Modeling of Cyclic Shear-Flexure Interaction in Reinforced Concrete Structural Walls. II: Experimental Validation
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Volume 141, Issue 5
Abstract
This paper presents the experimental calibration and validation of the analytical wall model that incorporates interaction between shear and flexural responses under cyclic loading conditions described in the companion paper. The model is calibrated and validated against detailed experimental data obtained from tests on five moderately slender reinforced concrete wall specimens that experienced significant levels of shear-flexure interaction. Test measurements were processed to allow for detailed comparisons between the predicted and measured wall responses at various locations and response levels. Response comparisons reveal that the proposed analytical model captures the experimentally measured nonlinear shear deformations and their coupling with flexural deformations throughout the cyclic loading history. In addition, the analytical results successfully represent various experimentally measured responses, such as lateral-load versus wall-top-displacement relations, magnitudes and distributions of deformations associated with shear and flexure, and local responses including flexural rotations, vertical strains, and concrete crack orientations. Based on the comparisons presented, model capabilities are assessed and future model improvements are suggested.
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Acknowledgments
The work presented in this paper was supported by funds from the National Science Foundation under Grants CMMI-0825347 and CMMI-1208192. The test results used in this study were obtained from experimental studies performed in a laboratory renovated with funds provided by the National Science Foundation under Grant No. 0963183, which is an award funded under the American Recovery and Reinvestment Act of 2009 (ARRA). The assistance of Dr. A. Salamanca and Senior Development Engineer S. Keowen are greatly appreciated. Laboratory assistants C. Hilson, B. Gerlick, R. Marapao, K. Weiland, S. Garcia, I. Wallace, L. Herrera, J. Diaz, F. Cifelli, K. Pham, and G. Schwartz also helped with specimen construction, test preparation, and test completion. Any opinions, findings, and conclusions expressed in this paper are those of the authors and do not necessarily reflect those of the supporting organizations or other people acknowledged herein.
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Journal of Structural Engineering
Volume 141 • Issue 5 • May 2015
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© 2014 American Society of Civil Engineers.
History
Received: Aug 31, 2013
Accepted: Mar 20, 2014
Published online: Jul 18, 2014
Discussion open until: Dec 18, 2014
Published in print: May 1, 2015
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