Reinforced concrete staircase i.e. tiled slab staircase, has step elements produced in steel or supersize formwork of veneer plywood-framework and connected with one another, and recesses formed at lower side and upper side of step elements

摘要

The staircase has step elements produced in steel or betoplan(RTM: supersize formwork of veneer plywood) framework and connected with one another by a high-grade mortar. The step elements are designed in such a manner that a cast and reinforced unit is formed. Semi-lunar recesses are formed at a lower side and an upper side of the step elements with an equal distance to an edge. A support for wall sides is placed in the recesses, and has a stainless steel tube that is sheathed by a rubber cap.