Abstract
Nowadays, in designing engineering structures, behavioral control of the structural system is considered to reduce the effects of natural disasters such as earthquakes, which is always considered by the designers of the structure, and at this point it reveals its control science. In recent years, many control methods have been proposed to rehabilitate structures against earthquakes, among which active control is of particular importance. The purpose of this study is to investigate the fuzzy approach in active control of structures against earthquakes. For this purpose, in the first step, after providing generalizations, the application of fuzzy logic in civil engineering is discussed. Further, methods for using fuzzy logic are presented in the majority of numerical examples with related relations. The results of the studies show that fuzzy logic, in addition to a significant reduction in the volume of computations without the need for complex calculations, has satisfactory performance in controlling structures.