Journal of the Architectural Institute of Korea Structure & Construction (대한건축학회논문집:구조계)

Architectural Institute of Korea (대한건축학회)
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Evaluation on Tension Stiffening and Cracking Behavior of Ultra-High Performance Concrete Members with Strands

강연선으로 보강된 초고성능 콘크리트 인장부재의 인장강화 및 균열거동 평가

  • Received : 2018.12.28
  • Accepted : 2019.03.04
  • Published : 2019.05.30
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Abstract

Ultra-high performance concrete (UHPC) has high compressive and tensile strengths due to the particle packing, and its ductile behavior can be ensured by utilizing steel fibers. However, since the UHPC members exhibit different characteristics of crack behavior and tensile behavior from normal concrete, the tension stiffening and cracking characteristics of the UHPC should be accurately modeled for the design and analysis of the UHPC members. In this study, uniaxial tension tests was conducted on the UHPC members with strands, where the test variables were diameter and reinforcing ratio of strands. Detailed analyses were also conducted to identify the tensile characteristics and crack behavior of the UHPC members. By comparing the test results with current code provisions and other models proposed by existing researchers, their applicability for estimation of crack behavior of the UHPC members was examined.

Keywords

Acknowledgement

Supported by : 한국연구재단

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