CCTV主楼异形悬臂空间合龙精密测量技术  

Precision Measuring Construction Technology on Cantilever Structure Connection in Space in the CCTV Main Building

作　　者：彭明祥[1] 张琨 肖南[1] 杨晓毅[1] 余渊[1] 

机构地区：[1]中国建筑股份有限公司,北京100037 [2]中建三局建设工程股份有限公司,湖北武汉430064

出　　处：《施工技术》2010年第7期19-23,共5页Construction Technology

基　　金：建筑工程设计与施工过程信息化关键技术研究和应用(2007BAF23B04)

摘　　要：CCTV主楼包括2座双向倾斜塔楼,L形悬臂结构从两塔楼标高162.2m处外挑67.165m和75.165m延伸至空间合龙,悬挑距离长。精密测量技术是悬臂结构能否顺利合龙的关键。从复杂高层建筑空间悬臂结构施工测量方案设计、精度分析、控制测量、悬臂合龙动态测量等一系列完整的测量流程进行说明,在施工过程中同时运用了精密GPS测量、自动测量机器人等多项新技术,为工程悬臂构件就位和合龙提供测绘技术支撑和保障。The CCTV main building has two bidirectional inclined tower building,L-shape cantilever structure extends separately 67.165m and 75.165m to connection in space from elevation 162.2m of the two towers.The on-site precision measuring technique is the emphasis and difficulty of the cantilever structure connection.In this article,the authors show a series of measuring process including measuring scheme design,precision analysis,location control measuring and cantilever structure connection measuring.During construction,some new techniques of GPS and automatic measuring robots are adopted to assure the location and connection for the cantilever structure.

关 键 词：CCTV主楼 悬臂结构 测量 合龙 定位 

分 类 号：TU745.1[建筑科学—建筑技术科学] TU974