Question No$.5$

$[15$ marks$]$

Mat Foundations: The Shear and Moment Diagram of a mat foundation with column loads is shown below. Design the Mat Footing, Finding Thickness and Reinforcement. Load Factor is $1\mathrm{.}7,$ Reduction Factor $($phi$)$ is $0\mathrm{.}9.$ Fc is $432\mathrm{.}2Ki\frac{p}{f}t2,Fy=8,638\mathrm{.}1Ki\frac{p}{f}t2$

$2023/04/<mn>2</mn>$