The Secrets of Efficient Reinforced Concrete Structures
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- čas přidán 28. 06. 2024
- The efficient design of reinforced concrete structures can feel like it is a secret as it isn't something that you will find in concrete design textbooks. I will go through my secrets for efficient concrete structures; these secrets for efficient design have taken me time to develop working as a structural engineer. They do not require any complex structural analysis but will provide a simple guide that you can apply to any reinforced concrete design.
Reinforced concrete is a broad topic, so to ensure a concrete structure is efficient, I will be covering columns, walls, and slabs. guiding both reinforced concrete and post-tensioned design.
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Chapter
00:00 Intro
00:30 Supports and Transfers
02:16 Concrete Columns and Walls
03:55 Movement Joints
04:49 Spans - Slabs and Beams
05:46 Reinforcement
06:22 Penetrations
07:29 Post-Tensioning
Hi Brendan, another great video.
Could you please clarify between kPa and MPa at time 8:30. The text says kPa but you said MPa.
Kind Regards,
Hi Timothy, thanks for the pick up it is MPa(Nmm^2) not KPa. Picking up issues like this is really helpful thanks, your comment has been pinned.
Thanks very much appreciated ur videos.
Fun fact (applicable in Australia), If a column plan size is larger than 1m^2 it has to be subtracted from the floor plan when selling the apartment. If you make the column 0.99m^2 then you can ignore it and have a "bigger" apartment size to put on a marketing brochure to sell.
In that case, its worth pumping concrete and steel into it to make it smaller. This was a few years ago - not sure if still the case now.
Fun facts are always great, NLA are always import to think about in your design but then this is a it does come at a cost of reinforcement.
The effort you made to make this very insightful and professional video quality is highly appreciated. An important issue in having an efficient RC or any structure is participation of structural engineer in early stages of the project phase. A structurally inefficient layout can't be made efficient by a sophisticated structural modelling, analysis and design. Please consider durability , maintenance of existing structures in future videos. Thanks Mr. Berndan.
Hi Mussie, thanks for watching and support. Agree that Efficient design of any structure starts with a good concept, this requires some structural input to guide the decisions. I will add the suggestions to the list thanks.
Amazing video Brendan! Super easy to follow and really great tips.
Hi Mihdi, thanks for watching and your support.
Thanks Engineer
It is hard to find Engineers in the industry who's willing to give time and such valueable knowledge.
Again thank you and please continue what you are doing
Hi Abdullah, thanks for your support. I will keep it up as long as I can, I really enjoy it.
thank you, Brendan, great material. waiting for one on steel design now.
Hi Tentomek, I do have the rules of thumb of steel design czcams.com/video/agfPQQCLC7Q/video.html and the golden rules for steel czcams.com/video/KWnBNf1INfs/video.html just need to do one the efficient steel design.
Great Muhtram Brendan Hasty! Very Well Concepts you have given us.
Thank you for your support!
Great video Brendan! Super informative and concise 👍👍👍
Hi Duyen, Thanks for watching and support.
Hey Brendan, this is another great one.
Would be able to explain on application of strength or stiffness reduction factors please.
That’ll be great thanks!
Great video, I really liked the way you discussed the topics (and obviously I've found them extremely interesting).
Have a nice day Brendan
Hi Tonio, your continued support has been really encouraging, thankyou. Glad that you enjoyed the video. Have a great day too.
Wonderful knowledge session thank you
More substantive & detailed videos like this please 👏🏾👍🏾
Hi Robert, Glad that you enjoyed this, I plan to.
Thank you Brendan. I am sure these video are helpful for young engineers.
Thank again. I am a fan of you.
Hi Hung thanks for the support.
Thanks Brendan. It will be great to have an ebook on this topic.
Hi Suiabou, thanks for your support. I am working on a book also thanks for the suggestion.
This is so amazing and useful ❤
Glad you think so!
Thanks Brendan for another great video. I think you are aware of audio and text not matching with each other for P/A.
Thanks prabin, yes MPa is correct. Not what is on the screen. Soo close to being perfect.
Excellent video.
Thanks for the support Barry
U the man.. Brendan..
Hey man I need ur assistance, how to contact you , pls can I get ur email or numbr
Thank you for sharing such important informations. Your videos helps me alot.
Looking forward to work with you one day😊. Lots of love from India😊
Hi Karan Saini, glad that i could help. Hi From Australia.
Thanks too much. I hope that you make more videos talking about details of design
Hi Mohammed, thanks for watching, there will be more videos around design.
Thank you so much 🙏🙏
Thanks for the support.
Hei Brenden another superb video, can you do a video on reinforcement detailing, in a bit more deeper? Thank you.
Hi Deepak, thanks for your support. Reinforcement detailing would be a great video. Just need to work out how to get video of real world examples.
Liked n Subscribed ❤❤❤😊😊😊
hey mate love your videos. wondering if you could do a (say) 5 part series where you design a v simple steel and or concrete structure from scratch to completion. cheers and keep em coming.
Hi Alian, thanks for watching and the suggestion. I will need to work out a way to make it engaging but it should be a great topic.
@@BrendanHasty cheers
Hey mate...liking your videos. Theyre great. In this one on the post tensioned you were saying Mpa and the graphics said Kpa..maybe i heard wrong?
Hi Adam, thanks for the support. You heard correctly and MPa is the correct units, the text was wrong. Sorry for any confusion really need to stop edting until 2am.
I am in love... we have the same favourite textbook.♥
Hi Bruce, thanks for watching they are good books
Great video,
Thanks for watching, and your support.
@@BrendanHasty Hi Brendan, is there a chance you could do a video on AS5100 bride design.
👍🏻always great🙂
thanks again Civil Idea, always good to see return viewers,
super awesome content!
I agree with shifting of the column inwards to have cantilevers to balance the sagging moments in adjacent beams. especially for high rise plates. but i never knew the 1/3 span rule and would this have an effect if column size is 2.5m diameters (stiffer than floor beams), beam size 0.4x1.0m and span length is 10m?
Hi David the columns would effect this. As moment is pulled into the column the stiffer the column the smaller the cantilever, for efficient design. But it would be relative stiffeness column vs slan/beam.
Wow what a great explanation... please help me in design of building using ETABS
I will likely be putting together a course next week 2022. Look out for that at the moment there should be alot of youtube videos.
Looking for some analytical videos, like design of flat slabs, p-delta analysis procedure, concrete filled steel hollow tubes,design of cruciform steel columns, design of a base plate under moment and axial force, bolted moment/shear connection, etc...
These videos are great, insightful, but some sections are not very evident, even after codal guidelines... Looking for some clarity from a guy like you.
Oh man, that is a beaten up copy of Warner Rangan and Hall - you know its about to get real when the big orange book of doom comes out to play, haha. Love the content, keep it up - regards, fellow struccie from Perth
Hi Chickenhawk, Great to hear from another Aussie. Agree when it comes out there is some serious design work to be done.
Hey, Brendan. Massive Thanks for the video. Btw I was wondering why there aren't textbooks that teach students how to design RC building efficiently? Like what you said, for some reasons most textbooks at college are heavily theoretical or don't teach the design efficiency that much. It would be better if there was a textbook written by practitioner engineer for junior engineer, so that this important stuff do not only have to be transmitted through experience.
Hi Gerardo, thanks for your support. From what I have found most textbooks are purely theoretical, and it is important for all engineers to know. glad that this video has filled the hole in knowledge.
Yes there should be practical oriented books so that no one would be unemployed
Plz a make a video about 2 way slab designs using software.
Hi Civil Engineer, I may go into two slab design by hand, just need to work out a way to make it entertaining.
Good day Brendan, thank you very much for wonderful materials you are putting out here 🤩🤩🤩❤️
is there any possibility that i become a member of your consulting team, i really have too much to learn, me being part of your team, will definitely make me a great civil engineer like you
I dont make the hiring decisions. However, hope to work with you one day.
great video , commenting for the promotion of this department
Hi Shazeb, thankyou for your continued support.
Do you mean more efficient (faster, easier, cheaper) to build? I can understand why the first would be more efficient (maintaining the same grid throughout the height of the building) but I don't understand the advantage of the second (moving the column away from the column edge to introduce a cantilever)
Hi Neuron, it depends, no transfers is quicker cheaper and easier. Canterlivers helps balance the moment better the top and bottom of the slab(assuming you haven't increased the building size) also helps balance deflection as the cantilever will pull the back span up.
It's amazing how easily the experience is being shared with other professionals now compared to when I was a novice engineer
Is it true you just need to know minimum reinforcements
minimum reinforcement is required to prevent a brittle premature failure due bending or tension it is also to control cracking
Sir I had graduated my B tech. Civil engineering in India
I m intrested to complete my master's in Australia
So please guide me for which subject I have to choose in master's & which has growth in Australia
if you are looking a masters, study structural dynamics it will be something you use a bit.
I find that almost every mechanical engineer insists on punching holes in the slab right next to the columns and as much as I try to steer them to the green zone they refuse. As if on principle.
Hi anon, thanks can happen. It can sometimes be a architectural restriction. So worth discussing with the architect.
A facility design (residential or light commercial) from scratch to final detailing (as per the prevailing code) including all elements (foundation, slab, beams, columns, bracing, etc.) would offer a good piece of learning. Kindly consider my request.
Hi, Fammaz thanks for the suggestion. I will put consideration on doing this, similar has been requested several times. It is good to see interest in it.
Hello, can I interview po. May I know if you are free po.
I did not understand...Flat Slab concept...
I can overbuild my house to survive ASTEROID hit.
Engineering saves me money so i do have to survive it!
Seem like over design for a normal building that would need to cover multiple situations.
Liked n Subscribed ❤❤❤😊😊😊