frequency, oscillation, flange connection, calculation, bolts.

The analysis of the natural vibration frequency of a large-span truss with flanged connections is given. The calculation of the flange connection with various cases of exclusion of bolts from the connection operation is performed. Analysis of the calculation results showed that the occurrence of damage and defects in the building structures in local areas, the value of which significantly reduces the overall rigidity of the frame, practically does not affect the dynamic characteristics of the frame.

Rytova Tatyana Georgievna

e-mail: tanusha2884@mail.ru, Candidate of Technical Sciences, Associate Professor, Moscow State University of Civil Engineering, Moscow, Russia,

Maximova Lyudmila Anatolyevna

e-mail: maximova_ng@mail.ru, Doctor of Physics and Mathematics, Professor, Russian University of Transport, Moscow, Russia, I.N. Ulyanov Chuvash State University, Cheboksary, Russia,

Nikolaeva Anastasia Georgievna

e-mail: nag_sf@mail.ru, Senior Lecturer, I.N. Ulyanov Chuvash State University, Cheboksary,

Russia,

Makarova Tatyana Mikhailovna

e-mail: tany96@list.ru, Master’s Student, I.N. Ulyanov Chuvash State University,

Pfanenshtil Nadezhda Georgievna

e-mail: nfedorova83@mail.ru, Candidate of Historical Sciences, Associate Professor, Kazan Branch of the Russian State University of Justice, Kazan, Russia