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  • Earthquakes are a powerful natural events that occur rarely, however engineers need to design bridges to withstand earthquakes by making them more flexible and rigid in the right places to be able to withstand these powerful events.
  • In 1989, the San Francisco - Oakland Bay Bridge collapsed during an earthquake that resulted in significant improvements to the bridge after the collapse. These improvements included replacing existing rivets with stronger heat-treated ones and adding diagonal box beams to provide greater stability when the bridge sways side to side.

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urlhttps://www.youtube.com/watch?v=viE_yQNFvhM