Method for tower connection treatment of steel structure building panels

Overlapping structure of steel structure house panels: Color steel plates are dense and impermeable, but due to the prefabricated enclosure structure of color steel plate pressure plates, the joints between plates have become a direct source of rainwater leakage. The 10000 ㎡ laminated roof generally has a 15 meter long joint, so whether the joint structure is reasonable has become a key factor in choosing a steel structure laminated roof. The structure of the board joint is directly reflected on the two long sides of each board. At present, there are four seam structure methods for the edge of pressure plates at home and abroad, namely natural overlap, waterproof cavity, buckle cover, and biting edge.

1. Natural buckle type: It is a continuation of cement asbestos corrugated tiles and galvanized iron sheet tiles, but the legal requirement for the old buckle type is to overlap at least one flat wave distance: the use of color steel plates usually has larger waves. If used as a roof, overlapping by one and a half waves will improve the economic indicators. Therefore, many methods adopt the overlapping wave method, which poses a certain hidden danger to the waterproofing of the joints of steel structure building panels. But there is usually no problem when making walls.
2. Waterproof cavity type: Two buckles form a cavity of approximately 4mm. The cavity cuts off the capillary channel attached to the two steel plates, and the water column inside the cavity also balances the indoor and outdoor atmospheric static pressure difference caused by rainwater infiltration into the room. This method has been applied to the cross-sectional shape design of the new generation of steel structure house pressure plates and is an economically effective approach.

3. Bites are divided into 180 degree expansion type and 360 degree bite type. This method involves using an edge biting machine to bite both sides of the board. 18000 ° bite is a non tight bite, while 360 ° bite is a tight bite form, similar to the manual bite form of a blacksmith, thus having a certain degree of airtightness. This type of board is an ideal and reliable waterproof board, but its cost is higher than the previous ones.

4. Type of buckle cover: symmetrically set on both sides, clamped at the edges of the structure on both sides, buckle cover after installation. This method adopts the principle of cavity to set the buckle cover; Waterproof is reliable, but the amount of color board used is too large.