Inline laser cut plate steel stringer
A recurrent theme in modern design is to let the structure speak for itself, and X1 staircase stringer design is an example of how effective this can be in creating visual appeal.
A recurrent theme in modern design is to let the structure speak for itself, and X1 staircase stringer design is an example of how effective this can be in creating visual appeal. The X1 is designed to create a high degree of openness and an impression of lightness. Plate steel stringers support an open tread and landing design, relying on the strength of complete laser cut section and generating a self-supporting structure.
Welded tread plates cross-brace the stringers. Continuous through the landing, this style of stringer allows for a floating appearance as it can span from the upper flight to an opposing wall or column without the need for intermediate landing supports. These design methods generate a light and open feeling, well-suited to many contemporary office layouts.
Stringers typically constructed from 200-400 x 12-200mm mild steel depending on span and load rating. Minimal plate steel dimensions that satisfy engineering requirements for design load are generally selected, reducing the bulk of the staircase and increasing the impression of lightness and openness. In some of the examples shown, the lower stringers of the upper flight continue beyond the landing to concealed columns in the wall. Regardless of the wall coverings (i.e. plaster, stone, shiplap), the penetration of blade-like plate stringers into the wall presents a highly effective and modern appearance.
This is one of the primary advantages of laser cut plate steel over other stringer types. Three alternatives for tread designs applicable to the X1 are shown. If these do not suit, a wide variety of custom tread assembly options are also possible. The X1 suits virtually any configuration of straight landings and flights: the illustrations use a particular configuration as an example.
Arden Architectural is a BSA licensed contractor for carpentry, joinery, glass, glazing and aluminium as well as structural metal fabrication and erection. Arden supplies a Form 16 (Licensed Contractor) on all projects. In design and construct contracts, a Form 15 (Design Engineer) certification is supplied upon request. For products and services incorporating this design element, the table below details compliance with relevant codes and standards.
||The Building Code of Australia
|AS NZS 1170.1-2002
||Structural Design Actions – Permanent, imposed and other actions
||Glass in Buildings. Selection and installation
|AS NZS 1554.1-2004
||Structural steel welding - Welding of steel structures
||Welding stainless steels for structural purposes
|AS NZS 4586-2004
||Slip resistance classification of new pedestrian surface materials
||Design for access and mobility
||Fixed platforms, walkways, stairways and ladders. Design,
construction and installation