Patent ID: 6125603
Filing Date: 2000-10-03
Classification: E04B,E04C

Abstract:
Metal supporting structure comprising a cold-formed section which is a composite of a plurality of elementary sections which are permanently assembled together to form continuous longitudinal slots between opposed longitudinal edges of two elementary sections, said longitudinal edges facing inwards and each being inclined with respect to the opposite edge so that they converge inwardly; fixing devices having a receiving plate forming a channel with lateral walls inclined inwardly in a same way as said longitudinal edges and one or more locking plugs which also have lateral walls inclined inwardly in the same way as said edges, said receiving plate and said locking plugs being oppositely fixed between and along said longitudinal slots (27) to grip opposite edges of two said elementary sections by screw means between said receiving plates and said locking plugs, said longitudinal edges of the elementary sections being manufactured with corrugations corresponding to corrugations present in the lateral walls of the receiving plates and in the lateral walls of the locking plugs, said longitudinal edges of said elementary sections have said corrugations along a whole length of said longitudinal edges.