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开云体育 开云平台考虑散料与结构相互作用的钢筒仓抗震性能:研究进展与自振特性分析(英文)

发布时间:2023-10-09 16:31:51 人气:

  第 20 卷第 3 期2014 年 9 月空 间 结 构SPATIALSTRUCTURESVol.20No.3Sep.2014Receiveddate : 2014 - 04 - 02.Foundationitem : NationalNaturalScienceFoundationofChina ( 51378459 ) .Biography : ZHANGPan (1990 —), Male , PhDcandidate , mainly engagedintheresearchofspacestructures.Corresponding author : ZHAOYang , Male , PhD , Professor.E - mail: ceyzhao@zju.edu.cnDOI : 10.13849 / j.issn.1006 - 6578.2014.03.088Seismicbehaviorofsteelsilosconsideringgranularmaterial - structureinteraction : researchadvancesandnaturalvibrationproperty analysisZHANGPan , ZHAOYang( Space Structures Research Center , Zhejiang University , Hangzhou 310058 , China )Abstract : Areviewofresearchadvancesonseismicbehaviorofsilosispresentedinthispaper ,withmainfocusonthedevelopmentofeffectivemasscoefficientmethodandtheeffectofgranularmaterial - structureinteraction.AnewthreedimensionalmodelfortheanalysisofsquatsteelsilosisthendevelopedbasedonthetheoreticalworkofSilvestrietal , inordertoinvestigatethegran -ularmaterial - structureinteractioneffectunderdynamicexcitation.Themostremarkablecharac -teristicofthismodelistodividethegranularcontentsintotwoportions : thecentralportion(graincompletely leaning againstthelayersbelow ) andtheexternalportion(graincompletelysustainedby thewall) .Thegeometriccompatibilitybetweentheexternalportionofthegranularmaterialsandthesilowallisenforcedby meansofspecialcontactpairs , whilebetweentheexter-nalportionandthecentralportionby meansofcouplingtheradialDOFs.By using theproposednumericalmodel , aparametricstudy iscarriedoutonthenaturalvibrationproperty ofsteelsilos ,andtheeffectsofthemass...

  第 20 卷第 3 期2014 年 9 月空 间 结 构SPATIALSTRUCTURESVol.20No.3Sep.2014Receiveddate : 2014 - 04 - 02.Foundationitem : NationalNaturalScienceFoundationofChina ( 51378459 ) .Biography : ZHANGPan (1990 ), Male , PhDcandidate , mainly engagedintheresearchofspacestructures.Corresponding author : ZHAOYang , Male , PhD , Professor.E - mail: ceyzhao@zju.edu.cnDOI : 10.13849 / j.issn.1006 - 6578.2014.03.088Seismicbehaviorofsteelsilosconsideringgranularmaterial - structureinteraction : researchadvancesandnaturalvibrationproperty analysisZHANGPan , ZHAOYang( Space Structures Research Center , Zhejiang University ,Kaiyun 开云 Hangzhou 310058 , China )Abstract : Areviewofresearchadvancesonseismicbehaviorofsilosispresentedinthispaper ,withmainfocusonthedevelopmentofeffectivemasscoefficientmethodandtheeffectofgranularmaterial - structureinteraction.AnewthreedimensionalmodelfortheanalysisofsquatsteelsilosisthendevelopedbasedonthetheoreticalworkofSilvestrietal , inordertoinvestigatethegran -ularmaterial - structureinteractioneffectunderdynamicexcitation.Themostremarkablecharac -teristicofthismodelistodividethegranularcontentsintotwoportions : thecentralportion(graincompletely leaning againstthelayersbelow ) andtheexternalportion(graincompletelysustainedby thewall) .Thegeometriccompatibilitybetweentheexternalportionofthegranularmaterialsandthesilowallisenforcedby meansofspecialcontactpairs , whilebetweentheexter-nalportionandthecentralportionby meansofcouplingtheradialDOFs.By using theproposednumericalmodel , aparametricstudy iscarriedoutonthenaturalvibrationproperty ofsteelsilos ,andtheeffectsofthemassofthecontents , theelasticmodulusofthecontentsandtheinitialcon -tactstiffnessofthecontactpairsarediscussed.Keywords : steelsilos ; seismicbehavior ; granularmaterial - structureinteraction ; numericalmod -el ; naturalvibrationpropertyCLCnumber : Documentcode : AArticleID : 1006 - 6578 ( 2014 ) 03 - 0088 - 09考虑散料与结构相互作用的钢筒仓抗震性能:研究进展与自振特性分析张 攀,赵 阳(浙江大学空间结构研究中心,浙江 杭州 310058 )摘 要:首先回顾了筒仓抗震性能的研究进展,主要从有效质量系数和散料与筒仓壁动力相互作用两方面进行阐述.同时,基于Silvestri等人提出的理论模型,建立了合理的三维钢筒仓数值模型来模拟动力激励下散料与结构的相互作用效应.本模型的主要特点是将仓内散料分成内、Kaiyun 开云外两部分:内部的每层散料重力完全由其下一层散料承担,而外部散料重力则完全通过摩擦力由仓壁承担 . 筒仓壁与外部散料之间的几何协调通过接触对实现,内部散料与外部散料间的协调则通过接触面处的节点径向自由度耦合实现 . 利用该数值模型进行了钢筒仓自振特性的参数分析,讨论了散料质量、弹性模量以及接触单元初始接触刚度等因素对自振特性的影响.关键词:钢筒仓;地震响应;散料与结构相互作用;数值模型;自振特性Kaiyun App下载 全站Kaiyun App下载 全站





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