A rail fixed parallel above the pitch line at the sides of.
Spiral staircase design calculation pdf.
The calculation of dimensions of a spiral staircase is very critical and performed with utmost care.
Space saving consider a staircase with a height of 3 meters which goes from an exit door down to ground level.
Custom design 68 delivery 68 site fixing 68 how to order 69 page 55.
Spiral staircases save valuable square meters because they occupy a much smaller area than a conventional staircase.
With daring shapes and diverse configurations they can also be iconic objects.
The walkline is located half way along the stair width method 3.
Stringer or string the structural member that supports the treads.
The walkline is located 2 3 of the way along the stair width measured towards the inner handrail method 4.
Calculation of spiral stairs enter the required dimensions h the height of the stairs d1 outer diameter d2 internal diameter c number of steps z the thickness of the steps a the rotation angle of the stairs help the length of steps in the spiral staircases should not be less than 80 cm.
The walkline is located 50cm 20 from the outer handrail.
It takes daring shape and configurations compared to the conventional staircase.
But it is essential as a civil engineer to know the restrictions and.
Spiral staircase there are bim and other software to determine the spiral staircase dimensions.
The stringers are notched so that the risers and treads fit into them.
A spiral staircase is in the vast majority of cases a very practical solution of a staircase problem.