Hi everyone,
I was wondering if there is a way in Karamba to find out the values of the reactions in the single nodes of the structure. I am currently using the FREE version of Karamba 1.3.
Thanks
Hei,
i am actually wondering the same and haven´t find any satisfactory answer yet. The lead that i have so far is to use the Shared nodes component from TTtoolbox to get the ref lines and then get the values somehow with intersect set but i am interested to know if there is an easier way!!
Hi @andrea.basso.13 @augustin.ceillier,
there is a component available in the Trial/Pro version of karamba that outputs the Resultant Forces are all the support nodes as a list of vectors. This is unfortunately not available in the free version.
best,
Matthew
Hei matthew,
Thanks for you answer! I currently have the Pro version of karamba, what is the component name? I wasn´t able to find it on my own.
here are my Karamba License Data:
Karamba 1.3.0 WIP - build 180304
License type: pro
FOR COMMERCIAL USE
Date of expiration: see Zoo license server
Date of issue: 2018-Feb-09
Licensee:
XXX
Best regards,
your Karamba-team
Hi @augustin.ceillier
the component is called âReaction Forcesâ which is in the âResultsâ panel.
Matthew
Great, thanks a lot!
Doing a new edit:
i tried to use the ´Reaction forces´ component, but i seems to give only the reaction of the supports. I would be more interested in getting the values at the nodes. For instance, in a truss, a want to have access to the forces and utilization in the elements coming at a give node which doesnât have to be a support. It would be really useful to check the connections. I found a workaround by sorting the beamsID per node but i was wondering if the was a component doing that already (and probably faster as my definition is taking really long now)
Thanks!!
Hi Augustin,
That is exactly what i was trying to accomplish, to find the reaction at the nodes that connects various beams. Would you be so kind to share the flow that you used on your workaround while we wait to find out if there is a specific component?
Also @matttam, I was thinking on applying for a Student license of Karamba, these kind of nodes are available also for this version?
Thanks
Hi,
There is the BeamForces component which enables you to extract the forces at specific points along the beams. All these features are available in the PRO and Student versions.
best,
Matthew
Hei,
I am basically finding the BeamIDs related to all the BeamAxis connected to the points im interested in by using a cull patter based on the distance from my points to all the beam axis of the model (Quiet big in computation time but if there is a quickest way, i would be glad to know). Then i am getting the index of the closest point of the beam end point to have access to the values from the BeamForces component (it gives at least two values so you need to know which one to use). Below is the definition that i am using. The whole tree manipulation is because i am having several load combinations and i need to have access to the maximum compression value + Moment related, but if you have only one LC, it might be easier!
I couldn´t internalize the data as the project is still under development. Hope it will help!
Reaction at nodes.gh (32.8 KB)
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Hi Augustin,
I am not sure whether I understand correctly what you want to achive.
In case you aim at the resultant moments and forces at a node: If no nodal force or moment or support is defined there, the sum of moments and forces is zero.
In order to get the support forces you can use the âReaction Forcesâ-component.
Best,
Clemens
Hei,
We need to check a welded connection validity between several steel members. To achieve that, we need to have the internal N and M values of the member connected to one node, at the node location. Of course the resultant in going to be 0 but we need to get the repartition of the values, and the cross sections of each member.
Hi Augustin,
now I understand.
No, there is no predefined component for that yet. However this could be a useful feature.
Best,
Clemens
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