Over Reinforced V/S Under Reinforced Beam Section | Reaction Test

Over Reinforced V/S Under Reinforced Beam Section | Reaction Test
A short video explaining why Structural engineers prefer Under Reinforced sections over Over Reinforced sections.
00:00 - Introduction
01:13 - Stress and Strain for Concrete and Steel
02:24 - Balanced Section
03:20 - Over Reinforced Section
04:00 - Under Reinforced Section
04:51 - Comparision
05:35 - Conclusion
05:45 - Interesting facts
06:26 - Outro
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[@nikhilraj5343]

I request you to please upload more videos like this. It's a blessing for students.

[@ReactionTest0]

Thank you Nikhil 🙌. See you soon.

[@yuvrajchavda44]

Very well explained... most helpful for students and freshers in the field of Structural engineering...
Good Work

[@ReactionTest0]

Thank you so much Sir. It is teachers like you who inspire students like us. Thank you Sir 🙌

[@dkxtro2562]

I was looking at this as a reference for game development.
We want to make more realistic environments and didn't know the difference between the X Reinforced Sections.
Very nicely explained, and the 3d modelling definitely helps the demonstration!

[@nipun8138]

EXCELLENT VIDEOS MAN, Students need content like this, keep it up👍

[@ReactionTest0]

Thank you Nipun 🙌

[@VK-fn9bh]

Finally....I got a best channel to gain knowledge.thanks sir 😊😊😊

[@anuzonienu469]

Simple and proper animation

[@ReactionTest0]

Thank you Anüzo

[@architectsacademy9147]

Very nicely explained! Great video! Thank you

[@ReactionTest0]

Thank you

[@riteshchauhan4904]

Really nice explanation with wonderful 3d animation. Thanks for sharing. Great job.

[@ReactionTest0]

Thank you for watching Ritesh 🙌

[@TheHowtoDad]

this was a great refresher. thanks for that!

[@AmitKumar-ck9un]

I just came across your channel, now its became my free time task...thanks for the content visualization.

[@ReactionTest0]

Thank you King Khan for that wonderful comment 🙌 Waiting for Pathan.

[@ralinnewaminal2340]

Thank youuu. Helped me understand better our topic on RC Beams

[@akshaypatel5477]

Finally got to understand this concept. Nice visualization

[@ReactionTest0]

Thank you Akshay

[@sumansubedi7319]

So beautifully presented!!! love from Nepal. please keep going with those animations and knowledge.

[@ReactionTest0]

Thank you Suman🙌

[@hanumanbhakt7234]

Brother the ease with which you explained this is commendable 👍

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Thank you Kapil🙌

[@randmayfield5695]

I love these instructionals. Thanks. Subbed with a thumbs up.

[@ReactionTest0]

Thank you 🙌

[@anandgor4181]

Very useful and informative video. Thanks for sharing your experience with us.

[@ReactionTest0]

Thank you for watching Anand. 🙌

[@chen6406]

Wow i love the presentation...I wasn't able to have a clear picture first bcoz I couldn't imagine it..now I have a clear understanding 👍👍👍👍

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[@civil378]

Very informative, much and much I learn and understand very effectively. Thank you brother! ❤️

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Thank you for watching 🙌

[@civilengineering4099]

Great Explanation... We will waiting your next video's 💯

[@ReactionTest0]

Thank You

[@bhargavraj9897]

First time I understood so clearly this concept.

[@prathameshsutar3195]

Thank you for this video🙇🙇

[@govindgupta3805]

Very nice video, thanks for making my concept clear

[@ReactionTest0]

Thank you Govind 🙌

[@joelmausisa1005]

Great video, my mind got refresh of what learned 23 yrs ago.

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Thank you Joel🙌

[@Deltadigit]

Liked your presentation and animation. Keep up the good work

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Thank you🙌

[@gnekotv]

amazing explanation. great job!

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Thank you 🙌

[@goggo2345]

I paid 250k for uni and I learnt more here then there 😳

[@ReactionTest0]

Thank you Krishan Raju. I'm reading this in the morning and your words made my day. Thank you 🙌

[@ThatEsque]

He can't give u degree tho

[@yesicanu]

No ladies here

[@alisrour3228]

Excellent job. Thank you for the information

[@jom_and_terry]

Imagine paying for education

[@bard2746]

EXCELLENT GRAPHICS SIR, UNDERSTOOD EASILY
THANKS

[@ReactionTest0]

Thank you for watching🙌

[@b18yogeshshrivas90]

My whole concept is been cleared thank you

[@ReactionTest0]

Happy to help Yogesh

[@reganawale6525]

Thank you so much for this information. 🙏

[@SarikaAli-cw9xf]

Thank u so much. U deserve much more subscribers

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Thank you Sarika🤘

[@santoshrawal4644]

Very very good concept keep it up

[@rajanvenkatesh]

Thank you for the informative video. I am building a load bearing house using red laterite stone and NO concrete. I would welcome a video on load and strees issues for such construction. 🙏

[@shoottimez281]

Clear Explanation 👏👏👏👏👏👏

[@MrAnubhav116]

Amazing work

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Thank you Anubhav🙌

[@satyaprakashkhuntia10]

Your explanation is very good and clean sir

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Thank you Satyaprakash 👍

[@SpicyAl3000]

Great vid! Thanks :)

[@TishyRose]

I don’t know why this was in my recommended, I don’t know anything about this stuff and I am terrible at any kind of math. But I watched this anyway because the way you say “concrete” sounds really nice in your accent, and your animations and diagrams actually made these things make sense to me and I know nothing about this stuff, so there’s proof you’ve made a great video if you can make things make sense to a dummy like me! It was very interesting :)

[@ReactionTest0]

Highly appreciate you watching it. Thank you.

[@PotatoPredator]

Brilliant video!

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Thank you Rahil

[@NakulSingh-ro8zh]

Nice video it helped me very much thankyou

[@sidhantsingh7200]

I understood exactly what I wanted... Thanks for your vedio..

[@sandeepbhagat1091]

I loved it. Good job. Keep posting such

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Thank you Sandeep🙌

[@joseprince9115]

Excellent teaching...and thanks upload more videos.

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Thank you Jose🙌

[@kennethbuluran2348]

omg you explained very well. I just came across this video. 😂

[@hamadqatar5838]

Thank you good informative discussion

[@zerozero3264]

upload more videos regularly..your videos more knowledgeable than classroom..

[@muhammadusama0071]

Very well Explained bro. 💗

[@vasukanapala8233]

Great animation detailing brother 👍

[@ReactionTest0]

Thank you🙌

[@DanishAnsari-hw7so]

Well explained!!

[@ReactionTest0]

Thank you Danish

[@habibullahhabibullah3421]

Excellent way of elaboration!! kindly upload information about doubly reinforcement beam, so we could easily compare strength working. Thanks!!

[@Koh-Wei-Jian]

In short, either rebar snaps first or the concrete at the top half of the beam suddenly crush. Ideal case is where the concrete crack becomes visible at the bottom so there is enough time to react, and in the mean time, the rebar holds the cracks
.

[@ReactionTest0]

Yup that's right. But this is for general case and educational purpose. In practice if the load is high enough, there is no option but go for Over reinforced beam as you can only increase depth to a certain amount.

[@umarsaifi9649]

Such a great effort you r put into this vedio .. thanku is a small word .....but really u made a wonderful vedio ❤️❤️

[@airwarrior_1987]

Thank you sir ✌️❤️

[@kunalbadgujar8628]

Nice explanation

[@jijo_joy_puthanveettil]

really helpful

[@umarsaifi9649]

Pls pls make these type of videos for us ... to understand and feel real engineering thanx bro keep growing

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Thank you Umar Saifi

[@editorspace9715]

Nice bro you explained very well and your voice is nice I liked your way of presentation

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[@wpresident1]

Brilliant video

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Thank you🙌

[@mdzishanansari1453]

Thank you so much sir

[@YTLegend8]

Nice information about sections

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Thank you

[@harsh-iy5sc]

very helpful video

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Thanks Harsh.🙌
I've released a new video today. Tell me what you think about it

[@anilsuryatale7458]

Graphics is very good. Easy to understand.

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Thank you Vaibhav 🙌

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Thank U very much sir,,, you are sharing good knowledgeble contents,,, today I learn 1 useful basic,,, thank U sir,,,,

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Happy to help🙌

[@neilbondad9477]

Always follow the code rules in regards to steel ratio, do not go beyond the limitations especially with large beams with long spans. Nice video mister.

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Thank you Neil 🙌

[@rameshsunkasari7017]

Good informative video presentation

[@ReactionTest0]

Thank you

[@rashidgavit2272]

I would like to say just awesome videos.....sir just try to make video of other subjects also.....and we need to know what is probability distribution curve....etc.so plz make great animation over it....it will be great helpful for us......tx sir keep doing

[@harshitkumartaiter5889]

One word for you sir
Fantastic 👍🏻

[@ReactionTest0]

Thank you Harshit for the appreciation 🙌

[@mohammadmadu]

Really a good class for my M.Tech project

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Thank you Mohammad

[@anandkumarmaurya8709]

Amazing animation

[@ReactionTest0]

Thank you Anand 🙌

[@MustafaMohammedutube]

Bhai.. everything u said is correct except the last part @6:01. Strain in steel at failure will be (0.002 + (0.87fy/Es))... Thus steel will fail before concrete crushes for under reinforced section...

[@SHIVAMGUPTA-fp2uc]

Thanku bhai ❤️

[@deepakv6241]

Thanks 🙏

[@alamamatha3349]

Nice explanation with images. Our teacher don't show the images, don't give any clarity, but you EXPLAINATION is very nice than our teachers thank u so much

[@ReactionTest0]

Thank you for watching and appreciating the effort. 🙌

[@Kiennguyen-gn4rz]

First, in under reinforced section, the failure begins with the yielding of steel before concrete crushing in top chord.
Secondly, in case when the reinforcement ratio is too low, beams might fail due to steel rebar rupture without concrete crushing at top part. These two failure mechanisms are different to over reinforced section which is needed to elaborate.

[@dearindiamotivationvideo6284]

Very informative 🙂with diagram

[@ReactionTest0]

Thank you🙌
I've also released a new video. It talks about the principles which dictate if an object will float or sink in water. Watch it and tell me what you think.

[@ajaybiradar4902]

Really good please do more videos on structures

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Thank you🙌

[@BB-hl3ro]

Excellent and very informative information even if you are in civil

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Thank you 🙌

[@akshayrathod4007]

Good information

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Very good video

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U r so under rated bro,but I am pretty sure One day U will succeed 👌

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Jo topic teachers se smjh nhi aye ajtk vo ynha smjh agya thank you... But hume Or bhi topics or subjects chahiye the pure plzz upload ❤💯

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Thank you Anjali 🤘

[@randeepsaini5491]

nice video

[@aryarawat788]

Good knowledge

[@ReactionTest0]

Thank You

[@kylestanton6698]

Great video! The only point that you brought up in this video that I would contest is that 'overreinforced' concrete beams are more costly, less economical and more dangerous. That is not actually inherently true. Firstly, you might have height restrictions for your beam depending on what you are designing, and therefore must over reinforce the beam. You don't always have the option in real world design to make your concrete section bigger. Also, AASHTO LRFD and ACI specify a reduction factor of 0.65 for concrete beams with 'compression controlled failure', and a 0.9 reduction factor for tension controlled. I don't think it is fair to say that compression controlled failure is 'more dangerous', when you have a stronger section and a lower reduction factor. If you don't believe me, design two beams simultaneously (for same maximum bending), one for compression controlled failure and the other for tension controlled. The computations will prove to you my point on that. Whether one or the other is more or less economical, is completely dependent on what you are designing. That is a common misconception that compression controlled failure is either 'not allowed' or ' inherently less economical'.

[@ReactionTest0]

I completely agree with you 100%. But I made this for students who are being introduced to this concept for the first time. So for explanation purpose I said you prefer an under reinforced section. But I don't mean to completely disregard the use of over reinforced section, they have their place like you've stated.
I hope this answers the reasoning behind my statement. Thank you for bringing this up, others might also have had this doubt.

[@kylestanton6698]

@@ReactionTest0 Yes, definitely! I thought this was a great video. Thanks for posting!

[@SavasPapasokratis]

how do you get so smart ? I just graduated and all these concepts seem difficult.

[@rudolfskrasovskis6790]

A designed height limit wouldnt result in an "over reinforced" beam. if the load requires a certain amount of reinforcement than it will be designed to such specification. an over reinforced beam would mean that it is unnecessarily strong for its intended use.

[@kylestanton6698]

@@rudolfskrasovskis6790 Correct. Sometimes people use the term 'over reinforced beam' when they mean 'compression controlled failure'. I was simply using the same verbiage that was used in the video for clarity.

[@khondokerazizulhaque357]

Superb

[@ReactionTest0]

Thanks

[@Nakshatra_02]

Thank you so much 👍

[@ReactionTest0]

Thank you Chitralekha🙌

[@Nakshatra_02]

@@ReactionTest0 most welcome

[@studypurpose9477]

Thanks

[@chirdeepnr4000]

Great video man! I will surely recommend your videos to my friends.
One correction- you have to reduce the scale of stress strain curve of concrete with respect to steel.. Because, steel has higher yield stress value compared to concrete.

[@ReactionTest0]

Thank you Chirdeep🙌

[@wrazni]

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[@harshaa.b9103]

Very nice video. Loved it!! Can you please show how to check if a beam is under-reinforced or over-reinforced at site?

[@ReactionTest0]

Thank you for that wonderful comment Harsha. There is no non destructive way of checking if a beam is over or under reinforced. You have to check the design of the member to confirm the type of beam design.

[@ashbeelrashid1038]

Well I must say we have learnt alot.

[@ReactionTest0]

Thank you Ashbeel🙌

[@DrGathimba]

Great vid. kudos. Which software do you use to create these type of videos, if I may ask? Otherwise keep up the good work

[@ReactionTest0]

Thank you 🙌. Animations are made with blender. It is sn animation software.

[@DrGathimba]

@@ReactionTest0 They are great.

[@akshit6795]

Best video to explain via animation 😊 #civil engineering concept

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Thank you Akshit 🙌

[@akshit6795]

@@ReactionTest0 sir. Aage bhi continue kro
Bnao Orr video
Regarding SURVEY HIGHWAY SOIL B.M.C

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@@akshit6795 Haa, working on a video related to ETABS. Will post next week. Stay tuned

[@civilbrains]

very Nicely explained . good presentation. Btw how u prepared this. which app we should use ?

[@ReactionTest0]

Thank you buddy

[@ReactionTest0]

It's a software called blender

[@civilbrains]

@@ReactionTest0 ok . gud

[@vishalgharu8904]

that concept is clear Today

[@rajeshchhabra7654]

Great

[@ychodneker]

Nice explanation 👍.
Do you use blender for making such beautiful animations ?

[@ReactionTest0]

Yes, I do use blender.

[@ychodneker]

@@ReactionTest0 Thank you for your response.

[@casanova6734]

When the compression zone is "stronger" than the tension one, I would talk about an overdesigned compression zone, rather than an under reinforced beam.
Similarly when the tension zone is "stronger" than the compression one, I would talk about an underdesigned compression zone.
The reference that has to be taken into consideration is the value that was calculated. From there, if some reinforcement is added, which I would call overreinforcement, the only problem it results in is the additional cost. Not the risk of brittle failure of the compression zone. If this happens, the problem is not the over reinforcement but the under design of the whole.

[@ReactionTest0]

I agree with what you are saying, but the decision of whether to provide an over or under reinforced beam depends primarily on site conditions and practical restrictions. An under reinforced section is preferred for its lower cost and safety factor(If higher depth beam is available) an over section is chosen when there are depth restrictions.

[@NakulSingh-ro8zh]

Good animation with fluent and nice accent keep making such type of videos

[@ReactionTest0]

Thank you Nakul.🙌

[@md.sabbirhossain7839]

Helpfull

[@ReactionTest0]

Thanks

[@wrazni]

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