Response of a Structure Isolated by a Coupled System Consisting of a QZS and FPS Under Horizontal Ground Excitation DOI Creative Commons

Richie Kevin Wouako Wouako,

Sandra Céleste Tchato,

Euloge Felix Kayo Pokam

и другие.

Buildings, Год журнала: 2025, Номер 15(9), С. 1498 - 1498

Опубликована: Апрель 28, 2025

The study of vibration isolation devices has become an emerging area research in view the extensive damage to buildings caused by earthquakes. ability effectively isolate seismic vibrations and maintain stability a building is thus addressed this paper, which evaluates effect horizontal ground excitation on response structure isolated coupled system consisting non-linear damper (QZS) friction pendulum (FPS). A single-degree-of-freedom was used model structures whose bases are subjected order assess effectiveness QZS–FPS coupling reducing structural response. results obtained revealed significant improvements performance when uses optimum stiffness. 30% reduction displacement recorded compared with QZS alone for two signals, one harmonic other stochastic. soft stiffness pulse reveals amplitudes reaching around eight times those at low frequencies approaching zero high frequencies. In comparison, rigid 0.9 3.5 higher than signal. Thus, resonance observed lower reported studies. This analysis highlights differences between types face pulses, underlining importance choice management applications. stochastic show that both hard soils, new causes vibrate horizontally maximum 0.003 m 0.007 respectively. So, can be more effective all isolators excitation. addition, demonstrated combination offer better control terms displacements.

Язык: Английский

Response of a Structure Isolated by a Coupled System Consisting of a QZS and FPS Under Horizontal Ground Excitation DOI Creative Commons

Richie Kevin Wouako Wouako,

Sandra Céleste Tchato,

Euloge Felix Kayo Pokam

и другие.

Buildings, Год журнала: 2025, Номер 15(9), С. 1498 - 1498

Опубликована: Апрель 28, 2025

The study of vibration isolation devices has become an emerging area research in view the extensive damage to buildings caused by earthquakes. ability effectively isolate seismic vibrations and maintain stability a building is thus addressed this paper, which evaluates effect horizontal ground excitation on response structure isolated coupled system consisting non-linear damper (QZS) friction pendulum (FPS). A single-degree-of-freedom was used model structures whose bases are subjected order assess effectiveness QZS–FPS coupling reducing structural response. results obtained revealed significant improvements performance when uses optimum stiffness. 30% reduction displacement recorded compared with QZS alone for two signals, one harmonic other stochastic. soft stiffness pulse reveals amplitudes reaching around eight times those at low frequencies approaching zero high frequencies. In comparison, rigid 0.9 3.5 higher than signal. Thus, resonance observed lower reported studies. This analysis highlights differences between types face pulses, underlining importance choice management applications. stochastic show that both hard soils, new causes vibrate horizontally maximum 0.003 m 0.007 respectively. So, can be more effective all isolators excitation. addition, demonstrated combination offer better control terms displacements.

Язык: Английский

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