梦幻城项目是一座集高档酒店及娱乐功能于一体的综合性商用大楼,建筑物整体采用剪力墙核心筒-空间网架组合结构,由两个混凝土浇筑的圆柱形中心塔楼,与暴露的网状结构外骨骼扭曲连接在一起。沿着建筑的高度方向,有三个自由式的弧形开孔,在开孔处两个塔楼的连接通过钢结构桁架桥实现。这种外骨骼的结构形式增强了设计的活力,外部结构优化了内部布局和建筑整体,但对钢结构工程建造提出了挑战。本文重点剖析了钢结构工程建造中主要构件的制作难点,并介绍了施工过程中的主要工艺措施。 Dream City Project is a comprehensive commercial building integrating high-class hotel and entertainment functions. The whole building adopts the combination of a shear wall core tube and a space grid structure, and consists of two concrete-filled cylindrical center towers and an exposed net Exoskeleton-like structure twisted together. Along the height of the building, there are three free-form arcuate openings where the two towers are connected by a steel truss bridge. This exoskeleton structure enhances the design vitality, the external structure to optimize the internal layout and building the whole, but the steel structure construction challenges. This article focuses on the analysis of the main components of the steel structure construction difficulties, and introduces the main process in the construction process measures.