$22\mathrm{.}3.$ A $600mm$ deep, $2\mathrm{.}4m$ wide, $21m$ long double $T$ beam carries a girder weight of $420$ plf$,$ a sustained dead load of $0\mathrm{.}5k\frac{N}{m^2},$ and superimposed live load of $0\mathrm{.}5k\frac{N}{m^2}.$ It is prestressed with twelve $12\mathrm{.}7mm-$diameter $1860$MPa low$-$relaxation strands with a midspan eccentricity of $310mm$ and an end eccentricity of $125mm.$ Section properties are $A_c=250,000m{m}^2,I_g=8\mathrm{.}2E9m{m}^4,y_b=430mm.,y_t=170mm,$ and $h_f=50mm.$ Concrete strength is $35$MPa,$f_{c1}^{\text{'}}=25$MPa, and losses $=20\%.$ Determine the class of the beam. $q,$ strength is $35$MPa,$f_{ci}^{\text{'}}=25$ ome work $v$ virp?

$22\mathrm{.}4.$ Determine if the strength of the double $T$ beam in Problem $22\mathrm{.}3$ is adequate.

flextural strehgth Please solve this civil engineering question in detail, dont just give explanation solve it also draw the sketch too and i'll give a like