南京工业大学学报（自然科学版）2017，Vol.39Issue(1)：111-119,9.DOI:10.3969/j.issn.1671-7627.2017.01.018
基于差异谱的完全非平稳地震波与目标谱一致的调整方法
Adjusting method of fully nonstationary earthquakes compatible with target response spectrum based on difference spectrum
摘要
Abstract
A stochastic method for making earthquakes compatible with target response spectrum was proposed. In the meantime, the earthquakes had fully nonstationary characteristics. First, the difference spectrum was gotten by comparing the response spectra of a recorded ground motion and the design response spectrum, then generated difference earthquakes compatible with difference spectrum through spectral representation method; second, the probability density function of lognormal distribution was adopted to express intensity nonstationary characteristics; finally, obtained spectral compatible fully nonstationary earthquakes by adding different earthquakes to the recorded earthquake. The frequency nonstationary characteristics of simulated earthquakes were close to ground motion records, and the response spectrum of generated earthquakes fitted the target response spectrum well. Hence, the method can be used in structural seismic analysis.关键词
差异谱/完全非平稳特性/目标反应谱Key words
difference spectrum/fully nonstationary characteristics/target response spectrum分类
天文与地球科学引用本文复制引用
孔辰,王曙光,杜东升..基于差异谱的完全非平稳地震波与目标谱一致的调整方法[J].南京工业大学学报（自然科学版）,2017,39(1):111-119,9.基金项目
国家自然科学基金 （）
