关键词: 钢桁架屋顶, 弱相关悬挂, 钢拉杆, 液压同步提升, 逆向拼接

Abstract: The weakly correlated suspension structure, which directly suspends each floor to the roof steel truss through steel tie rods, is a new type of structural system. If its construction is carried out by using the conventional method, there are many hidden dangers. Therefore, this article proposes a steel structure reverse construction technology method based on the construction characteristics of a large-span weakly correlated suspension steel structure system. This article focuses on introducing the construction process methods of hydraulic synchronous overall lifting and reverse splicing for the project, explaining the lifting results of the suspension structure through finite element simulation calculation, and providing support for the construction of weakly correlated suspension steel structures. The technical exploration in this article has certain promoting significance for the development of construction technology for large and complex steel structures in China.

Key words: steel truss roof, weak correlation suspension, steel tie rod, hydraulic synchronous lifting, reverse splicing