To complete the stringer stairs in the foyer MetallArt created curved and straight all-glass railings for the galleries on each floor. Their transparent appearance visually emphasises the filigree steel design of the stringer stairs and rounds out the convincing architectural layout.
The laminated glass panes, showing a thickness of 20 mm and a length of 2,000 mm were cast in the glass pocket free of constraint forces and sealed by means of a verifiable casting resin technology. The top cover of the frame was equipped with an EPDM rubber profile.
To provide for the substructure for the on-site installation of the wooden handrails, U-sections made of steel were attached on top of the glass panes of the railings.
The sculptural stringer stairs featuring a smooth underside steel cladding impress with an especially light and flowing appearance. The consistent helix angle of the stairs stringers is the decisive aspect for the homogenous design in which the geometric changes within the half and stair head landing do not not appear. The stringer stairs are designed with raised stringers showing variying spaces of their upper and lower edges towards the run of the tread steps.
In addition to the delivery and assembly of the stringer stairs MetallArt prepared the CAD construction planning in 3D design as well as the verifiable structural analysis and the vibration resistance calculation.