Why Do Buildings Fall During Earthquakes?
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Why Do Buildings Fall During Earthquakes?
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Why do buildings fall in earthquakes?
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Why do buildings fall in earthquakes?
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What Happens to Buildings During Earthquakes?
What Happens to Buildings During Earthquakes?
2020年12月6日
caltech.edu
Why do some buildings fall in earthquakes? All buildings have a natural period, or resonance, which is the number of seconds it takes for the building to naturally vibrate back and forth. The ground also has a specific resonant frequency. Hard bedrock has higher frequencies softer sediments. If the period of ground motion matches the natural resonance of a building, it will undergo the largest oscillations possible and suffer the greatest damage. https://www.iris.edu/hq/inclass/animation/buildin
0:07
Why do some buildings fall in earthquakes? All buildings have a natural period, or resonance, which is the number of seconds it takes for the building to naturally vibrate back and forth. The ground also has a specific resonant frequency. Hard bedrock has higher frequencies softer sediments. If the period of ground motion matches the natural resonance of a building, it will undergo the largest oscillations possible and suffer the greatest damage. https://www.iris.edu/hq/inclass/animation/buildin
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