框架结构局部隔震体系抗震性能研究  

Study on seismic behavior of local isolation system of frame structure

作　　者：刘亚如 陈宝魁 徐彦青 Liu Ya-ru;Chen Bao-kui;Xu Yan-qing(Luoyang Vocational Colege of Seience and Technology,Luoyang 471000,China;School of Civil Engineering and Architecture,Nanchang University,Nanchang 330031,China;Jiangxi Provincial Engineering Laboratory of Nearly Zero Energy Building,Nanchang 330031,China)

机构地区：[1]洛阳科技职业学院,河南洛阳471000 [2]南昌大学建筑工程学院,江西南昌330031 [3]江西省近零能耗建筑工程实验室,江西南昌330031

出　　处：《工程抗震与加固改造》2023年第5期92-99,共8页Earthquake Resistant Engineering and Retrofitting

基　　金：国家自然科学基金(51868048);中国地震局基本科研业务费项目(2018D18)。

摘　　要：为提高手术室、灾害指挥中心等重要房间的抗震安全性能,本文提出一种适用于新建和既有框架结构的新型局部隔震体系。通过数值模拟的方法,分别建立普通4层框架结构模型以及使用新型局部隔震体系的模型,从隔震房间的地震响应、设计安全性以及对结构整体的影响等多个方面,分析研究局部隔震体系的减震效果。分析结果表明,在7度与8度罕遇地震作用下采用新型局部隔震体系隔震房间的相对加速度和相对位移显著减小,约为原框架结构的1/10。说明该局部隔震结构体系能够大幅度降低被隔震房间的地震响应,且未影响原结构的抗震性能,具有良好的研究价值与应用前景。In order to improve the seismic safety of important rooms such as operating room and disaster command center,a new type of partial seismic isolation system suitable for frame structure is proposed in this paper.Through numerical simulation,a four-story frame structure model and a new partial seismic isolation system model are established respectively.The damping effect of the partial seismic isolation system is studied from the seismic response of the isolation room,the design safety and the influence on the whole structure.The analysis results show that the relative acceleration and displacement of the isolation room can be reduced significantly by using the new partial seismic isolation system,which is about 1/10 of the original frame structure,under the action of 7 degree and 8 degree rare earthquakes.It shows that the partial seismic isolation structure system can greatly reduce the seismic response of the isolated room,and does not affect the seismic performance of the original structure,which has a good research value and application prospect.

关 键 词：局部隔震 框架结构 数值模拟 抗震性能 隔震支座 

分 类 号：TU352.1[建筑科学—结构工程]