3D Bridge-Vehicle interaction Analysis of Cable-Supported Bridges Using Mode Superposition Method

모드중첩법을 이용한 케이블지지교량의 3차원 교량-차량 상호작용 해석

  • 이준석 (성균관대학교 토목환경공학과) ;
  • 임명훈 ((주)제일엔지니어링) ;
  • 김문영 (성균관대학교 토목환경공학과)
  • Published : 2005.04.01


For bridge-vehicle interaction analysis of cable-supported brides, the superposition method is applied based on the results of 3-dimensional free vibration analysis using General-purpose FEM Software. This study firstly performs the eigenvalue analysis for the free vertical and the torsional vibration of bridges using FEM analysis. Next the equations of motion considering interaction between bridges and vehicles/train are derived from mode superposition method. And then dynamic analysis is performed using the Newmark numericial method. Finally through the numerical examples, the dynamic responses of cable-supported bridges by this study are presented and discussed.