Simple Seismic R-Value Question
For a single storey house with an RC column and steel truss, since the Trusses is pinned at supports, what R-Value is appropriate to use when computing for the seismic loads using UBC'97? if we use R=2.2 (cantilever column)the base shear value will be about 50% of the total Weight. Which I think is very large, considering that a small structure is very stiff.
Also when designing say a small booth or a guard house (2m x 2m) do you still needed to consider seismic design? In my opinion i don't think it is need because it is very small, but code requires us to design it with seismic loads, is it ok to neglect this?