Please note: Use effective hole diameter $20$mm if needed

Please use this value for A$=5,$ B$=6,$ C$=4$

Computations only

Situational Problem No$.1$

A steel I$-$beam is suppose to be used as a beam,

however, it was found out that the cross section cannot

resist the demand. Hence, a steel C$-$section is added at

the top to increase the capacity against flexure as

shown.

I$-$beam Properties

Flange width $=3A_{{?}_{?}}0mm$

Flange thickness $=2B_{m}m$

Web height $=2C_{0}mm$

Web thickness $=3C_{m}m$

C$-$section Properties

Flange width $=5A_{m}m$

Flange thickness $=3B_{m}m$

Web height $=4C_{0}mm$

Web thickness $=2C_{m}m$

Determine the:

a$.)$ Centroidal Moment of Inertia on X$-$axis

b$.)$ Radius of Gyration on $x$

c$.)$ Radius of Gyration on Y