文章摘要
刘德稳,孙毅,齐荣庆,赵煊.层间隔震偏心结构双向地震耦合响应研究[J].地震工程学报,2019,41(6):1440-1447. LIU Dewen,SUN Yi,QI Rongqing,ZHAO Xuan.Coupling Seismic Response of Inter-story Isolated Eccentric Structures under a Bi-directional Earthquake[J].China Earthquake Engineering Journal,2019,41(6):1440-1447.
层间隔震偏心结构双向地震耦合响应研究
Coupling Seismic Response of Inter-story Isolated Eccentric Structures under a Bi-directional Earthquake
投稿时间:2018-10-10  
DOI:10.3969/j.issn.1000-0844.2019.06.1440
中文关键词: 层间隔震结构;双向地震;耦合;偏心
英文关键词: inter-story isolated structure;bi-directional earthquake;coupling;eccentric
基金项目:国家自然科学基金(51808467);云南省农业基础联合基金(2017FG001);云南省博士后基金(2018);西南林业大学教育科学重点课题(201702)
作者单位
刘德稳 西南林业大学土木工程学院, 云南 昆明 650000
广州大学教育部工程抗震减震与结构安全重点实验室, 广东 广州 510405 
孙毅 西南林业大学土木工程学院, 云南 昆明 650000 
齐荣庆 西南林业大学土木工程学院, 云南 昆明 650000 
赵煊 School of Engineering and Built Environment, Glasgow Caledonian University, Glasgow, UK 
摘要点击次数: 86
全文下载次数: 66
中文摘要:
      建立双向地震作用下层间隔震双向偏心结构侧扭耦联分析模型;考虑上部结构及下部结构的弹塑性模型,隔震支座采用双向耦合非线性Bouc-wen模型模拟;分析偏心参数对层间隔震双向偏心结构的影响规律;评价双向地震作用下我国抗震规范给出的扭转影响系数静力预测值的准确性。结果表明,双向地震作用下设置中间柔性隔震层可以减小上、下部结构扭转的耦连效应;下部结构存在双向偏心会对隔震层和下部结构扭转反应带来不利影响;LRB耦合效应对层间隔震地震响应影响较小;当下部结构偏心率较大时现行规范计算扭转系数偏于不安全。
英文摘要:
      This paper studied the torsional effect of inter-story isolated bi-directional eccentric structures subjected to bi-directional earthquakes. A torsion-lateral coupling analysis model of an inter-story isolated bi-directional eccentric structure under bi-directional earthquakes is presented. Nonlinear properties of both superstructure and substructure were considered. Biaxial force-deformation behavior of the lead rubber bearings (LRB) was simulated by the Bouc-wen model. The influence of eccentric parameters on the inter-story isolated structure was investigated by Matlab software. Numerical simulation was conducted to verify the accuracy of the torsion coefficient formula provided by the Chinese Code of Seismic Design of Buildings (GB 50011-2010). Results showed that the mid-isolation layer significantly reduced the coupling torsion effect of superstructure and substructure under a bi-directional earthquake. The bi-directional eccentric of substructure had an adverse effect on torsion responses. Results obtained from the Chinese seismic code were unsafe when the eccentric ratio of the substructure was too high.
查看全文   查看/发表评论  下载PDF阅读器
关闭

您是第2777891位访问者
版权所有欢迎《地震工程学报》编辑部
主管单位:中国地震局 主办单位:中国地震局兰州地震研究所
清华大学
中国地震学会
中国土木工程学会
地  址: 甘肃省兰州市东岗西路450号 邮编:730000 电话:0931-8275892 E-mail: dzgcxb@gsdzj.gov.cn
本系统由北京勤云科技发展有限公司设计