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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Undalov A.M. – post-graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Nizhny Novgorod State University of Architecture and Civil Engineering The organization address: 603950, Russia, Nizhny Novgorod, Il'inskaya st., 65
Title of the articleInvestigation of the stress-strain state of radial beam dome with a membrane roof
Abstract.In this paper, a comparison of theoretical and experimental research results stress-strain state tapered radial beam dome with triangular elements shells. The study model carried out in three stages. In the first phase was determined the stress-strain state of the elements of the dome numerical method using software package «MSC Nastran». In the second phase voltage in the elements of the dome were measured experimentally using a strain gauge station ZET 017-T8 using strain gages 72 and 2PKB 10.100V TU 2506-1382-78, with a base of 10 mm, 100 ohm, and deformations of points - deflectometer system Maximov 6-PAO. At the final third stage comparison of the results determining the stress-strain state element. The difference of the theoretical and experimental values of stress and strain was not more than 10-15 %, due to the compliance of the compounds, the initial geometric imperfections, the sensitivity of the instrument. At points with a minimum value of the voltage differences appear between the calculated and experimental values in the range of 20-75 %. This is due to the limited sensitivity of the strain gauge station and a certain scale interval instruments Conclusions about the correct operation of the computing system, the reliability of the experimental results and the correctness of the hypotheses and assumptions to reflect adequately the real work construction.
Keywords.dome, membrane, experimental study, the stress-strain state.
For citations:Undalov A.M. Investigation of the stress-strain state of radial beam dome with a membrane roof // Izvestiya KGASU. 2015. №3(33) P.70-77.

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