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3 cards from this section. Quick, good the night before a test.
What does PGA stand for?
It refers to the maximum acceleration during an earthquake.
Is the design acceleration spectrum anchored at PGA?
Consider what 'anchor' means in context.
What does PGA represent?
Consider what the 'P' stands for.
True or False: The design acceleration spectrum decreases with increasing period for long-period structures.
Relate this to how buildings behave during different types of seismic forces.
If a building must be designed in Zone IV with a PGA of 0.24g, how would a structural engineer approach the design compared to one in Zone II, which has 0.10g?
Think about the difference in numerical values for each zone and how that impacts structural integrity.
The amplification factor for a short-period structure is 1.5. If its base design needs to withstand a PGA of 0.24g, what would be the effective design PGA considered?
Consider how multiplication affects scale when factoring in risks during an earthquake.
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