Global optimization of locally installed adaptive negative stiffness amplifying damper in steel frames through rocking wall

Journal of Building Engineering, Journal Year: 2022, Volume and Issue: 60, P. 105196 - 105196

Published: Aug. 30, 2022

Language: Английский

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Design of the negative stiffness NegSV mechanism for structural vibration attenuation exploiting resonance

International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 260, P. 108640 - 108640

Published: July 24, 2023

The principle of influencing oscillation amplitudes a primary system via secondary attachments can be enhanced with inclusion nonlinear mechanisms towards energy absorption. This work exploits such scheme, termed the NegSV device, which harnesses geometrically mechanism to create negative stiffness for vibration attenuation. suggested device succeeds in shifting characteristics and, therefore, alters overall dynamics without additional mass requirements. top part structure act as resonator respect lower by matching respective resonant frequencies and thus directing at specified locations. Analytical solutions demonstrate improvement dynamic performance system, is modified attachment proposed device. Physical testing on 3 dimensional frame further performed, shaking table tests, mounted storey experimental structure. experiment reveals reduction acceleration inter-storey drift response all levels below retrofit, while requirement increased top-storey drifts identified. Nonlinear finite element analyses are finally performed detailed numerical model, agreement measurements exploited mechanism's design. shows significant potential attenuating structural vibration, offering benefit ease installation.

Language: Английский

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Seismic behavior of steel frames with H-shaped damper

Journal of Constructional Steel Research, Journal Year: 2023, Volume and Issue: 213, P. 108401 - 108401

Published: Dec. 23, 2023

Language: Английский

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Parametric study of the innovative model of angled U-shape damper with multiphase yielding mechanism

International Journal of Non-Linear Mechanics, Journal Year: 2024, Volume and Issue: unknown, P. 104998 - 104998

Published: Dec. 1, 2024

Language: Английский

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Structural feasibility of braced-damper system with adaptive negative stiffness devices in yielding multi-storey steel frames

Journal of Constructional Steel Research, Journal Year: 2022, Volume and Issue: 197, P. 107494 - 107494

Published: Aug. 16, 2022

Language: Английский

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