• Title/Summary/Keyword: Deck type void slab

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Experimental Study on Bending and Shear Performance of Deck Type Void Slab with Trapezoidal Hollow Ball (사다리꼴 형상의 경량체를 가진 데크형 중공슬래브의 휨 및 전단성능에 대한 실험적 연구)

  • Kim, Pil Jung;Kim, Sang Mo;Park, Joon Hyuk
    • Journal of Korean Society of Steel Construction
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    • v.29 no.6
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    • pp.443-453
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    • 2017
  • In this study, a trapezoidal hollow ball is used, instead of a spherical hollow ball commonly used in void slab, to secure the high hollow ratio in the deck type void slab. The bending and shear performance was measured with consideration for the shape change of the hollow ball. And to confirm the effect of deck plate and truss wire on shear performance, experiments were performed depending on the installation directions of the one-way deck plate. As a result, the bending performance of the deck type void slab with a trapezoidal hollow ball was similar to that of the void slab with a spherical hollow ball. However, according to the data of shear strength examined, the contribution of shear performance enhancement of the truss wire had a more effect on the shear performance of deck type void slab, rather than the influence by changing of the shape of hollow ball. In the previous studies, the shear strength is reduced to about 60%, due to the reduction of the effective section of concrete by installation of hollow ball. But in this experiment, the maximum load of specimen, in which the deck was installed in horizontal direction, so expected to have no influence on the shear performance, was only reduced to about 87%, due to the truss framework of truss wire.

Structural Performance Evaluation on Flexural and Shear Capacity for Weight Reducing Steel Wire-Integrated Void Deck Plate Slab (자중저감 철선일체형 중공 데크플레이트 슬래브의 휨 및 전단내력에 대한 구조성능평가)

  • Kim, Sang-Seup;Ryu, Deog-Su;Boo, Yoon-Seob
    • Journal of Korean Society of Steel Construction
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    • v.24 no.4
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    • pp.411-422
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    • 2012
  • The purpose of this study is to evaluate the flexural and shear capacity of steel wire-integrated void deck plate slabs. In order to evaluate flexural and shear capacity, we make five 150mmspecimens and three 200mmspecimens by slab depth as main variable. Each series of specimen is comprised of an existing steel wire-integrated deck-plate slab and two specimens using topping depth as variable. From the series of experiments, steel wire-integrated void deck plate slabs has any decline in flexural and shear performance. Therefore, a void-deck-plate slab which inserts Omega-steel plate showed reducing a using concrete-volume and had flexural and shear capacity following existing steel wire-integrated deck-plate.

Flexural Capacity and CO2 Reduction Evaluation for Composite Beam with Weight Reducing Steel Wire-Integrated Void Deck Plate slab (자중저감 철선일체형 중공 데크플레이트 슬래브를 사용한 합성보의 휨내력 및 CO2 감소량 평가)

  • Kim, Sang-Seop;Park, Dong-Soo;Boo, Yoon-Seob
    • Journal of Korean Society of Steel Construction
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    • v.24 no.3
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    • pp.313-323
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    • 2012
  • The purpose of this study is to evaluate $CO_2$ reduction and the flexural performance of steel wire-integrated void deck plate slabs that were inserted in omega-shaped steel plates to reduce concrete and welded H-section beams. The void deck plate slab can secure the structure, not only reducing the weight of the building but it is also eco-friendly. Therefore, this study evaluated the flexural performance of the composite beam by conducting a monotonic loading test with the use of actuators. It quantitatively evaluated the $CO_2$ emission based on earlier studies. The main test parameters are the concrete thickness of upper slabs, and the interrupted width of the omega-shaped steel plate. The result of the test showed that the welded H-section beam applied steel wire-integrated void deck plate slabs that were inserted into the omega-shaped steel plate declined in flexural performance on the composite beam after reducing concrete volume. Likewise, it is effective in reducing $CO_2$.