框架结构基础隔震的减震效果分析  

SEISMIC ANALYSIS FOR BASE ISOLATION OF FRAME STRUCTURE

作　　者：雷静雅[1] 王开岭[2] 罗登贵[1] 王磊[2] 曾心传[1] 

机构地区：[1]中国地震局地震研究所(地震大地测量重点实验室),武汉430071 [2]开封大学,开封475004

出　　处：《大地测量与地球动力学》2013年第A02期41-44,共4页Journal of Geodesy and Geodynamics

基　　金：中国地震局地震研究所所长基金(IS200716004)

摘　　要：框架结构采用叠层橡胶支座基础隔震,根据叠层橡胶支座应满足的基本条件,运用ANSYS软件建立隔震结构计算模型,通过具体算例分析这种结构在破坏性地震作用下的减震效果,得出:1)橡胶支座基础隔震的适用范围不只与结构高宽比有关,还与结构的自振周期有关,结构的自振周期大于1,隔震结构的减震效果就会明显下降;2)叠层橡胶支座基础隔震可应用于十四层以下的纯框架结构;十四层以上则减震效果不好,不能采用。The frame structure uses laminated rubber bearings base isolation, according to the basic conditions of laminated rubber bearings, using the ANSYS software to establish the calculation model of the isolated structure, the damping effect of this structure in the rare earthquake is analyzed through a specific example. Finally, two con- clusions are proposed. 1 ）The application scope of rubber bearings base isolation is not only associated with the structure of the height to width aspect ratio, but also associated with the structure of the natural period. If the vibra- tion period of the structure is greater than 1, the damping effect of the isolated structure will be significantly de- creased. 2）Laminated rubber bearings base isolation can be applied to the pure frame structure with the following 14 floors ; the 14 layer can be used, but the damping effect is not good;14 floors above can not be used.

关 键 词：框架结构 叠层橡胶支座 基础隔震 减震 高宽比 

分 类 号：TU352[建筑科学—结构工程]