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Thread: BIM model IFB vs IFC

  1. #1
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    Default BIM model IFB vs IFC

    I have issue how I can catch difference between issue for bid revit model and issue for construction, I need to recognize difference so I can track contractor variation order and claim
    I should catch all difference and quantify.
    I need advice how I can do that

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    Mod / Salary / SM Wanderer's Avatar
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    Default Re: BIM model IFB vs IFC

    Quote Originally Posted by archwass812148 View Post
    I have issue how I can catch difference between issue for bid revit model and issue for construction, I need to recognize difference so I can track contractor variation order and claim
    I should catch all difference and quantify.
    I need advice how I can do that
    Hi there! I've moved your post from the 'information request' forum to this Revit forum, as I believe it will be better served here.
    Feel free to scroll down to see the 'Similar Threads' feature, which could help you find answers.
    Melanie Stone
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    Certifiable AUGI Addict tedg's Avatar
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    Default Re: BIM model IFB vs IFC

    If I'm reading your question right, you want to know how to capture any changes from IFB (issued for bid) to IFC (issued for construction)?
    This is usually done with revision clouds around the changes with the revision status.

    For us, the first stamped set that goes out is revision "0" (zero), in this case would be "ISSUED FOR BID".
    The next submission, if anything changed, they would be rev-clouded with the "1" delta, , in this case the revision status would read "1" "ISSUED FOR CONSTRUCTION"

    And then continue from there, if other modifications or changes are made and submitted, they continue to the next number with the rev status and clouds (turning off previous clouds).

    Hope that helps

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    Default Re: BIM model IFB vs IFC

    Basically, the IFC is reflecting bidder’s queries in the IFB stage. It would be helpful if you refer to the responses in the tracker sheet for the changes. And as @tedg mentioned, it should be rev-clouded in the IFC sheets with triangle tag referring to Revision number.
    And in terms of Revit model, you can use the Compare models tool in Navisworks to find the differences.

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