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    Outer supports for array of steps

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    • C Offline
      cattz
      last edited by

      Very much a newbie here and with GSU 8. I'm experimenting with Sketchup and have done a flight of steps as a componant with move/copy and added uprights and rail with the pen tool. Now I need to provide upright supports for the outside of the treads down to ground level. Is there an 'auto' way or do I have to make a componant and then explode and push/pull each one to the correct height? Does this make sense or would a pic help?

      Reality is only how the mind perceives it to be.

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      • Dave RD Offline
        Dave R
        last edited by

        First, if you think you have to explode components to modify them, you need to learn about editing them.

        I'f I were doing what it sounds like you're doing I would make the geometry of a post (maybe the shortest one) and then copy it to make an array similar to the treads. Then edit each one in turn to adjust the height accordingly. Then make components of them. If you can use Push/Pull to adjust the height, you can use the double click option to quickly repeat the extrude distance on the supports.

        Etaoin Shrdlu

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        • pbacotP Offline
          pbacot
          last edited by

          Hard to say what you have to start. On the simplest level, here is an idea, which might apply to different scenarios. Do not explode the components.


          Screen shot 2012-12-14 at 6.45.47 PM.png

          MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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          • C Offline
            cattz
            last edited by

            Thank you. I realised about editing componants after I posted.

            http://www.longshots.co.uk/pics/treads.jpg

            Reality is only how the mind perceives it to be.

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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

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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

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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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