Flexural Behavior of New Hybrid Profiled Steel-FRP T-Beams Filled with Concrete: Development and Validation
Publication: Journal of Composites for Construction
Volume 24, Issue 2
Abstract
This study presents an innovative hybrid profiled steel- and fiber-reinforced polymer (FRP) reinforced concrete (HPSFRC) structural system that primarily consists of thin semiclosed T-shaped cold-formed steel sheeting that is externally enclosed with an FRP sheet and filled with concrete. The experimental study was conducted in two interdependent parts: a development study and a validation study. In the development study, six specimens were tested to determine the best interlocking technique between the concrete flange and the other components of the cross section. In addition, two specimens were examined to define the shear strength of the steel-concrete composite profiled system. The validation study presented the flexural behaviors of HPSFRC T-beams with different reinforcement configurations. The test results of the HPSFRC beams were assessed in terms of the behavior of a conventional reinforced concrete T-beam and a composite profiled T-beam. The HPSFRC T-beams achieved a ductility comparable to that of a composite profiled beam but exhibited a higher flexural strength. The flexural behaviors of the HPSFRC beams can be controlled using additional longitudinal reinforcement at the beam tension side. The beam with additional steel bars exhibited ductile behavior with a stable increase in the beam resistance to the applied load; however, the addition of FRP layers enhanced the flexural capacity of the beam and greatly controlled the deformability of the beam after steel yielding, resulting in the lowest measured residual deflection.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
References
ACI (American Concrete Institute). 2014. Building code requirements for structural concrete and commentary. ACI 318. Farmington Hills, MI: ACI.
ASTM. 2017a. Standard specification for deformed and plain carbon-steel bars for concrete reinforcement. A615/A615M–18. West Conshohocken, PA: ASTM.
ASTM. 2017b. Standard test methods and definitions for mechanical testing of steel products. ASTM A370-17a. West Conshohocken, PA: ASTM.
Bakis, C. E., L. C. Bank, V. Brown, E. Cosenza, J. F. Davalos, J. J. Lesko, A. Machida, S. H. Rizkalla, and T. C. Triantafillou. 2002. “Fiber-reinforced polymer composites for construction—State-of-the-art review.” J. Compos. Constr. 6 (2): 73–87. https://doi.org/10.1061/(ASCE)1090-0268(2002)6:2(73).
Barth, K. E., G. K. Michaelson, M. G. Barker, and D. R. Snyder. 2013. “Development of a shallow press-brake formed tub girder for short-span steel bridges.” In Durability of bridge structures: Proc., 7th New York City Bridge Conf., 87. Boca Raton, FL: CRC Press.
Deng, Y., B. M. Phares, and O. W. Steffens. 2016. “Experimental and numerical evaluation of a folded plate girder system for short-span bridges—A case study.” Eng. Struct. 113 (Apr): 26–40. https://doi.org/10.1016/j.engstruct.2016.01.027.
El-Hacha, R., and D. Chen. 2012. “Behavior of hybrid FRP–UHPC beams subjected to static flexural loading.” Compos. Part B 43 (2): 582–593. https://doi.org/10.1016/j.compositesb.2011.07.004.
Fahmy, M. F. M., and Z. S. Wu. 2016. “Exploratory study of seismic response of deficient lap-splice columns retrofitted with near surface–Mounted basalt FRP bars.” J. Struct. Eng. 142 (6): 04016020. https://doi.org/10.1061/(ASCE)ST.1943-541X.0001462.
Fam, A., and T. Skutezky. 2006. “Composite T-Beams using reduced-scale rectangular FRP tubes and concrete slabs.” J. Compos. Constr. 10 (2): 172–181. https://doi.org/10.1061/(ASCE)1090-0268(2006)10:2(172).
Ibrahim, A. M., M. F. M. Fahmy, and Z. S. Wu. 2016a. “3D finite element modeling of bond-controlled behavior of steel and basalt FRP-reinforced concrete square bridge columns under lateral loading.” Compos. Struct. 143 (May): 33–52. https://doi.org/10.1016/j.compstruct.2016.01.014.
Ibrahim, A. M. A., Z. S. Wu, M. F. M. Fahmy, and D. Kamal. 2016b. “Experimental study on cyclic response of concrete bridge columns reinforced by steel and basalt FRP reinforcements.” J. Compos. Constr. 20 (3): 04015062. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000614.
Idris, Y., and T. Ozbakkaloglu. 2014. “Flexural behavior of FRP-HSC-steel composite beams.” Thin Walled Struct. 80 (Jul): 207–216. https://doi.org/10.1016/j.tws.2014.03.011.
Keo, P., C. Lepourry, H. Somja, and F. Palas. 2018. “Behavior of a new shear connector for U-shaped steel-concrete hybrid beams.” J. Constr. Steel Res. 145 (Jun): 153–166. https://doi.org/10.1016/j.jcsr.2018.01.028.
Mirmiran, A., and M. Shahawy. 1995. “A novel FRP-concrete composite construction for the infrastructure.” In Restructuring: America and beyond, 1663–1666. Reston, VA: ASCE.
Mohamed, H. M., and R. Masmoudi. 2010. “Flexural strength and behavior of steel and FRP-reinforced concrete-filled FRP tube beams.” Eng. Struct. 32 (11): 3789–3800. https://doi.org/10.1016/j.engstruct.2010.08.023.
Nakamura, S. 2002. “Bending behavior of composite girders with cold formed steel U section.” J. Struct. Eng. 128 (9): 1169–1176. https://doi.org/10.1061/(ASCE)0733-9445(2002)128:9(1169).
Oehlers, D. J. 1993. “Composite profiled beams.” J. Struct. Eng. 119 (4): 1085–1100. https://doi.org/10.1061/(ASCE)0733-9445(1993)119:4(1085).
Uy, B., and M. A. Bradford. 1995. “Ductility of profiled composite beams. Part I: Experimental study.” J. Struct. Eng. 121 (5): 876–882. https://doi.org/10.1061/(ASCE)0733-9445(1995)121:5(876).
Wu, Z., C. Yang, K. Iwashita, and H. Mishima. 2011. “Development of damage-controlled latter cast FRP–RC hybrid girders.” Compos. Part B 42 (6): 1770–1777. https://doi.org/10.1016/j.compositesb.2011.01.019.
Yu, T., Y. L. Wong, J. G. Teng, S. L. Dong, and E. S. Lam. 2006. “Flexural behavior of hybrid FRP-concrete-steel double-skin tubular members.” J. Compos. Constr. 10 (5): 443–452. https://doi.org/10.1061/(ASCE)1090-0268(2006)10:5(443).
Zhang, P., H. Zhu, G. Wu, S. Meng, and Z. Wu. 2016. “Flexural performance of HFRP-RC composite T-beams with different interfaces.” J. Compos. Constr. 21 (3): 04016101. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000757.
Zhao, J. L., J. G. Teng, T. Yu, and L. J. Li. 2016. “Behavior of large-scale hybrid FRP–Concrete–steel double-skin tubular beams with shear connectors.” J. Compos. Constr. 20 (5): 04016015. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000669.
Zhou, X., Y. Zhao, J. Liu, Y. F. Chen, and Y. Yang. 2019. “Bending experiment on a novel configuration of cold-formed U-shaped steel-concrete composite beams.” Eng. Struct. 180 (Feb): 124–133. https://doi.org/10.1016/j.engstruct.2018.11.001.
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Published In
Journal of Composites for Construction
Volume 24 • Issue 2 • April 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Jan 14, 2019
Accepted: Aug 28, 2019
Published online: Jan 22, 2020
Published in print: Apr 1, 2020
Discussion open until: Jun 22, 2020
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