Research Article
May 1979
Optimal Design of Culverts under Uncertainties
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VIEW THE REPLYPublication: Journal of the Hydraulics Division
Volume 105, Issue 5
Abstract
In the design of highway drainage culverts there are many uncertainties involved in addition to the normally considered hydrologic uncertainty due to the randomness in flood and rainfall frequencies. Uncertainties can be contributed from many sources and are classified as hydrologic, hydraulic, structural, and economic with subtypes of uncertainties in each of these categories. This paper describes a procedure for systematically analyzing and incorporating the uncertainties into the optimal design of drainage culverts. The procedure is based upon the concepts of hydrologic risk, first-order analysis of uncertainties, evaluation of expected damages, and optimization. The optimization model is used to select the magnitudes of the design variables in order to minimize total expected project costs. Using such a design procedure, the proper trade-off analysis among the potential flood damages, the design uncertainties, and the cost of the project is performed in determining the design.
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Published In
Journal of the Hydraulics Division
Volume 105 • Issue 5 • May 1979
Pages: 443 - 460
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: May 1979
Published online: Feb 3, 2021
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Authors
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Larry W. Mays, AM.ASCE
Asst. Prof. of Civ. Engrg., The Univ. of Texas, Austin, Tex., USA
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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.