6.12.3. Translational vs Rotational SDOF

Try these first

1. 1.

   What is a translational SDOF system primarily used for?

   Hint

   Think about structures that sway.

2. 2.

   What type of motion does a rotational SDOF system model?

   Hint

   Consider towers or poles.

3. 3.

   What is a key difference between translational and rotational SDOF systems?

   • Translational involves linear motion
   • while rotational involves angular displacement.
   • Both are identical in application.
   • Translational systems model overturning effects.

   Hint

   Think about how each moves.

4. 4.

   True or False: Rotational SDOF systems are irrelevant for typical building analysis.

   • True
   • False

   Hint

   Consider what types of structures require rotational analysis.

5. 5.

   Imagine a high-rise building subject to lateral seismic forces. Discuss how a translational SDOF system could be implemented to analyze its reactions.

   Hint

   Consider how the structure reacts as a unit.

6. 6.

   A slender communications tower is swaying under strong wind conditions. Explain how the rotational SDOF system helps predict its stability and potential for failure.

   Hint

   Think about how rotation affects the balance.