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原文传递 Methodology for Regional Multihazard Hurricane Damage and Risk Assessment

题名：	Methodology for Regional Multihazard Hurricane Damage and Risk Assessment
正文语种：	eng
作者：	Nofal, Omar M.;van de Lindt, John W.;Do, Trung Q.;Yan, Guirong;Hamideh, Sara;Cox, Daniel T.;Dietrich, J. Casey
作者单位：	Colorado State Univ Dept Civil & Environm Engn Ft Collins CO 80523 USA;Colorado State Univ Dept Civil & Environm Engn Ctr Excellence Risk Based Community Resilience Pl Ft Collins CO 80523 USA;Univ Louisiana Lafayette Dept Civil Engn Lafayette LA 70503 USA;Missouri Univ Sci & Technol Dept Civil Architectural & Environm Engn St Rolla MO 65409 USA;SUNY Stony Brook Sch Marine & Atmospher Sci New York NY 11790 USA;Oregon State Univ Dept Civil & Construct Engn Civil Engn Corvallis OR 97331 USA;North Carolina State Univ Dept Civil Construct & Environm Engn Raleigh NC 27607 USA
关键词：	Hurricane vulnerability;Fragility analysis;Multihazard hurricane;Damage analysis;Loss analysis
摘要：	Hurricanes are devastating natural hazards that often cause damage to the built environment as a result of their loadings, which include storm surge, waves, and wind, often in combination. Modeling these hazards individually and their effects on buildings is a complex process because each loading component within the hazard behaves differently, affecting either the building envelope, the structural system, or the interior contents. Realistic modeling of hurricane effects requires a multihazard approach that considers the combined effects of wind, surge, and waves. Previous studies focused primarily on modeling these hazards individually, with less focus on the multihazard impact on the whole building system made up of the combination of the structure and its interior contents. The analysis resolution used in previous studies did not fully enable hurricane risk assessment through a detailed investigation of the vulnerability at the component-level or subassembly-level (a group of components such as interior contents, structural components, or nonstructural components). To address these research gaps, a robust multihazard hurricane risk analysis model that uses high-resolution hazard, exposure, and vulnerability models was developed. This model uses a novel approach to combine the storm surge and wave fragility functions with a suite of existing wind fragilities to account for structural damage and then combines them with another suite of flood-based fragilities to account for interior content damage. The proposed vulnerability model was applied to the state of North Carolina as an example of a regional-scale assessment to demonstrate the ability of the method to predict damage at the building level across this large spatial domain. This model enables better understanding of the damages caused by hurricanes in coastal regions, thereby setting initial postimpact conditions for community resilience assessment and investigation of recovery policy alternatives.
出版年：	2021
期刊名称：	Journal of structural engineering
卷：	147
期：	11