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Earthquakes and Structures Volume 20, Number 6, June 2021 , pages 617-626 DOI: https://doi.org/10.12989/eas.2021.20.6.617 |
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Ground motion characteristics of the 2015 Gorkha earthquake sequence |
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Yi Pan, Zhiwang Chang, Cuihua Li and Shengjie Shi
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| Abstract | ||
| On 25 April - 12 May 2015, a series of large earthquakes struck the north-central part of Nepal, causing not only a substantial number of casualties, but also heavy damage to the building structures and infrastructure facilities. Up to now, most of seismic reconnaissance studies about this event have attributed the structural damage and life losses to the relatively loose implementation of the building design codes in Nepal, as most of those damaged structures were largely owner-built. Based on the quite limited ground motion data, this paper investigated the primary characteristics of the Nepal earthquake sequence. It is highlighted that the pulse-like features are significant at both the soft and rock sites, which is also responsible for the unique characteristics of the main-shock ground motions other than site effects. | ||
| Key Words | ||
| Nepal earthquake; main-shock ground motions; pulse-like; aftershock ground motions | ||
| Address | ||
| Yi Pan:School of Civil Engineering, Southwest Jiaotong University, Chengdu, China/ Key Laboratory of High-speed Railway Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, China Zhiwang Chang:School of Civil Engineering, Southwest Jiaotong University, Chengdu, China/ Key Laboratory of High-speed Railway Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu, China Cuihua Li:College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou, China Shengjie Shi:Chongqing Construction Science Research Institute, Chongqing, China | ||