Method for lap joint construction of roof panel of space frame structure workshop

The space frame structure workshop has developed rapidly all over the world due to its advantages of light weight, large span, diverse colors, low cost, and convenient construction. Nowadays, many production-oriented enterprises adopt space frame structure in their warehouses. Compared with traditional building structure workshops, the processing and installation cycle of space frame structure workshops is relatively short, and the cost is reasonable and recyclable, which is suitable for production-oriented enterprises. It can undoubtedly save costs and provide power for the development of the enterprise. This has become one of the important reasons why the space frame structure workshop has been widely used in the world.

Space frame structure factory roof panel overlap structure: the color steel plate is dense and impervious, but because the color steel plate corrugated plate is a fabricated enclosure structure, the splicing seam between the plates becomes a direct source of rainwater leakage. The reasonable structure of the seam becomes an important factor in choosing the corrugated plate roof of the grid structure workshop. The structure of the plate seam is directly reflected on the two long sides of each plate. At present, there are 4 ways to construct the joints of the house panels of the space frame structure factory:

1. Natural buckle type: It is the continuation of the form of cement asbestos corrugated tile and galvanized iron sheet. However, the old-fashioned buckle method requires at least one flat wave distance, and the use of color steel plate is generally larger.When used as a roof, if another half wave is overlapped, it will increase the economic index. Therefore, many methods adopt the method of overlapping a wave. This edge shape causes a certain hidden danger to the waterproofing of the panel joints of the space frame structure factory.

2. Waterproof cavity type: a cavity of about 4mm is formed at the two buckling edges. This cavity cuts off the capillary passage caused when the two steel plates are attached, and the water column in the cavity will also balance the phenomenon of rainwater infiltrating into the room caused by the difference in atmospheric static pressure between the indoor and outdoor atmosphere.
3. Bite type: It is divided into 180° expansion and 360° bite type. This method uses an undercutting machine to snap the two overlapping edges of the plate together. A 180° undercut is a non-close occlusion, and 360° is a close occlusion.It is similar to the form of manual undercutting of tinsmiths, so it has a certain airtight effect.
4. Buckle cover plate type: the two sides are symmetrically arranged, and the bayonet structure is made on both sides, and the buckle cover is buckled on it after installation.