Comparative Study of Model Predictions and Data from Caltrans/CSMIP Bridge Instrumentation Program: A Case study on the Eureka-Samoa Channel Bridge

Long-span bridges provide vital transportation links to metropolitan regions, and their damage during earthquakes will cause significant hardship. Recognizing their importance, the California Department of Transportation (Caltrans) and California Geological Survey have been deploying strong motion instrumentation on these structures for 25 years. In the present study, existing gaps between responses predicted using numerical models and real-life data are investigated through system identification and finite element model updating techniques for the Samoa Channel Bridge, located in Humboldt County. Seismic response of this bridge is different from its operational response, and the discrepancy increases with the shaking intensity. Also, while existing reduced-order numerical models of soil-pile interaction are observed to work well, they should be calibrated for specific vibration amplitudes.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 151p

Subject/Index Terms

Filing Info

  • Accession Number: 01577571
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Report/Paper Numbers: CA14-2418, UCLA SGEL 2014-01
  • Contract Numbers: 65A0450
  • Files: CALTRANS, TRIS, ATRI, STATEDOT
  • Created Date: Sep 23 2015 6:58PM