Structural Health Monitoring of Representative Cracks in the Manhattan Bridge

The Manhattan Bridge is 6855 feet long, crosses the East River and connects the island of Manhattan to Brooklyn. It is subjected to repeated dynamic loads, especially by the transit system trains with the average daily traffic of 1000 trains per day. As a result of repeated loads, especially those by the trains that run on full capacity, multitudes of cracks have been developed in the floor beams at the piers, as well as at bottom cords of trusses and stringers. The owners of the Bridge have raised a number of concerns about the size and number of cracks. In addition, the dynamic amplification associated with the bolted rail joints has raised a serious concern among the New York City Department of Transportation (NYCDOT) engineers. The main objectives of the proposed structural health monitoring (SHM) system is to (1) quantify the level of dynamic amplification due to the bolted rail splices, (2) detect and monitor the growth of the cracks in the main supporting elements of the critical span(s) within the Manhattan approach, and (3) quantify the effectiveness of fatigue mitigation strategies implemented by NYCDOT. The monitoring system will be designed to establish a correlation between the load imposed strains, i.e. a number of trains simultaneously crossing over the bridge, and their impact on crack growth and displacements.

Language

  • English

Project

  • Status: Active
  • Funding: $292024
  • Contract Numbers:

    DTRT13-G-UTC28

    CAIT-UTC-NC61

  • 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

    New York City Department of Transportation

    40 Worth Street
    New York, NY  United States  10013
  • Project Managers:

    Szary, Patrick

    McAnulty, Kevin

  • Performing Organizations:

    Center for Advanced Infrastructure and Transportation

    Rutgers University
    100 Brett Road
    Piscataway, NJ  United States  08854-8058

    University of Illinois at Chicago (UIC)

    842 W Taylor St
    Chicago, IL  United States  60607
  • Principal Investigators:

    Babanajad, Saeed

    Moon, Franklin

    Maher, Ali

    Ansari, Farhad

  • Start Date: 20180917
  • Expected Completion Date: 20190630
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers

Subject/Index Terms

Filing Info

  • Accession Number: 01682048
  • Record Type: Research project
  • Source Agency: Center for Advanced Infrastructure and Transportation
  • Contract Numbers: DTRT13-G-UTC28, CAIT-UTC-NC61
  • Files: UTC, RiP
  • Created Date: Aug 17 2018 9:42AM