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Title:: Research on Earthquake Damage Matrix Correction of Brick-concrete Buildings in the Yunnan Province

Author(s):: MING Xiaona; ZHOU Yang; LU Yongkun; YANG Jianqiang; (Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)

摘要:: 根据云南省现有砖混结构房屋抗震设防情况将其分为未经抗震设防、有抗震构造措施和正规抗震设防3类。结合2000—2017年云南省内破坏性地震灾害损失评估资料,统计不同砖混结构房屋类型的破坏比,基于经验震害矩阵完善的方法推演震例稀缺烈度区的震害分布,得到了云南省完整的砖混结构房屋建筑震害矩阵,通过平均震害指数对比、震例对比验证了推演结果的可靠性。修正后的砖混结构房屋震害矩阵更能体现云南省现有砖混结构房屋的抗震能力,可用于云南省地震灾害损失预评估等。

Abstract:: Firstly,according to the seismic fortification situation of existing brick-concrete buildings in the Yunnan Province,we divided it into three types,such as without seismic fortification,seismic structure measures and regular seismic fortification. Secondly,combining with the destructive earthquake disaster losses data from 2000 to 2017,we statistic the damage ratio of different types of brick-concrete structures. Thirdly,we deduced the distribution of seismic damage in the intensity area with rare earthquakes by the method of perfecting the empirical seismic damage matrix,and obtained earthquake damage matrix of a complete brick and concrete building in Yunnan. Finally,the reliability of the derivation results was verified by the comparison of the average earthquake damage index and the earthquake case. The revised earthquake damage matrix of brick-concrete buildings is closer to the earthquake-resistant capacity of existing brick-concrete structures in Yunnan and can be used for pre-evaluation of earthquake disaster losses.