RV Garage Shear Wall Design

[RockyDiego07]

Hello,

This question is in regards to a simple 41ft long x 17ft wide x 17.58ft tall RV garage.
Not sure how to do the shear wall for at the large opening (12ft wide x 14ft tall), without doing a Simpson Strong-Wall.
I can't seem to do a portal frame per the IRC, the IRC limits this to 10ft max wall height and 12ft max total height. My heights are exceeded. Same thing with the portal frame per IBC.
I can't use the SPDWS, because my aspect ratios are way above 3.5. The walls beside the opening are 2.5ft wide. Even taking just the clear height, 14ft/2.5ft = 5.6.
I can't do an open front structure (w/ a cantilevered diaphragm), the diaphragm aspect ratio is 41ft/17ft = 2.4, which exceeds the 1.5 limit. Plus the 41ft exceeds the 35ft max limit for the cantilevered diaphragm.
The framer claims he rarely uses Simpson Strong-Wall in these "simple" structures. Is there any other way to laterally engineer this, specifically the walls around the opening, to satisfy the code, without the use of a Simpson Strongwall?

[URL unfurl="true"]https://res.cloudinary.com/engineering-com/raw/upload/v1668806094/tips/RV_Garage_Sketch_qemwvo.docx[/url]




Thanks!

 

[driftLimiter]

Hmm. Although the framer is probably telling the truth, that doesn't mean its the right thing to do.

I've seen some guys who would treat the wall above the opening as a single pier, and the walls adjacent the openings as separate piers. But with this you would still want the piers to all meet AR requirements.
Never quite understood the rationale behind this. Definitely requires a full width collector at the opening header height.