Our world is growing rapidly. The fact that yesterday there was actual science fiction writers in the pages of science fiction, today become commonplace and we can not imagine how people could live without these earlier innovations. Probably everyone has heard about in history classes shock Komsomol construction projects, where new businesses and the city were built decades by extreme human suffering, and even at the cost of people's lives. It would seem that New technologies may be in construction? People engaged in this business for thousands of years and all there was simple: stone, brick, timber, clay, sand, cement … All it had to be connected to each other and the result is ready building, suitable for living or production.
Even the breakthrough of the last century in the construction industry involving the use of concrete, could not change the main quality of construction – namely, time erection of structures. Of course, compared to the decades of construction of the Pyramids in Egypt, the timing is much reduced, but still at a building went years. That time of construction, as well as low level of the Unification of construction were the main obstacle to progress in the construction industry. And just at the beginning of this century occurred in this industry is truly unique, revolutionary, technological breakthrough. And it happened thanks to technology, construction of buildings bystovozvodimyh (BVZ). Construction technology of prefabricated buildings is to use as a totally new building materials and use has become traditional, in their organic connection to get the best result. There are several types of structures are: – pre-fabricated modular buildings, when structures are composed of several separate modules – block-containers, which makes it possible to transport such a building and quickly collect them in a new place.
Usually, modules have no internal supports, which significantly increases the area of these buildings. In addition, the modules provide an opportunity to redesign the building to meet specific requirements. Such buildings are not distinguished by special architectural delights, their main purpose is to solve specific practical problems – pre-fabricated modular buildings are built directly on the site of pre-made on the manufacturer's design elements, such buildings are erected for longer than modular, they can not reschedule the course, but they have a much lower cost compared to the technology block-container – frame-panel prefabricated buildings – the hallmark of this type is that the foundation of the building is a metal skeleton. The frame of the building is a flat steel frame, rigidly fixed / hinged on concrete foundations and unfastening each other struts and metal purlin made up of special steel, more likely to use I-beams. Then this skeleton is sheathed sandwich panels made of sheet steel with plastic coating, as the roof decking or use metal roofing. Using the technology of prefabricated buildings can be constructed, industrial buildings, residential buildings, hangars, warehouses, shopping centers, sports and exhibition complexes, service stations and special-purpose facilities, office buildings and storage for agricultural purposes, shop for food production, and pig barns and much more.