Simulation of Degradation and Failure of Suspension Bridge Main Cables due to Natural and Anthropogenic Hazards
The primary goal of this proposal is to develop a well-defined methodology to estimate the remaining strength of a suspension bridge cable that has been exposed to fire. The methodology will rely on a general purpose Finite Element (FE) code (ABAQUS) that is commercially available and widely used in the profession. The cable FEM model will be developed and calibrated using the extensive experimental data already available to the research team: this data will provide the much-needed thermo-mechanical properties for the ASTM 586 steel used in main cables. This will allow the research team to study the evolution of the reduction of the cable strength over time of exposure, accounting also for the cooling phase when the fire is extinguished. This FEM model is expected to (1) provide high-confidence designs of new structures, (2) retrofit existing structures with novel hardening systems, (3) quantify more accurately the hazards associated with traffic patterns and general access to cables, and (4) perform high-fidelity forensic investigations of structures subjected to fire events.
Language
- English
Project
- Status: Completed
- Funding: $195888
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Contract Numbers:
69A3551847102
CAIT-UTC-REG22
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Sponsor Organizations:
Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC United States 20590 -
Managing Organizations:
Center for Advanced Infrastructure and Transportation
Rutgers University
100 Brett Road
Piscataway, NJ United States 08854-8058 100 Broadway Avenue
New York, NY United States 10002 -
Project Managers:
Szary, Patrick
Khazem, D
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Performing Organizations:
Columbia University
610 SW Mudd
500W 120th Street
New York, New York United States 10027 -
Principal Investigators:
Brugger, Adrian
Betti, Raimondo
Ghazemi, Hamid
- Start Date: 20190901
- Expected Completion Date: 20220831
- Actual Completion Date: 0
- USDOT Program: University Transportation Centers Program
Subject/Index Terms
- TRT Terms: Cables; Calibration; Failure; Fatigue strength; Finite element method; Fire; Methodology; Simulation; Suspension bridges
- Identifier Terms: ABAQUS (Computer program)
- Subject Areas: Bridges and other structures; Design; Highways; Maintenance and Preservation; Materials; Security and Emergencies;
Filing Info
- Accession Number: 01722459
- Record Type: Research project
- Source Agency: Center for Advanced Infrastructure and Transportation
- Contract Numbers: 69A3551847102, CAIT-UTC-REG22
- Files: UTC, RIP
- Created Date: Nov 14 2019 8:20PM