变截面十字箱形柱的制作装配工艺

Fabrication and Assembly Technology for Cross-shaped Box Column with Variable Cross Section

国家会展中心(天津)项目体量较大,主体部分全部采用钢结构为框架,中央大厅部分屋盖由32个树形结构组成。针对该项目树形结构十字箱形柱的特点及施工难点,详细介绍了十字箱形柱的各部分装配方法、顺序以及注意事项。经实施,所述装配工艺不但加快了施工进度,而且为后续穿插施工提供了工作面,提高了投资效益,对于同类项目的施工具有一定的参考价值。

The project of National Convention and Exhibition Center(Tianjin) is a large project. The main part of the project adopts steel structure as the frame, and the roof of the central hall is composed of 32 tree-shaped structures. According to the characteristics and construction difficulties of the cross-shaped box columns of tree-shaped structure, the assembly method, sequence and matters needing attention of each part of the cross-shaped box columns are introduced in detail. The implementation indicates that the assembly process not only speeds up the construction progress, but also provides a working face for the subsequent alternate construction and improves the investment benefit. It has a certain reference value for the construction of similar projects.