In 1993, the American Association of State Highway and Transportation Officials (AASHTO) adopted the Load and Resistance Factor Design (LRFD) specifications for bridge design. This article answers the most commonly asked questions regarding these specifications. The questions focus on the role of probability in the LRFD specifications, the key differences between the LRFD and the conventional Load Factor Design specifications, the live-load models used in the LRFD specifications, live-load distribution in the LRFD specifications, the inherent advantages of the new method, and the challenges facing designers in moving to the LRFD specifications.

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  • Corporate Authors:

    Scranton Gillette Communications

    380 E Northwest Highway, Suite 200
    Des Planes, IL  United States  60016-2282
  • Authors:
    • Morcos, S S
    • Grubb, M A
  • Publication Date: 1996-4


  • English

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Filing Info

  • Accession Number: 00728758
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 27 1996 12:00AM