Seismic intensity map and typical structural damage of 2010 Ms 7.1 Yushu earthquake in China

Maosheng Gong (), Shibin Lin (), Jingjiang Sun (), Shanyou Li (), Junwu Dai () and Lili Xie ()

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2015, vol. 77, issue 2, 847-866

Abstract: On April 14, 2010, a devastating Ms 7.1 earthquake occurred in Yushu, China. In the most severely struck area of Jiegu Town, approximately 94 % of the structures were damaged. A seismic intensity map was obtained based on field investigation data of structural damage in 63 residential areas, and the differences in structural damage in four intensity regions were quantitatively compared using a seismic capacity index and a damage index. The typical damage for five types of structures in the epicentral area of Jiegu Town was described and summarized in detail. Some recommendations for improving seismic capacity of buildings are provided; they include avoiding mountainous topography, non-uniform materials, and irregular layouts, as well as considering an appropriate arrangement of structural columns and belt courses for hollow concrete block and brick masonry structures. This paper provides valuable information for structural seismic design, post-earthquake reconstruction, and related work. Copyright The Author(s) 2015

Keywords: Yushu earthquake; Earthquake disaster survey; Seismic intensity map; Typical structural damage; Structural seismic capacity (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1007/s11069-015-1631-z

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