E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
Plaque plane destinée à constituer une agrafe, agrafe de fixation d’une jambe de force sur un poteau constituée par pliage d’une telle plaque et procédé d’assemblage d’un poteau et d’une jambe de force au moyen d’une telle agrafe