TECHNICAL PECULIARITIES OF ARTIFICIAL CONSTRUCTIONS FROM PREFABRICATED METAL CORRUGATED STRUCTURES WITH AN OPEN LOWER SECTION
At present, the problem of small bridges, both in world practice and in almost all constituent entities of the Russian Federation, is the complexity of the composition of work; moreover, not every enterprise "gets down to business" because of its low profitability. In the process of operation contractors are experiencing great difficulties in maintaining the bridge, working on large bridges and leaving the small ones aside. Hence, it is necessary to introduce such technologies that would allow building bridges "without maintenance". One of the modern alternatives is the use of metal corrugated structures (mostly galvanized steel). In this paper the issue of technical peculiarities of artificial constructions from prefabricated metal corrugated structures with an open lower section has been studied. The advantages of structures over traditional bridges of reinforced concrete beams of small length have beenidentified. Brief technology of the device, main types of systems, operational issues, design advantages, an outlineof quality control are presented. Artificial metal corrugation structures have showed good results in all parameters. Advantages of such constructions to their competitors are their durability, ease of installation, ease of transportation, low maintenance costs, erection in hard-to-reach areas, rapid construction of the structure, economic characteristics. The variety of profileoptions makes it possible to find aesthetic and architectural advantages in such constructions, since arch bridges always attracted people. Consequently, contractor organizations should take into account prefabricated metal corrugated structures as one of the possible options for construction.