佛山家居博览城伞形索网结构提升关键技术

Lifting Technology for Umbrella-type Cable Net Structure in Foshan Furniture Expo Mall

佛山家居博览城伞形屋盖是一种新颖的索网结构形式,伞形钢屋盖结构安装的主要难点在于中心桅杆安装、悬索安装与张拉、钢屋架桁架组安装、垂直度控制、节点拼装等。针对该种结构的施工特点,分析了斜向提升的关键施工技术,给出了同步控制精度的确定方法,介绍了施工过程中的同步控制工艺和监测技术,通过仿真计算给出了各个状态的位形和拉索内力,为工装设计和张拉设备选取依据。

As a new form of structure, its major difficulties of installation lie in the erections of central mast, suspended cable, steel roof trusses and the verticality control as well as joint assembly for the umbrella-type cable net structure in Foshan Furniture Expo Mall. According to the construction characteristics of this kind of structure, the key construction for inclined lifting are analyzed, the determination method for synchronous control precision is given, and the synchronous control technology and monitoring technology during construction are introduced. The shape and internal force of each state are given through simulation to provide the basic data for equipment design and tensioning equipment.