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Title |
Cracking Behavior and Flexural Performance of RC Beam with Strain Hardening Cement Composite and High-Strength Reinforcing Bar
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Authors |
장석준(Seok-Joon Jang) ; 강수원(Su-Won Kang) ; 윤현도(Hyun-Do Yun) |
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DOI |
http://dx.doi.org/10.4334/JKCI.2015.27.1.037 |
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Keywords |
고강도철근 ; 변형경화형 시멘트복합체 ; 휨 성능 ; 균열양상 high-strength reinforcing bar ; strain hardening cement composite ; flexural performance ; cracking behavior |
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Abstract |
This paper describes the effect of strain hardening cement composite (SHCC) material on structure performance of reinforced concrete (RC) beams with high-strength reinforcing bar. Also, this paper explores the structure application of SHCC in order to mitigation cracking damage and improve the ductility of flexural RC members. The prediction model for flexural strength of doubly reinforced SHCC beams are investigated in this study. To achieve the these objectives, a total of 6 rectangular beam specimens were tested under four point monotonic loading condition. The main parameters included the types of cement composite and reinforcing bar. Test results indicated that reinforced beam specimens with SHCC material were improved the structure performances and damage characteristics. Specifically, replacement of conventional high-strength concrete with SHCC materials has the potential of high-strength steel bar as flexural reinforcement on RC members. It is remarkable that suggested method of reinforced SHCC beams with high-strength reinforcing bar could be used usefully to the structure design.
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