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- W2004310160 abstract "프리캐스트 방식에 의해 제작이 가능한 격자형 강합성 바닥판의 이음부로서 콘크리트 전단키와 고장력볼트 체결로 구성된 조립식 이음부가 제안된 바 있다. 본 연구에서는 콘크리트 전단키와 고장력볼트로 구성된 이음부의 휨강성과 휨강도를 향상시키고자 단면상세를 개선하였고, 구조실험을 통해 얻은 결과를 기존 볼트체결 이음부와 비교 분석하였다. 비교분석 결과에 의하면, 전단스터드와 가외철근에 의한 이음부 콘크리트 보강으로 뚜렷한 전단균열 감소효과가 있었다. 모멘트-곡률 관계로부터 구한 휨강성을 서로 비교해 본 결과, 단면개선 전의 이음부에 비해 약 47% 정도 휨강성이 증가한 것을 알 수 있었다. 또한, 휨강도 비교결과에 의하면 개선된 이음부의 휨강도는 개선 전에 비해 약 32% 증가하였다. 개선된 이음부의 휨성능을 이음부가 없는 단면과 비교하면, 휨강도의 경우 동등 수준 이상이었으나, 휨강성의 경우는 약 37% 정도 더 작은 것으로 분석되었다. For the joint connection of the precast steel grid composite decks, the prefabricated joint which is composed of concrete shear key and high-tension bolts was already proposed. In this study, for the purpose of increasing the bending stiffness and bending strength of the proposed prefabricated joint section details of the proposed joint are modified, and through experimental tests the bending performance, such as stiffness and strength of a modified joint, is compared with those of the proposed joint. Test and analysis results show that the shear cracks in the concrete shear key are clearly reduced by the strengthening of the shear key using shear studs and additional rebars. According to analysis results of the moment-curvature relationship, bending stiffness of the modified joint is about 47% greater than the stiffness of the proposed joint. Furthermore, the modified joint has about 32% greater bending strength than the proposed joint. Compared to specimens without the joint the modified joint has same or slightly higher bending strength, but about 37% lower bending stiffness." @default.
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- W2004310160 date "2013-07-30" @default.
- W2004310160 modified "2023-10-18" @default.
- W2004310160 title "Evaluation of the Bending Performance of a Modified Steel Grid Composite Deck Joint" @default.
- W2004310160 cites W2012509609 @default.
- W2004310160 doi "https://doi.org/10.11112/jksmi.2013.17.4.038" @default.
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