摘要
通过对我国重载编组列车紧急制动条件下的仿真计算,提出了与桥梁长度相关的制动力率曲线,为我国铁路桥梁制动力荷载的规定提供了理论依据.在此基础上,根据日前所作的铁路简支梁桥制动力有效系数的研究,进一步得出了建议我国采用的铁路简支梁桥的有效制动力率曲线.
By simulative calculation of a heavy haul in an urgent braking operation, a curve for braking force ratio is developed for each of different lengths of the bridge. It can provide theoretical basis for establishing braking loads of trains on bridge in our country. On the ground of this, and according to recent studies of effective coefficient of braking force on railroad simple_supported bridge, the curve for effective braking force ratio of railway simple_supported bridge in our country is proposed.
出处
《北方交通大学学报》
CSCD
北大核心
2003年第1期63-67,共5页
Journal of Northern Jiaotong University
基金
国家自然科学基金资助项目(50178004)
关键词
铁路桥梁
制动力率
有效系数
曲线
railroad bridge
braking force ratio
effective coefficient
curve
