METHOD OF BRIDGE SUPERSTRUCTURE LONGITUDINAL LAUNCHING Russian patent published in 2008 - IPC E01D21/00 

FIELD: building.

SUBSTANCE: invention refers to bridge building and can be applied in the method of bridge superstructure longitudinal launching. The method provides the installation of temporary supports in span, placing knurling beams on them and basic parts, installation of a building berth and pushing jacks, assemblage of lots of a superstructure on a building berth and consecutive launching the collected lots of a superstructure on knurling beams of and the subsequent fixing of the pulled superstructure on one of bearers. The new thing lies in fixing the pulled superstructure on one of intermediate bearers, motionless basic parts are mounted under knurling beams, and on all others - the mobile ones that are wedged during the launching period. All basic parts are placed on bridge caps of intermediate bearers horizontally, and after the launching termination a superstructure is fixed on a temporary support where motionless basic parts are located, and simultaneously make a shimming of mobile basic parts and an attachment of all knurling beams, leaning on them, to a superstructure.

EFFECT: reduction of a horizontal load by temporary supports with motionless basic parts and implementation of fixing of a superstructure after longitudinal launching on the temporary support in the absence of powerful constant bearers.

2 dwg