新型组合隔震支座设计与性能研究  

Design and performance study of a novel isolation bearing

作　　者：韩汶利 高向宇[1] 吴凡[1] 田杰[1] 王作杰 HAN Wenli;GAO Xiangyu;WU Fan;TIAN Jie;WANG Zuojie(Beijing Key Laboratory of Seismic and Structural Diagnosis and Treatment for Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学北京市工程抗震与结构诊治重点实验室,北京100124

出　　处：《地震工程学报》2024年第1期146-155,共10页China Earthquake Engineering Journal

基　　金：国家自然科学基金(51578029)。

摘　　要：在已有研究基础上,为提高摩擦型组合隔震支座变形能力、改进各摩擦组件位移协调性,建立实体化和参数化计算模型,对新型三段两级摩擦组合隔震支座进行构造及内力分析研究,使用ABAQUS软件对摩擦阻尼器和组合隔震支座进行实体有限元模拟。针对设置常规隔震支座和新型组合隔震支座的某隔震结构案例进行建模及非线性时程地震响应分析,推导组合隔震支座出力和构造参数的关系。研究结果表明,文章所采用的摩擦阻尼器参数化建模方法是准确的,新型组合支座可明显降低支座拉应力,减小隔震层位移,提高结构抗倾覆能力。文章提出的针对摩擦阻尼器的简化单元可大幅提高有限元模型的计算效率。To improve the deformation capacity of composite rubber bearings with a friction damper and the displacement coordination of friction components,solid and parametric computational models were established based on existing studies.The structure and internal force analysis of the novel composed isolation bearing were studied,and a solid finite element simulation of the friction damper and composed isolation bearing was performed using ABAQUS software.Based on the modeling and nonlinear time-history seismic response analysis of an isolated structure with conventional isolation bearing and the proposed combined isolation bearing,the relationship between the output and structural parameters of the composite bearing was deduced.The research results show that the parametric modeling method of the friction damper adopted in this study is accurate,and the novel composite bearing obviously reduces the tensile stress of the bearing and displacement of the isolation layer,improving the overturning resistance of the structure.The proposed simplified element for the friction damper can greatly improve the calculation efficiency of the finite element model.

关 键 词：摩擦阻尼器 组合支座 有限元分析 隔震层 

分 类 号：TU352.1[建筑科学—结构工程]