抗震规范中隔震装置的地震风险分析

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (13) : 109-114.

论文

抗震规范中隔震装置的地震风险分析

熊焱1 ，吴迪2，3，崔杰2

作者信息 +

Probability seismic risk analysis of isolation equipment in seismic design codes

XIONG Yan 1 WU Di 2,3 CUI Jie 2

Author information +

文章历史 +

摘要

目前关于基础隔震结构抗震性能评价的研究主要针对隔震层以上的上部结构，对于隔震装置的地震风险分析仍有待完善。本文以隔震层水平位移与隔震装置尺寸（支座的有效直径）的比值作为结构需求，借鉴《建筑抗震设计规范》（GB50011-2010）所规定的隔震支座的水平位移限值作为划分标准，初步建立结构基础隔震中隔震装置的概率地震需求模型，探索建立其地震风险分析方法。最后，以灾区已建成的一座七层混凝土框架基础隔震结构建筑作为算例，通过所提出的模型和方法对其隔震装置进行地震风险分析。

Abstract

The research of the evaluation of seismic performance of base-isolated structure mainly focus on the upperstructure above the isolation equipment at present. However, comparatively little research has been made on the seismic risk analysis of isolation equipment which needs to be perfected further more. The ratio of the horizontal displacement of the isolation equipment and the dimensions of the isolation device (effective diameter of bearing) has been used as the structural demand, and the horizontal displacement limit of the isolation bearing in 2010 Chinese Code for Seismic Design of Buildings (GB50011-2010) has been defined as division standard for reference of the limit states. Then probabilistic seismic demand model (PSDM) for the isolation equipment in the base-isolated structure was initially built, and the exploration of the probability seismic risk analysis of the isolation equipment in base-isolated structure has been performed. At last, a seven-story base-isolated reinforcement concrete (RC) structure which was built in disaster area was studied as an example. This designed model and method was used to evaluate the probability seismic risk of the isolation equipment in the base-isolated structure.

导出引用

熊焱1,吴迪2,3, 崔杰2. 抗震规范中隔震装置的地震风险分析[J]. 振动与冲击, 2015, 34(13): 109-114

XIONG Yan 1 WU Di 2,3 CUI Jie 2 . Probability seismic risk analysis of isolation equipment in seismic design codes [J]. Journal of Vibration and Shock, 2015, 34(13): 109-114

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