Practice Importance In Earthquake Engineering (14.9) - Natural Frequencies

Practice: Importance in Earthquake Engineering

Lesson 14.9Natural Frequencies

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9 questions

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6 sample questions

Question 1.
What is natural frequency?
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Think about vibrations without external forces.
Question 2.
What can happen if an earthquake's frequency matches a structure's natural frequency?
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Recall what we discussed about amplified vibrations.
3Question 3.
What is resonance?
- When a structure vibrates freely
- Matching frequency causing amplification
- Absorption of vibrations
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What happens during an earthquake when frequencies align?
4Question 4.
Dynamic dampers are used to:
- True
- False
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Think of products that help stabilize during movement.
Question 5.
Given a building's natural frequency and an earthquake frequency, analyze the risks if they align closely. What measures could be taken to ensure safety?
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Consider how you can change the properties of the structure to keep it safe.
Question 6.
Evaluate the impact of local soil conditions on the natural frequency of buildings. Provide an example of a historic earthquake where this was a factor.
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What specific characteristics of soils will affect how buildings respond to seismic forces?

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