-
/ / , 31 2012
7:
..
-
7:
1. (, )
.
2. (, ) , .
3. (, ) (. 9)
-
- F-
, , :
, , ( Vu , y =MVu=VuLs )
: V
y
yFK
d=
Fy
Fres ( )
y
u
, Fu=Fy
F
-
:
K0 ( K5%Ko )
:
( F/m
-
&
( , , ,
):
.
(, , , ):
.
-
, EI ( )
EI:
2000, 8: ~50% . .
50% :
- ( ),
- - ( ).
& E y:
EI=MyLs/3y :
.
y
yFK
d=
Fy
Fres ( )
y
u
, Fu=Fy
F
-
:
H , .
: ( )
: EI = MyLs/3y :
-
Ls=M/V: (~L/2 , ~Htot/2 ) y: ( ) h : fy, fc: MPa db: 1 : ,
z~0.9d, : VR,c< My/Ls 3 :
, :
:
-
& ( b, d)
= 112111
2
311
61
2315.0
2dd
d
d
Vyy
syy
cy
y EE
bd
M
dE
f
d yc
c
y
cy
8.1=
dEf
ys
y
y
=1
ABAy =2/122 2
y
v
y
vbdf
NB
bdf
NA == 112121 15.0, dd
:
1, 2 : , bd
v: , ~ 1, 2 , bd
d1=d1/d
:
- :
11212121 15.0,8.1
dd
== vc
v
sc
v Bbdf
N
bdE
NA
-
-
SdSd Rd SdSd y
SdSd (y+um)/2Rd
SdSd/m Rm
m=(y+um)/2Rdy
SdSd um/Rd
SdSd/m Rm
m=[um/Rd]/y
SdSd um/Rd
SdSd/m Rd
m = [um/Rd]/y
SdSd um
SdSd/m Rm
m = um/y
-
SdSd Rd SdE y
SdE um /1.3 SdSd/m Rm
m=[um/1.3]/y
(SdE um ) (SdSd/m Rm
m=um/y)
SdSd VRd
SdSd VRd
RdVCD VRd
SdSd VRd
RdVCD VRd
VCD VRd
VCD VRd
Sd , Sd, E : , . , . y, y : , . Rm, Rd (VRd): , (: -) . () .
VCD: . Rd=1.25 , =1.4 , =1.5 um: (). Rd=1.5 (1.8
plum), um/Rd: -
-
, ,
-
st: 0.016, st,pl: 0.0145 Tempcore wall: 1
, ': &
: N / bhfc (b: ; N>0 );
Ls/h : M/Vh: ,
: . :
sx: Ash/bwsh: // (x), d: .
1985: um pl
um=um-y 1.2 : um
plum=um-y 0.95
(0.95 /1.2 = 0.8).
=
cc
2i
c
h
c
h
hb6
b1
h2
s1
b2
s1
-
lo
, .
My, y , y: fy x lo/loy,min lo
-
&
lo > 15db
, .
My, y , y: fy
: um ( 0.95 1.2) (10+lo/db)/50 lo< 40db,
-
M
, : Vc & Vw .
pl=(-y) /y
Vw = wbwzfyw tot: h: x : Ac = bwd
0
1
1 2
F
-
M ()
. :
, (pl > 0), (pl = 0):
(Ls/h 2) (pl > 0):
: (tan=h/2Ls)
zbfh
L
fA
N
V
tot
cc
pl
wcs
maxR,
,2min(2.01)100,75.1max(25.01,15.0min(8.11,5min06.0185.0
=
2sin)100(45.0135.11,5min02.017
4wctot
cc
pl
maxR, zbffA
NV
=
-
-
-
( )
:
bc > bw cwcj hb b b 5.0;min = bc bw ccwj hb b b 5.0;min =
A (ybyc:
j=Vjv/bjhb
bn
b
stb
ybjhL
L
hzMV
11
rbqglbqg
nst
st
bc
ycjv VVh
h
LzMV ,,
, 2
111
rbqglbqg
nst
st
bc
ycjv VVh
h
LzMV ,,
, 2
111
-
=
ct
ctop
ct
ywjh
ctcrjf
f
f
ff
11
ct
ctop
ctcrjf
ff
= 1
: , j & , -topfc,
, fct.
vju: nfc (n=0.7-fc(MPa)/200: )
: , j & , -topfc, , -jhfyw:
, fct.
nnf
top
cjuj
= 1
-
(: , )
:
, ( -
, , ..),
8 ( 50%
)
, ,
( ), >25%
() .
,
-
: ME MIA / : V = Fcos, = 2/sin2.
wv: . 6
600
,
: ~ 15% . ~1.25 x . 6 ( 10-40% . , 15% . > 15mm) ~600 x . ,
~900 x
-
()
.
~
- < 20% .
- > 50%
- 2 ,
2 = .
2
-
A 2
-
,
2
. ( )
:
1. Takeda ( , )
2. EI = MyLs/3y
3. : = 25%
4. : 2 ( )
5. : ( 2 ).
6. :
,
, . .
.
( )
-
2 , (2 ) ELSA Ispra.
1. SPEAR
-
SPEAR 60
/
3.0 5.0
5.5
5.0
6.0
4.0
1.0
1.70
-
- 0.15g
-
- 0.15g: . & 2 & 3 ( : . :
) T Y
X
Y
-
(.-- )
-
0.25x0.25m 3 (2 0.6m ).
0.25x0.75m 2 ( ).
, .
0.2g 0.3g.
-
- 0.2g
-
0.2g: . 2 & 3 ( : . : )
Y-displacement
:post-ultimate strength degradation real T
X
Y
T
-
0.2g: (.-- )
-
2
.
( 0.25x0.25m 0.4x0.4m, 316/ , . 10/100mm).
0.2g 0.3g.
-
, 0.2g: . 2 & 3 ( : , : )
T
X
Y
-
, 0.2g:
-
2. (1999)
- 30 ,
-
.
& .
-
6-story building:
-
6-story building: Penthouse critical in flexure.
-
6-story building: Penthouse and upper stories columns of right
wing critical in shear, triggering collapse
