Investigation of the Effect of Using Slit Dampers on the Seismic Behavior of Steel Structures of Moment Frame

Abstract

This study was carried out aimed to investigate the effect of the use of Added Damping and Stiffness (ADAS) damper on the behavior of steel structures with moment steel frame. Non-Linear Finite Element Analysis Modeling with ABAQUS was used for modeling. Nonlinear static and time history dynamic analysis were used. The behavior of structures with and without dampers in structures with different number of stories was compared. According to the results, in a five-story structure, the use of ADAS damper in the first and second floors reduces the value of roof displacement of the structure by 30% and the value of roof displacement reduces by 52% using ADAS damper in all floors. In a ten-story structure, the use of ADAS damper on the first and second floors has reduced the value of roof displacement by 22% and the use of a flow damper on all floors has reduced the value of roof displacement by 47%. In a 15-storey structure, the use of ADAS damper in the first and second floors has reduced the value of roof displacement by 36% and the use of ADAS damper in all floors has reduced the value of roof displacement by 60%. In general, it can be concluded that the use of metallic dampers in the beam-to-column connections improves the performance of steel structures.