Checking Member Releases

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MARTHA HOLLOWELL ORCUTT: Developing

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the Analytical Model in Revit, Checking Member Releases.

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When you are preparing a Revit model

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to be transferred to Robot or other structural analysis

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programs, you need to review the structural member releases

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to verify that they are correct.

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Default releases can cause problems

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with the stability of the model and should

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be specified directly depending on the structural behavior

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of the specific member.

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In this video, we will review how you check

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the analytical member releases.

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I'm working in the small medical center project,

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and in the 3D view, I'm going to zoom in and select

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a structural framing member.

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You can choose multiple elements,

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but they have to be the same type--

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all beams, for example, not beams and braces.

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Now, in Properties, I'm going to expand the list

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and specify specifically the analytical beam part.

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This is one way to verify you're working

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with the analytical elements in a model.

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Next, I'm going to scroll down to the Releases Member Forces

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area, and you can see that I can modify

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the specific forces to release their degree of freedom.

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My end release is set to pend in this example.

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Now I want to open the analytical model

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and select that same beam you can see here.

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I have the same information that's showing up here

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in my Properties, as well.

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Now, let me zoom in on this beam,

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and I'm going to change so that I

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have my thin lines off so I can see

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the colors a little bit better.

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And now you can see, here's this beam,

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and I have the end of my beam and the start

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of my beam color coded.

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This color coding is set up in visibility graphics,

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so I'm going to type VV to open the Visibility Graphic dialog

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box, and on the Analytical Model Categories tab,

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I can expand Analytical Beams and see the end segments.

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I'm going to click on Object Properties,

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and now I can see that the colors for the end

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is set to red and the start is set to green.

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You want to work through each of the elements

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and verify that the start and end releases match

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the need of the model before you export

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the file to Robot or other structural analysis programs.