Transient Response Analysis of a Comb Type Bridge Expansion Joint due to Travelling Wheel Impact

차륜주행충격에 의한 빗살형 교량 신축이음장치 구조물의 과도진동해석

In this paper we derive relations which describe the geometry and kinematics of contact between the travelling wheel and stepped comb joint. From which we can obtain the impulse, impulsive force and its time interval due to travelling wheel impact which can not be taken from Carter's model or Newland and Cassidy's. The calculated transient responses of the comb joint structure to travelling wheel impact reveals that the proposed wheel contact model and Carter's give very similar results but Newland Cassidy's model make a quite different results from the others.