Abstract. This article is devoted to fireproof processing of steel structures. The main task is to consider different types of sections of rod elements and to choose the most effective section for a steel column from the point of view of fire protection. For the solution of this task the steel columns with various cross sections working in identical entry conditions were considered. All necessary calculations for all types of sections were carried out. Results of calculations were presented in the summary table according to which the comparative analysis was made. At the end of work the conclusion that the compound section from four equal corners is the most effective from the point of view of fire protection.

This article presents the accuracy of foundation calculation of slab-use SCAD model using finite rigidity linkages. Two design schemes contain foundation on pile is considered in plane elastic problem. The analysis of obtained stress values in the foundation allows to make a conclusion on the calculation accuracy in pile models using finite rigidity linkages and the feasibility of such a simplification of the calculation of pile foundations.

Standardization and unification of elements, constructions and design solutions is one of the main ways to reduce the complexity and cost of the construction.Standard designs of truss coatings with a 10% slope for 24, 30, 36 meters spans were developed in this article for different load combinations.Stress calculation and truss elements dimensioning was made with the SCAD Office software complex. Then the relationship between the thickness of the section, span and load was defined, and the limits of various sizes of the accepted bottom chord connecting block.Designed series of truss structures with a 10% slope and 24, 30, 36 meters spans covers a range of line loads from 1,3 t/m to 3.3 t/m. In comparison with the truss structures series Molodechno it has a lower metal consumption by reducing the cross section of the upper chords due to vertical elements adding. Transportation of a 12-meter section falls under the category of oversized transportation.

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The article deals with the problem of increasing the efficiency of recruitment of applicants. A formal description of the task of maximally filling budget places and maximizing the average score of applicants entering these places, as well as the decision support software, allows to solve this problem. The recommendations on the use of the presented software are given.