Work with concrete joins

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When two elements are joined, you may need to switch the joint order.

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In the example below, you can see a steel pile that should be embedded into a pile cap.

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The image on the right shows the pile after switching the joint order.

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In the example below,

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a structural foundation slab has been joined to

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a wall and columns and the join order switched

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notice the voids where the columns and walls extend down to the pile caps.

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This action would also make the

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reinforcement of the structural members more consistent

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in this video.

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We're going to take a look at joining concrete members

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together and also look at switching the joint order.

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Let's begin by opening up a section view

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in the project browser under the section's folder.

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Go ahead and open up foundation slab details.

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In this section view,

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you can see that we have a number of elements that are clearly not joined.

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You can clearly see that the s aren't joined because we have this

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heavy section line running through the joints of all of these items.

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Let's now use the joint tool to clean up the view

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to do this. We'll go ahead and select the modify ribbon

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and on the modify ribbon in the geometry panel, we'll select join,

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we'll begin by joining the floor to the wall.

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So let's go ahead and select this floor here

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and then we'll select the wall.

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We can now see that those two elements are joined

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and the line that was forming the intersection

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between the two items has now been purged.

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However,

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you can still see that we have a line at the intersection between the two walls.

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We're still in the joint command.

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So we can select this wall here and also select the wall at the top.

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And now you can see that those three elements are now joined together.

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If we move into the central wall section here.

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Once again, we can see a line on the interface between the two structural walls.

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So we'll select the bottom wall and then the top wall.

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And again, you can see they're joined,

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we'll do the same thing here

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and again, pick the two walls.

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And lastly,

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we'll select this structural wall here and this structural foundation slab here.

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Now,

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if we have a look at where the three structural

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walls are now intersecting with the structural foundation slab,

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you can see here that we have three walls to join to this single slab

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to do this, we can use multiple join.

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If we take a look on the options bar,

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you can see that we have the option of selecting multiple join.

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Let's put a check in the box here.

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And what we do here is we start by selecting the

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item we want to join to which is the foundation slab.

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And then I can use a crossing window that cuts through

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the three walls that I'd like it to join to.

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You can now see simultaneously all three

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walls have joined to the structural foundation slab

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to exit the tool on the modify ribbon. We'll select the modifier button.

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We've also got a 3d rendition of this foundation slab detail.

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Let's now inspect that

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in the project browser under 3d views. Go ahead and open up 3d foundation slab.

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If we now zoom into the detail, we can clearly see that again,

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all of these elements are joined.

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OK. Let's now take a look at switching the joint order

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to investigate this tool. We'll open up a pile cap detail

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in the project browser under sections, go ahead and open up the pile

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CAPP detail.

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In this detailed view,

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you can clearly see that we have concrete piles

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that are supposed to be embedded inside the cap.

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Now, in actual fact,

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the concrete piles are embedded into the

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cap but the joint order simply needs switching

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to do this on the modified ribbon in the geometry panel.

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Go ahead and select the pull down menu under join.

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You can see here that we have a number of different options.

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We have joint geometry, uno geometry

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and switch join order.

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Let's go ahead and use switch, join order

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on the options bar. You'll notice here that we have multiple switch.

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I'm just going to temporarily remove that.

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And here we want to select the pile. Now, of course, the pile is a Subedi.

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So we'll need to hover over the outside edge of the pile cap

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and pile and then press the tab key to select the Subedi.

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We can then select the pile

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and then we can pick on the pile cap.

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You can now see the joint order has reversed.

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And you can clearly see now the pile is embedded inside the pile cap.

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Also notice that we can see the hidden detail

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of the pile cap that's beyond the pile itself.

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We'll now repeat that for the pile on the other side.

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So once again, we'll press the tab key to select the Subedi,

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which in this case is the pile

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and then we'll select the pile cap.

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And again, you can see the joint order has been switched.

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Also, in this view,

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you'll notice that we need to join the pile

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cap to the foundation slab to do this again.

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On the modify ribbon, we'll now select join,

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we can pick on the slab

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and then we can pick on the pile cap. And again, those two elements are joined.

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OK. Let's now take a look at the 3D foundations view

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in the project browser under 3D views. Go ahead and double click on 3D foundations

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in this view here,

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we're going to isolate the floor so we can

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see the effects of switching the joint order.

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Normally, structural columns and walls take priority.

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They would split the walls and the columns.

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However, in this case, we've switched the joint order.

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Let's now inspect the slab.

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We'll select the floor

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on the view control toolbar. We'll select temporary hide, isolate

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and here we'll isolate the element.

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We can clearly see here that we have penetrations for the columns and the walls.

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And also on the outside perimeter of the slab,

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you can see that we have notches where the walls and columns would be going through.

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Of course, this gives us the correct volume of concrete for the slab.

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So if I select the slab here, you can see that we have a volume calculated.

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This volume is now correct.

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And also it will help with reinforced concrete detailing.

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In summary, we can see that using the joint tool improves the drawing outputs.

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And also it gives us correct volumes of concrete. For each structural element.

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We can use the switch joint order tool to

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change the priority in which elements are joined.

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So in the example of the pile cap, the pile cuts a void inside the cap.