Rebar Standee: Shape 125 triangular profile

Rebar Standee: Shape 125 triangular profile

scottjames121
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Rebar Standee: Shape 125 triangular profile

scottjames121
Contributor
Contributor

I'm trying to create a rebar standee family for shape code 125.  I've only been able to create the model lines by tracing over an extrusion in a generic family and pasting it into the rebar family template.  This gives me the correct 3d shape.  However, I cannot add any dimensions beyond the x/y plane.  Has anybody figured out how to correctly create this shape?  

 

Using the Multi-planar option does not create the correct geometry. 

 

Shape-125.png

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ovidiu_paunescu
Autodesk
Autodesk

Hi @scottjames121 

 

Currently, you can only create this bar geometry by using free form rebar.

The resulting bar will only report the total length and not the individual segment lengths, because it cannot match to a Revit rebar shape.

 

One way to create it as free form rebar is to use a Dynamo script where you create the lines and then use a free form creation node to which you feed those lines to produce the bar in Revit.

 

The other way to create the bar in Revit is to use additional geometry and surface distribution free form rebar.

When using this method, free form bars will automatically adjust when making changes to the additional geometry. If the bar is copied with the defining geometry, it will keep it's constraints and react to changes.

 

Here's an example where I've modeled a triangular extrusion with the desired angle of the standee and selected the host and start surfaces as described below.

FFR_selectFaces.png

For the end segments, I'm using hooks. When using surface distribution free form rebar, the hooks are perpendicular to the host surface, so I must rotate one by 90 deg.

Standee.png

To adjust the hook length, I can either set the desired length for the hook type (standard 90 deg in my case)

OR

i can use the recent 2021 feature of overriding hook lengths by instance. 

For this, I need the 00 shape to which the bar is matched to have the hook lengths assigned to some of it's parameters (A, B, C)

HookLengthsShape00.png

For more information see the attached rvt file (saved using Revit 2021).

 

 



Ovidiu Paunescu, M.Sc. Str. Eng.

Sr. Product Owner | Autodesk Revit

Message 3 of 4

dfoth
Advocate
Advocate

Bravo!  🤓

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Message 4 of 4

suskumar
Enthusiast
Enthusiast

Hi @ovidiu_paunescu 

when these kinds of shapes will be added in Revit, it's a serious pain to make through additional geometry or free form. Additionally, along with 25 shape Revit struggle with curve shape as well like shape 10 and 11. Sometimes we can Crete this with correct bending detail in schedule but having a method in which we can pick rebar geometry by using concrete edges and Crete a shape would be added advantage. 

suskumar_0-1755496088136.png

suskumar_1-1755496401021.png

 

 

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