The article presents a program of comprehensive construction and technical expertise of the structures of an industrial building. The features of the construction and technical expertise of the structures of the agricultural warehouse of mineral fertilizers are described. An algorithm of the sequence of actions for the technical expertise of the structures of the object is developed. Measures have been developed to repair and restore the working condition of damaged structures

Keywords: construction and technical expertise, defects, bearing capacity, structural repair, property management

The results of the investigation of the structure of the concrete, modified by the additive expanding, on the combined aggregate, which is a natural crushed stone mixed with crushed concrete, are presented. The study of the properties and regularities of the formation of the concrete structure is simultaneously a method of controlling their production. Regularities and reasons for the change (decrease) in the quality indices of concretes with a combined aggregate are established. Investigation and normalization of the properties of concretes on combined aggregates will allow using them along with traditional structural concrete.

Keywords: recycling, combined filler, contact area, structure, defects, durability

The calculation of the stress-strain state of the digital carrier panel antenna array mounted on the ship's match. Calculations are performed in the static case, when different types of pitching at a constant angular speed and variable angular speed. It is shown that the effect of roll has a significant influence on the stress-strain state of the panel, and its account at a variable angular velocity is a prerequisite for carrying out these calculations

Keywords: "carrier board, the pitching of the ship, the angular velocity, angular acceleration, stress, strain, statistics "