FIELD: bridge building.
SUBSTANCE: device comprises metal fixers anchored by their ends in lower bridge structure part, and bridge piers. Fixers are located coaxially to support parts and formed as cantilever members symmetrically connected to lower bridge span part. Each cantilever member includes two parallel and transversal beams connected to ends of longitudinal beams and having length corresponding to distance of bridge span displacement in longitudinal direction. Vertical clamps with upper and lower rests are secured to bridge pier coaxially to fixers so that transversal beam of cantilever members is located inside clamp and spaced from inner clamp edges.
EFFECT: restriction of longitudinal beam movement in transversal and vertical directions along with provision of free movement thereof in longitudinal direction.
2 cl, 4 dwg
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