33.15. Comparison Between Code-Based and Site-Specific Spectra

Try these first

1. 1.

   What is a code-based spectrum?

   Hint

   Think about how codes are made generic for safety.

2. 2.

   Why might site-specific spectra be more accurate?

   Hint

   Local factors can change seismic responses.

3. 3.

   What data does a code-based spectrum primarily utilize?

   • Local soil data
   • National seismic codes
   • Random sampling

   Hint

   Think about government guidelines.

4. 4.

   Site-specific spectra provide what level of accuracy?

   • Low
   • Moderate
   • High

   Hint

   Consider the importance of local conditions.

5. 5.

   Evaluate the risks of using a code-based spectrum in designing a critical hospital in an area with soft soil. What could be the unseen consequences?

   Hint

   Consider how soil properties change response to shaking.

6. 6.

   Design a seismic strategy for a new high-rise building. Outline when to utilize code-based vs. site-specific spectra based on location and structure use.

   Hint

   Consider the building's purpose and the surrounding environment.