35.2. Engineering Importance of PGA

Try these first

1. 1.

   What does PGA stand for?

   Hint

   Think about what maximum ground shaking refers to during an earthquake.

2. 2.

   Why is PGA important for structural design?

   Hint

   Consider the safety of buildings during earthquakes.

3. 3.

   What does PGA stand for?

   • Peak Ground Acceleration
   • Peak Gravity Acceleration
   • Peak Ground Anti-seismic

   Hint

   Think about what the acronym implies.

4. 4.

   True or False: PGA is primarily used to prevent buildings from collapsing during earthquakes.

   • True
   • False

   Hint

   Ask yourself about the implications of PGA for safety standards.

5. 5.

   Design a small residential building in a seismic zone with a known PGA of 0.24g. What design considerations must be factored in, and how would you justify your choices?

   Hint

   PGA dictates design standards; think about how materials can help mitigate those stresses.

6. 6.

   Evaluate a situation where an infrastructure project underestimated the PGA. Discuss the potential fallout and solutions to mitigate risk.

   Hint

   Consider historical failures and their causes to inform possible solutions.