钢纤维自应力混凝土压力管道自应力计算方法

200307SHUILIXUEBAO70559-9350(2003)07-0124-0511,1(1.116024)TV672.2A1AQ/STSJ061998l/d=55,l=32mm,d=1.56mm11(kg/m3)28860058888278(156)12100mm100mm550mm140.785%1.13%2.01%4.91%30%1%2%1232028d21%1.35%2028d2002-01-251(1972-)124200307SHUILIXUEBAO72213S32(%)f=0f=1f=2ab16030569310497020220,)1(/−=−xxeabxsε(1)xab1fs231sAcll.0EsAslllEAAsszc0−=σ(2)2=sEss(3)ss125200307SHUILIXUEBAO7cuffssscfsfdlEµρερσ303.0,+=(4)fs40.14f,dlfcu4(4)435457160=−+rdrdrrθσσσ(5)rr++−−−=++−−−=fcrccccfcccrccrEEεµσµµσµεεµσµµσµεθθθ)1(1)1()1(1)1(22(6)r,c,Ecfrudrdur==θεε,(7)126200307SHUILIXUEBAO7u(5)-(7)drdrudrdurdrudfccεµµ−+=−+111222(8)∫++−+=rCrCrdrrufcc21111εµµ(9)−−+−+−+=∫2212211111rCCrdrrEcfccccrµεµµµσ(10)+−+−++−+−+=∫221221111111rCCrdrrEcfccfccccµεµµεµµµσθ(11)(9)(11)C1,C2(12)(14)01222=−+rudrdurdrud(12)rCrCuss21+=(13)−−−+−=221211)1(1rCCEssssssrµµµσ(14)s,EsCs1,Cs2(9)(14)sfscsfEEερε+=1s2(1)s127200307SHUILIXUEBAO7sfscsfEEερε+=1sf2(1)cuffdlµρ303.0s0.0135c=36000MPas=196000MPa(1)649.035.11064535.1)1(931−−×=−×=esfε6106921−×=+=sfscsfEEερε,cp,s=sfESs=1.71MPaMPafdpcuffcp52.11303.0,==µσ3.23MPa5533/MPa(10-6)/MPa(10-6)160.55162.97756.2737.6143.1136.2730.3695.24611.35%ANSYS6745128200307SHUILIXUEBAO712910-674710-6731.574510-677710-673510-675610-668710-6677.510-651.J.1995326-31.2.M.1990.3.J.1999236-39.4.D.2000.5KawakamiM,GamskiK,TokudaH,KagayaM.ChemicalPrestressandStrengthofReinforcedConcretePipesUsingExpansiveConcreteJ.MaterialsandStructures,1989,22:83-90.6S..M.1979.7.J.2001(1)70-74.