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2017年2月8日,云南鲁甸发生M_S4.9地震,本次地震灾区位于2014年“8·03”鲁甸M_S6.5地震的高烈度区,属于地震恢复重建全覆盖区域,灾区房屋结构以砖混结构为主,针对于该类房屋抗震性能较好的情况,依据烈度评定相关规范,以现场入户调查为基础,重点关注房屋薄弱和结构不合理部位震害现象,结合新老房屋震害特征综合评定烈度。
On February 8, 2017, an M_S4.9 earthquake occurred in Ludian, Yunnan Province. This earthquake-stricken area is located in the high intensity region of the Lu-Ms M_S6.5 earthquake in August 2003, and belongs to the full coverage of earthquake recovery and reconstruction. The affected areas The structure of the house is brick-concrete structure. Aiming at the better seismic performance of such buildings, based on the relevant specifications of the intensity assessment and on the basis of site survey, the paper focuses on the damage caused by weak houses and unreasonable structures, Earthquake damage characteristics of old houses Comprehensive assessment of intensity.