2016年2月上 施工技术 第45卷第3期 CONSTRUCTION TECHNOLOGY D0I:10.7672/sgjs2016030001 空间仿生ETFE薄壳结构位形控制关键技术 娄峰，赵文雁，陈志江，陈君 (浙江精工钢结构集团有限公司，浙江绍兴312030) [摘要]ETFE膜材设计收缩率小、强度低，对钢结构施工有更高的安装精度要求.以广州宏城广场天幕的建造过 程为背景，提出了单层网壳分块安装方法，介绍了三维坐标预调整技术，卸载全过程变形监测和大面积ETFE膜安 装等整套空间仿生ETFE薄壳结构的施工技术，解决了ETFE膜边界精度控制要求高的难题. [关键词]钢结构；薄壳结构；膜结构；位形控制；安装；数值模拟；监测 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2016)03-0001-04 Key Techniques for Position and Shape Control of Spatial Bionic ETFE Shell Structures Lou Feng Zhao Wenyan Chen Zhijiang Chen Jun (Zhejiang Jinggong Steel Building Group Co. Lid.Shaoxing Zhejiang 312030 China) Abstract:ETFE membrane material has low design shrinkage rate and low strength which is strict to the steel structure installation precision.Taking the velarium building process of Hongcheng Plaza of Guangzhou as an example a series of spatial bionic ETFE shell structures construction techniques such as single-layer reticulated shell block installation method three-dimensional coordinates of the pre-adjustment technology the unloading deformation monitoring and large area of ETFE membrane installation are introduced.The difficulty of high precision request for the ETFE membrane boundary precision is solved. Key words:steel structures;shell structures;membrane structures;position and shape control; installation;numerical analysis;monitoring 1工程概况 面层网壳 面层网壳 广州宏城广场钢结构天幕工程位于广州市中 ETFE透明薄膜 轴线上.工程总建筑面积约110000m2 主要由地下 落客棚 底层网壳 商场及停车库、裙楼商场、下沉花园、顶层花园及相 关配套工程组成. 天幕系统位于建筑物的屋面层，平面上分为 落客棚 底层网壳 东、西2个独立单体，外形酷似2条嬉水的鱼.系统 由钢...
空间仿生ETFE薄壳结构位形控制关键技术.pdf
