Stochastic post-disaster functionality recovery of community building portfolios II: Application

被引:44
作者
Lin, Peihui [1 ]
Wang, Naiyu [1 ]
机构
[1] Univ Oklahoma, Sch Civil Engn & Environm Sci, Norman, OK 73019 USA
关键词
Recovery modeling; Building portfolio; Functionality state; Building restoration; Continuous time Markov Chain; Community resilience; RESILIENCE; MODEL;
D O I
10.1016/j.strusafe.2017.05.004
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Part I of this two-part paper introduced a building portfolio recovery model (BPRM) to forecast the stochastic recovery process of building portfolios within a community following an extreme hazard event. The BPRM models restoration of individual building-level functionalities as a discrete state, continuous time Markov Chain, while it models portfolio-level recovery by aggregating the building-level restoration processes in both temporal and spatial dimensions. In this paper, we illustrate the implementation of the BPRM to project the building portfolio recovery of a mid-size community following a predefined scenario earthquake. The recovery analysis integrates the engineering process of building reconstructions with available community resources and social-economic characteristics of different population groups. The spatial variations in recovery speed in different residential zones within the community reflect the disparities in resourcefulness and recoverability of homeowners with different social and economic status. In addition, sensitivity studies are performed to investigate the capability of the BPRM to quantify the impact of candidate pre-disaster mitigation strategies on the building portfolio recovery time and trajectory, illustrating the potential use of the BPRM in supporting risk-informed community resilience planning. (C) 2017 Elsevier Ltd. All rights reserved.
引用
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页码:106 / 117
页数:12
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