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Title:: Investigation and Analysis of the Current Situation of Buildings' Seismic Capacity in Hongta District of Yuxi City,Yunnan

作者:: 周洋¹; 明小娜¹; 张鹏²; 杨健强¹; 谢巍¹; (1.云南省地震局,云南昆明 650224; 2.华能澜沧江水电股份有限公司,云南昆明 650206)

Author(s):: ZHOU Yang¹; MING Xiaona¹; ZHANG Peng²; YANG Jianqiang¹; XIE Wei¹; (1.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)(2.Huaneng Lancang River Hydropower INC,Kunming 650206,Yunnan,China)

摘要:: 运用普查与详查相结合的方法收集云南玉溪红塔城区各乡镇建筑基础资料,分析城区建筑结构特点及其抗震现状; 利用抗震能力指数和结构易损性建立建筑抗震能力评估公式,并计算研究区遭遇不同地震烈度的区域建筑综合抗震能力数值。结果表明:红塔城区各乡镇遭遇地震烈度为Ⅵ度、Ⅶ度和Ⅷ度时,区域建筑综合抗震能力等级分别为较优、良好和中等; 遭遇地震烈度为Ⅸ度或Ⅹ度时,区域建筑综合抗震能力等级为较差。

Abstract:: The building data of Hongta District of Yuxi City,Yunnan Province are collected by means of general survey and detailed survey.Then,on the basis of the data,the characteristics of the building structures and their seismic performance in Hongta District are summarized.And the evaluation formula of the buildings' seismic capacity is established based on the seismic capacity index and the structural vulnerability matrix.The comprehensive seismic capacity values of the buildings in Hongta District are calculated on condition at that these buildings are hit by the earthquake intensity ranging from VI to Ⅹ degrees.The results show that the seismic capacity of the buildings is rated as “perfect”,“better” and “moderate” when the buildings are subjected to Intensity Ⅵ,Ⅶ and Ⅷ.When they are stricken by Intensity Ⅸ or Ⅹ,the seismic capacity of these buildings is rated as “poor”.