Hi, it is a good attempt but there are two mistakes in your analysis. 1.As per IS 2502 minimum bending radius should be kd i.e 4d for HYSD. So for 10mm bar you should use 80mm dia bending pin at center to get accurate dimensions. 2. We deduct 2d or 3d from total length of bar taken from top of L to bottom of bend and face of L to end of the bar.the bend of reinforcement is not perfect 90 but a curve so we need to deduct (k+1)d × 2 and add 0.5×3.14×(K+1)d.
The deduction of 2D has to do with the Measuring concept when applied to the BBS. Its Deducted on the BAsis that the measurements we note down in the BBS is the Nominal Cover measurement. so what u got is half. Double all your increase in length and then check ..its perfectly 2 D and 3D.....IF the Measurement was to do with Centre then no deductions' would have required.
You are completely telling about theory...... Actually he is telling right.... this should be apply for any measurement of respective steel dia .... No matter it is straight, curvy in shape... If you are bending 45°-1D, 90°-2d, 135°-3d, should be proved by theoretically......
Yes you are right thumb rule is not true but result what you tested is also differ when brand as well as type of steel changes I also tested on my site.
Ring me centre line length nehin badha hoga mere hisab se.aap ring ke outer edge se napi lie hai, inner edge se bhi napi kariye aur center line length ko bhi.
Maine outer line se measure kiya fir bhi wo 2D ya 3D ke hisab se nahi mila usse kam mila...Socho agr centre line se measure krta to abhi jitna difference aya h usse bhi zyada difference ata....Outer line se kiya half value mil rahi h 2D ki...Agr center se nikalta h to half bhi nahi milti
Suppose if you a make a square stirrup, you need to bend 4 x 90 degree bends and 2x 130 degree bend. In such case cut length will be, say 2x2D+3D as per your demo. E.g. Deduction length= (10mmx4)+(15mmx2) for using 10mm. Dia. rebar. Am I right?.
may e expert nahi par...it has to do with the Setback, mold point and K.......higher the Degree of Bend higher the Setback...higher the deduction....SB= MT+ BR.......k..tan(0.5@)
Sir aap Jo management Karahe ho o galat tarika hai Kyu ki 90 degree jab bend karate ho to 10mm dia ka size 90 degree par karanar 10mm+10mm size badate hai.
😁😁😁 ab samajh main aaya ki site par aour office main baithhkar kitna fark hai...by the way achha laga ye tarika ...i give you 100 marks
Hi, it is a good attempt but there are two mistakes in your analysis.
1.As per IS 2502 minimum bending radius should be kd i.e 4d for HYSD. So for 10mm bar you should use 80mm dia bending pin at center to get accurate dimensions.
2. We deduct 2d or 3d from total length of bar taken from top of L to bottom of bend and face of L to end of the bar.the bend of reinforcement is not perfect 90 but a curve so we need to deduct (k+1)d × 2 and add 0.5×3.14×(K+1)d.
Hello sir, I am having doubt in this concept. Can we please have a talk on call?
U are right
New formula for 90° L - 2D/2 😊
Tahank You ... .
The deduction of 2D has to do with the Measuring concept when applied to the BBS. Its Deducted on the BAsis that the measurements we note down in the BBS is the Nominal Cover measurement. so what u got is half. Double all your increase in length and then check ..its perfectly 2 D and 3D.....IF the Measurement was to do with Centre then no deductions' would have required.
You are completely telling about theory...... Actually he is telling right.... this should be apply for any measurement of respective steel dia .... No matter it is straight, curvy in shape... If you are bending 45°-1D, 90°-2d, 135°-3d, should be proved by theoretically......
same problem I've faced today... cutting length is different from actual
Yes you are right thumb rule is not true but result what you tested is also differ when brand as well as type of steel changes I also tested on my site.
Good
Site temperature and ductility of steel makes difference
Nice practical video but steel ka grade kya hai ?, Plz specify. Elongation is subject to grade of steel.
Steel kun sa hai mild or hysd, Tmt
Hysd
You are taking for straight rod , not for rectangular stirrups, for stirrups it will be bend twice to make a complete stirrups , hope u understood
Ring me centre line length nehin badha hoga mere hisab se.aap ring ke outer edge se napi lie hai, inner edge se bhi napi kariye aur center line length ko bhi.
Maine outer line se measure kiya fir bhi wo 2D ya 3D ke hisab se nahi mila usse kam mila...Socho agr centre line se measure krta to abhi jitna difference aya h usse bhi zyada difference ata....Outer line se kiya half value mil rahi h 2D ki...Agr center se nikalta h to half bhi nahi milti
@@ENGINEERINGTACTICS yeah or inner age measure karte to use bhi less ata
Suppose if you a make a square stirrup, you need to bend 4 x 90 degree bends and 2x 130 degree bend. In such case cut length will be, say 2x2D+3D as per your demo. E.g. Deduction length= (10mmx4)+(15mmx2) for using 10mm. Dia. rebar. Am I right?.
Great practical guide 👍👏
Thanks
Bhi jabrjasttt itnaa behatreen kamm kar rhae ho aap na thnx bhi upar wlaaa aap ko barkat de bhii
Thanx bro...For this lovely comment
Measurements should be taken in 90 degree. Not aligned with bar.
Very Good practical shown. Thank you
Bro you have taken outer length but actually if you take inner length and take the mean length then you will get no change in length.
Aaj ke bad bendlength is 45° is D/2, 90° 2D/2, 135° 3D/2
Nice analysis on measurement🙏🏾
Its practically information given❤️
To fr kis hisab se cutting hoga jo shi ayega
very rare topic, best attempt.
Bhai ye 90 degree is equal to 2d kyun ata hai kuch derivation hai kya
90 aur 45 deegri ka bend karane ka liye pin setting kaise kare bataiye
Etana difference hy toh phir kaise kiya jaay BBS, and ring ka cutting length find karne ka sahi tarika kya hy plz suggest me the right solution
Did you got any solution?
But u measured the outer surface.. whereas u need to measure the center line.. accuracy cannot be achieved by any means..
may e expert nahi par...it has to do with the Setback, mold point and K.......higher the Degree of Bend higher the Setback...higher the deduction....SB= MT+ BR.......k..tan(0.5@)
Circular ring me kitna bend deduction krte h??
Do kerne padege jitne degree bend karoge
Your measurements is only in handy elongation length. I think which is not match in practically placing length in actual structure.
Ring inner L. B. +2 hook... Acutal cutting length... Li hogi
Is code ke anusar 2(a+b)+24d yhe use hota serf is code nhi bolta 2d ya 3d use karne ke liye ye serf 135' hook wala stirrup ke lye 90'ke leye 20d bas
YE MACHINE KAHA MILEGI
PURCHASE KARNA HAI
KOI CONTACT DETAILS ?
Steel MS h ya HYSD??????
HYSD
Thank you sir 🙏🏼🙏🏼🙏🏼🙏🏼
Good information sir👍
Bhai to iske liye kya kiya jay
Nice explanation sir ji..
Thank you sir
I'm supplying plastic wilding rods
25 mm dia aur 135⁰ ke liye test kare
2D formula thik hai but apka mapi korne ka tarika sai nehi lagrahe
2d 3d method Wong hai ise use nahi karna chahiye sir
yahi fark hai pahdai aur experience me..
Sir aap Jo management Karahe ho o galat tarika hai Kyu ki 90 degree jab bend karate ho to 10mm dia ka size 90 degree par karanar 10mm+10mm size badate hai.
I need this type of bending machine
धन्यवाद.सर.
Informative
45° bend karke dekho na sir
Mota baar ko test nhi kiya please
Sasta engineer😎😎
That is only more than 16 dai
Bhai pahila 230 hi aa raha tha
Na elongate nahi gota
Beta theory phir se padho tab practical karna
Beta ye practical hi hai ,dhyan se dekho
Nice
U measure it wrong
Sahi tarika
Wrong megerment
tera steel khrab h
बकवास बहुत करते हो
Sar aapka contact number chahie
Site temperature and ductility of steel makes difference
Thanks bro ☺️
Thanks bro
Nice