Sheet steel and concrete composite ceiling - has anchoring bars through holes in sheet sloping double stems

摘要

In storeyed buildings of steel or reinforced concrete construction, the end anchorage for shaped sheet steel plate composite ceilings is independent of the substructure, and is used for laminar adhesion between steel sheet and concrete above a support. For this purpose anchoring irons, in the form of round steel bars of any shape, are led through holes (3) in the sloping double cross arm stems of steel sheets (1), one behind another, in numbers dependent on structural demands, before concreting. The steel sheets are effectively anchored in the concrete (2) independently of the substructure. The holes may be drilled after laying the sheets and before concreting, or mechanically, electrically or hydraulically pressed in by pointed punches made of a harder material.