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http://dx.doi.org/10.5659/AIKAR.2020.22.1.33

Pullout Test of Headed Reinforcing Bar in RC or SFRC Members with Side-Face Blowout Failure  

Lee, Chang-Yong (Department of Architecture Engineering, Hanbat National University)
Kim, Seung-Hun (Department of Architecture Engineering, Hanbat National University)
Lee, Yong-Taeg (Department of Architecture Engineering, Hanbat National University)
Publication Information
Architectural research / v.22, no.1, 2020 , pp. 33-39 More about this Journal
Abstract
In this study, side-face blowout failure strength of high strength headed reinforcing bar, which is vertically anchoring between RC or SFRC members, is evaluated throughout pullout test. The major test parameters are content ratio of high strength steel fibers, strength of rebar, length of anchorage, presence of shear reinforcement, and the side concrete cover thickness planned to be 1.3 times of the rebar. In pullout test, tensile force was applied to the headed reinforcing bar with the hinged supports positioned 1.5 and 0.7 times the anchorage length on both sides of the headed reinforcing bar. As a result, the cone-shaped crack occurred where the headed reinforcing bar embedded and finally side-face blowout failure caused by bearing pressure of the headed reinforcing bar. The tensile strength of specimens increased by 13.0 ~26.2% with shear reinforcement. The pullout strength of the specimens increased by 3.6 ~15.4% according to steel fiber reinforcement. Increasing the anchoring length and shear reinforcement were evaluated to reduce the stress bearing ration of the total stress.
Keywords
headed reinforcing bar; anchorage; bond; pullout test;
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Times Cited By KSCI : 4  (Citation Analysis)
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1 L. Hou, B. Zhou, S. Guo, N. Zhuang, & D. Chen (2018). "Bondslip behavior between pre-corroded rebar and steel fiber reinforced concrete." Construction and Building Materials, 182: 637-645.   DOI
2 M. Pourbaba, E. Asefi, H Sadaghian, & A. Mirmiran (2018). "Effect of age on the compressive strength of ultra-highperformance fiber-reinforced concrete." Construction and Building Materials, 175: 402-410.   DOI
3 M. Toth, B. Bokor, & A. Sharma (2019). "Anchorage in steel fiber reinforced concrete-concept, experimental evidence and design recommendations for concrete cone and concrete edge breakout failure modes." Engineering Structures, 181: 60-75.   DOI
4 M. Weglorz (2017). "Influence of headed anchor group layout on concrete failure in tension." Procedia Engineering, 193:242-249.   DOI
5 N. D. Tung, & N. V. Tue (2018). "Shear resistance of steel fiberreinforced concrete beams without conventional shear reinforcement on the basis of the critical shear band concept." Engineering Structures, 168: 698-707.   DOI
6 S. Gali, & K. Subramaniam (2017). "Investigation of the dilatant behavior of cracks in the shear response of steel fiber reinforced concrete beams." Engineering Structures, 152:832-842.   DOI
7 S. H. Kim, S. C Peak, C. Y. Lee, H. W. Yuk, & Y. T. Lee (2018). "Development strength of headed reinforcing bars for steel fiber reinforced concrete by pullout test". Architectural Research, 20: 129-135.   DOI
8 S. J. Jang, & H. D. Yun (2018). "Combined effects of steel fiber and coarse aggregate size on the compressive and flexural toughness of high strength concrete." Engineering Structures, 185: 203-211.
9 S. Yilmaz, M. A. Ozen, & Y. Yardim (2013). "Tensile behavior of post-installed chemical anchors embedded to low strength concrete." Construction and Building Materials, 47: 861-866.   DOI
10 S. Y. Seo, B. R. Nam, & S. K. Kim (2016). "Tensile strength of the grout-filled head-splice-sleeve." Construction and Building Materials, 124: 155-166.   DOI
11 Z. M. Yaseen, M. T. Tran, S. W. Kim, T. Bakhshpoori, & R. C. Deo (2018). "Shear strength prediction of steel fiber reinforced concrete beam using hybrid intelligence models: A new approach." Engineering Structures, 177: 244-255.   DOI
12 C. G. Berrocal, I. Lofgren, & K. Lundgren (2018). "The effect of fibres on steel bar corrosion and flexural behaviour of corroded RC beams." Engineering Structures, 163: 409-425.   DOI
13 ACI (2002). "Code requirements for nuclear safety related concrete structures." American Concrete Institute, ACI 352-02.
14 ACI (2007). "Code requirements for nuclear safety related concrete structures." American Concrete Institute, ACI349-07.
15 B. I. Bae, J. H. Chung, H. K. Choi, H. S. Jung, & C. S. Choi (2018). "Experimental study on the cyclic behavior of steel fiber reinforced high strength concrete columns and evaluation of shear strength." Engineering Structures, 157: 250-267.   DOI
16 B. H. AbdelAleem, & A. A.A. Hassan (2019). "Effect of combining steel fibers with crumb rubber on enhancing the behavior of beam-column joints under cyclic loading." Engineering Structures, 182: 510-527.   DOI
17 C. C. Hung, & C. Y. Chueh (2016). "Cyclic behavior of UHPFRC flexural members reinforced with high strength steel rebar." Engineering Structures, 122: 108-120.   DOI
18 F. Delhomme, G. Debicki, & Z. Chaib (2010). "Experimental behaviour of anchor bolts under pullout and relaxation tests." Construction and Building Materials, 24: 266-274.   DOI
19 H. J. Sim, S. C. Chun, & S. H. Choi (2016). "Anchorage strength of headed reinforcing bars in steel fiber-reinforced UHPC of 120 and 180 MPA." Journal of the Korea Concrete Institute, 28:365-373.   DOI
20 H. J. Sim, & S. C. Chun (2018). "A reevaluation of anchorage strength of headed reinforcing bars in exterior beam-column joints." Journal of the Korea Concrete Institute, 30: 207-216.   DOI
21 J. Wang, J. Qi, T. Tong, Q. Xu, & H. Xiu (2019). "Static behavior of large stud shear connectors in steel-UHPC composite structures." Engineering Structures, 178: 534-542.   DOI
22 KCI (2012). "Korean concrete structure Code." Korea Concrete Institute, KCI 2012.
23 KCI (2017). "KCI Model Code 2017." Korea Concrete Institute, KCI-M-18-006.
24 K. N. Chi, C. K. Chiu, & K. C. Lin (2018). "Study on straight development length of tensile threaded bars in high strength reinforced concrete members." Construction and Building Materials, 183: 661-674.   DOI