PUSHING DEVICE FOR BRIDGE STRUCTURE Russian patent published in 2008 - IPC E01D21/00 

FIELD: bridge construction, particularly translational movement of box-like or beam-like bridge sections having solid walls.

SUBSTANCE: pushing device comprises a number of pushing jacks, engagement means, which engage lower span structure belt, platform, rolling paths, rolling path movement mechanism having platform and engagement means in vertical plane and fixed anchor stop built in concrete massif. To provide pushing device usage as braking mechanism pushing jacks are secured to rocking arm through finger. The rocking arm is connected to engagement means through hinged connection. Engagement means have levers, which are locked in long-term standing position with fixing nuts. In the case of variable thickness of lower span structure belt sheet pressing dies of engagement levers are shaped as semi-cylinders, stepped members and are freely connected with engagement levers through suspension brackets. To provide automatic adjustment of rolling path having platform and engagement means, as well as pushing jacks and seat with respect to lower belt sheet plane following means is used. The following means is in contact with lower surface of belt sheet.

EFFECT: extended field of application, possibility of device usage as braking device during translational bridge section movement.

3 cl, 6 dwg