孔洞梁计算

1.孔洞一侧补强钢筋计算

基本数据输入

f yv =210f yd =

360b=V 1=

125α=35h=a=

35

f t =

1.43

f c =

计算结果

321

460

2.弦杆箍筋

基本数据输入

V=120M=

100β=

l h =

190230h h =

170

h c =265

h t =

中间数据

108.00164.4536

164.45

223当Nc 取

223

0.410.62

26.46<0取

==

yv V f V A 1

54.0=

=

α

sin 76.01

yd d f V A =

c h 0=

t

h

==V V C β

=

-=c t V V V 2.1=≤c

c

f bh 025.0=

≤c

t f

bh

25.0=

++=

t

h c

t h h h M

N 55.05.0=

>c c

f bh

3.0=

=c

h c h l 0/5.0λ=

=t h t h l 0/75.0λ=

=t t

t sv yv s h A f /0=

-+=

t t t

t N f bh V 2.00

.175.17.12.30t λ右=

c

N

计算结果

11.3

9.9

3.受压弦杆纵筋

1026046.020163.5

0.339

-1.39056

-149.9

4.受拉弦杆纵筋

17107.6791.915

500.7403

=

-+=

t t t

t N f bh V 2.00

.175.17.12.30t λ右=

+--=)/()0

.175.107.0(00c c

yv c t c c c c h f s f bh N V A sv

λ=

+-

+=)/()0

.175.12.0(00t t

yv t t t tc t t h f s f bh N V A sv λ=

=2/h c c l V M =

=c c c N M e /0=

a

e

=

-++=a h e e e c a c 5.00==

c c c

bh

f N 0

ξ55

.0=>b

ξ

==

c c c bh

f N 0

ξ=

---=)

()5.01(`0`2

02

a h f bh f e N A c

y c

c c s ξξ=

-+=a e h e t 0`45.0=

=h t t l V M 25.01=

=t t N M e /10=--=)

(''

3

a a h f e N A t y t s

20070014.3

0.90.55230s c =50265

s t =

50

23.68

227

=

=t t

t sv yv s h A f /0=

>t t f bh

036.0