QUESTION marks$]$

One span of a continuous composite slab in a composite floor structure of an office building is given in Figure $2.$ The overall thickness of composite slab is $125$ mm $.$ The live load is $3$ kPa $.$ The dead load consists of the floor self$-$weight plus a super$-$imposed dead load of $1$ kPa $.$ Take $f_c^{\text{'}}=35$MPa,$E_c=28000$MPa and unit weight of reinforced concrete $=25k\frac{N}{m}{m}^3.$

Check if the ultimate bending capacity of the section is sufficient or not for the maximum design sagging moment. $[10$ marks$]$

What is the bending moment capacity for the section A$-$A with a distance AA of $600$ mm to the support $A?[5$ marks$]$

What is the bending moment capacity for the section B$-$B with a distance BB of $1880$ mm to the support $A?[5$ marks$]$