Question: A reinforced concrete column, 4 . 2 m high has a cross sectional area of 3 0 0 m m 4 0 0 m m

A reinforced concrete column, 4.2 m high has a cross sectional area of 300mm400mm. it is reinforced by 4-steel rods each 20 mm in diarneter and carries a load of 1000 KN , young's modulus of elasticity for steel is 200,000MPa and 15,000MPa for concrete. Compute:
a. The stress of steel bars (5 pts)(}
b. The stress of Concrete (5 pts)
c. The shortening of the column (5 pts)
A reinforced concrete column, 4 . 2 m high has a

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