SEISMIC ANALYSIS AND DESIGN APPROACH FOR THE NEW TACOMA NARROWS SUSPENSION BRIDGE

The new Tacoma Narrows Suspension Bridge will parallel the existing bridge, significantly increasing the capacity of SR 16 linking the Seattle-Tacoma metropolitan area. In consideration of the region's high seismicity, capable of producing earthquakes of Richter magnitude 8 or larger, performance-based design criteria were mandated for the new bridge to provide a structure with superior seismic resistance. For each evaluation earthquake, criteria specified the level of acceptable damage and maximum allowable material strains and residual drifts. Compliance with the design criteria was verified through detailed nonlinear time history analysis, requiring extensive soil-structure interaction modeling. Special attention was given to modeling caissons and towers, as these elements provided up to 90% of the mass of the bridge. Rocking was found to be an effective fusing mechanism to control forces in the caissons and remainder of the structure.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9058096068
• Corporate Authors:

  Swets & Zeitlinger Publishers

  Heereweg 347-B
  2161 CA Lisse,   Netherlands 
• Authors:
  • Jones, M H
  • Treyger, S
  • Pence, P
  • BARAKAT, S
• Conference:
  • Recent Developments in Bridge Engineering. Proceedings of the Second New York City Bridge Conference
  • Location: New York, NY
  • Date: 2003-10-20 to 2003-10-21
• Publication Date: 2003

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 123-140

Subject/Index Terms

• TRT Terms: Bridge design; Bridge engineering; Caissons; Design methods; Earthquake resistant structures; Highway bridges; Seismicity; Soil structure interaction; Structural models; Suspension bridges; Time series analysis
• Identifier Terms: Tacoma Narrows Bridge
• Geographic Terms: Seattle (Washington); Tacoma (Washington)
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00965782
• Record Type: Publication
• ISBN: 9058096068
• Files: TRIS
• Created Date: Nov 10 2003 12:00AM