Ground motion prediction equation for the Kathmandu Valley, Nepal based on strong motion records during the 2015 Gorkha Nepal earthquake sequence

被引：10

作者：

Mori, Takuho ^{[1
]}

Shigefuji, Michiko ^{[1
]}

Bijukchhen, Subeg ^{[2
]}

Kanno, Tatsuo ^{[1
]}

Takai, Nobuo ^{[3
]}

机构：

[1] Kyushu Univ, Fac Human Environm Studies, Fukuoka, Japan

[2] Khwopa Engn Coll, Dept Civil Engn, Bhaktapur, Nepal

[3] Hokkaido Univ, Fac Engn, Sapporo, Hokkaido, Japan

来源：

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2020年 / 135卷

基金：

日本科学技术振兴机构; 日本学术振兴会;

关键词：

2015 Gorkha Nepal earthquake sequence; Long-period ground motion; Kathmandu Valley; Site amplification; Ground motion prediction equation; Bedrock depth;

D O I：

10.1016/j.soildyn.2020.106208

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Single-site ground motion prediction equations (GMPEs) for the acceleration response spectra of each site in the Kathmandu Valley was constructed using strong motion records of magnitude 5.0 through 7.3 the 2015 Gorkha Nepal earthquake aftershocks observed at eight sites in the Kathmandu Valley. The regression coefficient for the site term has a strong correlation with the bedrock depth at each site in the Kathmandu Valley. Therefore, a new GMPE applicable to the whole Kathmandu Valley in the long-period range of 1-10 s was generalized using the bedrock depth as a parameter. We applied this GMPE to the largest aftershock. Consequently, at each sedimentary station, the residuals of the predicted value by GMPE are smaller than those predicted by the existing GMPE, and the peaks of the observed response

引用

页数：10

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