Use M$25(A_{\text{b}\text{a}\text{r}}=500m{m}^2)$ for beam and columns reinforcement and M$10$ for shear

reinforcement $(A_{\frac{?}{\text{b}\text{a}\text{r}}}=100m{m}^2).$

Figure $1$ shows a plan view of a typical reinforced concrete floor in a $10-$storey residential building. The floor system consists of a floor slab supported by $300mm$ wide beams. The floor supports its own weight and a superimposed dead load of $0\mathrm{.}30$kPa, in addition to a live load of

$1\mathrm{.}8$kPa. The floor also supports walls by the exterior beams $($B$2$ and B$2\text{'})$ with a weight of $10$

$k\frac{N}{m}.$

It is required to:

Determine the minimum practical thickness of slabs to satisfy the deflection limits$.$ Use one thickness for all slabs $($S$1,$ S$1\text{'},$ S$2$ and S$3).$

Evaluate the dead, live and ultimate factored loads applying to the slabs $($in $k\frac{N}{m}2)$

Determine the factored bending moment and shear force developed in slabs S$1-$S$2-$S$1\text{'}$ and slab S$3$

$($Note S$3$ can be modeled as a $2m$ cantilever fixed to the adjacent beam B$3).$

Calculate the reinforcement required for slabs $S1-S2-S1\text{'}$ to resist the maximum positive and negative moment and sketch the reinforcement in each case.

Calculate the reinforcement for slab S$3$ to resist the bending moment.

Assume the height for beams B$1$ and B$2$ to prevent excessive deflections, then evaluate the ultimate loads going to beam B$1$ and beam B$2.$

Note beam B$1$ carries its own weight, slab weight super imposed dead and live load, while B$2$ carries same types of load in addition to wall weight.

Determine the factored axial load transferred to columns $C1$ and $C2$ assume the columns supports $10$ similar floors to that shown in Figure $1.$

Design the columns $C1$ ad $C2$ to resist the factored axial forces and sketch the reinforcement $.$

Note $C1$ is a circular column and $C2$ is a rectangular column with a width of $300mm.$