Theoretical Stress–Strain Model for Concrete in Steel-Reinforced Concrete Columns
Publication: Journal of Structural Engineering
Volume 145, Issue 4
Abstract
This paper investigated the confinement mechanism of steel-confined concrete in steel-reinforced concrete (SRC) columns. Six axially loaded SRC-core columns were tested and the corresponding structural performance data were collected and assessed. Considering the confinement mechanism of both steel-confined and hoop-confined concrete, the concrete in the SRC columns was divided into four regions: highly steel-confined concrete (HSCC), partially steel-confined concrete (PSCC), partially confined concrete (PCC), and unconfined concrete (UCC). Based on Mander’s model, a theoretical stress–strain model for each concrete region was proposed and implemented in an analytical model to predict the mechanical behaviors of axially loaded SRC columns from the results of the tests described in this paper and of previous tests; satisfactory agreement was observed.
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Acknowledgments
The authors gratefully acknowledge the financial support of the State Key Laboratory of the Ministry of Science and Technology of China under Grant No. SLDRCE15-B-01. The third author is also grateful for the support from the Chinese National Engineering Research Center for Steel Construction (Hong Kong Branch) at The Hong Kong Polytechnic University.
References
Chen, C. C., and N. J. Lin. 2006. “Analytical model for predicting axial capacity and behavior of concrete encased steel composite stub columns.” J. Constr. Steel Res. 62 (5): 424–433. https://doi.org/10.1016/j.jcsr.2005.04.021.
Chen, C. C., C. C. Tao, S. C. Yang, and W. M. Tsai. 2010. “Experimental stress-strain behavior of the concrete confined by cross-H steel cross-sectional shape.” [In Chinese.] J. Chin. Inst. Civ. Hydraul. Eng. 22 (4): 423–434.
Chen, Y. Y., H. S. Wang, X. Z. Zhao, J. L. Hu, D. S. Wang, W. W. Jiang, and L. J. Bao. 2008. “Experimental study on hysteretic behavior of SRC columns with high ratio of core steel.” [In Chinese.] J. Build. Struct. 29 (3): 31–39.
Chen, S. W., and P. Wu. 2017. “Analytical model for predicting axial compressive behavior of steel reinforced concrete column.” J. Constr. Steel Res. 128: 649–660. https://doi.org/10.1016/j.jcsr.2016.10.001.
Chen, S. W., P. Wu, Q. Liu, Z. X. Hou, and L. B. Qiu. 2015. “Studies on axially compressed SRC column using Q460 high strength steel.” In Proc., 8th Int. Conf. on Behavior of Steel Structure in Seismic Area 2015, 131–132. Shanghai, China.
Chen, C. C., and S. C. Yeh. 1996. “Ultimate strength of concrete encased steel composite columns.” [In Chinese.] In Proc., 3rd National Conf. on Structural Engineering, 2197–2206. Beijing.
Cusson, D., and P. Paultre. 1995. “Stress-strain model for confined high-strength concrete.” J. Struct. Eng. 121 (3): 468–477. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:3(468).
El-Tawil, S., and G. G. Deierlein. 1996. Fiber element analysis of composite beam-column cross-sections. Ithaca, NY: Cornell Univ.
El-Tawil, S., and G. G. Deierlein. 1999. “Strength and ductility of concrete encased composite columns.” J. Struct. Eng. 125 (9): 1009–1019. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:9(1009).
Ellobody, E., and B. Young. 2011. “Numerical simulation of concrete encased steel composite columns.” J. Constr. Steel Res. 67 (2): 211–222. https://doi.org/10.1016/j.jcsr.2010.08.003.
Giuffrè, A., and P. Pinto. 1970. “Il comportamento del cemento armato per sollecitazioni cicliche di forte intensità.” Giornale del Genio Civile 5 (1): 391–408.
Huang, Y. S., Y. L. Long, and J. Cai. 2008. “Ultimate strength of rectangular concrete-filled steel tubular (CFT) stub columns under axial compression.” Steel Compos. Struct. 8 (2): 115–128. https://doi.org/10.12989/scs.2008.8.2.115.
Kent, D. C., and R. Park. 1971. “Flexural members with confined concrete.” J. Struct. Div. 97: 1969–1990.
Lee, T. K., and A. D. E. Pan. 2001. “Analysis of composite beam-columns under lateral cyclic loading.” J. Struct. Eng. 127 (2): 186–193. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:2(186).
Liang, C. Y., C. C. Chen, C. C. Weng, Y. L. Yin, and J. C. Wang. 2014. “Axial compressive behavior of square composite columns confined by multiple spirals.” J. Constr. Steel Res. 103 (103): 230–240. https://doi.org/10.1016/j.jcsr.2014.09.006.
Liu, Y., Z. Q. Guo, P. H. Xu, and L. P. Jia. 2015. “Experimental study on axial compression behavior of core steel reinforced concrete columns.” [In Chinese.] J. Build. Struct. 36 (4): 68–74.
Mander, J. B., M. J. N. Priestley, and R. Park. 1988. “Theoretical stress-strain model for confined concrete.” J. Struct. Eng. 114 (8): 1804–1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804).
Mirza, S. A., and B. W. Skrabek. 1992. “Statistical analysis of slender composite beam-column strength.” J. Struct. Eng. 118 (5): 1312–1332. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:5(1312).
Park, R., M. J. N. Priestley, and W. D. Gill. 1982. “Ductility of square-confined concrete columns.” J. Struct. Div. 108 (4): 929–950.
Ricles, J. M., and S. D. Paboojian. 1994. “Seismic performance of steel-encased composite columns.” J. Struct. Eng. 120 (8): 2474–2494. https://doi.org/10.1061/(ASCE)0733-9445(1994)120:8(2474).
Scott, B. D. 1982. “Stress-strain behavior of concrete by overlapping hoops at low and high strain rates.” Aci J. 79 (1): 13–27.
Sheikh, S., and S. M. Uzumeri. 1982. “Analytical model for concrete confinement in tied columns.” J. Struct. Div. 108 (12): 2703–2722.
Shih, T. H., C. C. Chen, C. C. Weng, Y. L. Yin, and J. C. Wang. 2013. “Axial strength and ductility of square composite columns with two interlocking spirals.” J. Constr. Steel Res. 90 (5): 184–192. https://doi.org/10.1016/j.jcsr.2013.07.021.
Tsai, K. C., Y. Lien, and C. C. Chen. 1996. “Behavior of axially loaded steel reinforced concrete columns.” [In Chinese.] J. Chin. Inst. Civ. Hydraul. Eng. 8 (4): 535–545.
Weng, C. C., H. S. Wang, Y. Li, and C. Y. Liang. 2006. “Analytical and experimental study on seismic design of hoop reinforcement of SRC columns.” [In Chinese.] Struct. Eng. 21 (3): 55–83.
Xiao, C., F. Deng, T. Chen, and Z. Zhao. 2017. “Experimental study on concrete-encased composite columns with separate steel sections.” Steel Compos. Struct. 23 (4): 483–491. https://doi.org/10.12989/scs.2017.23.4.483.
Zhao, X., H. Qin, and Y. Y. Chen. 2014. “Experimental study on constitutive model of steel confined concrete in SRC columns with cruciform steel section.” [In Chinese.] J. Build. Struct. 35 (4): 268–279.
Zhao, X. Z., and F. P. Wen. 2018. “Theoretical study on confinement mechanism and stress-strain model for steel confined concrete in SRC columns.” [In Chinese.] Eng. Mech. 35 (5): 36–46.
Zhu, W. Q., G. Meng, and J. Q. Jia. 2014. “Experimental studies on axial load performance of high-strength concrete short columns.” Struct. Build. 167 (9): 509–519. https://doi.org/10.1680/stbu.13.00027.
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Published In
Journal of Structural Engineering
Volume 145 • Issue 4 • April 2019
Copyright
©2019 American Society of Civil Engineers.
History
Received: Apr 9, 2018
Accepted: Sep 11, 2018
Published online: Jan 28, 2019
Published in print: Apr 1, 2019
Discussion open until: Jun 28, 2019
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