5.5.3. Effective Parameters

Try these first

1. 1.

   Define effective mass in the context of SDOF systems.

   Hint

   Think about how mass influences motion.

2. 2.

   What does effective stiffness represent?

   Hint

   Consider elasticity and structure stability.

3. 3.

   What does effective mass represent in SDOF systems?

   • Total mass
   • Mass participating in seismic response
   • Mass of structural elements

   Hint

   Focus on mass contribution during dynamic loads.

4. 4.

   Effective stiffness influences the structural response during seismic events.

   • True
   • False

   Hint

   Remember how stiffness affects movement.

5. 5.

   Given an SDOF structure with an effective mass of 500 kg and an effective stiffness of 10000 N/m, calculate the natural frequency.

   Hint

   Use the formula ω = √(k/m) to find the frequency.

6. 6.

   If an effective damping ratio is 0.05, how does this affect the structural response during a seismic event?

   Hint

   Consider how damping impacts vibrations and movement.