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Thread: Part of Beam Profile to Match Slope

  1. #1
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    February 2, 2017
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    Part of Beam Profile to Match Slope

    Looking to create a Beam Profile so that when the Floor Slope Changes the Top of Beam Profile changes and stays attached to bottom of Floor. I have tried to create a Rotation Parameter using a Reference Line (I understand the steps of locking the end of the Reference Line to two Reference Planes) and constraining the top line of the extrusion to that Reference Line, but I get several errors.

    I do not mind if I have to type in the angle for the beam if that is an easier solution, just not sure of the steps.

    Thanks in advance for the Help. Picture attached is sort of what I am trying to achieve.
    Attached Thumbnails Attached Thumbnails Part of Beam Profile to Match Slope-beam-shape.jpg  

  2. #2
    Senior Member
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    December 16, 2010
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    12:33 PM
    for beams like this, I often use a simpler solution than creating an "all purpose" family.
    As you will not be having to create this kind of beam in majority of cases, think about using the "create insitu" component.

    First place a section perpendicular to where you want to place your beam so that in theory, you would see the section you have shown above if it existed in the project. Make sure you note the section reference number you just made so you can use it to draw your profile later.

    Go back to the plan view based on the reference level you wish to create your new beam profile.

    In the structure tab, "component" then "insitu" make sure you classify it as either framing, or foundation (depending on its use, but as its a ground beam I am assuming, make it a foundation) This is important for your schedules later.


    Then you can either make it a sweep, or an extrusion, but in this case as it follows the angle of the slab you are likely to only need to use the extrusion.
    Go to your section view
    Draw your profile (it can be as complicated as you like, but in this case its a beam with a chamfer on the top)
    Set the material to be the same as your slab
    Finish the extrusion

    Job done.

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