3-Foot Professional Garage Lift

[MUDZLLA]

Is the sheathing structural? Basically creating a shear plane?

As I mentioned earlier, I've seen situations like that where the wall has "folded" at the joint between walls - typically due to wind load. Or, at least, the wind issue was what started the issue. I've also seen a similar issue where a knee wall was built at a partial second floor where the roof ties into the knee wall and the lateral load pushes it over.

The sheathing is not continuous at the joint so is not structural. You can treat the joint as a hinge however and consider the wall as a beam with a continuous loading (wind pressure) on one side. You resolve the loading into a moment at the joint which must be counteracted by the vertical strapping. Knowing the force across the strapping you divide it by the cross sectional area to determine the stress which cannot exceed 1/3rd of the yield stress of the strap - about 60 kpsl. Everything else is gravy.

 

[PAToyota]

As you say, the calculations have been done. It just seems like the strap would bend rather than yield with a joint at the outside. Also, that by the time you start getting enough load to have the through bolts and other fasteners fail, you likely have other portions of the structure that will fail first.

 

[ace10]

Did an engineer stamp that framing design or was this some sort of negotiated approval with the AHJ?

 

[MUDZLLA]

Did an engineer stamp that framing design or was this some sort of negotiated approval with the AHJ?

It was stamped. The height of the wall and footprint of the structure put it outside the municipal and building codes.

 

[MUDZLLA]

As you say, the calculations have been done. It just seems like the strap would bend rather than yield with a joint at the outside. Also, that by the time you start getting enough load to have the through bolts and other fasteners fail, you likely have other portions of the structure that will fail first.

The outside edge is in compression. The inside edge in is in tension. Shear is taken by the bolts and A23 angles.

Next crisis on the agenda... pumping grout into the voids.

 

[PAToyota]

The outside edge is in compression. The inside edge in is in tension.

Well, except on the leeward side...

 

[MUDZLLA]

Just a follow up on the concrete floor coating. Below are the before and after (one year) of use. Even with cleaning, etching, 2 coats, etc per directions this Rustoleum Product is just flaking off. I don't know if anyone has experience with a better coating product for garage floors?

 

[prwillard2]

Just a follow up on the concrete floor coating. Below are the before and after (one year) of use. Even with cleaning, etching, 2 coats, etc per directions this Rustoleum Product is just flaking off. I don't know if anyone has experience with a better coating product for garage floors?
View attachment 3905483View attachment 3905484

wow does Rustoleum have a warranty? This is not a good look for them.

 

[ace10]

I think DIY coatings have a well-deserved poor reputation.