01475324

Component

https://doi.org/10.3141/2360-05

http://scholar.google.com...jdin&publication_year=2013

To improve the allocation of funds for the maintenance and risk mitigation of transportation infrastructure, there is a dire need for a simplified, yet sufficiently accurate, methodology to estimate bridge vulnerability to scour. The methodology should make use of existing data and indicate the basic variables needed to assess the vulnerability of bridges located around a future expressway in southeastern Serbia. The first part of the paper discusses the identification of possible modes of bridge failure caused by scouring that depend on soil, structure, and river hydraulic properties. The degradation of soil parameters is assumed to be the main cause of bridge failure. The capacity of a bridge to withstand a certain amount of structural damage governs the direct and indirect costs attributable to bridge failure; the subsequent work zones related to rehabilitation reduce the performance of the whole network. In the second part of the paper, a simulation of the redistribution of traffic flows is described for several possible scenarios; the simulations use state-of-the-art software VISUM, which was developed for computer-aided transportation planning and analysis. The simulated scenarios include the partial and full closure of road links as a result of bridge failures. The simulations confirmed that the most significant contribution to indirect costs stems from the increase in the total travel time of all network users.

01500226

13-0191

English

pp 36–44

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309286862

Print

Figures (4) ; Maps; References (30) ; Tables (1)

Bridge foundations; Failure analysis; Reinforced concrete bridges; Risk assessment; Scour; Soil structure interaction; Traffic diversion

Serbia

Bridges and other structures; Highways; Maintenance and Preservation; I42: Soil Mechanics

PRP, TRIS, TRB, ATRI

Feb 5 2013 12:11PM

• Defining Bridge Preservation by Action Type
• Development of Bridge Management Components That Facilitate Decision Making
• Fatigue Testing and Structural Health Monitoring of Retrofitted Web Stiffeners on Steel Highway Bridges
• Guidelines for Thermographic Inspection of Concrete Bridge Components in Shaded Conditions
• Holistic Approach to Maintenance and Preservation of Transportation Infrastructure
• Modeling Hurricane Hazards and Damage on Florida Bridges
• Modeling the Risk of Advanced Deterioration in Bridge Management Systems
• Performance Measures for Bridge Preservation
• Test Method to Assess Bonding Characteristics of Membrane Layers in Wearing Course on Orthotropic Steel Bridge Decks