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Thread: Y-shaped Ramp

  1. #1
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    Y-shaped Ramp

    Hi.
    1) May I know if there's any way to do a y-shaped ramp in revit?
    2) if both side have diff gradient. Ie. The blue ramp will end at different level comparing to the yellow one.
    Note the red line is a sloping line.


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  2. #2
    Senior Member Andres Franco's Avatar
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    Quote Originally Posted by tiangtiang View Post
    Hi.
    1) May I know if there's any way to do a y-shaped ramp in revit?
    2) if both side have diff gradient. Ie. The blue ramp will end at different level comparing to the yellow one.
    Note the red line is a sloping line.
    No by using the OOTB Ramp tool I guess, Maybe DYNAMO can achieve this!

    One can imagine doing a double sloped ramp maybe by using a floor with the modify edges active, but I guess it will be complex to do!
    Last edited by Andres Franco; March 5th, 2019 at 01:04 PM.
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  3. #3
    Member mjajansen's Avatar
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    The floor tool can make this.

    Y-shaped Ramp-ramp.png
    Last edited by mjajansen; March 5th, 2019 at 02:37 PM.
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  4. #4
    Forum Co-Founder Alfredo Medina's Avatar
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    One way to do it is this:

    1) In an generic model adaptive template, draw two splines of three points (a and b). Then draw spline "c" of three points hosted on "b". Then draw reference lines "d" and "e". Select "a" and "b" and do Create Form. Select "c", "d", and "e", and do Create Form. Add and Offset value to the two points at the end of the form made with "a" and "b", that determine the high point of the ramp, to create the slope. Load into Project.




    2) Massing and Site, Roof by Face, select the surface. Add parapets as needed, as sweeps along the curves.

    Attached Thumbnails Attached Thumbnails Y-shaped Ramp-2019-03-05_11-25-03.jpg   Y-shaped Ramp-2019-03-05_11-22-36.jpg  
    Last edited by Alfredo Medina; March 5th, 2019 at 03:42 PM. Reason: added info about creating the slope.

  5. #5
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    Quote Originally Posted by Alfredo Medina View Post
    One way to do it is this:

    1) In an generic model adaptive template, draw two splines of three points (a and b). Then draw spline "c" of three points hosted on "b". Then draw reference lines "d" and "e". Select "a" and "b" and do Create Form. Select "c", "d", and "e", and do Create Form. Add and Offset value to the two points at the end of the form made with "a" and "b", that determine the high point of the ramp, to create the slope. Load into Project.




    2) Massing and Site, Roof by Face, select the surface. Add parapets as needed, as sweeps along the curves.

    Thank u so much for taking your valuable time to show the method.
    I will try it out! I am not very familiar with adaptive family. But since you already shown that it'll works, at least I know it can be done if I try hard enough.


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    Forum Co-Founder Twiceroadsfool's Avatar
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    I would go with shape edited roofs or floors. If they have a coincident edge, the shape editing points will even snap to each other as you raise and lower them.

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  7. #7
    Senior Member Andres Franco's Avatar
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    Quote Originally Posted by Alfredo Medina View Post
    One way to do it is this:

    1) In an generic model adaptive template, draw two splines of three points (a and b). Then draw spline "c" of three points hosted on "b". Then draw reference lines "d" and "e". Select "a" and "b" and do Create Form. Select "c", "d", and "e", and do Create Form. Add and Offset value to the two points at the end of the form made with "a" and "b", that determine the high point of the ramp, to create the slope. Load into Project.




    2) Massing and Site, Roof by Face, select the surface. Add parapets as needed, as sweeps along the curves.

    Amazing as always @Alfredo!! thank you for sharing this workaround!! Regards

  8. #8
    Senior Member Andres Franco's Avatar
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    Quote Originally Posted by Twiceroadsfool View Post
    ...shape edited roofs or floors. If they have a coincident edge, the shape editing points will even snap to each other....
    Yes that was my initial thought, never considered the workaround with the roofs!!
    Last edited by Andres Franco; March 6th, 2019 at 07:05 AM.

  9. #9
    Senior Member kamranmirza's Avatar
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    Normally curved ramps have a camber sloping towards the centre of the curve, but I guess Alfredo's method will allow for that too.

    Example below of super-elevation calculation software screenshot [spiral ramp example NOT SHOWN]:
    Y-shaped Ramp-ard_reduced_dbsuperstartform.png
    Image source: Compute & Apply Superelevation
    Last edited by kamranmirza; March 6th, 2019 at 08:46 AM. Reason: Image added

  10. #10
    The Moderator with No Imagination MPwuzhere's Avatar
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    Then we find out OP has Revit LT....

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