Help with footing

[Anonymous]

I (not unlike other people, I think, based on my review of previous posts) am having trouble with creating a simple footing. I have tried using a wall element for the stem and another wall element for the pad. The problem with that is that the hidden line looks good in plan, but should not be hidden in section. The best I can come up with (besides the "footing" in the slab extras is a using the beam tool. Problem with that is the corners of the stem become clipped, and in section, there is a horizontal line between the stem that should not be theres. Any help would be greatly appreciated.

Regards

[Rakela Raul]

incredible that ac has such a limitation in a so fundamental tool for design and construction...accessories needs 'offset' + 'angle'+ various type of foundations.
revit has a tool called 'edge footing', which is also an under developed tool
and not worst than ac's slab accessories.

[TomWaltz]

Rakela wrote:
incredible that ac has such a limitation in a so fundamental tool for design and construction...accessories needs 'offset' + 'angle'+ various type of foundations.
revit has a tool called 'edge footing', which is also an under developed tool
and not worst than ac's slab accessories.

The accessories in general have always struck me much the same way the Archicad Object Library in general does: A neat tool with a lot of potential, that GS never really developed all the way.

The Accessories look so great, and work sometimes, but really need more attention before they will reach their full potential. That's why I mention CADimage so much, because they really took the Accessories a lot further than Graphisoft has.

We can only hope that someday our voyage will lead us to a better way to do foundations.

[Karl Ottenstein]

The choice of modeling tools will vary based on the situation of course ... but I switched from slabs to walls early on after finding that our preliminary footing designs were almost always changed by the structural engineer.

With our steep sites involving often asymmetric footings under retaining/stem walls, the engineer typically calls out not only the footing width and depth, but also the offset from the face of the wall (the asymmetric part). Using the wall tool for the footings makes it easy to adjust all of the parameters in the preliminary model, including the (reference line) offset. When I used to use slabs, it was just a lot more editing to adjust both sides of each run of footing.

Just what has worked for us.

Karl

[gpowless]

Using slabs has its advantages. You can break the footing anywhere you want, raise and lower the sections to create steps and then SEO with downwards extrusion on the wall.

Before SEO I used flat roof slabs and trimmed to slab at the base of the wall. This was more tedious........

[Karl Ottenstein]

gpowless wrote:
Using slabs has its advantages. You can break the footing anywhere you want, raise and lower the sections to create steps and then SEO with downwards extrusion on the wall.

Can do all of this with walls as well, except that the breaks will be perpendicular to the reference line, while slabs can of course be cut in any shape. 😉

Karl

[Rakela Raul]

wow, i think we are in need of a tool here !!! dont u agree gs ??

why not using the slab accessories tool to the closest possible to match the real footing and forget about it...and then use 2d lines to dress it up
for the cd's

[Link]

The choice of modeling tools will vary based on the situation of course ... but I switched from slabs to walls early on...

I don't know how you can look past walls for footings, given the current tools available. You can magic wand them in with the offset, elevations and heights already applied. Using favorites, you can magic wand an entire (single level) footing system in with just a three clicks. If you need to change any heights, simply split and elevate them. Peica.

For a sloping footing, the roof tool is next best thing IMHO.

Cheers,
Link.

[Rakela Raul]

That's why I mention CADimage so much, because they really took the Accessories a lot further than Graphisoft has.

looks good...and as an 'accessories', i guess moves with the slab....seems a decent alternative.
(edited)
i regret not taking a closer look at cadimage's solution for footings before..and 150 dls is not bad @ all.....case closed

[Aussie John]

I couldnt imagine using slabs for footings. after you set up all of the footing beams at 300 wide then the engineer changes them to 400w. No way.

[Anonymous]

I notice that no one has mentioned the possibility of using
a library part for making footings.
I have been experimenting with a library part that
makes footings and it seems to show some promise.
It is stretchable and the miters and joints are made quickly
with 2D editable hotspots.
Independent control of how it appears in plan, section/elevation,
and in the 3D window is easily done.
Offsets, asymmetric footings, independent line types, pen weights,
sloped sides, e.t.c. can all be coded for.
I submit that this option has some merit.
Thank you,
Peter Devlin