| 摘要 |
1. A reinforcement mat for reinforced concrete, consisting of preferably ribbed or embossed longitudinal element (1, 1a ; 1, 1d) and of tranverse wires, which elements and wires cross one another and are welded together at the crossing-points, wherein on both mat borders zones are provided, in which the cross-section of steel-related to unit widht - is reduced at least to about one half in comparison to the inner region of the mat, characterized in that one longitudinal reference element (1b) which is formed distinguishably from the other longitudinal elements (1, 1a ; 1, 1d) of the mat is located in each case symmetrically with respect to the longitudinal center axis (S) of the mat at a distance (A) from tha t the mat edges, which distance is greater than the width (4a ; 2a) of said border zones of reduced related cross-section of steel and comprises between 1/4 and 1/6 of the mat width (B), preferably at leat about 1/5 of the mat width, said longitudinal reference element defining an increased overlapping region, which - if observed - allows for always taking into account the accumulations of steel in the overlapping region as being uniformly distributed over the reinforced area, due to the increased ratio between the overlapping width (A) and the distance (D) between the longitudinal axes of symmetry of the overlapped mats. |
