$(7)$ Problem $3,$ Chapter $17$

Compute the ultimate moment $M_4$ for the section detailed in Figure $17\mathrm{.}8(2).$ Given $f_c^{\text{'}}=40$MPa:$A_{p1}=910m{m}^2$ bonded: $f_{vm}=1710$MPa:$f_p=1850$MPa;${}_{\text{p}\text{a}\text{t}}={}_{}=1100$ MPa and

Figure $17\mathrm{.}8(2)$ Cross$-$sectional details for Problem $3.$ Chapter $17$

Note. all dimensons are in mm$.$