$(($Ineed question $3$ only $))))$

Given Data for Ouestions $2,3$ and $4$:

Concrete density $({}_e)=25k\frac{N}{m^3}$

Wall density $({}_{})=10k\frac{N}{m^3}$

Story height $=4\mathrm{.}4m$

Live Load $=2\mathrm{.}5k\frac{N}{m^2}$

Floor cover $=2\mathrm{.}1k\frac{N}{m^2}$

Slab thickness $=0\mathrm{.}12m$

Wall thickness $=0\mathrm{.}25m$

Beam width $($b$)=0\mathrm{.}25m$

Beam depth $($d$)=0\mathrm{.}425m$

Beam height $($h$)=0\mathrm{.}500m$

Beam concrete cover $(d^{\text{'}})=0\mathrm{.}055m$

Rectangular column width $=0\mathrm{.}25m$

Rectangular column length $=0\mathrm{.}50m$

$f_c=21$MPa,$f_y=420$MPa,

Any missing data can be assumed.

Question No$.2$: $(7$ Marks$)$

Figure $3$ shows the layout of a ten story structure. The floor slab system consists of cast$-$in$-$place slabs supported on beams, It is required to:

$($i$)$ Show the tributary areas of all beams on the structural plan.

$($ii$)$ Calculate the ultimate uniform loads carried by the beam on axis $(2)$ and draw the the beam with its loads.

$($iii$)$ Calculate the ultimate load carried by the column on axes $($R$-2)$ at fhe omind level.

Ouestion No$.3$: $(15$ Marks$)$

Considering that the loads and bending moments of the beam on axis $(2)$ are as shown in Figure $4,$ it is required to:

$($i$)$ Design the critical sections in flexure at the midspan and at support $($b$).($Use bar size # $19$ for the flexural reinforcement$).$

$($ii$)$ Design the beam critical section in shear at support $($a$)$ using #$8$ stirrups with four branches.

$($iii$)$ Draw the designed cross sections showing all reinforcement details.

Question No$,4$: $(8$ Marks$)$

Considering that the ultimate axial load of the column on axis $2-B$ at the ground level is $2800kN,$ it is required to:

$($i$)$ Design the column as a circular short tied column and draw the reinforcement details. $($Intially assume ${}_g=1\mathrm{.}8\%$ and use bar size #$19$ for the longitudinal reinforcement$).$

$($ii$)$ Redesign the column as a circular short tied column and draw the reinforcement details if it is subjected to additional ultimate bending moment $(M_u)=250kN.m($Use bar size #$22$ for the longitudinal reinforcement$).$