节点文献

拟合D-V-A联合谱及峰值速度的地震动调整方法

An adjusting method of ground motions for fitting D-V-A joint spectrum and peak velocity

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 SHENG Tao1,SHI Weixing1,XIE Yitong2,YUAN Jun3 (1.Research Institute of Structural Engineering and Disaster Reduction,Tongji University,Shanghai 200092,China;2.School of Civil Engineering,Xi’an University of Architecture & Technology,Xi’an 710055,China;3.Northwest Electric Power Design Institute,Xi’an 710075,China)

【机构】同济大学结构工程与防灾研究所；西安建筑科技大学土木工程学院；西北电力设计院；

【摘要】基于M allat算法,将地震动加速度时程采用2阶基数B-样条小波分解,以寻找对峰值速度及峰值加速度影响最大的小波分量,并在此基础上,通过改进调整地震动的时频小波分析法与时域叠加小波函数法,以实现对D-V-A联合谱、峰值加速度(PGA)及峰值速度(PGV)的拟合。算例结果表明,该方法具有很高的拟合精度。更多还原

【Abstract】 By discomposed real recorded earthquake ground motion into a finite number of wavelet components which represent different frequency bands through Mallat algorithm,the wavelet component which affects mostly the peak ground motion velocity(PGV)and peak ground motion acceleration(PGA)can be identified.And by improving the Time-Frequency wavelet analysis method(TFWA)and Time domain synthesizing wavelet method(TDSW),a new adjusting method of ground motion was proposed to match the target D-V-A combined spectra and PGA,PGV simultaneously.The results of the numerical example show this algorithm has high calculation precision.更多还原

【关键词】地震动； D-V-A联合谱；峰值速度；小波方法；
【Key words】 ground motions； D-V-A combined spectra； peak velocity； wavelet；

【基金】国家973重点基础研究发展计划项目(2007CB714202);国家自然科学基金项目面上工程项目(50478045)

【文献出处】世界地震工程 ,World Earthquake Engineering , 编辑部邮箱 ,2011年02期

【分类号】P315.8
【被引频次】1
【下载频次】102

知网节下载

节点文献中：

本文链接的文献网络图示:

本文的引文网络

节点文献