近断层脉冲型地震作用下几种基础隔震结构的动力响应分析
首发时间:2010-10-26
摘要:近几年来,地震给中国人民带来了巨大损失。结构的抗震问题一直是科研人员面临的重要课题,过去的设计理念是基于强震时结构发生破坏为前提,为保证上部结构的完整,科研人员提出了隔震这一解决方法。隔震结构的优越性最先在美国洛杉矶地震中得到验证,此后,科研人员研究出一系列隔震结构:基础隔震结构、被动复合隔震结构以及智能复合隔震结构。本文以一六层模型为例,对近断层脉冲型地震作用下几种隔震结构的动力反映进行了分析,对比其消能减震的效果,找出最有效的隔震结构。
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Dynamic Analysis of Base Isolated Structure Under Near-fault Pulse-like Ground Motions
Abstract:In recent years,earthquake brings huge losses to Chinese people.The aseismic question has been an important subject for scientific research personnel, the past design concept of is based on destroyed structure in earthquake.To ensure the integrity of the upper structure, researchers put forward a method "base isolation" to solve the question.Los Angeles Earthquake verified the superiority of base-isolation,and then,researchers bring out a series of structure:ordinary base-isolation,passive composite base-isolated structures and intelligent compasite base-isolated structure.In this paper,several base-isolated structures which have six stories under near-fault pulse-like ground is analyzed. By comparing the result,the author try to find the most effective base-isolated structure.
Keywords: near-fault pulse-like ground motions base isolation dynamic responses
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近断层脉冲型地震作用下几种基础隔震结构的动力响应分析
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