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以马鞍山长江公路大桥中塔柱钢索塔安装施工为例,介绍大跨度桥梁钢索塔安装施工的测量方法,重点讨论激光铅垂仪投点法和全站仪垂直测距法的技术特点及操作步骤,并对钢索塔平面位置及高程传递精度进行分析。最后对马鞍山长江公路大桥中塔柱钢索塔施工测量结果进行分析,验证了上述测量方法的精度。
Taking the installation and construction of tower pylon in Ma’anshan Changjiang River Highway Bridge as an example, the measurement method of installation and construction of long - span bridge steel pylon is introduced, and the technical characteristics of laser plumbing method and total station vertical ranging method are discussed. Operation steps, and analysis of the position of the cable pylon and elevation transfer accuracy. Finally, the measurement results of tower pylon steel tower construction in the Ma’anshan Yangtze River Highway Bridge are verified, and the accuracy of the above measurement method is verified.