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Bridges. Brian Brenner Aaron Levine Cindy Tran. Some Uses of Bridges. Walkways Highways/Roads Railways Pipelines Connecting lands Crossing rivers and canyons. Types of Bridges. Arch Truss Cantilever Cable-Stayed Suspension. What makes a bridge stay up?. Forces

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Presentation Transcript
bridges

Bridges

Brian Brenner

Aaron Levine

Cindy Tran

some uses of bridges
Some Uses of Bridges
  • Walkways
  • Highways/Roads
  • Railways
  • Pipelines
  • Connecting lands
  • Crossing rivers and canyons
types of bridges
Types of Bridges
  • Arch
  • Truss
  • Cantilever
  • Cable-Stayed
  • Suspension
what makes a bridge stay up
What makes a bridge stay up?
  • Forces
    • Compression – a pushing or squeezing force
    • Tension – a pulling or stretching force
  • Demonstration
    • Make groups of two…
arch bridges
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
arch bridges6
Arch Bridges
  • Works by

Compression

arch bridges7
Arch Bridges
  • Where have you seen these bridges?
cable stayed bridges
Cable-Stayed Bridges
  • Piers – the vertical supporting structures
  • Cables – thick steel ropes from which the decking is suspended
  • Decking – the supported roadway on a bridge
cable stayed bridges12
Cable-Stayed Bridges
  • Works by Tension AND Compression
cable stayed bridges13
Cable-Stayed Bridges
  • Where have you seen these bridges?
suspension bridges
Suspension Bridges
  • Similar to Cable-Stayed
  • Different construction method
suspension bridges18
Suspension Bridges
  • Works by Tension and Compression
suspension bridges19
Suspension Bridges
  • Where have you seen these bridges?
other types
Other Types

Truss

Southern Pacific Railroad Bridge, Tempe, AZ

Cantilever

Firth of Forth-Forth Rail Bridge, Edinburgh, Scotland

engineering
Engineering
  • Engineering – the use of math and science to solve real world problems (like crossing a river)
  • Civil engineering – designing and building bridges, roadways, tunnels, buildings, dams, etc.

Civil Engineer

branches of civil engineering
Branches of Civil Engineering
  • Structural – bridges, roads, buildings
  • Geotechnical – foundations, excavations, and tunnels
  • Transportation – roads, traffic control, airports
  • Environmental – human impact on the environment
other types of engineering
Other Types of Engineering
  • Mechanical – design machines and moving parts
  • Electrical – design electrical equipment
  • Chemical – design processes for mixing chemicals
  • Computer – design computer hardware and software
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