Corrosion Estimation of a Historic Truss Bridge Using Model Updating

Bridge structures are valuable national assets for transportation and economy that should be maintained properly for continuous stable operation. Corrosion is common in steel bridges; severe corrosion may result in significant economic impact and long downtime for retrofit. To date, various corrosion evaluation technologies have been developed such as nondestructive evaluation techniques and analytical model updating strategies. Among them, nondestructive evaluation is costly and time consuming for scanning entire bridges. For model updating, few examples on full-scale bridges with severe corrosion have been reported. In this paper, the corrosion level in a historic steel-truss bridge is estimated using model updating. Dynamic characteristics of the bridge are identified via a series of short-term full-scale experiments. An initial finite-element model of this bridge is then updated to match the field corrosion estimation results. The corrosion levels predicted by the proposed approach were consistent with the results of a visual inspection of this bridge. The results of the model updating routine could be used to monitor the overall corrosion levels in the structure with periodic inspection over time.

• Record URL:
  https://doi.org/10.1061/(ASCE)BE.1943-5592.0000403
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
• Supplemental Notes:
  • Copyright © 2013 American Society of Civil Engineers.
• Authors:
  • Jang, Shinae
  • Li, Jian
  • Spencer, Billie F
• Publication Date: 2013-7

Language

• English

Media Info

• Media Type: Print
• Features: References;
• Pagination: pp 678-689
• Serial:
  • Journal of Bridge Engineering
  • Volume: 18
  • Issue Number: 7
  • Publisher: American Society of Civil Engineers
  • ISSN: 1084-0702
  • Serial URL: http://ojps.aip.org/beo

Subject/Index Terms

• TRT Terms: Corrosion; Estimating; Finite element method; Historic bridges; Inspection; Mathematical models; Nondestructive tests; Retrofitting; Steel; Structural health monitoring; Truss bridges
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 01487927
• Record Type: Publication
• Files: TRIS, ASCE
• Created Date: Jun 7 2013 11:39AM