Mohaddese Sadeghpour
VahidReza kalatjari
Hossein Pahlavan
Abstract
Optimization of structures in civil engineering means designing structures in such a way that both technical issues are observed and they have the lowest execution cost. Today, due to the limitations of urban lands and the type of use of some structures, special truss momnet frames(STMF) have become more important due to its use in large openings. In this paper, the optimization of special truss moment frame by genetic algorithm under modal incremental dynamic analysis(MIDA) has been considered. For this purpose, the optimal design of two three-story frames with one and two openings with the aim of simultaneously optimizing the weight of the structure and its seismic performance is presented. Problem design restrictions are in accordance with AISC341-16. The optimization code is written in MATLAB software environment and OPENSEES software is used for structural analysis. The results show the high capability of this method for optimal seismic design of this type of structures.
Keywords
Optimization; Special truss moment frame; Genetic algorithm; Seismic optimal design; Modal incremental dynamic analysis
