4.3. Key Differences Between Static and Dynamic Forces

Try these first

1. 1.

   Define static forces.

   Hint

   Think of loads that don't change much, like building weight.

2. 2.

   What characterizes dynamic excitation?

   Hint

   Consider forces experienced during events like earthquakes.

3. 3.

   What type of loads do static forces represent?

   • Constant loads
   • Rapidly changing loads
   • Random loads

   Hint

   Remember the definition of static forces.

4. 4.

   True or False: Inertial effects are significant in static loading conditions.

   • True
   • False

   Hint

   Think about how these forces act over time.

5. 5.

   Given a structure designed only for static loads, analyze the risks associated with an unexpected dynamic event, such as an earthquake.

   Hint

   Consider how the load characteristics differ.

6. 6.

   How would you adjust the design calculations for a structure expected to face both live loads and dynamic forces from an earthquake?

   Hint

   Think about how risks are mitigated through analysis.