Model elevator pits

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An elevator pit is positioned below the first floor and

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provides a recess for the elevator and associated machinery.

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The elevator pit is constructed from structural foundation slabs and walls.

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In this video,

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we're going to create a model for an elevator pit and create the required details.

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We'll begin by creating our level one foundation slab

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to do this. Go ahead and select the structure ribbon

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and on the structure ribbon, select structural foundation slab

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in the properties paddock in a type selector.

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Let's ensure that we're using our six inch concrete slab.

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You'll notice in the level one plan that we

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have a number of reference planes already configured.

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The outside reference planes designate the boundary of our foundation slab.

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The internal reference planes are marking the

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structural opening for our elevator pit.

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So we'll begin by selecting the rectangle tool on the draw panel

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here. We can simply trace the reference points

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and I do the same thing for our structural opening

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to finalize the structural foundation slab.

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We'll select finish, edit mode on the context ribbon

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to deselect the slab. We select modifier.

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You will also notice that we have a spam direction symbol.

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We'll select the span direction symbol. And in this example, we'll press delete,

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we're now ready to create the vertical walls for our elevator shaft

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to do this. Let's go ahead and zoom in to the internal opening

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and the elevator pit walls are going to be created with the wall command

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on the structure ribbon. Let's go ahead and select all

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in the properties pad in the type selector.

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Let's just ensure that we're currently using concrete wall 12 inch

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on the options bar.

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We'll ensure that the wall is going to be modeled down to a depth of the elevator pit

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and the location line will be finish face interior

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on the draw panel. Let's select rectangle

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and we'll construct our walls.

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Notice here that I'm constructing the walls

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right away from the structural opening.

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The reason for this is we'll use the align command

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to constrain each of the walls to the structural opening

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to do this on the context ribbon, we can select the align command.

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We'll begin by selecting our edge on our foundation slab

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and then the internal face of our wall.

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Here,

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it's very important to lock and constrain that

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wall to the edge of the foundation slab.

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We'll do the same here

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and again, lock that.

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Yeah

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and again here

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to release the align command on the context ribbon select, modify,

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we can now create the structural foundation slab at the base of our elevator pit

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to do this in the project browser under structural plans.

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Let's open up the elevator pit plan

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to create another structural foundation slab.

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We right mouse click,

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we go to recent commands and here we'll use structural foundation slab

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in the properties pallet in a type selector.

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Let's now ensure that we're using a 12 inch foundation slab

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on the context ribbon in the drawer panel.

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You'll note here that we have pick walls selected by default

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on the options bar.

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We're just going to ensure that the offset is set to 12 inches or 1 ft.

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We can now go ahead and create the boundary line for our foundation slab.

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Notice as I move over the wall rait

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shows a preview designating the side of the offset.

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I want to ensure that the offset goes to the outside of our walls.

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We can then go around and pick each wall in turn

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and now we can finalize our structural

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foundation slab by selecting finish edit mode.

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Once again, I'll deselect the foundation slab by selecting modifier.

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I'll select the span direction symbol and press delete.

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Let's now review our model in 3D

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in the project browser on the 3D views folder, double click on 3D working view.

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We can now see our model.

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What's very important now is to attach the walls to both foundation slabs

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to do this. We'll move over one of the walls so it's preselected

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and then we can press the tab key to find the chain of walls.

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We'll then select those walls

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and notice on the context ribbon, we have attach top base.

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Let's go ahead and select, attach top base

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on the options bar. You'll note that the first option is top.

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So here I'm going to select this structural foundation slab.

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The walls have now attached to the socket of that slab

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will do a very similar thing for the structural

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foundation slab at the base of the elevator pit.

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So again, on the context ribbon, we'll select attach top base.

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But this time on the options bar ensure that we've selected base.

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We can then rotate the model round

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and select the foundation slab at the base of the elevator pit.

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So now we have a fully parametric model

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to test this. You can see here that we have our levels.

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If I select the elevator pit level here, I'm going to tie up in negative 6 ft

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and we can now see the levels dropped.

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But the key thing here is you'll notice the

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walls have remained connected to the two slabs.

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OK. Let's review our model in section

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to do this. We'll switch to our level one plan

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to create the section. We'll go to the view ribbon

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and we'll select section

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to construct the section. We'll select a position approximately here.

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If you hold down the shift key,

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the section line will be constrained to draw orthogonal

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and we'll place this section approximately here

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in the property's pallet.

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What I'd like to do here is change the far clip off set to six inches.

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We can then go ahead and open up the section

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to do this. We can double click on the section head and here's our section.

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If we zoom into the section,

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you'll notice that the blinding is already

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added into our structural foundation slabs.

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We're now going to use a detail line to show some damp proof membrane

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to do this. We'll select the annotate ribbon

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and on the detail panel, we'll select detail line

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on the context ribbon. We'll ensure here that we're using in the line style membrane

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and on the draw panel, you'll note here that line is already selected

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in the options bar. We just need to ensure that chain is switched on.

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And here for the offset, we'll choose two inches.

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We can now start on the right hand side and I'm going to snap here

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and now I can trace off the outside boundary of my elevator pit.

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As I do this, you can see the detail lines are created with that two inch offset

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to complete the command. We can go ahead and select modifier on the context ribbon.

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We'll now add some annotations in the first thing we'll do is zoom up on the

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base of the elevator pit and we're going

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to call out the different materials within the slab

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again, on the annotate ribbon, let's select material tag.

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We'll begin by tagging the concrete so we can pick on this concrete layer here

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and then place our our tag.

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We also place another tag here for the blinding

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and another one here for the damp proof membrane.

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Notice here, if I move over the intersection between the concrete and the blinding,

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you can see that we have a damp proof membrane.

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So we'll place out our material note for that as well.

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We'll now place down some additional tags which will

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show us the thicknesses of the walls and the slabs

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to do this.

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We'll go back to the annotates ribbon and on the annotates ribbon,

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we'll select tag by category on the options bar.

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I'm going to remove the leader option

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and we'll now begin by placing a tag on our six inch concrete slab.

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We can then use the move tool to move the tag into a suitable location.

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We'll do a very similar thing for the tag on the foundation at the bottom.

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And again, we can tag our walls as well

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to release the command. We can select to modify

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if we want to rotate these tags here,

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we can simply select the tag and then press the

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space bar and you can see that will then rotate

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and we can again move those into a suitable position.

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Finally, we'll use a field region to designate Earth

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to do this on the annotates ribbon. We'll select the region pull down

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and we'll select a field region

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on the context ribbon. Let's ensure that invisible lines are selected

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and now we'll select the line tool,

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we'll zoom in here

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and we'll just draw a small area representing Earth. So here we can be fairly

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abstract about how we show that.

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And we'll close the sketch

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and then again here, select finish edit mode

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and you can now see we have our Earth represented.

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Finally, we'll review the analytical model in the project browser,

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double click on the analytical model.

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And of course,

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here you'll note that we have a very neat

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and tidy analytical model with the required structural opening

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the walls and also the foundation at the bottom.

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So in summary, this is a very effective way to create an

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photo

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pit detail.

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And you can see that we also get a valid analytical model.