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Near the southern shore of Hungary’s Lake Balaton, at Köröshegy, work is well underway on one of the longest valley crossings in Central Europe. The 1872 m long superstructure of the viaduct is distributed across 16 piers of up to 80 m in height. These are being formed by contractors Hídépíto˝ Rt using the fast, wind-stable Doka climbing system GCS.
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| The conically tapering piers are rising in a 6-day cycle. The 5 m high concreting sections all have different geometries. The Doka climbing system GCS stands out for its ease of operation, high working speeds and superlative workplace safety. |
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The foundation work for the piers of the Köröshegy valley crossing started in September 2004. Frequent gusts of wind in the lowlying Pannonian plain make it difficult to lift and reset large formwork elements.
Therefore, all the piers are each being formed using 4 sets of guided climbing formwork GCS. The Doka climbing system stands out for its ease of operation, high working speeds and superlative workplace safety. Every single platform unit is guided up the side of the structure, and secured to it, by steel girders in suspension shoes.
The system also functions perfectly smoothly in strong winds, as the platform and formwork remain anchored to the structure throughout the entire lifting operation. This rapid repositioning operation saves a considerable amount of crane time, especially in gusty wind conditions.
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| Senior Hidépitö engineer Balázs Vörös particularly appreciates the safety advantages of the GCS system during the lifting operation on the pier formwork. |
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