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Mathematical Packages Application in The Process of Energy-Saving Technology Development of Metal Structures with Rod Elements Production

The article further developed the model for determining and choosing rational parameters of welding modes, including welding current, for intersecting round rods used in reinforced concrete building structures. It is shown that the solution to present problem requires computerized support, in particular, using the mathematical package Mathcad. Based on computer modeling, experimental studies, as well as analysis of the process of heating the rods, it was found that the current density in the central part of the contact depends only on the length of the contact between the welded rods, as well as on the length of the contact between the electrodes and the rods. A technique has been developed to determine the compression force between the electrodes in the center of the welding contact, taking into account the required minimum welding current of the crossing round rods. The studies carried out made it possible not only analytically, but by computer modeling (Mathcad and Simufact Welding), to justify the rational parameters of the board temperatures of the materials being welded, in particular, round rods in the welding zone and to ensure the reliability and durability of building reinforced concrete structures.