Outer supports for array of steps
-
That's a looooong staircase.
For a stair's 'structure' it's normal to have 'stringers' - i.e. steel-beams running along the stair's sides to support the ends of the treads; or perhaps a beam, or beams, located below the flight to support it.
These beams in turn are supported off adjacent cross-beams, walls or have columns/post to support them down to the ground/foundations.Incidentally, there are building-codes and safety-regulations that apply to all stairs - depending on their 'usage' - there should be horizontal 'landings' every so often - probably 12 to 16 steps. Also a long staircase should change direction after about 36 steps by at least 30 degrees in plan...
A step's rise and its tread-going are also predicated... -
@tig said:
That's a looooong staircase.
Yes it's for the outside of an aircraft hanger.
I'm only just trying different things out in GSU - not trying to comply with building regs.
but appreciate your input. Thank you. -
Even on large structures like Hangars and Gas-holders the stairs must be safe to use...
Having hundreds of steps is a single line, without any landings would never get built, because someone will trip and fall and die... it'd also be extremely tiring to use, let alone frightening
-
Here in Italy is max 14 steps before a landing.
-
In the UK it's 12 in 'public building' and 16 inside houses and all other areas that are only accessed by able-bodied people - e.g. plant-rooms, hangar-roofs etc.
-
No matter how many steps are allowed, it isn't GSU anymore and hasn't been since the summer.
-
@dave r said:
No matter how many steps are allowed, it isn't GSU anymore and hasn't been since the summer.
What is it now then?Trimble sketchup - is that right?
-
Yes.
But you can just call it SketchUp.
-
@tig said:
...there should be horizontal 'landings' every so often... Also a long staircase should change direction after about 36 steps by at least 30 degrees in plan...
Something like this?
-
-
What???
Joking aside... Some architects would deserve living in the buildings they design. We have a certain one with quite a bit of fame here (all national awards they can get, professor of architecture at the university and such) and I know of a two storey house he designed where he forgot to add a staircase inside the house. Now imagine going upstairs every evening on the outside staircase in winter.
(Worst thing is that the design and plan got the building permit)
Advertisement