Answer Posted / vishal s rao

BBS is Bar Bending schedule
For 300*300 size column
rings will be 300-(40*2)=220mm
220mm on 4sides i.e =880mm
for bending purpose on two end 75mm to be kept.
i.e 880+75+75=1030mm
For right angle 2*d to be added.
i.e 2*8*4=64mm
So totally = 1030+64=1094mm.

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