On this model basis the first step method is used for optimization of the arch axis coefficient of the arch bridge.
在此模型基础上，使用一阶方法对拱桥的拱轴系数进行优化。
According to measuring the coordinates of each span of long span double arched bridge, the arch axis for every span is determined.
通过测量拱腹各点坐标来确定双曲拱桥每孔的拱轴线。
In connection with its self properties, we make an inquiry into the major parameters, such as ratio of height and span, equation of arch axis, geometry size of section and so on.
针对该桥自身的特点，对拱肋矢跨比，轴线方程，截面的几何尺寸等主要技术参数做了探讨。
Calculation of the arch-axis coefficient is important in arch bridge design.
计算拱轴系数是拱桥设计的重要组成部分。
Calculation of the arch-axis coefficient is important in arch bridge design.
计算拱轴系数是拱桥设计的重要组成部分。
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