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Forums >> Revit Building >> Technical Support >> Complex External Wall Modeling - Urgent Help Needed

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Mon, Dec 13, 2010 at 10:13:29 AM | Complex External Wall Modeling - Urgent Help Needed

#1

SteveHole


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We are currently working for a contactor on a new museum in Portsmouth which has a complex geometric external form.

I originally modelled this as a series of modelled in place sweeps between sets of 2D setting out data produced in AutoCAD which allowed us to replicate the external line of the building. However, the thickness of the external walls varies and is set out perpendicular to the external skin which is constantly varying.

I need some help in finding the best way replicate this in Revit. Although the building is symmetrical down its centre line, the walls constantly vary in their angle relative to the floor.

I assume that that I could form the external wall as a wall element containing the build up required, but how do I get the wall to trace the complex geometric shape?

Stephen Hole

Assicoate - Michael Cook Associates

 


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Mon, Dec 13, 2010 at 1:29:25 PM | Complex External Wall Modeling - Urgent Help Needed

#2

WWHub


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If your walls were constant thickness, you could have done a mass and used wall by face.  But since the walls vary in thickness as well as "leaning" in relation to vertical, I suggest that you model them as in-place families - wall category.

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Tue, Dec 14, 2010 at 5:10:15 PM | Complex External Wall Modeling - Urgent Help Needed

#3

SteveHole


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Thanks for the pointer... Have now created a mass of the external wall (mesh only) and am trying to create a corrisponding wall using Wal to Face. However, the wall is on the wrong side of the mass... Any ideas what I've done wrong?

 

Stephen Hole

Associate - Michael Cook Associates



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Tue, Dec 14, 2010 at 6:51:04 PM | Complex External Wall Modeling - Urgent Help Needed

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Typhoon


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This is clear for you?

 



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Wed, Dec 15, 2010 at 9:48:59 AM | Complex External Wall Modeling - Urgent Help Needed

#5

SteveHole


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Sorry, probably di not make my self clear, if you changeposition of the wall as indicate, when you look at the wall on plan the build up is backwards, ie the internal finish is on the outside of the wall... Any ideas how to swap it around?

Stephen Hole

Associate - Michael Cook Associates

 


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Wed, Dec 15, 2010 at 1:43:59 PM | Complex External Wall Modeling - Urgent Help Needed

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WWHub


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You did not read Typhoons answer correectly.  A wall has a flip switch (which side is in or out) and a wall has a location property.  Typhoon is showing you that you need to change the lacation property when you place the wall.  The wall's location can be based on inside face / outside face / centerline of wall / center of core ... understand?  You assign how the wall is placed in that manner. 

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Wed, Dec 15, 2010 at 2:56:31 PM | Complex External Wall Modeling - Urgent Help Needed

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SteveHole


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Yep... Fully understand that, but it's putting the wall construciton the wrong way round.When I select external face, the external face of the wall build up is against the mass. When I select internal face, it does move the wall inside as shown on Typhoon's post, but the internal face is against the mass. Hence the wall build up is backwards, see attached picture...

Stephen Hole

Associate - Michael Cook Associates

 



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Wed, Dec 15, 2010 at 4:21:52 PM | Complex External Wall Modeling - Urgent Help Needed

#8

lunchtrayrider


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so you maybe built the wall backwards in the type editor?

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Wed, Dec 15, 2010 at 4:58:06 PM | Complex External Wall Modeling - Urgent Help Needed

#9

Space


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I think Steve is saying the location line of the wall isnt the issue, its the way around that Revit is applying the face. 

The location line just defines where the wall is located from the mass face (inner-centre-outer) not the actual facing of the wall (facing inwards - facing outwards).  You do not get a 'flip' switch on a wall created from a mass face when the wall is curved (you do for straight/flat).

Revit will always put the external face of the wall facing outwards, however because your mass is not a solid mass (just face's) Revit has interperated the inside face of the mass as the main face which is incorect for your situation.

The solutuion is to remake the mass as a solid, then when you apply the wall, it should function as expected. I would also clean the mass up a little, its currently very segmented.

Adam (www.Revitspace.co.uk)

 

Edited on: Wed, Dec 15, 2010 at 11:00:31 AM

Edited on: Wed, Dec 15, 2010 at 11:02:55 AM

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Wed, Dec 22, 2010 at 4:15:59 PM | Space

#10

SteveHole


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Sorry for the delay in getting back, been unwell...

Converted the mesh to a solid form and that works fine... Thanks for the help...

Stephen Hole

Associate - Michael Cook Associates


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