立交设计中基于匝道的有约束设计与计算方法研究

Constraint Design and Research of Algorithm Based on Ramp in Design of Interchange

本文在匝道设计这一层次上，分析了典型的匝道形式，引入曲线组的概念，选定了匝道主要控制参数。在有约束的情况下建立非线性方程组，并通过采用梯度法求解各控制参数，从而完成立交匝道的设计。

Abstract This paper analyzes the typical forms of the ramp, induces the conception of curve groups and selects the major control parameter of the ramp in the course of ramp design. Nonlinear equation set is founded under the condition of the constraints, and the method of grading is applied to work out every control parameter. Based on the data, the design of ramp can be finished effectively.