Localization Analysis of Reinforced Concrete Members with Softening Behavior
Publication: Journal of Structural Engineering
Volume 128, Issue 9
Abstract
This paper presents a method of analysis for evaluating the softening behavior of reinforced concrete (RC) members. To obtain mesh objective results, a nonlocal fiber element model is introduced. The resisting force of each section, in the nonlocal fiber element model, is calculated using a proposed differential hysteretic model, which is especially developed for modeling softening behavior under cyclic loading. The section hysteretic response is determined using microplane constitutive law for concrete and bilinear elastoplastic law for reinforcements. The calculated hysteretic behavior of sections is employed to scale the parameters of the differential hysteretic model. The proposed method is verified by the available experimental results. Close agreements between the numerical and experimental results are obtained. The method provides insight to the procedure of flexural localization. Also, due to computational efficiency of the method, it is possible to extend its use for analyzing RC frames with softening members.
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Information
Published In
Journal of Structural Engineering
Volume 128 • Issue 9 • September 2002
Pages: 1148 - 1157
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Mar 26, 2001
Accepted: Feb 6, 2002
Published online: Aug 15, 2002
Published in print: Sep 2002
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