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

Figure 12

Structural residual displacement when K = 200 kN/m, C = 0 kN·s/m, and PGA = 0.8 g (the horizontal ordinate DS1, DS2, DS3, and DS4 are defined by the structural residual displacement in Table 2). (a)  = 0.005, r = 0.0 m⁻¹,  m. (b)  = 0.005, r = 0.0 m⁻¹,  m. (c)  m,  m. (d)  m,  m.

(a)

(b)

(c)

(d)