Given a beam section $bD=450mm950mm,M^{*}=1500kNm,f_c^{\text{'}}=32$MPa,

$f_{sy}=500$MPa and the maximum aggregate size $=20mm.$ Design and detail the section.

Use N$28$ bars for the main reinforcement and R$10$ bars for stirrups. Exposure classifi$-$

cation A$2$ applies.

A beam section having $bD=400mm800mm$ is required to develop an effective

ultimate moment $(M_u)$ of $1800$ kNm $.$ Design the reinforcement using compression

steel if necessary.

Assume $f_c^{\text{'}}=32$MPa and $f_{sy}=500$MPa. Sketch the cross$-$section showing the

reinforcement details. Use N$36$ bars only with R$10$ ties. Exposure classification A$2$

applies.

Evaluate $M_u$ for the section shown in Figure $3\mathrm{.}9(2).$ Assume $f_c^{\text{'}}=20$MPa.

Figure $3\mathrm{.}9(2)$ Cross$-$sectional details of the example beam section

Note: all dimensions are in mm$.$