摘要
介绍了许平南高速公路孙刘赵互通式立交G、H匝道桥的结构形式及特点,详细介绍了钢箱梁段在架设安装过程中平面位置、高程测控点的设置和测控点X、Y、Z三个方向位置坐标的计算过程,按此计算方法计算的结果进行测控架设,精确地实现了顺利合龙。
The paper introduced the structure model and characteristic of the interconnection crossroad G and H circuit bridge in Xuchang-Pingdingshan-Nanyang Highway.The calculating processes are introduced in detail which include the plane location of the steel box-shaped girder during the fixing,the setting for the altitude control and the location coordinates of the controlling point in X,Y,Z directions.The measure and control span are carried out according to the calculating results and the closure of the bridge is completed successfully in high precision.
出处
《工业建筑》
CSCD
北大核心
2007年第z1期1043-1045,共3页
Industrial Construction
关键词
钢箱梁
单圆双曲线
大地坐标
偏角法
测控
steel box-shaped girder single circle hyperbola geodetic coordinates drift angle measure and control