32.7.1. Passive Control Systems

Try these first

1. 1.

   What is the main purpose of passive control systems in structures?

   Hint

   Think of energy sources for structural safety.

2. 2.

   Name one type of passive control system.

   Hint

   Remember, one allows movement while the other counters it.

3. 3.

   What do passive control systems rely on?

   • External power
   • Inherent properties of materials
   • Active energy sources

   Hint

   Think about how they operate without power.

4. 4.

   True or False: Tuned mass dampers operate by increasing the building's movement during an earthquake.

   • True
   • False

   Hint

   Think of the relationship between movement and vibration control.

5. 5.

   Calculate the expected sway reduction in a building with base isolation assuming the seismic force is reduced by 50%.

   Hint

   Consider how force reduction correlates with sway.

6. 6.

   How can TMD systems be tuned for optimal performance? Provide a real-world application as an example.

   Hint

   Look into frequency and damping characteristics in structural engineering.