01672051

Component

http://www.trb.org/Main/Blurbs/176806.aspx

Various types of hazards each with the potential to occur multiple times during the long service life of bridges may threaten the functionality of transportation systems and significantly impact the society. In hazard-prone areas, as the recovery time becomes longer, the likelihood of other hazard events occurring before the system is recovered increases. This can result in the accumulation of damage and higher vulnerability of the infrastructure. This study presents a multihazard life-cycle cost assessment framework to find optimal solutions for retrofit strategies. The possibility of multiple occurrences of multiple types of hazard incidents is probabilistically incorporated in the framework. This methodology accurately determines the expected life-cycle cost of hazard-induced consequences by comprehensively including direct and indirect incurred costs. The presented framework is applied to a realistic multispan reinforced concrete bridge in California that is exposed to flood and earthquake hazards. The total life-cycle cost of several practical retrofit strategies are evaluated and compared for a wide range of bridge service lives. A sensitivity analysis is also performed to characterize the impacts of several key variables on the expected life-cycle cost of the bridge and the optimal retrofit plans.

01658888

English

pp 160-173

2017-11

Transportation Research Circular

Eleventh International Bridge and Structures Management Conference

Digital/other

Figures; References

Bridge management systems; Decision making; Earthquakes; Floods; Hazards; Highway bridges; Life cycle costing; Retrofitting; Service life

Bridges and other structures; Highways; Maintenance and Preservation

TRIS, TRB, ATRI

Jun 14 2018 9:48AM

• AASHTO Manual for Bridge Evaluation Update to Chapter 3: Bridge Management Systems: A Practical Tour
• Blending Science and Engineering: Laguna Creek Bridge Bank Protection
• Bridge Model Validation at Indiana Department of Transportation
• Developing a Program to Rank New York City Bridges by Benefit–Cost Ratio: Lessons Learned from New York City Department of Transportation
• Development of Limit State–Based Structural Health Monitoring Thresholds for Efficient Reporting and Alerting
• Exploring the U.S. Interstate Highway Bridge Maintenance Expenditure Versus Condition Trade-Off Relationship Using Aggregate Data
• Framework for Objective Risk Assessment in Bridge Management
• Highlights from the 11th International Bridge and Structures Management Conference: Putting Bridge Management into Practice
• Implementation of AASHTOWare Bridge Management 5.2.3 to Meet Agency Policies and Objectives for Bridge Management and Address FHWA Requirements
• Implementation of Road Structure Management System KUBA: Experience Report
• Migration Probability Matrix for Bridge Element Deterioration Models
• Modeling of Life-Cycle Alternatives in the National Bridge Investment Analysis System
• Novel Cost-Based Performance Index for Condition Assessment of Bridges: Case Study for an Ohio Bridge
• Risk Assessment for Bridge Management Systems
• Robust Registration Algorithm for Performing Change Detection of Highway Bridges Using 3-D Laser Scanning Data
• The Evolution of Structure Asset Management in Wisconsin: Practice and Research
• Validating Common Collapse Conjectures in U.S. Bridges
• Visual Inspections and Key Performance Indicators: Bridging the Gap
• Vulnerability: Top-Level Performance Indicator for Bridges Exposed to Flooding Hazards