3D Truss Models
-
Recently I've had a couple requests for bobtail/stub end trusses.
When specifying how to truncate the truss, what lengths are typically used to control the location of the stub end(s)?
1.) Stub or heel height.
2.) Nominal span minus stub length -
Then of course to further complicate matters there is the double bobtail truss which is really nothing more than a raised heel truss with unequal heel heights
So rather than add in a completely new category of trusses I suppose I could just allow the user to specify a heel height for both the left and right side of the common truss. Currently the first menu has the option for a raised heel which is then applied to both sides of the truss. I think I could just update to be:
Raised Heel Left: YES/NO "Defaults to NO"
Height Height Left (in.): "Defaults to 12" if no user entry"
Raised Heel Right: YES/NO "Defaults to NO"
Heel Height Right (in.): "Defaults to SAME AS LEFT" -
Quite a number of requests this month for the flat truss, looks like I need to re-focus my priorities again.
-
Woke up early this morning and I began to work on extending the recent polygon tool (in the foundation plugin) to the floor joist module in the truss plugin. There are some differences but the principles and methods are nearly the same.
It just occurred to me that when sections of floor joists are the same (ie. L-shaped floor) it would be useful to have joists that are the same geometrically (length) all use the same component definition so that they could all be edited at once. This same concept would also be useful for the slab reinforcement. I plan on making this change to both plugins so that editing after the fact is facilitated as much as possible.
-
Version 1.8.8 - 04.28.2017
- Added energy/raised heels for mod fan truss (3 variant: wedge, slider and vertical w/ strut).
- Metal plate connectors now enabled for mod fan trusses.
-
Chinese users will love this version
Version 1.8.8 - 04.28.2017
-
Looks wonderful!
-
Version 1.8.9 - 05.01.2017
- Added energy/raised heels for triple fink truss (3 variant: wedge, slider and vertical w/ strut).
- Metal plate connectors now enabled for triple fink trusses.
-
What are the chances of you doing a version of this that does steel trusses? Not really useful for residential, but for industrial / commercial it would be useful.
-
While I myself most likely would not model rebar or even studs, the quick generation of a visually complete house model (no innards) is very desirable and this last house model looks great. Just that visual shell would be my preference. Emphasis on exterior views, and possibly a foundation model that can be viewed by the design and construction team. Maybe some ability for some interior shots, sun study, fly-through, or top-down (Minus roof) view of rooms. Still the framing is very impressive and looks wonderful!
-
I assume standard finishes are included in the plugins? You might add standard trim such as dimensional corner trim frieze boards and water tables. Just what's needed for a start-- the user can model special trim for themselves.
-
So many possibilities and so little time.
I've now extended my list of plugins that I would like to create or am currently creating to:
1.) Truss Plugin (roofs and floors)
2.) Foundation Plugin (stem, sog, slab, spread ftg.)
3.) Wall Plugin (stud walls)
4.) Stairway Plugin (wood, concrete and steel stairways)
5.) Structural Plugin (calculation of beams, footings, posts, shearwalls etc...)
6.) Reinforced Concrete Plugin (RC columns, beams, retaining walls, piles, mat foundations, spread footings, etc...
7.) Steel Framing Plugin (cold formed steel framing, steel wide flange beams and posts, steel trusses, NUCOR steel buildings)
8.) Deck Plugin (residential wood decks, balconies, stairs, footings)
9.) Window and Door Plugin (windows, doors, OH Doors, Garage Doors, interior doors)The window and door plugin will probably be part of the wall plugin, but I might also make it a separate standalone plugin if users want that.
-
Fun with Roofs - Episode 1
My 9 year old son took one look at this roof and then said "Don't build this in Florida, you'll create a sink hole".
View model here:
3D Warehouse
3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.
(3dwarehouse.sketchup.com)
-
I'm trying to figure out the correct way to frame the stairwell as it joins up with the floor diaphragm above.
It's hard to show exactly what I mean with sectional views, the best thing is to view the 3D model and you will see what I am talking about.
3D Warehouse
3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.
(3dwarehouse.sketchup.com)
I am working on the polygon and hole tool for I-Joist and Solid Sawn floors. When you actually frame out this opening would you just use rimboard around the perimeter as I have shown?
-
A note on the Bobtail truss. For me the height of the heel seems the first obvious important dimension, because the bobtail is used both sides to maintain an exterior wall height while lowering the standard ceiling height. At least this is how we used it recently. The other method seems tied to where the ridge is and the asymmetrical use is not normal or traditional.
-
On the stairs you can do that as a vanilla framing solution. More important will eventually be how the stairs are supported. Often there's a beam at floor level that the stringers are hung on. In other cases the stringers are just bearing on a wall or beam below. The stringer structure is deeper than you show it. That is, stair support at the top varies, but this seems good for a start. What else were you considering? You might allow for double joists where it makes sense-- some standard framing method for any hole in the floor.
-
Nice model! The textures and detail make it a clear representation.
-
I've got to fix my wife's computer today so that will probably stop me from getting any real meaningful work done on the plugins but at least I've been able to throw together a first draft for the office I want to build. Any thoughts on improving the design, sometimes once you get an idea in your head it is hard to see outside the box.
I haven't shown the doors or the front porch which will probably be quite small and pressure treated lumber.
- 32'x24'
- 5:12 or 6:12 roof with asphalt shingles
- two rooms
- 9' ceilings
- stemwall foundation with crawlspace
- carpet throughout
- 5/8" wallboard
- 3068 doors, (1) 4040XO, (3) 5040XO
- 11-7/8" I-Joists at 16" o/c
- studs DF No. 2, 2x6 @ 16" o/c
- sheathing will probably be 1/2" plywood, I don't like OSB in our climate.
- Siding Hardiplank or cedar siding, my budget may call for T11 though.
- Electric wall cadet heaters
- 50 AMP sub-panel from house
- 16" overhangs at eaves and gables with gutters and downspouts and 4" drain lines away from building.
-
Finally getting around to adding the flat trusses:
I've decided to also provide the option for a monoslope and pitched design. Advanced options won't be for a while yet. I'm still not entirely sure how to handle the gable end trusses for this truss type, what is typical?
-
All the end details are working. This is an example of a Mansard Parapet truss with 5 panels and different overhangs:
Now I just need to work on the plates and advanced options.
Advertisement