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    Outer supports for array of steps

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    • TIGT Offline
      TIG Moderator
      last edited by

      That's a looooong staircase. ๐Ÿ˜ฒ

      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

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      • C Offline
        cattz
        last edited by

        @tig said:

        That's a looooong staircase. ๐Ÿ˜ฒ

        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. ๐Ÿ˜† but appreciate your input. Thank you.

        Reality is only how the mind perceives it to be.

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        • TIGT Offline
          TIG Moderator
          last edited by

          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 ๐Ÿ˜ฎ

          TIG

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          • massimoM Offline
            massimo Moderator
            last edited by

            Here in Italy is max 14 steps before a landing.

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            • TIGT Offline
              TIG Moderator
              last edited by

              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.

              TIG

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              • Dave RD Offline
                Dave R
                last edited by

                No matter how many steps are allowed, it isn't GSU anymore and hasn't been since the summer. ๐Ÿ˜‰

                Etaoin Shrdlu

                %

                (THERE'S NO PLACE LIKE)

                G28 X0.0 Y0.0 Z0.0

                M30

                %

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                • C Offline
                  cattz
                  last edited by

                  @dave r said:

                  No matter how many steps are allowed, it isn't GSU anymore and hasn't been since the summer. ๐Ÿ˜‰

                  What is it now then?

                  Trimble sketchup - is that right?

                  Reality is only how the mind perceives it to be.

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                  • Dave RD Offline
                    Dave R
                    last edited by

                    Yes.
                    tsu.png

                    But you can just call it SketchUp. ๐Ÿ˜‰

                    Etaoin Shrdlu

                    %

                    (THERE'S NO PLACE LIKE)

                    G28 X0.0 Y0.0 Z0.0

                    M30

                    %

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                    • GaieusG Offline
                      Gaieus
                      last edited by

                      @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?


                      proper-staircase.jpg

                      Gai...

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                      • Bob JamesB Offline
                        Bob James
                        last edited by

                        ๐Ÿคฃ

                        i7-4930K 3.4Ghz, 2x GTX780 6GB, 32GB DDR3-1600 ECC, OCZ Vertex 4 500GB, WD Black 3TB, 32TB NAS, 4x 27" Monitors, SpaceMouse Pro, X-keys XK-60

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                        • GaieusG Offline
                          Gaieus
                          last edited by

                          What??? ๐Ÿ˜•

                          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. ๐Ÿ˜’

                          (Worst thing is that the design and plan got the building permit)

                          Gai...

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