花瓣造型复杂钢结构方案深化及制作安装技术研究  

Study on Deepening of Steel Structure Scheme with Complex Petal Shape and Fabrication and Installation Techniques

作　　者：李志强 廖万林 LI Zhiqiang;LIAO Wanlin(China Railway Construction Group Fifth Construction Co.,Ltd.,Guangzhou 511400,Guangdong,China)

机构地区：[1]中铁建工集团第五建设有限公司,广东广州511400

出　　处：《建筑施工》2024年第12期1979-1982,共4页Building Construction

基　　金：中铁建工集团有限公司科技计划项目(2021-重点-3)。

摘　　要：对广州白云站花瓣造型复杂钢结构的方案深化、制作安装进行了详细分析,提出了外形优化、柱脚转换节点优化、钢管小半径二次冷弯技术、临时支撑设计及安装等解决措施。实践表明,花瓣异形钢结构的制作安装较为复杂,提出的关键技术解决了结构空间弯曲、悬挑跨度大、单花瓣稳定性差、外形尺寸大、质量大、焊缝多、截面种类多、操作空间有限等施工难题,并在保证安全的同时,减少了钢构的钢量,实现现场快速建造,可为类似工程提供参考。The deepening of the scheme,fabrication,and installation of the complex petal-shaped steel structure at Guangzhou Baiyun Railway Station are analyzed in detail,with solutions proposed for shape optimization,column base transfer joint optimization,secondary cold bending technique for small-radius steel pipes,and the design and installation of temporary supports.Practice demonstrates that the production and installation of the petal-shaped steel structure are highly complex.The proposed key techniques address construction challenges such as spatial bending,large cantilever spans,poor stability of individual petals,large dimensions,heavy weight,numerous welds,multiple section types,and limited operation space.These techniques reduce steel usage while ensuring safety and enabling rapid on-site construction,providing a reference for similar projects.

关 键 词：花瓣造型 异形钢结构柱 柱脚转换节点 二次冷弯 分块制造 临时支撑 

分 类 号：TU758[建筑科学—建筑技术科学]