摘要
分析研究了花莲地震的地震工程参数的分布特征,主要包括PGA、PGV、PGD、Arias烈度、卓越周期等。结合"台湾地区实验研究院"的花莲地震概要内容分析此次地震的地震灾害与工程地震动参数特征分布的相关性。通过分析发现PGA、PGV、PGD三个参数数值在台站编号HWA007至台站HWA023内,在E-W方向分量的数值整体大于在N-S方向分量数值,这种差异可能也间接导致地震中多栋楼房的倒塌; Arias烈度的数值在两个方向分量上差异较小;卓越周期在E-W方向分量的数值整体大于在N-S方向分量值;地震动参数在不同方向分量的差异也间接证明更容易导致软脚类建筑物的倒塌。
The distribution characteristics of seismic engineering parameters of this earthquake were analyzed and studied,including PGA,PGV,PGD,arias intensity,predominant period,etc. Based on the Hualien earthquake summary of Taiwan region national experimental research institute( NAR labs),the correlation between the earthquake disaster and the distribution of engineering ground motion parameters is analyzed. Through analysis,we found that the parameters values of PGA,PGV and PGD,in which station number are in the station number HWA007 to the station HWA023,in the E-W direction components are larger than those in the N-S direction. This difference may also lead to the collapse of Soft footed building in the earthquake;the Arias intensity difference is small between the two direction components. The numerical value of the predominant period in the E-W direction component is larger than the N-S direction. The difference ground motion characteristic in different directions indirectly proves that it is more likely to cause collapse of soft foot buildings.
作者
李宗超
陈学良
吴健
吴清
Li Zongchao;Chen Xueliang;Wu Jian;Wu Qing(Institute of Geophysics,China Earthquake Administration,Beijing 100081,China)
出处
《建筑结构》
CSCD
北大核心
2018年第S2期308-313,共6页
Building Structure
基金
中国地震局地球物理研究所基本科研业务费专项(DQJB18B20
DQJB17C08)
关键词
花莲地震
水平地震动
工程参数
特征分析
软脚建筑
Hualian earthquake
horizontal ground motion
engineering parameters
characteristic analysis
soft footed building
