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Bridges

Bridges. Prof. Anthony Cioffi , P.E. Professor/Chairman New York City College of Technology/CUNY. How are Bridges Used?. Walkways Highways/Roads Railways Pipelines Connecting Lands Crossing Rivers Stadiums Roofs. Types of Bridges. Arch Truss Cantilever Cable-Stayed Suspension

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Bridges

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  1. Bridges Prof. Anthony Cioffi, P.E. Professor/Chairman New York City College of Technology/CUNY

  2. How are Bridges Used? • Walkways • Highways/Roads • Railways • Pipelines • Connecting Lands • Crossing Rivers • Stadiums • Roofs

  3. Types of Bridges • Arch • Truss • Cantilever • Cable-Stayed • Suspension • Beam • Moveable

  4. What Makes a Bridge Stay Up? • Forces – 2 Types 1st - Compression > Pushing or Squeezing Force 2nd - Tension > Pulling or Stretching Force

  5. Arch Bridges • Keystone – the wedge-shaped stone of an arch that locks its parts together • Abutments – the structures that support the ends of the bridge

  6. Arch Bridges • How Does it Work ? “Compression”

  7. Arch Bridges • Where have you seen these bridges? Bayonne Bridge – N.J. Sydney Harbor Bridge Hoover Dam Bridge Apollo Bridge - Slovakia

  8. Steel Arch Bridge • Where have you seen these bridges? High Bridge(officially, the Aqueduct Bridge) Bronx, N.Y.

  9. Hell Gate Arch Bridge, New York, Connecting Railroad Bridge from Queens

  10. Cable-Stayed Bridges • Piers – Supports the Towers • Towers – Support the Cables • Cables – Thick Steel Ropes from which the decking is suspended • Decking – Supports the Roadway Tower Cable Deck Pier

  11. Cable-Stayed Bridges • How does it Work? Tension & Compression

  12. Cable-Stayed Bridges • Where have you seen these bridges? Abdoun Bridge – Amman, Jordan Puente de la Unida – Mexico Octavio Frias de Oliveira Bridge São Paulo - Brazil.

  13. Zakim Bridge, Boston, MA

  14. Sunshine Skyway Bridge, Tampa, FL

  15. Suspension Bridges • Similar to Cable-Stayed > Uses Cables for Support Tower Cable Suspender Cable Deck Pier Abutment

  16. Suspension Bridge Tension & Compression • How does it Work?

  17. Suspension Bridges • Where have you seen these bridges? Golden Gate Bridge – San Francisco Akashi Kaikyo Bridge - Japan Chesapeake Bay Bridge Virginia

  18. Brooklyn Bridge, Brooklyn, NY

  19. Verrazano-Narrows Bridge, New York City

  20. Truss Bridge Support (Abutment)

  21. Truss Bridges • How does Work? Tension& Compression

  22. Truss Bridges • Where have you seen these bridges? Francis Scott Key Bridge - Maryland, USA Betsy Ross Bridge – Philadelphia, PA

  23. Under Truss Bridge

  24. Truss Connections NY-79 Bridge Broome County, New York Warren

  25. Cantilever Bridge • Where have you seen these bridges? Firth of Forth-Forth Rail Bridge Edinburgh, Scotland Bluewater Bridge -Port Huron Michigan

  26. Pierre Pflimlin Bridge - France 59th Street Bridge – N.Y.C.

  27. Beam Bridge • Where have you seen these bridges? Chesapeake Bay Bridge-Tunnel

  28. Moveable Bridges Bascule Bridge Woodrow Wilson Bridge-Virginia Swing Bridge London Bridge Lift Bridge

  29. Questions?

  30. Build a Bridge Open the Secret Envelope!

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