01672041

Component

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

The oncoming natural hazards, especially floods, represent a serious threat to users of transportation infrastructure and societies in general. The state-of-the-art bridge management systems still do not comprehensively account for impacts of sudden events and there is a demand for a simplified methodology for quantitative assessment of a bridge performance over time on a network level, which will in turn lead to adequate performance measures with respect to flooding events. As a convenient tool for the assessment, the measure of vulnerability is suggested here as a top-level performance indicator. It is based on two values: the conditional probability of a bridge failure due to a flooding event of a certain magnitude and the related total consequences. The primary culprit for failures inflicted in floods is the local scour at bridge substructures. Here, the estimation of the conditional probability of a bridge failure is a multidisciplinary problem where the combined resistance of the supporting soil at substructures and the bridge is accounted via failure modes. The challenge is in setting the adequate vulnerability thresholds that trigger mitigation and preventative activities. Here the influence of a planned activity or an information update, on the assessment results must be taken into consideration in structuring of adequate quality control plans.

01658888

English

pp 59-66

2017-11

Transportation Research Circular

Eleventh International Bridge and Structures Management Conference

Digital/other

Figures; References; Tables

Bridge management systems; Flood damage; Flood protection; Floods; Highway bridges; Methodology; Risk assessment

Bridges and other structures; Highways; Hydraulics and Hydrology; Security and Emergencies

TRIS, TRB, ATRI

Jun 14 2018 8:56AM

• 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
• Optimal Retrofit Decision-Making for Bridge Systems Based on Multihazard Life-Cycle Cost Analysis
• 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