Seismic performance of reinforced concrete (RC) shear walls with and without damped outriggers and controlled rocking DOI Creative Commons
Lisa Tobber, T.Y. Yang, Fawad Ahmed Najam

et al.

Engineering Structures, Journal Year: 2025, Volume and Issue: 330, P. 119899 - 119899

Published: Feb. 20, 2025

Language: Английский

Damping Enhancement Solution for Wind Turbines Through Amplifying Damping Transfer Systems DOI Creative Commons
Meng Wang,

Hai-Qiang Lu,

Piguang Wang

et al.

International Journal of Structural Stability and Dynamics, Journal Year: 2023, Volume and Issue: 24(09)

Published: July 28, 2023

This paper proposed a novel amplifying damping transfer system (ADTS) as new enhancement solution for high-rise structures like wind turbines. The ADTS can the upper rotation of turbine tower to its bottom with amplification mechanism. Hence, viscous damper be installed on turbines in very convenient and efficient way. dynamic characteristics equipped were parametrically investigated concerning influence damping, stiffness, position based complex frequency analysis. It was found that each mode has maximum ratio, which is affected by stiffness position. optimal first about 0.7 H (turbine height), positions second are at 0.3 0.86 H. considerably attenuated both drift acceleration responses caused winds earthquakes. For example, compared optimized tuned mass damper, further decreases displacement (acceleration) 22% (38%).

Language: Английский

Citations

11
Dynamic Vibration Characteristics and Mitigation of the Stress‐Ribbon Bridge by Using a Rail‐Damper System DOI Creative Commons
Kun Xu, H. Wang, Meng Wang

et al.

Structural Control and Health Monitoring, Journal Year: 2025, Volume and Issue: 2025(1)

Published: Jan. 1, 2025

Due to its simple and beautiful architectural appearance, the stress‐ribbon bridge (SRB) has been gradually built around world as a pedestrian or traffic bridge. However, characterized by low bending stiffness damping ratio features, SRB is prone dynamic effects of external excitations, such pedestrians, vehicles, and/or winds. To control vertical vibration SRB, rail‐damper system proposed in this study. In scheme, rotation handrails triggered flexural deformation utilized drive viscous dampers installed between adjacent handrails. The governing equations are established. key design parameters their influences on properties systematically investigated. performances further investigated through an numerical model subjected excitations. It discovered that can offer considerable supplemental structural modes reasonable design, achieving satisfactory performances. gain excellent effect real applications, nondimensional rail no less than 1000 recommended, damper should be controlled small possible.

Language: Английский

Citations

0
Study on the shear-torsional coupled mechanical model and design method of viscoelastic damper DOI
Xuelian Zhao,

Ying Zhou,

Liangkun Wang

et al.

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112122 - 112122

Published: Feb. 1, 2025

Language: Английский

Citations

0
Advanced Seismic Performance Assessment of a Base-Isolated Open Ground-Reinforced Concrete Structure Using Passive Negative Stiffness Device and Fluid Viscous Dampers DOI
Satya Eswara Sanyasi Rao Kolli,

Govardhan Bhatt

Journal of Earthquake Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 24

Published: Feb. 19, 2025

Language: Английский

Citations

0
Seismic performance of reinforced concrete (RC) shear walls with and without damped outriggers and controlled rocking DOI Creative Commons
Lisa Tobber, T.Y. Yang, Fawad Ahmed Najam

et al.

Engineering Structures, Journal Year: 2025, Volume and Issue: 330, P. 119899 - 119899

Published: Feb. 20, 2025

Language: Английский

Citations

0