New Seismic Retrofit Technologies for a Historic Bridge in California

The California Department of Transportation has nearly concluded a landmark effort to retrofit all bridges in its inventory determined seismically deficient. Several historic bridges were among the structures identified at risk. Historic structures are defined as those included on the “National Register of Historic Places.” Identification as such imparts a higher standard with respect to the visual impacts of modifications, including a review by the Advisory Council on Historic Preservation and/or the State Historic Preservation Office, of any proposed work. The Laurel Street Bridge, spanning State Route 163 just north of downtown San Diego, is one of these historic structures targeted for seismic retrofitting. In addition to the identified seismic deficiencies, the structure suffers from substantial concrete deterioration and reinforcing steel corrosion. This paper outlines the current retrofit strategies contemplated during the project planning phase, noting some of the requisite challenges still under investigation.

• Corporate Authors:

  Multidisciplinary Center for Earthquake Engineering Research

  State University of New York, 107 Red Jacket Quadrangle, P.O. Box 610025
  Buffalo, NY  United States  14261-0025
• Authors:
  • Chung, Paul
  • Ravanipour, Mohammad
  • Wolfe, Raymond
• Conference:
  • Fifth National Seismic Conference on Bridges & Highways
  • Location: San Francisco CA, United States
  • Date: 2006-9-18 to 2006-9-20
• Publication Date: 2006

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; Photos; References;
• Pagination: 9p
• Monograph Title: Fifth National Seismic Conference on Bridges and Highways: Innovation in Earthquake Engineering for Highway Structures

Subject/Index Terms

• TRT Terms: Concrete; Corrosion; Deterioration; Earthquake resistant design; Historic bridges; Reinforcing steel; Retrofitting; Seismicity; Technology
• Identifier Terms: California Department of Transportation; Laurel Street Bridge
• Geographic Terms: San Diego (California)
• Subject Areas: Bridges and other structures; Construction; Design; Highways; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01080774
• Record Type: Publication
• Report/Paper Numbers: A07
• Files: TRIS
• Created Date: Nov 15 2007 10:33AM