34.3. Seismic Zoning and Zoning Maps

Try these first

1. 1.

   What are the four seismic zones in India?

   Hint

   Think about the increasing severity of earthquakes.

2. 2.

   What does the zone factor represent?

   Hint

   Consider what buildings need to withstand during an earthquake.

3. 3.

   Which zone in India has the highest seismic risk?

   • Zone II
   • Zone III
   • Zone IV
   • Zone V

   Hint

   Recall the order of zones based on severity.

4. 4.

   True or False: The Zone Factor for Zone III is 0.16.

   • True
   • False

   Hint

   Think about how each zone factor increases.

5. 5.

   If a building is located in Zone IV and needs to withstand a seismic event classified at the MCE level, what is the minimum Zone Factor that must be considered for its design?

   Hint

   Refer to the definitions of zones and corresponding factors.

6. 6.

   Propose a design modification for a structure initially planned for Zone II that is now required to be built in Zone V.

   Hint

   Consider the differences in expected ground motion between the two zones.