Seismic Brake Demonstration - Earthquake Engineering

A demonstration of the importance of energy dissipation using a Quaketek seismic brake (force limiter) to quickly remove the input energy. The dangers of resonance in a frame, particularly without energy dissipation is also illustrated.

The energy input at various frequencies is stored by the frame. When there is no energy dissipation the frame can easily go into resonance and this induces large deformations. With the seismic brake installed, the energy is converted into heat which means it is no longer stored as potential energy in the system, the result is smaller deformations, forces and overall better stability.

These principles apply at full scale in structures as an earthquake will have various predominant frequencies. By integrating friction dampers structures can remain elastic and can be designed for smaller forces resulting in lower cost, better protected buildings.

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©Quaketek Inc. 2018. This video may be used for educational purposes, unauthorized commercial usage is prohibited.

Видео Seismic Brake Demonstration - Earthquake Engineering канала QuakeTek