Research Article
Jul 1981
Minimum Weight Plastic Design of Continuous Beams
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VIEW THE REPLYAuthors: Yuhshi Fukumoto, M.ASCE, and Mitsuru ItoAuthor Affiliations
Publication: Journal of the Structural Division
Volume 107, Issue 7
Abstract
A plastic design method is presented on minimizing the structural weight of n-span continuous beams with variable cross sections. The loads applied to the beam are combined loads consisting of a concentrated live load and a uniformly distributed live and dead load. The method which obtains optimum cross sectional shapes is explored. The plastic design method of n-span continuous beams consisting of any span length is presented, and the obtained required plastic moment distributions under combined loading are shown. Optimum I-shape sections, which lead to minimizing the beam weight, are given. The modified stepped beams corresponding to the required plastic moment distributions are determined by the dynamic programming approach. Practical design charts are supplied.
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Published In
Journal of the Structural Division
Volume 107 • Issue 7 • July 1981
Pages: 1263 - 1277
Copyright
© 1981 American Society of Civil Engineers.
History
Published in print: Jul 1981
Published online: Feb 1, 2021
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Yuhshi Fukumoto, M.ASCE
Prof., Dept. of Civ. Engrg., Nagoya Univ., Nagoya, Japan
Mitsuru Ito
Prof., Dept. of Civ. Engrg., Ritsumeikan Univ., Kyoto, Japan
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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.
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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.