how to calculate steel quantity in beam - engineer boy- civil engineering

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6 жыл бұрын

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Пікірлер: 105

@muhammadebrahim93 5 жыл бұрын

wow dear v nice good wishes ahead

@EngineerBoyOfficial 5 жыл бұрын

thank you dear for joining us...

@jagdeezlal3982 3 жыл бұрын

Hi Engineer Boy, you are the best. Only 2 Engineers teaching Civil Eng. on U tube gives the correct calculation for the bent portion of a crank bar. One don't need trig. calculations to know that a 45 degree triangle ratio is 1to 1 to the squareroot of 2 which is1.414 and not 0.414 ( 0.42 ).I am a Aircraft Mechanic building a 3 story house in Guyana, so i look for technical info. here, but i found that engineers have different standards. Iam confused where to place lap length on the bottom bar of a continuous beam, the same engineer gives an opposite answer at his next lecture. Thanks for correcting that 0.42d to 1.42d. Jagdeez Lal.

@AbdellaMahmud 6 жыл бұрын

Thanks a lot professor. You are the best may Allah preserve you.

@EngineerBoyOfficial 6 жыл бұрын

ameen......welcome dear... happy to see such a good comment

@kondwanimbulo9260 3 жыл бұрын

straight forward stuff. great video

@EngineerBoyOfficial 3 жыл бұрын

Enjoy dear 💜💜💜

@GM-qw9pc 5 жыл бұрын

Excellent ❤👍

@rajadhikari2899 5 жыл бұрын

Uplod vedio on calculation the quntity of material in aquduct

@md.mizanurrahmanmanik8122 6 жыл бұрын

all of your video helpful for us...thanks you.

@EngineerBoyOfficial 6 жыл бұрын

welcome dear..

@md.mizanurrahmanmanik8122 6 жыл бұрын

+Engineer Boy please give me retaining wall rod calculation video..... advance thanks

@rashmimanjmdar5671 5 жыл бұрын

How to calculate which nu of striuup rewuired

@faheemkhan-ic4cz 5 жыл бұрын

The all dimension should be in same unite

@ABDULREHMAN-fv9uh 4 жыл бұрын

Your english is very good and abive this your teaching skilld are excellent keep uploading videos 🤗🤗

@EngineerBoyOfficial 4 жыл бұрын

Thank you! 😃

@frogswell8964 2 жыл бұрын

Hello there !! Are there topics on *Continuous & Cantilever Beam* ?

@kushalsagara6861 4 жыл бұрын

Beautifully explained sir, please please could post plastering quantity survey

@EngineerBoyOfficial 4 жыл бұрын

thank you, plastering quantity calculation is already been uploaded,

@pariansou1426 3 жыл бұрын

What is the formula D²/162.162 stand for?? Why u use the formula D²/52.9??

@EngineerBoyOfficial 3 жыл бұрын

Both formulas are used to work out steel bar weight in kg. D in above must be in mm where D in below must be in 1/8th of inch. Check the same playlist for derivation.

@AnimeEdu 6 жыл бұрын

Good video...

@EngineerBoyOfficial 6 жыл бұрын

thank you dear

@tarekhilo5027 4 жыл бұрын

Hello, thank you for sharing the lecture. Is this calculation method suitable for longer beams? Is it suitable to make calculations for a 12meter long?

@EngineerBoyOfficial 4 жыл бұрын

Yes you can use this method for any type of beam

@rudolphc6830 5 жыл бұрын

Thanks for this video, really help full .

@EngineerBoyOfficial 5 жыл бұрын

most welcome dear

@perezcarladrian3612 4 жыл бұрын

What is the topic in reinforced concrete design the formula you use? Thank you for answers

@EngineerBoyOfficial 4 жыл бұрын

i did not understand your question

@kamaumarcus337 11 ай бұрын

very good explanation sir 👏

@EngineerBoyOfficial 11 ай бұрын

Thanks and welcome

@akshayt9854 5 жыл бұрын

Plz make vedio on calculations of material required for slab ( cement sand aggregate )

@EngineerBoyOfficial 5 жыл бұрын

already available

@imransohail2137 6 жыл бұрын

good luck

@sultaneducatx2630 6 жыл бұрын

jnb ap ki tmam vedios bht helpfull hain Ap bht clearly smjhaty hain mjy mery mtlb ki har vedio yahan se hi milli

@EngineerBoyOfficial 6 жыл бұрын

thank you for joining us... dira dira manana... mihrabaneee g

@EngineerBoyOfficial 6 жыл бұрын

thank you for joining us... dira dira manana... mihrabaneee g

@sultaneducatx2630 6 жыл бұрын

Beam and frame k slope deflection method k tutorial upload krin plz

@tarifkhan2210 6 жыл бұрын

sultan academy accha video banao

@GetKnowledgeByYasir 5 жыл бұрын

@muhammadbilal7389 5 жыл бұрын

should the diameter is not divided by 8 during weight calculation ?

@drsadaf8114 Жыл бұрын

That formula has factor 52.09 that is to be used with number of bar.that gives kg/ft then multiplied with total lengh 4 total wt. If u use 6/8 ,factor in denominator is changed.and weight obtained would b kg per inch. There is also a table that u can google gives u weight per feet for specific dia of bar that u can multiply with total lenght 4 total wt.

@umeshbhangare6958 6 жыл бұрын

I think hook Should need to be *by 2*9d

@EngineerBoyOfficial 6 жыл бұрын

9D is for both. 4.5D for one and 4.5D another one So 9D for both. Thats why i do not put 2 there. Thank you for joining me.

@anilkhadka1615 5 жыл бұрын

how dia comes 6/8 ?

@sainadhetikala7806 4 жыл бұрын

Sir Give me answer pls ......

@drsadaf8114 Жыл бұрын

I in has 8 sotar. We divide by 8 the number of bar so 6/8. For any number of bar to use in inches divide number of bar by 8 ,like for #3 diameter is 3/8 #4 is 4/8 #5 is 5/8 #6 is 6/8 For #8 is 8/8 that is 1inch For #7 is 7/8 etc So on

@drsadaf8114 Жыл бұрын

Number of bar repreasent dia of bar in sotars .#6 means 6 sotar .1"=8 sotar. To convert sotar to inch divide by 8.

@SaurabhBhaisare. 5 жыл бұрын

For Cut length of bent up bars you calculate L/4 =10/4=2.5’ Here concrete cover is not deducted So is it correct plz clerify me i am confused or it is L/4=10’-2*(1’’)/4

@EngineerBoyOfficial 5 жыл бұрын

Concrete cover ignore krdia hai dear.. app ne ju bataya hai wo theek hai

@jobinkj6563 4 жыл бұрын

if the dia is 8 instead of 6 what will be 8/8" instead of 6/8" ? 8/8" wrog or currect

@EngineerBoyOfficial 3 жыл бұрын

if dia is 8 then its 8/8 inches or 1 inche

@michaelshongwe9995 Жыл бұрын

Thank you sir

@EngineerBoyOfficial Жыл бұрын

Welcome sir

@michaelshongwe9995 Жыл бұрын

@@EngineerBoyOfficial how can i contact you directly, I need your assistance ?

@EngineerBoyOfficial Жыл бұрын

Check video description

@mansipandya615 5 жыл бұрын

i did not understand the concept of (6/8)" diameter. please explain. can you release next video using metre as dimension?

@EngineerBoyOfficial 5 жыл бұрын

Its simple dear... 6/8 inches means 0.75". Or if you see inches is divided into 8 parts known by soters.. so 6/8" means 6 soters diameter... remember diameter represents the size of bar...

@EngineerBoyOfficial 5 жыл бұрын

Yes. Sure i will try to do videos in metric systems

@ZiaKhan-ny2bj 2 жыл бұрын

Assalam 0 alaikum sir g sanga yai

@chayanbhattacharya7963 5 жыл бұрын

is there it ll be also 9D for stirrup? is it not 2d?

@EngineerBoyOfficial 5 жыл бұрын

this depends upon design... i have uploaded a separate video on this

@chayanbhattacharya7963 5 жыл бұрын

@@EngineerBoyOfficial ohke

@ZiaKhan-ny2bj 2 жыл бұрын

Sir g da column ya da beem ringan ba sanga formula Sara raukhku

@EngineerBoyOfficial 2 жыл бұрын

Video me uploaded kre da quantity survey playlist ke. Hagha check

@devonpeters549 3 жыл бұрын

Please tell me why I don't get 43.83 ft when I plug the same numbers... I am doing an assignment for structural mechanics and I am referencing from this video.

@EngineerBoyOfficial 3 жыл бұрын

Can be two reasons. 1) you not following BDMAS, 2) my answer maybe wrong.

@devonpeters549 3 жыл бұрын

@@EngineerBoyOfficial I've used BODMAS but thank you.

@drsadaf8114 Жыл бұрын

Sir pluged some value in inches and some in feet . Did not mentioned however conversion to feet in next step but he did actually directly. And answer was obtained by all values in feet that is 43.83.

@mukeshsah1932 4 жыл бұрын

plz provide link of this video

@EngineerBoyOfficial 4 жыл бұрын

Its free you can watch here on youtube

@SanketPatil-pj9xo 5 жыл бұрын

sir, you don't convert values in same unit.....

@EngineerBoyOfficial 5 жыл бұрын

i do when its needed. where there is no need i do not,

@bbcakesedmund774 4 жыл бұрын

What does the 52.9 in the formula represent?

@EngineerBoyOfficial 4 жыл бұрын

Derivation to this formula is been uploaded , watch to discover your answer

@bbcakesedmund774 4 жыл бұрын

@@EngineerBoyOfficial that doesnt help me. Where do i get that version? Can i het a link please? Because atm i dont see it

@sunildutta5333 4 жыл бұрын

There r two hooks so length of stirrups will increase!

@EngineerBoyOfficial 4 жыл бұрын

9D was taken for both hooks

@sunildutta5333 4 жыл бұрын

@@EngineerBoyOfficial it should be 2*9D,plz clarify

@Lobiminyo 4 жыл бұрын

Students usually use mm

@EngineerBoyOfficial 4 жыл бұрын

okay

@aghmazsardar3900 3 жыл бұрын

Why u use dsq/52.2 Its for ft Is dsq/533 .... Kindly clear this

@EngineerBoyOfficial 3 жыл бұрын

proof and derivation of this formula is uploaded in the playlist of "quantity survey" please watch that

@beautifulvillage.6945 4 жыл бұрын

Here two hooks. But why we calculate one times only. Why. 9(6/8)'' Why not 2*9(6/8)''.???

@EngineerBoyOfficial 4 жыл бұрын

I have taken 9D for

@sankarkalita5467 2 жыл бұрын

What is 6 by 8 inches

@EngineerBoyOfficial 2 жыл бұрын

6 by 8 inches mean 6 divided by 8 inches (6/8)^2

@annaayaz8664 5 жыл бұрын

W = (D^2/52.9) * L , where D is dia of bar which should be 6/8, then why did you write 6 ?

@EngineerBoyOfficial 5 жыл бұрын

Here D must be in soters. Here 6 is ol

@user-mo6fs6wj1y 10 ай бұрын

Main bar is answer wrong calculated

@theslickking-majura5799 3 жыл бұрын

I STILL DONT UNDERSTAND WHY ITS 6/8 INCHES KINDLY EXPLAIN THIS OR TELL ME WHERE I NEED TO RESEARCH ON THIS. YOUR QUICKEST RESPONSE WILL BE APPRECIATED

@EngineerBoyOfficial 3 жыл бұрын

Its easy, if i say its #3 bar that mean 3/8 inches, If i say its #11 bar that means 11/8 inches. 6/8 inches is the diameter of rebar for #6 bar.... Thats number (3,11 and 6) represent the 3rd, 11th and 6th part of inche

@usman_599 4 жыл бұрын

Sir kindly first tell how to calculate no.of bars

@EngineerBoyOfficial 4 жыл бұрын

Already uploaded

@Engrwaleed555 5 жыл бұрын

Interesting lecture. But the quantities are not super accurate.

@EngineerBoyOfficial 5 жыл бұрын

hmm. thank you for comment. may i know how to make it super accurate?

@Engrwaleed555 5 жыл бұрын

@@EngineerBoyOfficial Dear we have to deduct the bents. 1D for 45 degree bend, 2D for 90 degree bend and so on. Some times it may cause problem during cutting of steel on site. If we dont deduct bents then some stirrups might be tight some might be lose. I know some surveryor s don't consider bends during their calculation which is ok but considering bends may prevent site engineer from a headache on site. Nur kho sir jee taso kha poye ge. Za kho staso shagird yam 😁

@Engrwaleed555 5 жыл бұрын

@@EngineerBoyOfficial Also the perimeter of the stirupps should be its centerline not its outerside. You calculate it upto outer face. Perameter should be 2(a+b) where a= width of beam- 2*Clear cover - 2*bar dia of stirupps bar. (To reach to the centre line). Same goes for "b". Then ofcourse we add hook length to it (12D is now a day prefer by structural designers instead of 9D) and then we have to deduct the bends. So we have 3 90 degree bends in stirrups, therefore we have to deduct 3(2D) from total cutting length of stirrup bar. We deduct bends because when steel is bend down it elongates at that bending point.