Prediction of the Lateral Load-Displacement Curves for Reinforced Concrete Squat Walls Failing in Shear
Publication: Journal of Structural Engineering
Volume 143, Issue 10
Abstract
The reinforced concrete squat wall, which demonstrates high stiffness and load capacity, is one of the most effective earthquake-resisting members. It has been widely used in seismic design and retrofitting and thus is crucial to an understanding of the lateral load-displacement behavior within. Based on the strut-and-tie concept, a trilinear model is proposed to predict the lateral load-displacement curves for reinforced concrete squat walls failing in shear. This paper proposes a curve with three turning points: the cracking point associated with the apparent decrease in stiffness as the crack occurs; the strength point as the squat wall fails in shear; and the collapse point as the squat wall finally loses its axial load-carrying capacity. With a simplified calculation process, the proposed model is proven suitable for application in engineering practice and achieves successful predictions of lateral load-displacement curves for squat walls. A further comparison between the proposed model and other available models is carried out so as to further explain the differences among those models and describe their physical configurations.
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Acknowledgments
The authors express their gratitude to the Ministry of Science and Technology (MOST 105-2221-E-002-024) of Taiwan and the National Center for Research on Earthquake Engineering (06102A1300) for the support funds provided throughout this study.
References
ACI (American Concrete Institute). (2014). “Building code requirements for structural concrete (ACI 318-14) and commentary (ACI 318R-14).” ACI Committee 318, Farmington Hills, MI.
ASCE. (2014). “Seismic evaluation and retrofit of existing buildings (41-13).” ASCE/SEI 41-13, Reston, VA.
Bali, I., and Hwang, S. J. (2007). “Strength and deflection prediction of double curvature reinforced concrete squat walls.” Struct. Eng. Mech., 27(4), 501–521.
Benjamin, J. R., and Williams, H. A. (1957). “Behavior of one-story reinforced concrete shear walls.” Proc. J. Struct. Div., 83(3), 1–49.
Chiba, O., Fukuzawa, R., Hatori, T., and Yagishita, K. (1985). “Experimental study on heavily reinforced concrete shear walls.” Proc., 8th SMiRT Conf., Brussels, Belgium.
Elwood, K. J., and Moehle, J. P. (2005). “Axial capacity model for shear-damaged columns.” ACI Struct. J., 102(4), 578–587.
Fukuzawa, R., Chiba, O., Hatori, T., Yagishita, K., and Watabe, M. (1988). “Study on load-deflection characteristics of heavily reinforced concrete shear walls.” Proc., 9th World Conf. on Earthquake Engineering, International Association for Earthquake Engineering, Tokyo.
Gulec, C. K., Whittaker, A. S., and Stojadinovic, B. (2008). “Shear strength of squat rectangular reinforced concrete walls.” ACI Struct. J., 105(4), 488–497.
Gupta, A., and Rangan, B. V. (1998). “High-strength concrete structural walls.” ACI Struct. J., 95(2), 194–205.
Hidalgo, P. A., Ledezma, C. A., and Jordan, R. M. (2002). “Seismic behavior of squat reinforced concrete shear walls.” Earthquake Spectra, 18(2), 287–308.
Hirosawa, M. (1975). Past experimental results on reinforced concrete shear walls and analysis on them, Ministry of Construction, Tokyo, 277 (in Japanese).
Hsu, T. T. C., and Mo, Y. L. (1985). “Softening of concrete in low-rise shearwalls.” ACI Struct. J., 82(6), 883–889.
Hwang, S. J., Fang, W. H., Lee, H. J., and Yu, H. W. (2001). “Analytical model for predicting shear strength of squat walls.” J. Struct. Eng., 43–50.
Hwang, S. J., and Lee, H. J. (2002). “Strength prediction for discontinuity regions by softened strut-and-tie model.” J. Struct. Eng., 1519–1526.
Hwang, S. J., Tsai, R. J., Lam, W. K., and Moehle, J. P. (2017). “Simplification of softened strut-and-tie model for strength prediction of discontinuity regions.” ACI Struct. J., in press.
Kassem, W., and Elsheikh, A. (2010). “Estimation of shear strength of structural shear walls.” J. Struct. Eng., 1215–1224.
Lefas, I. D., Kotsovos, M. D., and Ambraseys, N. N. (1990). “Behavior of reinforced concrete structural walls: Strength, deformation characteristic, failure mechanism.” ACI Struct. J., 87(1), 23–31.
Lehman, D. E., and Moehle, J. P. (2000). “Seismic performance of well-confined concrete bridge columns.”, Pacific Earthquake Engineering Research Center, Berkeley, CA.
Li, Y. A., Huang, Y. T., and Hwang, S. J. (2014). “Seismic response of reinforced concrete short columns failed in shear.” ACI Struct. J., 111(4), 945–954.
Li, Y. A., and Hwang, S. J. (2017). “Prediction of lateral load displacement curves for reinforced concrete short columns failed in shear.” J. Struct. Eng., 04016164.
Lopes, M. M. P. S. (1991). “Seismic behavior of reinforced concrete walls with low shear ratio.” Ph.D. thesis, Dept. of Civil Engineering, Univ. of London, London.
Massone, L. M., and Ulloa, M. A. (2014). “Shear response estimate for squat reinforced concrete walls via a single panel model.” Earthquakes Struct., 7(5), 647–665.
Paulay, T., and Priestley, M. J. N. (1992). Seismic design of reinforced concrete and masonry buildings, Wiley, New York, 744.
Sezen, H., and Moehle, J. P. (2006). “Seismic tests of concrete columns with light transverse reinforcement.” ACI Struct. J., 103(6), 842–849.
Shiga, T., Shibata, A., and Takahashi, T. (1974). “Experimental study on dynamic properties of reinforced concrete shear walls.” Proc., 5th World Conf. on Earthquake Engineering, International Association for Earthquake Engineering, Tokyo.
Tsai, R. J. (2015). “Prediction of lateral load displacement curves of reinforced concrete wall with openings.” M.S. thesis, Dept. of Civil Engineering, National Taiwan Univ., Taipei, Taiwan (in Chinese).
Wallace, J. W., Elwood, K. J., and Massone, L. M. (2008). “Investigation of the axial load capacity for lightly reinforced wall piers.” J. Struct. Eng., 1548–1557.
Wood, S. L. (1990). “Shear strength of low-rise reinforced concrete walls.” ACI Struct. J., 87(1), 99–107.
Yu, H. W., and Hwang, S. J. (2005). “Evaluation of softened truss model for strength prediction of reinforced concrete squat walls.” J. Eng. Mech., 839–846.
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©2017 American Society of Civil Engineers.
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Received: Nov 9, 2016
Accepted: Apr 18, 2017
Published online: Aug 1, 2017
Published in print: Oct 1, 2017
Discussion open until: Jan 1, 2018
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