Technical Reports

Campaign Monitoring of Railroad Bridges in High-Speed Rail Shared Corridors using Wireless Smart Sensors

  • 09
  • Jun
  • 2015
AUTHOR: Federal Railroad Administration
OFFICE: RPD
SUBOFFICE: RPD-31
REPORT NUMBER: DOT/FRA/ORD-15/19
SUBJECT: Bridge and Structures Safety
KEYWORDS: Campaign Monitoring of Railroad Bridges in High-Speed Rail Shared Corridors using Wireless Smart Sensors; Railroad bridge safety; bridge performance monitoring; wireless sensors; campaign monitoring
ABSTRACT: This research project used wireless smart sensors to develop a cost-effective and practical portable structural health monitoring system for railroad bridges in North America. The system is designed for periodic deployment rather than as a permanent installation to enable campaign-style bridge response monitoring under in-service conditions. This research project measured bridge responses from a 310 feet long steel truss bridge using wireless sensors and developed a finite element (FE) model to obtain global bridge responses under varied train loads and speeds. Additionally, this project developed a new simple beam model that predicts critical speeds and resonances based on train traffic properties. The results from this pilot project provide a technological foundation to develop campaign monitoring sensor technology as an important tool with which to manage railroad bridge assets.

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