Snow Drift Design Using ASCE 7-16 FULL Example by a Professional Engineer 

perfectly splendid... yall know

I appreciate your channel. I just started a new job as a Structural Design Engineer after being out of the field for a while. I found this channel and it has been great for getting me back on track. I see asce 7 22 is changing how snow loads are done. Its actually the guy who taught me steel design in college that is heading up that snow load change: Michael O'rourke. Makes me feel better about my college education? I just need to rekindle that knowledge base. One thing i find odd is the .7 for ground to roof. If you had a roof that was 1 sqr mile, surely the snow would be the same on that flat roof as it would be on the ground. The whole thing of determining what load to put on a building is quite fascinating to me.

Dude you're freaking amazing. Checking some calcs and have never done Snow Drift before. i actually learned this beyond what i just needed to know to check, by watching your vid. 💛

Thank you very much! this was very helpful.

Thank you

Kesteva you are amazing! I've been looking everywhere for a good explanation. I didn't find any one like you. You are intelligent and I got all my knowledge from your videos! Recently I am studing for a masters in structure eng. So please keep making more videos!!

Thanks for the great content! I am having a hard time interpreting ASCE section 7.3.4 "Minimum Snow Load for Low-Sloped Roofs" would Pmin even be a design consideration for this example building? The language states "...shall only apply to monoslope, hip, and gable roofs" In your example the roof system used is neither of these. Any thoughts on the interpretation?

SO GOOD

Thanks :)

Fantastic video! Question... As a code professional, I can only enforce minimum not best practice. That said, I know drift loading should be accounted for in a building design but is there language that requires it to be accounted for?

Thanks for the great example!

Love your topics and examples. Does snow load matter in Texas?

hello, how should the snow load be calculated on multi span roofs? I couldn't find anything about it in asce7-16. Should it be calculated by the Sawtooth Roof division?

Thank you 🌹

great bud , could you please do special moment frame design process ,as its done in office Thanks for your work

Hi Kestava , if this is flat roof and surrounded by parapet the drift can happen from any side of parapet wall , so the question is if the beam along the width is 20ft , continuously so can we consider the Max40.psf through out the without dividing into parts and Triangle loads.... , i mean if whats your next step for designing a beam for this load consideration in practice Thanks

The 30 pcf value in your problem from CH 7 is a max required if you calculate more, not a minimum. If you come up with 16.6 pcf density load, you should use 17 pcf in my opinion, the point is, that 30 psf is not a minimum to analyze vs the calculated density.

First of all, thank you for your excellent explanation. Sorry in advance for my bad english. If you have projects made according to Asce 7-16 and reports of these projects, can you share them with me? or if you direct the projects to an address where I can download them, I will be very happy. Thank you from now. Best regards...

The greater of leeward drift and windward drift is used in design. Only windward drift is considered for parapet.

How about eliminating the ado, and eliminate the need to say “no further ado”.

How do i plug in the snow drift triangle into a load combination to factor the load?