About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Rishat G. Gainetdinov, candidate of technical sciences, senior lecturer, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0000-0003-3068-3482 Linur R. Gimranov, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0000-0003-1728-1825 Marat T. Sibgatullin, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0000-0002-5254-9826 Askar T. Velmiskin, main engineer, LLC “Stroy Group Service”, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it . ORCID: 0009-0005-2901-6596 Karina I. Ziyarova, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it , ORCID: 0009-0005-9308-4200 |
| Title of the article | Results of the study of the bearing capacity of a non-flange assembly of a steel polygonal arch |
| Abstract. | The known solutions of polygonal arch designs have some disadvantages, which are expressed in significant material consumption due to the use of flange elements in the nodes, also these connections are more labor-intensive when assembling unified elements. Therefore, it is relevant to develop a new polygonal arch assembly and study its load-bearing capacity. The purpose of the work is to determine the actual load-bearing capacity of a new bolted connection of unified elements of a polygonal arch. In accordance with this goal, the following tasks were solved: a prototype of a new steel polygonal arch assembly and its testing methodology were developed; a full-scale test of the prototype was carried out with the determination of the actual stress level using strain gauges; a numerical modeling of the unit was conducted and the forces in the holes of the bolted connection were analytically determined; conclusions were made about the use of the unit in arched structures and further improvement of the design solution. Results. For the polygonal arch of a certain configuration and size, the authors determined the sections of the unified elements, designed the unit where bolts and their number were selected. These obtained data became the basis for creating a prototype unit. A full-scale test of a prototype was conducted with recording of the stresses in the elements. The values of stress distributions were obtained in the numerical model, as well as from strain gauge data during tests. The maximum load value according to the test results was 60.14 kN at the moment of stability loss of the element. Conclusions. The use of the proposed design solution in construction projects will reduce the material consumption of buildings by 10-20% compared to classical solutions due to the use of a non-flange assembly in arches. |
| Keywords. | new steel polygonal arch assembly, bolted connection, test method, bearing capacity, unified element, I-beam, paired channel |
| For citations: | Gainetdinov R.G., Gimranov L.R., Sibgatullin M.T., Velmiskin A.T., Ziyarova K.I. Results of the study of the bearing capacity of a non-flange assembly of a steel polygonal arch // News of KSUAE, 2025, № 2(72), p. 77-86, DOI: 10.48612/NewsKSUAE/72.7, EDN: ECSTEE |
