25m箱梁方量计算表

（五里墩大桥）

Smax=1.312m2，Smin=1.123m2

V等截面20.6m= Smin×20.6=1.123×20.6=23.134 m3 V渐变段=（1.312+1.123）÷2×1.5=1.826 m3

V大体=23.134+1.826×2-2×（0.8×1.1+0.8×0.7）×0.18-4×π×0.12÷4×0.18=26.273 m3

V端头=[0.981×（87.5÷2+32.5）÷1000+0.092×0.12÷2]×2=0.16 m3 V端头0.4m= Smax×0.4=1.312×0.4×2=1.06 m3 V= V大体+ V端头+ V端头0.4m=27.493 m3

V跨中横梁（预制部分）=(1.068+0.526)×0.2=0.319 m3 V实际=27.493+0.319=27.812 m3

25m中跨中梁砼方量计算

（五里墩大桥）

Smax=1.21m2，Smin=1.021m2

V等截面20.6m= Smin×20.6=1.021×20.6=21.033 m3 V渐变段=（1.21+1.021）÷2×1.5×2=3.347 m3

V大体=21.033+3.347-2×（0.8×1.1+0.8×0.7）×0.18-4×π×0.12÷4×0.18=23.856 m3

V端头=[0.878×（87.5÷2+32.5）÷1000+0.092×0.12÷2]×2=0.145 m3 V端头0.4m= Smax×0.4×2==1.21×0.4×2=0.968 m3 V= V大体+ V端头+ V端头0.4m=24.969 m3

V跨中横梁（预制部分）=(1.068+0.526×2)×0.2=0.424 m3 V实际=24.969+0.424=25.393 m3

25m边跨边梁砼方量计算

（五里墩大桥）

Smax=1.312m2，Smin=1.123m2

V等截面20.72m= Smin×20.72=1.123×20.72=23.259 m3 V渐变段=（1.312+1.123）÷2×1.5=1.826m3

V大体=23.259+1.826×2-（0.8×1.1+0.8×0.7）×0.18-4×π×0.12÷4×0.18=26. m3

V端头(桥台段)=1.793×0.25+2.918×0.25-0.35×0.24×2.85 =0.936m3 V端头(连续段)=(0.16+1.06)÷2 =0.61m3

V= V大体+ V端头=26.+0.936+0.61=28.186 m3 V跨中横梁（预制部分）=(1.068+0.537)×0.2=0.321 m3 V实际=28.186+0.321=28.507 m3

25m边跨中梁砼方量计算

（五里墩大桥）

Smax=1.21m2，Smin=1.021m2

V等截面20.72m= Smin×20.72=1.123×20.72=21.155 m3 V渐变段=（1.21+1.021）÷2×1.5=1.673m3

V大体=21.155+1.673×2-（0.8×1.1+0.8×0.7）×0.18-4×π×0.12÷4×0.18=24.236 m3

V端头(桥台段)= 2.279×0.25+3.156×0.25-0.35×0.24×2.4=1.157m3 V端头(连续段)=(0.145+0.968)÷2=0.557 m3 V= V大体+ V端头=24.236+1.157+0.557=25.950m3 V跨中横梁（预制部分）=(1.068+0.538+0.529 )×0.2=0.427m3 V实际=25.950+0.427= 26.377 m3

25m预制箱梁混凝土方量统计表

设计值 计算值 差值

中跨边梁 24.2 27.493 3.293 中跨中梁 21.7 24.969 3.269 边跨边梁 25.1 28.186 3.561 边跨中梁 22.7 25.950 2.972