How to display values of axial forces in bars on the model view

[James_OBrien2]

When reviewing results of a braced structure is there a way to display the axial loads through each bar in a structure i.e. the maximum force in the local X-Axis of the bar?   It is just that I can only find the ability to view global nodal forces and I want to view the axial force through a diagonal brace.  Thanks in advance for any help you can provide.

@James_OBrien2  Artur Kosakowski edited the topic for better findability and marked

[Artur.Kosakowski]

Hi @James_OBrien2

Do you mean the table results?

[James_OBrien2]

Hi Artur,

Thanks for your response.  I am not looking for tabulated data but rather the ability to view a diagram of the entire structure so I can see a label against each bar in the structure that tells me the local coordinate x,y and z forces with the x-axis value being the axial force equivalent.   This will allow me and the checker of the model to interpret the results with greater ease.  As I mentioned previously I can currently obtain the global x,y and z values at a node but where there are multiple bars meeting at a single node it is not immediately clear what is being transferred through each bar.

Thank you

James

[mustafahesenow]

Hi,

Go to Results tab then diagram for bars selects from loads the load cases to be displayed  then choose for the diagrams Fx forces and from parameters view the values as label or text. See attached picture.

[James_OBrien2]

Thank you Mustafa but I am not sure that is giving me what I want as it is what I have been doing already.

Below is a screenshot of a braced element of the structure and using your method it provides a single value at each node.  However I am interested in the axial force through the highlighted brace only and because at each end there are 4 intersecting bars I would like to be able to distinguish what the local force is in the x-axis for each of the intersecting bars.  I am not sure if that clarifies what I am looking for or not. 

Thanks James

  

[Artur.Kosakowski · Accepted solution]

Hi @James_OBrien2

Like that?

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

[James_OBrien2]

Brilliant- Thank you very much Artur.  Something so simple but I have wasted so much time trying to find out how to do this.

[william_peres8LNVJ]

Hi Artur,

I have followed the steps but I stillcannot see the axial loads. The software ouptut indicates the load is about 3KN whereas I think it should be about 680KN. 

Please see screen shot below and file attached. Are you able to help with the axial load for the diagonal bracings?

Thank you.

Kind nregards,

William 

[william_peres8LNVJ]

How can I load the file into the forum?  It is not accepting .rtd extension

[Rafacascudo]

Axial force is Fx !

Fz is for shear force.

Bar forces are given on local coordinates.

And you have to zip the file before attaching

[william_peres8LNVJ]

Hi Rafael,

Thank you for coming back to me. I must be doing something wrong with the releases of the support then, I have checked the Fx value and it is quite low. Which doesn't appear to be realistic.

I have managed to zip the file, please see attached. I would appreciate if you could check the axial force.

Kind regards,

William 

[william_peres8LNVJ]

sorry, I didn't attached the file

[Simau]

@william_peres8LNVJ 

Try applying roller supports at the end nodes of diagonals

[william_peres8LNVJ]

Hi Simau,

Thank you very much for checking it. I will change my support to see if I can visualise the forces. Thanks a lot!

Kind regards,

William