Hurricane Risks and Economic Viability of Strengthened Construction
Hurricane Risks and Economic Viability of Strengthened Construction
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DOI：
10.1061/(asce)1527-6988(2003)4:1(12
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发表时间：
2003-02
影响因子：
2.7
通讯作者：
M. Stewart;D. Rosowsky;Zhigang Huang
中科院分区：
文献类型：
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作者：
M. Stewart;D. Rosowsky;Zhigang Huang
本文介绍了一个程序，评估现有的住宅结构的脆弱性的变化对飓风引起的建筑物损坏和预期的保险损失的影响。提出了两个基于ARBO的模型，用于模拟现有建筑存量的脆弱性的变化，由于建筑围护结构性能的改善，现有的和新的住宅建设。然后可以得到结构脆弱性随时间的变化对预期保险损失的影响。改造费用或更新新建筑物的额外费用可列入飓风损害风险-成本-效益分析，以评估这种情况和其他情况的经济可行性。“经济可行区”的开发，说明在图形的方式是否改造现有的住宅建筑是具有成本效益的。例如，在某些情况下，高达初始建筑成本40%的改造成本在经济上可能是可行的。风险分析还可以计算实现经济可行性的时间。
This paper describes a procedure for evaluating the effect of changes to existing residential structural vulnerability on hurricane-induced building damage and expected insurance losses. Two scenario-based models are proposed for modeling changes in the vulnerability of the existing building stock due to improvements in building envelope performance, for both existing and new residential construction. The influence of changes in structural vulnerability over time on expected insurance losses can then be obtained. The cost of retrofit or additional cost to upgrade new construction can be included in the hurricane damage risk-cost-benefit analysis to assess the economic viability of this and other scenarios. ''Zones of economic viability'' are developed that illustrate in a graphical manner whether retrofitting of existing residential construction is cost-effective. For example, in some cases retrofit costs of up to 40% of initial building costs may be economically viable. The risk analysis also enables the time to economic viability to be calculated.