Research Article
Nov 1969
Inelastic Analysis of Multistory Multibay Frames
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VIEW THE REPLYPublication: Journal of the Structural Division
Volume 95, Issue 11
Abstract
An incremental load procedure is presented for determining the elasto-plastic behavior of plane rectangular rigid frames from the unloaded state to the ultimate carrying capacity. The procedure utilizes the displacement method of analysis and includes the effects of joint displacement, strain reversal, axial force, and spread of the inelastic zones in the members. The numerical procedure was programmed to study bending and bifurcation failures of fixed base portal and multibay, multistory frames under proportional and nonproportional loading. On the basis of the frames studied the inclusion of joint displacements in the analysis had a significant effect on the computed value of the ultimate carrying capacity of the structure. The studies indicated that the value for the determinant of the stiffness matrix approaches zero at the ultimate carrying capacity regardless of whether the frame fails by bifurcation or by bending, elastically or inelastically.
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Published In
Journal of the Structural Division
Volume 95 • Issue 11 • November 1969
Pages: 2477 - 2506
Copyright
© 1969 American Society of Civil Engineers.
History
Published in print: Nov 1969
Published online: Feb 1, 2021
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Authors
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Ronald J. Alvarez, M.ASCE
Assoc. Prof. of Engrg. Science, Hofstra Univ., Hempstead, N.Y.
Charles Birnstiel, M.ASCE
Prof. of Civ. Engrg., New York Univ., New York, N.Y.
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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.