Forums >> Revit Structure >> Technical Support >> Including Structural Columns in a Model Group

raja15

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Joined: Mon, Feb 21, 2011
84 Posts

Hi there.

I have encountered a problem with a model group I am using in a job at the moment at work.

Basically, it comprises of a set of 4x2 units (which are all the same) that have been placed on the site.  In order to save time, I have grouped 1 set of units which enables me to edit one and have the others change simultaneously.

These units include a few structural columns which provide support for a roof overhang over a deck, and some sun screening.

However, upon grouping all the instances (for one set of units), Revit has come up with this error message:

Group members had to be "moved to the project" (removed from their group instance) because they were not consistent with the group type definition. 

Upon this message arising, some of the columns have been placed outside of the group which I believe shouldn't happen.

I have re-loaded several different column families to see if it is just a problem with one family, however I am still getting the same problem with the other families.

There also seems to be a problem with the columns and their placing on the levels in the group.  Ie I cannot change the Base / Top Level or the Offsets for these levels when the column is inside the model group.

If anybody can assist me with some information regarding this dilemma, it would be greatly appreciated.

Thanks.

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mhans

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Joined: Tue, Nov 7, 2006
456 Posts

This things normally happened when you align andlock objects in your group or objects are attached to a specific level, surface or object. You can also use link instead of group, depending on your requirements.

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raja15

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Joined: Mon, Feb 21, 2011
84 Posts

Thanks for your feedback.

Unfortunately in this circumstance, linking the column back to the file won't work as I need it all to be included in the same (one) group.

Thanks again.

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McMarcus

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Joined: Tue, Jun 24, 2014
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This disscusion obviously happened awhile ago but I was having the same problem today and wanted to share my solution for anyone else like me looking for the answer. I went ahead and created the model group dispite the warning message. Then cut the columns, opened the model group and pasted the columns. I guess cutting and pasting cut the association the columns had with the model and allowed them to live in the group. This wasn't full proof though. A couple of the columns were still excluded from the group. No clue why. I just redrew those inside the group and deleted them out of the model. 

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McMarcus

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One more thing to note. For some reason the group doesn't like columns to be attached to beams. The group wants to kick out all the columns attached top or bottom to beams. So I attached all the columns to get them where I wanted them and then detached all of them. Exited the group and it worked. 

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