Effects of Temperature on Bridge Dynamic Properties: Final Report

Details

• Creators:
  Zolghadri, Navid ; Halling, Marvin W. ; Barr, Paul J. ; Foust, Nick
• Corporate Creators:
  Utah State University
• Corporate Contributors:
  Rutgers University. Center for Advanced Infrastructure and Transportation ; United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Climate change
  • Coastal engineering
  • Corrosion
  • Disasters
  • Fatigue (Mechanics)
  • Fiber reinforced polymers
  • High performance concrete
  • Infrastructure
  • Runoff
  • Sea level
  More +
• Publication/ Report Number:
  CAIT-UTC-050
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report 06/01/12 to 012/30/15
• Corporate Publisher:
  Rutgers University. Center for Advanced Infrastructure and Transportation
• Abstract:
  Structural health monitoring (SHM) using ambient vibration has become a valuable tool in evaluating and assessing the condition of civil structures. For bridge structures, a vibration based SHM system uses the dynamic response of a bridge to measure modal parameters. A change in a structure's modal parameters can indicate a physical change in the system, such as damage or a boundary condition change. These same modal parameters are sensitive to environmental factors, mainly temperature. Statistical models have been utilized to filter out modal parameter changes influenced by temperature and those caused by physical changes. Statistical models also help describe the relationship between modal parameters and environmental conditions. For this research, a lab specimen, I-girder, concrete box-girder, and steel plate girder bridges were studied. A SHM system was installed on these structures and vibration and temperature data were collected. This data was used to understand how the bridge's natural frequencies typically change due to temperature.
• Format:
  PDF
• Funding:
  DTRT13-G-UTC33
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31280/dot_31280_DS1.pdf
• File Type:
  [PDF - 6.23 MB]
• Collection(s):
  Transportation Resilience and Vulnerability Collection ; University Transportation Centers
• Main Document Checksum:
  urn:sha256:2fa77e6bd38968d0bb6a2b764feca6b85598d43f883ec559e6ec78f104e14bda