大跨度單索面斜拉橋幾何非線(xiàn)性分析.pdf

1、西南交通大學(xué)碩士學(xué)位論文大跨度單索面斜拉橋幾何非線(xiàn)性分析姓名：邵長(zhǎng)勝申請(qǐng)學(xué)位級(jí)別：碩士專(zhuān)業(yè)：橋梁與隧道工程指導(dǎo)教師：祝兵20080301西南交通大學(xué)碩士研究生學(xué)位論文第Ⅱ頁(yè)ABSTRACTInrecentdedes，withthedevelopmentofbridgetechnologyappearanceofnewmaterialandgreatprogressindesignandconstruction，cable—stayedb

2、ridges，bytheirbeautifulshapesanduniquestructuralqualities，haveenteredintotheirsummitofconstructionintheworldSingleplanecablestayedbridgeshavebeenmoleandmoleacceptedbythebridgeengineersThenonlinearityofthestructurewillbri

3、ngqualitativechangewiththespandevelopmentofthequantitativechange，andbemoleandmoreimportantintheprocessofthedesignandtheconstructionAsthereisonlyonecentralplaneinthesingleplanecablestayedbridge，andthestressofthecableisbig

4、gerthanthedouble—cable，SOthebehaviourofthenon—linearityshouldbepaidmoreattentiontothesingleplanecablestayedbridgeThebasictheoryofthenonlinearityofthecable—stayedbridgeisfirstlyintroducedinthisthesis，thenthreeprincipalfac

5、torsthataffectthegeometricnonlinearityofcablestayedbridgesaredescribedwhicharecablesageffect，largedisplacementeffectandthecoupledbeamcolumneffectofbendingmomentandaxialforceAfterthatthefiniteelementanalysismethodfortheno

6、nlinearityofthecablestayedbridgesWasintroduced，whichnamelytheequivalentmodulusofelasticityintroducingstabilityfunctionsandcontinuouslymodifyinggeometryofstructureWiththehelpofFEM—softwareofMIDAS／Civil，themodelingofZhengz

7、houcable—stayedbridgewithsingleplanewasmade，whichhas146constructionphrases，andthenthelinearityandthenonlinearitywereinvestigatied，thekeypointsandpositionswereselectedforthemainresearch，therealefourconstructionphaseswhich

8、areselectedfortheemphasisanalysis，thefourphasesareseparatelypreclosingofside—span，closingofsidespan，preclosingofmidspanandtheclosingofthemid—span，aswellasthefinishedphraseofthecable—stayedbridgewhichareactedbythesecondar