## Foundation Plugin

### Re: Foundation Plugin

Tutorial 5 - Brick Ledges for Slab-on-Grade Foundations (14:11 min.):

2
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

I am seriously considering adding the ability to slope the slab depression and would actually like to work on it before I move back to the complex roof module.

I have a few questions:

1.) With a sloping floor do you typically measure the depression from the high side as your reference and then slope it downward? Or do you measure where you want the doors to end up and then slope upwards?

2.) What is a typical slope in a garage slab depression? Is a 1/4" per foot typical? On a 24' deep garage this would mean a vertical difference of 6 inches from front to back. This seems like a pretty steep slope.

3.) If a depression is sloped then I would assume that the slab thickness in the depressed region would remain a constant thickness and hence the bottom of the slab at this region would also slope?
1
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

I normally set the top of the depression at 3-1/2" below the main slab (a 2x4 for the form) and 5-1/2" below the main slab at the garage doors (a 2x6 for the form); if the garage is deeper than - say - 24' I would probably slope to a central location and add a drain inlet. Stems higher than 5-1/2" would need to be increased in width for me to be comfortable that they would be stable.
1
Highest Regards,

Alan T. Hendry, RA
Architect

MtnArch
Premium Member

### Re: Foundation Plugin

MtnArch wrote:I normally set the top of the depression at 3-1/2" below the main slab (a 2x4 for the form) and 5-1/2" below the main slab at the garage doors (a 2x6 for the form); if the garage is deeper than - say - 24' I would probably slope to a central location and add a drain inlet. Stems higher than 5-1/2" would need to be increased in width for me to be comfortable that they would be stable.

Rather than prompt the user for a pitch/percent grade or some other angle I think it would be easier just to have them specify a height differential. So if the primary depth of the depression is 3.5" at the back of the garage and then the user calls out a differential of 2" then the other side of the depression will be 5.5" at the door.
0
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Version 1.3.3 - 07.24.2019
- Enabled sloping slab depressions for rectangular and polygon slab-on-grade foundations.
- Fixed a bug with the slab depression draw tool.

The sloping of the depression can be either in the X or Y direction, in the future I may allow for other directions. To reverse the slope, the slope differential can be entered in as a negative number in the edit or draw menu.
3
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Very cool - great implementation!
1
Highest Regards,

Alan T. Hendry, RA
Architect

MtnArch
Premium Member

### Re: Foundation Plugin

Giving a little thought on how to created stepped foundation the last couple of days as I wrapped up work on the slab-on-grade foundations.

Creating a single (closed-loop) stemwall foundation assembly with steps is proving to be difficult. After giving this some additional analysis it seems that it would be better to break it down into separate (polyline) assemblies, somewhat similar to the Wall plugin.

If I switch to this type of system then creating steps in a foundation is just a matter of adding step "segments". I've identified three basic type of steps in the detail below:

Note, that there would also be a right and left hand version of each, this comes into play with non-symmetric features such as foam insulation and anchor bolts.

So essentially I need to create a whole new system for stemwall foundations, the current system is not scalable. The three main tools need to be:

1.) Polyline Tool
2.) Step Tool
3.) Interior Footing Tool

The polyline tool will also allow for a single (linear) stemwall or any number of segments.

I also need a opening tool for creating windows and doors in the stemwall/foundation wall.

4.) Opening Tool
1
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

With the new polyline and step tools (stemwall foundation) you will be able to create a foundation like this:

Each polyline segment will be able to be edited similar to the how you edit the outline of a stemwall or slab-on-grade foundation outline now.

Similar to the wall plugin the drawing direction will be counter clockwise in order to face the exterior of the stemwall to the outside. This becomes important for anchor bolts, insulation, brick ledge, and joist pockets.

Each segment will be an independent assembly (group) that the user can simply move around (laterally and vertically) with the native tools.

https://3dwarehouse.sketchup.com/model/ ... Foundation
2
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

First look at the new Stemwall toolbar:

The three functions/tools are:

- Draw Polyline Stemwall
- Draw Interior Bearing
- Draw Stemwall Step

I've got quite a few icons now for this plugin and I'm still not entirely sold on my choice of icons/images for these toolbars but this is what I have for now. I did try to create some 3D icons but at the resolution available for the toolbars it is very hard to create a legible 3D icon.

With regards to the step tool I also need some more information on how best to handle the footing rebar and the stemwall rebar for a step in the foundation. I've examined a few details online as well as some of my own but additional feedback would be helpful.
2
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Great work!
0
MacOSX Mojave ShetchUp Pro v19 Twilight Pro v2 M2 Kerkythea PowerCADD

pbacot
Top SketchUcator

### Re: Foundation Plugin

Running my conceptual tools through their paces this morning. Here is another example of a fairly complex multi-step stemwall foundation:

Note that the three different types of possible steps are represented in this model.

View model here:

https://3dwarehouse.sketchup.com/model/ ... undation-2

Also note that I will be providing for the ability to offset the footing from the end of the stemwall (both positive or negative) so that the user/designer can easily butt up against other foundation walls (ie. create T or cross intersections, corner).

As I was working on this initial model/concept a couple of days ago my teenage son noticed that I spent most of the afternoon constructing the model and then adjusting it. He thought that it was funny that I spent a couple of hours mucking around with the model and actually pointed that out to me. Even though most of my time was spent pondering the model (rather than creating the model), he did have a point; it should only take a designer a few minutes to generate this type of foundation, and it should be relatively easy to do. This is the goal of this new module, quick and effortless.

In the model you will notice that I added cripple/pony walls to bring the floor elevation all to the same height. These walls were generated with the wall plugin in less than 60 secs.

2
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Sometimes you may have a situation like the one shown in the image below:

To allow for this I will include a start angle and end angle parameter so the ends of the polyline assembly can be adjusted to account for various intersections with other foundation elements.

I will also include a start and end footing offset so that the footing can be offset (neg or pos) from the stemwall at the ends. Note that this offset dimension will always be measured perpendicular to the end face as shown.

I've been giving this new module some serious thought and I am hoping to get it right from the outset. All of the menus will be advanced HTML menus and everything will be parametric and available in imperial or metric units.

Similar to the slab-on-grade foundation the polyline stemwall foundation will allow the user to specify brick ledges on a per edge/segment basis. I will also setup a tool for joist pockets using the same template as the brick ledge tool.

The user will be able to toggle a polyline assembly left or right. This will switch the direction of the interior/exterior which affects things like brick ledges, joist pockets, insulation and anchor bolts.

This new module is practically an entire rewrite of the original stemwall module (even though I will leave the original stemwall tools intact as they are), and will probably take me another week or two to complete. As I'm digging into it, there is a significant amount of code to complete.

If you see a feature that you think I am missing or I should change something up please feel free to voice your opinion, now is the time to influence the direction of this development.
2
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

This is looking really good Nathaniel.

Does the polyline stemwall tool automatically hide the butt edges of adjoining sections? In your render with the pony walls, the lines appear hidden, but in the screenshot above that they are clearly visible.

Not a big thing, but one less thing to do manually to get to the desired visual output.
1

db11

### Re: Foundation Plugin

db11 wrote:This is looking really good Nathaniel.

Does the polyline stemwall tool automatically hide the butt edges of adjoining sections? In your render with the pony walls, the lines appear hidden, but in the screenshot above that they are clearly visible.

Not a big thing, but one less thing to do manually to get to the desired visual output.

Technically, each of the stemwall segments are separate assemblies (groups) so they are not welded together (ie. one solid).

However, I do have a few tricks up my sleeve in this regard. I can enable an option which will hide the edges of the solid so that the foundation can appear to be all one solid. I'm already doing this sort of thing with the Wall plugin, however it is on a global settings scale. I think it makes more sense to set this up on a per segment basis since there may be times where you do not want to hide the edges of a particular segment. I will need to give this some further thought.

Personally I don't find this to be a very important concern since rendering eliminates these unwanted edges, however I can still see that there might be an issue when generating elevation or plan views
1
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

First look at the draw menu for the polyline stemwalls:

Only the Basic Options appear when all of the other options are toggled off.

Similar to the Wall plugin it will allow the user to draw a polyline section of foundation and then continue on and keep drawing more sections, updating settings as required.

Note the inclusion of the hide edges option in the updated menu.

Other options like brick ledges, joist pockets and openings will be on a per edge basis, so they do not appear in this menu or in the edit menu.

The basic template is now in place however I am still considering how to best terminate the tool while the user is picking points. My thought is to terminate the picking process by having the user hit the Enter key. Unlike the polygon method the user is not needing to return to the start point so there is no natural detection of when the user wants to terminate their picking of points.

Any thoughts on what the most intuitive method of handling this should be?
2
Last edited by medeek on Mon Jul 29, 2019 10:02 pm, edited 1 time in total.
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

medeek wrote:I can enable an option which will hide the edges of the solid so that the foundation can appear to be all one solid.

That was what I was asking about, and I think it's fine to leave it in global settings. As I said not a big deal, but enabling that option for this module would be a (small) plus.
1

db11

### Re: Foundation Plugin

The hide edges option is already included and will be adjustable per assembly.

I will also be exposing all of these parameters within the global settings so that the defaults can be customized accordingly.
2
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

It's good to hide the edges as extra lines in the documents can cause confusion. You might get unintended construction joints.
1
MacOSX Mojave ShetchUp Pro v19 Twilight Pro v2 M2 Kerkythea PowerCADD

pbacot
Top SketchUcator

### Re: Foundation Plugin

First look at the output of the new stemwall module:

In this particular situation you would probably just use the polygon stemwall tool for the outer perimeter since there are no steps in the foundation but I think the model demonstrates the idea.

I should probably change the label to something like WALL or STEM, I'll give this some further consideration.

What I really like about this new module is that it is so much more flexible than a simple polygon or rectangular outline. Once I add the step and interior bearing tools this one is going to be a game changer.
1
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Footing offsets and mitering is now stable:

When the foundation outline is a closed loop the polyline tool will automatically close the stemwall foundation and draw it as if it were a closed polygon as shown above.
1
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Version 1.3.4 - 08.01.2019
- Added the Stemwall Foundation toolbar and icons.
- Enabled the "Draw Polyline Stemwall" tool.
- Enabled footing offsets and mitering within the draw polyline stemwall tool/menu.

Note that the ability to edit polyline stemwalls is not yet active. I am putting this out a bit earlier than I normally would so that users can give me additional feedback on the functionality and features.

Also note that to terminate your point selection process you depress the "Down Arrow" and not the Enter or Return key. I would like to change this to the Enter key but I'm not quite there yet.

The polyline tool will only draw the concrete currently, all other additional options like rebar, anchor bolts, insulation, vents and joist pockets are currently not available.
1
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Many of you may have noticed the absence of regular updates the last couple of weeks. My youngest daughter (Nathanya) had to undergo an operation on both of her legs (femur) at Primary Children's Hospital in Salt Lake City, Utah about a week ago.

I have taken a small break from the coding to be with her and my wife during this ordeal and during the recovery. Unfortunately, her recovery has been slower than I had hoped for so I have spent extra time in Utah providing support. I am hopeful that her condition will continue to improve and I can jump back into the saddle in the next few days and wrap up the work on the stemwall module.

67914368_10157094965151357_8604994761679437824_o.jpg
3
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

All the best to you and your family, Nathaniel! We enjoy your posts and work here, but it is minor, compared to your role as a father.
3
MacOSX Mojave ShetchUp Pro v19 Twilight Pro v2 M2 Kerkythea PowerCADD

pbacot
Top SketchUcator

### Re: Foundation Plugin

Back in the saddle.

Looks like the rebar is now working for the polyline stemwall. Lots of possible configurations so I've got to try and break it for a few more minutes to be sure it is 100% stable:

Anchor bolts are next.
3
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Anchor bolts with rebar:

After an almost three week sabbatical it took me all of yesterday to just get back into the full swing of things and figure out where I left off. It's good to be back laying down some serious code.

Developing these plugins has got to be the most satisfying job/business I've ever had. Thank-you SketchUp for making all of this possible and more importantly thank-you to my many supporters and customers who continue to support my efforts, I will do my very best not to disappoint.
1
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Frost protection for a polyline stemwall:

Note that the polyline tool allows the user to create not only polyline segments of stemwall foundations but also closed loops and single linear sections. Making sure the code behind the scenes is flexible enough to handle all of this is a bit of a task but I think the end result will be very functional and efficient.
2
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Foundation vents are now working for the polyline stemwall tool:

The next item of business is to create the edit menu and then check that all of the parametrics are working as advertised. Once the edit functions are up and running I will release the next version and then begin working on the "Step" tool.

I've also been giving the interior bearing tool some thought and I think I will start with only two basic types (stud wall and posts & beams). There are also quite a number of other variations that are commonly used such as steel posts etc... but I will wait until those are requested directly by the designers before diving into those.

I've also been giving brick ledges (and stemwalls) some thought and trying to come up with the most logical way of handling this type of construction. Typically when a brick ledge is called out the stemwall is thickened however the rest of the segments within a foundation may not have brick ledges and will be a different thickness. So brick ledges needs to be on a per wall segment basis.

Another item of interest is including more rebar when the stemwall is actually a full basement wall and also including vertical bars. How deep does the rabbit hole go? When it comes to full basements I will also need some tools for cutting windows and door as well as placing window and door hardware similar to the wall plugin. Additionally if the user does cut an opening in the foundation wall the rebar must be adjusted to account for this opening.

I've also had a number of requests for CMU stemwalls rather than concrete. In my opinion modeling of a CMU wall is no different than what I already have I just need to incorporate some fancy material application logic to make the solid look like CMU (similar to what I have done with the wall plugin). I will enable a CMU option that will allow the user to create CMU stemwalls.
2
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

The basic edit function is up and running:

I'm quite pleased with the performance of the edit tool, it is very fast.

The last piece of the parametrics is the ability to edit the polyline that actually defines the foundation outline. About a month ago I began to explore this problem and the necessary algorithm that will be required to do this:

https://forums.sketchup.com/t/inputting-a-polyline-extracting-its-vertices/99776

I haven't arrived at a solution yet but I will begin to tackle this problem next.
1
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

Version 1.3.5 - 08.24.2019
- Enabled rebar, anchor bolts, insulation and vents for the "Draw Polyline Stemwall" tool.
- Enabled the "Edit Stemwall Assembly" function/menu for polyline stemwall foundations.
- Enabled the "Edit Stemwall Outline" function for polyline stemwall foundations.
- Added a "Hide Edges" option in the draw and edit menus for polyline stemwall foundations.

Note that the hide edges option only hides the edges of the concrete at the terminal ends of the stemwall and footing. This feature will come in useful where the user is utilizing the upcoming stemwall step tool to adjoin sections of foundation together.

Checking end conditions with FPSF option enabled:

The next item to be addressed is the stemwall step tool that will work in tandem with the stemwall polyline tool just completed. Being that this is a completely new feature there may be further refinements necessary or features that further improve the functionality. Please send me any feedback via the forums or email.
0
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

### Re: Foundation Plugin

After looking at various details (including some of my own) I am wondering if enabling an option to include a 4" DIA drain pipe along the footing might be of some interest. Please let me know know your thoughts on this. I haven't had too much call for it but I have often called one out in many of my own plans and drawings:

http://design.medeek.com/cad/autocad/ST ... DETAIL.pdf

Capture.JPG

Parameters would probably be:

1.) Diameter: 4"
2.) Bend Radius: 4"
3.) Wall Thickness: 0.125"
4.) Hollow: Yes/No
5.) Ftg. Clearance: 2"

Additional layer for PVC and a PVC material (RGB: 149, 219, 184)
2
Nathaniel P. Wilkerson PE
Medeek Engineering Inc
design.medeek.com

medeek
PluginStore Author

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