Table 1: Mean value and coefficient of variation of each input random variable.

Random variableMean valueCoefficient of variation (%)

Mass per story360 t5
Stiffness per story650 MN/m5
Damping per story6.2 MNs/m5
Spring constant for each TMDDesign variable5
Damping constant for each TMDDesign variable5
PGA0.475 g10
ωg18 rad/s10
ξg0.610