ĳּܼ̽  
1
1ʩۼʽֹּܽܰȫ淶JGJ130-2001
2ṹع淶GB50009-2001
3ͼֽϵ
2ּܵļ
߶H=39.6ףȡ߶ȣ22ţh=1.8ףݾla=1.5ף˺lb=1.1ףǽΪ23ãְΪëƬͬʱ7ż㣬ͬʱҵn1=1
ּܲѡæ483.5ֹܣA=489mm2ģW=5.08103 mm3ת뾶i=15.8mmѹǿֵf=205N/mm2ѹֵ0=0.7 kN/m2ʱѩصȡ
3ر׼ֵ
1 ṹر׼ֵgk1=0.1248kN/m    ˫Žּܣ
2 Ƭر׼ֵgk2=0.35kN/m2  ɰʵȡֵ
3 ʩأqk=3 kN/m2
4 ر׼ֵk=0.7zs0
ʽ  zѹ߶ȱ仯ϵ顶ṹع淶
ò뷨39.6Ϊ1.12
sּܷϵȫʽΪ1.2
0ѹֵΪ0.7 kN/m2
k=0.71.121.20.7=0.658 kN/m2
4ˮƽˡˮƽ˼
ּܴͼ£
1 ˮƽ˼
֧㣬ͼ£
ÿݾƬNG2k=gk2lalb=0.351.51.1=0.5775 kN
ÿݾʩNQk=qklalb =31.51.1=4.95 kN
MGk=  kNm
MQk=  kNm
M=1.2MGk+1.4MQk=1.20.07+1.40.605=0.931 kNm
<f=205 kN/mm2
ˮƽ˿ǿҪ
[v]=lb/150=1100/150=7.3 mm
v<[v] ˮƽӶҪ
2 ˮƽ˼
㣬ͼ£
ƬؾG2k=gk2lb/3=0.351.1/3=0.128 kN/m
ʩQk=qklb/3=31.1/3=1.1 kN/m
q=1.2G2k+1.4Qk=1.69 kN/m
MGk max=0.10G2kla2=0.100.1281.51.5=0.029 kNm
MQk max=0.10Qkla2=0.101.11.51.5=0.248 kNm
M=1.2MGk max+1.4MQk max=1.20.029+1.40.248=0.382 kNm
<f=205 kN/mm2
ǿҪ
[v]=lb/150=1500/150=10 mm
v[v] ӶҪ
3 ˮƽӵĿۼ
ˮƽ˴˵
R=(1.2NG2k+1.4NQk)/2=(1.20.5775+1.44.95)/2=3.812 kN
Rc=8.00 kN
RRc    ۼҪ
5˼

N=1.2(NG1k+ NG2k)+0.851.4NQk
=1.2(Hgk1+7gk2lalb/2)+0.851.4n1qklalb/2
=1.2(39.60.1248+70.351.11.5/2)
+0.851.4131.11.5/2
=11.3 kN
kNm
ϸȣ 
ʽ  kȡ1.155
JGJ130-20015.3.3ò뷨u=1.51
JGJ130-2001¼CC =0.182
N/mm2f=205 N/mm2
ȶҪ
6ǽ㣨ã
Nlw=1.4kAw=1.40.65821.831.5=14.92 kN
Nl=Nlw+N0=14.92+5=19.92 kN
Nl>Rc
ۼҪ󣬲õ纸
ע淶㣬ǽӲÿۼģȫ޷Ҫ
߶ȡh=4mmǿֵ=170N/mm2
쳤L= 29.3 mm
ȡ쳤ȴڵ50mm쳤Ҫ
7˵ػ
fg
ʽ   ˻ƽѹ 
Nֵ11.3 kN
A
fgػֵԭػΪճfg=kcfgk
kcּܵػϵճȡ0.5
fgkػ׼ֵ鹤̵ʱΪ85kPa
A=  m2  <[A]=1.51.1/2=0.825 m2 
ݼ㣬ּܻ100C15Ƭ1200˵ػҪ
8Ҷ˳()  