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

Korea Institute for Structural Maintenance Inspection (한국구조물진단유지관리공학회)
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Parameter Study for the Application of Ultra Thin Polymer Concrete Pavement

초박층 폴리머콘크리트 포장적용을 위한 매개변수 해석

  • 윤상일 (삼성물산) ;
  • 장용준 (성균관대학교 글로벌건설엔지니어링학과) ;
  • 최진웅 (성균관대학교 건설환경시스템공학과) ;
  • 홍성남 (성균관대학교 공과대학) ;
  • 박선규 (성균관대학교 건축토목공학)
  • Received : 2015.05.04
  • Accepted : 2015.08.17
  • Published : 2015.11.01
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Abstract

Base on Korean design code, previous design code had not considered the effect of pavement on the orthotropic steel deck, however recent design code (Limit State Design Method, 2012) allowed to consider the effect of pavement on the orthotropic steel deck, and efforts to apply the stiffness of pavement to the deck continue. Meanwhile, research on the effect of ultra thin bridge deck overlay on the orthotropic steel deck is inadequate, previous study was limited in about fatigue stress and performance between pavement layer and the orthotropic steel deck. In this study, according to changing of pavement layer stiffness application, pavement materials, pavement thickness and steel deck thickness, analysis of deflection. In addition to base on this result, consider effectiveness of ultra-thin pavement stiffness application on the orthotropic steel deck.

경제성장 및 물류증가로 인하여 장대교량에 대한 수요가 증가하고 있다. 장지간을 가진 교량 건설을 위해서는 자중 감소가 필수적이며, 이를 위한 노력의 일환으로 초박층 포장재에 대한 연구 및 개발이 진행되고 있다. 국내 설계기준을 살펴보면, 이전 도로교설계기준(2010)에서는 포장이 가지는 강성을 강바닥판에 고려하지 않아 보수적인 설계가 이루어져 왔으나, 최근 개정된 설계기준인 도로교설계기준(2012, 한계상태설계법)에서는 일정한 조건 하 포장이 가지는 강성을 강바닥판에 반영하는 것을 허용하고 있다. 하지만 초박층 교면포장이 강바닥판에 미치는 영향에 대한 연구는 미비한 실정이며, 진행된 연구 또한 거동 특성 및 피로응력에 대한 연구로 한정되어 왔다. 본 연구에서는 포장강성의 반영/미반영, 교면 포장재료, 포장 두께 및 강바닥판 두께를 매개변수로 하여 이에 따른 강바닥판의 처짐과 전단응력의 변화 및 추세를 알아보고 또한 이를 바탕으로 강바닥판에 초박층 교면포장 강성 적용의 효율성을 알아보았다.

Keywords

References

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