FIELD: construction industry, building of beam bridges. SUBSTANCE: moving gear has base which upper part carries working table with polished surface, sliding support which lower part is fitted with hydraulic power modules and jacks made fast to it. Transfer pedestals manufactured in the form of vertical jacks are placed in symmetry on both ends of base and sliding support is joined to base by means of horizontal jacks. In process of operation span structure is held off on sliding support with the aid of jacks. After this hydraulic power modules forming oil cushion between sliding support and table are switched on. Horizontal hydraulic cylinders move span structure on. EFFECT: increased functional reliability and efficiency of moving gear. 2 cl, 3 dwg
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