PETER ALEXIADIS
Concepts and Research of Spans
The Cable-Stayed Bridge: A cable-stayed bridge is a bridge that consists of one or more
columns. These columns have cables that are attached to them to support the
deck of the bridge. This bridge is one of the best bridges to build because it
is very stable in the wind and is less expensive to build then some of the
other bridges. The cables are extremely strong and very flexible. Only a few
cables can hold up the bridge, but their flexibility makes them weak to the
forces of weather such as wind.
The Arch Bridge: An
arch bridge works by transferring the weight of its loads across it arch. An
Arch bridge is always under compression. The force of compression is pushed
outward along the curve and toward its abutments The greater the degree of
curvature is the greater the amount of tension becomes The compression is the
force downward from the road of walkway and the tension is the force outward
from the bottom of the arch.
The Cantilever Bridge: A
cantilever bridge is a bridge that is built using cantilevers. A cantilever is
a structure that projects horizontally into space and is supported on only one
end. When the cantilever is spanning a large area they use trusses to carry the
weight. The trusses are usually made out of steel. They also use columns every
so often when they want to keep the span going. The columns could make from
either structural steel or concrete.