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Journal of the Korea Concrete Institute

J Korea Inst. Struct. Maint. Insp.
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  • Korea Citation Index (KCI)

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Title Evaluation of Flexural Strength for UHPC Deck Joints with Lap-Spliced Reinforced Steel Bar
Authors 황훈희 ; 여인수 ; 조근희 ; 박성용
Page pp.92-99
ISSN 1226-6205
Keywords 초고성능콘크리트 ; UHPC 프리캐스트 바닥판 ; 철근겹침이음 ; 철근겹침이음길이 ; 4점 휨 실험 ; Ultra High Perforce Concrete ; UHPC ; Precast deck system ; Lap-spliced connection ; Lap-spliced length ; 4 points bending test
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.