CAJ | 학술논문

分析了某铁路桥墩在小车撞击下的碰撞力情况，研究发现可以用小车正撞刚性墙模拟小车正撞桥墩，简化有限元计算。同时，通过模拟不同速度小车正撞刚性墙，考察碰撞力随撞击速度的变化情况，拟合在不同平均处理方法下的碰撞力与车速的经验公式，该公式可以用于铁路桥墩小车碰撞力估计。
분석료모철로교돈재소차당격하적팽당력정황，연구발현가이용소차정당강성장모의소차정당교돈，간화유한원계산。동시，통과모의불동속도소차정당강성장，고찰팽당력수당격속도적변화정황，의합재불동평균처리방법하적팽당력여차속적경험공식，해공식가이용우철로교돈소차팽당력고계。
In the present paper ,the collision force between a railway bridge pier and car are investigate . It was found that the difference using bridge pier and rigid wall is very small .Hence ,the collision car with rigid wall could be used to simulate the collision car with the bridge pier ,which will save compu‐tation time .Three empirical formulas are obtained by fitting results with different speed of impact car ,w hich can be used to predict the collision force .