高层隔震建筑支座受拉提离摇摆响应研究
Study on the Tensile and Swaying Lifting Response of the Support of High-rise Isolated Building
陈晓东CHEN Xiao-dong
(福建省富衢建筑工程有限公司,厦门361000 )
( Fujian Fuqu Construction Engineering Co.,Ltd., Xiamen 361000, China )
摘要:为了研究高层基础隔震建筑隔震层在地震作用下的竖向性能，本文利用ETABS有限元分析软件分别建立了某大高宽比的高层基础隔震建筑,计算得到结构在地震作用下的振动响应情况,并进行了相应振动控制研究。研究表明:该结构在罕遇地震作用下,隔震支座最大竖向位移和最大拉应力分别达到12.44mm和1.275MPa,不满足规范要求;在增设抗拉装置后,隔震支座竖向位移进入弹性范围,拉应力减小率最大可达到60.9%,并且均可将隔震支座的拉应力控制在1MPa以内,满足规范要求,可保证结构在罕遇地震作用下的安全稳定,消除了结构的整体倾覆风险。研究成果可为高层基础隔震建筑设计应用提供理论保障和技术支持。
Abstract: In order to studly the vertical performance of the isolation layer of a high-rise foundation isolation building under earthquakeacion, this paper uses ETABS finite element analysis software to build a high-rise foundation isolation building with a large aspect ratio,and calculates the vibration response of the structure under earthquake action, and conducts corresponding vibration control research. Theresults show that the maxinmum vertical displacement and maximum tensile stress of the isolation bearing reach 12.44mm and 1.275Mparespectively under the action of rare earthquakes, which cannot meet the requirements of the code.After the adldition of the tensile device,the vertical displacement of the isolation bearing enters the elastic range, the maximum reduction rate of tensile stress can reach 60.9%, andthe tensile stress of the isolation bearing can be controlled within 1Mpa, meeting the requirements of the code, ensuring the safety andstability of the structure under the action of rare earthquakes, and eliminating the overall overturning risk of the structure. The researchresults can provide theoretical support and technical support for the design and application of high-rise foundation isolation building.
关键词:高层建筑;隔震结构;数值模拟;支座受拉;抗拉装置
Key words: high-rise buildings; isolation structure; numerical simulation; support tension; tensile device
价值工程-文章出处：陈晓东.高层隔震建筑支座受拉提离摇摆响应研究[J].价值工程,2023,42(19):139-141.
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