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Monday, 11 January 2010

01.2 Primary (Basic) Modelling of Full Height Glass Partitions

For viewers new to this blog, this is a continuing chapter on full height glass partitions. Please read earlier blogs to understand the method which I use to create this type of detail in revit. Also I'm considering buying video recording software and posting videos to cut down the length of the blog, there's a lot of text needed to explain quite simple tasks. Hopefully by the end of the month I'll have a video posted.

Unlike the fancy 3D cut section with all the components modelled in the previous blog, you will generally not model as detailed in a working model, there will be too many custom component and if your design changes it will take hours to update all the specially modelled components. There is however merit for having a separate mock-up file thats purpose is to model a part of your detail to get a great 3D cut section with all the components, it can be a model of only a few feet in length that show exactly what you want and you just take a jpeg image and copy it into your main file once your finished. At the end of the month I'll show you how I modelled the nice 3D view in my first post. For now we'll start off with general working model technique.

First we need to prep the file with a few levels. My preference is 'the more levels the better', but this is not every ones opinion, some people like simpler settings, but this is Revit Detail so we'll go the more detailed route. In effect we will setup 4 levels total, 2 will be Structural Slab Levels(SSL) and 2 will be Floor Finish Levels(FFL).
Normally in new build projects there is an allowance of 3" - 4" of floor finish zone but in this example I'll base it on more of a refurb project where we can only lay down a thin layer of floor finish on an existing slab, this is so that the thresholds with stairs and other parts of the building is kept to a minimum height. Our floor finish is only going to be 1/2" so the distance between our FFL(floor finish level) and SSL(structural slab level) will be pretty small.

The reason why i do the extra levels is because of the following Scenario;
- You only have the main levels (01 Level and 02 Level) 

- The top of the main 8" concrete slab is at the '01 level',
- Then you add a 1/2" of floor finish on top of that, ( you must set 'offsets from level' to + 1/2")
- You then enter in your ceiling at 8'-2" in revit.
- Conclusion, The ceiling will be 8'-2" above the main slab but the distance between the floor finish and the ceiling will be only (8'-1 1/2"), is this what you want? or do you want the gap between the floor finish and the ceiling to be the full 8'-2"?
- See below for a diagram to help explain the different options of levels.

Levels options

- By adding SSL and FFL levels we ease this problem without having to do too many 'offsets from level' instance settings. It also helps to do away with extra height calculations which for me is one of revits strongest features.

  1. Open your office revit template file,
  2. Enter into an elevation view to begin.
  3. You can adjust the existing levels in there or delete them and start fresh
  4. Make 4 levels and views
         (SSL 01 Level) at (-0' - 1/2"),
         (FFL 01 Level) at (0' - 0"),
         (SSL 02 Level) at (12- 5 1/2"),
         (FFL 02 Level) at (12' - 6"),
  5. You should create ceiling view types for both the FFL levels but not the SSL levels
    01 Level Ceiling Plan
    02 Level Ceiling Plan

Main Floor Slabs
  1. Go to the 'SSL 01 Level' plan view
  2. Select the floor tool and enter sketch mode
  3. Edit the floor properties
    - Select '8" Concrete Slab'
    - If you do not have this floor type, select Edit/New, then select duplicate, rename to (8" Concrete Slab)
    - Edit the buildup and make the floor thickness to 0' - 8" and the material 'concrete cast insitu'
    - Select 'ok' until out of the floor properties
  4. Now sketch a square floor about 40' x 40'
  5. Select 'finish sketch'
  6. At this point you should select the floor just drawn and hit ctrl + c to copy it to the clip board.
  7. Navigate to the 'modify' panel on the ribbon and select the 'paste aligned tool' 'select level by name' pick the 'SSL 02 Level' as the level.
  8. Enter a 3d view or draw a section and you'll now see 2 floors. This will give you a base to start with, we'll now draw the walls before drawing the floor finish.

Floor outline and properties

There are several combinations in which we could draw the wall configuration(the glass wall, the adjacent walls and the wall above the glass/ceiling) Below diagram explains the different options.

Wall configuration options

The 3rd option is in my opinion is the best as there is less components. This involves you setting your curtain wall type to 'automatically embed'. To set this

  1. Select the wall tool, then select a curtain wall type
  2. Edit the properties of the wall type, enter into type properties
  3. Under construction, the second option is automatically embed, tick this
  4. Select ok until out of the wall properties

Automatically Embed feature

Now you are ready to draw the walls. First we will place the adjacent wall that will host our glass wall.
  1. Enter the SSL 01 level
  2. Select the wall tool, Select a partition type (5/8" gyp. board either side of a 2-1/2" metal stud)
  3. Set the height to SSL 02 Level
  4. Draw wall in plan as per your design about 40' long
  5. Enter into a 3d view that can see the wall you've just drawn and the upper slab, if you need to turn on the section box in the 3d view to see the objects do so.
  6. Attach feature for wall and slab
  7. Select the wall and then on the ribbon panel select the 'Attach' option, then select 'top' and pick the upper slab in your 3d view. This is so your wall and slab are not clashing, it will also allow you to cut sections with minimal clean up.
  8. Below is a diagram that shows you a messy model and a clean model. It is important to keep the model clean to keep the amount of post production to a minimum.

Messy modelling / clean modeling

Now we will draw the curtain wall. I've set my curtain wall up so that it has a fixed panel distance of 4'-0". We will enter the FFL 01 level to draw this wall to show you a problem with modelling the adjacent wall down to the structural slab level. If you require it, set some reference planes to help you set out your glass wall
  1. Enter the 'FFL 01 Level' plan view
  2. Select wall tool, select curtain wall type (the special one that is set to automatically embed)
  3. Before you draw the wall set the height to unconnected height, enter 8'-2"
  4. Now draw the wall along the center line of the adjacent wall(inside the wall) about 20'(or 5 panels long), once you finish you'll see that the glass wall is now hosted by the adjacent wall.
  5. Move the adjacent wall and see how the glass wall moves with it.
This is all great, the glass wall is effectively like a window component, but with this comes some limitations, it means that the adjacent wall will wrap around all 4 sides of the glass wall including the bottom. If you now look at a section through the walls there will be a 1/2" tall by 3-3/4" wide wall underneath the glass wall, you don't know how annoying this is, it clashes with floor finishes and even appears in plan view if the view range is set to unlimited. To remove this, the best option is to set the bottom offset of the glass wall to -0'-1/2" and set the height to 8'-2 1/2" or draw the glass wall on the SSL level and set the height to 8'-2 1/2". You could also model an inplace family (void) and cut it from the wall(only advised in extreme circumstances). This problem occurs regularly if you model your project correctly ie. having the partition sitting on the structural slab and not on top of a floor finish, it will happen with doors and openings as well unless you model in the door families an extra void to cut the wall etc.. 

Part of partition wall under glass partition
Now I'm going to add a 1"x1" mullion to the bottom of the curtain wall.

  1. Enter into an elevation view facing your wall.
  2. On the home tab under 'build' select the 'mullion' tool
  3. Select or create '1" square', you can modify the 'Rectangular Mullion' to create this.
  4. Place the mouse cursor over the bottom of the curtain wall until the bottom line of the curtain wall highlights. Left click to place
  5. Now check your section to see that the mullion is sitting in the correct location, sometimes the glass panel and mullions have offsets place in their settings which puts them off centre, play with the mullion, glass panel and curtain wall settings until they align correctly.

Mullion placed at base of wall

Floor Finish

We'll Now draw the floor finish
  1. Enter the 'FFL 01 Level' plan view
  2. Select the floor tool from the home tab on the ribbon
  3. Select or create a 0'-1/2" floor finish type
  4. Now sketch your floor finish outline as per your design and when you reach the walls, trace the outline tight to the bottom mullion and adjacent partition wall.
  5. Repeat for floor finish on the other side of the wall

Floor sketch outline against wall

The final part of basic model

  1. Enter the '01 Level Ceiling Plan' ceiling plan view
  2. Select the ceiling tool from the home tab on the ribbon
  3. Select a ceiling type, the type in this case should be a gyp. board ceiling type but it could be another type depending on your design.
  4. Now sketch your ceiling outline as per your design. in this case unlike the floor finish your ceiling outline should only trace the outline of the adjacent partition wall not the inner glass wall.
  5. Repeat for ceiling on the other side of the wall

Ceiling sketch outline against wall

Conclusion of basic modelling
you've now drawn in the elements (1,2,3,4,5,6, 7 and 11) from the original 2D detail (01.1 analysis of glass wall partitions ). These are the main elements that will define your design and use the simplest of the revit tools. They will cover the bulk of the content for your plans, sections and elevation and will act as space holders for all the fine detail components that in theory would be inside some of these bigger objects.

The next blog will be on advanced modelling components and will feature Angled Bracing 


Emre said...

Thanks for your great blog. You not only have great Revit skills, also you have deep understanding of detailing.

Your site contains premium professional training material. Especially for users like me who want to get into revit, but afraid of its capabilities in real life situations.

I just started, amazed already, eager to read out your blog.

A thankful architect from Turkey.

byeonghwan kim said...

Thank you for your lecturing. But I have a little problem. My curtain wall dosen't place at the center of the wall. Did I do something wrong? I drawed it along the center of the adjacent wall.

from Korea,south.

kim, south korea said...

Impressive Revit tutoring. Very thanks. But I have a problem. I followed your process exactly same way. However, I can't place curtain wall at the center of the adjacent wall. I drawed it along the center of the wall but the curtain wall is placed only the edge of the adjacent wall. Do I have to set some other setting option?

Peter McCarthy said...

if you select the glass panel, you may need to hover over the wall and select the tab key a couple of times, go to the type properties of the glass panel and see if there is a value in the offset parameter, if there is reset it to 0. after you place the curtain wall you should be able to move the wall as well, you could do that as a second option.



Kim said...

Thank you very much. I solved the problem. Now I follow your lecture again. Thanks. (Kim,from south korea)

Tony said...

Thank you very much for these awesome tutorials! I have a quick question, its something totally different, but my lines seems to be very dark and thick, When i go into 3d view, the lines are so dark and thick, I cannot see the details when we used the section box. how can i make the lines thinner to where I am able to see the details

Peter McCarthy said...

Hey Tony, thanks for the question, there is 3 ways to get the lines more visible, 1) on the bottom over your view window change the scale from 1:100 to 1:10 or 1:5, this will make the objects appear to be bigger in comparison to the line weight, 2) toggle on and off the temporary line weight under 'view' tab then selecting 'Thin Lines' or you could do the more difficult option of 'object styles'under the 'manage' tab this is where you change the predifined line weight for each object category. Hope this helps,