27.4. Time-History Records

Try these first

1. 1.

   What does a time-history record plot?

   Hint

   Think about what seismograms measure.

2. 2.

   Name one component of the data provided by time-history records.

   Hint

   Consider the different measures of motion.

3. 3.

   What does a time-history record display?

   • Pressure vs Time
   • Temperature vs Time
   • Ground Motion vs Time

   Hint

   Focus on the types of data seismograms provide.

4. 4.

   True or False: Displacement data is not part of time-history records.

   • True
   • False

   Hint

   Recall the three measurements included in time histories.

5. 5.

   Analyze a given time-history record indicating an acceleration peak of 2.5 m/s². Discuss how this might influence structural design decisions.

   Hint

   Consider how peak acceleration influences design.

6. 6.

   Given the velocity data indicates a sudden drop during a seismic event, what could this signify about potential structural failure?

   Hint

   Think about signs of structural instability.