Using the coefficients obtained from the map, the spectrum curve given in Figure 11.4-1 with Equation 11.4-5 - 11.4-7 is automatically determined by the programmehorizontal elastic designspectrum curve is automatically determine according to ASCE 7-16.
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Due to the need for site-specific analysis for site class F, the design spectrum isn’t determined automatically. The reduced design spectrum needs to be imported as a .txt file.