折板是一种空间结构,它具有较好的力学性能,在各国得到了广泛的应用。我们容易想象,一张薄纸随手可折,轻而易举,如果把这张薄纸折成波浪形,再垂直波纹去折就不那么容易了,这就是折板有较好力学性能的机理。一块平板施工比较容易,而一块折板施工就比较困难了。以钢筋混凝土结构而言,平板支模和混凝土浇捣都比较简易,而折板的支模 Folding plate is a spatial structure. It has good mechanical properties and has been widely used in various countries. It is easy to imagine that a piece of tissue paper can be easily folded. It is not easy to fold this thin paper into waves and fold it vertically. This is the mechanism by which the folded plate has better mechanical properties. A flat construction is easier, and a folding construction is more difficult. In the case of reinforced concrete structures, the flat-plate molds and the concrete pouring bowls are relatively simple and the folding plates are moulded.