同济大学学报（自然科学版）2017，Vol.45Issue(10)：1415-1420,6.DOI:10.11908/j.issn.0253-374x.2017.10.001
基于能量分布的地震动聚类与反应谱特征周期的确定
Ground Motion Clustering Method Based on Energy Distribution and Determination of Characteristic Periods
摘要
Abstract
Seven thousand seven hundred and seventy eight ground motion records were collected.For each group of seismic ground motion,the spectral characteristics were analyzed.A type of ground motion clustering method based on energy distribution was introduced.According to this method,the records belonging to the same site type can be divided into three parts.For each group of seismic ground motion,the characteristic periods were proposed based on the Chinese seismic resistance code.Besides,the differences between the proposed value and the code value were analyzed.The research shows that,compared with the proposed values,the code characteristic periods of group 1 and group 2 are bigger,while the values of group 3 are smaller.关键词
特征周期/地震动分组/能量集中频段/聚类分析Key words
characteristic period/ground motion/energy concentration/duster analysis分类
天文与地球科学引用本文复制引用
丁艳琼,李杰..基于能量分布的地震动聚类与反应谱特征周期的确定[J].同济大学学报（自然科学版）,2017,45(10):1415-1420,6.基金项目
国家自然科学基金(51538010) （51538010）
