A $2-$story structure, which has $12m8m$ dimensions in plan, will be constructed.

The typical plan view and the front view of this building is as given in Figures a and $b,$ respectively.

The building consists of frames and slabs as given in the same figures.

The lengths of each frame member and the dimensions of each slab is as given in the figures below.

As seen in Fig a$,$ each of the two floors has $7$ slabs and $1$ slab opening $($discontinuity in slab between the

points $B,C,H,$ and I $).$

All frame systems in the building consist of reinforced concrete beams and columns. The concrete class is

C$30.$

The dimensions of all columns are $50cm50cm$ while the dimensions of all beams are $30cm50cm.$

The magnitude of the loads on the slabs is calculated as $q=4k\frac{N}{m^2}.$

These loads on the slabs are transmitted to the floor beams on each sides of the slabs $($such as the

continuous beam ABCD in Fig b$.)$

STEP $1$ Calculate the loads transmitted from the related slabs to the continuous beam system

$\frac{?}{{?}_{\frac{?}{?}}BCD}.$ And draw the free body diagram of the ABCD Beam the beam and

the column connection at point $A$ is designed as a fixed support while

the connections at points $B,C,$ and $D$ are designed as pin suppor

NOTE: In addition to the slab loads. there is also a box with a weight of $W.$ which is

hanging on the span $BC$ of the beam system ABCD.

The weight of this box is equal to $10kN,$ and the location of this box is as given in Fig $b.$