32.1.3 - Elastic and Inelastic Spectra
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Practice Questions
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What does Spectral Acceleration (Sa) represent?
💡 Hint: Think about how structures respond to shaking.
Name one characteristic of Single Degree of Freedom (SDOF) systems.
💡 Hint: SDOF systems focus on one motion type.
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Interactive Quizzes
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What does a response spectrum show?
💡 Hint: Focus on the purpose of the spectrum.
True or False: Inelastic spectra assume that structures remain unchanged after a seismic event.
💡 Hint: Consider whether any damage can occur.
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Challenge Problems
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A 10-story building has been designed with an elastic spectrum in mind. During an earthquake, peak spectral acceleration recorded is 0.3g. If the building shifts to an inelastic response and undergoes damage, describe the implications for future design improvements.
💡 Hint: Think about how damage would affect structural integrity.
An engineer needs to evaluate whether a building should be retrofitted based on its inelastic spectrum response. The building shows a displacement limit of 0.05m but has experienced greater during an event. What actions should the engineer take?
💡 Hint: Focus on how the response spectrum informs design decisions.
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