某桥塔测量控制及锚固钢套管精确定位

Control measuring of bridge towers and precise positioning of anchorage steel jackets

为实现施工过程中对桥塔、拉索及主梁的空间位置的准确定位,以某斜拉桥桥塔及锚固套管测设工程实践为例,制定了空间准确定位测量程序,建立了空间位置计算模型,并对测量精度进行了量化分析,结果表明,该方法对于桥塔测量及锚固套管空间定位比较有效。

In order to locate the bridge towers,cables and main beams position accurately in construction process.The measurement practice about towers and anchorage steel jackets of a cable-stayed bridge is taken as an example,a space measurement procedure of accurate positioning is programmed,the calculation model of spatial location is set up and the measuring precision is analyzed.The results show that the method for measuring the bridge towers and anchorage casing spatial orientation is more effective.