In seismic codes, elastic response spectra are usually defined by adopting a conventional value for the damping ratio equal to 5%. Damping Reduction Factors (DRFs) are then introduced to account for the effect of damping values higher than the nominal 5%. In this framework, the main aim of the present study is to explore a new definition of DRF. The concept of stochastic response spectrum is used for predicting the earthquake response of a structural system by adopting the random vibration theory for nonstationary processes. The peak theory is finally used to determine the DRF.
Effects of Excitation Bandwidth on Damping Reduction Factor / Greco, Rita; Fiore, Alessandra; Marano, Giuseppe Carlo; Briseghella, Bruno. - In: JOURNAL OF EARTHQUAKE ENGINEERING. - ISSN 1363-2469. - ELETTRONICO. - (2021). [10.1080/13632469.2018.1528910]
Effects of Excitation Bandwidth on Damping Reduction Factor
Rita Greco;Alessandra Fiore
;Giuseppe Carlo Marano;
2021-01-01
Abstract
In seismic codes, elastic response spectra are usually defined by adopting a conventional value for the damping ratio equal to 5%. Damping Reduction Factors (DRFs) are then introduced to account for the effect of damping values higher than the nominal 5%. In this framework, the main aim of the present study is to explore a new definition of DRF. The concept of stochastic response spectrum is used for predicting the earthquake response of a structural system by adopting the random vibration theory for nonstationary processes. The peak theory is finally used to determine the DRF.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
