Seismic design optimisation of RC moment frames and dual shear wall-frame structures VIA CSS algorithm

This article presents an optimization problem for accomplishing seismic design of Reinforced Concrete (RC) dual systems and RC frames. The charged system search algorithm is chosen for the optimization. An efficient structural modeling is also presented for this purpose. Here, first databases are constructed according to ACI seismic design criteria for beams, columns and shear walls. Formulations for optimum seismic design of dual systems (shear wall-frame) are proposed. With some manipulations on these formulations, optimal seismic design of RC moment resisting frames is also performed. This procedure is together with ordinary design constraints and principal seismic design constraints. These constraints consist of beams, columns, shear wall design criteria, and some seismic design provisions. Cost of the structure is defined as the objective function. Based on the results of the design examples, the proposed methodology can be considered as a suitable practical approach for optimal seismic design of reinforced concrete moment resisting frames and dual structural systems consisting of structural wall.