Evaluating the Load Carrying Capacity of Bridges Without Plans Using Field Test Results
Bridge load rating has become an integral part of bridge management in the United States. Ratings are used as a means to characterize the load carrying capacity of bridges, to allocate funding for the repair and rehabilitation of bridges and to approve permit vehicles and superload crossings. Most load ratings are calculated using simple analytical models that are based on information obtained from the structural plans for the bridge; however, for some bridges, particularly for many smaller, older bridges, structural plans may no longer be available. Determining the load rating factors for these types of structures is particularly difficult. The resulting ratings are usually based on numerous, conservative, assumptions. In many cases these structures end up with ratings much lower than they would have if plans were available for the bridge. There is a need for methods to help in determining realistic load ratings factors for bridges for which plans are not available. This report summarizes the results of a study into methods for load rating bridges for which structural plans are not available, based on the results of diagnostic load tests.
Language
- English
Project
- Status: Completed
-
Sponsor Organizations:
Delaware Department of Transportation
P.O. Box 778
Dover, DE United States 19901 -
Performing Organizations:
Delaware Center for Transportation
University of Delaware
Newark, DE United States 19716 -
Principal Investigators:
Shenton, Harry
Chajes, Michael
- Start Date: 20030701
- Expected Completion Date: 0
- Actual Completion Date: 20040930
- Source Data: RiP Project 18809
Subject/Index Terms
- TRT Terms: Bearing capacity; Bridges; Load factor; Research projects; Structural deterioration and defects
- Uncontrolled Terms: Analytical models; Bridge management
- Subject Areas: Bridges and other structures; Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 01459821
- Record Type: Research project
- Source Agency: Delaware Department of Transportation
- Files: RIP, STATEDOT
- Created Date: Jan 3 2013 1:13PM