Risk-Based Multiobjective Optimal Seismic Design for RC Piers Using the Response Surface Method and NSGA-II

Figure 7

Seismic fragility curves of various components and a bridge system with different design schemes of piers: (a) original scheme; (b) optimal scheme 1; and (c) optimal scheme 2 in the (1) slight, (2) moderate, (3) extensive, and (4) complete damage states.

(a)

(b)

(c)