砼容重: 25 KN/m3 ,土容重: 18KN/m3 ,浮土重: 10KN/m3 ,池水密度: 10.5KN/m3 ,地下水位: -0.8m ,单桩承载力 2000KN (按照 1500 考虑) 一、水池自重计算 顶板自重( 200mm 厚): G1=LXBXh1XrC=34.2X21.2X0.20X25KN/m3=3625.2KN 池壁自重(
砼容重:
25 KN/m3
,土容重:
18KN/m3
,浮土重:
10KN/m3
,池水密度:
10.5KN/m3
,地下水位:
-0.8m
,单桩承载力
2000KN
(按照
1500
考虑)
一、水池自重计算
顶板自重(
200mm
厚):
G1=LXBXh1XrC=34.2X21.2X0.20X25KN/m3=3625.2KN
池壁自重(
600mm
厚):
G2=
{
(21.2+27.4)X2X6.5+(12+10)X5.5+19.2X4}X0.6X25
KN/m3=12444KN
水池底板自重(
800mm
厚):
G3=
23.2X36.2X0.8X25
KN/m3 =16796.8KN
柱子自重(
400*400
):
G4=12
(根)
X0.4X0.4X6.5X25 KN/m3=312KN
顶板梁自重(
250*500
):
G5=0.25X0.3X34.2X3
(排)
X25 KN/m3=192.375KN
Gc=G1+G2+G3+G4+G5=3625.2KN+12444KN+16796.8KN+312KN+192.375KN=33058.375KN
二、池内充满水时水重量
Gw={20X27.4X6.3+10.8X5X5.3+5X8X3.8}X10.5KN/m3=40851.3KN
三、外挑底板上覆土重
Gt=
(
23.2X36.2-21.2X34.2
)
X0.8mX18+{
(
28.6X2+23.2
)
X
(
6.5-1.1
)
+12X1X
(
5.5-1.1
)
+21.2X
(
4-1.1
)
}X
(
20-10
)
KN/m3=7137.52KN
四、基底板外挑以上地下水重量
Gs={
(
28.6X2+23.2
)
X
(
6.5-1.1
)
+12X1X
(
5.5-1.1
)
+21.2X
(
4-1.1
)
}X10KN/m3=5484.4KN
五、顶板活荷载作用
Gh=1.5KN/m2X33X20=990KN
六、基底压力
Pk
Pk=(Gc+Gw+Gt)/A=(33058.375KN+40851.3KN+7137.52KN)/36.2X23.2=96.5kN/m2
七、单桩承载面积
S=1500KN/96.5KN/m2=15.54m2
取桩间距为
3.5mX3.5m
,满足
6-8d
八、抗浮验算
整体抗浮验算:
抗浮力:
Gk=Gc+Gt=33058.375KN+7137.52KN=40195.895KN
浮力:
F={30.2X21.2X
(
6.5+0.8-1.1
)
+12X6X
(
5.5+0.8-1.1
)
+11.2X6X
(
4+0.8-1.1
)
}X10 KN/m2=45925KN
Gk/F=40195.895KN/34092KN =0.875
不满足要求。
九、局部抗浮
5.15X5.5柱
An =5.15X5=25.75m2
Gn =(0.8XAn+0.2XAn+0.4X0.4X6.5m)X25 KN/m3+(0.8X0.8-0.4X0.4)X0.4=674.166KN
Hd=6.5-1.1+0.8=6.2m
Gn/(rw*Hd*An)= 674.166/(10X6.2X25.75)=0.422
边壁:
An =3X1=3 m2
Gn=1X1X1.8X18KN/m3+1X1X4.4X10KN/m3+(0.7XAn+0.25X2X1+0.5X1X6.5m) X25 KN/m3=222.65KN
Hd=6.5-2.1+0.7=5.1m
Gn/(rw*Hd*An)=222.65/(10X5.1X13.8)=0.316
=========================================================请教各位大神、老师!这样计算有问题吗?整体、局部抗浮不满足,应该怎么调整?整体的话悬挑板增设毛石混凝土?局部呢?跪谢!!!