43.3. Passive Control Systems

Try these first

1. 1.

   What is a Tuned Mass Damper (TMD)?

   Hint

   Focus on the device's purpose and components.

2. 2.

   What is the primary function of base isolation?

   Hint

   Consider what happens during an earthquake.

3. 3.

   What is the primary function of a Tuned Mass Damper?

   • To absorb sound
   • To reduce vibrations
   • To increase weight
   • To enhance aesthetic appeal

   Hint

   Focus on the TMD's purpose.

4. 4.

   True or False: Base isolation systems require external energy to function.

   • True
   • False

   Hint

   Remember the definition and operational characteristics of these systems.

5. 5.

   Design a structural system for a new skyscraper in a seismically active area using a combination of TMDs and base isolation. Justify your choices.

   Hint

   Consider factors like height, building materials, and local seismic history.

6. 6.

   Evaluate the effectiveness of using friction dampers in an existing building that suffers from excessive lateral sway. Include potential drawbacks.

   Hint

   Take into account the balance between efficiency and maintenance.