Research and application of key technology in construction of steel structure of super-high and large-span heavy duty globular corridor

跨度(工程) 桁架 钥匙(锁) 组分(热力学) 工程类 机械加工 设计技术 计算机科学 机械工程 结构工程 系统工程 物理 计算机安全 热力学
作者
Lu Tong,Shuai Wang,Aixun Wang,Lingen Luo,Wenxiang Li,Mingzhao Wang
标识
DOI:10.1109/ichceswidr54323.2021.9656250
摘要

As the appearance design of high-rise curved buildings becomes more and more complicated, the traditional component fabrication and installation technology and the in-situ assembly technology in high altitude are gradually unable to meet the engineering requirements. Based on the project of Intercontinental Hotel in Wuhan International Expo Center, this paper puts forward the steel structure construction technology of super-high and large-span heavy-duty spherical corridor. The key technology mainly consists of four parts: (1) the technology deepens the design of corridor and combines the application of a variety of software to solve the problems of many kinds of components, large quantity and difficult positioning. Through structural design and deepening design of temporary measures, the bearing capacity of temporary measures can be guaranteed to meet the construction requirements and accuracy; (2) special-shaped component fabrication technology. Numerical control machining and computer simulation assisted pre-assembly, which are very intuitive to check the production quality of special-shaped components, are applied to improve accuracy and reduce costs; (3) low level assembly technology. Unsupported assembly method is adopted to solve the problem of insufficient bearing capacity of the site. The reticulated shell components are divided into units first and then into blocks for assembly, which is timesaving, efficient and highly accurate. (4) the overall lifting technology, which counterweights the rear anchor points and ties the front anchor points to the cable and then uses the triangle truss as the lifting frame body, can effectively solve the problems of fewer lifting points and large lifting force of a single point. This technology has important reference significance to the construction of heavy - duty connecting corridor.

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