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Correlation Between Seismic Zone UBC and IBC

Correlation Between Seismic Zone UBC and IBC

(OP)
i am in process of designing structure with seismic zone assisgned according to IBC 2006 ,the problem arise that the structure is classified according to UBC as seismic Zone 2B , does anyone know a method where i can correlate between between UBC97 to IBC 2006 so that i can get the parameters Ss and S1?

i am thinking of doing it by comparing the two response spectrum where in this case
Sds=2.5Ca
Sd1=Cv

any thoughts ...?

RE: Correlation Between Seismic Zone UBC and IBC

The best you can do, I think, is to compare the area maps from the UBC with the resulting Ss and S1 values from the IBC. There have been some significant differences between the codes so other than perhaps comparing the base shear resulting from both "methods" I'm not sure how you could get an overall comparison.

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