Low spectral response value Ss yielding small seismic forces in Hawaii
Low spectral response value Ss yielding small seismic forces in Hawaii
(OP)
Under the IBC 2003, seismic base shears are based on maximum considered earthquake ground motion for one-second and short spectral responses, S1 and Ss. Typically in Southern California, Ss is on the order of 1.4. In Hawaii the value is 0.178, resulting in a base shear of only 4% gravity. This seems ridiculously low. Can anyone confirm a similar design value for a Hawaii job?
Many thanks.
Many thanks.





RE: Low spectral response value Ss yielding small seismic forces in Hawaii
RE: Low spectral response value Ss yielding small seismic forces in Hawaii