Iron+and+Steel

=Iron and Steel = How are iron and steel used in architecture and urban planning? What do you think are the advantages and disadvantages of each of these materials?

Architecture and urban planning most of the time use iron and steel as a constructive material, specially in area of the structures. As we can see the develope of these materials really changed and let developed architecture and urban planning, because of its characteristics. They can support stress forces as different as the previous constructive material for the time, like brick, stone and wood. These materials have some advantages as we said the support stress forces, they are more light and as a constructive materials they let the project erect in less time than usual, also they have some, they are weak in compression forces and to the corrosion.

Write your opinion about: “The old cast iron buildings died out. I'm not really sure whether the new skyscrapers killed them, or the new esthetics"...

Nowadays we can see that iron was replaced for steel, because of its advantages and in my opinion its development led architecture goes forward. I think that in the past buildings started been of iron, because this material is more easy to handle and less expensive than brick or stone, but with the past of the time we realized that steel is even better and it has more longevity.

Get in groups of 3 in a chat and discuss: • What are the advantages of iron and steel over stone and brick? • What is the importance of steel and iron after the 20th. Century. • What are the characteristics of steel? • What are the disadvantages of steel and what solutions have been found? • What is welding? What is its importance? Its characteristics. • What shapes are formed with steel? • Are aluminum and stainless steel heavy metal alloys o Save and post your chatlog with conclusions to the forum in Moodle