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Span arched roof structure of the wind-induced response analysis

WilsonEL, YuanMingwu, DickensJM. DynamicanalysiydirectsuperpositionofRitzvectors. Earth-quakeEngineeringandStructuralDynamics,[link widoczny dla zalogowanych], 1982; 10:813-8216SimiuE, ScanlanRH. WindEffectsonStructures. 3rdEdition. NewYork: JohnWiley & Sons,[link widoczny dla zalogowanych], Inc, 19967 Zhen-Hua Ni . Vibrations. Xi'an: Xi'an Jiaotong University Press , 1989AnalysisofWind - InducedResponseforLarge '· SpanDomeRoofsHuangMingkaiNiZhenhuaXieZhuangning (DepartmentofCivilEngineering,[link widoczny dla zalogowanych], ShantouUniversity, Shantou, 515063, China) Abstract: Thesolutionoftheeigenvalueproblemforlarge-spanroofstructureisofthemostcostlyphaseofdynamicresponseanalyses. AndsomespecificmodesthathavedominantcontributionstOthestructuralresponseareeasilyoverlookedbecauseoftheirhigherpositionofmodalorderwhileusingthetraditionalmodalsuperpositionmethod. Inthispaperasanexampleofatypicallarge-spandomeroof, thedirectsuperpositionmethodofRitzvectorsareusedinthesolutionoftheeigenvalueprob-lemandthecalculationofwind-inducedresponseoftheroofs. ItisafeaturethatasequenceoforthogonalRitzvectorsisgen-eratedautomaticallybasedontheerrorminimizationandemployedtOreducethesizeofthesystem. Comparedbytheresponseobtainedbythetraditionalmodesuperpositionmethod,[link widoczny dla zalogowanych], thedirectsuperpositionmethodofRitzvectorsyieldsmoreaccurateresuItswithfewervectorsandthecontributionsofhighermodesarenotoverlooked. Theproposedmethodnotonlyreducescomputationtimesignificantlybutalsoprovideserrorestimationforthedynamicanalysis · Keywords: wind-inducedvibration; modalanalysis; domeroofs; Ritzvector first author : Huang Ming- open , male , graduate , 1973 students 1O months . Tel : (0754) 2902550,[link widoczny dla zalogowanych],2904137; E-mail: g-mkhuang @ stu. edu · cn

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