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考虑竖向地震作用的LRB隔震结构优化设计 被引量:1

Optimization of base-isolated structure with LRB under vertical earthquake
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摘要 为了研究竖向地震作用对LRB隔震结构的影响,并改善其隔震效果,建立了耦合地震作用下LRB隔震结构的地震反应分析模型并推导出运动微分方程.以7层LRB隔震结构为例进行地震反应分析,研究结果表明当考虑竖向地震作用时,LRB隔震结构仍具有良好的隔震效果,但地震反应有不同程度的增加,且其增量随着竖向地震作用的增加而增加.建立LRB隔震装置的参数优化设计模型,采用IHGA程序对结构的进行优化设计.结果表明,LRB隔震结构在各种工况下的各项地震反应均得到更好地控制. In order to study the influence of coupling earthquake in vertical direction on base-isolated structure with lead rubber bearing(LRB),a dynamic analysis model for the base-isolated structure with LRB under coupling earthquake was set up,and the kinetic differential function was presented accordingly.Taking a 7-story base-isolated structure with LRB for example,it is showed that the base-isolated structure with LRB has a good controlled effect when the action of earthquake in vertical direction is considered...
出处 《哈尔滨工业大学学报》 EI CAS CSCD 北大核心 2009年第12期190-193,共4页 Journal of Harbin Institute of Technology
基金 "十一五"国家科技支撑计划课题(2006BAJ03A01-5) 建设部研究开发项目(2008-k3-10)
关键词 结构振动控制 LRB隔震结构 耦合地震作用 结构优化 遗传算法 vibration control base-isolated structure with LRB coupling effect of earthquake structural optimization genetic algorithm
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