Effects of Cross-Sectional Size and Shape on the Longitudinal Tensile and Anchoring Properties of CFRP Cables
Publication: Journal of Materials in Civil Engineering
Volume 31, Issue 5
Abstract
Carbon fiber–reinforced polymer (CFRP) is very suitable for use as a prestressed cable and can replace conventional steel cables in cable roofs. In engineering practice, the anchoring length increases rapidly as the cross-sectional area of the CFRP cable increases, owing to the strong orthotropy of unidirectional CFRP material, which inevitably leads to an increase in the weight of anchorages. As a part of the cable roof, an excessive increase in the weight of anchorages offsets the advantage of the light weight of CFRP cables and impedes the improvement of the span of CFRP cable roofs. Therefore, it is necessary to investigate the effects of the cross-sectional size and shape on the anchoring length of CFRP cables for striking a balance between the anchoring properties and weight of anchorages. In this study, a series of static tensile tests were conducted on various sizes of CFRP pultruded plates and rods. Based on experimental results and anchoring forms, the anchoring lengths of CFRP plates and rods are calculated and analyzed. Optimized cross-sectional design sizes of CFRP cables are proposed to obtain a highly efficient anchoring length. This is a critical design step for controlling the weight of anchorages before the application of full-scale CFRP cable roofs in engineering practice. The results of this research can help to promote the widespread and standardized application of CFRP cables in cable roofs.
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Acknowledgments
The authors of this paper would like to express their gratitude for the financial support provided by the National Natural Science Foundation of China, China (No. 51525803), and the National Key Research and Development Plan of China, China (No. 2016YFC0701103).
References
ACI (American Concrete Institute). 2004. Guide test methods for fiber reinforced polymers (FRPs) for reinforcing or strengthening concrete structures. ACI 440.3R. Farmington Hills, MI: ACI.
Al-Mayah, A., K. Soudki, and A. Plumtree. 2001. “Mechanical behavior of CFRP rod anchors under tensile loading.” J. Compos. Constr. 5 (2): 128–135. https://doi.org/10.1061/(ASCE)1090-0268(2001)5:2(128).
Al-Mayah, A., K. Soudki, and A. Plumtree. 2006. “FEM and mathematical models of the interfacial contact behaviour of CFRP-metal couples.” Compos. Struct. 73 (1): 33–40. https://doi.org/10.1016/j.compstruct.2005.01.024.
Al-Mayah, A., K. Soudki, and A. Plumtree. 2008. “Effect of rod profile and strength on the contact behavior of CFRP-metal couples.” Compos. Struct. 82 (1): 19–27. https://doi.org/10.1016/j.compstruct.2006.11.004.
ASTM. 2014. Standard test method for tensile properties of polymer matrix composite materials. ASTM D3039/D3039M. West Conshohocken, PA: ASTM.
ASTM. 2016a. Standard test method for tensile properties of fiber reinforced polymer matrix composite bars. ASTM D7205/D7205M-06. West Conshohocken, PA: ASTM.
ASTM. 2016b. Standard test method for tensile properties of pultruded glass-fiber-reinforced plastic rod. ASTM D3916-08(2016). West Conshohocken, PA: ASTM.
Collings, T. A. 1974. “Transverse compressive behavior of unidirectional carbon fibre reinforced plastic.” Composites 5 (3): 108–116. https://doi.org/10.1016/0010-4361(74)90548-5.
Fang, Z., K. Y. Zhang, and B. Tu. 2013. “Experimental investigation of a bond-type anchorage system for multiple FRP tendons.” Eng. Struct. 57 (1): 364–373. https://doi.org/10.1016/j.engstruct.2013.09.038.
Feng, P., L. P. Ye, and J. G. Teng. 2007. “Large-span woven web structure made of fiber-reinforced polymer.” J. Compos. Constr. 11 (2): 110–119. https://doi.org/10.1061/(ASCE)1090-0268(2007)11:2(110).
Gonzalez, C., and J. LLorca. 2007. “Mechanical behavior of unidirectional fiber-reinforced polymers under transverse compression: Microscopic mechanisms and modeling.” Compos. Sci. Technol. 67 (13): 2795–2806.
Han, Q. H., L. C. Wang, and J. Xu. 2015. “Experimental research on mechanical properties of transverse enhanced and high-temperature-resistant CFRP tendons for prestressed structure.” Constr. Build. Mater. 98 (1): 864–874. https://doi.org/10.1016/j.conbuildmat.2015.09.003.
Han, Q. H., L. C. Wang, and J. Xu. 2016. “Experimental research on fracture behaviors of damaged CFRP tendons: Fracture mode and failure analysis.” Constr. Build. Mater. 112 (1): 1013–1024. https://doi.org/10.1016/j.conbuildmat.2016.03.036.
Han, Q. H., L. C. Wang, and J. Xu. 2017. “Test and numerical simulation of large angle wedge type of anchorage using transverse enhanced CFRP tendons for beam string structure.” Constr. Build. Mater. 144 (1): 225–237. https://doi.org/10.1016/j.conbuildmat.2017.03.150.
Liu, Y., B. Zwingmann, and M. Schlaich. 2015. “Carbon fiber reinforced polymer for cable structures: A review.” Polymers 7 (10): 2078–2099. https://doi.org/10.3390/polym7101501.
Mei, K. H., R. Seracino, and Z. T. Lv. 2016. “An experimental study on bond-type anchorages for carbon fiber-reinforced polymer cables.” Constr. Build. Mater. 106 (1): 584–591. https://doi.org/10.1016/j.conbuildmat.2015.12.059.
Meier, U. 1987. “Proposal for a carbon fibre reinforced composite bridge across the Strait of Gibraltar at its narrowest site.” Proc. Inst. Mech. Eng. B 201 (2): 73–78. https://doi.org/10.1243/PIME_PROC_1987_201_048_02.
Meier, U. 2012. “Carbon fiber reinforced polymer cables: Why? Why not? What if?” Arab. J. Sci. Eng. 37 (2): 399–411. https://doi.org/10.1007/s13369-012-0185-6.
Mohee, F. M., A. Al-Mayah, and A. Plumtree. 2016. “Anchor for CFRP plates: State-of-the-art review and future potential.” Composites Part B 90 (1): 432–442. https://doi.org/10.1016/j.compositesb.2016.01.011.
Schlaich, M., Y. Liu, and B. Zwingmann. 2014. “Spoke-wheel cable roof with CFRP tension members.” Bautechnik 91 (10): 728–741. https://doi.org/10.1002/bate.201400031.
Schlaich, M., Y. Liu, and B. Zwingmann. 2015. “Carbon fibre reinforced polymer for orthogonally loaded cable net structures.” Struct. Eng. Int. 25 (1): 34–42. https://doi.org/10.2749/101686614X14043795570534.
Schmidt, J. W., A. Bennitz, B. Taljsten, P. Goltermann, and H. Pedersen. 2012. “Mechanical anchorage of FRP tendons—A literature review.” Constr. Build. Mater. 32 (1): 110–121. https://doi.org/10.1016/j.conbuildmat.2011.11.049.
Tanks, J. D., D. K. Harris, and S. R. Sharp. 2016. “Mechanical response of unidirectional composite bars loaded in transverse compression.” Composites Part B 97 (1): 18–25. https://doi.org/10.1016/j.compositesb.2016.04.051.
Wang, L. C., J. Y. Zhang, J. Xu, and Q. Han. 2018. “Anchorage systems of CFRP cables in cable structures: A review.” Constr. Build. Mater. 160 (1): 82–99. https://doi.org/10.1016/j.conbuildmat.2017.10.134.
Zhang, B. R., and B. Benmokrane. 2004. “Design and evaluation of a new bond-type anchorage system for fiber reinforced polymer tendons.” Can. J. Civ. Eng. 31 (1): 14–26. https://doi.org/10.1139/l03-062.
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©2019 American Society of Civil Engineers.
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Received: Mar 26, 2018
Accepted: Oct 26, 2018
Published online: Mar 14, 2019
Published in print: May 1, 2019
Discussion open until: Aug 14, 2019
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