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Bridge Vocab

Bridge Vocab. Bridge Stresses. Every bridge ever constructed had the same 4 stresses to overcome. Tensile Stress- Forces that try to stretch material and pull it apart. Compression- Forces that try to push or squeeze material together.

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Bridge Vocab

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  1. Bridge Vocab

  2. Bridge Stresses • Every bridge ever constructed had the same 4 stresses to overcome. • Tensile Stress- Forces that try to stretch material and pull it apart. • Compression- Forces that try to push or squeeze material together. • Shear Stress- Forces that try to make materials tear and slide by each other. • Torsion Stress- Forces that try to twist and bend material.

  3. Bridge Materials • Pier- A strong support that helps a bridge with stability. • Caisson- A Tube used for bridge foundations when built over water. • Bedrock- A strong foundation that support bridge piers. • Keystone- A critical part of an arch bridge that keeps it together.

  4. Bridge Types • Beam Bridges • Girder- Box-girder or I girder laid between two piers. • Cantilever- Built so that middle beam is supported by two outside beams. • Truss- Uses a series of triangular shapes to distribute weight across the beam to piers.

  5. Bridge Types • Arch Bridges • Abutment- Where the bridge meets the land, keeps the arch from pushing out and down • Aqueduct- A man-made channel that carries water built by the Romans to shield the water from sun and contaminations.

  6. Bridge Types • Suspension Bridges • Suspension Bridge- A bridge deck that is supported by cables hung from towers • Cable Stayed Bridge- Single towers are used to suspend the road surface.

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