What is the origin of the development of fastener scaffolding?

The full name of fastener scaffold is socket fastener steel pipe support frame/scaffold, which is a product of Germany in 1980s. It has been used abroad for more than 30 years and has been improved. It is a very mature construction method. At present, it is the most widely used and trusted support system. After years of production experience, the production enterprises have been further improved and optimized. At present, they mainly produce two kinds of fastener scaffolding, 48 system and 60 system. Taking the 60 series heavy-duty support frame as an example, the allowable bearing capacity of a 5-meter-high single column is 9.5 tons (safety factor is 2). The failure load reaches 19 ton. 2-3 times that of traditional products. Plate fastener scaffold, also known as disc scaffold, is not the same type as wheel fastener scaffold. In China, many people confuse plate-buckle scaffolding with wheel-buckle scaffolding, which is obviously wrong. Fastener scaffold technology originated in Germany and is the mainstream product in Europe and America.

Buckle scaffold technology originated in Germany and is the mainstream product in Europe and America. Support frame is divided into vertical pole, horizontal pole and diagonal pole. There are eight holes in the disc, and four holes are dedicated to the horizontal bar. Four large holes are dedicated to diagonal bars. The connection between the crossbar and the diagonal is pin-type, which can ensure the firm connection between the crossbar and the upright. The cross bar and diagonal bar joints are specially made according to the circular arc of the pipeline and completely contact with the vertical steel pipe. After the bolts are tightened, they are stressed at three points (two points above and below the joint and one point between the bolt and the disk), which can be firmly fixed, increase the structural strength and transfer the horizontal force. The head of the cross bar is fully welded and fixed with the steel pipe body, and the force transmission is correct. The oblique head is a rotatable joint, and the oblique head is fixed with the steel pipe body through rivets. As for the connection mode of the vertical pole, the square pipe connecting rod is the main one.