Tornado fragility and risk assessment of an archetype masonry school building
Tornado fragility and risk assessment of an archetype masonry school building
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DOI：
10.1016/j.engstruct.2016.09.030
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发表时间：
2016-12-01
影响因子：
5.5
通讯作者：
van de Lindt, John W.
中科院分区：
文献类型：
--
作者：
Masoomi, Hassan;van de Lindt, John W.
龙卷风是一种发生率低、后果严重的灾害，不仅威胁建筑物居住者的生命安全，而且最近因单一事件造成数十亿美元的直接和间接损失。设计规范不考虑建筑物和其他结构（核设施除外）的龙卷风荷载，因为历史上认为发生率太低。基于性能的抗震设计的出现彻底改变了工程思维过程，因此建筑物业主可以考虑性能目标，使建筑物在极端危险中的表现比当前设计规范所观察到的更好。本文采用易损性分析方法，对一座砖石结构学校建筑在龙卷风风荷载作用下的性能进行了研究。龙卷风脆弱性评估方法描述沿着建议的损害状态，考虑在损失估计。一系列的砌体材料类型被认为是基于马萨诸塞州标准联合委员会（MSJC）的代码，以使在此开发的脆弱性适用于整个美国的一系列设计。(C)2016爱思唯尔有限公司版权所有
Tornadoes are a low-occurrence high-consequence hazard and not only threaten the life safety of building occupants but have recently resulted in billions of dollars in direct and indirect damages for single events. Design codes do not consider tornado loads for building and other structures (with the exception of nuclear facilities) because the occurrence rate has historically been considered too low. The advent of performance-based seismic design has revolutionized the engineering thought process and as a result building owners can consider performance objectives that enable a building to perform better in an extreme hazard than observed with current design code. In this paper, the performance of a masonry school building subjected to tornado wind loads is investigated using a fragility methodology. The tornado fragility assessment methodology is described along with proposed damage states for consideration in loss estimation. An array of masonry material types are considered based on the Masonry Standards Joint Committee (MSJC) code to enable applicability of the fragilities developed herein for a range of designs throughout the United States. (C) 2016 Elsevier Ltd. All rights reserved.