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Optimal target performance for cost-effective seismic design of bridges

Conference Paper


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Abstract


  • A systematic approach is proposed for evaluating the cost-effectiveness of existing bridge design codes from the perspective of lifecycle cost consideration. In the life cycle cost formulation, costs of construction, damage cost, road user cost, as well as discount cost over the design life of the bridge are considered. The optimal performance is selected on the basis of minimum life cycle cost. The performance of a typical two-span bridge designed according to a current code provision for different earthquake ground motion levels is predicted and optimal target performance is selected based on life cycle cost with different assumptions of user cost. It is demonstrated that life cycle cost should be considered in the design phase of a new structure or of a structure to be retrofitted, and the target performance significantly depends on the expected average daily traffic using the road.

UOW Authors


  •   Sheikh, M Neaz.
  •   Legeron, Frederic (external author)
  •   GUIZIOU, Claire (external author)

Publication Date


  • 2007

Citation


  • Sheikh, M. Neaz., Légeron, F. & Guiziou, C. (2007). Optimal target performance for cost-effective seismic design of bridges. Ninth Canadian Conference on Earthquake Engineering (pp. 1641-1650). Canada: The Canadian Association for Earthquake Engineering.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1422&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/413

Start Page


  • 1641

End Page


  • 1650

Place Of Publication


  • Canada

Abstract


  • A systematic approach is proposed for evaluating the cost-effectiveness of existing bridge design codes from the perspective of lifecycle cost consideration. In the life cycle cost formulation, costs of construction, damage cost, road user cost, as well as discount cost over the design life of the bridge are considered. The optimal performance is selected on the basis of minimum life cycle cost. The performance of a typical two-span bridge designed according to a current code provision for different earthquake ground motion levels is predicted and optimal target performance is selected based on life cycle cost with different assumptions of user cost. It is demonstrated that life cycle cost should be considered in the design phase of a new structure or of a structure to be retrofitted, and the target performance significantly depends on the expected average daily traffic using the road.

UOW Authors


  •   Sheikh, M Neaz.
  •   Legeron, Frederic (external author)
  •   GUIZIOU, Claire (external author)

Publication Date


  • 2007

Citation


  • Sheikh, M. Neaz., Légeron, F. & Guiziou, C. (2007). Optimal target performance for cost-effective seismic design of bridges. Ninth Canadian Conference on Earthquake Engineering (pp. 1641-1650). Canada: The Canadian Association for Earthquake Engineering.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1422&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/413

Start Page


  • 1641

End Page


  • 1650

Place Of Publication


  • Canada