Integration of Structural Health Monitoring into Mulitlayer Statewide Bridge Maintenance and Management Practices

For this project, the researchers developed a new structural health monitoring–facilitated condition-based management (SHM-CBM) maintenance prioritization system. This system represents an important step toward more widely integrating SHM into practice. The kernel of the proposed SHM-CBM system is establishing a ranking index for each bridge in a particular inventory that establishes a maintenance funding priority for each bridge. A higher ranking index value indicates a lower maintenance funding priority. The ranking index is computed using both National Bridge Inventory (NBI) and SHM data, as well as user inputs. A case study of the I-80 Sugar Creek Bridge showed that replacement could be postponed by up to 37 years using SHM-CBM because the condition of the bridge was determined to be better than what was previously assumed. This potential extension of service life in combination with expected maintenance, repair, and monitoring costs were used in a cost-benefit analysis that showed SHM system implementation is financially justifiable. The SHM-CBM approach has the following advantages over current decision-making approaches: Continuous and near-real-time SHM data are used in decision making Wide range of quantitative data can be gathered using SHM (e.g., strain and temperature, chloride infiltration, tilt, and corrosion) Reduced uncertainty regarding structural performance Elimination or reduction of over-maintenance and deterioration or failure due to a lack of information about a bridge’s true condition

Language

  • English

Project

  • Status: Completed
  • Funding: $129197.00
  • Contract Numbers:

    DTRT13-G-UTC37

  • Sponsor Organizations:

    Midwest Transportation Center

    Iowa State University
    2711 S Loop Drive, Suite 4700
    Ames, IA  United States  50010-8664

    Department of Transportation

    Office of the Assistant Secretary for Research and Technology
    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Iowa Department of Transportation

    800 Lincoln Way
    Ames, IA  United States  50010
  • Managing Organizations:

    Midwest Transportation Center

    Iowa State University
    2711 S Loop Drive, Suite 4700
    Ames, IA  United States  50010-8664
  • Performing Organizations:

    Iowa State University

    Bridge Engineering Center
    2711 South Loop Drive, Suite 4700
    Ames, Iowa  United States  50010-8664
  • Principal Investigators:

    Phares, Brent

  • Start Date: 20140901
  • Expected Completion Date: 20180930
  • Actual Completion Date: 0
  • Source Data: RiP Project 39351

Subject/Index Terms

Filing Info

  • Accession Number: 01560382
  • Record Type: Research project
  • Source Agency: Midwest Transportation Center
  • Contract Numbers: DTRT13-G-UTC37
  • Files: UTC, RiP
  • Created Date: Apr 14 2015 1:00AM