Finite element parametric analysis of bond-slip performance between epoxy-coated rebar and high-strength concrete
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Epoxy-coated rebar is a crucial material in marine construction. To study the bond performance of epoxy-coated rebar withhigh-strength concrete in different structural forms, pull-out tests were conducted on 18 specimens. The failure patterns andbond-slip behavior of different epoxy-coated rebar-high strength concrete specimens were analyzed. Based on these tests,finite element analysis software Abaqus was used to conduct a parametric analysis by varying the rebar diameter and bondlength, investigating the ultimate bond strength of components under different parameters. The results indicate that due tothe relatively low compressive strength of the concrete, specimens exhibited rebar pull-out failure, concrete splitting failure,and rebar fracture failure during the pull-out tests. As the rebar diameter increased, the anchoring capacity of the epoxycoatedrebar improved. Specifically, for every 1 mm increase in diameter, the ultimate bond load increased by 16.9% to23.9%. Additionally, increasing the bond length of the rebar enhanced the ultimate bond strength of the specimens, with theultimate bond load increasing by 13.2% to 24.2% for every 1d increase in length. The conclusions drawn from this researchprovide technical support for the engineering application of epoxy-coated rebar in high-strength concrete.
Abstract
Epoxy-coated rebar is a crucial material in marine construction. To study the bond performance of epoxy-coated rebar withhigh-strength concrete in different structural forms, pull-out tests were conducted on 18 specimens. The failure patterns andbond-slip behavior of different epoxy-coated rebar-high strength concrete specimens were analyzed. Based on these tests,finite element analysis software Abaqus was used to conduct a parametric analysis by varying the rebar diameter and bondlength, investigating the ultimate bond strength of components under different parameters. The results indicate that due tothe relatively low compressive strength of the concrete, specimens exhibited rebar pull-out failure, concrete splitting failure,and rebar fracture failure during the pull-out tests. As the rebar diameter increased, the anchoring capacity of the epoxycoatedrebar improved. Specifically, for every 1 mm increase in diameter, the ultimate bond load increased by 16.9% to23.9%. Additionally, increasing the bond length of the rebar enhanced the ultimate bond strength of the specimens, with theultimate bond load increasing by 13.2% to 24.2% for every 1d increase in length. The conclusions drawn from this researchprovide technical support for the engineering application of epoxy-coated rebar in high-strength concrete.
참고문헌 (34)
- N. Etteyeb, , Cem. Concr. Compos, 55, pp.241~249 (2015)
- N. Etteyeb, , Cem. Concr. Compos, 65, pp.94~100 (2016)
- C. Zhang, , Bulletin of the Chinese Ceramic Society, 42(7), pp.2382~2391 (2023)
- Z. Cheng, , Hot Working Technology, 45(6), pp.14~19 (2016)
- M. Harikaran, , J. Ceram. Process. Res, 24(2), pp.266~273 (2023)
- M. Chaitanya, , J. Ceram. Process. Res, 24(2), pp.257~265 (2023)
- S. Sridhar, , J. Ceram. Process. Res, 23(4), pp.498~502 (2022)
- K. M Senthilkumar, , J. Ceram. Process. Res, 23(4), pp.541~545 (2022)
- S. Erdogdu, , Cement Concrete Res, 31(6), pp.861~867 (2001)
- H. Z. Lopez-Calvo, , Mater. Corros, 64(7), pp.599~608 (2013)
- P. Montes, , Corrosion-US, 60(10), pp.974~981 (2004)
- X. Zhou, , Prog Org Coat, 136, pp.105200~ (2019)
- M. Cui, , Corros Sci, 159, pp.108131~ (2019)
- F. A. Aljahdali, , Special Publication, 149, pp.507~522 (1994)
- R. F. CEB, , Mater Struct, 6(2), pp.79~118 (1973)
- W. Xue, , Journal of Tongji University, 29(7), pp.769~773 (2001)
- Y. Nie, , Port and Waterway Engineering, 307(8), pp.25~32 (1999)
- Y. Nie, , Build. Sci, 16(1), pp.24~27 (2000)
- O. C. Choi, , ACI Mater. J, 88(2), pp.207~217 (1991)
- Y. Huang, , Structures, 30(305), pp.866~876 (2021)
- D. H. Nguyen, , Eng. Struct, 185, pp.141~158 (2019)
- Y. H. Wang, , Mater Struct, 49(12), pp.5227~5241 (2016)
- Y. Zhang, , Building Structure, pp.1~11
- Y. Ouyang, , Eng Struct, 148, pp.387~398 (2017)
- Y. Ouyang, , Eng Struct, 156, pp.443~459 (2018)
- Y. Xue, , Value Engineering, 42(29), pp.106~108 (2023)
- S, Yin, , Journal of Basic Science and Engineering, 31(1), pp.210~223 (2023)
- "Metallic materials—tensile testing—part 1: method of test at room temperature" (2010), Standards Press
- "Standard for test method of mechanical properties on ordinary concrete" (2019), China Architecture Building Press
- "Code for design of concrete structures" (2015), China Architecture Industry Press
- R. Eligehausen, , Calif. The Univ (2016)
- G. J. Morris, , Con-ference Proceedings of the New Zealand Society of Earthquake Engi-neering (2015)
- "Epoxy resin coateel bars", China Architecture Industry Press, ~ (2016)
- M. Sun, , pp.2015