Bridge
Designs Arch Bridges
The arch is fabricated to distribute the force point and
distributed loads. The arch is designed to center all of
the bridges weight and load to one central point. This
technique also holds the bridge together. Even though it
is not a bridge the St. Louis Arch is an example of this
principal.
Cantilever Bridge
These bridges are composed of three sections. Two arms
that extend from opposite sides of the area being
spanned, and a connecting form in the middle. The weight
is supported by the piers and foundations.
Beam Bridges
Are usually designed from prefabricated beams. They come
in a variety of sizes and specs. Beam Bridges are simple
in design but are not useful for long spans. They are
used for walkways and small traffic bridges.
Suspension Bridges
Suspension bridges are suspended from cables that are
draped between high towers and secured to onshore anchors
that counteract the pull of the cable. The Golden Gate
Bridge in San Francisco is one of the longest suspension
bridges.
Bridges.Retrieved October 10, 1998 from
the World Wide
Web:http://www.hydro-mobile.com/english/products/bridges.htm
NISEE.National Information Services for
Earthquake Engineering.University of California
Berkley(1997)W.G.Goden.Retrieved October 10, 1998 from
the World Wide
Web:http://www.eerc.berkeley.edu/leonhardt/html/steel_suspension_bridges.html
Nova.online.Super Bridge.Dave
Bowen.Retrieved October 13, 1998 from the World Wide
Web:http://www.pbs.org/wgbh/nova/bridge/meetarch.html
Cantilever Bridges.Retrieved October
13, 1998 from the World Wide
Web:http://education.leeds.ac.uk/~edu/technology/yorkshire/cantile.htm
|