**4. Numerical Example**

In this section, the proposed methodology is applied to a 32-story case-study derived from an actual building in Medellin city, Colombia. The structure has a total elevation of 97 m, and the lateral force-resisting system consists of resistant moment frames. Besides, the structure has an irregular L-shape configuration in-plan, which makes it more vulnerable to seismic damage. The resulting mass, and stiffness matrix are 32 × 32 size, obtained by assuming in-plane infinitely rigid floor diaphragms and applying static condensation on the remaining vertical and rotational degrees of freedom. A complete characterization of the case-study can be found in the work presented by Caicedo et al. in [59]. Once the design parameters computed through WOA have been compared with the differential evolution method (DEM) and an exhaustive search (ES), the structural system is subjected to the action of the ground acceleration records used in the optimization process to assess its seismic performance by considering only the linear-elastic behavior of the structure. Then, the methodology proposed by Fallah and Zamiri [60] is adopted, in which, through a weighting procedure, a unique set of tuning parameters for a fixed *μ* value is proposed to verify the robustness of the design under different records than those used in the optimization process.
