Toward Compression‐Field Analysis of Reinforced Concrete Solids
Publication: Journal of Structural Engineering
Volume 117, Issue 6
Abstract
Finite‐element formulations are presented for the analysis of reinforced concrete solids. Cracked reinforced concrete is treated as an orthotropic nonlinear elastic material based on a smeared, rotating crack model. Secant‐stiffness moduli are defined for concrete and reinforcement, and these are used in the development of an eight‐noded regular hexahedral element. Procedures are discussed by which the formulations can be implemented into existing linear elastic algorithms to provide nonlinear analysis capabilities. The constitutive relations implemented in the formulations are relations extrapolated from the two‐dimensional models of the modified compression field theory (MCFT). The accuracy of the constitutive models and finite‐element formulations are examined by analyzing a series of overreinforced beams subjected to bending and torsion. Excellent agreement is found between predicted and observed response. The performance characteristics and potential applications of the analysis procedure are discussed, and areas in need of further research are identified.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 117 • Issue 6 • June 1991
Pages: 1740 - 1758
Copyright
Copyright © 1991 ASCE.
History
Published online: Jun 1, 1991
Published in print: Jun 1991
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