If attached to a dog leg the stringer will be welded.
Steel stringer beam staircase details.
Center square beam 100 200 6 100 150 5mm.
Stringer or string the structural member that supports the treads.
Stringer to steel platform or embedded steel at floor level landings.
They must be field welded with 1 8 welds similar to detail welds below.
Depending upon the span larger i beams can be used to increase strength.
There are typically two stringers one on either side of the stairs.
The stringers are notched so that the risers and treads fit into them.
Alternately both stringers can be supported with the same supporting beam.
It combines the steel i beam with a simple steel plate riser wedges and tread plates with the wood steps.
Stringer can vary in section 1 8 1 12 1 1 2 1 8.
Supporting beam the supporting beam supports the stringer or the dog leg if it exists.
A rail fixed parallel above the pitch line at the sides of a stair.
Though the treads may be supported many other ways.
Beam the stringer can be bolted or welded.
Each stringer can be independently supported.