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5 cards from this section. Quick, good the night before a test.
What is a response spectrum?
Think about what it indicates for structural safety.
What does SDOF stand for?
Consider how many degrees of freedom it represents.
What is the purpose of a response spectrum?
Focus on what information the graph provides.
True or False: Design spectra are used to ensure compliance with seismic code.
Think about what design spectra represent.
A building is designed using a response spectrum with a damping ratio of 5%. Calculate the expected spectral acceleration for a natural period of 1 second if PGA = 0.5g.
Use the formula S_a = PGA * normalization factor for damping.
Given two structures with different damping ratios (2%, 5%), determine which one would likely experience greater deformations under the same seismic event. Justify your answer using concepts discussed.
Refer back to the relationship between damping and structural response.
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