制挠力在长钢轨及有碴桥中的传播

本文首先回顾了制挠力在长轨及桥梁中传播的计算方法，并指出其中某些方法中存在的优缺点。然后根据A.5.ARYA和S.R。AGRAWAL导出的乎衡和变形方程，时计算方法作了改进。计算结果表明，如果考虑墩顶位移，作用于桥墩上的制挠力将大大减小。这对设计桥上无缝线路及桥墩都具有重要意义。 

Dispersion of Braking and Bending Forces in CWR and Ballasted Bridge

This paper starts with a brief review of the dispersion of braking and bending forces in CWR and ballasted bridge, and points out the advandage and disadvantage for different methods of analysis. Using the equations of equilibrium given by A. S. Arya and S. R. Agrawal, an improved method of analysis is presented, in which variable track resistence is used and the boundary conditions are rewritten to appropriate the construction of the bridge supports. Calculated results indicate that the horizontal longitudinal forces exerted to the piers will be considerably reduced if the displace- ments of the tops of piers are taken into consideration, and this is of great significance to the design of the CWR and piers.