26.3.4. Effects on Structures

Try these first

1. 1.

   What type of motion do Rayleigh waves induce?

   Hint

   Think about how ocean waves move.

2. 2.

   What is differential settlement?

   Hint

   Consider how a building might settle on soft ground.

3. 3.

   What motion do Rayleigh waves create?

   • Only vertical
   • Only horizontal
   • Both vertical and horizontal

   Hint

   Think about how ocean waves move.

4. 4.

   True or False: Differential settlement refers to equal sinking of all parts of a building.

   • True
   • False

   Hint

   Consider how different soils might affect parts of a building.

5. 5.

   Evaluate the risks associated with building on soft soils in urban earthquake-prone areas.

   Hint

   Consider how different types of soil might behave during seismic events.

6. 6.

   Construct a case study analysis of a specific earthquake event where Rayleigh wave impact was significant, discussing the resulting damages and design lessons learned.

   Hint

   Look back to historical instances where urban infrastructure was heavily affected by seismic activity.