Optimization – Karamba3D

Optimization of Column Positions

Beams, Cross Section Optimizer, Octopus, Optimization, Shells

Difficulty: Hard (PRO version only)
The position of inclined columns for a shell roof structure is optimized. This shows how beams and shells are integrated into a single model. 3d shapes are used during the optimization to reduce the columns from intersecting predefined regions. The surface, boxes and region of columns can be altered.

Get the grasshopper definition here: 03_Optimization_InclinedColumnPositions.gh
This example uses Karamba3D 1.3.3 and Octopus for multi-objective optimization.

Optimization of a Shell Bridge

Cross Section Optimizer, Octopus, Optimization, Shells

Difficulty: Moderate
This definition uses Octopus to find the optimal height and width of a concrete shell bridge based on the deflection, weight and height. The octopus component contains some sample iterations. To view in the TRIAL version, set the Mesh Resolution to 6 and the Edge Refinement Factor to 1.

Get the grasshopper definition here: 03_Optimization_ShellBridge.gh
This example uses Karamba3D 1.3.3 and Octopus for multi-objective optimization.

Optimization of Support Positions

Beams, Cross Section Optimizer, Galapagos, Optimization

Difficulty: Simple
This definition uses Galapagos to find the support positions for the minimum deflection of a rectangular grid of beams.
Set the Grid to 2×3 to view in the TRIAL version. The FREE version does not include the cross section optimizer.

Get the grasshopper definition here: 03_Optimization_SupportPositions.gh
This example uses Karamba3D 1.3.3.

Optimization of Truss Diagonals

Beams, Galapagos, Optimization

Difficulty: Simple (FREE/PRO version only)
Here Galapagos is set up to play around with the position of the diagonals of a truss to achieve minimum deflection. Instead of using line geometry to generate the beams, here indices of the points are used to create the beams and supports.

Get the grasshopper definition here: 03_Optimization_TrussDiagonals.gh
This example uses Karamba3D 1.3.3.

Optimization of an Irregular Structure

Beams, Element Felting, Galapagos, Optimization

Difficulty: Moderate (PRO Version only)
A grid of beams is supported at five points. Columns from the base to the roof grid are stitched using Element Felting creating irregularity within the structure.
The position of the support positions is optimized using Galapagos based on the deflection.

Get the grasshopper definition here: 03_Optimization_ShapeIrregularStructure.gh
This example uses Karamba3D 1.3.3.

Export a Simple Parametric Truss to Revit with Rhynamo

Beam Displacement, Beams, Dynamo, Optimization, Revit, Rhynamo

In a simple 3 part tutorial, Junghwo Park explains how to create a single truss in Karamba & Grasshopper and then exporting the geometry into Revit using Dynamo BIM & Rhynamo.

The final tutorial explains how to export the truss that was created in Grasshopper and Karamba and import this into Revit. See Tutorial 1 & 2 – Simple Parametric Truss in Karamba.

Part 3 – Export to Revit

Get the reference files here: KarambaToDynamoBIM_SingleTruss

These tutorials use Rhinoceros (Version 5 SR12 64bit), Grasshopper (0.9.0076), Karamba (1.1.0), Revit (Version 2016) & Rhynamo

Simple Parametric Truss

Beam Displacement, Beams, Cross Section Matcher, Optimization

In a simple 3 part tutorial, Junghwo Park explains how to create a single truss in Karamba & Grasshopper and then exporting the geometry into Revit using Dynamo BIM & Rhynamo.

The first tutorial explains how to set up a truss parametrically and subsequently the following video shows how to analyze the structure in Karamba and then optimize the truss using Galapagos. See Tutorial 3 – Export a Simple Parametric Truss to Revit with Rhynamo

Part 1 – Set up the truss parametrically

Part 2 – Integrate the Truss into Karamba

Get the reference files here: KarambaToDynamoBIM_SingleTruss

These tutorials use Rhinoceros (Version 5 SR12 64bit), Grasshopper (0.9.0076) & Karamba (1.1.0).