Corrosion. Unprotected from the action of moisture, and sometimes (even worse) the atmosphere, polluted by corrosive gas, steel corrodes (oxidizes), which gradually leads to its complete destruction. Under adverse conditions this can happen in two to three years. Although aluminum alloys have a much greater resistance to corrosion under adverse conditions, they also corrode. Altavista takes a slightly different approach. Good resistance to corrosion of cast iron. Increase corrosion resistance of metal structures is achieved by inserting a special steel alloying elements, the periodic surface structures with protective films (paints, varnishes, etc.), as well as rational choice constructive forms of elements (without cracks and cavities, which can accumulate moisture and dust), easy to clean and protect.
A small fire. We were at a temperature of 200 C begins to decrease the modulus of elasticity, and at t = 600 C steel completely into the plastic state. Aluminium alloys transform into the plastic state even at t = zoo C. Therefore, the metal structure of buildings, dangerous to fire on (storage of flammable or flammable materials, residential and public buildings), shall be protected by fire-resistant lining (concrete, ceramics, special coatings, etc.). In the design of steel structures should be considered The following basic requirements.
Operating conditions. Satisfaction given the design of operating conditions is a basic requirement for the designer. It basically defines the system, constructive form of construction and material selection for him. Savings metal. The requirement of saving metal is determined by its great demand in all industries (machinery, transport, etc.) and relatively high value. Tranportabelnost. In connection with the manufacture of metal structures, usually in the factories, followed by transportation to the site in the project must be able to transport their entire or in parts (elements of departure) with the use of the vehicles. Manufacturability. Construction should be designed to meet the requirements of production technology and assembly with focus on the most modern and efficient processing methods that provide the maximum reduction of complexity. Speed installation. The design shall be appropriate for the assembly in its lowest terms, taking into account existing mounting hardware.
A small fire. We were at a temperature of 200 C begins to decrease the modulus of elasticity, and at t = 600 C steel completely into the plastic state. Aluminium alloys transform into the plastic state even at t = zoo C. Therefore, the metal structure of buildings, dangerous to fire on (storage of flammable or flammable materials, residential and public buildings), shall be protected by fire-resistant lining (concrete, ceramics, special coatings, etc.). In the design of steel structures should be considered The following basic requirements.
Operating conditions. Satisfaction given the design of operating conditions is a basic requirement for the designer. It basically defines the system, constructive form of construction and material selection for him. Savings metal. The requirement of saving metal is determined by its great demand in all industries (machinery, transport, etc.) and relatively high value. Tranportabelnost. In connection with the manufacture of metal structures, usually in the factories, followed by transportation to the site in the project must be able to transport their entire or in parts (elements of departure) with the use of the vehicles. Manufacturability. Construction should be designed to meet the requirements of production technology and assembly with focus on the most modern and efficient processing methods that provide the maximum reduction of complexity. Speed installation. The design shall be appropriate for the assembly in its lowest terms, taking into account existing mounting hardware.
Great insight into steel buildings.
I agree there are disadvantages, but when you look at the list of advantages that they can have, its hard to argue against them in many cases.
Thanks for the great article
Posted by: Steelbuildingsguide | 12/18/2011 at 08:00 AM