Technical and economic indicators of elements of hybrid structural coatings based on steel fiber concrete

The article presents information on spatial hybrid structural coatings using steel fiber reinforced concrete and a methodology for calculating their technical and economic indicators depending on the dimensions on the plan, temporary loads, and the materials used. It also provides brief information on known variants of structural coatings, the feasibility of using BIM technology and the Revit program for assessing the technical and economic performance of structural elements using calculation tables developed for this purpose. Steel fiber concrete systems built on the basis of pyramidal elements occupy a special place in the field of modern building structures. The classic configuration involves the location of the pyramid apexes upwards with the obligatory inclusion of stiffening slabs in the overall structure. This solution demonstrates high adaptability to various planning solutions. In parallel, the concept of composite coatings is developing, where the pyramidal elements have the opposite direction of apexes. The structural scheme provides for the use of reinforced concrete foundations and steel tubular elements in tension zones. A characteristic feature is the diagonal distribution of metal elements in the lower chord. The functional advantages of the system lie in the rational use of building materials. The staggered placement of elements opens up opportunities for the effective integration of translucent structures, which positively impacts the indoor microclimate. Analytical studies confirm the superiority of the hybrid system in terms of material consumption. However, a significant factor is noted: the overall height is twice as high as that of traditional regular structures.