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3 cards from this section. Quick, good the night before a test.
What does PGA stand for?
Think about how much the ground shakes.
What does PGD measure?
Consider how far the ground has shifted.
What does PGA represent in seismography?
Consider what parameter influences building safety.
Is PGV related to potential structural damage?
Recall the relationship between velocity and damage potential.
Given a seismogram shows PGA of 1.0g, PGV of 20 cm/s, and PGD of 5 cm, assess the potential structural integrity risks for a building designed to withstand 0.6g.
Compare the design specifications with the measured values.
A new building site records PGV exceeding 30 cm/s on multiple occasions. Discuss possible engineering adjustments or actions to be taken.
Consider the implications of ground motion on material fatigue.
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