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# Bridges ∑ F= 0 acloutier copyright 2011 Conceptual Physics

## on Feb 08, 2011

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Conceptual Physics class project Spring 2011

Conceptual Physics class project Spring 2011
Lab construction of bridges, showing vectors, tension and force applied to real structures.

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## Bridges ∑ F= 0 acloutier copyright 2011 Conceptual PhysicsPresentation Transcript

• BRIDGES ∑ F = 0Sum of Forces equal zeroConceptual Physics Lab acloutier 2011 copyright
Suspension, beam, truss & arch
• Suspension - bridge having roadways suspended from cables that are anchored at either end and usually supported at intervals by towers(Milau Viaduct tallest bridge in world built 2004)
• Singapore unique double helix design completed in 2010
• London Bridge is not falling down Over the River Thames ~ 1825
• Sao Paulo “X” Bridge
• Beam Bridges
• Chesapeake Bay Beam span bridge
• Truss uses triangles Forces = compression & tensionGolden Gate
• Styles of bridges to consider
• Arch Bridge thank the Roman’s for this intelligent design
• Roman Arch Force Vectors
• RUBRIC:1. Draw a design off the top of your head. Make a plan/ pick a partner or chose to work alone2. Materials are plastic straws, limited glue and paper clips3. Tools are scissors, a glue gun with only two glue sticks4. Illustrate the completed bridge showing force/ tension /vectors gravity, weight N (newtons), and where ∑F=0 is the sum5. Do the physics vector and include the magnitude and distance for one specific section of the bridge.(Use graph paper if you like)6. Include a top and side view of the bridge7. Three days 90 minute effort each, any additional materials you will need to supply*Document process at the end of each of the three days
• The End
Sandwich High School Conceptual Physics 2011 acloutier