埋地钢管结构计算

1、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,1800,1)材料性能,Ep(kN/m2),En(kN/m2),Ee(kN/m2),Ee/En,Br(m),Br/d1,Ed(kN/m2),2.06E+08,5.00E+03,3.00E+03,0.60 ,10,5.46 ,1.02,3.06E+03,f(N/mm2),rs(kN/m3),rst(kN/m3),rw(kN/m3),p,s,215,1.20E-05,19,78.5,10,0.3,0.4,A3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(m

2、4),0.2,0.6,1,0.016,1.8,18.61,14.16,0.001167,D1(m),D0(m),r0(m),r1(m),t0(m),管顶高程(m),Hs(m),设计外水位(m),1.832,1.816,0.908,0.916,0.014,15.076,3.534,15.28,3)计算系数,rG1,rG,sv,rGw,rGs,Rq,1.2,1.27,1.2,1.27,1.4,包角,kgm,kvm,kwm,kb,90,0.102,0.157,0.102,0.096,DL,0,c,1.25,0.9,1,0.85,0.9,n,Kst,Kf,DL,2,2,1.1,1.5,2.荷载计算,1

3、)钢管自重G1k(kN/m),7.16 ,2)竖向土压力Fsv,k(kN/m),123.01 ,3)管内水重Gwk(kN/m),25.43 ,4)设计内水压力Fwd,k(kN/m2),150.00 ,Fwk(kN/m2),100.00 ,5)真空压力Fvk(kN/m2),50.00 ,6)地面堆荷载qmk(kN/m2),10.00 ,q,0.5,7)地面车辆荷载qvk(kN/m2),4.12 ,两量汽-20,Qvk(kN),d,z(m),n(轮个数),d1(m),d2(m),d3(m),q后轮着地,65,1,3.534,4,1.8,1.3,1.8,0.58)地下水浮托力Ffw,k(kN/m2)

4、,20.36,3.强度计算,工况1地面汽车荷载,N(kN),分子,分母,M(kN.m),(kN/m2),(N/mm2),171.61 ,23.16 ,3.97 ,5.84 ,191024.20 ,171.92 ,OK！,工况2地面堆积荷载,N(kN),分子,分母,M(kN.m),(kN/m2),(N/mm2),171.612,24.81 ,3.97 ,6.25 ,203708.74 ,183.34 ,OK！,管壁的纵向应力 x(N/mm2),138.98 ,-20.56 ,Tc,25,最大组合折算应力1(N/mm2),162.25 ,最大组合折算应力2(N/mm2),193.26 ,0,193.26 ,OK！,4.稳定验算,工况1地面汽车荷载(kN/m2),242.54 ,OK！,工况2地面堆积荷载(kN/m2),254.29 ,OK！,Fcr,k(kN/m2),673.93 ,5.抗浮计算,FGK (kN/m),130.17 ,8)地下水浮托力Ffw,k(kN/m),37.30 ,kf,3.49 ,OK！,6.刚度验算,工况1地面汽车荷载d