CECS141-2002给水排水工程埋地钢管管道结构设计规程.pdf-2020-10-12-23-19-28-994.docx 33页

'SpecificationforstructuraldesignofburiedsteelpipelineofwatersupplyandsewerageengineeringCECS141:20022003312 GBJ69849411GB50068GB50153GBJ6984[1986]1649CECS14120023.1.11.2.15.1.55.2.25.2.45.2.55.3.38.0.18.0.78.0.98.0.10CECS/TC17100045200212253 ...........................................................31.......................................................52....................................................53.......................................................73.1.................................................73.2.................................................84............................................84.1........................................84.2..............................................84.3................................95..................................................115.1................................................115.2...................................125.3...................................146...........................................146.1................................................146.2................................................167...................................................178...................................................17A.......19B......................................20...................................................224 11.0.11.0.21.0.3GB503321.0.41.0.5GB5026822.0.2FvkFfw,kFsv,kFwkFwd,kFtkG1kGwkqvkqmkωmax5 2.0.2EρEeEnEdfαγsνpνs2.0.3abb0D1D0Hsr0r1t1t02.0.4CG1CG,sv6 CGwCCCCCQ,wdQvQmQtQSDLkkkgmvmwmkbKsKstKfγγγγG1G,svGwGsγQψcψq33.13.1.1Q235GB/T7003.1.21GB/T51172GB/T149577 3.23.2.1GB500173.2.23.2.23.2.2EγpstανN/mm2kN/m3ρ2.0610578.51210-60.344.14.1.1124.1.24.1.34.1.44.24.2.1G1kγstπD0t4.2.1G1kkN/m8 D0mtmmγst3.2.24.2.2FγHDsv,kss14.2.2Fsv,kkN/mγskN/m3HsmD1m4.2.3γ3w10kN/m4.2.4GB500074.34.3.11Fwd,k=Fwk+0.54.3.1-1Fwd,k0.9FwkMPa2F=1.5Fwd,kwk4.3.1-2F4.3.2vk0.05MPaψq=04.3.3qmk10kN/m2ψq=0.59 4.3.414.3.4-1Qdvkqvk4.3.4-1(a1.4z)(b1.4z)QvkkNqkN/m2vkd4.3.4-1ambmzm4.3.4-1d(m)0.250.30.40.50.60.7d1.31.251.21.151.051.024.3.4-2ndQvkqvkn−14.3.4-2(a1.4z)(nb∑di1.4z)i1ndm10 3ψq=0.54.3.525ψq=1.04.3.610kN/m355.15.1.15.1.2125.1.35.1.4115202205.1.5Ks1.511 5.1.66.2.45.25.2.15.2.2γ0SR5.2.2γ0GB503321.11.01.00.9SR3.25.2.3SγCGγCFγCGγC∆sG1G11kG,svsvsv,kGwGwwkGsQs5.2.3ψγ(CFCqCqCF)cQQ,wdwd,kQvvKQmmkQttkγG11.2γγG,svGs1.27γGw1.2CCCG1G,svGwγQ1.4CCCCCQ,wdQvQmQtQsG1kkN/mFsv,k12 Fwd,kGwkqvkqmkFtk∆sψc0.95.2.4Kst2.05.2.5Kf1.15.2.65.2.65.2.6GwG1FFsv∆sFvfwFtFwdqvqm121113 25.35.3.15.3.2SdSCFCψqdG,svsv,kQqik5.3.2qqqikvkmk5.3.310.02D00.03D020.03D00.04D066.16.1.1ησθf6.1.1-1γ0σf6.1.1-2σθN/mm2σN/mm2η0.9f3.2.16.1.2σησ2σ2−σσ6.1.2θxθx14 σxN/mm26.1.3σθN6Mσθ26.1.3-1btbt0000NϕγFrb6.1.3-2cQwk,k00(γkGγkFγkGγψkqD)rbMϕG1gm1kG,svvmsv,kGwwmwkQcvmik1006.1.3-110.732Ed(γ0)3EPt0b0mmϕ0.71.0t0mmt0=t−2r0mmMNmmNNBEdN/mm2EpN/mm2kkkgmvmwmAD1mm6.1.4σxυpσθψcγQαEp∆Tσ∆6.1.4νpα∆Tσ∆15 6.26.2.1FK(Fq)cr,kstsv,kik6.2.1FN/mm2cr,kFN/mm2vkKst5.2.46.2.22−1)(tF2Ep(n)3Ed3(1−ν2)D2(n2−1)(1ν)cr,kp0sFncr,k2νs6.2.3∑FKFGkffw,k6.2.3∑FGkFfw,kKf5.2.54lKsFwd,kA(1−COSα)l6.2.4-1Ffk2Aπ(D−2t)6.2.4-2104Am2FkN/m2wd,kKs5.1.5FfkkN/m16 αF6.2.5fkKπγD(H1HD1)sγw(D−2t)26.2.5sss1Ss102324s0.250.477.0.1ωϕDd,max07.0.1ωd,maxD05.3.37.0.2ωd,maxDKr3(FψqD)Lb0sv,kqik1ω7.0.2d,max3EpIp0.061Edr0DL1.01.5KAbmm4Ip88.0.12mm8.0.212mm8.0.38.0.410.01D10.00521/417 2.5mm31200mm1mm1200mm2mm41.5mm5456GB502688.0.58.0.60.3mhd0.11+D8.0.6hdmDm8.0.70.98.0.88.0.98.0.1018 AAA206090120150kgm0.2020.1340.1020.0830.077kvm0.2550.1890.1570.1380.128kwm0.2020.1340.1020.0830.077kb0.1090.1030.0960.0890.08519 BB.0.1B.0.2EdEdξEeB.0.2EeMPaB.0.2-1BDEEξr1enB.0.2-2B.0.2-1MPa%859095100N63.54N1414N2424N505057102012%3571412%13510ωL50%)25%13510ωL50%)25%137110m10m23En4ωL50.075mm60.0752.0mm20 B.0.2-2ξBr/D11.52.02.53.04.05.0Ee/En0.13.062.041.631.401.171.050.22.501.831.521.341.151.040.41.801.351.351.241.111.030.61.431.291.211.151.071.020.81.181.181.091.071.031.011.01.001.001.001.001.001.001.50.730.780.820.860.930.982.00.570.640.70.760.860.952.50.470.540.610.680.810.933.00.400.470.540.610.760.904.00.300.370.440.510.670.875.00.250.300.370.430.610.8321 12322 CECS141:20022 1.......................................................42....................................................43.......................................................43.1.................................................43.2.................................................54...........................................54.1...................................54.2.............................................54.3...............................55...................................................55.1.................................................55.2...................................75.3...................................76...........................................86.1.................................................86.2.................................................97...................................................108...................................................10A......12B......................................133 11.0.11.0.2GBJ69841.0.3GB50332GBJ6984GBJ6984..Spangler1.0.41.0.5GB5026822.0.12.0.3GBJ1329033.13.1.1Q235GB/T7003.1.24 3.23.2.1GB500173.2.244.14.1.1GB50332GBJ69844.1.24.1.4GB503324.24.2.14.2.3GB50332GBJ69844.34.3.11GBJ69840.5MPa21.5.4.3.24.3.6GB5033255.15.1.15.1.2GB503325 GB50153GB50068GBJ6984GB501535.1.3GB50332αsEptαs()3Erd0EpEdtr0αs1αs1αs15.1.415205.1.51.5GB503326 5.25.2.15.2.2GB50332γ0GBJ69845.2.3GB50009γCQγGCGγkQ1Q1kϕϕcicϕc0.9GBJ69845.2.3γG1=1.2γG1=1.27γQ=1.4GB503326.15.2.45.2.52.52.01.051.15.2.65.35.3.15.3.2GB503325.3.37 66.16.1.16.1.2η=0.9GBJ6984ϕm=1.12GBJ69846.1.3GB50332GBJ6984GBJ6984123ϕ0.71.04M5.26.1.16.1.26BJ69846.1.48 6.26.2.16.2.2GBJ69842−1)(t)F2Ep(n3Edcr,kD3(1−VP2)0(n2−1)(1Vs)26.2.36.2.46.2.59 7GBJ69846.1.3GB5033288.0.18.0.6GBJ69848.0.28.0.38.0.48.0.78.0.810 8.0.98.0.1011 ASpangler12 BGB503321ξα1α2(E)e/EnB.0.1ξα1α2EeEnBB.0.2-2B.0.113'