For the building frame shown below, answer the following questions:

What is the stability and determinacy of this frame?

What is the qualitative IL for the bending moment at $1-1?$

Consider a uniformly distributed live load on the floor, what is the loading pattern that can

cause the maximum negative moment $($negative moment with the maximum absolute value$)$

at $1-1?$

Hint: assume all beam$-$column connections can only rotate $($i$.$e$.,$ no translational

displacements$).$ See Example $17\mathrm{.}5$ for more details.