Research Article
Feb 1971
Flexural Rigidity of Concrete Column Sections
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VIEW THE REPLYAuthors: Ian C. Medland and Donald A. TaylorAuthor Affiliations
Publication: Journal of the Structural Division
Volume 97, Issue 2
Abstract
The examination of theoretical stiffness ratios for reinforced concrete sections under uniaxial bending and axial load has shown that a reasonably simple set of approximate equations can be derived to enable a safe estimate of such stiffnesses to be computed. Due to the quantity of computing involved, the theoretical computations were limited to combinations of concrete strength and steel proportion within the practical ranges of 3,000 psi to 5,000 psi and 0.01 to 0.03 respectively, and to three proportions of cross-section geometry. It is customary to use either the uncracked or fully cracked stiffness in analysis. The method presented has the advantage of a more accurate estimate of stiffness in the middle range, though strain history effects should be incorporated, as wiht other methods.
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Published In
Journal of the Structural Division
Volume 97 • Issue 2 • February 1971
Pages: 573 - 586
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Feb 1971
Published online: Feb 1, 2021
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Authors
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Ian C. Medland
Sr. Lecturer, Theoretical and Applied Mechanics, Univ. of Auckland, New Zealand
Donald A. Taylor
Grad. Student, Cambridge Univ., Cambridge, England
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