Purlin connection problem

[cbakerQD9Q2]

I'm using the structural connections feature in Revit 2018 for the first time. I've modelled lots of connections but can't get the 'single purlin custom cleat connection' to work. I keep getting an error saying "Unknown shape of connected element".

Revit can't recognise the purlin shape. It's a metsec purlin ,loaded of the Revit 2018 library. I've also tried downloading the purlin directly from Metsec but have had the same problem. Please help.

Chris

[p_sankey]

I've got the exact same problem, if you find a solution let know please!

[mihai.sandu]

Hi guys,

In Steel Connections 2018, users can place steel connections on custom profiles. This enhancement uses a shape recognition tool.

The following shapes are not recognized by the tool:

- Z cold formed profiles

- Z with lips cold formed profiles

- L cold formed profiles

- L with lips cold formed profiles

I tested on the Light Gauge Purlin Metsec (Z and C) profiles, from Revit 2018 library. The Z profile is not recognized and steel connections return an "Unknown shape of connected element" warning message.

The C Purlin profiles can be used successfully. 

Regards,

[Anonymous]

How are you.

What connection did you choose for the c channel. I am trying the channel on a I beam rafter and it is not connecting. I have also used the top of the beam as the reference plane.

[mihai.sandu]

Hi @Anonymous,

The connections that you see in the picture that I uploaded are:

Single Purlin Tee, Single Purlin Folded Plate, Single Purlin Angle and Single Purlin Plate.

If you find a situation where these connections are not created, please send me a small rvt file with the beams that are causing the issue.

Regards,

[Anonymous]

Hey, the light gauge sections are not working. I tried the channel shapes and they worked fine. Are you getting the C Section light gauge sections to work. I am using CISC (Canadian) Steel sections.

[Anonymous]

have you ever tried creating your own user defined connections. I feel this may be the way to go.