Iron+and+Steel

CHAT:

Maria gabriela Medina: hi guysana_teresapr: Hi Maria Gabriela Franklin Loaiza gerig: Helloana_teresapr: hello Franklin Maria gabriela Medina: so tell me do you guys read about iron and steel as material for construction?ana_teresapr: Yes, it was very interestingMaria gabriela Medina: hahaha yesMaria gabriela Medina: could you tell me What are the advantages of iron and steel over stone and brick? Franklin Loaiza gerig: Yes, I did, It´s unbelievable all the advantages this materials bring with themana_teresapr: Yes, I Could.ana_teresapr: Cast iron was used in brige buildings and is resistent to fire and corrosion. And steel is more uniformly strong, elastic, workable and it is high resistance in all stresses It is ability to bear loads and to be produced in an endless variety of formsMaria gabriela Medina: great ana_teresapr: Franklin Loaiza gerig: I read there was a change in construction in the 20th century because of these materials, do you know something about it and about their importance in the moment?ana_teresapr: yes, The evolution of steel frame construction in the 20th century entirely changed the concept of the wall and the support and made it possible to produced fused joints with less labor and material Maria gabriela Medina: good Maria gabriela Medina: well I read about some characteristics of steel like that it provide far stronger and taller structures with less expenditure of material and can produce greater unsupported spans over openings and interior or exterior spaces. is more uniformly strong, elastic, and workable, and its high resistance in all stresses (tension, compression and bending) can be closely calculated.Maria gabriela Medina: in australia corrugated steel was commonly used in the houses construction because of its cost and easy transportationana_teresapr: Nice answerana_teresapr: Maria gabriela Medina: but as long as steel have all this great characterictics it also have some problems. Steel must be protected against corrosion by surface covering, but alloys such as stainless steel have developed for exposed surfaces. Aluminum and other light metal alloys have come to be favored for exterior construction because of their weather resistance. Franklin Loaiza gerig: Niceana_teresapr: GoodFranklin Loaiza gerig: This are excellent material but what made them even better to work with was the creation of weldingsMaria gabriela Medina: oh really?Franklin Loaiza gerig: it consists in joining together the pieces of steel by melting them and creates a stronger and rigid structure which joints are as firm as the member and wich distributes the stresses between beams and columnsana_teresapr: I didnt know it.But now I know jejeMaria gabriela Medina: hahahahaMaria gabriela Medina: thank you franklin Franklin Loaiza gerig: there are different shapes mades of steel developed to create stronger structures, some of them are: angles, I beams and U shaped channelsFranklin Loaiza gerig: It´s amazing how usefull iron and steel could beFranklin Loaiza gerig: I believe they are the best materials everMaria gabriela Medina: i have one more question Maria gabriela Medina: Are aluminum and stainless steel heavy metal alloysMaria gabriela Medina: ?ana_teresapr: ??Franklin Loaiza gerig: no, they are notMaria gabriela Medina: yes I though thatMaria gabriela Medina: tooFranklin Loaiza gerig: they are light metal alloysana_teresapr: me too.ana_teresapr: I agree with youana_teresapr: Wellana_teresapr: ....ana_teresapr: guysFranklin Loaiza gerig: they have come to be favored for exterior construction because of their weather resistanceMaria gabriela Medina: exactlyFranklin Loaiza gerig: It was very productive to have had this chat with you, I've learn a lotMaria gabriela Medina: well guys I really leran about steel and iron than you for sharing this chat with meMaria gabriela Medina: i agree with you franklinMaria gabriela Medina: I´ll see you in next chat byeeana_teresapr: guyss have a good day!!ana_teresapr: Franklin Loaiza gerig: Good bye I hope we can chat together soonMaria gabriela Medina: Happy birthday ana!! Franklin Loaiza gerig: btw happy birthday ana!!Franklin Loaiza gerig: nice day1ana_teresapr: Thanksss ana_teresapr: hahahaha