• Title/Summary/Keyword: 강상판

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Thermal Effect of Guss Asphalt on Upper Steel Deck of Youngjong Grand Bridge (영종대교 상로도로 강상판의 구스아스팔트 열영향)

  • Lee, Wan-Hoon;Lee, Myeong-Jae
    • International Journal of Highway Engineering
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    • v.4 no.1 s.11
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    • pp.171-181
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    • 2002
  • Guss asphalt used in pavement of a steel deck bridge may cause severe stress and displacement on the bridge as it is treated using very high temperatures ranging from 220oC to 260cC. Therefore, it is critical to estimate the thermal effect of Guss asphalt on the steel deck bridge before the width and pattern of the unit portion are decided in order to minimize impact. In this study, we have conducted a series of numerical analysis of the upper road of Youngjong Grand Bridge, verified the feasibility of numerical value analysis by comparing the results with the data measured, and studied the thermal effects of Guss asphalt on the steel deck bridge according to temperature changes.

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An Experimental Study on Behavior of Field Splice Joints of Longitudinal Rib in Orthotropic Steel Decks (강상판 종리브 현장연결부의 실험적 거동 특성)

  • Choi, Dong Ho;Choi, Hang Yong
    • Journal of Korean Society of Steel Construction
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    • v.13 no.6
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    • pp.621-629
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    • 2001
  • This study consists of static and fatigue tests to evaluate the behavior on the field splice joint of longitudinal rib in orthotropic steel deck specimens. Specifically, static and influence surface tests are performed for the stress distribution at the scallop area and high-strength bolt connection of longitudinal rib to examine the existence of handhole cover plate and the effect of eccentric loads. The ultimate strength of the field splice joint of longitudinal rib is obtained. In fatigue tests, cracks are observed at the scallop in the lower level test and the catastrophic failure of longitudinal rib is occurred following the failure of handhole cover plate in the higher level test. This study gives a basis for the better understanding of the field splice joint of longitudinal rib.

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Field Application of Epoxy Asphalt Mixture for Steel Bridge Deck (에폭시 수지를 이용한 아스팔트 혼합물의 강상판 적용성 평가)

  • Kim, Nakseok
    • Journal of the Society of Disaster Information
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    • v.9 no.2
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    • pp.206-213
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    • 2013
  • The paper presents the field applications and evaluation results of solid epoxy asphalt mixture for steel bridge deck. The material was developed in Japan. The material properties of epoxy asphalt mixture were evaluated through various literature review, and the mix design and mixture evaluation were conducted. According to the research results, the application of epoxy asphalt mixture for steel bridge deck was noticeable compare to the conventional ones. In addition, results from 3D finite element analysis showed that the performance of epoxy asphalt mixture for steel bridge deck was proved to be satisfied. As a result, a pilot test section was constructed using the epoxy asphalt mixture produced from conventional batch plant system. BPT test results showed that friction of the epoxy asphalt mixture was higher than the requirements compare to that of the conventional one.

The Study of Longitudinal Joint with Tensile Grip Connection in Highway Bridges (교축방향 인장이음에 관한 연구)

  • Seo, Seung-Tag
    • Journal of the Korean Society of Industry Convergence
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    • v.9 no.2
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    • pp.155-160
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    • 2006
  • 합성상판을 시공하는 경우 교축방향에 분할된 저강판을 접합 일체화해야 한다. 본 논문에서는 강 콘크리트 합성상판을 대상으로 3종류의 배력철근 방향 이음구조를 제안하며, 보 공시체에 의한 정적 정점피로 실험한다. 그 결과 보의 피로실험 결과 저강판 혹은 고력볼트가 피로파단 하였으며, 3차원 FEM해석에 이음부의 휨 강성도 및 피로강도에 대해서 해석적으로 검토된다.

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