کنترل ارتعاشات دینامیکی غیرخطی سازه های نامنظم با استفاده از میراگرهای تسلیمی TADAS در برابر تاثیر توامان انفجار و زلزله

The study of the simultaneous impact of earthquakes and explosions on structures has been considered by researchers in recent years. On the other hand, irregular effects in structures lead to increased complexity in predicting the behavior of structures. Thus, in this article, for the first time, the simultaneous impact of earthquakes and explosions on irregular structures is investigated. For this purpose, an 8-story three-dimensional concrete structure is modeled and analyzed using OpenSees software. The modeled structure is first analyzed without dampers against the combined effects of an explosion with an earthquake. In this paper, the combined effect of explosions with 8 different earthquakes has been investigated separately. Then, in the next step, the placement of TADAS dampers and their specifications are designed in such a way that the performance level of the structure against this type of loading reaches the level of Immediate occupancy (IO) performance. Based on the results obtained from nonlinear static analysis of two structures without dampers and equipped with dampers, it was found that the use of dampers in this structure causes the capacity of the structure to increase by about two times. Also, based on nonlinear dynamic analysis of structures, it can be concluded that the use of this type of damper can reduce the drift and displacement of the structure by more than 60%. Also, using the correct arrangement of these dampers in irregular structures can reduce irregular effects.