Seismic Design of Moment Resisting Frame Structures Equipped With Viscous Dampers

The effectiveness of viscous dampers in mitigating the seismic excitation impacts upon building structures has been widely proved. Recently, a direct practical procedure for dimensioning viscous dampers that are inserted in building structures has been proposed. The procedure, originally developed with reference to a shear-type structures schematization, provides an easy identification of the mechanical characteristics of the manufactured viscous dampers. In detail this paper presents a rational approach aimed at obtaining simple direct design formula for the dimensioning of each added viscous dampers that are to be inserted in generic moment-resisting frame structures.