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Folding Facade - Understanding structure members

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    Folding Facade - Understanding structure members

    HI Guys
    I am wondering how successful anyone had been in the full documentation of a folded facade system.
    Below is an example

    The basic shape would be built on Massing (easy enough), and potentially the structure behind may be driven by adaptive components.
    In these situations, some of the difficulties, are what is driving what.
    IE. is the Structure driving the Facade offset,
    is the Facade driving the structure offset.
    The other item is; when you have 3 or more folded faces, a set offset doesn't always form a true node point. Mush of these are design issues, however we need to be able to model it in Revit to assist in design resolution and eventually documentation.

    Has anyone managed to use Adaptive Components to locate the structure and determine its orientation/rotation (Assuming the design is not using circular sections).

    Brian Renehan

    Melbourne, Australia - BIM Consultant -

    We have been using Revit for folded facades and it's been pretty successful. Of course you will need lot more planning but you can achieve pretty much everything in terms of full documentation, i.e. unfolded elevations of each facet, setting out etc.

    Whether structure drives the facade offset or facade drives the structure offset largely depends on your project/design parameters and facade contractor's means/methods. It could work in both ways.

    See attached image of a portion of a folded facade showing only primary structure. Structure joint at nodes is a design element and in most cases that decision happens later in the process when facade contrctor is on board. I normally leave some (say 300mm) gap between facets for primary structure elements and later when it is decided I fill the gap with adaptive elements (non circular, shown in red line, for example).

    As you have noted, a set offset doesn't always work specially when you have valleys and ridges in your facades so you end up with some unique nodes situations.

    110715_Structure_C Channel.JPG
    Pfaulder | London, UK


      Since Revit 2011, we started documenting folded facades in Revit. However, the preliminary design and shop drawings are done in other software. Usually a designers uses Rhino or 3ds max to cut the faces, pulling/pushing the edges and vertices into place. Revit has an ad egde/profile tool but it's very limiting.


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