详情

Sustainability-based Long-term Management of Bridges under Multi-hazard Exposure

项目名称：	Sustainability-based Long-term Management of Bridges under Multi-hazard Exposure
摘要：	Bridges are crucial elements in transportation networks. During their service life, these structures are subjected to several types of natural hazards that can affect their safety and sustainability. The current methods for optimum management of these structures fail to properly consider (a) the cumulative effects of natural hazards, (b) the effect of changing climate patterns, and (c) the comprehensive integration of sustainability and resilience measures. The proposed research addresses these shortcomings by constructing a sustainability-based framework for the optimum management of bridges under multi-hazard exposure. The simulation-based framework will consider the uncertainties associated with performance prediction under gradual deterioration (e.g., corrosion in the sub- and superstructure) and sudden hazards in evaluating the bridge performance. A simulation-based technique will be constructed for evaluating the bridge fragility (i.e., failure probability) under multi-hazard exposure. The results of these simulations will be used to perform probabilistic loss analysis integrating economic, social, and environmental sustainability metrics. This analysis will result in obtaining the long-term bridge sustainability-based risk profiles associated with exposure to possible hazards. A multi-criteria optimization will be implemented to establish optimum retrofit and repair activities (e.g., optimum times and types) which simultaneously minimize life-cycle cost and maximize sustainability metrics. The developed framework could be implemented by bridge officials to manage the existing stock of deteriorating bridges allowing them to reduce the life-cycle cost and improve bridge sustainability.
状态：	Completed
资金：	110000
资助组织：	Office of the Assistant Secretary for Research and Technology
管理组织：	Transportation Consortium of South-Central States
项目负责人：	Ahmed, Samir A
执行机构：	Oklahoma State University, Stillwater
主要研究人员：	Soliman, Mohamed
开始时间：	20170508
预计完成日期：	20181108
实际结束时间：	20181108