홈 > 주제분류 > aa > International Journal of Concrete Structures and Materials > International Journal of Concrete Structures and Materials : Vol.10 No.4
  • Shear Crack Control for High Strength Reinforced Concrete Beams Considering the Effect of Shear-Span to Depth Ratio of Member
  • 분 류 연구문헌 - 학회논문 - 논문
  • ISSN 1976-0485
  • 저자 Chien-Kuo Chiu, Takao Ueda, Kai-Ning Chi, Shao-Qian Chen
  • 페이지 pp.407~424
  • 수록지 International Journal of Concrete Structures and Materials : Vol.10 No.4
  • 발행년도 2016년 - 12월
  • 소장위치 토목연구정보센터
  • 통제번호 1950302
  • 키워드 high-strength, reinforced, concrete, shear, crack, serviceability, reparability
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초록

This study tests ten full-size simple-supported beam specimens with the high-strength reinforcing steel bars (SD685 and SD785) using the four-point loading. The measured compressive strength of the concrete is in the range of 70?100 MPa. The main variable considered in the study is the shear-span to depth ratio. Based on the experimental data that include maximum shear crack width, residual shear crack width, angle of the main crack and shear drift ratio, a simplified equation are proposed to predict the shear deformation of the high-strength reinforced concrete (HSRC) beam member. Besides the post-earthquake damage assessment, these results can also be used to build the performance-based design for HSRC structures. And using the allowable shear stress at the peak maximum shear crack width of 0.4 and 1.0 mm to suggest the design formulas that can ensure serviceability (long-term loading) and reparability (short-term loading) for shear-critical HSRC beam members.

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