5.5. Idealization of Structures as SDOF Systems

Try these first

1. 1.

   What is a Single-Degree-of-Freedom (SDOF) system?

   Hint

   Think of how many different ways a structure can move.

2. 2.

   Name one condition when a structure can be idealized as SDOF.

   Hint

   Consider the building's height and complexity.

3. 3.

   Which of the following is NOT an effective parameter in SDOF systems?

   • Effective Mass
   • Effective Stiffness
   • Total Weight

   Hint

   Focus on parameters affecting dynamic performance.

4. 4.

   True or False: A structure must be irregular to be modeled as an SDOF system.

   • True
   • False

   Hint

   Think about the nature of the structures we discussed.

5. 5.

   Consider a 6-story building where the mass is concentrated on the top floor. Discuss how you would evaluate if it can be modeled as an SDOF system.

   Hint

   Reflect on the importance of mass distribution and its impact on modes.

6. 6.

   How would you adjust your idealization process for a building with significant torsional irregularity?

   Hint

   Consider what happens when mass isn't symmetrically distributed.