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
E04C2/42—Gratings; Grid-like panels
E04C2/421—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction
E04C2/422—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern
E04C2/425—Gratings; Grid-like panels made of bar-like elements, e.g. bars discontinuous in one direction with continuous bars connecting at crossing points of the grid pattern made of perforated bars
Dispositif d'assemblage d'éléments longilignes d'ossature en béton armé et ossature comportant des éléments assemblés par de tels dispositifs