40. Codal Provisions

Try these first

1. 1.

   What are the four seismic zones of India?

   Hint

   Think about the risk level associated with them.

2. 2.

   What is the importance factor for hospitals in seismic zones?

   Hint

   Consider how essential hospitals are during earthquakes.

3. 3.

   What represents the severity of ground shaking in seismic zones?

   • Base Shear
   • Zone Factor
   • Importance Factor

   Hint

   Look for the term directly linked to seismic risk classifications.

4. 4.

   True or False: Ductile detailing is only required for buildings in Zone I.

   • True
   • False

   Hint

   Consider where most seismic activity occurs.

5. 5.

   A multi-story building in Zone III has a dead load of 500 kN and a live load of 200 kN. Calculate its seismic weight and base shear if Z = 0.2 and I = 1.0.

   Hint

   Combine dead and live loads accurately for total weight.

6. 6.

   Describe how a structure can be retrofitted for better seismic resistance using base isolators.

   Hint

   Consider how flexibility can improve stability during quakes.