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
texturehaven.com/
freepbr.com/
www.freepik.com/vectors/backg...
Thumbnail vector("vs") created by starline - www.freepik.com
Play store link:
play.google.com/store/apps/de...
Become a Patreon:
/ reactiontest
Let's discuss more on reditt at:
/ reactiontest
Twitter hande : / testreaction

[@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 🙌

[@ralinnewaminal2340]

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

[@nikhilraj5343]

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

[@ReactionTest0]

Thank you Nikhil 🙌. See you soon.

[@TheHowtoDad]

this was a great refresher. thanks for that!

[@VK-fn9bh]

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

[@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.

[@sumansubedi7319]

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

[@ReactionTest0]

Thank you Suman🙌

[@riteshchauhan4904]

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

[@ReactionTest0]

Thank you for watching Ritesh 🙌

[@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 👍👍👍👍

[@ReactionTest0]

Happy to know we were able to provide you value🙌

[@civil378]

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

[@ReactionTest0]

Thank you for watching 🙌

[@hanumanbhakt7234]

Brother the ease with which you explained this is commendable 👍

[@ReactionTest0]

Thank you Kapil🙌

[@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. 🙏

[@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. 🙌

[@joelmausisa1005]

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

[@ReactionTest0]

Thank you Joel🙌

[@bard2746]

EXCELLENT GRAPHICS SIR, UNDERSTOOD EASILY
THANKS

[@ReactionTest0]

Thank you for watching🙌

[@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.

[@Deltadigit]

Liked your presentation and animation. Keep up the good work

[@ReactionTest0]

Thank you🙌

[@reganawale6525]

Thank you so much for this information. 🙏

[@civilengineering4099]

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

[@ReactionTest0]

Thank You

[@habibullahhabibullah3421]

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

[@prathameshsutar3195]

Thank you for this video🙇🙇

[@architectsacademy9147]

Very nicely explained! Great video! Thank you

[@ReactionTest0]

Thank you

[@akshaypatel5477]

Finally got to understand this concept. Nice visualization

[@ReactionTest0]

Thank you Akshay

[@gnekotv]

amazing explanation. great job!

[@ReactionTest0]

Thank you 🙌

[@sandeepbhagat1091]

I loved it. Good job. Keep posting such

[@ReactionTest0]

Thank you Sandeep🙌

[@b18yogeshshrivas90]

My whole concept is been cleared thank you

[@ReactionTest0]

Happy to help Yogesh

[@zerozero3264]

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

[@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.

[@bhargavraj9897]

First time I understood so clearly this concept.

[@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.

[@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...

[@SarikaAli-cw9xf]

Thank u so much. U deserve much more subscribers

[@ReactionTest0]

Thank you Sarika🤘

[@govindgupta3805]

Very nice video, thanks for making my concept clear

[@ReactionTest0]

Thank you Govind 🙌

[@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

[@umarsaifi9649]

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

[@shoottimez281]

Clear Explanation 👏👏👏👏👏👏

[@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. 🙌

[@anjalivishwakarma0517]

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 ❤💯

[@ReactionTest0]

Thank you Anjali 🤘

[@hamadqatar5838]

Thank you good informative discussion

[@satyaprakashkhuntia10]

Your explanation is very good and clean sir

[@ReactionTest0]

Thank you Satyaprakash 👍

[@joseprince9115]

Excellent teaching...and thanks upload more videos.

[@ReactionTest0]

Thank you Jose🙌

[@kennethbuluran2348]

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

[@muhammadusama0071]

Very well Explained bro. 💗

[@umarsaifi9649]

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

[@ReactionTest0]

Thank you Umar Saifi

[@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

[@MrAnubhav116]

Amazing work

[@ReactionTest0]

Thank you Anubhav🙌

[@santoshrawal4644]

Very very good concept keep it up

[@mohammadmadu]

Really a good class for my M.Tech project

[@ReactionTest0]

Thank you Mohammad

[@PotatoPredator]

Brilliant video!

[@ReactionTest0]

Thank you Rahil

[@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.

[@vasukanapala8233]

Great animation detailing brother 👍

[@ReactionTest0]

Thank you🙌

[@DanishAnsari-hw7so]

Well explained!!

[@ReactionTest0]

Thank you Danish

[@airwarrior_1987]

Thank you sir ✌️❤️

[@sidhantsingh7200]

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

[@VAIBHAVSPAL]

Aj Tak Aisa Video Nhi Dekhaa Bhai..Great Job 👍☺️

[@ReactionTest0]

Thank you Vaibhav 🙌

[@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]

great explanation
plz i’m looking for structural engineers specialized in rcc , has good knowledge with rcc structural software
walid
kuwait

[@rameshsunkasari7017]

Good informative video presentation

[@ReactionTest0]

Thank you

[@NakulSingh-ro8zh]

Nice video it helped me very much thankyou

[@editorspace9715]

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

[@ReactionTest0]

Thank you so much for the compliment. 🙌 And thank you for watching. Highly appreciate it.

[@SpicyAl3000]

Great vid! Thanks :)

[@kunalbadgujar8628]

Nice explanation

[@wpresident1]

Brilliant video

[@ReactionTest0]

Thank you🙌

[@mdzishanansari1453]

Thank you so much sir

[@jijo_joy_puthanveettil]

really helpful

[@SHIVAMGUPTA-fp2uc]

Thanku bhai ❤️

[@harshitkumartaiter5889]

One word for you sir
Fantastic 👍🏻

[@ReactionTest0]

Thank you Harshit for the appreciation 🙌

[@YTLegend8]

Nice information about sections

[@ReactionTest0]

Thank you

[@BB-hl3ro]

Excellent and very informative information even if you are in civil

[@ReactionTest0]

Thank you 🙌

[@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.

[@brahmatejaballipalli3392]

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

[@ReactionTest0]

Happy to help🙌

[@light9574]

how about comparision standard to compare over and balanced ? Eurocode or ACI 318

[@Nakshatra_02]

Thank you so much 👍

[@ReactionTest0]

Thank you Chitralekha🙌

[@Nakshatra_02]

@@ReactionTest0 most welcome

[@dhananjayr.shinde1153]

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

[@ReactionTest0]

Thank you Dhananjay. It means a lot! 🙌

[@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.

[@ReactionTest0]

Thank you Neil 🙌

[@harsh-iy5sc]

very helpful video

[@ReactionTest0]

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

[@anuzonienu469]

Simple and proper animation

[@ReactionTest0]

Thank you Anüzo

[@ajaybiradar4902]

Really good please do more videos on structures

[@ReactionTest0]

Thank you🙌

[@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.

[@anwar_staadworks]

Hello brother. Like your concept. Can you tell by which software these animation are made. I want to make mechanical videos

[@ReactionTest0]

Thank you Anwar🙌
The software is called Blender.
And, I've just released a new video. Watch it and tell me what you think about it

[@wrazni]

great explanation
i’m looking for structural engineer specializing in rcc design
with knowledge of structural software
like safe
e tab
walid
kuwait

[@aryarawat788]

Good knowledge

[@ReactionTest0]

Thank You

[@aliqadri4672]

Sir if we provide same dia and amount of steel in top and bottom in beam so how do beam react at ultimate load does this thing is ok or safe ...??? Does beam shows crak before fail..??

[@ReactionTest0]

More context is required to give any answer. For example, what is the magnitude and nature of load, the section size, bar size, grade of concrete and steel, etc. Manual design checks are then required to ascertain safety.

[@akshit6795]

Best video to explain via animation 😊 #civil engineering concept

[@ReactionTest0]

Thank you Akshit 🙌

[@akshit6795]

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

[@ReactionTest0]

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

[@rabianoor9050]

Very good video

[@ReactionTest0]

Thank you Rabianoor 🙌

[@DR-rg1sl]

Which can take more load sir ??

[@PRIYANKA-fz9qq]

Sir it's a great video
Please provide such videos for full steel RCC som and other subjects
And if there is paid services then also let me know

[@ReactionTest0]

Thank you Priyanka.
Are you asking for SOM lectures?

[@aliqadri4672]

If we make stronger concerete ratio in over rienforced beam so does it act like under rienforced beam ? and does the strain or yield of beam get high or stronger ..????

[@ReactionTest0]

Great question, but there is no absolute answer to this. It is relative and depends on the load, area of steel provided initially and the increase in concrete grade.

[@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

[@yousafkhan7622]

Bro.new subscriber here! Mera Q hy ke hard starta soil par load bearing type house keliye strip foundation magar without reinforcment banana hy tu kia strip foundation without reinforcment 40feet long 2 feet deep 2 feet wide bana sakte hy??

[@ReactionTest0]

Thanks for subscribing bro.
Cannot comment without looking at soil bearing capacity, no. of floors, plan area, wall thickness, type of bricks, etc

[@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.

[@anandkumarmaurya8709]

Amazing animation

[@ReactionTest0]

Thank you Anand 🙌

[@syedarsalanali8506]

Wonderful explanation.. Kindly tell which sofware used for the graphics and animation?

[@ReactionTest0]

Thank you. It's a 3D software called Blender.

[@syedarsalanali8506]

@@ReactionTest0 great.. Can you please make a tutorial on that how these kind of animations can be made by Blender.. Please its a request... Thanks brother..

[@akshayrathod4007]

Good information

[@ReactionTest0]

Thank you Akshay 🙌

[@md.sabbirhossain7839]

Helpfull

[@ReactionTest0]

Thanks

[@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.

[@deepakv6241]

Thanks 🙏

[@TejasPatilArchtiects]

Was a great video and explanation. Just i want to add that can you please improve reading tone and it's speed n all. Thank you for explanations.

[@ReactionTest0]

Thank you Tejas for that suggestion. 🙌
Do you want the narration slower or faster?