《重力坝设计例题-荷载计算(可以考)》由会员分享，可在线阅读，更多相关《重力坝设计例题-荷载计算(可以考)（11页珍藏版）》请在金锄头文库上搜索。
1、重力坝设计例题三、计算实例大坝实用剖面图荷荷载载计计算算简简图图坝体自重计算坝体自重计算静水压力静水压力泥沙压力泥沙压力浪压力计算浪压力计算扬压力计算扬压力计算坝体自重计算WW1 1=1/22421210.21=1058.4(kN)=1/22421210.21=1058.4(kN)力臂力臂= =2828.56/2.56/22/3210.2=11.48(m)2/3210.2=11.48(m)坝顶宽度坝顶宽度=(34.8=(34.828.8)0.7=4.2(m)28.8)0.7=4.2(m)坝基宽度坝基宽度=34.80.7+210.2=34.80.7+210.2=2828.56(m).56(m)力
2、矩力矩=1058.411.48=12150.432(kN=1058.411.48=12150.432(kN m)m)WW2 2=244.234.81=3507.84(kN)=244.234.81=3507.84(kN)力臂力臂= =2828.56/2.56/2210.2210.24.2/2=7.98(m)4.2/2=7.98(m)力矩力矩=3507.847.98=27992.563(kN=3507.847.98=27992.563(kN m)m)WW3 3=1/22428.828.80.71=6967.296(kN)=1/22428.828.80.71=6967.296(kN)力臂力臂= =2
3、828.56/2.56/228.80.72/3=0.84(m)28.80.72/3=0.84(m)力矩力矩= =6967.2960.84=6967.2960.84=5852.529(kN5852.529(kN m)m)回计算简图静水压力计算P PH1H1=1/29.8133331=5341.545(kN)=1/29.8133331=5341.545(kN)力臂力臂=1/333=11.0(m)=1/333=11.0(m)力矩力矩= =5341.54511.0=5341.54511.0=58756.995(kN58756.995(kN m)m)P PH2H2= =1/29.812.12.11=1/
4、29.812.12.11=21.631(kN)21.631(kN)力臂力臂=1/32.1=0.7(m)=1/32.1=0.7(m)力矩力矩=21.6310.7=15.142(kN=21.6310.7=15.142(kN m)m)P PV1V1=9.81(33=9.81(3321)210.2=494.424(kN)21)210.2=494.424(kN)力臂力臂= =2828.56/2.56/2210.2/2=12.18(m)210.2/2=12.18(m)力矩力矩=494.42412.18=6022.084(kN=494.42412.18=6022.084(kN m)m)P PV2V2=1/2
5、9.8121210.2=432.621(kN)=1/29.8121210.2=432.621(kN)力臂力臂= =2828.56/2.56/2210.2/3=12.88(m)210.2/3=12.88(m)力矩力矩=432.62112.88=5572.158(kN=432.62112.88=5572.158(kN m)m)P PV3V3=1/29.812.12.10.7=15.142(kN)=1/29.812.12.10.7=15.142(kN)力臂力臂= =2828.56/2.56/22.10.7/3=13.79(m)2.10.7/3=13.79(m)力矩力矩= =15.14213.79=1
6、5.14213.79=208.805(kN208.805(kN m)m)回回计计算算简简图图回回计计算算简简图图泥沙压力计算泥沙压力计算P PsHsH=1/26.511.111.1tan=1/26.511.111.1tan2 2(45(4518/2)=211.374(kN)18/2)=211.374(kN)力臂力臂=1/311.1=3.7(m)=1/311.1=3.7(m)力矩力矩= =211.3743.7=211.3743.7=782.084(kN782.084(kN m)m)P PsVsV=1/26.511.111.10.2=80.087(kN)=1/26.511.111.10.2=80.
7、087(kN)力臂力臂=28.56/2=28.56/211.10.2/3=13.54(m)11.10.2/3=13.54(m)力矩力矩=80.08713.54=1084.378(kN=80.08713.54=1084.378(kN m)m)回计算简图浪压力计算计算风速计算风速V V0 0=1.512=18(m/s)=1.512=18(m/s)，D=900(m)D=900(m)h hL L=0.59(m)=0.59(m)，L Lmm=6.88(m)=6.88(m)由于由于gD/VgD/V0 02 2=27.25=27.25，h hL L=h=h5%5%，h h1%1%=1.241h=1.241h
8、5%5%=0.737=0.737，h hZ Z=0.248=0.248。H Hcrcr=0.89=0.89，H=33H=33HcrHcr，且，且HLHLmm/2/2，深水波深水波P PL L=1/49.816.88(0.737=1/49.816.88(0.737+0.248)=16.62(kN)0.248)=16.62(kN)力矩力矩= =16.6233=16.6233=548.36(kN548.36(kN m)m)回回计计算算简简图图扬压力计算扬压力计算U U1 1= =9.812.128.561=9.812.128.561=588.365(kN)588.365(kN)力臂力臂=0(m)=0
9、(m)力矩力矩=0(kN=0(kN m)m)U U2 2= =9.816.90.25(339.816.90.25(332.1)=2.1)=522.898(kN)522.898(kN)力臂力臂=28.56/2=28.56/26.9/2=10.83(m)(m)力矩力矩= =5662.98(kN(kN m)m)U U3 3= =9.811/2(28.569.811/2(28.566.9)0.25(336.9)0.25(332.1)=2.1)=820.722(kN)820.722(kN)力臂力臂=2/3(28.56=2/3(28.566.9)6.9)28.56/228.56/2=0.16(m)(m)力
10、矩力矩= =131.32(kN(kN m)m)U U4 4= =9.811/26.99.811/26.9(10.25)(330.25)(332.1)=2.1)=784.346(kN)784.346(kN)力臂力臂=28.56/2=28.56/21/36.91/36.9=11.98(m)(m)力矩力矩= =9487.70(kN(kN m)m)荷载作用标准值作用设计值力臂(m)弯矩标准值(kNm)弯矩设计值(kNm)垂直荷载(kN)水平荷载(kN)垂直荷载(kN)水平荷载(kN)自重W11058.401058.4011.4812150.4312150.43W23507.843507.847.982
11、7992.5627992.56W36967.306967.30-0.84-5852.53-5852.53水平水压力PH15341.555341.55-11.00-58757.00-58757.00PH2-21.63-21.63-0.7015.1415.14垂直水压力PV1494.42494.4212.186022.086022.08PV2432.62432.6212.885572.165572.16PV315.1415.14-13.79-208.80-208.80泥沙压力Psv80.0980.0913.541084.371084.37PsH211.37253.65-3.70-782.08-93
12、8.50浪压力PL16.6219.94-33.00-548.36-658.04扬压力浮托力U1-588.36-588.360.000.000.00渗透压力U2-522.90-627.4810.83-5662.98-6795.58U3-820.72-984.870.16-131.32-157.58U4-784.35-941.2211.98-9396.47-11275.769839.485547.909413.895593.50-28502.79-31807.03WKPKWRPRMKMR设设计计洪洪水水位位情情况况荷载作用标准值作用设计值力臂(m)弯矩标准值(kNm)弯矩设计值(kNm)垂直荷载(
13、kN)水平荷载(kN)垂直荷载(kN)水平荷载(kN)自重W11058.401058.4011.4812150.4312150.43W23507.843507.847.9827992.5627992.56W36967.306967.30-0.84-5852.53-5852.53水平水压力PH15838.185838.18-11.50-67139.03-67139.03PH2-53.42-53.42-1.1058.7658.76垂直水压力PV1556.23556.2312.186774.846774.84PV2432.62432.6212.885572.165572.16PV337.3937.3
14、9-13.51-505.15-505.15泥沙压力Psv80.0980.0913.541084.371084.37PsH211.37253.65-3.70-782.08-938.50浪压力PL6.517.81-34.50-224.51-269.41扬压力浮托力U1-924.57-924.570.000.000.00渗透压力U2-527.97-633.5710.83-5717.96-6861.55U3-828.69-994.430.16-132.59-159.11U4-791.96-950.3511.98-9487.70-11385.249566.666002.649136.946046.22-36208.42-39477.38WKPKWRPRMKMR校核洪水位情况
