埋地钢管结构计算

埋地钢管的结构计算参考《给水排水工程埋地钢管管道结构设计规程》1.基本资料18001)材料性能Ep(kN/m2)En(kN/m2)Ee(kN/m2)Ee/EnBr(m)Br/d1ξEd(kN/m2)2.06E+085.00E+033.00E+030.60105.461.023.06E+03f(N/mm2)αrs(kN/m3)rst(kN/m3)rw(kN/m3)νpνs2151.20E-051978.5100.30.4A3钢2)几何参数a(m)b(m)b0(m)t(m)D(m)设计地面高程(m)管中心高程(m)Ip(m4)0.20.610.0161.818.6114.160.001167D1(m)D0(m)r0(m)r1(m)t0(m)管顶高程(m)Hs(m)设计外水位(m)1.8321.8160.9080.9160.01415.0763.53415.283)计算系数rG1rG,svrGwrGsRq1.21.271.21.271.4包角kgmkvmkwmkb900.1020.1570.1020.096DLηγ0ψψc1.250.910.850.9nKstKfDL221.11.52.荷载计算1)钢管自重G1k(kN/m)7.162)竖向土压力Fsv,k(kN/m)123.013)管内水重Gwk(kN/m)25.434)设计内水压力Fwd,k(kN/m2)150.00Fwk(kN/m2)100.005)真空压力Fvk(kN/m2)50.006)地面堆荷载qmk(kN/m2)10.00ψq0.57)地面车辆荷载qvk(kN/m2)4.12两量汽-20Qvk(kN)μdz(m)n(轮个数)d1(m)d2(m)d3(m)ψq后轮着地6513.53441.81.31.80.58)地下水浮托力Ffw,k(kN/m2)20.363.强度计算工况1地面汽车荷载N(kN)分子分母M(kN.m)σθ(kN/m2)ησθ(N/mm2)171.6123.163.975.84191024.20171.92OK！！！工况2地面堆积荷载N(kN)分子分母M(kN.m)σθ(kN/m2)ησθ(N/mm2)171.61224.813.976.25203708.74183.34OK！！！管壁的纵向应力σx(N/mm2)138.98-20.56△T°c25最大组合折算应力σ1(N/mm2)162.25最大组合折算应力σ2(N/mm2)193.26γ0σ193.26OK！！！4.稳定验算工况1地面汽车荷载(kN/m2)242.54OK！！！工况2地面堆积荷载(kN/m2)254.29OK！！！Fcr,k(kN/m2)673.935.抗浮计算∑FGK(kN/m)130.178)地下水浮托力Ffw,k(kN/m)37.30kf3.49OK！！！6.刚度验算工况1地面汽车荷载ωd,max(mm)0.057OK！！！工况2地面堆积荷载ωd,max(mm)0.079OK！！！ψ0.035ΨD0(mm)63.560tDGstk011,DHFssksv4/2DGwwk11)4.1)(4.1(niivkvkzdnbzaQnqd00,brFNkwdQc300001,,11)(732.01)(trEEbrDqkGkFkGkMpdikvmcQwkwmGwksvvmsvGkgmG200006tbMtbNTEpQcpxxx22ff0)/(1,,vkikksvstkcrFqDFKF)1)(1(2)()1(3)1(223022,sdppkcrnEDtnEFfkfwGKKFF,/)061.0(30)1,30max,rEIEDqFrKDdppikqksvbLd0max,Dd206090120150管道自重kgm0.2020.1340.1020.0830.077竖向土压力kvm0.2550.1890.1570.1380.128管内水重kwm0.2020.1340.1020.0830.077变形系数竖向压力kb0.1090.1030.0960.0890.085项目弯矩系数最大弯矩系数和竖向变形系数土弧基础中心角