Demolishing floor and roof elements in a construction project demands a unique approach due to the inability to split these elements like a wall. This article guides through the process of breaking down these elements, drawing new boundaries, and setting up a demo plan for successful demolition and construction.
Key Insights
- The process of demolishing a floor or roof is slightly different from that of a wall as these elements cannot be split. The demolition requires breaking down these elements into two pieces by editing the boundary.
- The use of the tool 'create similar' aids in illustrating which sections of the floor or roof are to be demolished. This tool allows for the design of a demolition level where specific portions to be demolished are highlighted.
- Importantly, the phase filter in a 3D view can effectively illustrate which parts of the building are being removed, show what areas can be retained for the new design, and even demonstrate what will be included in the new design. This process concludes with setting up the graphics for the demo plan and creating a legend to show which elements are being demolished.
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To demolish my floor and roof elements, I have to take a similar but very different approach to demoing out these portions. And the reason I say it's similar but very different is because we do still have to break out the floor and the roof from the original one, just like how we split this wall here. But we can't split a floor or a roof, so we have to do it a little differently.
So what I'm gonna do is I'm going to select my floor. And again, I'm in my level two demo plan. And I'm gonna edit the boundary.
And what I'm gonna do is I'm gonna take, and I'm actually gonna draw a couple of lines here. So I'm gonna add a line here and one here. And essentially what I'm doing is I'm breaking out this floor into two pieces.
So the profile that you see here, this is what we're gonna call existing to remain. And we'll redraw a portion of the floor in here, which is gonna be existing to be demolished, which would help us show what's being demolished on this level. So with this profile drawn correctly now, I can go ahead and finish the sketch.
And what I'll do is I'll just select it here. And my favorite tool, and yours probably too, is create similar. I use CS for the keyboard shortcut, or you can just right click.
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Create similar. And then I'll draw in this rectangle that we previously removed. And the settings for this are gonna be phase created, existing, phase demolished, new construction.
Because this section of floor is effectively going to be existing to be demolished. And that's really the only reason it's being drawn that way. And what's great about that is I still have a full complete existing level two, even though we do have the lines that show it, but that's fine.
But I also have the ability to show a demo level two where we can have this portion being demolished. When it comes to the roof, we're gonna do the exact same thing. If I jump up to my demo roof plan, I can go in here and I can follow that same procedure.
And so I'm just gonna use the same lines. You can see I've got the break right here that I could use. And I've got the grid line that I could use as well.
We'll follow the same process where I'll go through, edit the footprint. I'm gonna use my draw lines tool here to draw the line across to the grid and then down using the trim extends to corner to create my edges here. Very important.
We wanna make sure we're not having the slope turned on for those two. We'll uncheck the defined slope there. And then we can finish the sketch because this is effectively the portion of the roof that is not gonna be demolished.
Now we can use create similar, draw back in that corner, doing the same stuff we did before, making sure that none of these have defined slope checked. And the way I was able to do that so quickly, if you recall, is we can use that tab key to select the whole chain and then uncheck it in the options bar. Now the properties are what are important here, getting the phasing set to existing for phase created and new construction for phase demolished.
And there we go. If I were to look at my 3D view now, I essentially have an entire section of the building that's being removed. And so this is looking at it with the phase filter set to previous plus demolished.
But if I change it to previous plus new, then it'll just remove that section. And now I just have an opening, which is ready for us to put in our new addition. So you can always use that phase filter in your 3D view to illustrate what's being removed really graphically.
And also you can show what areas can be left for the new design. And then even as much as showing what is gonna be included in the new design. Now that we've got our demo plan set up, the next thing to do is we gotta look at the graphics and how we get this on a sheet to look right and how we get a legend that kind of clearly will show what elements are being demoed.
And then finally, we'll put this whole thing together for our midterm package.
