BRIDGE REPLACED IN SECTIONS - AT NIGHT : THE LIONS GATE BRIDGE TRUSS AND DECK SECTIONS WERE REPLACED DURING 10-HOUR NIGHT CLOSURES

An unprecedented rehabilitation project in Vancouver, British Columbia, Canada saw the replacement of Lions Gate Bridge section by section over 10 hour periods in the night, while the bridge remained in service during the day. The $80 million effort on the 45 year old bridge involved seismic retrofitting, which included three primary elements: 1) build-up of the existing H-bents in order to longitudinally anchor the structure; 2) allow piers to rock transversely; and, 3) add piled foundations in areas where liquefaction potential is high. The project also included widening of sidewalks, as well as replacement of the suspended span deck. This article details the efforts taken in the restoration process. It is believed that the Lions Gate Bridge is the first major suspension bridge that was seismically retrofitted under a design/build format. In addition to being vulnerable to high winds, the bridge is also thought to be the first major suspension bridge that had its deck completely replaced while maintaining traffic.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1519687
• Corporate Authors:

  James Informational Media, Incorporated

  2720 South River Road, Suite 126
  Des Plaines, IL  United States  60018-
• Authors:
  • Abrahams, M
  • Tse, J
  • Bryson, J
• Publication Date: 2003-2

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 58-65
• Serial:
  • Better Roads
  • Volume: 73
  • Issue Number: 2
  • Publisher: James Informational Media, Incorporated
  • ISSN: 0006-0208
  • Serial URL: http://www.betterroads.com

Subject/Index Terms

• TRT Terms: Bridge decks; Bridge engineering; Design build; Earthquake resistant design; Reconstruction; Suspension bridges; Viaducts
• Identifier Terms: Lions Gate Bridge (Vancouver, Canada)
• Uncontrolled Terms: Jacking traveler
• Geographic Terms: Vancouver (Canada)
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00939863
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Files: BTRIS, TRIS
• Created Date: Apr 2 2003 12:00AM