5.13.3. Pseudo vs Actual Spectra

Try these first

1. 1.

   What does Pseudo Spectral Acceleration (PSA) measure?

   Hint

   Think about how much the structure shakes.

2. 2.

   What does Spectral Displacement (SD) represent?

   Hint

   Consider how far a building moves.

3. 3.

   What does Pseudo Spectral Acceleration (PSA) measure?

   • Maximum velocity
   • Maximum acceleration
   • Maximum displacement

   Hint

   Consider measurements during a quake.

4. 4.

   True or False: Spectral Displacement (SD) indicates how fast a structure moves during an earthquake.

   • True
   • False

   Hint

   Think about what's being measured.

5. 5.

   A building is tested under seismic conditions and recorded a maximum displacement of 0.8m, with a natural frequency of 4Hz. Calculate the PSA for this building.

   Hint

   Use the formula and substitute values correctly.

6. 6.

   Discuss how misconceptions about the relationship between PSA, SD, and SV could lead to structural design failures.

   Hint

   Consider the implications of miscalculation.