COIMPARISON OF THE DYNAMIC PARAMETERS EXTRACTED FROM WEAK , MODERATE AND STRONG MOTION RECORDED IN BUILDINGS
COIMPARISON OF THE DYNAMIC PARAMETERS EXTRACTED FROM WEAK , MODERATE AND STRONG MOTION RECORDED IN BUILDINGS
复制标题
建筑物弱、中、强运动记录中提取的动力参数对比
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
M. Çelebi
中科院分区：
文献类型：
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作者：
F. Dunand;P. Guéguen;P. Bard;J. Rodgers;M. Çelebi
环境振动分析被提议作为地震前后检查建筑物的替代方法。这种快速且低成本的方法非常适合需要检查大量建筑物的大规模研究。对于在结构中使用环境振动最常见的批评之一是振动水平非常低。由于环境振动的振幅范围较低（PGA<10g），通常预计从弱运动获得的动态特性与使用强运动（PGA>0.1g）获得的动态特性有显着差异。本文的目的是对十二座加州建筑和四座欧洲建筑的强、中和弱运动记录推导出来的结构动力特性进行比较。本研究与之前的大量调查有两个不同之处：（a）比较建筑物的数量较多； (b) 对于两座建筑物，有超过 10 次地震记录，可用于研究动态特性与震动强度的依赖性。
Ambient vibration analysis is proposed as an alternative way to inspect buildings before or after an earthquake. This fast and low-cost method is well-adapted to large-scale studies for which a large amount of buildings has to be checked. One of the most common critics usually done on the use of ambient vibrations in structures is the very low level of vibrations. Because of the low amplitude range of the ambient vibration (PGA<10g), dynamic characteristics obtained from weak-motion are generally expected to be significantly different from those obtained using strong-motion (PGA>0.1g). The objective of this paper is to present a comparison of the structural dynamic characteristics deduced from strong, moderate and weak motion recordings for a set of twelve Californian buildings and four European buildings. The present study differs from numerous previous investigations in two aspects: (a) the number of compared building is larger; and (b) for two buildings, more than 10 earthquakes records are available, which allows to investigate the dependence of dynamic characteristics with shaking intensity.