考虑竖向地震作用的滑移摩擦隔震结构高宽比限值研究  

Research on the Limit Ratio of Height to Width for the Sliding Frictional Base-isolated Structure Considering Effect of Vertical Earthquake

作　　者：张富有[1] 王舒珊[1] 顾明[1] 

机构地区：[1]河海大学教育部岩土与堤坝重点试验室,防灾减灾工程与防护工程科学研究所,南京210098

出　　处：《科学技术与工程》2013年第28期8344-8348,共5页Science Technology and Engineering

基　　金：中央高校科研业务费青年教师项目(2612009B14114)资助

摘　　要：对考虑竖向地震作用的滑移摩擦隔震结构的高宽比限值进行了研究。采用多自由度分析模型,建立了滑移隔震结构在水平与竖向地震作用耦联下的运动微分方程,给出了考虑竖向地震作用的滑移摩擦隔震结构的高宽比限值计算公式。以某六层采用摩擦滑移隔震的框架结构为例,考虑不同的场地条件,研究了竖向地震作用的存在对隔震结构高宽比限值的影响。The limit ratio of height to width for the sliding frictional base-isolated structure considering effect of vertical earthquake action is researched. Through analytic model with the multi-degree of freedom, the equation of motion was established for sliding base-isolated structure, considering the earthquake action in both horizontal and vertical directions, the formula for the calculation of the limit ratio of height to width was derived. Take a six-layer frame structure with the sliding frictional base isolation system for instance, the influence of vertical earthquake on the limit ratio is analyzed, in consideration of different sites.

关 键 词：滑移隔震结构 水平与竖向地震作用 高宽比 数值分析 

分 类 号：TU352.12[建筑科学—结构工程]