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Design of displacement-based viscous damper damping structures
Shuo Dong1,2, Wen Pan3,4, Liaoyuan Ye2,5
1Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming, Yunnan, 650500, China.
Scientific Reports
|April 6, 2025
Summary
This study optimizes viscous dampers for high-rise buildings, significantly reducing seismic displacement and acceleration. The new design meets stringent seismic codes, enhancing structural safety in urban environments.
Area of Science:
- Structural Engineering
- Earthquake Engineering
- Materials Science
Background:
- Urbanization drives demand for taller, denser buildings, increasing seismic risk.
- Viscous dampers offer robust recovery, reusability, and excellent seismic performance for high-rise structures.
- Effective seismic protection is crucial for modern structural design.
Purpose of the Study:
- To enhance the seismic damping effect in building structures.
- To design a displacement-based vibration-damping structural configuration using viscous dampers.
- To optimize the distribution parameters of damping structures.
Main Methods:
- Utilizing a restoration force model to simulate viscous damper resistance to seismic forces.
- Employing time course analysis for dynamic response assessment of structures.
- Applying multi-objective optimization for damping structure parameter tuning.
Main Results:
- The optimized design achieved a maximum inter-story displacement angle of 1/909, below the 1/1000 limit.
- Demonstrated a 41.93% decrease in inter-story displacement angle.
- Showcased a 16.27% reduction in acceleration and a 6.72% decrease in layer displacement.
Conclusions:
- The displacement-based viscous damper design effectively mitigates seismic impact on buildings.
- The design complies with the Chinese code for seismic design of buildings (GB 50011-2010).
- Findings provide valuable data for seismic loss estimation in construction projects.
Keywords:
Concrete structuresEnergy dissipation and dampingFinite element analysisSeismic performanceViscous damperMore Related Videos
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