44.8. Use of Seismic Base Isolation

Try these first

1. 1.

   What is the main purpose of seismic base isolation?

   Hint

   Think about how the building's structure relates to ground movement.

2. 2.

   Name one type of isolator used in seismic base isolation.

   Hint

   Remember LRB as an important type.

3. 3.

   What is the primary function of seismic base isolation?

   • To increase building height
   • To decouple the structure from ground motion
   • To elevate the building

   Hint

   Focus on what it means to 'decouple' the structure.

4. 4.

   True or False: Friction Pendulum Systems are used to reduce lateral movement during an earthquake.

   • True
   • False

   Hint

   Think about how the system operates during seismic events.

5. 5.

   Design a comprehensive seismic isolation strategy for a 30-story building in a seismic zone, including the selection of isolators based on performance characteristics.

   Hint

   Focus on factors like damping characteristics and material capabilities.

6. 6.

   Compare and contrast the functions of Lead Rubber Bearings and Friction Pendulum Systems in seismic design. Which scenario would favor using one over the other?

   Hint

   Analyze their operational principles and where they excel.