Steel staircase
Steel staircase
(OP)
Hello, im doing this for the 1st time.
Id like to know if the detail A and B are alright?
Is there better way to do it?
tnx for help

Id like to know if the detail A and B are alright?
Is there better way to do it?
tnx for help







RE: Steel staircase
I would increase the spacing between your fasteners depending on what you are fastening to.
What are your fasteners and what material are you fastening to?
RE: Steel staircase
RE: Steel staircase
Top/Bottom reaction is cca 12 kN.
I think if I choose 2x M14 (8.8) fasteners is more than enough. Only shear force is applied on fasteners or have I overlooked something?
RE: Steel staircase
1. Use C12 channels for the stringers. Slope should be about 7:12... +-
2. Use an equal angle diagonal splice of the platform portion to the stringer, not a vertical splice, or the channel depths will not match.
3. Delete the bottom vertical leg, foreshorten the C12 stringer to maybe 8" at the base and weld a flat plate to the bottom for (2) anchor bolts.
Mike McCann, PE, SE (WA)
RE: Steel staircase
RE: Steel staircase
Should DETAIL A have ENLONGATED HOLES (vertically) for fasteners/bolts because of the concrete beam deflection?
msquared48 you mean like this?
RE: Steel staircase
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.