Problem with connection steel

[Anonymous]

I can not connect  Sections change Beam with purlin in Revit 2017. Who can help me fix that problem?

[mihai.sandu]

Hello Chien,

Could you, please, upload an image of the situation inside the Revit model. I need to understand what steel connection type you are trying to create and in what place.

Steel Connection for Revit 2017 has around 23 connection types, but none of them can be used to connect a purlin to a beam.

In Steel Connections for Revit 2018 we have a special category of steel connection macros that are able to model the geometry between a beam and a purlin.

Regards,

[Anonymous]

Hi Mihai.sandu

Thanks for your help. This is my image in Model (Revit 2018). But I still can not connect Purlin to Beam. Purlin shape is Z, Section beam is H (Tapered Beam)

[catalin_lang]

You said that the section beam is a H - tapered beam... I think this is the problem. The tapered beam are not supported for steel connections.

The structural steel columns and framing elements need to meet a series of requirements in order to be used in the steel fabrication workflow:

• Non-linear elements are not supported and you are notified by a warning message upon including these type of elements in the fabrication workflow.
• Tapered, compound, welded, cellular and joist elements are not supported and you are notified by a warning message upon including these type of elements in the fabrication workflow.
• Only elements created in families by simple extrusion or sweep are supported. Elements with additional components or openings, defined in the family along elements are not supported.
• The Material for Model Behavior parameter in the Family and Category dialog must be set to Steel.
• The Section Shape parameter in the Family and Category dialog must be set to a supported shape.
• Supported shapes:

  Hot Rolled Steel Section Shapes *The shapes must have all the dimension and detailing dimension parameters.	Pipe Standard
  	I-shape Parallel Flange
  	I-shape Sloped Flange
  	I-shape Wide Flange
  	C-channel Parallel Flange
  	C-channel Sloped Flange
  	I-split Parallel Flange
  	I-split Sloped Flange
  	Structural Tees
  Cold-formed Steel Section Shapes *The shapes must have all the dimension parameters.	Rectangular HSS (cold-formed steel)
  	Round HSS (cold-formed steel)
  	C Profile
  	C Profile with Fold
  	C Profile with Lips

• The shape defined in medium detail level should only contain straight segments and no roundings - roundings should be defined only in fine detail level.
• The shapes of connected elements for medium and fine detail levels must be consistent. Straight segments defined in medium detail level should overlap segments defined in fine detail level. If the shape for the medium detail level is not the same as for the fine detail level, the steel fabrication shape will not be created and you will be notified by a warning message.
• Only sections defined by one closed loop are supported. Compound and welded sections are not supported.
• The outer radius of cold-formed sections should be equal with the sum of the inner radius and plate thickness.

[Ahmed_Muharram]

is it the same in 2022?