Iron+&+Steel+Chatlog

Reynaldo Troconis: Hi nathaly Reynaldo Troconis: how are you? nathalybaez: fine thanks! and you? Reynaldo Troconis: good good Reynaldo Troconis: did you do the reading of iron and steel? nathalybaez: yes, i did!! nathalybaez: What do you think about using these materials in architecture? Reynaldo Troconis: I think it is an important evolution, because they let us construct stronger and tallers structures Reynaldo Troconis: and what dou you think? nathalybaez: I agree with you, steel and iron also gives new ways to design a building nathalybaez: believe it has some disadvantages? Reynaldo Troconis: well, yes.. cast iron is week in tension and steel loses strength in extremely high temperature Reynaldo Troconis: and what was the used for metals in architecture before 1800? nathalybaez: they were used for bonding masonry nathalybaez: for tension members (chains strengthening domes, tie rods across arches) nathalybaez: for roofing, doors, windows and decoration nathalybaez: do you know That cast iron was the first metal that could be substituted for traditional structural materials? Reynaldo Troconis: Yes, and it quickly encouraged architectural adaptations, first as columns and arches and afterward in skeletal structures Reynaldo Troconis: thanks to its ability to bear loads and to be produced in an endless variety of forms, in addition to its resistance to fire and corrosion Reynaldo Troconis: but what about with steel? nathalybaez: it is more uniformly strong, elastic, and workable, and its high resistance in all stresses can be closely calculated. Reynaldo Troconis: like tension, compression and bending nathalybaez: yeah right! Reynaldo Troconis: then, the development of welding nathalybaez: wait a second.. what is welding Reynaldo Troconis: Oh! Sorry, welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing coalescence. nathalybaez:ok thaks.. now you can continue J Reynlado Troconis: ok.. so, the development of welding in the 20th century made it possible to produced fused joints with less labor and material nathalybaez: of course! And that makes a rigid, continuous structure in which the joint is as firm as the member and which distributes stresses between beams and columns Reynaldo Troconis: exactly Reynaldo Troconis: That is a fundamental change in architectural technique Reynaldo Troconis: but steel must be protected with a surface covering against corrosion nathalybaez: yes, but alloys such as stainless steel have developed for exposed surfaces nathalybaez: Aluminum and other light metal alloys have come to be favored for exterior construction because of their weather resistance Reynaldo Troconis: waoo.. what a great construction material! nathalybaez: Yes, it is Reynaldo Troconis: so, thank you for this educative conversation Nathaly nathalybaez: no thank you Reynaldo, you have been very helpful in this theme Reynaldo Troconis: hopefully enough to get 5 xD Reynaldo Troconis: See you Nathaly jajaja good bye!