Bridges

What is a bridge?

A Bridge is a technological tool that aim to solve the problem of crossing an obstacle. The better the bridge is, the less attention the user will need to pay it  ^__^

Some benefits  of bridges are related to their function. Therefore bridges help to transport supplies of food in short time; reduce distances that improve the sharing of ideas and streghten international relationships.

Types of Bridges

There are different types of bridges, among them are: 

1) Beam Bridges

2) Cantilever Bridges

3) Arch Bridges

4) Suspention Bridges

5) Cable Stay Bridges

1) A Beam Bridge was the first bridge we found in nature. It is simple and it has two main elements: Beam and Pier. Usually this bridges are made of concrete, wood, stone and steel. The main disadvantage of this type of bridges are that they are not built to support shipping pass ( ships can not pass below them!) and also, they sag and hog causing them to crumple.

Beam bridges have a lot of ways to look deep and dont weight too much; In the XIXth century we developed the "Truss", it is a way to distribute the load of the bridge.