2015年6月上 施工技术 第44卷第11期 CONSTRUCTION TECHNOLOGY D01:10.7672/8gis2015110001 北京园博会主展馆大跨度无柱屋架安装技术 张悦，梅宇 (中铁建工集团有限公司北京分公司，北京100070) [摘要]结合第九届中国（北京）国际园林博览会主展馆钢结构屋面施工，介绍了分区、分段吊装方案，减少吊装跨 度及自重，提高安装效率及经济性；介绍了相邻两福主桁架同时安装、圆心垂直相对的两组桁架对称安装的安装顺 序，有效保障桁架的整体稳定性；通过同步卸载，实现了结构体系的成功转换. 【关键词]钢结构；无柱屋架；预应力拉索；空间测量；安装 [中图分类号]TU758.11 [文献标识码]A [文章编号]1002-8498(2015)11-0001-04 Installation Technology of Large Span Non-column Roof Truss for the Main Exhibition Hall of Beijing International Garden Expo Zhang Yue Mei Yu (Beijing Branch of China Railway Construction Engineering Group Co. Lid.Beijing 100070 China) Abstract:Based on the steel roof truss construction of the main exhibition hall of the 9th China Beijing) International Garden Expo this'paper introduces the hoisting scheme with zoning and segmentation for the steel roof truss which minimize the span and weight of the parts to be hoisted and improves installation efficiency and economic efficiency.This paper introduces how to assemble the adjacent two master truss units simultaneously in a right sequence as well as the two groups of trusses whose circle center is vertically relative to guarantee the stability of the entire truss frame.By synchronous unloading a successful switch on difference structures is also realized. Key words:steel structures;non-column roof truss;prestressed cables;spatial measurement;installation 1工程概况 2钢结构概况及施工难点 第九届中国（北京）国际园林博览会主展馆工2.1钢结构概况 程（见图1），位于北京市丰台区射击场路园博会主 本工程中心主展厅屋面为钢结构，屋面形式为 入口的西南侧，为园博园内核心建筑，建筑面积 金属屋面，钢结构总重约250t...
北京园博会主展馆大跨度无柱屋架安装技术.pdf
