The name of the I -beam is its roots back in antiquity. The name of this type of metal roll is based on the Latin word translated as a bull, since this beam has the form of the letter P on the transverse cut. Thus, this steel element is not only one of the most ancient, but is currently quite popular.
Due to its design, the beam itself allows you to solve a number of problems that occur during the construction of a wide variety of metal structures. The form of the beam itself contributes to the fact that it is initially easier in weight compared to solid -lit elements similar in shape, but at the same time the double -barrel beam inside is a hollow, like a pipe. This not only can significantly reduce the load of the entire structure as a whole, but also on its individual elements in particular. At the same time, the operational qualities of the beams remain at a fairly high level. After all, it is not only a reliable element of the structure, but also can withstand significant loads.
Therefore, the choice of one or another version of the beam of the double -barrel depends primarily on the place of its specific use. In this case, the steel circle has common features with a rally beam. The most common way to use this beam is to use it when arranging ceilings in various buildings, as well as as supports in the construction of bridges or mines. In addition, it is often possible to observe the presence of rally beams during the construction of structures of various kinds of spans or suspended routes. Often impaired beams are used in the field of automotive industry, as well as in other areas of transport production.
The classification of the double -rotary beam is based on the type of steel that was used in its production. Thus, hot beams are distinguished, which are produced from carbon steel, as well as from low alloy, which are also called special. In addition to the difference in composition, there are differences in the form of the beam itself. Depending on this, beams with faces are distinguished, which are located parallel to each other or at an angle. The faces themselves are called regiments. Shelves can be both broad -heating and column and normal. Distances between the shelves can differ significantly, as well as the length of the beam itself. In this case, there are both standard sizes and options made by individual sizes.