Seismic Damage Assessment of Steel Buildings considering Viscoelastic Dampers in Near-Field Earthquake

In this study, three flexural steel frames of 4, 8, and 12 floors were investigated. The designed based on the standard guidelines then subjected to nonlinear dynamic analysis. Damage structures with concept inelastic behavior and, consequently, hysteresis energy is very close. Therefore, it can be said that at these levels a significant criterion for designing or controlling structure. high dependence structural damage has caused new design methods considered by researchers engineers. research, first 12-story medium bending frame system statically equivalent method. Then, all under effect seven near-field accelerometers far-field analyzed nonlinearly dynamically. purpose study investigate distribution damage, energy, relative displacement, roof base shear in studied frames. following, necessity using reinforcement method reduce displacement described regulations, viscoelastic dampers are used strengthen study. results show despite uniform resistance height floors, diagrams do not follow concentration observed one more floors. order make best use maximum capacity, strength alone does seem logical other parameters such as which play major role member should process. Viscoelastic have been retrofitting. type damper great absorbing reducing buildings. By calculating whole structure, was seen level earthquakes greater than distant also higher number structure increases, values increase. As added layers, highly reduced so that, floor field earthquakes, 54%, 45%, 48% decrease, respectively, 55%, 68%, 64%, respectively. Also, high-altitude shows good performance near area.