[{"data":1,"prerenderedAt":53},["ShallowReactive",2],{"article:ferris-wheel:en":3},{"title":4,"seoTitle":5,"description":6,"label":7,"lead":8,"blocks":9},"Ferris wheel in steel","Steel Ferris wheel modelled in XFEM4U · Struct4U","A user project on video: a Ferris wheel in steel, modelled in 3D in XFEM4U and shown with its displacements for the envelope of the ultimate limit states.","User project · video","“This video contains an example project of a Ferris wheel made of steel.” That is the video’s own description; below is what the video shows.",[10,14,17,44,46,48,51],{"type":11,"id":12,"text":13},"h2","shown","What the video shows",{"type":15,"text":16},"p","The wheel is a 3D frame in [XFEM4U](product:xfem4u) 2023.2: two rims joined by cross members and spokes, carried by inclined legs on either side. The cover of the video shows the displaced shape in colour.",{"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","steel",[30,31],"Result on screen","the displaced shape in colour for the envelope of the ULS combinations, on a scale from 0 to 29.1 mm",[33,34],"Load combination in the status bar","1.2 ULS: fully loaded in operation, with a sway imperfection of 1\u002F300 in the −X direction",[36,37],"Self-weight","3,216.9 kg, from the status bar",[39,40],"Paint surface","107.4 m², from the status bar",[42,42],"l",true,{"type":15,"text":45},"XFEM4U gives the total self-weight and the total paint surface of the model in the status bar, both worked out from the profiles, which is handy for a first estimate of steel and coating.",{"type":15,"text":47},"Displacements in the ultimate limit state are useful for seeing how a structure behaves; the deflection checks themselves use the serviceability combinations. Sway imperfections are explained in [second-order analysis and imperfections](learn:second-order).",{"type":11,"id":49,"text":50},"about","About this page",{"type":15,"text":52},"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.",1792702121502]