搜索
314620106No.3（SerialNo.146）Jun.2010CHINAMUNICIPALENGINEERING、，112m，11.6m，22.4m，1/5。，。，、。，，。，2，，1212。1。：100kN，，；，250kN，。，、，。，、［1-3］。，。，、、、，。1。1：≤1%，4→9→3→10→5→8→11→2→6→7→12→1，，18。2：，≤3%，4→9→3→10→5→8→11→2→6→7→12→1，，10。1。，。，，，，。21，2（1.，518029；2.，200122）：，、、、（）。，。：；；；；；：U448.225：A：1004-4655（2010）03-0021-03：2010-03-0312/kN/kN/%/kN/kN/%1102.6100.00.00250.0250.1-0.042116.6100.00.00251.7250.00.003182.899.60.40243.4252.4-0.964200.499.40.60230.7255.2-2.085218.7100.00.00234.7252.8-1.126138.8100.00.00241.5251.3-0.527105.9100.00.00250.0250.00.008178.1100.00.00236.4252.2-0.889285.099.10.90228.1252.8-1.1210161.399.70.30242.5250.6-0.2411113.6100.00.00251.3249.30.2812101.3100.00.00250.0250.2-0.0811123456789101112。，，4→9→10→3→5→8→11→2→6→7→12→1，1→12→7→6→2→11→8→5→3→10→9→4，，，。，：2，，1，；2，。2。，，、。，—。。1、2，21，。，100kN，。，，，，。、。，—，，。，，，。3，P0+AT=PT=（P-P0）A-1。：P0,10；A；T，；P。T，，，。P0≠0，T，。T，。，，，250kN。14→9→10→3→5→8→2→11→6→7→12→1；23→10→5→8→4→9→11→2→6→7→12→1，、，3。，，，。，，。，。12/kN/kN/%/kN/kN/%1100.3100.3-0.30100.292.47.602105.897.03.00100.188.211.803125.394.15.90112.685.514.504114.686.913.10100.183.416.605130.691.88.20122.284.115.906119.390.79.30115.984.415.60796.798.61.4096.191.48.608122.487.712.30118.181.418.609166.986.313.70147.182.817.2010114.591.58.50100.786.014.0011104.496.83.2097.688.911.101299.5100.00.0099.192.67.4023/kN12/kN/kN/kN/kN1145.3250.0251.4250.0251.52170.4271.4251.3271.4251.43202.3356.7251.1427.1250.54213.4464.7250.4320.2251.05244.7391.1251.0458.3251.06261.8333.7251.0333.7250.97264.3246.2251.0246.2251.08251.1379.8250.8452.8250.89231.0474.9250.8323.4250.810215.9350.8250.9433.8250.911156.4268.7251.2268.7251.212141.2247.2251.4247.2251.4，：20103/mm1-10.599.999.9113.399.42-22.8111.1100.0108.8100.13-33.9137.2100.1108.8100.34-41.9161.0100.0120.699.95-48.6197.9100.2144.399.96-53.1127.599.9172.099.97-52.697.199.8204.6100.28-48.0163.1100.2215.8100.09-42.7241.3100.0183.8100.010-34.3156.5100.1151.5100.011-22.4107.5100.0122.0100.012-9.897.899.899.899.81/kN/kN2/kN/kN54/mm/kN/%1mm/%1-10.599.40.609.432-22.8100.1-0.104.393-33.9100.3-0.302.964-41.999.90.102.395-48.699.90.102.066-53.199.90.101.887-52.6100.2-0.201.908-48.0100.00.002.089-42.7100.00.002.3410-34.3100.00.002.9111-22.4100.00.004.4612-9.899.80.2010.20，。，。4，，，、，［4］。，，，。，、（4）。，。。,。，1mm10%，、，，。，。5———，，，。，，。，14→9→10→3→5→8→11→2→6→7→12→1，21→12→2→11→3→10→4→9→5→8→6→7，25。5，12，，2。，，，。6，、、、，，。：［1］，，，.［J］.，2002，22（3）：26-28.［2］，.［J］.，2008，25（1）：88-91.［3］，，.［J］.，2008，5（2）：12-16.［4］.［J］.，2003（2）：31-34.，：20103ABSTRACTS3.HalcrowChinaLtd.,Shanghai200021,China)Abstract:Prestressedconcreteboxgirderwithvaryingwidthembodiesveryobviousthree-dimensionalmechanicalbehavior.Thefinestructuralanalysismethodwhichcanobtainveryaccurateresultsisoneoftheimportantfactorstothedesignofthiskindofstructure.Inthepaper,thetechniqueandprocedureofANSYSsoftwarefortheanalysisofthestructureisintroducedindetail,andthroughengineeringexampleoffive-spancontinuousprestressedconcreteboxgirderinNingboAirportLine,thisproposedmethodcanobtainstate-of-the-artanalyticalresults(whichthecommonbeammethodcannothave)forthosedesigners'reference.Keywords:prestressedconcrete;boxgirderwithvaryingwidth;finiteelementmethod;ANSYSanalysissoftware;structuralanalysisCalculationMethods&ComparisonofDifferentSuspenderTensionCableForceofBowstringArchBridgeZHUXiao-xiu1,SUNJiu-chun2(1.ShenzhenMunicipalEngineeringDesignInstituteCo.,Ltd.,Shenzhen518029,China;2.TengdaConstructionGroupCo.,Ltd.,Shanghai200122,China)Abstract:Basedontheexampleofsuspendertensionofbowstringarchbridge(ShanghaiPudongAve.pipelinebridge),theapplicationsofdifferentmethodsandtheiradvantages&disadvantagesarestudiedsystematicallyinthepaper.Thereareforward-calculationmethod,back-runningmethod,influencematrixmethodandunstressedstatecontrolmethod(includinganchorpullcapacitytransferredtosuspendertensionforce).Finally,it'spointedoutthattheorganicunityofthecontrollingsofanchorpullcapacityandsuspendertensionforceliftingjackreadingswillsimplifythecablesadjustmentworkingamountofcomplicatedmiddle-smallstructures.Keywords:suspender;forward-calculationmethod;back-runningmethod;influencematrixmethod;unstressedstatecontrolmethod;tensioncableforcecalculationStressAnalysisofCrossbeamsManholesofPrestressedContinuousBeamBridgewithMono-box&Multi-cellsFENGYi-peng(ShanghaiMunicipalEngineeringDesign&ResearchGeneralInstitute,Shanghai200092,China)Abstract:Duetotheimpactofmulti-web,thesheardistributionalongcrossbeamsoftheprestressedconcretegirderbridgewhichhasmono-boxwithmulti-cellscross-sectionislargeandvast,sothemanholeinthecrossbeamwhichcausessectionweakenandsignificantstressconcentration,willeffectstructuralsafety.Onaccountofthecomplexstressstatearoundthemanholeinprestressedreinforcedconcretecrossbeams,spatialfiniteelementmodelisusedtocalculatethestressaroundmanholesthroughtheanalysisofthemiddlecrossbeam(whichhasmanholesin)ofaprestressedconcretecontinuousbeambridgethathasmonoboxwithdoublecellssection,andtheanalysiscandirectreinforcementdesignaroundthemanhole.Keywords:prestressedconcretecontinuousbeambridge;mono-box&multi-c