STUDY ON PREDICTION METHOD FOR VIBRATION PROPAGATION TO STRUCTURES BY SUBWAY RAILCARS RUNNING

This paper proposes prediction method for vibration propagation to structures by subway railcars running. Applicability of previously method by dynamic analysis using voxel finite element method is confirmed. Simulation is carried out for evaluation of vibration by using three-dimensional soil-structure model. Assuming that a pulse occurs at the wheel position of cars, excitation force is made and set to node of train running position in consideration of a time gap for train speed. Good agreement between records and simulation results is shown and effectiveness of proposal method is validated.