Modeling the response of fracture critical steel box-girder bridges.

Details

• Alternative Title:
  Project title: Methods of evaluating the redundancy of steel bridges
• Creators:
  Barnard, Timothy ; Hovell, Catherine G. ; Sutton, James P. ; Mouras, Joshua M. ; Neuman, Bryce J. ; Samaras, Vasileios A. ; Kim, Janghwan ; Williamson, Eric B. ; Frank, Karl H.
• Corporate Creators:
  University of Texas at Austin. Center for Transportation Research
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Metal bridges
  • Steel bridges
  • Box girder bridges
  • Fracture mechanics
  • Metals
  • Steel
  • Box girder bridges--Fracture
  • Iron and steel bridges--Fracture
  • Steel, Structural--Fracture
  • Metals--Fracture
• Publication/ Report Number:
  FHWA/TX-10/9-5498-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Technical report; Sept. 2005-Aug. 2009.
• Corporate Publisher:
  University of Texas at Austin. Center for Transportation Research
• Abstract:
  Bridges that are classified as fracture critical by AASHTO require more frequent inspections than other types of ; bridges, resulting in greater costs for their maintenance. Several historical events have shown, however, that ; severe damage can occur to a bridge without necessarily resulting in its collapse. A primary objective of this ; research project was to characterize the redundancy that exists in twin steel box-girder bridges, which are widely ; used in Texas and are classified as fracture critical. The main goal of the research was to develop guidelines for ; modeling a bridge’s behavior in the event that a fracture of a critical tension flange takes place. ; The research carried out under this project included laboratory testing, experimental evaluation of a full-scale ; box-girder bridge, and detailed structural analyses. Data gathered from the experimental testing program were ; used to validate nonlinear finite element models as well as simplified engineering models. Based on the results of ; this research, engineers now have guidelines for modeling the response of twin steel box-girder bridges following ; the fracture of one of its girders.
  More +
• Format:
  PDF
• Funding:
  9-5498
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/22654/dot_22654_DS1.pdf
• File Type:
  [PDF - 3.15 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:a7655c7dabd7bb108745749b9022c6aa61adbbd035012250e95e11a53c10e4033c9cd1d7389a9a3f9748ced1c67304d41794e442cae478ce71c9f66500f0764b