تحلیل مقایسه‌ای جانمایی‌های مختلف میراگرهای TADAS در ساختمان‌ فولادی ۵ طبقه

In recent years, the use of hysteretic dampers, particularly TADAS dampers, has attracted considerable attention as an effective method for improving the seismic performance of structures. The main objective of this study is to investigate and compare the effects of different placements of TADAS dampers on reducing inter-story drift and increasing the amount of dissipated energy in a five-story steel building with a moment-resisting frame system.

In this research, a numerical model of the structure without dampers was first developed in SAP2000 software. Subsequently, TADAS dampers were applied at various frame locations, and nonlinear time history analyses were performed under selected earthquake records. The results indicate that the use of TADAS dampers leads to a significant reduction in inter-story drift and an increase in the effective stiffness of the structure. In some configurations, the roof displacement decreased by up to 38%, while the reductions in other stories reached 23%. Moreover, the amount of energy dissipated by the dampers showed a remarkable increase—approximately 40% compared to the undamped case—demonstrating an improvement in the seismic performance of the structure.

This study concludes that the placement of dampers plays a crucial role in the structural response under seismic forces, and comparing different configurations can provide valuable guidance for designing more resilient structures.