15.8. Experimental Determination of Mode Shapes

Try these first

1. 1.

   What is ambient vibration testing?

   Hint

   Think about natural influences affecting structures.

2. 2.

   What is the purpose of impact hammer testing?

   Hint

   Consider how you create sound with a drum.

3. 3.

   What method uses natural environmental vibrations to assess structures?

   • Shake Table Testing
   • Impact Hammer Testing
   • Ambient Vibration Testing

   Hint

   Consider what 'ambient' means concerning testing.

4. 4.

   True or False: Shake table testing provides a direct simulation of an earthquake's effects on a structure.

   • True
   • False

   Hint

   Think about the purpose of simulating an earthquake.

5. 5.

   Describe a scenario where ambient vibration testing might be preferred over shake table testing. Justify your answer.

   Hint

   Consider the advantages of non-invasive methods.

6. 6.

   Propose a comprehensive plan to assess a high-rise building's seismic response using all three testing methods. Include steps for each method.

   Hint

   Think about how different methods complement each other in data collection.