Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Input energy spectra for self-centering SDOF systems
https://orcid.org/0000-0001-9553-5419
https://orcid.org/0000-0001-8369-4842
Abstract This study proposes a procedure for determining design input energy spectra for self-centering single-degree-of-freedom (SDOF) systems using a characteristic flag-shaped hysteretic model. The procedure for determining design input energy spectra considers the influence of ground motion factors, hysteretic models, damping ratios, and ductility factors. First, nonlinear dynamic time history analyses are performed using 40 representative ground motion records to establish the relationship between input energy spectra and critical parameters. Based on this, normalized design input energy spectra and relevant parameters are proposed. The results of this study indicate that the bilinear hysteretic model is not suitable to accurately predict the input energy spectra for self-centering systems. Meanwhile, both the damping ratio and ductility factor have a significant influence on the resulting input energy spectra throughout the entire period range. The proposed procedure can be used to predict earthquake input energy spectra for self-centering SDOF systems.
Highlights The parameters influencing the earthquake input energy spectra for self-centering SDOF systems are investigated. The classification for ground motion is based on earthquake records properties, including PGV/PGA and effective duration t D . The normalized design input energy spectra for self-centering SDOF systems have been proposed.
Input energy spectra for self-centering SDOF systems
https://orcid.org/0000-0001-9553-5419
https://orcid.org/0000-0001-8369-4842
Abstract This study proposes a procedure for determining design input energy spectra for self-centering single-degree-of-freedom (SDOF) systems using a characteristic flag-shaped hysteretic model. The procedure for determining design input energy spectra considers the influence of ground motion factors, hysteretic models, damping ratios, and ductility factors. First, nonlinear dynamic time history analyses are performed using 40 representative ground motion records to establish the relationship between input energy spectra and critical parameters. Based on this, normalized design input energy spectra and relevant parameters are proposed. The results of this study indicate that the bilinear hysteretic model is not suitable to accurately predict the input energy spectra for self-centering systems. Meanwhile, both the damping ratio and ductility factor have a significant influence on the resulting input energy spectra throughout the entire period range. The proposed procedure can be used to predict earthquake input energy spectra for self-centering SDOF systems.
Highlights The parameters influencing the earthquake input energy spectra for self-centering SDOF systems are investigated. The classification for ground motion is based on earthquake records properties, including PGV/PGA and effective duration t D . The normalized design input energy spectra for self-centering SDOF systems have been proposed.
Input energy spectra for self-centering SDOF systems
https://orcid.org/0000-0001-9553-5419
https://orcid.org/0000-0001-8369-4842
Abstract This study proposes a procedure for determining design input energy spectra for self-centering single-degree-of-freedom (SDOF) systems using a characteristic flag-shaped hysteretic model. The procedure for determining design input energy spectra considers the influence of ground motion factors, hysteretic models, damping ratios, and ductility factors. First, nonlinear dynamic time history analyses are performed using 40 representative ground motion records to establish the relationship between input energy spectra and critical parameters. Based on this, normalized design input energy spectra and relevant parameters are proposed. The results of this study indicate that the bilinear hysteretic model is not suitable to accurately predict the input energy spectra for self-centering systems. Meanwhile, both the damping ratio and ductility factor have a significant influence on the resulting input energy spectra throughout the entire period range. The proposed procedure can be used to predict earthquake input energy spectra for self-centering SDOF systems.
Highlights The parameters influencing the earthquake input energy spectra for self-centering SDOF systems are investigated. The classification for ground motion is based on earthquake records properties, including PGV/PGA and effective duration t D . The normalized design input energy spectra for self-centering SDOF systems have been proposed.
Input energy spectra for self-centering SDOF systems
Zhou, Ying (Autor:in) / Song, Ge (Autor:in) / Huang, Shimin (Autor:in) / Wu, Hao (Autor:in)
Soil Dynamics and Earthquake Engineering ; 121 ; 293-305
14.03.2019
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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