$2-$ For a $4$ m x $5$ m section, calculate the design load of the reinforced concrete structure shown below.

$($Reinforced Concrete:$25$ kN$/($m$^(3)),$ Leveling Concrete: $22$ kN$/($m$^(3)),$ Oak Flooring: $6\mathrm{.}9$ kN$/($m$^(3)),$ User Load: $2$ kN$/($m$^(2)))$

$($structure safety factor Fd$=1\mathrm{.}4$G $+1\mathrm{.}6$Q$)$