Parameter Optimization of a Vertical Spring-Viscous Damper-Coulomb Friction System

Figure 8

Structural peak relative displacement when K = 100 kN/m with different damping constant, PGA = 0.8 g (the horizontal ordinates DS1, DS2, DS3, and DS4 are defined by the structural peak relative displacement in Table 2). (a)  = 0.005, r = 0.0 m⁻¹,  m, C = 50 kN·s/m. (b)  = 0.005, r = 0.0 m⁻¹,  m, C = 50 kN·s/m. (c)  = 0.005, r = 0.0 m⁻¹,  m, C = 100 kN·s/m. (d)  = 0.005, r = 0.0 m⁻¹,  m, C = 100 kN·s/m.

(a)

(b)

(c)

(d)