Nonlinear Analysis of Reinforced‐Concrete Shells
Publication: Journal of Structural Engineering
Volume 119, Issue 12
Abstract
Nonlinear finite element procedures are presented for the analysis of reinforced‐concrete shell structures. Cracked concrete is treated as an orthotropic material using a smeared rotating crack approach. The constitutive model adopted for concrete compression response accounts for reductions in strength and stiffness due to the presence of transverse cracks. The model used for concrete in tension represents the tension stiffening effects that significantly influence postcracking response. A heterosis‐type degenerate isoparametric quadrilateral element is developed using a layered‐element formulation, which rigorously considers out‐of‐plane shear response. Selective integration is used to avoid shear‐locking and zero‐energy problems. Good stability and convergence characteristics are provided by the iterative, full‐load secant stiffness solution procedure employed. Simple test elements are used to confirm the analytical procedure's ability to accurately model behavior under conditions of membrane load, flexure, and out‐of‐plane shear. Plate specimens and column‐slab strip specimens are used to investigate the ability to model complex structural behavior influenced by geometric and material nonlinearities.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 119 • Issue 12 • December 1993
Pages: 3439 - 3462
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Oct 23, 1992
Published online: Dec 1, 1993
Published in print: Dec 1993
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