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A square R.C.C. column of 300mm X 300 mm in section with 8 steel bars of 20 mm diameter carries a load of 360 kN. Find the stresses induced in steel and concrete. Take modular ratio = 15.
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Data: A=300×300 mm2 , d = 20 mmϕ

No. of steel bar = 8, P = 360kN, m =15

Find: σc,σs

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As=n×π4d2=8×π4202=2513.27mm2Ac=AgAsAc=300×3002513.27Ac=87486.72mm2σsσc=mσs=m×σcσs=15σc

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