Spacer for steel-reinforced concrete; has corrugated material with oval or flattened cross-section welded between superimposed longitudinal rods with oval or flattened cross-sections

摘要

The spacer has at least two longitudinal rods (1,2) with oval or flattened cross-sections arranged one on top of the other. A corrugated material (4) with an oval or flattened cross-section is welded between the longitudinal rods. The cross-sections of the rods diverges vertically from a given centre line and the cross-section of the material diverges horizontally from a given centre on the basis of shape-dependent strength.