26.3.3. Energy Distribution and Dispersion

Try these first

1. 1.

   What are Rayleigh waves?

   Hint

   Consider their movement and the type of seismic wave.

2. 2.

   Why is dispersion important in Rayleigh waves?

   Hint

   Think of how different frequencies might impact buildings.

3. 3.

   What motion characterizes Rayleigh waves?

   • Linear
   • Retrograde elliptical
   • Circular

   Hint

   Think about their wave motion compared to other types.

4. 4.

   True or False: Dispersion in Rayleigh waves means all frequencies travel at the same speed.

   • True
   • False

   Hint

   Consider what this means for seismic analysis.

5. 5.

   Given a layered soil profile, determine how the presence of a soft layer affects the propagation of Rayleigh waves during an earthquake.

   Hint

   Consider how energy transfer works through different soil types.

6. 6.

   Design a structural element that mitigates the effects of Rayleigh waves on multi-story buildings.

   Hint

   Think about how vibrations can be absorbed or dampened.