Seismic Loads according to the 2005 National Building Code of Canada
Seismic Loads according to the 2005 National Building Code of Canada
(OP)
The minimum Base shear is calculated as:
V=S(Ta). Mv. Ie. W/ (Rd.Ro),
S(Ta) and Mv are a function of the Fundamental Lateral Period, which intern is a function of the height of the building, or the number of stories.
My question is: How is the base shear different in different directions?
Thanks
V=S(Ta). Mv. Ie. W/ (Rd.Ro),
S(Ta) and Mv are a function of the Fundamental Lateral Period, which intern is a function of the height of the building, or the number of stories.
My question is: How is the base shear different in different directions?
Thanks






RE: Seismic Loads according to the 2005 National Building Code of Canada
RE: Seismic Loads according to the 2005 National Building Code of Canada
I think I might not be understanding your question though...
RE: Seismic Loads according to the 2005 National Building Code of Canada
Thanks for your answer. I am doing a review for a concrete building, in which shear walls are used as SFRS. The drawings show different (Ta) for the two directions and hence two different base shear values. I think the base shear in the current code is not a function of the direction if same type of SFRS is used.
RE: Seismic Loads according to the 2005 National Building Code of Canada
If you've got an 80 foot long shear wall in one direction and a 20 ft long shear wall in the other direction, then it makes sense that the period would be different for the two directions.... regardless of what the "simplified" formulas say.