Impacts of New Provisions on the Seismic Design of Tennessee’s Bridges

The American Association of State Highway and Transportation Officials (AASHTO) has plans to incorporate Interim seismic provisions to the 4th edition of the Load and Resistance Factor Design (LRFD) Bridge Design Specifications in 2008. The overall theme will remain a force-based approach to seismic design, but will require more attention to bridges located in some areas of Tennessee due to the increased ground motion return period. Also in 2008, AASHTO will introduce the new Guide Specification for LRFD Seismic Bridge Design, permitting the designer to approach the problem from a displacement-based theory. This paper presents some of the measures taken by the Tennessee Department of Transportation (TDOT) to incorporate both sets of provisions into their bridge designs. More sophisticated analysis techniques than those commonly used in the past as well as details new to TDOT design are discussed.

• 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:
  • Huff, Timothy
• Conference:
  • Sixth National Seismic Conference on Bridges and Highways
  • Location: Charleston SC, United States
  • Date: 2008-7-28 to 2008-7-30
• Publication Date: 2008

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Maps; References;
• Pagination: 10p
• Monograph Title: Sixth National Seismic Conference on Bridges and Highways: Seismic Technologies for Extreme Loads

Subject/Index Terms

• TRT Terms: Bridge design; Dislocation (Geology); Earthquake resistant design; Load and resistance factor design; Seismicity; Structural analysis
• Identifier Terms: AASHTO Guide Specifications for LRFD Seismic Bridge Design
• Geographic Terms: Tennessee
• Subject Areas: Bridges and other structures; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01356838
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 1 2011 1:58PM