Question # $4$

Consider designing a two$-$bay steel frame structure located in Vancouver, B$.$C$.$ with dimensions as shown in Fig. $4.$ With class D$-$soil, use the NBCC $(2015)$ to obtain the distribution of the seismic forces acting on:

a$)$ Frames $(1),(2)$ and $(3)$ spanning in the E$-$W direction.

b$)$ Frames $($A$),($B$)$ and $($C$)$ spanning in the N$-$S direction.

Given:

Floor weight $=7k\frac{N}{m^2}$

Beams: Effective $I_b=945{10}^{6}m{m}^4$;$A_b=10,800m{m}^2$; Beam weight $=0\mathrm{.}83k\frac{N}{m}$ Columns: $I_c=330{10}^{6}m{m}^4$;$A_c=22440m{m}^2$

Young's Modulus $E_s=200,000$MPa