| 摘要 |
<p>The reinforcement plate is used for formwork in excavationsin underground works as part of a reinforcement box or in thereinforcement by smooth bars. It has easy assembly an maintainsthe stability in any bending in its triangular hollow profilebeing at the lower end of the knife-edge support. A robust steelloop (ring) (18) is inserted in the triangular hollow profile (9)for the suspension of partially straight (21) and partiallyrounded (20) external perimeter the axial external contour ofwhich matches the surface of its surrounding covering sheet steel(23) The straight part (21) of the perimeter forms part of theedge (13) of the knife-edge support (12), and the rounded part(20) is welded to the boundary parts of the hollow profile (9).3 claims, 4 figures</p> |
