topic Re: Get structural columns connected to a beam in Revit API Forum

Get structural columns connected to a beam

s.lanuzo — Wed, 07 Mar 2018 20:10:30 GMT

Is there a way to get structural columns connected to beams through the RevitAPI? I'm trying to find a direct way to retrieve the connected columns before I try detecting them instead.

Methods I tried:

StructuralFramingUtils.GetEndReference: returns a reference with an ElementId of -1 unless you manually change the end reference to an edge of the column instead of the bounding box.

LocationCurve.get_ElementsAtJoin: Able to detect structural framing and walls, but not columns.

JoinGeometryUtils.GetJoinedElements: only works for geometry joins.

Re: Get structural columns connected to a beam

RPTHOMAS108 — Wed, 07 Mar 2018 21:47:48 GMT

If the beam has the analytical model enabled then you can get its analytical model and call .GetAnalyticalModelSupports.

My memory of this is that it initially takes some time to check the connectivity of the model. Ordinarily it is easier to see if a point representing the end of a beam is near to a curve (slanted column) or 2D point and within column end level offsets (for vertical column). You have to pick a tolerance based on how bad the drafting is.

Re: Get structural columns connected to a beam

arautio — Wed, 29 Jan 2020 15:36:03 GMT

Any new methods for getting beams and columns that are connected? We disable the analytical model in our template so using that method is not feasible.

Re: Get structural columns connected to a beam

jeremytammik — Thu, 30 Jan 2020 08:25:54 GMT

There are lots of possible way to achieve this.

Probably one of the most immediate would be to implement a filtered element collector that checks for the following criteria:

Quick: beams and columns classes and categories
Quick: bounding box in the area of interest
Slow: intersection filter with the end of the element you seek connections on

Discussions:

Re: Get structural columns connected to a beam

matthias.deisboeck — Thu, 30 Jan 2020 09:34:51 GMT

If the columns are connected to the beam with a SteelConnection you could also read the input objects of the StructuralConnectionHandler.

Re: Get structural columns connected to a beam

HadiMoosavi — Mon, 09 Sep 2024 17:21:39 GMT

But if the beam is not aligned with the coordinate axes, which is probable, since the bounding box or outline are aligned with the coordinate axes, the intersection my include wrong columns.