Author(s)

L. Decanini, F. Mollaioli, A. Mura

Abstract

Equivalent SDOF systems for the estimation of seismic response of multistory frame structures L. Decanini, F. Mollaioli, A. Mura University of Rome "La Sapienza", Italy Abstract In this research an approximate investigation has been carried out on the seismic response of multistory frame structures. The simplifying hypothesis on which the adopted methodology is based is the assumption of an assigned time-independent global deflection shape for the lateral displacements of the frame. This hypothesis corresponds to consider the dynamic response of the frame limited to the first vibration mode only, both in elastic and in inelastic behavior. The above mentioned simplification firstly allows the reduction of the response of MDOF systems to the response of an equivalent simple system (ESDOF), defined by means of appropriate values for mass, stiffness and viscous damping; on the other hand, it allows an approximate extension of the calculation of parameters characterizing the seismic r

Keywords