Construct this footing

[jsoto1685]

I can't figure out how to construct the footing in the first image attached. In RST when I use the isolated footing tool it will create the footing attached to the bottom of the wall. However youc an see in the first image that my wall has significate distance between it and the footing. what I was planning on doing is create the slab. Then use a slab edge to create the curb and the turned down porton of the slab. But how do I now create that footing?

In my office we don't even use the footing tool. We trace the whole footing where we know it will be and extrude it. This can't possibly the solution. I have my misgivings about Revit but I refuse to believe this is how revit intends for it to be drawn.

So due to my limted knowldedge of revit I come to you guys for advice. Any help will be greatly appreciated. Thanks!

[david_peterson]

The answer is simple.
First, I'd used the wall footing tool to place the rectangular wall footing under the wall.
You can use either the equal footing family which will take the width that you give it an center it on the wall. Or you can use the retaining wall footing family which you can set the heel and toe as a dimension off the face of wall.
The second part you need is the thickened slab edge to create the haunch. You can choose to use either the slab edge tool with a thickened slab edge profile, or you could use the sweep tool. Personally I'd use the thickened slab edge.
Let us know if you need an example.

[jsoto1685]

You may have to show me because when I add the parts they are all conflicing with space. See the attached image. Thanks for your help

[david_peterson]

You're close were you're at. You need to raise the slab to the correct elevation for the off set between the top of slab and top of footing below. The footing should be casted first. Next would either be the wall with the curb on top, or the slab, thickened slab haunch and then the curb. If you have a completed section I could send you a revit model wall. But here's my take on in. I've done it a few different ways.
My suggestion is draw the wall, add the footing, add the slab, add the thickened slab, then add the curb. Use the wall tool for the wall and curb, slab tool for the floor and the footing tool for the footing.
See attached. Let me know if you have any more questions

[jsoto1685]

I coud not open yoru revit file in 2009, 2011 or 2012.
i get a funny error

"Attempted to acces footing.rvt past its end."

[david_peterson]

It seemed to open just fine for me.
File was save in 2011.
PM me with an e-mail addy if you are still unable to open and I'll try to send it to you as a zip file.

[jsoto1685]

Is this what you are talking about? I'm not sure if this will show my curb properly. I'll prob have to match materials to join geometry.

[jsoto1685]

the download stops at 348kb for some reason

[david_peterson]

Yep you're close. I'd make the curb start on top of the slab. Since you just used a slab edge to create the overall haunch (another good option, I just didn't do it that), place the slab on top of it., place the curb on top of that. Make sure all you're concrete is the same (unless you want to see the cold joints, which I think you would, or you're actually using different mixes and you're going to schedule those) and join the slab to the wall and the fooitng to the wall and slab and haunch.

[jsoto1685]

Thank you David

So attached is my finished product. I have 4 elements to make up my footing.

1) I used the wall to create my curb and set the base to -1'-6" (w/e i needed) and the top to +6" for the curb
2) I created a slab and it does pass through the Curb
3) I created the footing
4) i created the slab edge

For the plan I just hid the Slab Edges.

questions:
1) I don't use the rebar functions at the moment but if/when I do will this affect how I place my rebar?
2) I feel a little uneasy about a wall existing in the model that will not exist (the 18" past the floor line to attach the footing too). Is this essetially a work around and something that Revit didn't account for?

In either case it looks exactly how I want it to look, thanks a bunch