摘要
地震动记录是进行结构时程反应分析的重要输入数据。由选取不同地震动记录所计算的时程反应分析结果之间的差异非常显著。本文依据我国现行建筑结构抗震设计规范规定的在时程反应分析中选取地震动的原则,基于动态时间规整算法提出了一种在全周期范围内匹配目标设计谱的地震动选取方法。该方法以DTW距作为控制加速度反应谱与目标设计谱匹配程度的标准参数。为便于在实际中应用,对于每一种不同形式的目标设计谱,本文均给出了10条与该目标设计谱最为匹配的地震动记录。为验证本文方法的有效性,最后以3个不同自振周期的框架结构为例,对本文方法进行了验证。
Ground motion records are important input data for structural time history response analysis.The difference between the results of the time history response analysis caused by the selection of different ground motion records is significant.Based on the principle of selecting ground motion in the time history response analysis specified in Chinese current seismic design code for building structures,this paper proposes a method for matching and screening ground motions in the full period range of the target design spectrum based on the dynamic time warping algorithm.The method uses the DTW distance as the parameter of controlling the degree of matching between the acceleration response spectrum and the target design spectrum.In order to facilitate the practical application,for each different form of target design spectrum,this paper gives 10 ground motion records that best match the design spectrum.In order to verify the effectiveness of the proposed method,this paper used three framework structures with different periods of natural vibration as an example to verify the proposed method.
作者
刘浩
朱敬洲
徐龙军
赵国臣
陈亚彬
LIU Hao;ZHU Jingzhou;XU Longjun;ZHAO Guochen;CHEN Yabin(Harbin Institute of Technology(Weihai),Department of Civil Engineering,Weihai 264209,China;Collaborative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone,Qingdao University of Technology,Qingdao 266033,China)
出处
《地震工程与工程振动》
CSCD
北大核心
2019年第5期223-233,共11页
Earthquake Engineering and Engineering Dynamics
基金
山东省科技发展计划项目(2014GSF122001)
国家自然科学基金项目(51678208)~~
关键词
地震动选取
动态时间规整算法
时程反应分析
设计谱
ground motion selection
dynamic time warping algorithm
time history response analysis
design spectrum
