Journal of the Korea institute for structural maintenance and inspection (한국구조물진단유지관리공학회 논문집)

Korea Institute for Structural Maintenance Inspection (한국구조물진단유지관리공학회)
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Analysis Study on Fatigue Stress on the Orthotropic Steel Deck Applied Polymer Concrete Pavement

폴리머 콘크리트 포장을 적용한 강바닥판의 피로응력에 관한 해석적 연구

  • 한범진 (성균관대학교 초고층.장대교량학과) ;
  • 윤상일 (성균관대학교 글로벌건설엔지니어링학과) ;
  • 최병진 (성균관대학교 글로벌건설엔지니어링학과) ;
  • 최진웅 (성균관대학교 건설환경시스템공학과) ;
  • 박선규 (성균관대학교 글로벌건설엔지니어링학과)
  • Received : 2014.04.21
  • Accepted : 2014.06.12
  • Published : 2014.09.30
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Abstract

In this study, polysulfide epoxy polymer concrete was chosen as an ultra thin bridge deck overlay, and the effect of polymer concrete pavement on the fatigue stress range of the orthotropic steel deck was analyzed through the comparative analysis with epoxy asphalt pavement and SFRC pavement. Abaqus was used to estimate the fatigue stress range, and signed von-mises stress was used to estimate fatigue stress range according to pavement materials and thickness, considering there were multi axis stresses which have longitudinal and lateral direction on the welded parts of the steel deck.

본 연구에서는 초박층 교면포장으로 폴리설파이드 에폭시 폴리머 콘크리트 포장을 선정하여, 에폭시 아스팔트 포장, SFRC 포장과의 비교 분석을 통해 폴리머 콘크리트 포장이 강바닥판의 피로응력범위에 어떠한 영향을 미치는 지 분석하였다. 강바닥판의 피로응력범위를 산정하기 위해 Abaqus를 사용한 유한요소해석을 사용하여 비교평가하였으며, 용접부에 교축방향 및 교축직각방향의 다축응력이 발생하는 점을 감안하여 Signed Von-Mises 응력을 도입하여 피로 검토에 활용하였다. 강바닥판의 피로응력범위를 산정하기 위해 Abaqus를 사용한 유한요소해석을 사용하여 포장 재료 및 두께에 따라 비교평가하였으며, 용접부에 교축방향 및 교축직각방향의 다축응력이 발생하는 점을 감안하여 Signed Von-Mises 응력을 도입하여 피로 검토에 활용하였다.

Keywords

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