Situation $2$

A reinforced rectangular bear has a width of

$300mm$ having a simple span of $6m.$ It carries

the following moments:

Dead load moment $($including self$-$weight$)=100$

$kN-m$

Load Load Moment $=140kN-m$

Moment Due to effect of earthquake $=189kN-m$

$F{e}^{\text{'}}=20\mathrm{.}7$MPa

$Fy=414$MPa

Ioad Factors:

$U=1\mathrm{.}20L+1\mathrm{.}6LL$

$U=1\mathrm{.}20L+1\mathrm{.}0Q+1\mathrm{.}0LL$

Compute the factored design moment $($kN$-$m$).$

a$.344$

b$.449$

c$.382$

d$.498$

Determine the effective diepth of the beam $($min$)$

using maximum steel ratio at tension control

limit$.$

a$.475$

b$.395$

c$.595$

d$.625$

Deternine the no$.$ of bars $28mm$ bars required

for tension reinforcoment.

a$.3$

c$.5$