What are the design methods of light steel structure factory roof?

I believe everyone is familiar with light steel structure workshops, but have you noticed the design forms of the roof? Below I will briefly introduce for you:

Steel structure roof, wall and other enclosure structures are generally made of color steel profiled plates, and their thickness is generally 0.4~1.0mm. The color steel plate is rolled and formed with pre-coated color steel plate such as galvanized, and the surface is sprayed with paint. For buildings that require thermal insulation and thermal insulation, double-layer color steel profiled boards can be used, and thermal insulation materials (such as glass wool, rock wool, foam, etc.) are filled in the middle.

The filling material can be filled on site, or it can be pre-compounded with the color steel plate factory (called color steel sandwich panel). The building roof is the load-bearing and enclosure structure of the top layer of the building. Its enclosure function and façade modeling effect are very important to the entire building, and it is the most important part of the steel structure enclosure system for water leakage. The main function is to resist the invasion of wind, rain and snow, and to bear the self-weight of the roof and the wind and snow loads on the roof.

The roof of steel structure houses roughly includes color profiled steel plate, color steel plate sandwich panel, composite profiled steel plate, various lightweight roof panels, GRC panels, metal arch corrugated roof panels, etc. types. Lightweight steel structure roofing and wall materials mainly use color profiled panels or sandwich panels. In the steel structure workshop project, the best roofing materials are mainly glass wool sandwich panels and rock wool sandwich panels.

The roof panel of the steel structure building system has two types of long connection and lateral connection on the roof. The long-direction connection is mainly lap joint, that is, the upslope plate presses the downslope plate, and the lap joint is provided with a special waterproof sealant and a special fixed pressure strip. There are currently three main ways of lateral connection:

1. Concealed buckle connection fixed support is fixed on the roof purlin with flat head self-tapping screws, and then the profiled roof panel is buckled with the fixed support.

2. The lap joint overlaps the lap edges of the profiled steel plates, and uses various bolts, rivets or self-tapping screws to form a whole. The connection is divided into two types: with sealant groove and without sealant groove, roof screws are exposed, and the wave crest is relatively low.

3. The occlusal recessed connection is a relatively advanced roof panel connection method. The roof system fixes the roof panel by sliding brackets, which is not only conducive to roof waterproofing and maintaining the integrity of the roof, but also effective Deformation caused by thermal expansion and contraction can be effectively controlled.

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