Practice Construction Of Response Spectra (32.3.3) - Response of Structures to Earthquake

Practice: Construction of Response Spectra

Lesson 32.3.3Response of Structures to Earthquake

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9 questions

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6 sample questions

Question 1.
Define the term 'Response Spectrum'.
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Think about what a response spectrum plots on a graph.
Question 2.
What does SDOF stand for?
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Consider how many degrees of freedom a simple model has.
3Question 3.
What does the response spectrum plot?
- Spectral values against time
- Structural responses against natural period
- Damping ratios against seismic forces
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Consider what we analyze when examining structural behavior.
4Question 4.
True or False: Damping ratio has no effect on the response spectrum.
- True
- False
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Think about how energy dissipation affects the structure's motion.
Question 5.
Consider a building with a natural period of 0.5 seconds subjected to a given seismic event. Calculate its spectral response if the spectral acceleration for 0.5 seconds is known to be 1.2g. Determine peak force experienced.
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Ensure you have the mass of the building to complete the calculation.
Question 6.
If a structure has varying damping ratios of 5% and 20%, how would these ratios affect the spectral acceleration? Provide a scenario considering real structural dimensions.
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Refer to the generated spectra curves and compare their peak response values.

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