Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
권호 표지
DOI QR코드

DOI QR Code

Study on Dynamic Characteristics of Structure Approaches by Train Moving Loads

열차이동하중 작용시 구조물 접속부의 동적 거동특성 연구

  • Eum, Ki Young (High-Speed Railroad Infrastructure Research Team, Korea Railroad Research Institute) ;
  • Kim, Young Ha (Chung Cheong Headquarter, Korea Rail Network Authority) ;
  • Kim, Jae Wang (High-Speed Railroad Infrastructure Research Team, Korea Railroad Research Institute)
  • Received : 2012.11.15
  • Accepted : 2013.07.02
  • Published : 2013.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

This paper systematically analyzes the dynamic effects of structure approaches which are expected to have direct effects on train loads - according to the train's acceleration as the area under consideration is located in a section where acceleration of high speed railway vehicles and the train's operating speed happens. In addition, through an examination of the dynamic train loads, dynamic behavioral characteristics of embedded structures and structure approaches were analyzed and a numerical analysis has been carried out in order to evaluate the performance of track subgrade and the safety of the structure. As a result, we reach the conclusion that the dynamic effects by train loads is low, but somewhat high vertical acceleration occurs.

본 논문은 구조물이 위치한 구간에 대하여 향후 최고시험속도 430km/h 차세대 고속철도 차량 및 고속열차 운영속도의 증속이 이루어지는 구간인 열차하중의 직접적인 영향이 예상되는 구조물 접속부를 대상으로 열차 증속에 따른 구조물의 동적영향을 시스템적으로 거동을 분석하였다. 그리고 열차하중에 의한 동적영향 검토를 수행하여 지중구조물과 인접 토공부의 거동특성을 분석하고 궤도노반의 성능평가 분석, 열차이동하중의 동적영향으로 인한 구조물의 안정성을 평가하기 위해 수치해석을 수행하였다. 분석결과 열차하중에 따른 동적영향은 적지만 연직가속도가 다소 크게 나타나는 것으로 분석되었다.

Keywords

References

  1. UIC (2008) UIC(International Union of Railways) Railway Statistics.
  2. I.W. Lee (2011) Dynamic response characteristics for two-layered trackbed structure by train load, Journal of the Korean Society for Railway, 14(2), pp. 160-166. https://doi.org/10.7782/JKSR.2011.14.2.160
  3. D.S. Kim, K.D. Shin, S.H. Na, K.H. Kim (2011) Study on the dynamic response characteristics of the concrete track and roadbed during the speed up tests of Gyungbu high_speed rail, Proceedings of the Korean Society for Railway Conference, pp. 1615-1623.
  4. C. Madsuhs, A.M. Kaynia (2000) High-speed Railway Lines on soft ground : dynamic behavior at critical train speed, Journal of Sound and Vibration, 231, pp. 689-701. https://doi.org/10.1006/jsvi.1999.2647
  5. C.K. Hong, S.C. Yang, Y.T. Kim (2007) The dynamic interactive analysis of track and train system with roadbed displacement in subgrade concrete slabtrack, Proceedings of the Korean Society for Railway Conference, pp. 11-18.
  6. S.J. Cho, J.Y. Choi, D.S. Chun, M.C. Kim et al. (2007) An experimental study on dynamic behavior evaluation of transitional track, Proceedings of the Korean Society for Railway Conference, pp. 1373-1379.
  7. MIDAS Information Technology Co., Ltd. (2007) MIDAS GTS, User's Manual.
  8. Korea Rail Network Authority (2008) Soil investigation report of honam high-speed railway .
  9. Japan Railway Track Consultants (2009) Standard of Japan track system performance evaluation and case studies, Japan Railway Track Consultants.
  10. DE-Consult (1999) On-line tests, Korea Railroad Research Institute.
  11. Korea Rail Network Authority (2010) Facility verification testing services of step 2 KTX Daegu-Busan section, Korea Rail Network Authority.
  12. Korea Rail Network Authority (2011) design manual of honam high speed railway, Korea Rail Network Authority.
  13. ERRI D214 (1999) Rail bridge for speeds > 200km/h European rail research Institute.

Cited by

  1. Analytical Study of the Vibration Attenuation with respect to Trackbed Systems vol.7, pp.2, 2014, https://doi.org/10.7782/IJR.2014.7.2.40
  2. A Resonance Stability of Temporary Bridge Bearing Method Passing Underneath Existing Subway Structure vol.15, pp.2, 2015, https://doi.org/10.9798/KOSHAM.2015.15.2.259