Some relevant ACI 318-14 references if you want to see things in the code: Vc Equations: Table 11.5.4.6 Vcmin: 22.5.5.1 Vs: 22.5.10.5.3 Asmin: 18.10.2.1 (Requirements for special shear walls) Spacing: 18.10.2.1 (Having a hard time finding the lw/3 and 3h requirements quickly)

Thank you for your very energetic video. watching from Philippines

Dear Professor Ley please provide a numerical example thank you

This is the coolest part about blueprints "use the longest value"😅

Watching this at 2:30am, I was ready for the energy lol

You are really amazing, you make people to understand structural design easily, I wish I can learn using ETABS for design more in easy way from you Professor

I was just saving your videos to my concrete folder, now I realize that was wasted time because they're ALL GREAT! Therefore, to say thanks, I bought one of your Tshirts. I can't believe I'm going to go walking around with mud recipe on my shirt!

praiseworthy

Thank You for sharing your knowledge.

Dear Dr. I have question about footing dowels, if the building is a high-rise building ( like 30 stories) then the footing dowel length is governed by tension development length rather than compression development length (ACI 318-19 Section 25.4 ). That's because of overturning moment from lateral loads is governing the design over gravity dead load. Do you agree? I think so because ACI 318-19/ 18.13.2.2 "Longitudinal reinforcement of columns and structural walls resisting forces induced by earthquake effects shall extend into the footing, mat, or pile cap, and shall be fully developed for tension at the interface."

Thanks for the simplification engineer

Would you consider adding the reference of the equation you used from the code that they are from?

I have a question, if we consider the Wall a big big column, then why don't we use the interaction diagram and use the related capable moment diagrams, Thank you?

Sorry I am confused. How is h being of that dimension? thats a short and broad wall

but we may have a different load direction, with different moment each, how we can design our shearwall at this case ? conisdering the most severe case and design as the load acting simultaneously in each direction ?

Know this probably sounds stupid but.. I am in Jamaica. I want to know if there are special design considerations for building a cement roof compared to a deck? I mean, should I space the rebar differently, incorporate more beams into the design? What pitch might be best? Trying to look at ways to avoid wood and corrugated steel roof if possible due to the duckants and termites problems... Thanks.

how did you get the loads on the wall?

In the big long Vc equation, you use 0.21*Nu/lw*d, but ACI shows it as 0.2*Nu/lw*h. It makes a fairly significant difference in the capacity of the concrete in shear. Am I looking at something wrong?

Professor Ley, I just subscribed to your channel and plan to watch most of your 264 videos. I am a retired IT Tech in Texas and know absolutely nothing about concrete, so this is probably ridiculous. But I really must find out how someone can exhibit your level of enthusiasm about liquid rock. I can already see that there is more to this than mixing aggregate with cement and pouring it into forms to watch it dry, so I hope to learn a lot... go slowly, please. 😏

where do we get the equation for c/lw? as well as alpha and w? are these somewhere in the aci code?

Not related to this video but interested on your thoughts about the use of large spheres (plastic balls) in flooring slabs

Thank you,that is helpful. But,if you can provide examples with SI untis,it would be great!

Dear prof tyler Ley You are appreciated for sharing your knowledge Can you please make a video on a step by step manual design of a simple story building sir

Thanks

Hi dear professor, is there any book about how analysis and design shear and concrete wall in detail? thanks for your answer

Do you have a video on basement walls? soil pressure plus axial loads. Thanks

do u have an idea about the pool wall?

Hello Maister ;). Can u show us the method how to calculate As for RC slab placed on Winkler surface(slab on grade)? I found only complcated solutions and FEM methods. In some articles there were also conclusions that concrete shrinkage only in that cases matters, this is of course wrong cose slab on grade has stress/strain capacity.

All of these are in the English Units ?? I hope you could share for ACI in the SI units in the future.

Hi i just wanted to ask, for our floor plan in an industrial building, how thick should be our wall?

Sir please make video on selection of bridge bearing.

Can you Talk bout tensegrity Structures

Please take this class according ACI318-19

Can you add where you are getting the equations from the ACI? Which chapters ACI 318-19?

whats the deal with the really loud BING????????????? 5:05

Please use subtitle indosesia

Big fan of your channel. I am a contractor that would like to learn more about load calculations for residential construction. Do you have a 101 playlist you can recommend?