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Development of Device to Resist Horizontal Displacement of Asphalt Concrete Track

아스팔트콘크리트 궤도용 궤도변위 저항 장치 개발

  • Lee, Seonghyeok (High-speed Railroad System Research Center, Korea Railroad Research Institute) ;
  • Yoon, Wooyong (Department of Civil Engineering, Kyung Hee University) ;
  • Bae, Younghoon (High-speed Railroad System Research Center, Korea Railroad Research Institute)
  • Received : 2016.08.09
  • Accepted : 2016.11.08
  • Published : 2016.12.31

Abstract

Asphalt concrete track (ACT) is a track system connecting wide sleepers and concrete panels on top of an asphalt concrete layer; such a system requires adequate resistance force against various longitudinal and lateral external loads. In this study, a series of experiments were carried out to assess the longitudinal and lateral resistance force of a wide sleeper and concrete panel type ACT. The required shear resistance force of the horizontal displacement restraint device (HDRD) was evaluated. Furthermore, a concrete block type anchor and a steel pipe type anchor were developed as HDRDs. The shear resistance force was decided based on the experimental results of horizontal shear tests for each anchor system. In addition, proper numbers and arrangement design guidelines for the HDRDs were suggested considering the shear resisting capacity and economics for HDRDs applied to ACT.

아스팔트콘크리트 궤도는 아스팔트콘크리트 도상 위에 광폭침목 및 콘크리트 패널이 직결되는 궤도 형식으로서 각종 종 횡방향 외력에 대한 저항력이 요구된다. 따라서 본 논문에서는 광폭침목형 및 콘크리트 패널형 아스팔트콘크리트 궤도에 대해 종 횡방향 저항력 실험을 수행하고 궤도변위 저항 장치에 요구되는 필요 전단 저항력을 산정하였다. 또한 궤도변위 저항 장치로서 콘크리트 블록형 앵커 및 강관형 앵커를 개발하고 각각의 앵커 실험체에 대한 수평전단 실험을 수행하여 앵커 종류별 전단 저항력을 도출하였다. 그리고 아스팔트콘크리트 궤도에 궤도변위 저항 장치 적용 시, 전단 저항 성능 및 경제성 등을 고려하여 궤도변위 저항 장치 적정 개수 및 배치 설계(안)을 제시하였다.

Keywords

References

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