Steel staircase design (Eurocode) 2

[ajay__re]

Hi,

I'm looking for a design example of steel staircase design according to Eurocode standards.

Would be very helpful if someone can point me in the right direction with a reference

Thanks in advance!

 

[Agent666]

While not to Eurocode 3, the AISC design guide 34 is a fairly comprehensive coverage of the subject of stair design. Most of the underlying principles will apply equally to Eurocode design, given in most steel stairs of normal proportions serviceability will likely govern (deflections or vibration).

Often the depth of the sloping stringers to accommodate the treads within the depth will mean from a design perspective they will be oversized for strength and probably serviceability. Which means more often than not, the design of stsirs becomes more of a detailing governed exercise than a true design exercise.

 

[Ganesh Persaud]

I’m not sure about the BS code as I’m familiar with the AISC specifics. However the principle is generally the same.

In the design of the stringer, you analyze it as a struct having vertical forces (point loads from each tread/riser.

After computing the max moment and shear, in this case, shear and axial forces would govern. All you do after this is simply use the beam shear and axial checks as per BS code and make sure that the with the member you chose provide a shear and axial capacity that exceeds what’s the actual so it passes the design.