35.24. IS Code Recommendations Related to PGA

Try these first

1. 1.

   What does PGA stand for?

   Hint

   Think about the maximum acceleration during an earthquake.

2. 2.

   What is the Zone Factor used for?

   Hint

   Consider the seismic zones in India.

3. 3.

   What does PGA stand for in earthquake engineering?

   • Peak Ground Analysis
   • Peak Ground Acceleration
   • Peak Ground Amplitude

   Hint

   Think about what the maximum ground motion indicates.

4. 4.

   True or False: The zone factor indicates the level of seismic risk in a given area.

   • True
   • False

   Hint

   Reflect on the relation between zones and their associated risks.

5. 5.

   Consider a building designed for seismic zone IV with a zone factor of 0.24g. If it experiences a ground motion with an actual PGA of 0.36g, what are the implications for structural safety?

   Hint

   Think about how exceeding design limits impacts structure stability.

6. 6.

   Evaluate how the choice of site for a hospital might differ compared to a residential building in the same seismic zone. What factors must be taken into account?

   Hint

   Reflect on the difference in safety requirements for critical infrastructure.