HOMEWORK $1$:

Given: A rectangular reinforced concrete beam in the following figure is built of C $25(f_{ck}=25$MPa $)$

Required: Compute the location of the centroid and the moment of inertia for both the uncracked

section and the cracked section.

HOMEWORK $2$:

A rectangular concrete beam is reinforced in tension only $($singly reinforced beam$).$ Th width of the

beam is $b=300mm,$ and the effective depth is