transition curve length

The paper gives the calculation formula of the steel box beam rib plate, side line length and coordinate of transition curve sections combined with construction practice.

本文结合施工实践，推导给出了缓和曲线段钢箱梁肋板、边线长度和坐标的计算公式，用于缓和曲线钢箱梁和其它结构梁的放样计算。

The paper discussed the main factors of influencing transition curve, introduced the choice and application of transition curve parameter and length.

阐述了决定缓和曲线的主要因素，指出了缓和曲线（参数、长度）的选取和实际应用。

The direct solution formula for the curve length of a theoretical control point on the transition curve is proposed, with the solution of high order equation being avoided.

导出了隧道控制测量中缓和曲线理论投点曲线长的直接求解公式。