Axial Compressive Behavior of Square-Section Concrete Columns Transversely Reinforced with FRP Grids
Publication: Journal of Composites for Construction
Volume 24, Issue 4
Abstract
Using grid-type stirrups as transverse reinforcements in reinforced concrete (RC) columns can not only provide higher confinement of the concrete core but also lead to an improved concrete cover and better protection to longitudinal reinforcements when compared with conventional stirrups. Fiber-reinforced polymer (FRP) grids, which combine the advantages of grid-type stirrups and FRP composites, are viable for use as transverse reinforcement in square-section RC columns in corrosive environments. However, there were few researches addressing RC columns reinforced with FRP grids. To investigate the axial compressive behavior of RC columns transversely reinforced with FRP grids, experimental investigations were conducted on 17 short square-section columns in small scale (180 × 180 × 600 mm3). Columns were transversely reinforced by CFRP/BFRP grids, weld reinforcement grids (WRG), and steel hoops. The results indicate that although FRP grids could provide less confining pressure than WRG, their performance is better than that of conventional hoops. Finally, an analytical model for predicting the stress–strain behavior of concrete core reinforced with grid-type stirrups is proposed considering the arching action of the confined concrete core. The proposed model shows a good agreement with the present test results as well as those from the existing literature.
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Acknowledgments
This research was supported by the National Key Research and Development Program of China (No. 2017YFC0703000) and the National Natural Science Foundation of China (Nos. 51522807 and 51661165016).
References
ACI (American Concrete Institute). 1999. Building code requirements for structural concrete and commentary. ACI 318R-95 and ACI 318-95. Farmington Hills, MI: ACI.
Akiyama, M., M. Suzuki, and D. M. Frangopol. 2010. “Stress-averaged strain model for confined high-strength concrete.” ACI Struct. J. 107 (2): 179–188.
Basheer, L., D. J. Cleland, and A. E. Long. 1998. “Protection provided by surface treatments against chloride induced corrosion.” Mater. Struct. 31 (7): 459–464. https://doi.org/10.1007/BF02480469.
Candappa, D. C., J. G. Sanjayan, and S. Setunge. 2001. “Complete triaxial stress-strain curves of high-strength concrete.” J. Mater. Civ. Eng. 13 (3): 209–215. https://doi.org/10.1061/(ASCE)0899-1561(2001)13:3(209).
Code of China. 2010. Code for design of concrete structures. GB 50010-2010. Beijing: China Architecture and Building.
Cusson, D., and P. Paultre. 1995. “Stress-strain model for confined high strength concrete.” J. Struc. Eng. 121 (3): 468–477. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:3(468).
Feng, P., J. Wang, Y. Tian, D. Loughery, and Y. Wang. 2016. “Mechanical behavior and design of FRP structural members at high and low service temperatures.” J. Compos. Constr. 20 (5): 04016021. https://doi.org/10.1061/(ASCE)CC. 1943-5614.0000676.
Feng, P., J. Wang, Y. Wang, D. Loughery, and D. Niu. 2014. “Effects of corrosive environments on properties of pultruded GFRP plates.” Compos. Part B 67: 427–433. https://doi.org/10.1016/j.compositesb.2014.08.021.
Furlong, R. W., G. L. Fenves, and E. P. Kasl. 1991. “Welded structural wire reinforcement for columns.” ACI Struct. J. 88 (5): 585–591.
Grira, M. 1998. “Innovative approaches to column confinement.” Ph.D. thesis, Dept. of Civil Engineering, Univ. of Ottawa.
Hognestad, E. 1951. Study of combined bending and axial load in reinforced concrete members. Urbana, IL: Univ. of Illinois Engineering Experiment Station.
Holland, J. M. 1995. “Two-dimensional welded wire mesh as confining reinforcement in square concrete columns.” M.D. thesis, Dept. of Civil and Environment Engineering, Univ. of Houston.
Hong, L. 1997. “Two-dimensional welded wire fabric as confining reinforcement in square concrete columns.” M.D. thesis, Dept. of Civil and Environment Engineering, Univ. of Houston.
Hoshikuma, J., K. Kawashima, K. Nagaya, and A. W. Taylor. 1997. “Stress–strain model for confined reinforced concrete in bridge piers.” J. Struct. Eng. 123 (5): 624–633. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:5(624).
Lambert-Aikhionbare, N. 1999. “Effect on welded wire fabric as transverse reinforcement for high strength concrete columns.” M.D. thesis, Dept. of Civil and Environment Engineering, Univ. of Houston.
Lambert-Aikhionbare, N., and S. W. Tabsh. 2001. “Confinement of high-strength concrete with welded wire reinforcement.” ACI Struct. J. 98 (5): 677–685.
Légeron, F., and P. Paultre. 2003. “Uniaxial confinement model for normal- and high-strength concrete columns.” J. Struct. Eng. 129 (2): 241–252. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:2(241).
Lignola, G. P., A. Prota, G. Manfredi, and E. Cosenza. 2009. “Non-linear modeling of RC rectangular hollow piers confined with CFRP.” Compos. Struct. 88 (1): 56–64. https://doi.org/10.1016/j.compstruct.2008.10.001.
Mander, J. B., M. J. N. Priestley, and R. Park. 1988a. “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).
Mander, J. B., M. J. N. Priestley, and R. Park. 1988b. “Observed stress–strain behavior of confined concrete.” J. Struct. Eng. 114 (8): 1827–1849. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1827).
Mau, S. T., J. M. Holland, and L. Hong. 1998. “Small-column compression tests on concrete confined by WWF.” J. Struct. Eng. 124 (3): 252–261. https://doi.org/10.1061/(ASCE)0733-9445(1998)124:3(252).
Popovics, S. 1973. “A numerical approach to the complete stress–strain curve of concrete.” Cem. Concr. Res. 3 (5): 583–599. https://doi.org/10.1016/0008-8846(73)90096-3.
Razvi, S. R., and M. Saatcioglu. 1989. “Confinement of reinforced concrete columns with welded wire fabric.” ACI Struct. J. 86 (5): 615–623.
Razvi, S. R., and M. Saatcioglu. 1999. “Confinement model for high-strength concrete.” J. Struct. Eng. 125 (3): 281–289. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:3(281).
Richart, F. E., A. Brandtzaeg, and R. L. Brown. 1928. A study of the failure of concrete under combined compressive stresses. Bulletin No. 185. Urbana, IL: Engineering Experiment Station, Univ. of Illinois.
Saatcioglu, M., and M. Grira. 1999. “Confinement of reinforced concrete columns with welded reinforcement grids.” ACI Struct. J. 96 (1): 29–39.
Saatcioglu, M., and S. R. Razvi. 1992. “Strength and ductility of confined concrete.” J. Struct. Eng. 118 (6): 1590–1607. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:6(1590).
Sheikh, S. A., and S. M. Uzumeri. 1980. “Strength and ductility of tied concrete columns.” J. Struct. Div. 106 (5): 1079–1101.
Sheikh, S. A., and S. M. Uzumeri. 1982. “Analytical model for concrete confinement in tied columns.” J. Struct. Div. 108 (12): 2703–2722.
Tabsh, S. W. 2007. “Stress–strain model for high-strength concrete confined by welded wire fabric.” J. Mater. Civ. Eng. 19 (4): 286–294. https://doi.org/10.1061/(ASCE)0899-1561(2007)19:4(286).
Tavio, K. B., and P. Suprobo. 2011. “Investigation of stress-strain models for confinement of concrete by welded wire fabric.” Proc. Eng. 14: 2031–2038. https://doi.org/10.1016/j.proeng.2011.07.255.
Tavio, K. B., and P. Suprobo. 2012. “Experimental behavior of concrete columns confined by welded wire fabric as transverse reinforcement under axial compression.” ACI Struct. J. 109 (3): 339–347.
Teng, J. G., T. Yu, Y. L. Wong, and S. L. Dong. 2007. “Hybrid FRP–concrete–steel tubular columns: Concept and behavior.” Constr. Build. Mater. 21 (4): 846–854. https://doi.org/10.1016/j.conbuildmat.2006.06.017.
Wang, J., P. Feng, T. Hao, and Q. Yue. 2017. “Axial compressive behavior of seawater coral aggregate concrete-filled FRP tubes.” Constr. Build. Mater. 147: 272–285. https://doi.org/10.1016/j.conbuildmat.2017.04.169.
Wang, W., M. N. Sheikh, and M. N. S. Haidi. 2016. “Axial compressive behaviour of concrete confined with polymer grid.” Mater. Struct. 49 (9): 3893–3908. https://doi.org/10.1617/s11527-015-0761-9.
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© 2020 American Society of Civil Engineers.
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Received: Apr 18, 2019
Accepted: Dec 2, 2019
Published online: May 6, 2020
Published in print: Aug 1, 2020
Discussion open until: Oct 6, 2020
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