Stochastic Optimization of a Nonlinear Base Isolation System with LRB and EIMD for Building Structures

Figure 12

Comparison of the control performances of the EIMD and VD for the seven-story LRB-isolated building subjected to a total of 100 artificial seismic excitations (PGA = 0.4 g). (a) Interstory drift at the first floor of the superstructure. (b) Absolute acceleration at the roof. (c) Base floor deformation.

(a)

(b)

(c)