16.1. Introduction

Try these first

1. 1.

   What does MDOF stand for?

   Hint

   Think about how many movements a structure can have.

2. 2.

   Name one benefit of using MDOF models.

   Hint

   Consider why real-world structures can't just be simplified.

3. 3.

   What is an advantage of MDOF models over SDOF models?

   • They consider only one motion
   • They provide a detailed interaction
   • They require less computation

   Hint

   Think about the complexity of structures.

4. 4.

   True or False: MDOF models are not useful for earthquake engineering.

   • True
   • False

   Hint

   Reflect on the role of buildings during an earthquake.

5. 5.

   Discuss how neglecting the porosity of materials and incorporating only idealized mass can affect the performance analysis of MDOF structures during dynamic events.

   Hint

   Consider how realistic models incorporate various material characteristics.

6. 6.

   A multi-story building with 8 floors is analyzed using an MDOF model. If each floor has its own mass and stiffness, explain how you would set up the modeling equations to account for each degree of freedom.

   Hint

   Think about the relationships each component has with the others.