4. Difference Between Static Forces and Dynamic Excitation

Try these first

1. 1.

   Define static forces.

   Hint

   Think about loads that do not change rapidly with time.

2. 2.

   List one example of dynamic excitation.

   Hint

   Consider natural disasters that change quickly.

3. 3.

   What type of forces are associated with inertia effects?

   • Static forces
   • Dynamic excitation
   • Both

   Hint

   Remember the characteristics of both types of forces.

4. 4.

   Static forces do not vary rapidly with time. True or False?

   • True
   • False

   Hint

   Think about how these forces act on structures.

5. 5.

   Consider a structure designed only for static loads. Discuss the potential issues it may face during a high-intensity earthquake scenario.

   Hint

   Think about the difference between expecting a calm day and facing a storm.

6. 6.

   If a building experiences a frequency of ground motion that matches its natural frequency, what might occur? How could this be mitigated?

   Hint

   Reflect on how certain systems can help absorb energy.