Converting USGS seismic parameters to Canadian Code parameters
Converting USGS seismic parameters to Canadian Code parameters
(OP)
I'm working on project in Haiti. I have been able to obtained the Ss and S1 which are equivalent to Sa(0.2) and Sa(1.0) respectively in the Canadian Building Code.
However, I need to obtain Sa(0.5) and S(2.0). Any idea on how to get these values from Ss and S1?
However, I need to obtain Sa(0.5) and S(2.0). Any idea on how to get these values from Ss and S1?






RE: Converting USGS seismic parameters to Canadian Code parameters
Also, those values aren't directly equivalent. Canadian and US tabulated values are calibrated to different site classifications (Canada tabulates/reports values for class C, US tabulates/reports values for class B). You have to compensate for that. Basically, if you have US values, you have to apply the factors necessary to get it to site class C. Then you have the Canadian equivalent values.
RE: Converting USGS seismic parameters to Canadian Code parameters
I have checked and you are right. This is a two story 700m2 building and I'm using the Equivalent Static Force Procedure. The procedure includes a variable called Mv.
Mv depends of Sa(0.2)/Sa(2.0) but I don't have Sa(2.0). This is why I'm looking for those values.
RE: Converting USGS seismic parameters to Canadian Code parameters
Realistically, though, you still don't need any of that for low period structures. Mv is equal to one for anything with a period less than or equal to one second.
RE: Converting USGS seismic parameters to Canadian Code parameters