• Title/Summary/Keyword: qantitative roughness

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The Flexural Behavior including Ductility of Half Precast Concrete Slab with Welded Deformed Wire Fabric (용접철망을 사용한 반두께 P.C.슬래브의 휨 및 연성거동)

  • 이광수;최종수;조민형;신성우
    • Magazine of the Korea Concrete Institute
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    • v.6 no.4
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    • pp.153-160
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    • 1994
  • Ten Half precast concrete slabs reinforced with welded deformed wire fabric were tested under two concentrated loads to investigate the flexural moment and ductile capacity. The test variables were the compressive strength of topping concrete, quantitative roughness, and reinforcernent ratio. The effects of each test variables were studied separately. Test results were as followings. The ultimate strength design method is applicable to predict flexural strength for Half P.C. concrete slab with welded deformed wire fabric and quantitative roughness. It is proper to consider 0.0035 strain ;is yielding stress of the welded deformed wire fabric. The ductility index of Half precast concrete slab with welded deformed wire fabric showed lower value. Therefore to enhance the ductility capacity the normal defomed bar should be used with the welded deformed wire fabric for the longitudinal reinforcement.