Steel Bridge Design Handbook: Limit States

In the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications, a limit state is defined as “a condition beyond which the bridge or component ceases to satisfy the provisions for which it was designed.” Bridges designed using the limit-states philosophy of the LRFD Specifications must satisfy “specified limit states to achieve the objectives of constructibility, safety and serviceability.” These objectives are met through the strength, service, fatigue-and-fracture and extreme-event limit states. This module provides bridge engineers with the background regarding the development and use of the various limit states contained in the LRFD Specifications.

  • Record URL:
  • Corporate Authors:

    HDR, Incorporated

    Pittsburgh, PA  United States 

    Federal Highway Administration

    Office of Bridges and Structures
    1200 New Jersey Avenue, SE
    Washington, DC  United States 
  • Authors:
    • Mertz, Dennis
  • Publication Date: 2015-12


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; References;
  • Pagination: 18p

Subject/Index Terms

Filing Info

  • Accession Number: 01608588
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-HIF-16-002 - Vol. 10
  • Contract Numbers: DTFH6114D00049
  • Files: TRIS, ATRI, USDOT
  • Created Date: Jul 19 2016 8:12AM