Equivalent SDOF Systems For The Estimation Of Seismic Response Of
Multistory Frame Structures
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
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