ESTIMATION OF THE TECHNICAL CONDITION AND STRENGTHENING OF METAL STRUCTURES OF THE MOBILE COMMUNICATION MASH

Annotation. At present, expensive mobile equipment is being used. Support structures (towers, masts) for mobile communication equipment are often operated without supervision, have significant wear, are not able to fully meet their operational purpose. The constructions "are not suitable for normal operation" - according to the terminology [2, 5]. Therefore, it becomes necessary to diagnose the technical state of such structures with the performance of repair and reinforcement. The technique for assessing the technical condition and diagnosis of steel structures is regulated [2]. The problems of developing methods and methods for strengthening metal structures are discussed in the works of LN. Lashchenko, G.A. Shapiro, M.M. Sakhnovsky, M.R. Belsky and others. Practical recommendations for calculation and design for reinforcing steel structures are given in [5, 7, 9]. The above standards consider the work of individual elements of simple cross-section forms. The conditions of loading and boundary conditions are considered without detailed analysis of the work of the reinforced elements under load and changes in their design schemes. Purpose. Development of general approaches to diagnostics of technical condition and design of reinforcement of supporting structures for mobile communication equipment. Methodology. The application of numerical methods implemented in computing systems [6] for modeling the joint spatial operation of structures, the geometric nonlinearity of the operation of individual elements, taking into account defects and damages. Findings. The technical condition of the structural scheme of a steel mast, installed on a reinforced concrete column, is analyzed. The results and practical recommendations on the survey and strengthening of the mast of mobile communication are presented. Originality. It is proposed to reduce the scope of work on instrumental survey when diagnosing the mast of mobile communication by creating complex (calculation-experimental) approaches to the development of works [3, 11]. Practical value. Recommendations for diagnosing the technical condition and strengthening the masts of mobile communications.