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Because steel is stronger than wood.
But I'm not sure steel is stronger than metal, but steel is a metal and a pretty tough one.
Wiki User
∙ 12y ago
Wiki User
∙ 12y agobecause it is very strong and cheap, however it does corrode (rust)
Wiki User
∙ 15y agoIron is used in such structures because it has a high amount of delocalized electrons. The more delocalized electrons the stronger and harder the metal(visa versa).
Wiki User
∙ 12y agoIron is a very strong and durable metal and thus allows us to construct bridges.
Wiki User
∙ 13y agoIt is used because it is very strong under tension unlike concrete or stone, and during the industrial revolution became viable financially.
Wiki User
∙ 11y agoIron is used to build bridges because it has high tensile strength i.e. it is very strong and can take much weight on itself
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What are cable stayed bridges made of?
The primary building materials in cable-stayed bridges are steel, which is used in the cables and also as the reinforcing material in the concrete, which is the other primary building material.
How is geometry used in building bridges?
I dont know i need the same answer buddy!
Who invented the truss bridge?
Caleb and Thomas Pratt invented the truss bridge in 1844. Some of the materials that have been used in truss bridges are timber, steel, reinforced concrete, and iron.
What do you call the type of engineer that designs bridges?
civil engineers, structural engineers, and architects are the main bridge builders.
How was the first metal-frame skyscraper constructed?
the 12-story Home Insurance Building, in the mid-1880s. Jenney used an iron framework for the first six floors to carry the weight of the building into the foundation. He used steel beams for the top six floors.
Which building material that is used today was invented to build large buildings and bridges in ancient Rome?
The Romans used the arch to build large buildings and bridges.
What iron is used to?
iron is used to make bridges (i think)
Why zinc is electroplated on iron used to make bridges?
why bridges are not electrplated
What what was the problem with the iron bridges?
The problem with iron bridges was that the material was not as reliable as carbon steel, so it was replaced starting in the late 1800s and was completely unavailable for bridge building by the early 1900s. Bridges in the late 1700s were made of cast iron, but, by the early 1800s, cast iron gave way to wrought iron.
Why is iron used to construct bridges and houses?
Iron is not used to build houses, but iron is used in other things because it is strong.
What is iron use to make?
iron is used to make bridges (i think)
What is used to make steel bridges?
iron ore
What were stone bridges used for?
Stone bridges were built to get over rivers etc, before iron or steel was used.
What is the strongest material used for building bridges?
Steel
Which is better an angle iron or a pipe?
Heavier Angle iron is often used as a structural element in building and bridges, while lighter angle iron is used for a variety of supports such as an adjustable bed frame. Pound for pound angle is more rigid than standard pipe.
What is Primary ore of iron used to produce iron for steel for automobiles tools and bridges?
hemalite
What is primary ore of iron used to produce iron from steel for automobiles tools and bridges?
hemalite
