摘要
高塔曲线垂直度控制一直是高塔施工测量的一件繁琐的工作。以涪江五桥曲线索塔施工为例,介绍大跨度桥梁索塔施工的测量方法,及激光垂准仪投点法和全站仪垂直测距法的技术特点及操作步骤,并对曲线平面位置及高程传递精度进行分析。涪江五桥曲线索塔施工测量结果,验证了上述测量方法的精度。
The control of high tower curve verticality has always been a tedious work in high tower construction and measurement. Based on the oxample of the curve cable tower construction of Fujiang No. 5 bridge the measurement method for cable tower construction of large span bridge, the technical features and operation procedures of laser verticality machine throwing - dot method and total station vertical ranging method were introduced, and the curve plane position and high transmission accuracy were analyzed. The accuracy of abovementioned measurement methods was verified by the construction measurement results of curved cable tower of Fujiang No. 5 bridge.
出处
《工程建设》
2017年第1期49-53,共5页
Engineering Construction
关键词
斜拉桥
高塔
垂直度
控制
激光垂准仪
cable -stayed bridge
high tower
verticality
control
laser verticality machine
