112m提篮拱通用拱肋定位计算优化研究

摘要

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.%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。