异形钢塔拼装测量方法的研究

Research on Assembly Measurement Method of Shaped Steel Tower

以摄乐桥钢塔拼装测量为例,介绍了用一个公共转化点和一个方向点,利用一点一方向结合双边单角后方交会的方法,在钢塔节段上建立一个微型控制网,通过公共转化点将微型控制网点的测量坐标转换为塔上设计坐标,在钢塔节段拼装时,通过三维坐标法测量节段上微型控制网点,指挥吊机将钢塔节段移动到设计位置。

Based on the assembly measurement of steel tower of Shele bridge,we introduced a method that using a common conversion point and a direction point to establish a micro control network on the steel tower segment by means of the one-to-one direction combined with the bilateral single-angle resection.And then,we converted the measurement coordinates of the micro control points into the design coordinates on the tower through the common conversion point.When the steel tower segments were assembled,the micro control points on the segments were measured by the 3D coordinate method,and the crane was commanded to move the steel tower segments to the design position.