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Thread: Electrical conduit hangers

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    Junior Member RAlward's Avatar
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    Electrical conduit hangers

    I am having a problem finding an electrical conduit hanger that will load into Revit 2014. I don't want to create one from the ground up when I can't be the first person to run into this. I have looked and don't see a thread in which this topic is covered. I would ideally like to pick a group of conduit at the same level and auto run, or space, hangers at a set distance. Any help would be greatly appreciated.

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    Senior Member JBZ's Avatar
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    Quote Originally Posted by RAlward View Post
    I am having a problem finding an electrical conduit hanger...
    I think the reason is that these are 'usually' not modeled -Would these be used for clash-detection & quantification, in addition to seeing in the model? Consider the impact and usefulness carefully whatever your choice...

    These guys have a plugin for that: BIM-ME: Automatically Distributes Supports Elements for Networks of Pipes, Ducts and Cable Tray In Revit from BIM-ME -I have not vetted it so test outside a live project first (if you ask me).

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    Junior Member RAlward's Avatar
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    Yes JBZ the reason is Clash-detection, I have to clam the space needed for all the electrical in the project that I am BIMing. Thanks for the info.

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    Forum Addict josephpeel's Avatar
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    We dont draw them because its too much detail/complexity in the model. We usually claim the gross space for installations with a transparent duct or mass that fills the required ceiling void. Depends what stage of the design youre at I guess, but if youre taking account of individual hangers in an early stage of the design thats a bit crazy. If you want to model them use a face/workplane based family that attaches to the cable tray (So it moves with changes, some kind of cable tray fitting might also work). Make the two end ref planes Strong References, so you can use Align to stretch the family to the total length of the tray. Then just repeat a hanger sub-family in an array, with a parameter for hanger seperation. If you want to be able to see the number of hangers in a schedule make the hanger sub-family shared too.

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    Senior Member Tim West's Avatar
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    I have the same question, and wonder why hangers aren't included in Revit? The "too much detail" argument is getting a bit old now, and needs to change.

    Conduit, Ducting, Pipework, and suspended ceilings all require hangers or catenary wires. These can have a serious impact on construction, so need to be included in design if anyone want to start to claim to be "BIMming"

    Emerging (well nearly aging) technology allows projection of points from a model into the real-world to increase accuracy and speed of installation (Link 1 Link 2) and I believe Autodesk are investigating their own version of the same...

    I suppose its time to add a feature request.

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    Administrator Twiceroadsfool's Avatar
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    Autodesk has had their own Point Layout tool since a year and a half ago when they acquired Get The Point.

    Im also not sure if Autodesk has ever given the official reason there are no hangers in Revit as the "too much detail" argument, nor do i think anyone would seriously buy that, considering there are apps from Tools4Revit, and SysQue, and SupportAndHanger, that will all model Hangers. My guess is something more along the lines of: Revit is Design, not fabrication. And while its not a Choice argument, in MEP its still very true. I can draw a 200 foot long pipe or duct in revit, and they dont come that way. Putting hangers on a Revit MEP model is sort of like clash detecting Structure that an architect models, LOL.

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    Senior Member Tim West's Avatar
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    Hey Aaron,

    The too much detail argument is generally coming from users, as they have to deal with slowdown, and diminishing productivity. For a hanger, often all that is required is a 3D line, which is particularly light on performance.

    The design vs fabrication argument also wears thin... I am working on dairy projects and hangers are definitely part of design and an integral part of the interference checking... It is safe to say that for most of the trades, the design and fabrication are the same process.

    As technology and processes evolve the design/fabrication process will continue to get closer. Autodesk are making movements toward RST and RMEP for fabrication with recent purchases, which only reinforces this...

    Fortunately we don't have 'architectural' models... Putting hangers in an MEP model is sort of like trying to 'do' BIM instead of selling its idea.... LOL

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    Administrator Twiceroadsfool's Avatar
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    I dont disagree about Design versus Fabrication. More and more we are just having subs jump in and partner with Design Engineers, and start modeling the Fab model in AutoCAD MEP right away, and we coordinate it Navis. Its not that Revit *cant* do it, but *right now* it doesnt, without a bunch of addons and other stuff. I dont want hangers, i want hangers, real connections, real fittings, real valves, and all of it... And i want it in design. Its great if Autodesk gets there eventually. And when they get there, we will be all in. But right now, they arent there.

    As for users complaining about too much geometry, and slowdown... Id love to see the models in question. We have some BEHEMOTHS. And our models are all run on 1500 dolalr consumer grade machines, and theyre decently fast. Project performance > Model performance.

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    So are you saying that Revit does not have a hanger program like AutoCAD MEP does?
    As a contractor I need to show hangers and yes I know others also asked the same.
    More of a strut hanger like they use with duct. I have used it in AutoCAD MEP for years.
    If they did not add this to Revit SHAME on them!

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    Forum Addict tzframpton's Avatar
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    Quote Originally Posted by Phil Perry View Post
    So are you saying that Revit does not have a hanger program like AutoCAD MEP does?
    As a contractor I need to show hangers and yes I know others also asked the same.
    More of a strut hanger like they use with duct. I have used it in AutoCAD MEP for years.
    If they did not add this to Revit SHAME on them!
    Create your own. Everyone else has.

    Or look into a package that offers all types of fancy hangers, like SysQue. I think you can even find tons of freebies on AutoDesk Seek.

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