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Thread: Custom Wall around Steel Column

  1. #1
    Som
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    Custom Wall around Steel Column

    Hi,

    I am drafting from a very old hand drafted pdf drawing, refer attached clip 1. As the clip 1 shows, I need to create a cavity wall which angles out to incorporate the steel column.

    I have tried doing this as per clip 2 attached by making an angled wall sweep to attach to cavity double wall at the column location. But I cannot stop and start the internal brick leaf as per clip 1.

    The angled wall is the interior side of the wall shown in plan view. Please advise how should I proceed to make this work? Thanks.
    Attached Thumbnails Attached Thumbnails Custom Wall around Steel Column-1.jpg   Custom Wall around Steel Column-2.jpg  

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    Assuming the hatched wall is some for of masonry (block or brick), I'd use two separate walls for the wythes instead of one wall with two wythes in it.
    stevenpapke likes this.

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    Forum Co-Founder Twiceroadsfool's Avatar
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    Quote Originally Posted by Som View Post
    Hi,

    I am drafting from a very old hand drafted pdf drawing, refer attached clip 1. As the clip 1 shows, I need to create a cavity wall which angles out to incorporate the steel column.

    I have tried doing this as per clip 2 attached by making an angled wall sweep to attach to cavity double wall at the column location. But I cannot stop and start the internal brick leaf as per clip 1.

    The angled wall is the interior side of the wall shown in plan view. Please advise how should I proceed to make this work? Thanks.
    Model your CMU backup wall as a separate wall type from the veneer, and this (along with a bunch of other stuff) becomes way easier.

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    Som
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    Thanks Chris and Aaron, that's what I thought would need to do. Cheers.
    Last edited by Som; May 25th, 2018 at 03:04 PM.

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    If you had a bunch of locations where this occurred, could you not use an architectural column family? It's an alternate approach, but frankly it's a quick family build....an extrusion for the brick wythe, and a void to cut out a portion of the air gap beyond. Granted you'd have a little bit of linework cleanup afterwards, but the pilaster would be a consistent dimension and easy to copy around (align to grids).

    Jon
    Attached Thumbnails Attached Thumbnails Custom Wall around Steel Column-column-1.jpg   Custom Wall around Steel Column-column-2.jpg  

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    Senior Member Robin Deurloo's Avatar
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    You would have to do some trickery to get the numbers on the walls right as it will not show up in your wall schedule if you make it a column. I would go for separate wall for sure.

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    Quote Originally Posted by Robin Deurloo View Post
    ...to get the numbers on the walls right...
    Not sure I understand what you mean by numbers, Robin. You referring to take-offs, or tagging of walls?

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    Senior Member Robin Deurloo's Avatar
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    I mean that if you make the wall as a column it does not count it as a wall and therefore your wall schedule would be wrong. This might not be a problem as it is an existing building, but maybe you need the area of wall that needs to be painted, or plastered and then it would give you a wrong number.

    But in general it is better practice to split up walls into their separate components, as Aaron says in his post. You might think it is more work to do so, but in the end you will end up with all sorts of tricks and workarounds to get a combined wall to work which take up a lot of time, your example being just one of them.

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    Yeah, i was thinking you were talking about area take-offs. I'm not saying this is the case for all architects, but for us, knowing the area is meaningless information. The contractor or our hired cost estimator might want to know that number....but we don't, especially for this level of minutia. The extent of our wall schedules is to identify the type mark, or wall board used. Nothing more.

    Jon


    p.s. mods -- wouldn't this thread be better located in arch>general instead of Out There?
    Last edited by kingjosiah; May 28th, 2018 at 06:43 AM. Reason: added p.s.

  10. #10
    Senior Member Robin Deurloo's Avatar
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    True, but if you are working on a project in BIM at some point somebody wants to know the m2 of the wall and depending on contracts etc. it might be you that is going to have to adjust this to get the right numbers. And if you have a cost estimator, wouldn't it be a good idea to give him the numbers (with a push of a button as they say) instead of him going over the project with a ruler for a week? I mean that would make him a week cheaper and will give you a way to make a few extra bucks for having stuff modeled the right way.

    my 2 cents

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