How To Calculate Bend Deduction Length of Steel Bars As Per IS Code 2502 :1963
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- Опубліковано 11 лют 2019
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Bend Deduction in Reinforcement Steel
How to calculate bend deduction in bars as per is code,
Bend Deduction Formula
Bend Deduction in Bar Bending Schedule
Bend Deduction in BBS
As requested by all of my viewers, I have made the bend deduction of steel bars as per IS code and get the clear concept of bar deduction method in BBS.
If you need actual bend deduction for 45, 90, 135 Degree bends for all dia bars, Please comment your Mail ID Below, Also like & share this info.
vishalchvn87@gmailcom Respected Sir, Please send the Details.
rikeshsingh16@gmail.com
Yes we want
Sableketan87@gmail.com
amanksonu@gmail.com
Great video sir, the climax was too good you have proved that there is no connection of elengonation for bend deduction, superb sir
Nicely elaborated. I was looking for it from long time. Thank you very much.
very very nice video,i just cant express in words,thank you so much sir
Super video. Bahut hi bada confusion dur ho gaya hai.
Great sir, this is priceless information
Great video sir, Full proof and great concept thx sir
Bhaisaab subhanallah
U have cleared each nd every aspect of bend deduction.
Wish u a good luck for ur future.. 😊
Sir this is big confusion about bend deduction you have cleared in lucid manner through proper IS code. Keep it up Thank you 🙏🙏🙏🙏
ua-cam.com/video/ywjCZY3HTDY/v-deo.html , @3:25 but sir did the same in his bend deduction ,for 90degree = 2d. :p
Great video sir, Is video main right ans. Mila, thank you sir for your valuable information and time
Outstanding sir, you proved sir
thanks Sir u only cleared my all doubts about is
Wonderful video bro, just amazing
I appreciate your work
Sir you are great
This video superseded all video of bend deduction on UA-cam. Thank you much sir for making this video, you are awsme sir
Pls upload video daily wise sir....it will helpful for all of us
Sir samdhhane ka tarika bahot achha lagta hai
av tk galat padh rha tha youtube pe ... thank you sir
Kya baat h, bahut Sahi ladke
Great videosir, thank you
You are a genius.
Very useful thanks sir
Thanks a lot sir
🙏
Thank you so much sir 🙏
Ultimate video.
Great video sir
Thank you sir ji......
I need this information proper is code, thank you so much sir,
Great job bro
Thanks kushwaha ji
Thankyou sir
Excellent
Sir thank u
Thanks sir
very neately explained sir. please explain meaning of hook allowance H and bend allowance B. how are they measured.?
great
The elongated arc 0.047 compare to center line arc 0.0393 is almost 20% elongated. Will this 20% stretch in the steel affect the strength of the steel. Is there any specific limitation in IS code that sets any maximum limits to stretching of steel?
if the bent is made with a larger radius, then the elongation can be reduced. is it a good idea to use a larger bent radius, for example above 3d instead of 2d?
4.10 : For CTD bar confirming IS 1786, k=4, which is generally used at site for RCC nowadays. If you take k=4 you will get bend deduction for 90°= 2# which is practiced at site. So for MS and HYSD bar value is different.
Upto a diameter of 16 mm, only deduction of 1D is used at site...
2D is a misconception. You can verify at site that if deduction of 2D is used, the hook length of the stirrups would be shorter than required.
@@vikastripathi2696 you don't get it , he is talking about the value of k for Mild Steel and CTD bars are different even in the same dia category , hence bend deduction value of both bars will also differ.
@@ashutosharya1161 I just mentioned the misconception that is quite common at site.
Just wanted to point out that.
Great
Narayan Bless 🙏 You
You are a fucking Genius. I never thought of it. Thanks a lot for making concept clear
Ek question hain. Aap ne 90 degree k liye calculation kiye hain. Agar 90 chorke koi aur degree k bend hain to kya sirf degree k valu change karke baki calculation eki rahega? Matlab har time kya 2R se arc length deducted hogi?
Think sir
sir agar mai stirrup cutting length find out kar raha hu or bend deuction 1d 2d 3d respective angle ke liye deduct kar raha hu to length calculation ke liye mai konsi length consider kar inside wali center wali ya outside wali
Sir as per is 2502 the value of k is 2 for mild steel, 3 for medium tensile and 4 for cold twisted bar 1786 as per above format if we substitute the value of k as 4 and derive values for bbs bend will it be correct.
Please provide Total cutting length formula for stirrup by this method
🙂👍
Sir after taking stirrup cutting length as 2(A+B)+24d , we need to deduct bends or not?
Please tell me the clause number in is code where its mentioned about bend angle and bend length. i really want to know.
Sir, formula for cutting length of stirrup is 2(a+b) +24d?... It is as per center line?... Do we need to apply bend deduction in it?
2((a+d)+(b+d))+2x10d= given , 10d for hook. Bend deduction required when we calculate from outer dimension of ring. Generally we deduct cover and work with outer dimension of ring, so we deduct for bend.
Sir , how to calculate haunch bar cutting length at any angle.Many of the VUP Underpass have haunch angle less than 45 degree. SIR PLEASE REPLY
Excellent. One doubt pz. At 8.08 , you mention that internal redius is 25 mm. Couldn't get it. Can you please elaborate. We consider kd as R. Which is the reference for taking 25 mm as internal diameter? Is it required?
I am also confused in it
Do American standard has bend deduction please clarify sir. I am unable to find ACI 318 and ACI 615
Sir, please provide the clause where it is written 1.1 d as deduction for 90° bend..
Dear sir,
Bill preparation for overall building. What are the is codes require?
Please mention the all code for the specific item. (Excavation, pcc, rcc, brick work plaster& etc..)
Only single code SP 27 Book, which has all IS 1200 Code Parts
Excellent video sir.
If there is no relationship between elongation and bend deduction , why these deductions are done?
Basically there is a connection as -> ( elongation for outer bend - contraction for inner bend = deduction length ) .
If deduction length is 0 then it may be said that there is no relationship between them , but there is some length left to deduct so there is connection !
yes you are right in this elongation length is greater than contraction length so there is some length to deduct due to required elongated length so ultimately there is connection of elongation in bend deduction.
Sir apne R ki value 2 li joh ki mild steel ke liye hai..agar hum deformed bar ki case me 4 leh toh bend deduction ki value increase ho jati hai
Sir, we have to take k value as 4 (up to 25mm dia bar) for steel confirming to IS 1786
So please confirm with that. Let me know if I am wrong.
If elongation is not the cause of difference between deduction after bend then what is the cause ??
Sir,
In Bend deduction you have divided 90/360 "its for all degree - or- only for 90 degree only -
Yes
@@FactualCivilEngineering
Can i divide it 185/360... For different length
Dear sir, I am still confused about on page no 10 of IS 2502:1963 table V , A , Approx. Total Length of Bar (L) Measured Along Centre Line is A + E -1/2 R -d , sir I didn't understand this.regards.
A+E-1/2R-d
here as per 3.2.1(Note-1) from this code value of R is k.d and value of k is 2 upto 25 mm dia bar.
now, R=2d then A + E -1/2 R -d =A + E -1/2 (2d) -d
finally for 1 bend deduction like table V / shape A length =A + E -2d
please take the value of k as per cold twisted bar which is generaly used.
DEAR SIR ,
I have a dought about
Steel cutting length , please Make a video on cutting length and compare IS CODE 2502-1963 vs normal bend deduction method (45° =1D ,90° =2D) , which method is right , please explain in easy language . Please sir also prove 45°= 1D as per IS CODE
🙏🙏🙏🙏🙏
As per is code we can calculate stirrup length as (A+B) +24d
But when we use the concept of bend deduction as derived by you i.e 1.1d then two lengths do not match
What will be the value of L for 135 degree or hook
You considrred Case of Mild steel which is hardly used these days . U should have explained clause 3.2.1 in more details considering cold twisted bars.
sir esh video mein value of k =2 for mild steel for deformed bar steel value of k=4 ?? below 25 mm dia of bar
sir, can i have soft excel working sheet for the bend deduction
i think center arch length to be consider for deduction
please confirm
heavvy
8mm deduction 135degry bend
pl explain 24d or 20d in this respect
Dear Sir please make the video quality related
Root bending radius 20 kase ho sakta hai jab 10 mm bar hai
Still not cleared why it is not followed @ site. Also there is NO elongation in a bend as centre line is same after i.e (elongation = compression). This deduction is due to the fact that while bending bar doesn't follow exact rectangular cornes & it takes curves/arcs which has less length than corners thus, this length is deducted from total length to exactly match the curved length practically seen.
Sir 135⁰ &180⁰ ka kya calculation hoga please sir
7:24 Thoda Confusion Hai sir Please mera Doubt Clear Kare..
R Value 20mm (0.020m) Kaise Aaya Sir???....
Bhai 1m me 1000mm hote he
Its "bend" and "elongation".
Why it is 1.1d ?? Is it in cm?
I think 0.011 x 100 = 1.1cm
For all. UA-cam Channel. Who are giving theory of elongated length deduction
Factual engineering to them:- Kyu Hila Dala Na😜🤣
Kab aayega sir
How R2 is equal to L??
How it's 1.1d
It's come 0.011
Plz explain
1.1*10(d)=11mm
0.011 is in m basically =11 mm
Aur 0.009 kaise 1.1 ho gya
Aapane 6 mm se lekar 25 mm tk 1.1 d kyo liya hai jo aapane calculation ki h usme different different coefficient hai
But you also did the same bend deduction i.e for 90 degree = 2d in your bbs video ua-cam.com/video/ywjCZY3HTDY/v-deo.html @3:25. please clarify.
IN SITE,2D DEDUCTION DONE FOR EASE.
Sir, BBS ki excel file share karie.
But sr 2d hi Kyo minus ho rha Iska concept
135 degry ka deductio methode
135 degry bend deduction formula
So complicated
Aisa lag raha hai Jyada follower ho gaye hain to message nahin kar pa rahe hain
Aisa nahi h, main mostly sabse baat karta hu....
Sir Apne sabhi coefficient 1.1 liya hai Hai Aisa Kyon. yah aapane kis Aadhar per Liya Hai To ki aapane Actual deduction video mein bataya Hua Hai.
Wo Calculation se aaya h, diawise
Jaise Sir 8mm ke liye jo coefficient Aaya Hai vah 0.009 per aapane likha hai 1.1. yah 1.1 Kaise aaya hai sirf yah Bata dijiye Mera doubt clear ho jaega. Kyunki 1.1 Jo Aaya Hai vahan 10 mm ke liye aaya hai aur Vahi aapane Sabhi Diameter per apply kiya hai.
Sir you are not send actual bend deduction my mail id. I have already given my mail id in comment section. Please send 🙏🙏
I will send, when i explain both deduction 45 degree and 135 degree also on a video
Bhai plz mujhe bhi send ke do
Sir is ki sheet to send kar diya karein
Ye kese kya kya kiya kuch smj nhi aaya or 1.1D bhi kha se aa gye
Elongate hota h.
Ye to calculation h .
Koi v steel ka length inner radius jitna hi rehta h
Dear sir 45 degree aur 135 degree ke liye kaise karege... aakashhgoyal@gmail.com
Practical work me ye cheeze kbhi kaam nhi aati specially india jesi country me
PLS. dont put english title if you are not gin to explain it in english.