Development and Implementation of a Continuous Strain Monitoring System on a Multi-Girder Composite Steel Bridge

This paper describes the implementation and evaluation of a long-term strain monitoring system on a three-span, multisteel girder composite bridge located on the interstate system. The bridge is part of a network of bridges that are currently being monitored in Connecticut. The three steel girders are simply supported, whereas the concrete slab is continuous over the interior supports. The bridge has been analyzed using the standard AASHTO Specifications and the analytical predictions have been compared with the field monitoring results. The study has included determination of the location of the neutral axes and the evaluation of the load distributions to the different girders when large trucks cross the bridge. A finite-element analysis of the bridge has been carried out to further study the distribution of live load stresses in the steel girders and to study how continuity of the slabs at the interior joints would influence the overall behavior. The results of the continuous data collection are being used to evaluate the influence of truck traffic on the bridge and to establish a baseline for long-term monitoring.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/32947845
• Authors:
  • Chakraborty, Santanu
  • DeWolf, John T
• Publication Date: 2006-11

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 753-762
• Serial:
  • Journal of Bridge Engineering
  • Volume: 11
  • Issue Number: 6
  • Publisher: American Society of Civil Engineers
  • ISSN: 1084-0702
  • Serial URL: http://ojps.aip.org/beo

Subject/Index Terms

• TRT Terms: Data collection; Field tests; Finite element method; Girder bridges; Highway bridges; Live loads; Load transfer; Mechanical strain; Metal bridges; Monitoring; Strain measurement; Structural analysis; Truck traffic
• Uncontrolled Terms: Composite bridges
• Geographic Terms: Connecticut
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01038425
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 29 2006 11:06AM