|本期目录/Table of Contents|

[1]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(01):111-119.[doi:10.3969/j.issn.1671-7627.2017.01.018]
 KONG Chen,WANG Shuguang,DU Dongsheng.Adjusting method of fully nonstationary earthquakes compatible with target response spectrum based on difference spectrum[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2017,39(01):111-119.[doi:10.3969/j.issn.1671-7627.2017.01.018]
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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()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
39
期数:
2017年01期
页码:
111-119
栏目:
出版日期:
2017-01-21

文章信息/Info

Title:
Adjusting method of fully nonstationary earthquakes compatible with target response spectrum based on difference spectrum
文章编号:
1671-7627(2017)01-0111-09
作者:
孔辰王曙光杜东升
南京工业大学 土木工程学院,江苏 南京 211800
Author(s):
KONG Chen WANG Shuguang DU Dongsheng
College of Civil Engineering, Nanjing Tech University, Nanjing 211800, China
关键词:
差异谱 完全非平稳特性 目标反应谱
Keywords:
difference spectrum fully nonstationary characteristics target response spectrum
分类号:
P315.3
DOI:
10.3969/j.issn.1671-7627.2017.01.018
文献标志码:
A
摘要:
提出了一种使地震波拟合目标反应谱的随机方法,该地震波同时具有完全非平稳特性。首先以实际地震记录为基础,对比其反应谱与目标反应谱得到差异谱,以差异谱为目标利用谱表现方法生成与差异谱吻合的差异地震波,并用对数正态分布的概率密度函数来表征地震动的强度非平稳特性,再叠加实际地震记录和生成的差异地震波得到与目标反应谱一致的完全非平稳地震波。由此得到的地震波频率非平稳特性比较接近实际地震记录,且其反应谱与目标反应谱吻合较好,可将其用于工程结构的抗震分析中。
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.

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备注/Memo

备注/Memo:
收稿日期:2015-05-18
基金项目:国家自然科学基金(51178219)
作者简介:孔辰(1988—),男,山东济宁人,硕士,主要研究方向为工程抗震; 王曙光(联系人),教授,E-mail:720108@vip.sina.com.
引用本文:孔辰,王曙光,杜东升,等.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..
更新日期/Last Update: 2017-01-15