Active mass damper application in steel structures

Abstract

This paper deals with the influence of structural control on steel structures subjected to earthquake excitation. Response spectrum analysis is one case of earthquake analysis in structures. In some cases, the earthquake applied exceeds the design spectrum. This way, the only defence against the excitation is the structure’s ductility. In many cases, the result is severe damages that make the cost of rehabilitation unaffordable. The solution suggested in this paper is the design of a structure equipped with control devices. The control device applied to the models is the active mass damper (AMD). Parametric analyses are conducted in both symmetrical and non-symmetrical structures. Moreover, the simulation is extended to different approaches regarding the placement of the device in different floor levels and orientations.