Hi Rib and cassette tiles cannot be displayed beveled in a 3D perspective model. However, the analysis model is created and calculated correctly so that it is sloped. This situation in 3D perspective is among our notes. Rib and tape drawings are also created flat. Rib drawings need to be edited by angle with 2D drawing tools. It may be more convenient to run the rib beams parallel/perpendicular to the main beams. The curtain elevations are incorrect in your project. Change elevation = 0 to -400 upper elevation. Do not select 4/5R option in X and Y directions in analysis settings. All roof beams have a wall load of 1.5t/m. Check the wall loads. Curtainless DTS 3 You have to solve unidirectional slabs with Limited ductility level by taking R = 4. You can try to create your model with secondary beams and slabs instead of rib slabs and get R = 8 with High ductility level. This is how you can get the curved beam drawings.
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