考虑幅值谱与相位谱的人造地震动模拟与反应谱拟合

英文篇名：Generation of Response-Spectrum-Compatible Ground Motions Consider the Phase Spectrum and the Amplitude Spectrum
中文刊名：工程抗震与加固改造
英文刊名：Earthquake Resistant Engineering and Retrofitting
作者：韦征 ; 叶继红 ; 包伟 ; 沈世钊
英文作者：Wei Zheng~1 ; Ye Ji-hong~1 ; Bao Wei~1 ; Shen Shi-zhao~2(1.College of Civil Engineering ; Southeast University ; Nanjing 210096 ; China ; 2.College of Civil Engineering ; Harbin Technology University ; Harbin 150090 ; China)
中文关键词：幅值谱 ; 相位谱 ; 地震动模拟 ; 反应谱
英文关键词：response-spectrum ; simulation of ground motions ; the phase spectrum ; the amplitude spectrum
出版日期：2007-04-28
机构：东南大学土木工程学院,东南大学土木工程学院,东南大学土木工程学院,哈尔滨工业大学土木工程学院江苏南京210096,江苏南京210096,江苏南京210096,黑龙江哈尔滨150090
年：2007
期：02
出版单位：工程抗震与加固改造

摘要

本文根据反应谱、功率谱和傅里叶幅值谱间的数学关系以及三角级数迭加来模拟地震动加速度,并通过对6s以后反应谱曲线的设定和对幅值谱与相位谱的调整,得出了可较好地拟合目标反应谱的地震动加速度时程。对修正分量的个数、调整相位谱的条件、幅值谱与相位谱迭代修正顺序亦做了研究,讨论了幅值谱与相位谱调整的效果,给出了具体拟合的建议。
Based on the relationships of the response spectrum,power density spectrum and Fourier amplitude spectrum,triangle series superposition method is used to generate the acceleration of ground motions in this paper.Suggesting the response spectrum shape which corresponds to the long period part(longer than 6s),as well as adjusting the phase spectrum and the amplitude spectrum,the generated ground motions can match the target response spectrum better.Furthermore,there are some useful conclusions about how to determine the number of adjusted component,the condition of adjusting the phase spectrum,sequence of the phase spectrum and the amplitude spectrum adjusting.

引文

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