| 摘要 |
A corrugated composite slab profile (1) made of metal sheet for a concrete floor, in which the corrugations are trapezoidal in cross-section, and which profile (1) includes longitudinal folds (3) bent from the same metal sheet vertical to the level of the profile sheet, the walls of which are right next to one another and in which there are adhesion dents (4). In order to improve fire resistance the folds (3) are located in the sloping surfaces of the profile sheet (1) and only in these, and the adhesion dents (4) are depressions pressed downwards from the upper edge of the folds (3), at which point the ridge of the fold is spread sideways and that the walls of the folds (3) are right next to one another at the adhesion dents (4). |
