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Calculate ultimate L.C.C of short axially loaded R.C. column of size 400×400mm if it is reinforced with 8 bars of 16mm.θ as longitudinal reinforcement. Use M20/Fe415.
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Ag=400×400=160000mm2

Asc=816mm=8×π/4×162=1609mm2Ac=AgAsc=1600001609=158391mm2fck=20N/mm2fy=415N/mm2Pu=0.4fckAc+0.67fyAsc=0.4×20×158391+0.67×415×1609Pu=1714.51kN

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