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  • Robot Structural Analysis Professional

Create wall foundation family types

Create new family types for retaining walls and strip footings.


00:03

All foundations can either be bearing or retaining.

00:07

This is controlled with the structural usage family parameter.

00:10

A bearing wall foundation would always be centered about the

00:13

wall and have a simple width and foundation thickness.

00:17

However,

00:17

a retaining wall foundation has the addition of a

00:20

hill and toe length which can provide eccentricity.

00:24

Wall foundations can have a default end extension length set

00:27

to control the projection of the foundation beyond the wall.

00:31

This can also be overridden for each instance with the end control grips,

00:36

all foundations have the option to be broken at inserts if required,

00:40

this will force the foundation to stop when a door

00:43

or window is leveled with the bottom of the wall.

00:47

It's also worth remembering that the default and extension link,

00:54

let's begin by opening up the structural plan site

00:58

in the project browser under structural plans. Go ahead and open up the sites plan.

01:03

We'll begin by changing the properties of our wall foundation along grid. A

01:08

let's zoom up on this wall foundation in here

01:12

and we'll begin by selecting our wall foundation

01:16

in the properties pallet in the type selector.

01:18

We'll note here that this current wall foundation is bearing footing,

01:25

Let's now select edit type

01:27

in the type properties dialog box.

01:29

We'll select duplicate to create a new wall foundation type

01:33

here. We would amend the name.

01:35

This will become 36 inch by 36 inch here and I'll just remove the two at the end.

01:41

And now if we look under dimensions,

01:43

we can see that we have a width which is currently set to 3 ft.

01:46

And here we have a foundation thickness of 1 ft.

01:50

I'm going to change this to 3 ft.

01:53

Also notice here we have a default end extension length.

01:57

It's quite usual for a wall foundation to

01:60

extend beyond the footprint of our structural wall.

02:03

So here I'm going to set this to six inches.

02:06

Also,

02:07

we want to ensure here that the foundation is using the correct grade of concrete.

02:11

So here you can see that we have our structural

02:12

material which is currently concrete cast in place gray.

02:16

We'll select this and here we'll select the

02:19

browse button to go into the materials browser

02:22

in the materials browser.

02:24

We'll select concrete normal weights for K si and select OK.

02:30

We can now select OK to the type properties dialog

02:32

box and we can clearly see our wall foundation change.

02:36

Notice the extension beyond the wall footprint.

02:39

Let's also investigate this in the 3d view.

02:42

We'll select 3D foundations

02:45

and we'll now rotate the view round and we can now clearly see our foundation has

02:50

got deeper and it's also used in the same concrete grade as our other foundations.

02:57

Ok. Let's now investigate another wall foundation.

02:60

While we're in the 3d view,

03:01

you can see here where we have this wall and the door opening,

03:05

we have our wall foundation underneath.

03:06

But notice that the wall foundation is broken about the door opening.

03:11

This is not normally desirable. So let's see how we can amend this.

03:15

We'll select the wall foundation

03:17

and in the property's pallet in the type selector,

03:20

you'll note here we're using bearing footing 36 inch by 12 inch.

03:24

Let's select edit type

03:27

in the type properties dialog box.

03:29

The first thing we'll do is change the grade of concrete.

03:32

So once again, we can browse to the materials browser

03:35

and here we can choose our four K si concrete grade

03:39

and select. Ok.

03:41

Notice under dimensions we have do not break inserts.

03:45

We're going to select that by putting a check into the check box and selecting. Ok.

03:50

You'll now notice that the foundation is no longer broken about the opening.

03:55

The wall foundation can break if we have a door or a window at the bottom of the wall.

03:60

Ok. Let's now return back to our sight plane

04:04

in the site plan. We'll zoom up on that same wall configuration

04:08

and we can see here. Currently, this is a concrete wall.

04:11

Let's select that wall and in the properties pallet in the type selector,

04:15

we're going to swap this out for brick on metal stud.

04:19

So we'll go ahead here and select brick on metal stud.

04:24

Now, of course,

04:24

here you can see that the war foundation is still remaining centered about that war

04:29

on the view control toolbar. I'm going to change the detail level from course to fine

04:34

and we can clearly see here that on this composite wall, we have brick work over here,

04:38

but then the rest of it is metal studding.

04:41

Ideally, we want the foundation to be centered about the brick work.

04:45

So what we're going to do here is select the foundation.

04:48

If we look at the instance, properties, we can see here that we have eccentricity.

04:52

So here I'm going to set this

04:54

to 0.41 and that's now the center of our brick wall.

04:59

Of course,

04:59

this still wants to be a bearing footing as opposed to a retaining footing.

05:03

But you can see here with the in instance, property,

05:05

we can simply shift that foundation around the center line of the wall.

05:10

Also note that we have a number of read only dimensions such as length, width,

05:14

elevation at top elevation at bottom and volume.

05:17

These can of course appear in schedules if desired.

05:21

Finally, we'll take a look at our retaining wall foundation.

05:24

So let's go ahead and select one of these foundations here.

05:27

And if we go ahead into the properties pad it and select edit type,

05:31

we can clearly see here that we have structural usage.

05:34

This can either be set to bearing or retaining.

05:37

If I set this one to bearing, you'll notice.

05:40

Now the dimensions change and we have now a width and a foundation thickness.

05:45

Of course, here, that foundation would then be centered about the wall.

05:49

If I change this to a retaining footing,

05:52

you can see here that we get a toe length hill length and our foundation thickness,

05:57

this automatically creates an eccentric foundation,

06:00

but the structural usage is still set to retaining.

06:04

OK. Go ahead and select. OK.

06:06

Finally,

06:07

we'll look at how we can use the instance

06:08

properties to change the length of the foundation.

06:11

So here I'm going to select this wall foundation

06:14

and notice here that we have a grip at each end of the wall foundation.

06:18

Now we've just seen that if we edit the type properties,

06:20

we can change the default to end extension length.

06:23

But what I might want to do is change that just for one wall foundation.

06:27

So here you can see that we have this grip at the end of the wall foundation,

06:31

I can simply drag this to change the length.

06:34

So in this example, here, I might be looking at 18 inches or obviously 1.5 ft

06:39

and you can now see the wall foundation has extended.

06:42

OK.

06:43

So in summary,

06:44

you can see that we have many tools to

06:45

change the type and instance properties of our wall foundation

Video transcript

00:03

All foundations can either be bearing or retaining.

00:07

This is controlled with the structural usage family parameter.

00:10

A bearing wall foundation would always be centered about the

00:13

wall and have a simple width and foundation thickness.

00:17

However,

00:17

a retaining wall foundation has the addition of a

00:20

hill and toe length which can provide eccentricity.

00:24

Wall foundations can have a default end extension length set

00:27

to control the projection of the foundation beyond the wall.

00:31

This can also be overridden for each instance with the end control grips,

00:36

all foundations have the option to be broken at inserts if required,

00:40

this will force the foundation to stop when a door

00:43

or window is leveled with the bottom of the wall.

00:47

It's also worth remembering that the default and extension link,

00:54

let's begin by opening up the structural plan site

00:58

in the project browser under structural plans. Go ahead and open up the sites plan.

01:03

We'll begin by changing the properties of our wall foundation along grid. A

01:08

let's zoom up on this wall foundation in here

01:12

and we'll begin by selecting our wall foundation

01:16

in the properties pallet in the type selector.

01:18

We'll note here that this current wall foundation is bearing footing,

01:25

Let's now select edit type

01:27

in the type properties dialog box.

01:29

We'll select duplicate to create a new wall foundation type

01:33

here. We would amend the name.

01:35

This will become 36 inch by 36 inch here and I'll just remove the two at the end.

01:41

And now if we look under dimensions,

01:43

we can see that we have a width which is currently set to 3 ft.

01:46

And here we have a foundation thickness of 1 ft.

01:50

I'm going to change this to 3 ft.

01:53

Also notice here we have a default end extension length.

01:57

It's quite usual for a wall foundation to

01:60

extend beyond the footprint of our structural wall.

02:03

So here I'm going to set this to six inches.

02:06

Also,

02:07

we want to ensure here that the foundation is using the correct grade of concrete.

02:11

So here you can see that we have our structural

02:12

material which is currently concrete cast in place gray.

02:16

We'll select this and here we'll select the

02:19

browse button to go into the materials browser

02:22

in the materials browser.

02:24

We'll select concrete normal weights for K si and select OK.

02:30

We can now select OK to the type properties dialog

02:32

box and we can clearly see our wall foundation change.

02:36

Notice the extension beyond the wall footprint.

02:39

Let's also investigate this in the 3d view.

02:42

We'll select 3D foundations

02:45

and we'll now rotate the view round and we can now clearly see our foundation has

02:50

got deeper and it's also used in the same concrete grade as our other foundations.

02:57

Ok. Let's now investigate another wall foundation.

02:60

While we're in the 3d view,

03:01

you can see here where we have this wall and the door opening,

03:05

we have our wall foundation underneath.

03:06

But notice that the wall foundation is broken about the door opening.

03:11

This is not normally desirable. So let's see how we can amend this.

03:15

We'll select the wall foundation

03:17

and in the property's pallet in the type selector,

03:20

you'll note here we're using bearing footing 36 inch by 12 inch.

03:24

Let's select edit type

03:27

in the type properties dialog box.

03:29

The first thing we'll do is change the grade of concrete.

03:32

So once again, we can browse to the materials browser

03:35

and here we can choose our four K si concrete grade

03:39

and select. Ok.

03:41

Notice under dimensions we have do not break inserts.

03:45

We're going to select that by putting a check into the check box and selecting. Ok.

03:50

You'll now notice that the foundation is no longer broken about the opening.

03:55

The wall foundation can break if we have a door or a window at the bottom of the wall.

03:60

Ok. Let's now return back to our sight plane

04:04

in the site plan. We'll zoom up on that same wall configuration

04:08

and we can see here. Currently, this is a concrete wall.

04:11

Let's select that wall and in the properties pallet in the type selector,

04:15

we're going to swap this out for brick on metal stud.

04:19

So we'll go ahead here and select brick on metal stud.

04:24

Now, of course,

04:24

here you can see that the war foundation is still remaining centered about that war

04:29

on the view control toolbar. I'm going to change the detail level from course to fine

04:34

and we can clearly see here that on this composite wall, we have brick work over here,

04:38

but then the rest of it is metal studding.

04:41

Ideally, we want the foundation to be centered about the brick work.

04:45

So what we're going to do here is select the foundation.

04:48

If we look at the instance, properties, we can see here that we have eccentricity.

04:52

So here I'm going to set this

04:54

to 0.41 and that's now the center of our brick wall.

04:59

Of course,

04:59

this still wants to be a bearing footing as opposed to a retaining footing.

05:03

But you can see here with the in instance, property,

05:05

we can simply shift that foundation around the center line of the wall.

05:10

Also note that we have a number of read only dimensions such as length, width,

05:14

elevation at top elevation at bottom and volume.

05:17

These can of course appear in schedules if desired.

05:21

Finally, we'll take a look at our retaining wall foundation.

05:24

So let's go ahead and select one of these foundations here.

05:27

And if we go ahead into the properties pad it and select edit type,

05:31

we can clearly see here that we have structural usage.

05:34

This can either be set to bearing or retaining.

05:37

If I set this one to bearing, you'll notice.

05:40

Now the dimensions change and we have now a width and a foundation thickness.

05:45

Of course, here, that foundation would then be centered about the wall.

05:49

If I change this to a retaining footing,

05:52

you can see here that we get a toe length hill length and our foundation thickness,

05:57

this automatically creates an eccentric foundation,

06:00

but the structural usage is still set to retaining.

06:04

OK. Go ahead and select. OK.

06:06

Finally,

06:07

we'll look at how we can use the instance

06:08

properties to change the length of the foundation.

06:11

So here I'm going to select this wall foundation

06:14

and notice here that we have a grip at each end of the wall foundation.

06:18

Now we've just seen that if we edit the type properties,

06:20

we can change the default to end extension length.

06:23

But what I might want to do is change that just for one wall foundation.

06:27

So here you can see that we have this grip at the end of the wall foundation,

06:31

I can simply drag this to change the length.

06:34

So in this example, here, I might be looking at 18 inches or obviously 1.5 ft

06:39

and you can now see the wall foundation has extended.

06:42

OK.

06:43

So in summary,

06:44

you can see that we have many tools to

06:45

change the type and instance properties of our wall foundation

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