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Shear Behavior of RC むular Members

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Shear Behavior of RC むular Members
1
3
5
愛知工業大学研究報告
第 34号 B 平 成 1
1年
Shear B
e
h
a
v
i
o
r o
f RC
円形断面を有する
u
l
a
r Members
む
RC部材のせん断挙動
Hongxing免IU
, KazuoYA
l
V
L
ADA, Y
a
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ロ
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十 中国東南大学土木工学科(中国南京)
I 愛知工業大学工学部建築学科(豊田市)
士十愛知工業大学大学院建設システム工学専攻
a
p
p
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rmembers. The d
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a
l comp
r
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i
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s proposed by
3
Wagner) i
n 1929 t
os
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yt
h
ep
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bucking s
h
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r r
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田 s
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I
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r by t
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r
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e can
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r
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i
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compressionf
i
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s a photographo
ft
h
et
e
s
t
F
i
g,li
s
e
c
t
i
o
no
far
e
i
n
f
o
r
c
e
dc
o
n
c
r
e
t
ec
i
r
c
u
l
a
r
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c
h
i
member t
e
s
t
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d i
n s
h
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ra
t A
I
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t
e o
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e
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h
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o
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o
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y
. Themag回
1
3
6
愛知工業大学研究報告,第 34号 B,平成 1
1年
, Vo
l
.34
・
B,
Mar.1999
n
i
t
u
d
e
so
ft
h
ea
p
p
l
i
e
dl
o
a
d
sf
o
rt
h
i
s
member were a
r
r
a
n
g
e
ds
ot
h
a
tt
h
e
momentwasz
e
r
oa
tt
h
em
i
d
p
o
i
n
to
f
t
h
et
e
s
tr
e
g
i
o
n
.
s
i
o
ni
nc
o
n
c
r
e
t
e
; Rm=
e
f
f
e
c
t
i
v
er
a
d
i
u
s
,i
s taken from
o
fc
i
r
c
u
l
a
rs
e
c
t
i
o
n
i
n
t
e
r
n
a
ls
i
d
eo
fs
t
i
r
r
u
p
s
;
σ
c
=
a
v
e
r
a
g
e
c
o
n
c
r
e
t
es
t
r
e
s
si
nd
i
a
g
o
n
a
l c
o
m
p
r
e
s
s
i
o
nd
i
r
e
c
t
i
o
n
.
級建務d
F
i
g
.1 C
i
r
c
u
l
a
rs
e
c
t
i
o
nspecimen
Wew
i
l
lo
n
l
yc
o
n
s
i
d
e
rt
h
es
e
c
t
i
o
n
1
e
x
u
r
a
lmoment
wheret
h
ee
f
f
e
c
t
so
ff
and d
i
s
t
u
r
b
a
n
c
e
so
fp
o
i
n
tl
o
a
d
sa
r
e
,
t
h
ee
f
f
e
c
t
so
f
a
x
i
a
l
n
e
g
l
i
g
i
b
l
e
.However
l
o
a
dw
i
l
lb
ed
i
s
c
u
s
s
e
df
i
n
a
l
l
y
.
Due t
ot
h
ec
r
a
c
k
sc
o
n
s
i
d
e
r
a
b
l
e
v
a
r
i
a
t
i
o
n
s w
i
l
l
'a
r
i
s
ei
nt
h
el
o
c
a
l
s
t
r
a
i
n
s
(
h
e
n
c
es
t
r
e
s
s
e
s
)o
famember.
Rather than t
r
y
i
n
gt
o d
e
a
lw
i
t
h
v
a
r
i
a
b
l
el
o
c
a
ls
t
r
a
i
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t
r
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s
s
e
s,
we
w
i
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lc
o
n
s
i
d
e
ro
n
l
yt
h
ea
v
e
r
a
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e s
t
r
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i
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s
ands
t
r
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s
s
e
s
.
2
.E
q
u
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o
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i
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menti
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r
t
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i
r
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c
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o
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o
rt
h
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r
e
e
bodyshowni
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i
g
.
2
.
I
fwei
g
n
o
r
et
h
ed
o
w
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o
r
c
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tt
h
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t
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nmustbecarηbyc
o
n
c
r
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t
e,
t
h
a
ti
s
r
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、、,,
、
、
盟
,
,
,
E
.
Q=~sinα
where Q=shear force;α=angle o
f
d
i
a
g
o
n
a
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o
m
p
r
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s
s
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o
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s
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r
e
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l
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o
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o
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ebody
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;
D
e
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s nominal
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q
.
(
l
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s
h
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rs
t
r
e
s
s
.Thus,
τ
σc=_
:
_.
__
_
_.
_
s
幻m
α
c
o
s
α
(
l
a
C
o
n
s
i
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r
t
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q
u
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i
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o
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e
r
t
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i
r
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t
i
o
nf
o
rt
h
e
i
n
c
l
i
n
e
d s
e
c
t
i
o
n shown i
n F
i
g
.
3
.
,wei
g
n
o
r
et
h
edowelf
o
r
c
eo
f
S
i
m
i
l
a
r
l
y
.F
u
r
t
h
e
r
,i
ft
h
e
t
h
el
o
n
g
i
t
u
d
i
n
a
ls
t
e
el
a
g
g
r
e
g
a
t
ei
n
t
e
r
l
o
c
ko
fc
r
a
c
k
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e
c
t
i
o
n
i
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g
n
o
r
e
d
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l
lo
ft
h
es
h
e
a
rf
o
r
c
ea
tt
h
e
s
e
c
t
i
o
n must b
ec
a
町 y b
ys
t
i
r
r
u
p
s
.
Because t
h
ed
i
r
e
c
t
i
o
no
ff
o
r
c
ei
n
宜e
r
e
n
tl
o
c
a
t
i
o
ni
s v
a
r
i
a
b
l
e, t
h
e
d
i
i
n
t
e
g
r
a
li
sn
e
e
d
e
d
. The s
t
i
r
r
u
p
sa
r
e
e
q
u
i
v
a
l
e
n
t t
o u
n
i
f
o
r
m s
t
r
e
s
s
e
s,
α
w
σs/x(αw=areao
fs
t
i
r
r
u
p
;x
=
s
p
a
c
i
n
g
=
s
t
r
e
s
so
fs
t
i
r
r
u
p
s
)
.
o
fs
t
i
r
r
u
p
s
;
σ,
Thus
皇
子
位 cosθ
Q=2C;
(
2
)
I
t i
s n
o
t
e
dt
h
a
tt
h
e e
q
u
a
t
i
o
nf
o
r
1
3
7
ShearBehavioro
fRCC
i
r
c
u
l
a
rMembers
i
n
t
e
r
s
e
c
t
i
n
gl
i
n
eo
fc
yl
i
n
d
e
r and i
n
c
l
i
n
e
dp
l
a
n
e, z=Rmc
o
t
α
s
i
n
θ S
u
b
s
t
i
t
u
t
i
n
gd
z=R
mc
o
t
α ∞sedθintoE
q
.
(
2
),by
i
n
t
e
g
r
a
l
,
oneo
b
t
a
i
n
s
固
assumptioni
sshowni
nF
i
g.
4
.
園
m
α一α
q叫一円﹂
恒
一
σ
τ一 W
2
一P
一
一
(
2a
)
・
ぷ lぷ
}内
aA叩lit--?L
where Pw=2awI
x
R
mi
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