Research Article
Dec 1979
Practical Bridge Code Calibration
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 105, Issue 12
Abstract
The paper describes the calibration of the Ontario Highway Bridge Design Code and gives results. The method of calibration integrates traditional procedures, establishing some factors by judgment where applicable, with second moment level two reliability analysis wherever feasible. The resulting formulation is a process of suboptimization. By adjustment of the free code parameters the safety index is made close to the target safety index. Safety indices were calculated for 20 selected existing bridges redesigned using calibrated load and performance factors. The scatter of safety indices for redesigned bridges is significantly reduced. It was found that further research is required to provide more information on serviceability limit states such as cracking in prestressed concrete bridges and permanent deformations of steel girders.
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Information
Published In
Journal of the Structural Division
Volume 105 • Issue 12 • December 1979
Pages: 2497 - 2510
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: Dec 1979
Published online: Feb 1, 2021
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Authors
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Andrzej S. Nowak, AM.ASCE
Asst. Prof., Dept. of Civ. Engrg., State Univ. of New York, Buffalo, N.Y.; formerly, Research Assoc., Dept. of Civ. Engrg., Univ. of Waterloo, Waterloo, Ontario, Canada
Niels C. Lind, M.ASCE
Prof. of Civ. Engrg., Univ. of Waterloo, Waterloo, Ontario, Canada
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.