reference strategy Form finding With Grasshopper A generative modeling environment for Rhinoceros Gerry D Anza Architect The Concept of Form Finding in Architecture is a old topic ID: 1019741
Download Presentation The PPT/PDF document "Rhino Membrane r 2.0 Update" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
1. RhinoMembrane r 2.0Update reference strategyForm-findingWith Grasshopper A generative modeling environment for Rhinoceros®Gerry D’Anza Architect
2. The Concept of Form Finding in Architecture is a old topic:Used in conjunction with several construction technologies, form-finding is used in many fields for optimal use of material and energy minimizationConcrete bridge from 70‘ Eng. Musmeci , Italy
3. Tensile Structures need to be Form-Found. Geometry and Pre-Stress together make them become Architecture and a widely used construction technology.Car Park CoverArch.Gerry D’Anza , Italy
4. Form-Finding methods:Force Density MethodDynamic RelaxationNon-Linear stiffness Update Reference StrategyNFD Natural force density method…. others
5. TheoryThe theoretical background of Rhino Membrane is provided by the Updated Reference Strategy (URS)for form finding of membrane structures developed by Prof. Kai-Uwe Bletzinger of the TU München (Germany)For a given topology of a membrane structure and given stress state in the structural elements (pre-tension in the membrane and cables), the corresponding equilibrium shape has to be determined.The URS represents a generalization of the well-known force density method.Due to its continuum-mechanical basis, the method is applicable to both cable and membrane elements without any restrictions:E.g. an arbitrary stress state can be specified for the membrane, which can be isotropic in order to generate real minimal surfaces or orthogonally anisotropic, which is very helpful for form finding of textile structures with warp and weft direction.It is even possible to consistently include pressure forces, which are acting always normal to the surface at every state of the procedure, in the form finding process of pneumatic structures such as air-inflated cushions.
6. RhinoMembrane has been developed with in mind a few objectives:Modern state of the art tool for Tensile Structures Form-Finding Fast migration of data to FEA packages with non linear features for structural analysis and verification against design codes.Easy connection to packages for membrane patterning & productionEasy connection to packages for structure design & productionRhinoceros software from McNeel & associates has proven to be the best choice as a host application for the above objectives Objectives
7. Surface Quad-Mesh & Tri-Mesh elements taken in accountWarp & Weft direction set by user via U-V mapping controlCables controlled by pretension or Force Density valueTruss elements controlled by stiffnessConstant,Linear & quadratic stress law specified over the surfaceInternal pressure for pneumaticsFast direct sparse matrix solver Visualization of final stress over the surface & reaction forces at fixed nodesKey Features
8. Concept DesignStructural AnalysisEnvironment impactShading & energyAcoustics & soundPatterningDetailsErection & buildingArchitectEngineerWhy another Form-Finding tool GeometryPre-StressGeometry - Technical feedback
9.
10. RhinoMembrane r 2.0 GH Solver Component
11. RhinoMembrane r 2.0 extPoint Component
12. RhinoMembrane r 2.0 extCurve Component
13. RhinoMembrane r 2.0 extMesh Component
14. Hypar Example
15. Hypar Example
16. Video Examples