Current issues of improving the pricing system in construction in the transition period

Introduction. In the world practice, promotion of structural steel for execution of new effective projects for building and installation construction is linked with innovative introduction of new materials and technologies. This process is specified by the regulatory requirements for reliability of building facilities including indices of load capacity, serviceability and durability. At the same time, the priority is to prevent corrosion damages based on the analysis of the design consideration and assurance of quality of corrosion protection measures. However, for today the possibilities of the concept of limit states as the main instrument for eliminating uncertainty of corrosion protectability parameters are not fully unveiled. The aim of the study is to justify the technical and economic parameters of corrosion protectability in the course of structural steel designing taking into account the required level of structural steel reliability. Materials and methods. The regulatory requirements for means and methods of corrosion protection of structural steel are analyzed on the basis of limit state design principles. Considered are the features of the process approach for affirming compliance of corrosion protectability indices of structural steel. Established are the conditions that allow carrying out the static check and mathematical modeling of design criteria for load capacity, serviceability and durability. Determined are the nomenclature, indices and methods of offline and online monitoring of the constitutive parameters of corrosion state of structural elements. Results. The regulations in force based on the interval estimation of indices of corrosion resistance and life of protective coatings describe conditions of protective means designing as a state or case linked with corrosion hazard. Corrosion protectability defines conditions for designing the corrosion protection measures based on the specified design criteria for serviceability and durability. At that, design decisions of primary and secondary protection are justified by means of computational or computational-measuring verification of compliance of quality and reliability indices of protection means Conclusions. Design characteristics of corrosion resistance and durability obtained by offline and online monitoring of the constitutive parameters of corrosion state of structural elements provide engineering of corrosion protection quality. Management of quality and reliability indices based on corrosion protectability signs lays the groundwork for robust designing measures for the long-term technical and economic protection of building facilities