Adding Building Core

00:02

SIMON JONES: Co-authoring a structural model

00:04

in Revit creating the super-structure.

00:08

In this adding building core video,

00:10

we're going to present a workflow

00:12

for structural engineers to select which

00:14

walls and floors that are in the architectural model

00:18

are to be considered part of the structural frame

00:21

and copy them over to the structural model.

00:24

During this video, we shall copy monitor the elevator core

00:28

and floor slabs, cut holes in the floor slabs

00:32

to accommodate the elevator mechanism and services riser

00:36

a shaft, add a slab edge to the ground floor concrete slab

00:41

to thicken its perimeter.

00:44

We are working in the small Medical Center.

00:47

And in this 3D view, we are seeing the architect's model

00:50

that is linked in.

00:52

This consists of structural and non-structural objects,

00:57

which a copy of the objects will be

00:59

needed to build a structural model ready for finite element

01:02

analysis.

01:05

From the Collaborate ribbon, select Copy Monitor,

01:09

then choose Select Link and pick the architectural link.

01:14

From the ribbon, select Options, so we

01:17

may choose which family types to use in the structural model.

01:22

First select the Walls tab.

01:25

And we should map just one wall type that we're interested.

01:27

In this case, we shall a map elevator

01:31

wall 12 inch CMU furring and wood planks

01:34

to simply elevator a wall 12 inch CMU.

01:38

Since the furring and wood planks finish,

01:40

applied to the walls not part of the structural model.

01:46

Next, switch to the Floors tab, map generic 12 inch

01:50

to 5 inch concrete and hardwood floor

01:54

to 4 and 1/2 inch in W concrete on 12-inch metal deck.

02:01

Then select Copy in ribbon and select

02:04

each of the walls that define the elevator shaft

02:10

and then select the two main floors.

02:15

Select Finish to complete the copy monitor process.

02:20

The selected walls and floors have been copied

02:22

into the structural model.

02:24

However, they're positioned in the same place

02:26

as the original architect's object I've linked in,

02:30

so it is not easy to make them out.

02:33

In order to differentiate them, we

02:35

should duplicate the current default 3D view

02:39

and rename it to

02:52

Then use Visibility Graphics Overrides dialogue

02:56

to hide the architectural and MEP links in the view

03:00

so that we only see the geometry in the structural model.

03:07

In order to be included in the analysis model,

03:10

new floors and walls need to be flagged as structural.

03:14

First, we select all the new geometry

03:16

and fill throughout just the walls

03:19

and enable structural in the Properties palette.

03:23

Next, we shall select the two floors

03:26

and also enable their structural property.

03:32

Switching to the analytical model view,

03:34

it could be seen that these objects have

03:37

an analytical representation.

03:44

Whilst we have the overall size of the floor slabs

03:47

from the architect, there are a couple

03:49

of significant openings need to be

03:51

made in the floors that will impact the structural analysis

03:54

calculations.

03:56

Therefore, it is necessary to cut some holes

03:58

in the new slabs.

04:01

The first hole we should cut is in the ground floor slab

04:04

underneath the elevator shaft in order

04:06

to accommodate the elevator plate.

04:09

In this case, we shall select the slab in 3D,

04:13

and then choose Edit Boundary from the Modify Floors ribbon.

04:19

Switching to the ground floor view,

04:21

we can view the slab boundary in context

04:23

with the architectural floor plan

04:27

And we can zoom into an area of the elevator shaft.

04:32

Simply trace around the edges of the elevator shaft

04:59

and cut out the redundant edge from the original boundary.

05:09

Notice the coordination monitor alert

05:11

that has highlighted that the sketch is

05:13

different from the version provided by the architect.

05:17

To remain coordinated with the architect,

05:19

take a note to have a review of the change

05:22

in order to maintain consistency between the two models.

05:28

Switching to the 3D structural only view,

05:31

the new opening can be clearly seen under the elevator

05:34

shaft in the ground floor slab.

05:42

We may also want to check for major openings required

05:44

for routing of the MEP services.

05:48

Using Visibility Graphics Overrides,

05:50

temporarily switch to MEP model back on again

05:54

in the 3D structural only view or alternatively create

05:58

another view dedicated to just structural and MEP models.

06:04

Here, we could see the duct rises

06:06

running through the second floor slab

06:08

without an opening in the slab.

06:11

Switching to the second floor view,

06:14

we can zoom into the area of the duct rises.

06:17

And we can clearly see the supply and return ducts.

06:22

In this case, the floor opening will

06:24

be cut using the create shaft opening method.

06:28

From the Architecture ribbon, select

06:31

Shaft from the opening panel.

06:36

For the opening, we should use the rectangular option,

06:39

setting the base constraint to 1 foot

06:42

below the second floor and unconnected height of 3 feet.

06:47

Note, this setting will only cut a hole through the second floor

06:50

slab But in a model where a riser passes

06:53

through several floors, the single shaft opening

06:56

could be set to cut through all the necessary floors.

07:01

Set an offset of 2 inches in the options

07:04

bar so that when we pick the rectangle around,

07:08

the extent of the ducts, the hole

07:10

will be automatically offset with a 2 inch clearance gap.

07:20

Switching back to the 3D view the opening objects

07:24

can now be seen.

07:26

And when unselected, it disappears

07:29

to reveal the opening in slab.

07:34

Use visibility Graphics Overrides,

07:37

this time to switch off the display of the MEP model.

07:43

Switching to an analytical model view,

07:46

two new openings can be clearly seen in the analytical objects.

07:56

There is an extra detail that we would

07:58

like to add to the ground floor slab, that

08:01

is a reinforcing edge.

08:03

From the Structure ribbon, select Slab and then select

08:07

Floor Slab Edge.

08:11

Simply Tab-select the perimeter of the ground floor slab

08:16

and the edge will be added around the out edge of the slab

08:21

as can be seen if we take a look underneath the model.

Video transcript

00:02

SIMON JONES: Co-authoring a structural model

00:04

in Revit creating the super-structure.

00:08

In this adding building core video,

00:10

we're going to present a workflow

00:12

for structural engineers to select which

00:14

walls and floors that are in the architectural model

00:18

are to be considered part of the structural frame

00:21

and copy them over to the structural model.

00:24

During this video, we shall copy monitor the elevator core

00:28

and floor slabs, cut holes in the floor slabs

00:32

to accommodate the elevator mechanism and services riser

00:36

a shaft, add a slab edge to the ground floor concrete slab

00:41

to thicken its perimeter.

00:44

We are working in the small Medical Center.

00:47

And in this 3D view, we are seeing the architect's model

00:50

that is linked in.

00:52

This consists of structural and non-structural objects,

00:57

which a copy of the objects will be

00:59

needed to build a structural model ready for finite element

01:02

analysis.

01:05

From the Collaborate ribbon, select Copy Monitor,

01:09

then choose Select Link and pick the architectural link.

01:14

From the ribbon, select Options, so we

01:17

may choose which family types to use in the structural model.

01:22

First select the Walls tab.

01:25

And we should map just one wall type that we're interested.

01:27

In this case, we shall a map elevator

01:31

wall 12 inch CMU furring and wood planks

01:34

to simply elevator a wall 12 inch CMU.

01:38

Since the furring and wood planks finish,

01:40

applied to the walls not part of the structural model.

01:46

Next, switch to the Floors tab, map generic 12 inch

01:50

to 5 inch concrete and hardwood floor

01:54

to 4 and 1/2 inch in W concrete on 12-inch metal deck.

02:01

Then select Copy in ribbon and select

02:04

each of the walls that define the elevator shaft

02:10

and then select the two main floors.

02:15

Select Finish to complete the copy monitor process.

02:20

The selected walls and floors have been copied

02:22

into the structural model.

02:24

However, they're positioned in the same place

02:26

as the original architect's object I've linked in,

02:30

so it is not easy to make them out.

02:33

In order to differentiate them, we

02:35

should duplicate the current default 3D view

02:39

and rename it to

02:52

Then use Visibility Graphics Overrides dialogue

02:56

to hide the architectural and MEP links in the view

03:00

so that we only see the geometry in the structural model.

03:07

In order to be included in the analysis model,

03:10

new floors and walls need to be flagged as structural.

03:14

First, we select all the new geometry

03:16

and fill throughout just the walls

03:19

and enable structural in the Properties palette.

03:23

Next, we shall select the two floors

03:26

and also enable their structural property.

03:32

Switching to the analytical model view,

03:34

it could be seen that these objects have

03:37

an analytical representation.

03:44

Whilst we have the overall size of the floor slabs

03:47

from the architect, there are a couple

03:49

of significant openings need to be

03:51

made in the floors that will impact the structural analysis

03:54

calculations.

03:56

Therefore, it is necessary to cut some holes

03:58

in the new slabs.

04:01

The first hole we should cut is in the ground floor slab

04:04

underneath the elevator shaft in order

04:06

to accommodate the elevator plate.

04:09

In this case, we shall select the slab in 3D,

04:13

and then choose Edit Boundary from the Modify Floors ribbon.

04:19

Switching to the ground floor view,

04:21

we can view the slab boundary in context

04:23

with the architectural floor plan

04:27

And we can zoom into an area of the elevator shaft.

04:32

Simply trace around the edges of the elevator shaft

04:59

and cut out the redundant edge from the original boundary.

05:09

Notice the coordination monitor alert

05:11

that has highlighted that the sketch is

05:13

different from the version provided by the architect.

05:17

To remain coordinated with the architect,

05:19

take a note to have a review of the change

05:22

in order to maintain consistency between the two models.

05:28

Switching to the 3D structural only view,

05:31

the new opening can be clearly seen under the elevator

05:34

shaft in the ground floor slab.

05:42

We may also want to check for major openings required

05:44

for routing of the MEP services.

05:48

Using Visibility Graphics Overrides,

05:50

temporarily switch to MEP model back on again

05:54

in the 3D structural only view or alternatively create

05:58

another view dedicated to just structural and MEP models.

06:04

Here, we could see the duct rises

06:06

running through the second floor slab

06:08

without an opening in the slab.

06:11

Switching to the second floor view,

06:14

we can zoom into the area of the duct rises.

06:17

And we can clearly see the supply and return ducts.

06:22

In this case, the floor opening will

06:24

be cut using the create shaft opening method.

06:28

From the Architecture ribbon, select

06:31

Shaft from the opening panel.

06:36

For the opening, we should use the rectangular option,

06:39

setting the base constraint to 1 foot

06:42

below the second floor and unconnected height of 3 feet.

06:47

Note, this setting will only cut a hole through the second floor

06:50

slab But in a model where a riser passes

06:53

through several floors, the single shaft opening

06:56

could be set to cut through all the necessary floors.

07:01

Set an offset of 2 inches in the options

07:04

bar so that when we pick the rectangle around,

07:08

the extent of the ducts, the hole

07:10

will be automatically offset with a 2 inch clearance gap.

07:20

Switching back to the 3D view the opening objects

07:24

can now be seen.

07:26

And when unselected, it disappears

07:29

to reveal the opening in slab.

07:34

Use visibility Graphics Overrides,

07:37

this time to switch off the display of the MEP model.

07:43

Switching to an analytical model view,

07:46

two new openings can be clearly seen in the analytical objects.

07:56

There is an extra detail that we would

07:58

like to add to the ground floor slab, that

08:01

is a reinforcing edge.

08:03

From the Structure ribbon, select Slab and then select

08:07

Floor Slab Edge.

08:11

Simply Tab-select the perimeter of the ground floor slab

08:16

and the edge will be added around the out edge of the slab

08:21

as can be seen if we take a look underneath the model.

Try it: Add Building Core

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