Wind Loads on Lean-to frame systems of existing industrial warehouse 2

[seenote2]

I am analyzing an existing warehouse to replace the cladding on it annnnnnnd it's failing. Specifically the lean to portion. I applied the wind load on the lean to as if it is a monoslope roof per ASCE 7-10 MWFRS. I am wondering if this is correct. I have read in this forum (

https://www.eng-tips.com/viewthread.cfm?qid=410681)

that you only apply vertical loads on the lean to and the main building will take care of the lateral loads. This does not make sense to me because wind doesn't just disappear nor does it bypass the lean to and hit the main building. Any assistance would be appreciated and references would be doubly appreciated.

 

[r13]

I share your concerns, unless the lean-to is open around 3 sides.

 

[KootK]

This does not make sense to me because wind doesn't just disappear nor does it bypass the lean to and hit the main building. Any assistance would be appreciated and references would be doubly appreciated.

Trust your instincts on that. The load paths through the elements are just as you would expect them to be based on first principles. The lean to structure simply relies on its connection to the main building to resist the racking tendency that results from lateral loads and P-delta instability. No magic. I named my favorite references in the thread that you linked to so I'll not repeat those here.