大跨度钢结构BIM综合测量技术

Comprehensive Measurement Technology of Large Span Steel Structure

本文以合肥滨湖国际会展中心的综合展馆、标准展馆为例,探讨了大跨度空间桁架钢结构工程中的测量问题,以实现从场外控制点的引测建立场内一级控制网、地面立式拼装测量、地面卧式拼装测量、高空支撑拼装胎架测量、卸载测量、整榀吊装测量以及高质量完成测量任务为目标,达到了对测量过程中的大型展馆大跨度桁架、倒三角抗风柱及弧形悬挑的施工测量技术精度。

Taking the example of Comprehensive Hall and Standard Hall of Hefei Lakeside International Convention and Exhibition Center,the objective of this paper is to establish the first level control network in the field,the ground vertical assembling survey,the ground horizontal assembling survey,the high-altitude support assembling tire rack survey,the unloading survey,the whole hoisting survey and the high-quality completing survey task,and the construction survey technology of large Span Truss,inverted triangle wind column and Arc Cantilever for large exhibition hall is discussed.It can be used as reference in sliding construction or whole lifting construction of similar large-span high-altitude steel structure.