Abstract
PSC 철도교량의 동적거동과 관련하여 차량/궤도/교량의 상호 작용력을 고려한 KTX 전동차의 윤하중을 주행속도 450 km/h 범위까지 해석하고, 전면대차의 4개 차륜의 윤하중 최대 값과 최소 값의 차이와 윤하중비를 일반도상과 교량 상 응답으로 나누어 비교 분석하였다. 차량안정성을 평가하는 기준으로 적용하여 횡압과 탈선계수 그리고 윤중감소율을 적용하여 교량의 주행안정성을 평가하였다. Dynamic analysis of wheel forces of KTX vehicle was carried out to compare the differences of wheel force (D.W.F.) and wheel force ratios (W.F.R.) on the road and bridge up to 450 km/h running speed, considering the interactions among vehicle/rail/bridge. An evaluation method of running safety of vehicles, lateral wheel force, derail factor, and offload factor are adopted for traffic safety of bridges.
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