investigating of the effect of thickness and numbers of t-adas plates for improving the performance of steel frames under syclic loading

the progress in the field of dampers has proved their good performance in structure of modern structures and strengthening the existing structures. their behavior against the seismic forces is nonlinear and the time history analysis is important for them. by adding the yielding dampers, most of the input energy is absorbed by dampers during the earthquake and plastic behavior in structural members is restrained, so the behavior of frame will be improved. by investigating some important parameters, the behavior of structure will be studied. in the present article, abaqus finite element software is used and six adas dampers with different numbers and thicknesses are studied. to do the analysis, three dampers are modeled based on the design. two of the dampers are weaker and the other one is stronger compared with the design. the number and thickness of these dampers affect the energy absorption. after applying cyclic loading, the hysteresis loop and the absorbed energy by plasticizing are compared and the better model is determined.