Automatic Light Gauge Steel Frame Creator And Panelizer macro

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thschrader
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby thschrader » Wed Jan 10, 2018 2:31 pm

thschrader
Posts: 1416
Joined: Sat May 20, 2017 12:06 pm
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby thschrader » Thu Jan 11, 2018 5:20 pm

Hi Umberto,
you can use shell elements for FEM-calculation directly generated from the solid.
It is not necessary to extract faces from solid. When adding *BUCKLE 1 to the
input deck, you can run a buckling-analysis. Test-file with cleared mesh:
shellTest.FCStd
(188.33 KiB) Downloaded 28 times
You should enable "split writing of *.inp" in Preferences/FEM
When using the pipeline tool you should enable "enable backlight colour" in Preferences/Display
for a better viewing.
buckle1.JPG
buckle1.JPG (16.04 KiB) Viewed 1009 times
fandaL
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby fandaL » Thu Jan 11, 2018 9:54 pm

thschrader wrote:
Thu Jan 11, 2018 5:20 pm
Hi Umberto,
you can use shell elements for FEM-calculation directly generated from the solid.
It is not necessary to extract faces from solid.
...
shellTest.FCStd
In this way (Mesh element dimension = 2D set for meshing) GMSH gives shells, but that are shells on the original solid surfaces. So your model contains something as "double profiles".
It's hard to catch it on a printscreen - you can check it by using Clipping plane and zooming on the mesh.
thschrader
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby thschrader » Thu Jan 11, 2018 10:46 pm

fandaL wrote:
Thu Jan 11, 2018 9:54 pm
It's hard to catch it on a printscreen - you can check it by using Clipping plane and zooming on the mesh.
Hi fandal,
did the same procedure with a solid cube.
cube_buckling.FCStd
(7.75 KiB) Downloaded 29 times
cube_shells.JPG
cube_shells.JPG (126.83 KiB) Viewed 982 times
buckling.JPG
buckling.JPG (124.93 KiB) Viewed 982 times
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bernd
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby bernd » Fri Jan 12, 2018 6:19 am

right click on the mesh --> mesh informations prints a pop up with the mesh details. Another possibility is the data tab of the property editor when the mesh is selected. Ther the mesh details are printed too. There you can see if a mesh has volumes.

fandaL is right in this case the analysis is don with the whole surface off the profile.
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hhassey
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby hhassey » Sat Jan 20, 2018 3:04 am

The structural switch is ready!!!

Thanks to Polaris for her contribution to this.

Just turn the Structural property to True and adjust your parameters as needed
freecad.png
freecad.png (193.14 KiB) Viewed 870 times
Box= True, The beams form a box otherwise they form an I beam

You can grab a copy of the latest version as always: Here:
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bitacovir
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby bitacovir » Sat Jan 20, 2018 2:01 pm

hhassey wrote:
Sat Jan 20, 2018 3:04 am
The structural switch is ready!!!

Thanks to Polaris for her contribution to this.

Just turn the Structural property to True and adjust your parameters as needed

Box= True, The beams form a box otherwise they form an I beam

You can grab a copy of the latest version as always: Here:
It is nice hhassey. But a structural frame should look like this:
structural_frame.png
structural_frame.png (202.35 KiB) Viewed 846 times
::bitacovir::
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hhassey
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby hhassey » Sat Jan 20, 2018 7:58 pm

bitacovir wrote:
Sat Jan 20, 2018 2:01 pm
It is nice hhassey. But a structural frame should look like this:
Thanks for pointing that out, and taking the time to make a drawing. it seems to me that if you place a beam all along the top of the assembly then the one on top of the window opening is not needed, it is redundant. I am basing the design on the attached paper:

Anyways, I will fix the double studs that you mention. and keep the beams as the attached paper shows. I still have a little bug to fix on the box beam, (they should be as wide as the whole frame!)

The ball is rolling!
Attachments
9004_f.pdf
(127.83 KiB) Downloaded 36 times
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bitacovir
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby bitacovir » Sat Jan 20, 2018 10:34 pm

hhassey wrote:
Sat Jan 20, 2018 7:58 pm

Thanks for pointing that out, and taking the time to make a drawing. it seems to me that if you place a beam all along the top of the assembly then the one on top of the window opening is not needed, it is redundant. I am basing the design on the attached paper:

Anyways, I will fix the double studs that you mention. and keep the beams as the attached paper shows. I still have a little bug to fix on the box beam, (they should be as wide as the whole frame!)

The ball is rolling!
mmmmm. Yes and No. The truth should be "it depends...". A beam only on windows and doors is the minimum structure. It is ok in many cases. But in other circumstances, you should use a top beam along the whole wall. My country (Chile) is a seismic country with a lot of earthquakes. Here, you MUST consider beams and columns for each wall and a reinforcement frame for each opening (windows and doors). Therefore, "it depends...". In this case, It depends on how far you want to go with the features of your macro. I know it is a lot of work. Anyway, thanks for the tool.
Attachments
construccion-seco.jpg
construccion-seco.jpg (116.27 KiB) Viewed 805 times
Last edited by bitacovir on Sat Jan 20, 2018 10:48 pm, edited 1 time in total.
::bitacovir::
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hhassey
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Re: Automatic Light Gauge Steel Frame Creator macro

Postby hhassey » Mon Jan 22, 2018 6:50 pm

bitacovir wrote:
Sat Jan 20, 2018 10:34 pm
mmmmm. Yes and No. The truth should be "it depends...". A beam only on windows and doors is the minimum structure. It is ok in many cases. But in other circumstances, you should use a top beam along the whole wall. My country (Chile) is a seismic country with a lot of earthquakes. Here, you MUST consider beams and columns for each wall and a reinforcement frame for each opening (windows and doors). Therefore, "it depends...". In this case, It depends on how far you want to go with the features of your macro. I know it is a lot of work. Anyway, thanks for the tool.
I guess the macro should be broken down into several macros, i.e. one that does a stud, another a track and so on... so that you can start with the automatic macro and then fine tune your design by hand if needed. I want to make it as real life usable as possible...

Seismic Country.... Actually for seismic we need to incorporate diagonals, but, who in his right mind tries to use light gauge as a shear wall?
that does not make a lot of sense to me, but putting those diagonals by hand is very easy right now!