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Event-based assessment of seismic resilience in Mexican school buildings
Bulletin of Earthquake Engineering ( IF 3.8 ) Pub Date : 2020-08-28 , DOI: 10.1007/s10518-020-00938-5
Carlos González , Mauro Niño , Miguel A. Jaimes

This paper presents a methodology to quantify a proposed parameter defined as expected annual seismic resilience, which takes into account all possible events that affect a site of interest by following the next steps: (1) definition of seismic hazard, (2) definition of the exposure database, (3) computation of structural and human vulnerability, (4) estimation of seismic risk, (5) definition of rehabilitation strategies and (6) estimation of repairing times and required resources in the proposed rehabilitation process. In this study, consequential physical losses and indirect cost are not considered in the resilience computation. The methodology is applied to a case study of existing school buildings, located in Mexico City given its important seismic activity. The results are presented in annual resilience maps that will allow to graphically observe the distribution of resilient structures and use this information to take better decisions in disaster prevention and response. From this research it was found that a large percentage of the studied school buildings do not achieve an acceptable annual resilience value according to the rating proposed, which is important, since the seismic design codes do not explicitly consider resilience concepts. However, with the information of expected annual seismic resilience values in Mexico City, obtained in this research, it is possible to identify those buildings that require immediate attention associated to the lower resilience values so that they may be taken into consideration in the decision-making process of disaster prevention and response.



中文翻译:

基于事件的墨西哥教学楼抗震能力评估

本文提出了一种量化建议参数的方法,该参数定义为预期的年度地震复原力,它通过执行以下步骤考虑了所有可能影响感兴趣站点的事件:(1)地震危险的定义,(2)地震危险的定义暴露数据库;(3)计算结构和人为脆弱性;(4)评估地震风险;(5)制定修复策略;(6)评估拟议的修复过程中的修复时间和所需资源。在本研究中,弹性计算中未考虑相应的物理损失和间接成本。鉴于其重要的地震活动,该方法适用于位于墨西哥城的现有教学楼的案例研究。结果显示在年度抗灾力图中,可以以图形方式观察弹性结构的分布,并使用此信息在防灾和响应方面做出更好的决策。从这项研究中发现,根据提议的等级,大部分被研究的学校建筑未达到可接受的年度抗力值,这很重要,因为抗震设计规范未明确考虑抗力概念。但是,通过本研究获得的墨西哥城的年度抗震力预期值信息,可以确定那些需要立即关注较低抗震力值的建筑物,以便在决策时将其考虑在内。灾难预防和响应的过程。

更新日期:2020-08-28
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