Technical Diagnostics and Non-Destructive Testing, 2020, №04



2020 №04 (05)

DOI of Article 10.37434/tdnk2020.04.06

2020 №04 (07)

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Technical Diagnostics and Non-Destructive Testing #4, 2020, pp. 40-44

Monitoring the stressed state of bridge span structure during mounting by sliding method

S.M. Minakov¹, V.M. Uchanin²

¹NTUU «Igor Sikorsky Kyiv Polytechnic Institute». 37 Prosp. Peremohy, 03056, Kyiv, Ukraine. E-mail: mail@kpi.ua
²G.V. Karpenko Physico-Mechanical Institute of NASU. 5 Naukova str., 79060, Lviv, Ukraine. E-mail: vuchanin@gmail.com

A procedure is proposed for monitoring mechanical stresses in the walls of the span structure of bridges from ferromagnetic steels during their mounting by the sliding method with application of magnetoanisotropic method. In order to select the measurement points, the span structure was considered as a cantilever double support beam, for which the curves of the transverse force and bending moments were plotted, in particular. The procedure was realized during construction of a bridge across the Dnipro (Kyiv), the results of which confirmed its effectiveness. The developed procedure can be modified for monitoring the span structures of bridges from ferromagnetic steels during their operation.
Keywords: magnetoanisotropic method, ferromagnetic steel, monitoring, mechanical stresses, bridge, span structure

Received: 02.09.2020

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