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: Active
  • Funding: $195888
  • Contract Numbers:

    69A3551847102

    CAIT-UTC-REG22

  • 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

    Parsons Transportation Group

    100 Broadway Avenue
    New York, NY  United States  10002
  • Project Managers:

    Szary, Patrick

    Khazem, D

  • 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: 20200831
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

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 3:11PM