실운행열차를 이용한 철도교의 재하시험 및 내하력 산정방법(Ⅱ)

초록

In contary to roadway bridges, in the railway bridges, the loading case is much simpler in load tests because the train moves only on the rails within the designated location. But the gridge vibration can be caused from many sources include vehicle characteristic, rail system, bridge characteristics, bridge span and girder arrangements. In the existing load carrying evaluation methods, rail characteristic is not considered and the cant or centrifugal force effects cannot be considered. As a results the accuracy of the load evaluation is decreased and various characteristics of the train cannot be considered. In this study, measured axle weights of the in-service train were applied in the load carrying capacity evaluation to increase the accuracy of the evaluation. Based on the measured axle weights, the reasonable design loads for load carrying capacity calculation can be found and these data can be applied bridge and rail fatigue life evaluations also.