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Transcript
00:01
SIMON JONES: Co-authoring a Structural Model in Revit,
00:03
Creating the sub-structure.
00:06
In this Adding Bearing Walls video,
00:09
we're going to present a workflow
00:11
for modeling of bearing walls for the building's foundation.
00:16
During this video, we shall Add Bearing Walls
00:19
to start defining the building's foundations,
00:22
and Assign Materials to the model objects
00:26
so they have a consistent concrete specification.
00:29
We are working in the small medical center, which
00:32
has had the building concrete core, and steel
00:35
superstructure, outlined in previous learning path videos.
00:41
Here, in a 3D view, we are seeing
00:43
the part of the superstructure, defined
00:46
as the elevator shaft, concrete floors, and a steel frame.
00:52
We shall add the bearing walls in the ground floor plan
00:54
view, in which the architectural and MEP
00:57
links have been switched off, and we
00:60
use the floor slab and grid lines
01:02
to indicate where the bearing walls should be added.
01:07
From the Structure ribbon, select Wall, then select Wall,
01:11
Structural.
01:14
Set the wall type to, Foundation, 16-inch Concrete,
01:17
in the Properties palette.
01:20
For the location line, we should be butting the wall up
01:23
against the slab, so shall use Core Face, Interior.
01:29
The Base Constraint is set to Top of Footing.
01:32
The top constraint has defaulted to the current level,
01:35
which is the Ground Floor.
01:40
For the draw option, select the Pick Line option.
01:43
That will enable us to snap directly
01:45
onto the edges of the slab with a single pick.
01:50
Starting from the lower-left corner of the slab,
01:53
we shall pick edges to place the bearing wall.
01:56
The wall will automatically clean up at corners, just
02:01
like standard Revit walls.
02:10
At this point, we change the wall type
02:13
to Foundation, 16-inch Concrete, and continue
02:17
adding the wider foundation segments,
02:20
until we are back where we started,
02:23
at the lower-left corner of the slab.
02:34
We're now going to add a new bearing wall for the lower
02:36
level in the building.
02:38
For this, we shall change the location line
02:41
to Core Centerline, so that we can
02:43
align centrally along the grid lines,
02:46
and we shall set the Top Constraint to Lower Level.
02:51
For the Draw option, we shall select Draw Line,
02:55
with Chain enabled in the Options bar,
02:59
so that each new segment starts at the endpoint
03:02
of the previous segment.
03:04
Next, we simply trace the appropriate grid lines
03:08
that define the lower level of the building.
03:15
Switching to the 3D Structural Only view,
03:19
we can see the bearing wall running around the underside
03:23
of the structural model.
03:25
Next, we shall review the materials
03:27
assigned to the various concrete building objects.
03:31
Whilst material assignment is only indicative,
03:34
and could be changed by the structural analysis program,
03:38
it is good practice to assign materials consistently,
03:41
as it impacts how Revit draws details and assigns outlines
03:45
to separate components, such as merging the slab and slab edge,
03:51
in this example, whereas the bearing wall is detailed
03:54
as being separate.
03:57
One good way of spotting inconsistent materials
04:01
is to display the model using the Realistic visual style.
04:07
Zooming into the corner of the building,
04:09
we can clearly see that the floor slab and the bearing
04:13
walls have a different material pattern.
04:17
We shall select Slab, and then Edit Type.
04:23
In the Type Properties dialogue, select the Edit button
04:27
next to the Construction Structure.
04:31
In the Edit Assembly dialogue, we
04:33
see that the slab is constructed from a single component that
04:37
has been assigned Concrete, Cast in Place, gray material.
04:43
We should not change this, so we'll
04:45
cancel out of the dialogs, ready to assign the same material
04:49
to the other concrete objects.
04:53
We shall select the
04:57
and use Edit Type to open the Type Properties dialog
05:00
to review its material properties in the same way.
05:05
Here we can see that the 16-inch bearing wall has been assigned
05:09
the material of Concrete, Normal Weight, 4
05:13
ksi We shall open the Material Browser,
05:20
and change the material to Concrete, Cast-in-place,
05:23
gray, to be consistent with the slab.
05:33
Switching to a callout view, that
05:34
has a detail of a cross-section through the slab
05:38
and the foundation, we notice that the slab edge does not
05:43
include the concrete fill pattern.
05:46
This also indicates that it does not
05:48
have concrete material assigned to it.
05:53
We shall select the slab edge, and use Edit Type
05:56
to review its type properties.
06:01
In the Type Properties dialog, we
06:03
can see that the material is set to By Category.
06:07
Whilst we could simply set the same concrete material,
06:10
here, we shall take this opportunity
06:13
to explain how materials are assigned
06:15
according to their category, so we should cancel this dialog.
06:21
Instead, we shall switch to the Manage ribbon,
06:25
and select Object Styles, which is
06:27
the interface for assigning the material to an object's
06:30
category.
06:34
In the Object Styles dialog, scroll down to, and expand,
06:39
Floors.
06:41
Here we see that slab edges are a subcategory of floors
06:45
and have been assigned the material, Default Floor.
06:51
We shall change this to Concrete, Cast-in-place, gray,
06:55
through the material browser, in the same way as before.
07:00
On OKing this Object Styles dialog,
07:04
the detail is updated to display the slab
07:06
edge with a concrete fill pattern,
07:11
and the slab edge has automatically
07:13
merged with the slab geometry.
Video transcript
00:01
SIMON JONES: Co-authoring a Structural Model in Revit,
00:03
Creating the sub-structure.
00:06
In this Adding Bearing Walls video,
00:09
we're going to present a workflow
00:11
for modeling of bearing walls for the building's foundation.
00:16
During this video, we shall Add Bearing Walls
00:19
to start defining the building's foundations,
00:22
and Assign Materials to the model objects
00:26
so they have a consistent concrete specification.
00:29
We are working in the small medical center, which
00:32
has had the building concrete core, and steel
00:35
superstructure, outlined in previous learning path videos.
00:41
Here, in a 3D view, we are seeing
00:43
the part of the superstructure, defined
00:46
as the elevator shaft, concrete floors, and a steel frame.
00:52
We shall add the bearing walls in the ground floor plan
00:54
view, in which the architectural and MEP
00:57
links have been switched off, and we
00:60
use the floor slab and grid lines
01:02
to indicate where the bearing walls should be added.
01:07
From the Structure ribbon, select Wall, then select Wall,
01:11
Structural.
01:14
Set the wall type to, Foundation, 16-inch Concrete,
01:17
in the Properties palette.
01:20
For the location line, we should be butting the wall up
01:23
against the slab, so shall use Core Face, Interior.
01:29
The Base Constraint is set to Top of Footing.
01:32
The top constraint has defaulted to the current level,
01:35
which is the Ground Floor.
01:40
For the draw option, select the Pick Line option.
01:43
That will enable us to snap directly
01:45
onto the edges of the slab with a single pick.
01:50
Starting from the lower-left corner of the slab,
01:53
we shall pick edges to place the bearing wall.
01:56
The wall will automatically clean up at corners, just
02:01
like standard Revit walls.
02:10
At this point, we change the wall type
02:13
to Foundation, 16-inch Concrete, and continue
02:17
adding the wider foundation segments,
02:20
until we are back where we started,
02:23
at the lower-left corner of the slab.
02:34
We're now going to add a new bearing wall for the lower
02:36
level in the building.
02:38
For this, we shall change the location line
02:41
to Core Centerline, so that we can
02:43
align centrally along the grid lines,
02:46
and we shall set the Top Constraint to Lower Level.
02:51
For the Draw option, we shall select Draw Line,
02:55
with Chain enabled in the Options bar,
02:59
so that each new segment starts at the endpoint
03:02
of the previous segment.
03:04
Next, we simply trace the appropriate grid lines
03:08
that define the lower level of the building.
03:15
Switching to the 3D Structural Only view,
03:19
we can see the bearing wall running around the underside
03:23
of the structural model.
03:25
Next, we shall review the materials
03:27
assigned to the various concrete building objects.
03:31
Whilst material assignment is only indicative,
03:34
and could be changed by the structural analysis program,
03:38
it is good practice to assign materials consistently,
03:41
as it impacts how Revit draws details and assigns outlines
03:45
to separate components, such as merging the slab and slab edge,
03:51
in this example, whereas the bearing wall is detailed
03:54
as being separate.
03:57
One good way of spotting inconsistent materials
04:01
is to display the model using the Realistic visual style.
04:07
Zooming into the corner of the building,
04:09
we can clearly see that the floor slab and the bearing
04:13
walls have a different material pattern.
04:17
We shall select Slab, and then Edit Type.
04:23
In the Type Properties dialogue, select the Edit button
04:27
next to the Construction Structure.
04:31
In the Edit Assembly dialogue, we
04:33
see that the slab is constructed from a single component that
04:37
has been assigned Concrete, Cast in Place, gray material.
04:43
We should not change this, so we'll
04:45
cancel out of the dialogs, ready to assign the same material
04:49
to the other concrete objects.
04:53
We shall select the
04:57
and use Edit Type to open the Type Properties dialog
05:00
to review its material properties in the same way.
05:05
Here we can see that the 16-inch bearing wall has been assigned
05:09
the material of Concrete, Normal Weight, 4
05:13
ksi We shall open the Material Browser,
05:20
and change the material to Concrete, Cast-in-place,
05:23
gray, to be consistent with the slab.
05:33
Switching to a callout view, that
05:34
has a detail of a cross-section through the slab
05:38
and the foundation, we notice that the slab edge does not
05:43
include the concrete fill pattern.
05:46
This also indicates that it does not
05:48
have concrete material assigned to it.
05:53
We shall select the slab edge, and use Edit Type
05:56
to review its type properties.
06:01
In the Type Properties dialog, we
06:03
can see that the material is set to By Category.
06:07
Whilst we could simply set the same concrete material,
06:10
here, we shall take this opportunity
06:13
to explain how materials are assigned
06:15
according to their category, so we should cancel this dialog.
06:21
Instead, we shall switch to the Manage ribbon,
06:25
and select Object Styles, which is
06:27
the interface for assigning the material to an object's
06:30
category.
06:34
In the Object Styles dialog, scroll down to, and expand,
06:39
Floors.
06:41
Here we see that slab edges are a subcategory of floors
06:45
and have been assigned the material, Default Floor.
06:51
We shall change this to Concrete, Cast-in-place, gray,
06:55
through the material browser, in the same way as before.
07:00
On OKing this Object Styles dialog,
07:04
the detail is updated to display the slab
07:06
edge with a concrete fill pattern,
07:11
and the slab edge has automatically
07:13
merged with the slab geometry.
Try it: Add Bearing Walls
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