With the overall development of cities in our country, people’s requirements for indoor beauty, safety, quietness, thermal insulation, and breathability of buildings are becoming more and more common. Therefore, composite roof panel systems are widely used in various industries, sports and sports. It is also used more and more in buildings such as , entertainment, exhibition halls, retail supermarkets and so on. At present, the existing roof structure of such buildings usually uses roof panels with internal support structures to obtain a flexible placement space between the roof panels to fill with sound insulation cotton, thermal insulation cotton and breathable membrane, and then Meet people's requirements.
In the current light steel building roofing system, the concealed buckle roof system has been widely used for its superior waterproof performance and convenient installation. In the series of panel types, the roof panels are connected through brackets and roof purlins. The roof panels include panels and protrusions arranged longitudinally on the panels. The protrusions are in the shape of grooves with buckles, which are locked with the buckle hooks on the brackets. Connect, thereby installing the roof panel on the bracket. Both ends of the roof panel are designed with male and female buckles, which are buckled and connected with adjacent roof panels.
For example, Chinese patent application No. 01144484.3 discloses an internally connected profiled steel plate, which is provided with multiple protruding reinforcing ribs longitudinally in the middle of the profiled steel plate, and a connecting plate is set inside the main protruding reinforcing rib to fix the Screws fix the connecting plate to the supporting purlins, and the lower ends of the connecting plates are pressed on both sides of the main raised reinforcement ribs to fix the profiled steel plate on the supporting purlins. Its advantages are: the profiled steel plate is fixed on the purlins through metal nails and connecting plates, without drilling holes in the profiled steel plate, which improves the waterproof performance and service life of the profiled steel plate.
However, this type of concealed roof panel is suitable for use in areas with very large wind loads