궤도형식에 따른 철도교량의 거동분석을 위한 실험적 연구

초록

The railway bridge is constructed to the track structure upper bridge deck, and it tends to be repeatedly applied to regular frequency loads due to fixed train axles. According to these properties, static and dynamic behavior of railway Bridge are influenced by various spans, bridges, and track structures. This study analyzed static and dynamic behavior of bridge with specimens which were applied the real track structure. The static behavior of bridge applying to the track structure analyzed deflection, stress, and the neutral axis of bridge. The dynamic behavior of bridge applying to the track structure performed parametric studies such as track structures, a large amount of load, and amplitude of load. Via this laboratory test, this study confirmed that stiffness of bridge increased by applying track to the bridge, and there were no changes of damping ratio track structures. Also, change of amplitude load was shown that it made dynamic response increasing when resonance was occurred.