Comparison of Scaling Ground Motions Using Arithmetic with Logarithm Values for Spectral Matching Procedure

Figure 4

Arithmetic mean and geometric mean of interstory drift ratios for the (a) 3-, (b) 9-, and (c) 20-story structures at 50/50, 10/50, and 2/50 seismic hazard levels (“a” represents arithmetic mean and “g” represents logarithmic mean).

(a)

(b)

(c)