34.6.2. Seismic Weight (W)

Try these first

1. 1.

   What is Seismic Weight?

   Hint

   Consider what contributes to a building's total weight.

2. 2.

   Why is it essential to consider imposed loads in seismic weight?

   Hint

   Think of what else might be present on a building.

3. 3.

   What does Seismic Weight include?

   • Only dead load
   • Dead load + Imposed loads
   • Only imposed loads

   Hint

   Think about what contributes to a structure's total weight.

4. 4.

   True or False: Seismic weight includes only the permanent loads.

   • True
   • False

   Hint

   Consider the types of loads that a building experiences.

5. 5.

   A multi-story building has a seismic weight of 1,000,000 kg. The site has a zone factor of 0.25, and the response reduction factor is 4. Calculate the expected base shear during a design earthquake.

   Hint

   Refer to the base shear formula!

6. 6.

   Explain how you would adjust the seismic weight calculation if a building's design includes a rooftop garden weighing 20,000 kg.

   Hint

   Consider how additions to the building change its total load.