Instrumentation and monitoring of I35W St. Anthony Falls Bridge

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The St. Anthony Falls Bridge was constructed to replace the steel truss bridge that collapsed on August 1, 2007. The replacement bridge featured a "smart bridge" system. This system included instrumentation for monitoring the structural behavior of the bridge. The University of Minnesota is responsible for the collection and interpretation of the data gathered by the system. To aid in the analysis of the bridge, finite element models were created. Prior to opening the bridge to traffic, truck load tests were conducted to provide data for calibrating the model. The models will be used to gain a better understanding of the behavior of concrete box girder bridges in Minnesota, and for establishing a long-term monitoring plan for the instrumented bridge. This paper describes the instrumentation in the St. Anthony Falls Bridge, the construction and calibration of the finite element models, the behavior of the bridge with respect to the truck load tests and thermal effects, and the plan for long-term monitoring.

Original languageEnglish (US)
Title of host publication3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference
Subtitle of host publicationThink Globally, Build Locally, Proceedings
PublisherPrecast Prestressed Concrete Institute
ISBN (Electronic)9780937040904
StatePublished - Jan 1 2010
Event3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference 2010 - Washington, United States
Duration: May 29 2010Jun 2 2010

Publication series

Name3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference: Think Globally, Build Locally, Proceedings

Other

Other3rd International fib Congress and Exhibition, Incorporating the PCI Annual Convention and Bridge Conference 2010
CountryUnited States
CityWashington
Period5/29/106/2/10

Keywords

  • Assessment and maintenance
  • Field investigation
  • I35W St. Anthony Falls Bridge
  • Monitoring

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