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Bridges
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∙ 11y ago
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What was used before bridges were invented?
Boats.
What were stone bridges used for?
Stone bridges were built to get over rivers etc, before iron or steel was used.
How did people cross before the tower bridge of London was built?
There were (and still are) other bridges that can be used.
Where are some bridges used why?
some bridges are used to get to the other side of something
What does the sign watch for ice on bridges mean?
Sometimes, due to the road mixture used, bridges can be icy while the rest of the road is not.
Why zinc is electroplated on iron used to make bridges?
why bridges are not electrplated
What kind of shapes are used in Truss bridges?
The geometric shape used in truss bridges is the triangle.
What are the most common materials used in bridges?
The most common materials used in bridge building are generally steel or concrete for larger bridges, and stone or wood for smaller bridges.
What are pontoon bridges used for?
They are often built by military engineers to cross rivers where there are no bridges.
What materials are used in modern bridges?
Steel is the most common, especially for suspension bridges. Concrete is used for lower bridges (and where little shifting will occur) because it is more resistant to the elements.
Are bridges still used?
yes, they are used , that is why they are built.
What is a cable used for in bridges?
Steel
