Author(s)

Y. Sato

Abstract

This study theoretically evaluates the effect of intermediate beam in track on train induced ground vibration. It notices the force acting from track to elevated structures and the input to the ground vibration. Models of track on elevated structure ant of that directly supported on the ground are considered. The following results are obtained: (1) The method to evaluate the effect of track rigidity is given; (2) The effect of rail rigidity is successfully compared with measurements; (3) The effect of rigidity of the intermediate beam and its supporting spring is clearly given; (4) The acceleration of deck slab in the elevated structure as band-pass level including human sensitivity is compared in regard to ladder and ballasted tracks. 1 Introduction The study aims at clarifying the effect of the intermediate beam in tracks on the elevated structure and on groun

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