Seismic Fragility Estimates of LRB Base Isolated Frames Using Performance-Based Design

Table 1

Design of base isolation ( = effective damping ratio, = yield force, = energy dissipated, = cross-sectional area of the lead core, and = cross-sectional area of the bearing).

(a) 3-story structure

ξ

(sec)

(kN/m)

(m)

(cm^2)

(cm^2)

(b) 9-story structure

ξ

(sec)

(kN/m)

(m)

(cm^2)

(cm^2)