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Dlubal RFEM 5 - Add-on Modules: RF-FORM-FINDING & RF-CUTTING-PATTERN
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First Steps with RFEM
Description
Add-on modules for form-finding of membrane and cable structures. The shape is calculated by the equilibrium between the surface stress (prestress) and natural or geometric boundary conditions.
- Simulation of isotropic and orthotropic membranes
- Consideration of the substructure flexibility
- NURBS transformation
- Generation of additional NURBS points for load input
Keywords
Form-finding Cable Membrane Nurbs Prestress PVC URS Pattern Stirrups Tutorial Bridge RFEM RSTAB Dlubal Dlubal Software Structural analysis Structural engineering software Structural analysis software Dynamic analysis Design EC Eurocode Eurocodes BIM Building Information Modeling CAD FEA FEM Finite elements Finite element method Structural design
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Cutting Pattern of Membranes and Cable Elements
Cable and tensile membrane structures are regarded as very slender and aesthetic building constructions. The partly very complex double-curved shapes can be found using suitable form-finding algorithms. One possible solution is to search for the form via the equilibrium between the surface stress (provided prestress and an additional load such as self-weight, pressure, and so on) and the given boundary conditions.
- How is it possible to create the cutting pattern geometry for a decorative sticker on a biaxially curved membrane roof?
- How are the properties of the elasticity and shear modulus of a membrane fabric with the usual force/length syntax transformed into the general force/surface syntax to be entered in RFEM?
- How do I create a user-defined fabric?
