾಟேྩ ࢆึࡵࡍࡿ◊✲ᐊࡢⓙᵝከ࡞ࡿࡈᨭࢆ㡬ࡁࡲࡋࡓࠋᚰࡼࡾឤㅰࢆ⏦ࡋୖࡆࡲࡍࠋ ᭱ᚋࠊᖖᨭ࠼࡚ࡃࢀࡓᐙ᪘ᚰࡼࡾឤㅰࡋࡲࡍࠋ 98 Ⓨ⾲ㄽᩥ ༤ኈㄽᩥྵࡲࢀࡿㄽᩥ (1) ࿘Ἴ㸪Ha Duy Nhi㸪✄⇃၏ྐ㸪ෆ⏣⿱ᕷ㸸PVA ⧄⥔ࢆ⏝࠸ࡓ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪㸪⧄⥔⿵ᙉࢭ࣓ࣥࢺ⣔」ྜᮦࡢ᪂ࡋ࠸⏝ἲ㛵ࡍࡿࢩ࣏ࣥࢪ࣒࢘㸪 pp.303-310㸪᪥ᮏࢥࣥࢡ࣮ࣜࢺᕤᏛ㸪2012 (2) ࿘Ἴ㸪Ha Duy Nhi㸪ෆ⏣⿱ᕷ㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ㸪 ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟➨ 34 ᕳ㸪1 ྕ㸪pp.268-273㸪2012 (2)` B. Zhou and Y. Uchida: Fiber Orientation in Ultra High Performance Fiber Reinforced Concrete and its Visualization, VIII International Conference on Fracture Mechanics of Concrete and Concrete Structures, 2013 (3) ࿘Ἴ㸪Ha Duy Nhi㸪ෆ⏣⿱ᕷ㸸UFC ࣃࢿࣝ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆᙉᗘࡢ㛵ಀ㸪ࢥࣥࢡࣜ ࣮ࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.36㸪No.1㸪286-291㸪2014. (3)` B. Zhou and Y. Uchida: Relationship between fiber orientation and flexural strength in ultra-highperformance fiber-reinforced concrete panels㸪proceeding of 10th International Symposium on Innovation & Utilization of High-Performance Concrete(HPC-2014), Beijing, 2014. (3)`` B. Zhou and Y. Uchida: Relationship between fiber orientation and flexural strength in ultra-highperformance fiber-reinforced concrete panels㸦ᢞ✏‽ഛ୰㸧 (4) B. Zhou and Y. Uchida: Evaluation of fiber orientation in Ultra-High-Performance Fiber-Reinforced Concrete using visualization model concrete㸦ᢞ✏‽ഛ୰㸧 ༤ኈㄽᩥྵࡲࢀ࡞࠸ㄽᩥ (1) ࿘Ἴ㸪ᖹᒾಟே㸪ᑠ⃝‶ὠ㞝㸪ෆ⏣⿱ᕷ㸸ᗫ⎰⣽㦵ᮦࡼࡿ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ ⮬ᕫ⦰పῶຠᯝ㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.35㸪No.1㸪301-306㸪2013. (2) M.Ozawa, Z. Bo, Y. Uchida, H. Morimoto㸸Preventive Effects of Fibers on Spalling of UFC at High Temperatures, Journal of Structural Fire Engineering,2014 (Acceptance) (3) M.Ozawa, Z. Bo, J. Kawaguchi and Y. Uchida : Preventive effect on spalling of UFC using jute fiber at high temperature, Concrete Spalling due to Fire Exposure: Proceedings of the 3rd International Workshop, Paris, France, September 25-27, 2013, P. Pimienta and F. Meftah (Eds.), MATEC Web of Conferences, Vol. 6 (2013), 02006-p.1㹼p.7 (4)M.Ozawa㸪B.Zhou㸪Y. Uchida㸪H. Morimoto: Preventive Effects of Different Types of Fibers on UFC Spalling at High Temperatures㸪Proceedings of 7th International Conference on Structures in Fire㸪 M. Fontana㸪 A. Frangi㸪 M. Knobloch (Eds.)㸪 747-755㸪 Zurich(Switerland)㸪 (5) Nguyen Khanh Thy㸪࿘Ἴ㸪᳃ៅஓ㸪ෆ⏣⿱ᕷ㸸࣑ࣛࢻ⧄⥔ࢆ⏝࠸ࡓ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥ ࣥࢡ࣮ࣜࢺࡢຊᏛ≉ᛶ㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.33㸪No.1㸪233-238㸪2011. (6) Davaajav Munkhtsaral㸪ᑠ⃝‶ὠ㞝㸪࿘Ἴ㸪ෆ⏣⿱ᕷ㸸ኳ↛⧄⥔ࢆ㐺⏝ࡋࡓ㉸㧗ᙉᗘࢥࣥࢡࣜ ࣮ࢺࡢ⇿ᢚไຠᯝ㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.36㸪No.1㸪1330-1335㸪2014. (7) ᕝཱྀ₶㸪ᑠ⃝‶ὠ㞝㸪࿘Ἴ㸪ෆ⏣⿱ᕷ㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ⇿ᢚไຍ⇕ᚋ ࡢṧᏑᙉᗘ㛵ࡍࡿ᳨ウ㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.35㸪No.1㸪1153-1158㸪2013. 99 ࡑࡢࡢⓎ⾲ (1) ࿘Ἴ㸪 Ọ♸, ෆ⏣⿱ᕷ: ᗫ⎰ࢆ⏝࠸ࡓ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ⮬ᕫ⦰≉ᛶ, ᅵ ᮌᏛᖹᡂ 26 ᖺᗘᅜ➨ 69 ᅇᖺḟᏛ⾡ㅮ₇ᴫせ㞟㸪CD-ROM (2) ᖹᒾಟே㸪࿘Ἴ㸪㹆a Duy Nhi㸪ෆ⏣⿱ᕷ㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ⧄⥔ࡢ㓄ྥ㛵 ࡍࡿ◊✲㸪ᅵᮌᏛᖹᡂ 26 ᖺᗘᅜ➨ 69 ᅇᖺḟᏛ⾡ㅮ₇ᴫせ㞟㸪CD-ROM (3) ࿘Ἴ㸪 Nguyen Khanh Thy, Ha Duy Nhi㸪ෆ⏣⿱ᕷ: ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ⮬ᕫ ⦰≉ᛶ㛵ࡍࡿ◊✲, ᅵᮌᏛᖹᡂ 25 ᖺᗘᅜ➨ 68 ᅇᖺḟᏛ⾡ㅮ₇ᴫせ㞟㸪CD-ROM (4) ෆ⏣⿱ᕷ㸪࿘Ἴ,ᖹᒾಟே㸪Ha Duy Nhi㸸 ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢᘬᙇ≉ᛶ⧄⥔ ࡢศᩓ࣭㓄ྥࡢ㛵ಀ㛵ࡍࡿ᳨ウ㸪ᅵᮌᏛᖹᡂ 25 ᖺᗘᅜ➨ 68 ᅇᖺḟᏛ⾡ㅮ₇ᴫせ 㞟㸪CD-ROM (5) ࿘Ἴ㸪Ha Duy Nhi㸪ෆ⏣⿱ᕷ㸸PVA ⧄⥔ࢆ⏝࠸ࡓ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ≉ᛶ㸪ᅵ ᮌᏛᖹᡂ 24 ᖺᗘᅜ➨ 67 ᅇᖺḟᏛ⾡ㅮ₇ㅮ₇ᴫせ㞟㸪CD-ROM 100