SYSTEM ANALYSIS OF APPLICABILITY OF LATTICE METAL STRUCTURES IN THE NATIONAL ECONOMY

Lattice-type metal structures are the most popular type of construction in many areas of the national economy, as they have low material consumption, high strength characteristics and reliability. The disadvantage that has to be faced at the manufacturing stage is the need for all lines passing through the centers of gravity of the elements forming this assembly to intersect at one point of the assembly. On the other hand, welded structural elements are a stress concentrator, which causes them to break down as a result of cracking. Thirdly, the dismantling of the transportation structure is complicated when replacing failed elements. The study objective. To carry out a system analysis of the applicability of lattice-type metal structures in various sectors of the national economy to substantiate the feasibility of introducing innovative technologies in their manufacture to increase their reliability. The task to which the paper is devoted. The study of the applicability of lattice-type metal structures in various sectors of the national economy. Research methods are based on a system analysis of the issue based on the materials of scientific and technical literature. The novelty of the work. The fields of application of lattice-type metal structures are identified, which can be classified according to the degree of responsibility depending on their purpose and perceived load. Study results. The essence of the research is to substantiate the feasibility of using innovative technologies to improve existing lattice-type metal structures. Conclusions. The versatility of using lattice-type metal structures makes it possible to identify the degree of their responsibility and, on this basis, assess the possibility of further introducing new technologies for their manufacture.