A short reinforced concrete column is subjected to a 600 kips axial compressive load. The moduli of elasticity of plain concrete and steel are 5 * 106 psi and 30 * 106 psi, respectively, and the cross-sectional area of steel is 1.8% of that of the reinforced concrete. Considering the column as a structural member made of a composite material and subjected to load parallel to the steel rebars, calculate the following:a. the modulus of elasticity of the reinforced concreteb. the load carried by each of the steel and plain concretec. the minimum required cross-sectional area of the column, given that the allowable compressive stress of plain concrete is 5000 psi and that the allowable compressive stress of plain concrete will be reached before that of steel
A short reinforced concrete column is subjected to a 600 kips axial compressive load. The moduli of elasticity of plain concrete and steel are 5 * 106 psi and 30 * 106 psi, respectively, and the cross-sectional area of steel is 1.8% of that of the reinforced concrete. Considering the column as a structural member made of a composite material and subjected to load parallel to the steel rebars, calculate the following:
a. the modulus of elasticity of the reinforced concrete
b. the load carried by each of the steel and plain concrete
c. the minimum required cross-sectional area of the column, given that the allowable compressive stress of plain concrete is 5000 psi and that the allowable compressive stress of plain concrete will be reached before that of steel
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