2.4+Designing+Structures+to+Resist+Forces+and+Maintain+Stability

=Humans have created ways to make strong structures while saving on the amount of materials used. Below are some forms that are used during construction to create strong structures that resist forces. What are some other ways we can make structures strong? This information will be VERY useful to you in your upcoming labs!=

Using Strong Shapes:
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Using Columns:
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Strong Trusses:
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Building with Arches:
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story of events.
1. The bridge structure experiences structural stress. 2. A freight train loaded with iron ore passes over the bridge. 3. The bridge collapses. 4. The beams of the rail bridge bend slowly. 5. The rail bridge carries 10 trains a day over the valley. 6. The beams of the rail bridge give way. 7. The bridge is experiencing structural fatigue. 8. A rail bridge was built here 30 years ago. 9. The bridge is experiencing structural failure.

The Three Little Pigs Reinforce their homes to withstand forces: media type="youtube" key="cg-vV1lYlP0" height="315" width="420"

Designing a Safe Roller Coaster: []

Designs to resist forces from earthquake: media type="youtube" key="HlI_H_0y9Kc" height="315" width="420"

=Material Stress, Fatigue and Failure:= = = Do materials get tired?

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The Paper Chair Challenge:

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