12.7 - Response to Earthquake Ground Motion
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Practice Questions
Test your understanding with targeted questions
What does a two degree of freedom system represent?
💡 Hint: Think about how many places forces can act independently.
What is ground acceleration?
💡 Hint: Consider how quick the ground is moving during an earthquake.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the equation governing response to earthquake ground motion in a 2-DOF system?
💡 Hint: Remember the components that represent mass, force, and response.
True or False: The modal participation factor indicates that each mode contributes to the system's overall response.
💡 Hint: Think about how each oscillation mode influences the total behavior.
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Challenge Problems
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Given a 2-DOF system with masses and coefficients identified, derive the equations of motion and compute the modal participation factors.
💡 Hint: Start by establishing your mass and stiffness matrices.
If an earthquake causes a specific ground motion, calculate the total displacement response of a 2-DOF structure using modal superposition.
💡 Hint: Think about how the contributions of different modes combine.
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