Structural Steel Spiral Staircase Design
Spiral staircase dimensions design standards.
Structural steel spiral staircase design. What about incorporating frameless glass balustrades into your architectural design. Furnish spiral stairway as manufactured by stairways inc 4166 pinemont houston texas 77018 1 800 231 0793. A spiral staircase designed as lobby staircase is attractive safe simple comfortable and space saving. Three generations of experience allows reliability and on time delivery of an outstanding product.
These stairs have a wide flight to start then split off into two narrower sections going in opposite directions at a mid landing. Among different configurations taken by spiral staircases the most common is the circular format. Spiral staircases can adopt different structural configurations. Design a straight flight staircase in a residential building that is supported on reinforced concrete walls 1 5 m apart center to center on both sides and carries a live load of 300 kg m 2.
The risers are 16 cm and goings are 30 cm. The most common ones have a circular format with a central mast from which the steps are fixed. Outdoor spiral staircases can be finis hed painted in desired colours in addition to hot dip galvanizing. But it is essential as a civil engineer to know the restrictions and basic concepts within the design of the spiral staircase.
Free standing staircase structures are complex in analysis and design but with finite element analysis packages simple solutions can be easily obtained as shown in this post. A rail fixed parallel above the pitch line at the sides of. Though the treads may be supported many other ways. Stairway shall be shipped in a complete single unit.
The stringers are notched so that the risers and treads fit into them. There are bim and other software to determine the spiral staircase dimensions. In this post we are going to compare the results obtained with staad pro software with result from manual analysis using the method proposed on table 175 reynolds and. Stringer or string the structural member that supports the treads.
This makes for decorative staircases with the best possible rust protection. Image courtesy of salter spiral stair. These could be stainless steel handrails with timber treads. We build single and double stringer staircases floating staircases spiral staircases or fire escapes.
Spiral staircases with a radius larger. There are typically two stringers one on either side of the stairs.