KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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Structural Performance of Precast Concrete Arch with Reinforced Joint

보강된 이음부를 가진 조립식 프리캐스트 콘크리트 아치의 구조성능

  • 정철헌 (단국대학교 토목환경공학과) ;
  • 주상훈 (단국대학교 토목환경공학과) ;
  • 최동찬 (금호산업(주) 건설기술연구소) ;
  • 이종윤 (금호산업(주) 건설기술연구소)
  • Received : 2013.05.10
  • Accepted : 2013.10.01
  • Published : 2014.02.01
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Abstract

The masonry stone arch bridge, due to its superior durability and aesthetics, has been one of the oldest and popular types of short span bridges. In Europe, this type of bridges have been continuously constructed, and numerous related researches have been conducted until recently. However, there are few construction cases in Korea since the economic efficiency and the construction effectiveness is not contentable. Therefore, this study proposed the reinforced joint to improve structural performance of the conventional arch systems which is proposed by previous researchers. The structural performance of the proposed reinforced joint, which consists of the transverse loop joint and the longitudinal reinforcement, is validated by experimental test of an arch bridge which is constructed using precast concrete segments. Based on this results of the experimental test, it is concluded that the strength of arch bridges can be enhanced by applying the proposed reinforced joints since the reinforced joint restrains hinge behavior and relative displacement between segments with a little reinforcement.

내구성과 미관성이 우수한 석조 아치교량은 단경간 교량으로서 가장 오래되고 경험적으로 시공되었던 구조물로서 유럽에서는 지금까지도 현장에 시공되고 있으며, 이에 대한 활발한 연구가 진행되고 있다. 그러나 국내에서는 시공법의 비효율성과 비경제성으로 인해 교량 목적으로 시공되는 경우는 거의 없는 상태이다. 따라서 본 연구에서는 기존 연구자들이 제안한 시스템에서 구조성능의 향상이 가능한 보강된 이음부의 접합방법을 제안하였다. 제안된 이음부는 횡방향 루프이음과 종방향 보강근을 적용한 형식으로 프리캐스트 콘크리트 블록으로 이루어진 아치에 적용하여 실험을 통해서 구조적 성능을 평가하였다. 실험결과, 보강된 이음부는 소량의 보강근으로도 블록 상호 간의 상대변위와 힌지거동을 억제시켜 기존의 형식보다 충분한 내력을 향상시킬 수 있을 것으로 판단된다.

Keywords

References

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Cited by

  1. Full-Scale Test on Precast Concrete Arch Bridge with Reinforced Joint and Backfill vol.34, pp.2, 2014, https://doi.org/10.12652/Ksce.2014.34.2.0389
  2. Strength Evaluation on Sectional Members of Prefabricated Precast Concrete Arch with Reinforced Joint vol.34, pp.5, 2014, https://doi.org/10.12652/Ksce.2014.34.5.1363
  3. Evaluation of Structural Behavior of Connections in Precast Arch Structures vol.36, pp.5, 2016, https://doi.org/10.12652/Ksce.2016.36.5.0747