快速路圆曲线超高与横向力系数分配方法研究

摘要:

在道路平曲线设计中,超高与横向力共同作用抵消车辆在曲线行驶中产生的离心力,保证行车安全和舒适。本文通过分析国内现行城市道路与公路路线设计规范在超高设计方面的相关要求,借鉴美国AASHTO超高分配计算方法,以城市快速路为例,提出了不同圆曲线半径建议超高值。

Abstract:

The side friction and superelevation work together to sustain the centripetal force for the vehicles driving on curves, ensuring driving safely and comfortably. This paper analyzes the relevant requirements of the design specifications in China, uses the method of distributing superelevation and side friction from AASHTO Greenbook, to calculate the minimum radii for design superelevation rates of expressways.