| 2013年木里、盐源交界地震震中区建筑物抗震性能分析 |
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| 引用本文： | 褚孝远,戴仕贵,刘玉法.2013年木里、盐源交界地震震中区建筑物抗震性能分析[J].四川地震,2014(3):20-23. |
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| 作者姓名： | 褚孝远 戴仕贵 刘玉法 |
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| 作者单位： | 四川省地震局,四川成都610041 |
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| 摘 要： | 2013年11月22日,木里、盐源交界处先后发生Ms3.4、Ms 4.1及Ms3.7级地震,地震造成当地自建房屋破坏,震中区建筑类型主要为土木结构、夯土墙结构及木结构。本文在现场调查的基础上,对不同类型建筑物的破坏特征进行了分析,给出了地震烈度图,分析了建筑物破坏原因,指出土木结构及夯土墙结构是农村自建房屋中抗震最不利建筑,木结构房屋抗震性能相对较好。房屋抗震性能不佳是此次地震震害较重的主要原因。
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| 关 键 词： | 木里盐源地震 本土建筑 抗震 |
The earthquake resistance behavior of vernacular buildings in the 2013 Muli-Yanyuan earthquake sequence |
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| CHU Xiao-yuan,DAI Shi-gui,LIU Yu-fa.The earthquake resistance behavior of vernacular buildings in the 2013 Muli-Yanyuan earthquake sequence[J].Earthquake Research in Sichuan,2014(3):20-23. |
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| Authors: | CHU Xiao-yuan DAI Shi-gui LIU Yu-fa |
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| Institution: | ( Earthquake Administration of Sichuan Province,Sichuan Chengdu 610041 ,China) |
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| Abstract: | A seismic sequence hit the border area between Muli and Yanyuan counties with magnitude of Ms3.4, Ms4.4 and Ms3.7 respectively on 22 December 2013. The earthquakes resulted in massive damages and destruction to vernacular buildings. These buildings are almost characterized by the features of Yi nationality and the Mongol nationality. Soon after the Seismic events, the authors investigated the damage situation distributed in different parts of epicenter area in Xiangjiao town and carried out the damage survey. According to the field survey, the buildings consist of mainly timber structure, earth wall structure and earth -timber structure. The performance of different types of buildings and reasons resulting in damage are discussed and an isoseismic map is provided prima- rily. The observed earthquake resistance behavior of earth wall structure and earth - timber structure are quite poor, which indicates the buildings cannot support the seismic loading. However, the timber buildings survive in the events and perform satisfactorily. It is an urgent need to enhance the capacity of earthquake resistance of rural building in seismically prone areas. |
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| Keywords: | Muli-Yanyuan earthquake vernacular building damage to building |
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