경부고속철도 교량 수평력분산장치 성능시험

Relative displacements between decks should be within the allowable limit under horizontal forces in high-speed railway bridges. Longitudinal force transmitters(LFT) have been introduced in high-speed railway bridges for test track. The horizontal forces on the pier supporting the fixed bearings are transmitted to the near piers supporting the sliding bearings by LFT. The performance of LFT was investigated by field test in which the braking and acceleration tests using KTX were conducted in Baebang viaduct. The relative displacements between decks were measured in field test and were compared with the numerical results and the allowable limit.