1. Semi-circular shape design of the ceiling of the wedding hotel: first put the details of the arc top node, then make the arc keel according to the details, then hang it firmly with the suspender, cut and pave the lining board or panel after completion, and finally splice and install it.

2. When designing a circular ceiling, the curve shape can be divided into plane curve and three-dimensional curve. When making a plane curve, you can directly make the auxiliary keel into a curve shape, and set the corresponding main keel and suspender on it. When making the elevation curve, cut the designed curve with multi-layer board, fix it with corresponding keel, and wrap it with flexible plywood or metal plate, gypsum board and other surface boards.