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(昆明理工大学工程抗震研究所, 昆明 650500)
[摘要]从1993年1月27日的云南普洱6.3级地震到2015年3月1日的云南沧源5.5级地震,统计了云南省80次成灾地震,这些地震对云南造成了严重的灾害破坏和经济损失,很多农村地区是明显的受灾严重区,受灾面积较广泛。通过对这80次地震的房屋震害统计资料,统计了基于不同遭遇烈度下云南农村地区的各种类型房屋在五个破坏等级下的易损性矩阵,并求出不同结构在不同遭遇烈度的破坏比累积概率,绘制出其易损性曲线进行对比研究。参考这些云南农村地区的震害情况,为以后农村房屋抗震研究提供可靠地数据,总结云南农村地区现在抗震设防状况。
[关键词]云南农村建筑; 结构类型; 破坏比; 易损性曲线; 易损性分析
中图分类号: TU315 文献标识码: A文章编号: 1002-848X(2016)S1-0379-05
Study on the vulnerability of buildings in rural areas of Yunnan province
based on seismic damage statistics since 1993
He Junhong, Pan Wen, Zhang Jian, Lin Haojun
(Institute of Earthquake Engineering, Kunming University of Science and Technology, Kunming 650500, China)
Abstract: There are 80 damaged earthquake counted from the 6.3 magnitude earthquake of Puer on January 27, 1993 to 5.5 magnitude earthquake of Cangyuan on March 1, 2015. These earthquakes cause serious damages and economic losses on Yunnan. Many rural areas are significantly serious disaster-stricken with extensive disaster-stricken areas. Based on housing seismic damage statistics about the 80 earthquakes, the vulnerability matrix of various types of housings in rural areas in Yunnan province under five damage grades under the different seismic intensities was counted. The cumulative probability of damage ratio of different structures under different seismic intensities was calculated, and relevant vulnerability curves were drawn to compare and study. Based on the seismic damage situations in these rural areas of Yunnan, reliable data can be provided for the future seismic study of rural housings and can be used to sum up the current seismic precautionary situation in rural areas of Yunnan.
Keywords: Yunnan rural building; structure type; damage ratio; vulnerability curve; vulnerability analysis
作者简介: 何俊宏,硕士研究生,Email:497691267@qq.com。