112m提篮拱通用拱肋定位计算优化研究

Optimization Research on Positioning Calculation of Arch Rib of 112 m Basket Handle Arch

传统的拱肋定位计算复杂且效率较低,无法满足现场及时操作的需要。运用Matlab软件对拱肋原始函数分析,在此基础上,结合拱肋控定位控制点与函数的几何关系,推导出计算公式并进行了优化。经金温扩改工程上一座提篮拱的实践,验证该算法准确精度可靠,对其他同类型的钢管拱定位优化,具有一定的参考和指导意义。

Traditional arch rib positioning calculation is complex and of low efficiency and can＇ t meet the need of timely field operation. Based on the analysis on the arch rib original function through Matlab, according to the geometrical rela- tionship between arch rib position control point and the function, the calculation formula is deduced and optimized. It is proved through the practical case of a bracket handle arch of Jinhua-Wenzhou Railway expansion project that the algorithm is accurate and precise and has a certain reference and guidance significance for the position and optimization of other types of steel tube arches.