walls in both directions i$.$e$.($E$-$W$)$ and $($N$-$S$).$ There is no drop in the flab slab and it is supported by columns with heads, as shown in Fig. $2-3$b$.$ The allowance for finishes is $g_{k}k\frac{N}{m^2}$ and the imposed loading on floor is $q_{k}k\frac{N}{m^2}.$ The concrete is grade $40$ and the reinforcement is grade $500.$ The concrete cover is $25mm.$ Preferable bar size to be $20mm.$ Design the internal flab slab $($Among grid lines $2,3,$ B$,$ C$)$ as below:

$($a$)$ Determine the design load

$($b$)$ Determine the width for column strip and middle strip.

$($c$)$ Evaluate the moments at interior span and interior support for middle strip.

$($d$)$ Design the reinforcement for the middle strip.

$($e$)$ Comment the shear capacity of flab slab with support of calculation.

$(2$ marks$)$

$(2$ marks$)$

$(4$ marks$)$

$(4$ marks$)$

$(3$ marks$)$

plan of

tlat slab

Fig. $2-3$b Internal column head and slab details

Page $9$ of $17$

Note: Please refer to the following table to determine the value of $L,H,g_k$ and $q_k,$ which are dependent on the last digit of your student ID $($SID$).$

$\backslash$table$[[\backslash$table$[[$Last digit of$],[$SID$]],L[mm],H[mm],g_k[k\frac{N}{m^2}],q_k[k\frac{N}{m^2}]$