铁路建筑限界曲线加宽通用计算方法研究-《高速铁路技术》

文章信息/Info

Title:: On the Universal Calculation Method for Curve Widening of Railway Structure Gauge

Author(s):: ZHAO Zhengang; Ji’nan Design Institute of China Railway Engineering Consulting Group Co., Ltd., Ji’nan 250022, China

摘要:: 为解决现行铁道行业规范体系中缺少通用的直线-圆曲线过渡段、直线-缓和曲线-圆曲线过渡段建筑限界加宽计算规定的问题，完善铁道行业基础性、底层性标准，明确相关概念和理论，本次研究以图解法生成的建筑限界曲线加宽值数据为基础，绘制了各类过渡段的加宽值曲线图，分析提出了加宽值曲线分段特征点，对加宽值曲线进行了分段。利用MATLAB软件对各分段加宽值数据进行了数值回归分析，归纳提出了适用于不同车辆定距、不同车辆悬长、不同平面曲线半径、不同缓和曲线长度、不同计算里程点的曲线内外侧加宽值通用计算公式。并于与图解法数据进行了对比、验证，极限误差小于2 mm。

Abstract:: There is no universal rule in the current railway standard system for calculating the widening of structure gauge of the transition section from straight track to circular curve track and that from straight track via. transition curve track to circular curve. In order to solve the problem, improve the fundamental and underlying standards of the railway industry and clarify related concepts and theories, this study draws curve charts for the widening values of various transition sections based on the curve widening values of structure gauge generated by graphic method, to analyze and propose the characteristic points of widening value curve segmentation and segment the widening value curve. Furthermore, a numerical regression analysis is made with MATLAB for the widening values of each section, and the universal calculation formulas for the widening value of the inner and outer sides of curve are proposed for different distances between bogie centers, different suspension lengths, different radiuses of horizontal curve, different lengths of transition curve, and different calculating chainages. The results are then compared with and check against those of the graphic method, and the limit error is less than 2 mm.