Design a Building to withstand Earthquakes

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• San Francisco, 1989
• 67 dead
• 2,000 homeless
• 6.9 Richter scale

• Bam, Iran, 2003
• 30,000 dead
• 70,000 homeless
• 6.7 Richter scale.

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Design a Building to withstand Earthquakes
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An Earthquake Proof Building

• The Transamerica Pyramid in San Francisco, built
  to withstand earthquakes, swayed more than 1 foot
  but was not damaged in the 1989 Loma Prieta,
  California, earthquake.
• It is also built on very solid ground that is
  less likely to fracture during an earthquake.

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Two ways a building can withstand an Earthquake
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Questions to Think about

• How will you stop the building from collapsing?
• How Trusses Help
• Understanding
• Height-base ratio

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Extension Activity

• http//www.mysciencebox.org/shaketable