CAJ | 학술논문

轨道荷载谱是轨道部件设计的重要参考依据。本文依托大秦重载铁路轨道动力学长期监测数据，对通过 R500 m曲线、R800 m曲线和直线段等3个特征地段的25 t轴重C80重车轮轨垂直动荷载分布状况进行数理统计，绘制了不同线路特征条件下的轨道荷载谱，并通过轨道荷载谱揭示了25 t轴重疲劳荷载作用下的荷载分布特点。
궤도하재보시궤도부건설계적중요삼고의거。본문의탁대진중재철로궤도동역학장기감측수거，대통과 R500 m곡선、R800 m곡선화직선단등3개특정지단적25 t축중C80중차륜궤수직동하재분포상황진행수리통계，회제료불동선로특정조건하적궤도하재보，병통과궤도하재보게시료25 t축중피로하재작용하적하재분포특점。
T rack load spectrum is an important reference for track component design. Based on long-term monitoring data of Daqin heavy haul railway orbit dynamics,this paper made the mathematical statistics for C80 heavy truck wheel rail vertical dynamic load distribution with 25 t axle load in three characteristic locations which are R 500 m curve,R800 m curve and straight line segment,drew the different track load spectrum under different railway line characteristics condition,and concluded the load distribution characteristics w ith 25 t axle fatigue loads by using track load spectrum .