2020, Vol. 7, No. 2. - go to content...

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DOI: 10.15862/04SATS220 (https://doi.org/10.15862/04SATS220)

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Andreev V.L., Ovchinnikov I.G. Improvement of a bridge connection node with embankment by applying curved approach slabs. Russian Journal of Transport Engineering. 2020; 7(2). Available at: https://t-s.today/PDF/04SATS220.pdf (in Russian). DOI: 10.15862/04SATS220

Improvement of a bridge connection node with embankment by applying curved approach slabs

Andreev Vladislav Leonidovich
Industrial university of Tyumen, Tyumen, Russia
E-mail: andreev.vladislav.97@mail.ru

Ovchinnikov Igor Georgievich
Industrial university of Tyumen, Tyumen, Russia
Perm national research polytechnic university, Perm, Russia
E-mail: bridgesar@mail.ru

Abstract. The article is devoted to improving the bridge connection node with embankment by application of curved approach slabs.

The most important request by arranging of bridge connection with embankment is to ensure soft entry of transport from the approach embankment to the bridge for the entire period of operation. However, overtime on the road sections of bridge connection with embankment appear soil collapsing, cracks and birdbaths in the carpet. This problem is partially solved by the installation of reinforced-concrete approach slabs buried in the connection zone between the abutment and the approach embankment.

Despite the use of straight approach slabs in the bridge-connection node with embankment, the formation of bumps of grade profile is observed, they reduce road safety, worsen the technical condition of vehicles, cause discomfort to the driver and passengers.

From the structural and technological point of view, request by arranging of bridge connection by curved approach slabs higher functional quality can be achieved. Due to the soft passage of bridge connection node, it is possible to reduce the negative shock-dynamic effects, which will increase the durability of the connection node and approach road pavement.

The article presents several possible to use bridge connection node structures through the use of curved approach slabs: concave, convex and S-shaped. A comparative analysis of bridge-connection structural versions will reveal the most effective construct that can ensure soft passage of the bridge connection node with approach embankment.

Keywords: approach slabs; bridge-connection node; approach embankment; bridge/bridgework; reinforced-concrete slabs; soft passage; curved approach slab

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