Rectangular Filament-Wound Glass Fiber Reinforced Polymer Tubes Filled with Concrete under Flexural and Axial Loading: Experimental Investigation
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Volume 9, Issue 1
Abstract
This paper presents results of an experimental investigation on three beams and five short columns, consisting of glass fiber reinforced polymer concrete-filled rectangular filament-wound tubes (CFRFTs). The tubes included fibers oriented at ° and 90° with respect to the longitudinal axis. Additional longitudinal fibers [0°] were provided in flanges for flexural rigidity. Beams included totally filled tubes and a tube partially filled with concrete, which had a central hole for reducing deadweight. The effect of reinforcement ratio was examined by using tubes of two different sizes. Flexural behavior of CFRFT was compared to concrete-filled rectangular steel tubes (CFRSTs) of similar reinforcement ratios. Short columns were tested under eccentricity ratios of 0, 0.09, 0.18, and 0.24, where is the section depth. Transverse strains were measured around the perimeter of concentrically loaded column to evaluate confinement effect. The study showed that CFRFT is a feasible system that could offer similar flexural strength to CFRST. The tube laminate structure and its progressive failure contribute to the slightly nonlinear behavior of beams. The CFRFT beam with inner hole had an overall strength-to-weight ratio, 77% higher than the totally filled beam, but failed in compression. Bulging of CFRFT columns has limited their confinement effectiveness.
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Acknowledgments
The writers wish to acknowledge financial support provided by the Network of Centres of Excellence on Intelligent Sensing for Innovative Structures (ISIS Canada), the University of Manitoba, the Constructed Facilities Laboratory (CFL) of North Carolina State University, and Composite Atlantic Ltd. They are also grateful to Jerry Atkinson at the CFL.
References
American Concrete Institute (ACI). Committee 318. (1999). “Building code requirements for reinforced concrete and commentary.” ACI 318M-99/ACI 318RM-99, Detroit.
American Society for Testing and Materials (ASTM). (1987). “Standard test method for compressive properties of polymer matrix composite materials.” D3410-87, West Conshohocken, Pa.
American Society for Testing and Materials (ASTM). (2000). “Standard test method for tensile properties of polymer matrix composite materials.” D3039/D3039M-00, West Conshohocken, Pa.
Burgueno, R., Davol, A., and Seible, F. (1998). “The carbon shell system for modular bridge components.” Proc., 1st Int. Conf. on Composites in Infrastructure ICCI’96, H. Saadatmanesh, and M. R. Ehsani, eds., Tucson, Ariz., 341–354.
Daniel, I. M., and Ishai, O. (1994). Engineering mechanics of composite materials, Oxford University Press, New York.
Fam, A., Flisak, B., and Rizkalla, S. (2003). “Experimental and analytical investigations of concrete-filled fiber-reinforced polymer tubes subjected to combined bending and axial loads.” ACI Struct. J., 100(4), 499–509.
Fam, A., Mandal, S., and Rizkalla, S. (2005). “Rectangular filament wound GFRP tubes filled with concrete under flexural and axial loading: Analytical modeling.” J. Compos. Constr., 9(1), 34-43.
Fam, A. Z., and Rizkalla, S. H. (2001a). “Behavior of axially loaded concrete-filled circular fiber reinforced polymer tubes.” ACI Struct. J., 98(3), 280–289.
Fam, A. Z., and Rizkalla, S. H. (2001b). “Confinement model for axially loaded concrete confined by FRP tubes.” ACI Struct. J., 98(4), 451–461.
Fardis, M. N., and Khalili, H. (1981). “Concrete encased in fibreglass-reinforced plastic.” ACI Struct. J., 38, 440–446.
Hall, J. E., and Mottram, J. T. (1998). “Combined FRP reinforcement and permanent formwork for concrete members.” J. Compos. Constr., 2(2), 78–86.
Kilpatrick, A. E., and Rangan, B. V. (1997). “Tests on high-strength composite concrete columns.” Research Rep. No. 1/97, School of Civil Engineering, Curtin Univ. of Technology, Perth, Western Australia.
Lu, Y. Q., and Kennedy, D. J. L. (1992). “The flexural behavior of concrete-filled hollow structural sections.” Structural Engineering Rep. No. 178, Dept. of Civil Engineering, Univ. of Alberta, Alberta, Canada.
Mirmiran, A., Shahawy, M., El Khoury, C., and Naguib, W. (2000). “Large beam-column tests on concrete-filled composite tubes.” ACI Struct. J., 97(2), 268–276.
Mirmiran, A., Shahawy, M., and Samaan, M. (1999). “Strength and ductility of hybrid FRP-concrete beam-columns.” J. Struct. Eng., 125(10), 1085–1093.
Mo, Y. L., and Yeh, Y. K. (2004). “Seismic retrofit of hollow rectangular bridge columns.” J. Compos. Constr., 8(1), 43–51.
Nanni, A., and Norris, M. (1995). “FRP-jacketed concrete under flexure and combined flexure-compression.” Constr. Build. Mater., 9(9), 273–281.
Neville, A. M. (1968). Properties of concrete, 2nd Ed., McGraw-Hill, New York.
Tomii, M., and Sakino, K. (1979). “Experimental studies on the ultimate moment of concrete filled square steel tubular beam-columns.” Translation of A.I.J., 275, 55–65.
Triantafillou, T. C., and Meier, U. (1992). “Innovative design of FRP combined with concrete.” Proc., 1st Int. Conf. on Advanced Composite Materials for Bridges and Structures (ACMBS), Sherbrooke, Quebec, 491–499.
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Information
Published In
Journal of Composites for Construction
Volume 9 • Issue 1 • February 2005
Pages: 25 - 33
Copyright
© 2005 ASCE.
History
Received: Dec 3, 2003
Accepted: Jun 24, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005
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