Revit Structure

Valued Contributor
Posts: 62
Registered: ‎09-22-2012
Message 1 of 3 (291 Views)

"Beam-based" family

291 Views, 2 Replies
01-09-2013 04:37 PM

Is there a way to create such a family?

More to the point, I'm trying to create a prestressed cable family, which goes through a beam on one face and comes out the other. I've already created a certain form of this using a face-based family, but that has many limitations. It only works on straight beams (on a curved beam it would keep going straight), the user needs to input the length value of the cable, etc. It has occurred to me to create a "Prestressed Concrete" beam family which comes with the cable contained within it. This would solve the curved beam issue and the length of the cable will automatically be the length of the beam. This might be a useful implementation, but it also has its limitations. Many times a cable doesn't run the full extent of the beam, coming out somewhere in the middle of the span. In such cases, the cable needs a special anchoring region which usually protrudes out of the face of the beam. Such a case would not be possible with a simple beam family (well, not without creating dozens of different family types for each beam cross-section).

So, is it possible to create such a thing as a beam-based generic family?

Valued Contributor
Posts: 62
Registered: ‎09-22-2012
Message 2 of 3 (222 Views)

Re: "Beam-based" family

01-29-2013 08:00 AM in reply to: pnacht

Sorry to ask again, but...

How does one come to create a XXX-based family? Is it even possible? Can I start from a straight-up generic family and add a base member as one of it's parameters, for example?

Valued Mentor
Posts: 491
Registered: ‎11-01-2011
Message 3 of 3 (196 Views)

Re: "Beam-based" family

02-06-2013 03:37 AM in reply to: pnacht

Hi. This calls for nested families. I'm not sure how far you can go with that, but nested families enable you to place one family into another, and then this one into another and so on. However, you need to be well aware of how to create them and link them together using reporting parameters which may also be custom created shared parameters. Take a look at this issue and let us know if you have any particular question. Regards.

Ali Al-Hammoud
Structural Design Engineer
MZ & Partners Engineering Consultancy
Post to the Community

Have questions about Autodesk products? Ask the community.

New Post
Are You Going To Be @ AU 2014? Feel free to drop by our AU topic post and share your plans, plug a class that you're teaching, or simply check out who else from the community might be in attendance. Ohh and don't forgot to stop by the Autodesk Help | Learn | Collaborate booths in the Exhibit Hall and meet our community team if you get a chance!