Research Article
Nov 1972
Stiffness of Reinforced Concrete Plates
Publication: Journal of the Structural Division
Volume 98, Issue 11
Abstract
A general formulation for the in-plane and flexural stiffnesses of isotropically and nonisotropically reinforced concrete plates is presented. The stiffness of plates is related quantitatively to the relative orientation of the reinforcement with respect to the applied forces, the combination of the applied forces and the amounts of reinforcement in the two orthogonal directions. By rotating the reinforcement from 0° to 45° with respect to the axes of the applied forces the in-plane or flexural stiffness may be decreased to one-half or less. The investigation did not support conventional theories to calculate flexural stiffness such as those in the 1971 ACI Building Code. In general, the ACI Code Equations considerably overestimate flexural stiffness. Results of this investigation can be used to calculate bending moments, deflections and effectiveness of reinforcing bars in cracked concrete sections.
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Information
Published In
Journal of the Structural Division
Volume 98 • Issue 11 • November 1972
Pages: 2587 - 2603
Copyright
© 1972 American Society of Civil Engineers.
History
Published in print: Nov 1972
Published online: Feb 1, 2021
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Authors
Affiliations
Alex E. Cardenas, AM.ASCE
Research Engr., Struc. Dev. Section, Portland Cement Assoc, Research and Dev. Div., Skokie, Ill.
Rolf J. Lenschow
Prof. of Civ. Engrg., Univ. of Trondheim, Trondheim, Norway
Mete A. Sozen, M.ASCE
Prof. of Civ. Engrg., Univ. of Illinois, Urbana, Ill.
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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.