预应力空间网格结构施工中的支撑可靠性研究

Research of support reliability in prestressed space grid structure construction

介绍了某展示大厅采用的预应力空间网格结构体系,对施工过程中网壳出现的"弯杆"、挠度过大等问题进行分析,提出相应的解决方案,计算了不同沉降位移情况下的弯杆数目,提出支撑沉降的具体控制数值以小于20 mm为宜。

The paper introduces the prestressed space grid structure of some displaying hall, analyzes the ＂curved bar＂ and excessive deflection of the reticulated shell in the construction process, points out the solution schemes, calculates the numbers of the curved bars in different settle- ment displacement, and points out the control value of the support settlement should be less than 20 mm.