[{"data":1,"prerenderedAt":58},["ShallowReactive",2],{"article:geodesic-dome:en":3},{"title":4,"seoTitle":5,"description":6,"label":7,"lead":8,"blocks":9},"Geodesic dome in timber","Geodesic timber dome from Dynamo to XFEM4U · Struct4U","A user project on video: a geodesic dome in timber, generated with Autodesk Dynamo and Revit, exported to XFEM4U and shown with its unity checks.","User project · video","“This video contains a project of a geodesic dome made of timber. The script is made with Autodesk Dynamo and Autodesk Revit and exported to XFEM4U.” That is the video’s own description; below is what the video shows.",[10,14,17,44,46,49,51,53,56],{"type":11,"id":12,"text":13},"h2","shown","What the video shows",{"type":15,"text":16},"p","The cover of the video puts three programs side by side: the dome in Autodesk Revit (top left), the Dynamo script that generates it (bottom left), and XFEM4U 2023.2 with the result of the calculation (right).",{"type":18,"head":19,"rows":22,"align":41,"compact":43},"table",[20,21],"","In the video",[23,26,29,32,35,38],[24,25],"Program","XFEM4U 2023.2",[27,28],"Material","timber",[30,31],"Geometry","generated with a Dynamo script in Autodesk Revit, then exported to XFEM4U",[33,34],"Result on screen","the governing unity check per member, from 0.00 to 0.62",[36,37],"Load combination","2.2 ULS: live load with a sway imperfection of 1\u002F227 in the −X direction",[39,40],"Self-weight","859.1 kg, from the status bar",[42,42],"l",true,{"type":15,"text":45},"The highest unity check on screen is 0.62, so in this combination every member has spare capacity. The sway imperfection is part of the load combination: XFEM4U applies it in both directions, so every ULS combination is calculated twice. How sway imperfections are set up is explained in [second-order analysis and imperfections](learn:second-order).",{"type":11,"id":47,"text":48},"workflow","From script to analysis model",{"type":15,"text":50},"A geodesic dome is a typical job for a script: many members, all slightly different, on a sphere. In this project the geometry came from Dynamo inside Revit and was exported to [XFEM4U](product:xfem4u) for the analysis and the checks.",{"type":15,"text":52},"Models can also come in through XML, which is how structures made in Python, VBA or Excel reach XFEM4U and XFrame2D; see [XML in XFEM4U and XFrame2D](blog:interoperability-xml).",{"type":11,"id":54,"text":55},"about","About this page",{"type":15,"text":57},"The video does not name the engineer, the client or the location, so this page does not either. The numbers above are read from the screen in the video.",1792702121475]