Finite Element Analysis of Seismic Response in Structural Models with and without Fluid Viscous Dampers, Using a New Viscoelastic Model, Phase II
Disciplines
Civil and Environmental Engineering | Mechanical Engineering | Structural Engineering
Abstract (300 words maximum)
This research uses finite element analysis (FEA) to explore the dynamic response of composite buildings under seismic loading, focusing on optimizing damper configurations to enhance energy dissipation and reduce structural damage. The study examines various structural configurations, analyzing how fluid viscous dampers (FVDs) mitigate stress, displacement, and vibrations during dynamic events. Proper damper placement, including direction and location, is tailored to address specific structural vulnerabilities, significantly reducing inter-story drifts, improving force distribution, and ensuring safety.
Strategic damper placement, considering building height and inter-story behavior, maximizes performance, with systems like Toggle-Brace-Damper, Eccentric Lever-Arm, and Viscous Wall Dampers offering targeted solutions for efficient energy dissipation. The addition of FVDs results in a significant reduction in vibrations, enhancing resilience and minimizing structural fatigue.
In the configuration selected in this work, dampers are placed horizontally and connected to a near-rigid chevron frame. This approach maximizes energy dissipation by injecting the full movement into the damper's horizontal orientation, though some motion may be lost due to the frame's stiffness constraints.
The findings bridge the gap between theoretical modeling and practical application, providing insights for designing real-world experimental models to test vibration control strategies. The outcomes offer innovative solutions for improving the safety and stability of structures in seismically active regions, advancing both structural and mechanical engineering.
Academic department under which the project should be listed
SPCEET - Mechanical Engineering
Primary Investigator (PI) Name
Simin Nasseri
Finite Element Analysis of Seismic Response in Structural Models with and without Fluid Viscous Dampers, Using a New Viscoelastic Model, Phase II
This research uses finite element analysis (FEA) to explore the dynamic response of composite buildings under seismic loading, focusing on optimizing damper configurations to enhance energy dissipation and reduce structural damage. The study examines various structural configurations, analyzing how fluid viscous dampers (FVDs) mitigate stress, displacement, and vibrations during dynamic events. Proper damper placement, including direction and location, is tailored to address specific structural vulnerabilities, significantly reducing inter-story drifts, improving force distribution, and ensuring safety.
Strategic damper placement, considering building height and inter-story behavior, maximizes performance, with systems like Toggle-Brace-Damper, Eccentric Lever-Arm, and Viscous Wall Dampers offering targeted solutions for efficient energy dissipation. The addition of FVDs results in a significant reduction in vibrations, enhancing resilience and minimizing structural fatigue.
In the configuration selected in this work, dampers are placed horizontally and connected to a near-rigid chevron frame. This approach maximizes energy dissipation by injecting the full movement into the damper's horizontal orientation, though some motion may be lost due to the frame's stiffness constraints.
The findings bridge the gap between theoretical modeling and practical application, providing insights for designing real-world experimental models to test vibration control strategies. The outcomes offer innovative solutions for improving the safety and stability of structures in seismically active regions, advancing both structural and mechanical engineering.