30.1.1. Ground Motion Representation

Try these first

1. 1.

   What does PGA stand for?

   Hint

   It's a critical measure in seismic analysis.

2. 2.

   Name one characteristic of ground motion.

   Hint

   Think about what is measured during an earthquake.

3. 3.

   What does Peak Ground Acceleration (PGA) indicate?

   • Total energy released
   • Maximum acceleration during shaking
   • Duration of shaking

   Hint

   Think about what measure most reflects shaking intensity.

4. 4.

   True or False: Longer ground shaking durations can lead to increased risk of structural failure.

   • True
   • False

   Hint

   Consider the effects of shaking over time.

5. 5.

   Given a recorded PGA of 2g during an earthquake for a certain location, analyze the potential impacts on a standard residential building's design in terms of structural reinforcement needed.

   Hint

   Consider what reinforcement strategies might be important.

6. 6.

   Discuss the implications of earthquake duration on concrete structures compared to wooden structures, considering both are exposed to the same ground motion characteristics.

   Hint

   Consider material properties and how they might respond over time.