PIER CONTINUITY BLAMED FORE EARTHQUAKE COLLAPSE

It is noted that not the double-decking of the Oakland, California, I-880 Nimitz Freeway itself, but a lack of continuity in piers and in lateral confinement of rebar in those piers caused the collapse of the freeway during the recent earthquake. Details of the I-880 pier design are described as well as how the collapse came to occur. With only dowels connecting the columns to the members framing into them at the top and bottom, the columns ends acted as hinges. In addition, lateral confinement of rebar within piers was found lacking. The use of cable retrofits is discussed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/11660022
• Corporate Authors:

  Scranton Gillette Communications

  380 E Northwest Highway, Suite 200
  Des Planes, IL  United States  60016-2282
• Authors:
  • Kuennen, T
• Publication Date: 1989-12

Media Info

• Pagination: p. 36-39
• Serial:
  • Roads & Bridges
  • Volume: 27
  • Issue Number: 12
  • Publisher: Scranton Gillette Communications
  • ISSN: 8750-9229
  • Serial URL: http://www.roadsbridges.com/rb/

Subject/Index Terms

• TRT Terms: Bridge decks; Bridge design; Bridge piers; Bridges; Cables; Earthquake resistant design; Earthquake resistant structures; Earthquakes; Failure; Reinforcing bars; Retrofitting; Structural design
• Uncontrolled Terms: Double deck bridges; Rebars
• Subject Areas: Bridges and other structures; Highways; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 00491063
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 28 1990 12:00AM