Iron+&+Steel

__ Iron & Steel __

Characteristics

__IRON__

__STEEL__
 * __Iron ingredients:__ Iron with lots of carbon
 * __Strengths:__ Molds to any shape, strong in compression
 * __Weaknesses__: Weaker than steel in tension, breaks without warning
 * __Applications__: Arch bridges, cannons, historic domes


 * __Ingredients:__ Iron with a touch of carbon
 * __Strengths:__ One of strongest materials used in construction, strong in compression and tension
 * __Weaknesses:__ Rusts, loses strength in extremely high temperatures
 * __Applications:__ Cables in suspension bridges, trusses, beams and columns in skyscrapers, roller coasters



Corragated Iron

What corrugated iron is?

Corrugated iron is a building material composed of sheets of hot-dip galvanised mild steel cold-rolled to have a linear corrugated pattern in them. The corrugations increase the bending strength of the sheet in the direction parallel to the corrugations, but not across them

Characteristics

It proved to be light, strong, corrosion-resistant, easily transported, cheap, durable, and is available everywhere.

Uses through history

It was used in simple constructions, like houses, in roofs and walls. Also, was used in farms, windmills and other structure because of its characteristics, is strong and cheap making it perfect for not-luxurious houses.

Reply to the podcast

Iron & Steel comes to the construction industry to revolutionize the way we have conceived the design of structures. Now we now that we can create weather resistant, bigger ans stronger structures, improving the quality of the design as itself. Also steel can be easily modify to take the shape we wanted, so the materials  are no longer an obstacle for the design.

Thanks for the information Grace

Post Reading Activities

I think that old iron cast is not used anymore because of esthetics stuff. It was a very resistant material but not necessarily an ornamental one. When you design a building you want an strong and resistant structure without sacrifice the beauty. This is why we have introduce modern steel, because it was an strong and resistant material, as well as iron, but it was more esthetic than old cast iron. All the improves we made in materials and structure are always in order to make our architecture more spectacular and we have to think that in a few years the materials we use nowadays will be obsolete and replaced for new ones.
 * Listen to this recording on Iron by John H. Lienhard (you will also find the script)
 * On your wiki, write your opinion about this quotation from the recording: “the old cast iron buildings died out. I'm not really sure whether the new skyscrapers killed them, or the new esthetics”



Paragraph

I want a house with an spherical framework of steel welding all the plates together, one wall with a surface veneer of bricks and slabs all over the floor.