资源描述：
《Seismic Induced Global Collapse英文资料》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、SeismicInducedGlobalCollapseofNon-deterioratingFrameStructuresChristophAdamandClemensJager¨AbstractInasevereseismiceventthedestabilizingeffectofgravityloads,i.e.theP-deltaeffect,maybetheprimarytriggerforglobalcollapseofquiteflexiblestructuresexhibitinglarg
2、einelasticdeformations.Thisarticledealswithseismicinducedglobalcollapseofmulti-storyframestructureswithnon-deterioratingmate-rialproperties,whicharevulnerabletotheP-deltaeffect.Inparticular,theexcitationintensityforP-deltainducedstructuralcollapse,whichis
3、referredtoascollapseca-pacity,isevaluated.TheinitialassessmentofthestructuralvulnerabilitytoP-deltaeffectsisbasedonpushoveranalyses.MoredetailedinformationaboutthecollapsecapacityrendersIncrementalDynamicAnalysesinvolvingasetofrecordedgroundmotions.Inasim
4、plifiedapproachequivalentsingle-degree-of-freedomsystemsandcollapsecapacityspectraareutilizedtopredicttheseismiccollapsecapacityofreg-ularmulti-storyframestructures.KeywordsCollapsecapacityspectraDynamicinstabilityP-delta1IntroductionInflexiblestructuresg
5、ravityloadsactingthroughlateraldisplacementsamplifystructuraldeformationsandstressresultants.ThisimpactofgravityloadsonthestructuralresponseisusuallyreferredtoasP-deltaeffect.ForarealisticbuildinginitselasticrangetheP-deltaeffectisusuallynegligible.Howeve
6、r,itmaybecomeofsignificanceatlargeinelasticdeformationswhengravityloadsleadtoanegativeslopeinthepost-yieldrangeofthelateralload-displacementrelationship.InsuchC.Adam()UniversityofInnsbruck,DepartmentofCivilEngineeringSciences,6020Innsbruck,Austriae-mail:c
7、hristoph.adam@uibk.ac.atC.J¨agerUniversityofInnsbruck,DepartmentofCivilEngineeringSciences,6020Innsbruck,Austriae-mail:clemens.jaeger@uibk.ac.atM.Papadrakakisetal.(eds.),ComputationalMethodsinEarthquakeEngineering,21ComputationalMethodsinAppliedSciences21
8、,DOI10.1007/978-94-007-0053-62,cSpringerScience+BusinessMediaB.V.201122C.AdamandC.J¨agerFig.1NormalizedbilinearfnoP-deltacyclicbehaviorofaSDOFsystemwithandwithoutα1P-deltaeffectθα−θ1μwithP-deltaasituationlargegravi
