Risk-Based Decision-Making for Multi-Hazard Mitigation for Wood-Frame Residential Construction
Risk-Based Decision-Making for Multi-Hazard Mitigation for Wood-Frame Residential Construction
复制标题
基于风险的木框架住宅建筑多重灾害缓解决策
DOI：
--
复制
发表时间：
2009
期刊：
影响因子：
--
通讯作者：
B. Ellingwood
中科院分区：
文献类型：
--
作者：
Yachao Li;B. Ellingwood
摘要在美国，飓风、地震和其他自然灾害对木结构住宅建筑造成的破坏可能是巨大的。为了以成本效益高的方式减轻自然灾害的风险，决策工具必须基于更好地了解不同级别的抗灾设计实践的住宅建筑性能。本文的重点是展示一个框架，利用多危害性能和风险评估工具，住宅建筑施工的最佳工程决策。该框架包含以下主要内容：自然灾害发生和强度的概率模型;表示损坏条件概率的结构系统脆弱性模型;以及不同服务间隔期间预期总成本模型。风险框架是用一个典型的单层木结构住宅建筑在查尔斯顿，南卡罗来纳州，这是暴露于重大的飓风和地震灾害。这一框架可以支持改进建筑做法、保险业适当承保以及规划社区对自然灾害的反应。
Abstract Damage to wood-frame residential construction in the United States caused by hurricanes, earthquakes and other natural hazards can be significant. To mitigate risk from natural hazards cost effectively, decision-making tools must be based on a better understanding of residential building performance with different levels of hazard-resistant design practices. The focus of this paper is to demonstrate a framework for optimal engineering decision-making utilising multi-hazard performance and risk assessment tools for residential building construction. The framework contains the following key ingredients: probabilistic modelling of the occurrence and intensity of the natural hazard; structural system fragility modelling to represent the conditional probability of damage; and a model of total expected cost during different service intervals. The risk framework is illustrated using a typical one-storey wood-frame residential building in Charleston, South Carolina, that is exposed to significant hurricane and earthquake hazards. This framework can support improvements in construction practices, appropriate underwriting by the insurance industry, and planning community response to natural hazards.