埋地鋼管結(jié)構(gòu)計算

1、埋地鋼管的結(jié)構(gòu)計算,參考給水排水工程埋地鋼管管道結(jié)構(gòu)設(shè)計規(guī)程,1.基本資料,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鋼,2)幾何參數(shù),a(m),b(m),b0(m),t(m),D(m),設(shè)計地面高程(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),管頂高程(m),Hs(m),設(shè)計外水位(m),1.832,1.816,0.908,0.916,0.014,15.076,3.534,15.28,3)計算系數(shù),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.荷載計算,1

3、)鋼管自重G1k(kN/m),7.16 ,2)豎向土壓力Fsv,k(kN/m),123.01 ,3)管內(nèi)水重Gwk(kN/m),25.43 ,4)設(shè)計內(nèi)水壓力Fwd,k(kN/m2),150.00 ,Fwk(kN/m2),100.00 ,5)真空壓力Fvk(kN/m2),50.00 ,6)地面堆荷載qmk(kN/m2),10.00 ,q,0.5,7)地面車輛荷載qvk(kN/m2),4.12 ,兩量汽-20,Qvk(kN),d,z(m),n(輪個數(shù)),d1(m),d2(m),d3(m),q后輪著地,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.強度計算,工況1地面汽車荷載,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！,工況2地面堆積荷載,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！,管壁的縱向應(yīng)力 x(N/mm2),138.98 ,-20.56 ,Tc,25,最大組合折算應(yīng)力1(N/mm2),162.25 ,最大組合折算應(yīng)力2(N/mm2),193.26 ,0,193.26 ,OK！,4.穩(wěn)定驗算,工況1地面汽車荷載(kN/m2),242.54 ,OK！,工況2地面堆積荷載(kN/m2),254.29 ,OK！,Fcr,k(kN/m2),673.93 ,5.抗浮計算,FGK (kN/m),130.17 ,8)地下水浮托力Ffw,k(kN/m),37.30 ,kf,3.49 ,OK！,6.剛度驗算,工況1地面汽車荷載d