Effects of Changes in Contracted degree of freedom on Plasticization Prediction of Hysteretic Damper in High-rise passively controlled building

Abstract

The current wind-resistant design of structures is performed under the assumption that the main structure is kept to an elastic state and mainly relies on design guidelines for load recommendations on buildings. However, as the building’s height increases, it becomes subjected to stronger external wind forces. In this circumstance, if a hysteretic damper is installed in a high-rise building, there is a possibility that the damper may behave plastically due to larger external wind forces. Therefore, understanding the plasticity behavior of hysteretic dampers installed in high-rise buildings under the load recommendations on buildings will pave the way to easily evaluate the elasto-plastic behavior of these passively controlled buildings. For this reason, the authors propose a method to determine the hysteretic damper plasticity based on the load recommendations on buildings and examine the effect of using an equivalent model with reduced degree of freedom.