4.13.2. Tuned Mass Dampers (TMD)

Try these first

1. 1.

   What does a Tuned Mass Damper (TMD) do?

   Hint

   Think about vibrations control.

2. 2.

   Name one effect of TMDs.

   Hint

   Consider what happens during an earthquake.

3. 3.

   What is the main function of a Tuned Mass Damper?

   • To absorb shock
   • To reduce vibrations
   • To increase resonance

   Hint

   Consider its purpose in controlling forces.

4. 4.

   True or False: TMDs can only be used in buildings taller than 30 stories.

   • True
   • False

   Hint

   Focus on where vibrations occur.

5. 5.

   Design a theoretical TMD for a hypothetical high-rise building with a natural frequency of 0.5 Hz to explicitly counteract dynamic loading by an external force oscillating also at 0.5 Hz. Discuss the considerations you would need to account for in your design.

   Hint

   Think about how natural frequencies can reinforce or counteract each other.

6. 6.

   Evaluate the impact of TMDs on a structure with irregular shapes and natural frequencies above 1 Hz concerning seismic events. Would TMDs still be effective, or would alternative solutions be required?

   Hint

   Consider how different building shapes influence oscillation patterns.