Working with structural floors Part 2

00:04

After completing this lesson, you'll be able to work with shape editing tools, create a shaft opening, and edit a floor profile.

00:13

The objective domains covered are, 1.1b, work with structural floors.

00:20

Shape editing tools can be utilized on structural floors to enable a series of complex facets to be created.

00:27

With the use of the split line, you can ensure that the facets remain planar and are not warped.

00:32

In example below, you can see a basement slab with a point added to the center of the slab for drainage.

00:38

This can be applied to one layer of the slab, in this case, the screed.

00:44

Shaft openings are a convenient and a fast method of adding vertically aligned openings through multiple floors.

00:50

Symbolic lines can be drawn that automatically appear on each floor that is cut by the opening.

00:57

Go ahead and open up the model 009-Work with structural floors part 2.

01:03

You'll note that the model opens up in the Lift Pit plan.

01:08

Let's go ahead and zoom up on our core.

01:11

Now, first task is to create a slope on a slab to help with drainage in the bottom of our lift pit.

01:19

To model the floor on the Structure ribbon, select the Floor command.

01:25

In the Properties palette, click the type selector and ensure that our 3" Screed on 8" RC Slab is set.

01:34

Before we go ahead and model with this, let's take a look at how this slab is set up.

01:39

Select the Edit Type button and then go ahead and select Edit.

01:46

In the Edit Assembly dialog box, let's ensure we're looking at the preview, and you can see here that we have two layers in our core boundary.

01:56

We have our concrete, which is 8" thick.

01:59

And on top of that, we then have a screed seated on the slab.

02:03

But you'll note that we also have this Variable option over here.

02:08

So this variable option is going to allow us to shape edit just this layer.

02:12

So the concrete will stay flat and level and the screed will then have a fold angle to produce the fold for our drainage.

02:21

Let's click "OK" and "OK" going to the type properties dialog.

02:29

Our total slab thickness is 11".

02:32

Let's set the Height Offset from Level to 11".

02:38

We'll then go ahead and select the Rectangle tool to create the boundary for our slab.

02:46

Let's now go ahead and Finish Edit Mode.

02:51

So our slab is now created.

02:53

We're now going to utilize the shape editing tools on the context ribbon.

02:58

Note that we have a tool here called Add Point.

03:02

Let's select Add Point and we'll place a point in the center of our slab.

03:09

Now this point needs to be accurately placed, so we're going to use Aligned Dimensions to make sure that the point is correctly dimensioned.

03:16

You may need to use the Tab key here to cycle through selections.

03:24

So once again, I'll use the Tab key, and now we're going to set the position.

03:30

So I can select my point, click on the dimension, and I'm going to use a formula here.

03:36

So I'll say, equals 9'3"/2.

03:42

And of course, that sets the point into the center of the slab in this direction.

03:47

We'll repeat that over here.

03:49

So again, we can make this equal to 6'2"/2.

03:57

And our point is now secure in the center.

04:01

Let's go ahead and select that point.

04:04

And here, I'm going to drop this down -2".

04:09

And you'll now notice that our slab is forwarding to the center point.

04:13

To help us understand what we've modeled, let's create a section.

04:20

We've sketched the section horizontally across the screen, but we want to make sure that the section is aligned to that point that we've just placed.

04:29

So we can go ahead and use the Align command.

04:33

Again, I can use the Tab key to go and pick up our shape editing point and then pick the section.

04:42

So we'll then go ahead and look at that section.

04:46

We can change the scale and the detail level.

04:50

And here, you can see our concrete slab with the screed with the fold angles over the top.

04:59

Next, we go ahead and create a shaft opening.

05:03

Let's go and open up the Top of Foundation plan.

05:09

So here, we're going to create our shaft opening.

05:13

On the Structure ribbon, click Shaft.

05:19

This is a mode-driven command and you'll notice we have two modes.

05:22

We have the Boundary Line mode, which is where we define the plan and shape of our structural opening.

05:28

And then we also have the Symbolic Line mode, where we can draw the opening graphics that we'd like to see on each floor.

05:35

In the Properties palette, we can set our level for the base constraint and also the top constraint where our shaft opening is going to stop.

05:45

So in our case here, you can see that it's going to go from the top of foundation up to ground floor.

05:50

I need to edit this.

05:52

We need to have the shaft opening going all the way up to the fourth floor.

05:57

Ok, so we're now ready to create our boundary line opening.

06:01

So we'll select the Rectangle tool and we can sketch our opening.

06:09

You'll note here that when I sketch the opening, I'm creating it on the outside of my structural walls.

06:14

The structural walls will form the course.

06:18

We can then select the Symbolic Line option and I can sketch in here my opening graphics.

06:24

Now when I do this on the options bar, it's preferable to remove the Chain option, as you generally just want to draw single lines.

06:43

Ok, so we'll just sketch those symbolic lines in, like so.

06:50

Our sketch is now complete, and we just simply now click the Finish Edit Mode.

06:58

Let's go up to the first floor just to take a look at our plan graphics, and you can now see the opening graphics are showing in that level.

07:06

If we open up the sectional view, we can now see a shaft is in place.

07:14

If I ever want to edit the shaft, you'll notice that I can select it in plane all section,

07:18

and I can then edit the vertical extents of the shaft utilizing the Properties palette,

07:23

or Edit Sketch and change the plane representation of my shaft.

07:31

Finally, we'll edit the profile of our first floor slab to create some drainage pipe openings.

07:38

So let's click back to our First Floor plan.

07:41

And you'll note here that we can select the edge of our floor.

07:46

Once that's done, on the ribbon you'll note we can edit boundary.

07:54

I can now zoom into my boundary, and here, I want to add some circular openings to my slab.

08:02

So here, I can click the Circle tool.

08:06

And we'll sketch a 3-inch opening, which will give me a 6-inch diameter hole.

08:13

And I'm going to copy that.

08:16

So I want 12 inches between these holes, like so.

08:27

And then my three openings created.

08:30

Of course, what I can then do is move them into the correct position, and then go ahead and select the Finish Edit Mode.

08:41

I'm going to say "No" because I don't want to attach these walls.

08:46

And there's my slab.

08:48

To help us understand how this might look, let's go into the 3D view.

08:54

And in the 3D view with the slab still selected, I can isolate the view.

08:59

So I'm going to select Temporary Hide/Isolate, and we just want to isolate this single element.

09:08

So you will now see my shaft opening incorporated in here as well as my opening through the single first floor slab. Ok.