向量式有限元在索膜结构分析中的应用-结构工程专业论文.docx

A B ST R A C TC ablem em brane strueturesaresPecialnew tyPeof sPatialstru etUres，whieh havebeen w idely used in the w orldw ild.C able m em brane strueturesgetthe sti而essbyPrestressed，whieh 15a ProeesseouPling ofstructuresand m eehanism s.Rigid bodydisPlaeem entand elastiedeformation existinany singlestePoftheanalysisproeess.The traditional finite elem entm ethod m ay have m any diffieulties in dealing w iththeseProblem s，whieh leadtoaeom Plexealeulation Proeessand inaeeurateresults.TheVeetorForm IntrinsieFiniteElementM ethod(VFIFE)，asanew ealeulationm etho d，Pro PosestheeoneePtofPartielem otion and thecriteriaofPartielem ovem ent.Finiteelem ent m ethod 15 sim ultan eously introdueed to handletheinteraetion betw eenP artieles and a sP eeialm ethod 15 adoPted to dealw ith the rigid b ody disPlaeem ent.T hrough these m ethods，the V FIFE ean solve eom Plexm eehanieal Problem seffieientlyand aceurately，sueh aseontaet eollision，fractureand eollaPse.InthisPaPer，the VFIFE 15em Ployed in the form 一finding analysis，eonstructionanalysisand load analysisofeablem em brane struetUres.Thestudiesin thethesisaremainlyofsuehrelevanee as:(l)derivethe basieequationsofeableelementandtrusselem ent，eode Program o feabletrusselem entandsolves exam Plesw ith eom Plexboundaryconditions:(2)aPPlytheVFIFE intheform一findingoftensionstruetures，studytheform一findingexamPleswith differentboundaryeonditions:(3)elaborate thedirectandinverseanalysismethods intheeonstruetionanalysis，verifythattheVFIFE15 sim Ple and effeetive by num eriealexam Plesand analyze the co nstruetion formProeessofShenzhenBaoanStadium;(4)derivethebasieequationsandcodetheProgram oftriangularm em brane elem ent，caleulate som e exam Ples and use themethodintheform一findinganalysis:(5)studythewrinkleProblem ofm em branestr一ett一resand introduee the V FIFE intothe analysisof一ne一nbrane strueturew ith load.SPecialfeatt一res ofthe V FIFE rnake itan tlniq t一e m etho