Railway development

Another phase of renovation of two adjacent railway bridges could start

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Photo: illustration (magyarepitok.hu) and GYSEV Zrt.
On the Sopron-Agfalva railway line, Győr-Sopron-Ebenfurti Vasút Zrt. (GYSEV Zrt.) has launched a public procurement for the partial reconstruction of two 10.70 m reinforced concrete bridges with circular steel reinforcement.

The railway structures of the Frankenburg Road underpass, built in 1988, became the property of GYSEV Zrt. in 2021, after legal disputes were settled. In the three decades since the bridges were completed, the condition of the crossings has deteriorated significantly, mainly due to the lack of drainage of the backfill.
In 2019, the railway company will have the renovation plans drawn up, on the basis of which the maintenance work on the two railway overpasses will be carried out in several phases.

Photo: GYSEV Zrt.

Two phases of renovation already completed

In recent years, work has already been completed on the phases of the project that also involved rail traffic. The insulation has been replaced, the backfill has been drained and the levelling plates have been installed. After the work carried out in 2021 and 2022, the backfill of both bridges is now working properly, and the reinforced concrete structure of the bridge abutments and wing walls has been dried out.

The work is carried out while rail traffic is guaranteed

In the next phase of the reconstruction of the two bridges, the contractor selected in the public procurement procedure will have to carry out the reconstruction of the structures, which will also affect road traffic. In the current phase, the main task of the contractor will be to provide corrosion protection for the structures, while limiting track capacity and ensuring rail traffic.
The track structures of the bridges in the section 321+75 hm Ágfalva-Sopron and the section 851+90 hm Sopron-Sopron OH, each with an opening of 10.70 m, have already been dismantled and rebuilt in a previous renovation phase and are therefore not affected in this phase.

The street lighting on the bridge will be dismantled during the renovation

The renovation will require the street lighting on the two bridges to be dismantled and reinstalled after completion. As with the bridges, the work will involve corrosion protection of the supporting structure of the power lines, which run on separate support cables, without removing the cables.

The specification requires that the surface treatment of bridges should use a technology that can be applied in an urban environment without endangering the traffic passing under the bridge.

The project will also include the replacement of the edge protection nailing steel of the bridge ends and the replacement of the ceramic figures commemorating the date of the bridge construction.
Bids for the work can be submitted until 11 November.

Source : Link

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