Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Investigation of Resonance Occurrence Conditions by Dynamic Interaction Analysis between Arch bridge and KTX Trains

타이드 아치교와 KTX열차의 동적상호작용을 고려한 공진현상 분석

  • Jang, Jung-Hwan (School of Civil and Architecture Engineering, Sungkyunkwan University) ;
  • Min, Dong-Ju (School of Civil and Architecture Engineering, Sungkyunkwan University) ;
  • Kim, Moon-Young (School of Civil and Architecture Engineering, Sungkyunkwan University)
  • 장정환 (성균관대학교 건축토목공학부) ;
  • 민동주 (성균관대학교 건축토목공학부) ;
  • 김문영 (성균관대학교 건축토목공학부)
  • Received : 2015.01.13
  • Accepted : 2015.12.08
  • Published : 2016.03.01
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Abstract

Resonance occurrence conditions are explored by performing dynamic interaction analysis of arch bridge and KTX trains. The target bridge is a 3D tied-arch bridge having span length of 120m. KTX trains consist of two power carriages, two power and passenger carriages and sixteen passenger carriages. When KTX trains run on the target bridge with the uniform speed of 100 to 500km/h, the dynamic responses of the bridge induced by moving trains are obtained from railway arch bridge-train interaction analysis. Two resonance conditions are presented and whether the resonance phenomena occur or not at the suspicious resonance velocities is rigorously investigated through bridge deflections and accelerations and their FFT analysis.

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References

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