32.8.2 - Importance Factor (I) and Response Reduction Factor (R)
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Practice Questions
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What does the Importance Factor (I) indicate?
💡 Hint: Think about why certain buildings need to be designed stronger than others.
What does the Response Reduction Factor (R) account for?
💡 Hint: Consider how a building can manage forces during an earthquake.
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Interactive Quizzes
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What is the Importance Factor (I)?
💡 Hint: Think of buildings that are crucial during emergencies.
True or False: A higher Response Reduction Factor (R) permits lower design seismic forces.
💡 Hint: Consider how energy management plays a role in design forces.
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Challenge Problems
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Given two buildings, A and B. Building A has an Importance Factor (I) of 1.2 and a Response Reduction Factor (R) of 4. Building B has an I of 1.5 and R of 3. Compare the expected seismic force if both have the same weight.
💡 Hint: Use the design force formula considering both I and R.
Discuss the pros and cons of having a high Response Reduction Factor (R). Consider its impact on safety versus cost savings.
💡 Hint: Think about the balance between economy and structural integrity.
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