6.5.1 - Concept of Base Excitation
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Practice Questions
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What does base excitation refer to in earthquake engineering?
💡 Hint: Think about how the ground's movement affects the structure directly.
What is the formula for absolute displacement in the context of base excitation?
💡 Hint: It combines two types of displacement.
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Interactive Quizzes
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What is base excitation?
💡 Hint: Consider the external forces acting on the structure.
True or False: Absolute displacement is calculated as the sum of relative displacement and ground displacement.
💡 Hint: Think about how motion is added together.
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Challenge Problems
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Analyze a scenario where the ground displacement during an earthquake reaches 1 meter and the relative displacement of the structure is recorded at 0.7 meters. Calculate the absolute displacement, and discuss how this might impact the structural integrity.
💡 Hint: Ensure you apply the formula for absolute displacement correctly.
Consider a building designed without accounting for base excitation effects. Discuss potential real-world implications during a significant seismic event and suggest measures that could be taken to mitigate such risks.
💡 Hint: Reflect on how engineers might adapt designs in response to these challenges.
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