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《Earthquake Engineering and Engineering Dynamics》 2015-04
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Seismic damages to owner-built dwellings in the 2015 earthquake sequence in Nepal

QU Zhe;YANG Yongqiang;Key Laboratory of Earthquake Engineering and Engineering Vibration,Institute of Engineering Mechanics,CEA;  
The earthquake sequence in April and May,2015,including an Ms8. 1 main shock and three aftershocks of magnitudes greater than 7. 0,affected a wide area in central Nepal. Stone masonry and reinforced concrete( RC) frames are the two major structural systems for rural residences in the affected region. After summarizing the characteristics of the seismic damages to these systems in the earthquake sequence,damage ratios of the two structural systems are provided based on the field survey in various locations. The owner-built RC frames exhibited much smaller damage ratio than the stone masonry houses,although they do not conform to the Nepalese seismic provisions and their seismic performance may have been considered poor. Such RC frames have been widely built even in mountainous and poor regions. In addition,the current practice of quantifying seismic intensity by observed building damages may cause confusion especially if the seismic performance of the buildings widely varies or if the main shock is followed by strong aftershocks.
【Fund】: 中国地震局工程力学研究所基本科研业务费面上项目(2013B13);; 国家自然科学基金项目(51308514 51478441)
【CateGory Index】: TU352.1
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