INVESTIGATING THE SEISMIC PERFORMANCE OF THE HONEYCOMB YIELDING DAMPER(HYD)

Today, the use of energy-dissipating systems such as yielding metal damper in structures can improve the seismic performance of structures. One of the characteristics of metal-yielding dampers is the ability to dissipate high energy and increase the ductility of the structural system, which can improve the ductility and energy absorption characteristics of the metal frame equipped with braces and prevent the brace from buckling during an earthquake. The purpose of this research is to introduce a new form of yielding damper called honeycomb yielding damper (HYD) with different dimensions and thicknesses along with evaluating and comparing the force-displacement diagrams and investigating the seismic parameters of this type of yielding damper. All modeling and validation of numerical samples were done by Ansys software. The non-linear analysis method is used in this research. The hysteresis curves are obtained under in-plane cyclic loads. The mechanical parameters such as ductility ratio, initial hardness, effective hardness, and damping coefficient can be determined. The results of this research showed that the effective stiffness increases by increasing the length and thickness of the sample. The ductility ratio decreases by increasing the height of the sample. the effective stiffness decreases by increasing the height of the sample. The ductility ratio increases by increasing the height of the sample. Also, the effective damping coefficient decreases with the increase in the height of the samples, the effective damping coefficient increases with the increase in the length and thickness of the samples.