普通列车和CRH_2型动车组制动力荷载分析

Argumentation about Braking Force of High-Speed CRH_2 Train and Common Train

为研究CRH2型动车组制动力和普通重载列车制动力对桥梁结构的影响差异,依据动车组制动减速度特性曲线,计算整车制动力时程,为桥梁结构承受动车组制动力的动力分析研究打下基础。通过与重载列车制动力时程的对比,表明动车组整车制动力数值比重载列车制动力小很多,且停车前保持平稳,不具有普通重载列车的冲击特性。

For studying bridge’s influencing difference under braking force of high-speed CRH2train and common heavy train,according to braking deceleration characteristic curve of high-speed train,the whole vehicle braking force time-history was studied.Dynamic analysis was prepared for bridge under braking force of high-speed train.By contrast with braking force time-history of common heavy train,it indicates that the whole vehicle braking force of high-speed CRH2train is smaller than the braking force of heavy train.The braking force of high-speed CRH2doesn’t possess common heavy train’s impactive character, and keeps stably before stopping.