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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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Presentation on theme: "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."— Presentation transcript:

1 San Francisco, dead 2,000 homeless 6.9 Richter scale Bam, Iran, ,000 dead 70,000 homeless 6.7 Richter scale.

2 Design a Building to withstand Earthquakes

3 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.

4 Two ways a building can withstand an Earthquake

5 Questions to Think about How will you stop the building from collapsing? How Trusses Help Understanding Height-base ratio

6 Extension Activity


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