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3D Truss Models

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  • P Offline
    pbacot
    last edited by 3 Feb 2016, 00:08

    Looks nice!

    MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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    • M Offline
      medeek
      last edited by 3 Feb 2016, 00:37

      More "Fun with Roofs".

      This roof was generated by first creating a hip roof primitive then deleting all but 3 components which were then copied and rotated into place for the lower roof hip corner. The shed roof /w ledger component was created with one primitive and then copied and rotated into place. Overall a fairly painless process now that I am somewhat familiar with navigating my way around SketchUp. The fascia required a couple of trims.

      The pyramid at the top required no manual intervention. Approximately 10-15 minutes of work for a fairly substantial roof.

      http://design.medeek.com/resources/images/truss_su63_800.jpg

      View model here:

      Link Preview Image
      3D Warehouse

      3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

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      (3dwarehouse.sketchup.com)

      Nathaniel P. Wilkerson PE
      Medeek Engineering Inc
      design.medeek.com

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      • M Offline
        medeek
        last edited by 4 Feb 2016, 04:02

        Testing the real world application of the Medeek Truss Plugin. This model combines a double fink truss, raised heel fink truss, monopitch truss and shed roof with ledger. While creating the shed roof special attention to the birdsmouth cut was required to ensure that the fascia height of the rafters and trusses lined up. Also note the use of the raised heel type truss on the upper roof portion. Structural outlookers were specified for all gable overhangs.

        5:12 pitch roofs with rafters and trusses 24" o/c. I did not apply a level cut to the rafter overhangs but that would probably be a given. Span of the double fink is 48 feet with 2x6 top and bottom chords.

        http://design.medeek.com/resources/images/truss_su64_800.jpg

        http://design.medeek.com/resources/images/truss_su65_800.jpg

        View models here:

        Link Preview Image
        3D Warehouse

        3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

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        (3dwarehouse.sketchup.com)

        Link Preview Image
        3D Warehouse

        3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

        favicon

        (3dwarehouse.sketchup.com)

        If anyone has some real world applications using the plugin that they are willing to share I would be very interested to see how it is being used and it would also give me some direction for further development and improvements.

        Nathaniel P. Wilkerson PE
        Medeek Engineering Inc
        design.medeek.com

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        • P Offline
          pilou
          last edited by 4 Feb 2016, 10:11

          What a plugin! 😎

          Sorry for the diversion! 😉


          charpentes.jpg

          Frenchy Pilou
          Is beautiful that please without concept!
          My Little site :)

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          • M Offline
            medeek
            last edited by 4 Feb 2016, 17:33

            I've ran into this structural question before, where you have a stairway next to an exterior wall. My first thought is to call out a balloon framed wall up to the 2nd story top plate(s) but then that makes the rim board and double top plate of the first story discontinuous. What is the preferred solution or how have you seen this done in similar circumstances.

            Here is a quick mock up in SketchUp to better explain what the two options are:

            http://design.medeek.com/images/MISC/NAMATAME1.jpg

            http://design.medeek.com/images/MISC/NAMATAME2.jpg

            You can also view and download the 3D SketchUp model here:

            Link Preview Image
            3D Warehouse

            3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

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            (3dwarehouse.sketchup.com)

            Nathaniel P. Wilkerson PE
            Medeek Engineering Inc
            design.medeek.com

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            • J Offline
              juju
              last edited by 5 Feb 2016, 11:42

              Hi Nathaniel,

              I noticed that Extension Warehouse has two links for your plugin, the one should be removed, not so?

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              SketchUp Extension Warehouse

              Your library of custom third-party extensions created to optimize your SketchUp workflow.

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              (extensions.sketchup.com)

              Link Preview Image
              SketchUp Extension Warehouse

              Your library of custom third-party extensions created to optimize your SketchUp workflow.

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              (extensions.sketchup.com)

              Save the Earth, it's the only planet with chocolate.

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              • M Offline
                medeek
                last edited by 5 Feb 2016, 16:35

                For some reason there are two copies on Extension Warehouse, you're right. I'm looking into it.

                Nathaniel P. Wilkerson PE
                Medeek Engineering Inc
                design.medeek.com

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                • M Offline
                  medeek
                  last edited by 5 Feb 2016, 19:26

                  Example of a porch roof using the hip roof and shed roof primitives. I'm wondering if it might not be worthwhile to add in a feature to create this type of combination roof automatically. Shed Roof w/ ledger & hip ends.

                  http://design.medeek.com/images/MISC/NAMATAME3.jpg

                  View updated model here:

                  Link Preview Image
                  3D Warehouse

                  3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

                  favicon

                  (3dwarehouse.sketchup.com)

                  Nathaniel P. Wilkerson PE
                  Medeek Engineering Inc
                  design.medeek.com

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                  • P Offline
                    pbacot
                    last edited by 5 Feb 2016, 23:10

                    Both shed and hip add-on roofs would be useful, porches and partial 2-story structures.

                    MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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                    • M Offline
                      medeek
                      last edited by 7 Feb 2016, 23:36

                      http://design.medeek.com/support/trusspluginmanual/images/structural_outlookers.jpg

                      Nathaniel P. Wilkerson PE
                      Medeek Engineering Inc
                      design.medeek.com

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                      • M Offline
                        medeek
                        last edited by 8 Feb 2016, 08:00

                        Started the manual as a MS Word document however that doesn't work so well for hyperlinks. Starting over with an html manual page:

                        Link Preview Image
                        Medeek Design Inc. - Medeek Truss Plugin Manual

                        Medeek Design Inc. - Medeek Truss Plugin Manual

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                        (design.medeek.com)

                        Link Preview Image
                        Medeek Design Inc. - Common Trusses

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                        (design.medeek.com)

                        Couple of pages up, only about 25 more to go...

                        Nathaniel P. Wilkerson PE
                        Medeek Engineering Inc
                        design.medeek.com

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                        • M Offline
                          medeek
                          last edited by 13 Feb 2016, 06:59

                          Version 1.2.9 - 02.12.2015

                          • Added Shed Rafter Roof (all advanced options enabled).
                          • Added ceiling joist option for Shed Rafter Roofs.
                          • Initial menu now defaults to last picked option of session for that sub-menu item.

                          A typical application might be a clerestory roof with a upper shed roof and lower shed roof with a ledger board:

                          http://design.medeek.com/resources/images/truss_su66_800.jpg

                          View model here:

                          Link Preview Image
                          3D Warehouse

                          3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

                          favicon

                          (3dwarehouse.sketchup.com)

                          Nathaniel P. Wilkerson PE
                          Medeek Engineering Inc
                          design.medeek.com

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                          • M Offline
                            medeek
                            last edited by 14 Feb 2016, 14:20

                            Version 1.3.0 - 02.14.2016

                            • Added tail bearing truss type, configurations: (Fink).
                            • Metric input enabled for tail bearing truss type.
                            • Advanced options enabled for tail bearing truss type.

                            http://design.medeek.com/images/MISC/tailbearingtruss1.jpg

                            View model here:

                            Link Preview Image
                            3D Warehouse

                            3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

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                            I have shown 3 configurations of the same roof to display the differences with non-structural vs. structural outlookers (horz. & vert.). I am not exactly sure how to treat the gable end truss for this truss type since I have never dealt with this type of truss before. Specifically, where structural outlookers are employed. Any sample outputs showing the gable end truss with a dropped top chord for a tail bearing truss would be very helpful.

                            Theoretically, one could forego the gable end trusses altogether and just balloon frame up to the roof diaphragm but I would like to provide the option for gable end trusses if it is a typical method used in real construction of this type of roof.

                            Nathaniel P. Wilkerson PE
                            Medeek Engineering Inc
                            design.medeek.com

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                            • M Offline
                              medeek
                              last edited by 14 Feb 2016, 23:55

                              I am currently investigating the best method to construct the gable end wall and truss with a tail bearing truss. Show below are 3 different possible configurations:

                              http://design.medeek.com/resources/images/truss_su67_800.jpg

                              1.) Structural Outlookers (Vertical)

                              http://design.medeek.com/resources/images/truss_su68_800.jpg

                              2.) Non-Structural Outlookers (Horizontal)

                              http://design.medeek.com/resources/images/truss_su69_800.jpg

                              3.) Structural Outlookers (Horizontal)

                              This is just one possible method of framing the gable end wall into the gable truss with a 2x4 outlooker. Option 3 shown above is somewhat of a question, not sure how that heel joint would come together.

                              View the model here to analyze the different configurations:

                              Link Preview Image
                              3D Warehouse

                              3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

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                              (3dwarehouse.sketchup.com)

                              Nathaniel P. Wilkerson PE
                              Medeek Engineering Inc
                              design.medeek.com

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                              • M Offline
                                medeek
                                last edited by 15 Feb 2016, 02:55

                                Alternatively one could balloon frame the wall at the gable ends and attach a ledger for the ceiling:

                                http://design.medeek.com/resources/images/truss_su70_800.jpg

                                View model here:

                                Link Preview Image
                                3D Warehouse

                                3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

                                favicon

                                (3dwarehouse.sketchup.com)

                                In my opinion a partially sloping wall gets complicated to frame. From an engineering standpoint the balloon framed wall is also the strongest option.

                                This method of framing the gable end wall may make the most sense. I'm trying to form a consensus though on the best way to frame this so that users of the plugin are presented with adequate options that cover 90% or better of design situations they will come across in practice.

                                For those of you who are particularly interested in the the tail bearing truss please weigh in and let me know which option(s) works best for you.

                                Nathaniel P. Wilkerson PE
                                Medeek Engineering Inc
                                design.medeek.com

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                                • M Offline
                                  medeek
                                  last edited by 16 Feb 2016, 09:53

                                  Version 1.3.1 - 02.15.2016

                                  • Added Triple Fink and Quad Fink common truss types.
                                  • Structural outlookers (vert. & horz.) enabled under advanced roof options for Common (Triple & Quad Fink) truss types.

                                  http://design.medeek.com/resources/images/truss_su71_800.jpg

                                  Triple Fink @ 70' w/ 2x6 chords
                                  Quad Fink @ 80' w/ 2x6 chords

                                  View model here:

                                  Link Preview Image
                                  3D Warehouse

                                  3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

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                                  (3dwarehouse.sketchup.com)

                                  Nathaniel P. Wilkerson PE
                                  Medeek Engineering Inc
                                  design.medeek.com

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                                  • JQLJ Offline
                                    JQL
                                    last edited by 16 Feb 2016, 10:15

                                    Medeek, I've been following this thread from time to time. It's an impressive plugin you've been pulling together here! Congratulations!

                                    www.casca.pt
                                    Visit us on facebook!

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                                    • M Offline
                                      medeek
                                      last edited by 16 Feb 2016, 10:28

                                      @jql said:

                                      Medeek, I've been following this thread from time to time. It's an impressive plugin you've been pulling together here! Congratulations!

                                      Thank-you for your interest and the vote of confidence. I'm still plugging away at it every free moment I get, it is incredibly addictive and still amazes me what one can do with a little code and a well written API.

                                      With the tail bearing trusses I'm still waiting on more responses from architects, engineers and contractors so I can finalize the gable end truss for that specific truss type.

                                      It looks like I was featured in SketchUcation's latest newsletter, thank-you for that. I will say I need more feedback though, a lot of what drives this is the requests from users or potential users of the plugin.

                                      I haven't had the time to get back into the complex hip roof framing stuff but I would like to seriously attack that again as soon as possible.

                                      Nathaniel P. Wilkerson PE
                                      Medeek Engineering Inc
                                      design.medeek.com

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                                      • M Offline
                                        medeek
                                        last edited by 16 Feb 2016, 12:53

                                        I've been looking at a number of garage designs recently that employ an attic or storage truss. I'm finding that a lot of them tend to use raised heels to allow for more head room while having a lower roof pitch (ie. 6/12 - 8/12). I'm thinking about adding in raised heels for the attic truss type in the plugin.

                                        A quick mock up would look something like this:

                                        http://design.medeek.com/resources/images/truss_su72_800.jpg

                                        View model here:

                                        Link Preview Image
                                        3D Warehouse

                                        3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.

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                                        (3dwarehouse.sketchup.com)

                                        Ignore the unbalance in the panel lengths, in practice and in the plugin they will be properly balanced.

                                        What I do have a question on is the use of a top chord splice as shown in the above image so that the overhangs do not have to be as deep as the top chord in the non-triangulated region of the truss. I have never seen a splice used on a attic truss with a raised heel, I don't see why it can't be done but it is always nice to have a confirmation that someone else is doing this sort of thing in practice.

                                        Nathaniel P. Wilkerson PE
                                        Medeek Engineering Inc
                                        design.medeek.com

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                                        • P Offline
                                          pilou
                                          last edited by 16 Feb 2016, 14:43

                                          Do you think adapt your plugin for this sort of thing ?

                                          http://www.chantier-jezequel.com/wp-content/uploads/2013/01/2.3-gabarits-et-tableau-posés-cormorans-studio-andré16-600x400.jpg

                                          Frenchy Pilou
                                          Is beautiful that please without concept!
                                          My Little site :)

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