Method for prefabricating and mounting thin sheet metal beams

摘要

Method for prefabricating and mounting thin sheet metal beams consisting in stacking the metal sheets flat and assembling them 2 by 2 into sections having the shape of a tube with an opening. The placing is carried out with a crane which makes it possible to unfold the panel and to place it on the building by using links which are articulated on the odd row assembly sections. The even row assemblies comprise 2 sections joined by strip metal which fold back over themselves during the forming of the undulations in which the metal sheets must turn through 180 DEG . <IMAGE>