2019, Vol. 6, No. 4. - go to content...

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DOI: 10.15862/06SATS419 (https://doi.org/10.15862/06SATS419)

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Bystrov V.A., Kozak N.V., Yaroshutin D.A. Problems of real dynamically loading mode and structure fatigue mode determination in composite steel-concrete city and road bridges. Russian Journal of Transport Engineering. 2019; 6(4). Available at: https://t-s.today/PDF/06SATS419.pdf (in Russian). DOI: 10.15862/06SATS419

Problems of real dynamically loading mode and structure fatigue mode determination in composite steel-concrete city and road bridges

Bystrov Vladimir Apolinaryevich
Saint Petersburg state university of architecture and civil engineering, Saint Petersburg, Russia
E-mail: bystrov.admt@gmail.com

Kozak Nikolai Viktorovich
Saint Petersburg state university of architecture and civil engineering, Saint Petersburg, Russia
E-mail: kozak.spbgasu@gmail.com

Yaroshutin Dmitry Andreevich
Saint Petersburg state university of architecture and civil engineering, Saint Petersburg, Russia
E-mail: yaroshutin@gmail.com

Abstract. The article presents results of the analysis of experimental-theoretical researches and dynamic tests of the composite steel-concrete superstructures of bridges in St. Petersburg, the Leningrad Region and the North-Western region of the Russian Federation. The authors analyzed the theoretical foundations of the coefficient of reduction of the calculated resistances γw, the real spectra of the forced vibrations of the most loaded elements, and made recommendations on the need to take into account the parameters that affect the actual dynamic loading and durability of bridge structures.

Keywords: steel-concrete; dynamics; fluctuations; stresses; fatigue; defects; spectra; damage; durability

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