LRFR Methodology for Missouri Bridges
Load and Resistance Factor Rating, also referred to as LRFR, is an American Association of State Highway and Transportation Officials (AASHTO)-adopted guide manual for the condition evaluation of bridge structures. Missouri Department of Transportation (MoDOT) has recently updated their load rating policy to better reflect the wide range of heavier vehicles legally travelling along Missouri roads. These updated rating practices are predominately based on the Load Factor Rating (LFR) methodology, with the allowance for the allowable stress rating methodology in special situations (example is timber bridges). The updated rating practices also includes the LRFR methodology for general load ratings, but not for load posting determinations. MoDOT would like to implement load posting policy with the LRFR methodology that is consistent with their current policy using LFR and provides similar results in terms of the number of bridges requiring load postings. The Research Team will provide MoDOT with recommendations of LRFR adoption.
Language
- English
Project
- Status: Active
- Funding: $184,999
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Contract Numbers:
TR202122
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Sponsor Organizations:
Missouri Department of Transportation
1617 Missouri Boulevard
P.O. Box 270
Jefferson City, MO United States 65102 -
Project Managers:
Hosey, Jenni
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Performing Organizations:
Missouri Center for Transportation Innovation
Lafferre Hall
416 S 6th St.
Columbia, Missouri United States 65201 -
Principal Investigators:
Thiagarajan, Ganesh
Myers, John
- Start Date: 20210601
- Expected Completion Date: 20240731
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Bridges; Heavy vehicles; Load and resistance factor design; Load factor
- Geographic Terms: Missouri
- Subject Areas: Bridges and other structures; Highways; Policy;
Filing Info
- Accession Number: 01784660
- Record Type: Research project
- Source Agency: Missouri Department of Transportation
- Contract Numbers: TR202122
- Files: RIP, STATEDOT
- Created Date: Oct 13 2021 11:44AM