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A novel Friction Pendulum System (FPS) that improves on the recovery capability of current friction pendulum systems and increases energy dissipation capacity.
A research team from the University of Alberta has developed a novel Friction Pendulum System (FPS) design that incorporates Shape Memory Alloy (SMA) elements in such a way to improve on the device’s recentering ability, as well as reduce the separation of FPS elements when experiencing vertical seismic loads. By integrating SMA elements, this Smart FPS design improves on the energy dissipation capacity of conventional FPS designs, and also features a specialized technique to apply pre-stress to the SMA elements, eliminating the permanent deformation that can result from degradation of the SMA under dynamic loads. These features improve on the overall recovery capability of current FPS designs, further reducing the damage to buildings that experience seismic events.
The Smart FPS has been designed for use in steel, concrete, and timber buildings, particularly high-rises, to maintain their stability and serviceability when experiencing ground motion having different intensities, frequency content, and magnitudes. It can be easily integrated into building foundations without the need to change structural elements.
Intellectual property status
Patent already applied for
Patent application number : WO2023108301A1
Where : PCT
Transforming discoveries and innovations into reality is a complex and lengthy process. UAlberta’s Technology Transfer Services (TTS) team helps facilitate this journey. Part of the Vice-President (Research and Innovation) portfolio, TTS helps researchers, postdoctoral fellows, staff and students transform innovations and discoveries into reality—moving them out of the university to benefit society, the economy, the world.
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