How can we model the effect of resonance on buildings during an earthquake?
The rolling motion of a seismic wave may move at the same frequency of a building. The structure will then sway back and forth during the seismic vibration. The frequency at which this phenomenon, called resonance, occurs is the resonant frequency. A building's architectural design, height (how many stories), and construction materials affect resonance. Buildings engineered with earthquake shaking in mind will withstand resonance and serious damage.
Learners will be able to:
• Explore the concept of resonant frequency for different building heights.
• Investigate how seismic energy enters a structure and how resonance affects building oscillation.
• Explore how engineering design principles help mitigate damage to structures during an earthquake.