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Evaluation of Flexural Strength for UHPC Deck Joints with Lap-Spliced Reinforced Steel Bar

UHPC 바닥판 철근겹침이음 연결부의 휨강도 평가

  • Received : 2011.08.22
  • Accepted : 2011.09.30
  • Published : 2011.11.30

Abstract

Ultra High Performance Concrete(UHPC) is a superior structural material with high strength and durability. Construction of light and slim structures is realized to apply this expectable new materials in practice. This research is a part of the project to develop UHPC precast deck system for hybrid cable stayed bridge. The main object of this study is to investigate behavior of the lap-spliced reinforced connection in UHPC. The major parameter considered in experimental plan was lap-spliced length. The 4-points bending test for 12 specimens were conducted to verify the effect of considered parameters. Test results show that the minimum value of lap spliced length of 300mm which specified in current korea high bridge design code was very conservative for UHPC precast deck system.

Acknowledgement

Grant : 하이브리드사장교 바닥판 개발

Supported by : 한국건설기술연구원

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Cited by

  1. A Study on the Flexural Performance of UHPC Precast Deck-Joint Interface by the Exposure of Steel Fiber vol.06, pp.13, 2014, https://doi.org/10.4236/eng.2014.613090