Research Article
Feb 1970
Reliability-Based Structural Design
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 96, Issue 2
Abstract
Safety is described in terms of reliability or probability of survival for multimember multiload condition structures with loads and strengths as random variables. These include weakest link structures which fail if any member fails and fail-safe structures which survive even after the failure or yielding of some members. A proposed design method is to proportion member sizes with a mathematical programming approach to minimize weight subject to an overall probability of failure constraint. Examples presented include trusses designed by weakest link failure analysis and limit designed redundant or fail safe rigid frames. A sequence of numerical integrations evaluates the failure probability for any form of load and strength frequency distribution. Results show the optimum design versus allowable failure probability, coefficients of variation and frequency distribution for load and strength and the effect of failure mode correlation which is due to different members being affected by the same loading.
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Published In
Journal of the Structural Division
Volume 96 • Issue 2 • February 1970
Pages: 221 - 244
Copyright
© 1970 American Society of Civil Engineers.
History
Published in print: Feb 1970
Published online: Feb 1, 2021
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Authors
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Fred Moses, AM.ASCE
Assoc. Prof. or Engrg., Case Western Reserve Univ., Cleveland, Ohio.
John D. Stevenson, AM.ASCE
Manager of Structure Systems Engineer; Westinghouse Nuclear Engrg. Systems Div., Pittsburgh, PA; formerly, Res. Asst., Case Western Reserve Univ., Cleveland, Ohio.
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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.