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algorithmic modeling for Rhino

Information

Karamba

Karamba is a parametric structural engineering tool which provides accurate analysis of spatial trusses, frames and shells.

Current Version: 1.2.2 (October 6 2016)

Website: http://www.karamba3d.com
Location: Vienna
Members: 810
Latest Activity: 23 hours ago

karamba is an interactive, parametric finite element program. It lets you analyze the response of 3-dimensional beam and shell structures under arbitrary loads.

karamba is being developed by Clemens Preisinger in cooperation with Bollinger-Grohmann-Schneider ZTGmbH Vienna.

Download a free trial now! Licenses for educational or commercial purposes can be purchased at http://www.karamba3d.com/downloads/.

Stay up to date with the development of Karamba by joining our Grasshopper group where you can post your queries, requests or issues for Karamba.

 

downloads, manual:

http://www.karamba3d.com/downloads or

http://www.food4rhino.com/project/karamba

examples (for Karamba 1.2.2):

http://www.karamba3d.com/examples/

update report/known bugs: 
http://www.grasshopper3d.com/group/karamba/page/new-features-and-bug-fixes

Here a beam structure based on stream-lines with bending moments:


 

More details, manual, examples and download ....

 

 

Discussion Forum

Karamba - user problems 149 Replies

please post here in case of karamba problems !Continue

Tags: problems, faq, karamba

Started by karamba. Last reply by karamba 23 hours ago.

Location of the supports in the cross-section

Dear Karamba users,I have a problem with the location of supports in the cross-section of my structure. I have made a simple girder bridge structure consisting of two longitudinal steel girders,…Continue

Tags: section, cross-section, location, cross, supports

Started by Edward Fransen on Thursday.

Tie rod problem

Hi, I try to modelize a bridge with an arch and some tie rods which are not vertical. But my tie rods are not reacting like I wish. So I made very simple model. A top beam that symbolize the arch, a…Continue

Tags: karamba, tie rod

Started by Gregldr on Thursday.

Nonlinear concrete analysis

Hello,Is it possible to modify second-order analysis so that Karamba would use stiffnesses calculated using a custom VB-code block? I'm trying to create a nonlinear concrete column analysis using…Continue

Started by Tuomas Lehtonen Sep 18.

Comment Wall

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Comment by ma qingsong on January 30, 2017 at 6:45am

Hello Márcio,

Thank you for your answer.

Normally I have done as you said. But it's no relate to the thickness of the steel plate. I want to change the thickness of the steel plate to check the displacement of the waffle structure. I uploaded the part of the program. Could you help me finish the program? Thank you very much.

ma20170129.gh

Comment by ma qingsong on January 30, 2017 at 6:36am

Hello Márcio,

Comment by Márcio Sartorelli on January 30, 2017 at 5:54am

Hello Qinsong,

Do you have the steel plate mesh? If you do so you can use the Mesh Load component, setting the vector force to global in negative Z direction (the amplitude of the vector will be the mesh load (kN/m²).

In the component you can set the points of the mesh witch the load will be accounted, try to insert there only the upper nodes of your waffle structure.

Márcio

Comment by ma qingsong on January 30, 2017 at 5:47am

Hello:

I want to know how to make a program and analysis the structure of shell waffle covered with the steel plate.

I want to create the load for the steel plate(6 mm thickness) to check the displacement of the waffle structure.

I uploaded the schematic diagram and part of the program. Any suggestion? 

Please help me.

Thank you very much

Ma

ma20170129.gh

Comment by karamba on January 20, 2017 at 12:16pm

Hello Earth,

use the 'Prescribed Displacement'-component and 'InitialStrain' from the 'Loads'-component to define support settlements and pretension in elements respectively. For details see the manual. It can be downloaded from http://www.food4rhino.com/ or http://www.karamba3d.com/downloads/. Please open a new discussion in case of further questions.

Regards,

Clemens

Comment by Earth on January 20, 2017 at 11:33am

Hello Team Karamba,

I am relatively new to Karamba. I was wondering if Karamba can deal with pretension problems, or support settlement problem where the initial displacement of certain amount takes place that causes forces developed in the truss or frame members. 

Kind Regards.

Comment by karamba on November 14, 2016 at 7:45am

Hi Balaji,

Although we don't have any tutorials relating to voronoi gridshells, the following tutorial explains how to set up a generic gridshell. You can use the same technique to apply it to the voronoi grasshopper setup.
http://www.karamba3d.com/tutorials/tutorials_basics/analyze-a-grids...

Please note that most of the tutorials on our page are not set up by us and rather other users who have been kind enough to share them with us.

Comment by Balaji Visvanath on November 11, 2016 at 5:49am

Hi Matthew,

Thanks for the answer!

Yes, I actually do have a Voronoi Gridshell in Hand, made by myself but the Thing I am looking for is to optimize it (moving the seed points) according to the boundary conditions (loads), which made me stumble upon Karamba.

Do you have any closely related stuff?

Balaji

Comment by karamba on November 11, 2016 at 2:01am

Hi Balaji, we currently do not have any specific tutorials relating to voronoi gridshells, but there are some tutorials on gridshells themselves. Otherwise I am sure there would be a wide range of tutorials in the wider grasshopper community to guide you through setting up a voronoi gridshell.

Matthew

Comment by Balaji Visvanath on November 9, 2016 at 4:07am

Hello Team Karamba,

I am new to Karamba and have just purchased a PRO license (waiting for activation).

I am currently working on Voronoi Gridshell structures for my Master Thesis  and came across a very relevant example on your side. The example is http://www.karamba3d.com/examples/hard/projected-voronoi-pattern-gr....

I am very interested in knowing more about it. Is there any related tutorial ? (i could not find any on the site)

Kind regards,

Balaji

 
 
 

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