Concrete beam structure roofing methods:

Civil construction has divided the roof into several small openings according to design requirements. There are basically the following methods according to the civil construction conditions:

1. Connection method of concrete beam structure and wooden frame: Civil engineering will make the lighting shaft wall into a concrete structure according to the design requirements and make a drainage ditch. The method of connecting the wooden frame as shown in the right picture is adopted. The wooden frame should be swelled with the concrete beam structure. And do anti-corrosion and waterproof treatment.

Note: The width of the well beam is not less than 250m, and the height is generally not less than 300mm depending on the local rainfall. The width of the lighting well wall is 60mm, and the height is not less than 150mm.

Note: The PC lighting cover is the same as the PMMA lighting cover in the method, but it is different from the FRP lighting cover. The FRP lighting cover is usually fixed in an upper connection, but the FRP lighting cover can also be fixed in a side connection with PC and PMMA lighting covers. Method, but the side width size has changed.