Seismic Mitigation Effect of Lever-Type Lead Viscoelastic Node Dampers

Seismic Mitigation Effect of Lever-Type Lead Viscoelastic Node Dampers

Energy dissipation damping technology is usually used for infrastructure construction in seismic regions. In this study, a lever-type lead viscoelastic node damper (LTLVND), which can capture small rotational displacements of the infrastructure under seismic excitation, is innovatively proposed base...

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Veröffentlicht in:Structural control and health monitoring 2023-10, Vol.2023, p.1-22
Hauptverfasser: Ye, Mao, Jiang, Jin, Zhou, Jingya, Zhang, Wuliang, Huang, Baotao, Wu, Ming
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container_title Structural control and health monitoring
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creator Ye, Mao
Jiang, Jin
Zhou, Jingya
Zhang, Wuliang
Huang, Baotao
Wu, Ming
description Energy dissipation damping technology is usually used for infrastructure construction in seismic regions. In this study, a lever-type lead viscoelastic node damper (LTLVND), which can capture small rotational displacements of the infrastructure under seismic excitation, is innovatively proposed based on the leverage effect. The characteristics of energy-absorbing capacity of the LTLVND and its mitigation effect on the dynamics of the structure under seismic excitation are studied. Testing and modelling results show that a satisfactory energy dissipation effect can be observed for the innovative lead viscoelastic damper (LTLVND). Finally, a seismic analysis of a concrete frame structure with LTLVNDs is carried out. Pushover analysis and dynamic elastoplastic analysis are included. It is shown that a significant improvement in structural performance under seismic conditions can be achieved with the addition of LTLVNDs at appropriate locations.
doi_str_mv 10.1155/2023/1552150
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