Research Article
Sep 1979
Post-Yield Flexural Properties of Tubular Members
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 105, Issue 9
Abstract
In order to carry out inelastic dynamic analyses of steel offshore platforms under earthquake excitations, flexural members are generally modeled by assuming the formation of plastic hinges at the ends when the corresponding moments exceed a limiting value. In this work, static solutions are obtained for the yield and post-yield properties of tubular members in flexure by making use of experimental moment-curvature relationships that are available in nondimensional form for several levels of axial load acting on the section. The objective is to determine improved properties for the point hinges by considering the spread of yielding. These properties are the equivalent yield moment at zero axial load, the post-yield stiffness expressed as a fraction of the corresponding elastic stiffness, and an interaction diagram giving the yield moment as a function of the axial load. The sensitivity of response to variations in these properties is also examined by analyzing an example platform.
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Published In
Journal of the Structural Division
Volume 105 • Issue 9 • September 1979
Pages: 1757 - 1768
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: Sep 1979
Published online: Feb 1, 2021
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Authors
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Stavros A. Anagnostopoulos, M.ASCE
Research Engr., Shell Development Co., Houston, Tex
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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.