DOI QR코드

DOI QR Code

Dynamic Behavior of Direct Fixation Track on Yeongjong Grand Bridge

영종대교 강직결 궤도구조의 동적거동에 관한 연구

  • 최정열 (동양대학교 건설공학과) ;
  • 이규용 (공항철도(주) 기술본부) ;
  • 정지승 (동양대학교 건설공학과) ;
  • 안대희 (동양대학교 건설공학과) ;
  • 김수형 (동양대학교 건설공학과)
  • Received : 2020.02.19
  • Accepted : 2020.08.11
  • Published : 2020.08.31

Abstract

In this study, field measurements were performed to analyze the effects of train types (AREX, AREX Express, KTX, KTX-Sancheon) and train speeds on the dynamic behavior of the direct fixation track structure on Yeongjong grand bridge by bridge type (truss bridge, suspension bridge). Based on field measurement results, the track impact factor and train running stability (coefficient of derailment, Rate of wheel load reduction, lateral displacement of rail head) are compared with domestic and foreign standards and regulations to influence the dynamic behavior of direct fixation track. As a result, the differences in the dynamic behavior of the direct fixation tracks by the type of bridges of Yeongjong bridge are not significant, but it was analyzed that these were more directly affected by the magnitude of the train load. Therefore, it is necessary to establish the reinforcement plan of the direct fixation track structure on Yeongjong grand bridge in consideration of the increase of the track impact factor and dynamic track force.

References

  1. J.Y. Choi, J.S. Chung, J.H. Kim, K.Y. Lee, S.G. Lee, "Evaluation of Behavior of Direct Fixation Track and Track Girder Ends on Yeongjong Grand Bridge", Journal of the Korean Society of Safety, Vol. 31, No.6, pp.45-51, 2016 https://doi.org/10.14346/JKOSOS.2016.31.6.45
  2. J.Y. Choi, Y.G. Park, S.M. Lee, "The Evaluation of Track Impact Factor on the Various Track Type in Urban Transit", Journal of the Korean Society for Railway, Vol.14, No. 3, pp. 248-255, 2011
  3. J.Y. Choi, J.H. Kim, J.S. Chung, S.G. Lee, "Evaluation of Train Running Safety for Direct Fixation Concrete Track on Light Rapid Transit", Journal of the Korean Society of Safety, Vol. 32, No. 5, pp. 41-46, 2017 https://doi.org/10.14346/JKOSOS.2017.32.5.41
  4. J.Y. Choi, H.S. Gong, J.H. Kim, H.S. Kim, J.S. Chung, "An Experimental Study on Causes Evaluation of Rail Corrugation for Concrete track(STEDEF) in Urban Transit", Journal of the Convergence on Culture Technology(JCCT), Vol. 4, No. 4, pp. 413-418, 2018 https://doi.org/10.17703/JCCT.2018.4.4.413
  5. J.Y. Choi, J.S. Chung, S.H. Kim, "Experimental Study on Track-Bridge Interaction for Direct Fixation Track on Long-Span Railway Bridge", Shock Vib, 2019, pp. 1-9, 2019
  6. J.Y. Choi, S.H. Kim, "Impact Evaluation of Track Girder Bearing on Yeongjong Grand Bridge", Appl Sci, Vol. 10, No.1, pp. 68-84, 2019
  7. J.Y. Choi, S.H. Kim, K.Y. Lee, J.S. Chung, "Dynamic Behavior of Track Bridge on Serviced Long-Span Road/Railway Bridge", Appl Sci, Vol. 10, No. 1, pp. 148-159, 2019