Research Article

Optimum Performance-Based Seismic Design Using a Hybrid Optimization Algorithm

Table 1

The statistical information of performance-based optimum designs for the 4-bay 3-story frame.

AlgorithmHybrid CSSPSACO [40]PSO [40]ACO [27]GA [27]A conventional design [41]

Best weight (kN)273.7279.2 286.3 283.4 303.9 412.9 kN
Average weight (kN)286.7290.4302.4 294.3 321.5
Worst weight (kN)297.8298.5310.7 303.2 339.7
Std. dev. (kN)5.6516.45310.453 7.566 14.332
Average number of analyses4,5004,5008,500 3,9006,800