24 Jul 2017, 3:18am

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Prefabricated Buildings Made Of Light Metal (LMC )

The most progressive way, building construction, borrowed from North American and European countries, is the erection of prefabricated buildings made of light metal (LMC). To date, the Most developed countries in the world of light metal structures built more than 70% of the buildings. This technology is gaining popularity all in Russia. Features pre-fabricated buildings made of light metal Buildings made of light metal structures are easy to build, speed installation, open plan spaces, high durability and the cost of the finished building. Speed of construction prefabricated buildings of metal is 10-12 times higher compared with the brick or block buildings, and 4-5 times as compared with buildings of timber.

Buildings can be constructed from the lmc in any climatic conditions outside Depending on the season. Savings in construction of buildings from lmc ranges from 30 to 40% compared with traditional building materials (concrete, bricks, etc.). Modern technologies allow to manufacture items prefabricated buildings with high accuracy, significantly reducing the period of employment, ensure high reliability of the building. The use of modern corrosion resistant coatings can effectively protect the metal from corrosion and significantly increase the lifetime of the building. To provide the required fire resistance of buildings from light metal structures are widely used flame retardants in which provides the required Fire carcass construction of prefabricated buildings on the basis of light metal structures consist of flat bearing frames, connected by a system of links and runs. Rama, in turn, are composed of columns and girders.

The most common are the pillars of solid section – hot-rolled H sections, welded dvutav both constant and variable cross-Beams with corrugated wall, welded gnutozamknutye metalloprofili. Application of cross-column design reduces weight, but increases its value. The choice of cut-type crossbar in the first place depends on the passage of the building. In buildings that span up to 18m widely used hot-rolled and welded I-beams. With increasing spans becomes profitable use of trusses, lattice beam structures. Special mention should be used as supporting structures of I-beams with a corrugated wall, so-called gofrobalok. has an optimal ratio of strength and their own weight. In such beams at the height of the cross section up to 1,5 m wall thickness of only 3.5 mm, which significantly reduces the weight bearing design. As the frame structures used method of sheet assembly (eg trapezoidal sheet – insulation – trapezoidal sheet) or ready-light steel thin-walling – three-layer sandwich panels with mineral wool, polystyrene or polyurethane insulation. Through the use of light and thin-walling roofing reduces the load on the metal frame and foundation of a building that allows use shallow foundations burial; significantly reduces the cost of construction and allows you to work in a short time with minimal use of lifting devices. Elements of pre-fabricated buildings are attached interconnected by bolting or welding, which avoids the so-called "wet process" in the construction of buildings and carry out construction at any time of year. Building on bolted joints are mobile, they can dismantled and transported to another place. continuation "

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