DEVICE FOR PRECISION INSTALLATION OF PANELS SUBJECTED TO FOUR POINTS OF BRIDGE STRUCTURAL STRUCTURES

摘要

The technical solution relates to the construction and reconstruction of span structures of bridge structures. The technical result is an increase in the accuracy of the installation of the bridge span structure during its erection or reconstruction. This is achieved by the fact that the device for precise mounting of the bridge span structures suspended for four points includes a mechanism for their vertical displacement in the form of an even number of packages equipped with devices for controlling the opening and closing of the upper and lower double-acting hydraulic jacks associated with the individual for each of them by an electrohydraulic station with a control system for vertical movement and the state of collet anchors Depending on the pressure in each of the jacks, the deviation from the projected position of each of the four attachment points of the span structure, the time and speed of the lift, the upper collet anchor for the steel seven-wire ropes attached directly to the hollow piston of each double-action hydraulic jack, and the lower anchor grip for fixing the ropes in the reverse stroke of the piston in the fixed housing of the jack, while half of the steel seven-wire ropes connected to the collet anchors of each hydraulic jack, and the left whistle, and the other half - the right one.