On Seismic Torsional Response of Secondary Systems

Abstract

In regards to seismic response of secondary systems, maximum floor acceleration and floor response spectrum have been studied by many researchers. But characteristics of seismic torsional responses of secondary systems have not been clarified yet. In this paper, seismic torsional responses of secondary systems are investigated through response history analysis. A structural frame for secondary systems is assumed to be linear without irregularity. Secondary systems are also assumed to be linear but with plan irregularity. Characteristics of seismic torsional responses of secondary systems are clarified comparing with those of primary systems.