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how can change 12mmdia@150c/c bar spacing to 16mmdia
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Answer / vinod kumar, sriharikota
Dia of known bar d1=12 mm
spacing of known bar s1=150mm
d2=16mm , s2= ?
d1^2 / s1 = d2^2 /s2
s2 = (d2^2 x s1)/ (d1^2)
spacing of 16 mm bar =266.666 mm
| Is This Answer Correct ? | 434 Yes | 63 No |
Answer / sunil1505
dia 12 - 150
if 16 mm - 16*150/12
but after taking that spacing we should calculate the area
of steel in concrete..we should match the area of steel in
12 mm = area of steel 16 mm in that structure.
| Is This Answer Correct ? | 72 Yes | 38 No |
Answer / lohit havalagi
very simple when we increase the diameter of the reinforcing bar it results in increased area, so INCREASE the spacing to get the required area of steel.
| Is This Answer Correct ? | 39 Yes | 20 No |
Answer / mustafa mohd layeak
Consider 1m strip of slab.
Using 12mm dia bar with a spacing of 150mm,we get
Area of steel=754sqmm/m length.
So if using 16mm dia bar we get a new spacing
s=[(1000*201)/754].therefore new spacing
s=266 mmc/c. therefore use 16mm dia bar@250mmc/c.
But check [M/V + L']>dev length at support.
| Is This Answer Correct ? | 26 Yes | 11 No |
Answer / vijay
We can change the 12mm dia @150mm c/c spacing to 16mm dia @
150mm c/c but area of steel provided will get increased.
| Is This Answer Correct ? | 22 Yes | 8 No |
Answer / er.pramod k saroj
before D1=12 and s1=150 so change dia = D2=16. and spacing =S2= ? solve = S1xD2/D1. 150x16=2400/12=200mm. ans= 200 mm
| Is This Answer Correct ? | 27 Yes | 13 No |
Answer / daniel lemma
Let assume for 1m (1000mm) span
d1=12mm
s1=150 approx No. =8pcs
d2=16mm
s1=? approx No. =?
We have to use this formula
d1^2 / s1 = d2^2 /s2 So s2=266.66 and
approx Spacing 250mm, and
New approx No of bar will be 4pcs
| Is This Answer Correct ? | 13 Yes | 2 No |
Answer / kunal chandra singh
We can calculate the weight of 12 mm rebar in 1 sq m area with 150 mm spacing after that we can calculate by compairing 16 mm dia with calculated weight per sq m area to calculate unknown spacing .
| Is This Answer Correct ? | 7 Yes | 2 No |
Answer / er. ritesh singh
Suppose d1-12 mm bar & d2-16mm bar than area of d2*150 /area of d2 bar
| Is This Answer Correct ? | 9 Yes | 6 No |
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