Quality control the technical condition of the building structures by randomization

Reinforced concrete structures are currently the most common construction and have a long history of application. In addition to loads, structures are exposed to external aggressive environments. As a result of this, structures are often damaged. For repair planning, diagnostics and assessment of the technical condition of structures are necessary. The regulatory literature does not contain data on the required sample size and designation of zones and places of control of structures. Known studies are devoted mainly to the substantiation of the methods of instrumental control of the parameters of building structures. The building structures are divided into two types: same type structures and unique ones which are characterized by a large surface area. Therefore, various approaches to diagnosing the technical condition of such structures are necessary. We have developed a methodology for control of structures using the randomization method. The technique allows, with a given degree of confidence, to reasonably designate the sample size of structures, a place or a control zone. This allows you to replace the complete control selective and significantly reduce the amount of testing.