Spiral staircases, often called spirals or spiral staircases, are usually arranged around a single column. It is popular because of its streamlined shape, elegance, and space-saving.
The steel structure spiral staircase is a more commonly used style of staircase decoration, and it can also add many highlights to the home, so how to formulate the size when designing the steel structure spiral staircase? The following is a brief description of DEMOSE for everyone, I hope it can bring you help.
Spiral staircase design dimensions
1. The height of the stair handrail (measured from the leading edge of the step) should not be less than 0.90m; the height of the outdoor stair handrail should not be less than 1.05m.
2. When the width of the stairwell is greater than 0.20m, the gap between the vertical bars of the handrail should not be greater than 0.11m to prevent children from falling.
3. The net width of the stair platform shall not be less than the width of the runway, and shall not be less than 1.10m.
4. The width of the runway is clearly specified in the specification of residential design, and in other buildings, the requirements of fire evacuation must be met. The width of expressive stairs in public buildings is usually on the large side, but pay attention to the relationship between the handrail setting and the width of the rung. That is: the staircase should be equipped with a handrail on at least one side, when the net width of the runway reaches three streams of people, there are handrails on both sides, and when it reaches four streams of people, the middle handrail should be added First, the width of indoor and outdoor steps should not be less than 0.30m, and the step height should not be greater than 0.15m, usually using the two parameters of 0.35m and 0.125m. In particular, it is not allowed to set only one step, at least two steps, because the height difference between the upper and lower ground is too small, pedestrians are not easy to distinguish the height difference there, lack of mental preparation, step out of the false step and hurt the foot and leg.
Another problem is that when using a spiral staircase as an evacuation ladder, it must meet the requirements that the tread width should not be less than 0.22m at 0.25m from the inner ring handrail or simple wall, which is clearly stipulated in the fire code.
The above is the relevant description of the design and size of the steel structure spiral staircase, and everyone can also have a bottom when building stairs for their own home. After understanding the steel structure spiral staircase size, customers who need to customize spiral staircase can contact our company.