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Structural Beam Elongates on one of the ends when welded to another Beam

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Message 1 of 4
d.ahmed.hb
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Structural Beam Elongates on one of the ends when welded to another Beam

d.ahmed.hb
Contributor
Contributor

Hello,

 

i have been trying to weld 4 beams to each other. When I weld one end the other side elongates in a really weird manner. Same happens on the other side. I tried multiple times but it does not work out. Any idea as to what could be the error?

 

The error that shows up in Yellow states the following "A corresponding shortening modifier for the start/end extension in the parameters for geometric positioning was created. The start/end extension in the parameters for geometric positioning is no longer available."

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Structural Beam Elongates on one of the ends when welded to another Beam

Hello,

 

i have been trying to weld 4 beams to each other. When I weld one end the other side elongates in a really weird manner. Same happens on the other side. I tried multiple times but it does not work out. Any idea as to what could be the error?

 

The error that shows up in Yellow states the following "A corresponding shortening modifier for the start/end extension in the parameters for geometric positioning was created. The start/end extension in the parameters for geometric positioning is no longer available."

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Message 2 of 4
catalin_lang
in reply to: d.ahmed.hb

catalin_lang
Autodesk
Autodesk

When the steel fabrication data is added, in your case by adding a weld, the steel fabrication shape/body is created.

This representation ignores the beam start/end cutbacks and extension - https://help.autodesk.com/view/RVT/2020/ENU/?guid=GUID-8381A08F-CBCD-4215-AB36-82648C07B8F6

 

What I would do...

1. Adjust the beam length. I don`t see too many reasons to have a long beam shorten that much with a cutback

2. Instead of just welding the beams, use one of the parametric cuts (Steel tab > Parametric cuts panel) to join the beams. These (sub-)connections use only welds and cuts to connect elements and are parametric (adjustable based on changes)

 



catalin.lang


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When the steel fabrication data is added, in your case by adding a weld, the steel fabrication shape/body is created.

This representation ignores the beam start/end cutbacks and extension - https://help.autodesk.com/view/RVT/2020/ENU/?guid=GUID-8381A08F-CBCD-4215-AB36-82648C07B8F6

 

What I would do...

1. Adjust the beam length. I don`t see too many reasons to have a long beam shorten that much with a cutback

2. Instead of just welding the beams, use one of the parametric cuts (Steel tab > Parametric cuts panel) to join the beams. These (sub-)connections use only welds and cuts to connect elements and are parametric (adjustable based on changes)

 



catalin.lang


Message 3 of 4
d.ahmed.hb
in reply to: catalin_lang

d.ahmed.hb
Contributor
Contributor

Hello @catalin_lang, thank you for the response. Sorry for responding late. Is there an explanation as to why the method I used works well in one file and does not in the other?

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Hello @catalin_lang, thank you for the response. Sorry for responding late. Is there an explanation as to why the method I used works well in one file and does not in the other?

Message 4 of 4
catalin_lang
in reply to: d.ahmed.hb

catalin_lang
Autodesk
Autodesk

Can you attach those files? just with these situation each?

At least the one where it works?

 

Thanks!



catalin.lang


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Can you attach those files? just with these situation each?

At least the one where it works?

 

Thanks!



catalin.lang


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