南京大胜关长江大桥六跨连续钢桁拱梁施工控制测量  

Construction Control Survey of Six-Span Continuous Steel Truss Arch Girder of Nanjing Dashengguan Changjiang River Bridge

作　　者：崔巍[1] 杨涛[1] 

机构地区：[1]中铁大桥局集团第四工程有限公司,江苏南京210031

出　　处：《桥梁建设》2010年第1期5-7,16,共4页Bridge Construction

摘　　要：南京大胜关长江大桥六跨连续钢桁拱梁施工测量采取钢梁施工前对主桥控制网进行复测和加密,对六跨连续钢桁拱梁范围内墩、台进行贯通测量;施工监测阶段建立钢梁监测局部控制网;桥面系施工时建立桥面控制导线的方法,满足钢梁施工各阶段控制测量的需要。既保证主桥钢梁中心线与南京大胜关长江大桥桥梁中心线、京沪高速铁路线路中心线协调一致,又保证钢梁各个节间监测数据的测量精度,满足钢梁安装线形及合龙口线形调整的需要。The construction control survey of the six-span continuous steel truss arch girder of Nanjing Dashengguan Changjiang River Bridge proceeded in a way of re-checking and securing the control network for the main bridge first before the construction of the girder, carrying out the connecting survey for all the piers and abutments within the range of the girder, establishing the local control network for the girder at the construction monitoring and control stage and the deck control alignments before the floor system of the bridge was constructed and also satisfied the needs of the construction control survey at the different construction stages. The way of the control surve, y mentioned above not only ensured that the center line of the girder of the main bridge is kept agreeable with the center lines of the Nanjing Dashengguan Changjiang River Bridge and the Beijing-Shanghai High-Speed Railway Line, but also ensured the survey precision of the observed data of each panel of the girder and the needs of adjustment of the geometric shapes for the girder installation and closure.

关 键 词：钢桁拱 工程测量 控制测量 测量方法 精度 

分 类 号：U442.4[建筑科学—桥梁与隧道工程]