[提要]  在网壳中施加预应力，可有效地调节各杆件及球节点内力，减小结构变形，同时可平衡网壳在支座处产生的水平推力。结合一工程实践，介绍了预应力筋在网壳中的布置形式及相关的预应力设计施工技术。
[关键词]  网壳  球节点  预应力  支座

The prestressing in the reticulated shell can effectively regulate the internal stress of the rod and node, decrease deformation, and balance horizontal thrust generating in the pedestal of the reticulated shell. Based on a project, the design and construction of prestressed reticulated shell structure and the arrangement of the prestressed bar are disserted.
Keywords: reticulated shell; global node; prestressed; pedestal