Bridges - Engineering

cypriotcamelUrban and Civil

Nov 29, 2013 (3 years and 6 months ago)

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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


Compression



a
pushing or squeezing
force


Tension



a pulling or
stretching force



Demonstration


Make groups of two…

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 Bridges


Works by

Compression

Arch Bridges


Where have you seen these bridges?

Cold Spring Arch Bridge, Santa Barbara, CA

Marsh Rainbow Arch, Riverton, KS

Pont du Gard, Nimes, France

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 Bridges


Works by
Tension

AND
Compression

Cable
-
Stayed Bridges


Where have you seen these bridges?

Zakim Bridge, Boston, MA

Sunshine Skyway Bridge, Tampa, FL

Sundial Bridge, Redding, CA

Suspension Bridges


Similar to Cable
-
Stayed


Different construction method

Suspension Bridges


Works by
Tension

and
Compression

Suspension Bridges


Where have you seen these bridges?

Golden Gate Bridge, San Francisco, CA

Brooklyn Bridge, Brooklyn, NY

Verrazano
-
Narrows Bridge, New York, NY

Other Types

Truss

Southern Pacific Railroad Bridge,
Tempe, AZ

Cantilever

Firth of Forth
-
Forth Rail Bridge,
Edinburgh, Scotland

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


Structural


bridges, roads, buildings


Geotechnical


foundations, excavations,
and tunnels


Transportation


roads, traffic control,
airports


Environmental


human impact on the
environment

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

Questions?