Redundancy and Robustness of Highway Bridge Superstructures and Substructures

Major advances have recently been achieved in developing methodologies for the structural analysis of cascading failures and in understanding the behavior of different types of systems under suddenly applied extreme loads. Yet, a main issue related to defining objective measures of redundancy and quantifying the levels of redundancy that exist in structural systems remains vastly unresolved. This paper reviews work done by the authors and their colleagues on quantification of system redundancy of typical highway bridges and reassesses previously made proposals for including system redundancy and robustness during the structural design and safety evaluation of bridge superstructure and substructure systems. These proposals, which are based on system reliability principles, consider structural system safety, system redundancy, and system robustness in comparison to member safety, and account for the uncertainties associated with determining member and system strengths as well as future loads in a consistent and rational manner.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/15732479
• Supplemental Notes:
  • Abstract reprinted with permission from Taylor and Francis
• Authors:
  • Ghosn, Michel
  • Moses, F
  • Frangopol, Dan M
• Publication Date: 2010-2

Language

• English

Media Info

• Media Type: Print
• Features: References;
• Pagination: pp 257-278
• Serial:
  • Structure and Infrastructure Engineering
  • Volume: 6
  • Issue Number: 1&2
  • Publisher: Taylor & Francis
  • ISSN: 1573-2479
  • EISSN: 1744-8980
  • Serial URL: http://www.tandfonline.com/loi/nsie20

Subject/Index Terms

• TRT Terms: Bridge substructures; Bridge superstructures; Failure; Highway bridges; Redundancy; Structural analysis
• Subject Areas: Bridges and other structures; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01158817
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 14 2010 7:20AM