아스팔트 궤도용 프리캐스트 콘크리트 패널의 정 · 동적 거동분석

초록

Concrete tracks has been in use for quite a long period of time to overcome the increased maintenance due to higher train speed in order to solve the issues such as lack of manpower and securing stability. However, high construction cost and lack of countermeasures for cracks and settlements are the considered to be the weak points of the concrete track. To remedy such shortcomings, asphalt track has been developed and under operation in Germany and other European countries and the Korean type asphalt track is under development as well. The sleeper which is a critical part of the asphalt track system is currently under development and the structural examination through finite element analysis has been conducted. As a result, 3 types of trial sleepers has been manufactured by following the EN 13250-2/5 standard's static/dynamic bending strength test to evaluate the sleeper performance.