QUESTION $1$

COLUMN

$[18$MARKS$]$

Consider the cross$-$section of an RC column with dimensions $600300,$ as shown below:

Given that the concrete grade is $\frac{30}{19}$ with a $40mm$ cover provided for all reinforcement and considering an applied axial force of $1440kN.$

For the major axis of the column

The column is unbraced with an effective length of $7m,$ it is subjected to equal ultimate end moments of $160kNm$ in double curvature.

For the minor axis

The column is braced and fully restrained with an effective length of $0m.$ It is not subjected to any bending, except for the required nominal eccentricity of the axial load.

Verify whether the provided reinforcement is adequate to withstand the given load effects. $($Answer should be supported with relevant calculations or analysis.$)$