METHOD OF ERECTION OF BRIDGE SUPERSTRUCTURE ON SKEW BRIDGES AND DEVICE FOR MOVING THE BRIDGE SUPERSTRUCTURE Russian patent published in 2004 - IPC

FIELD: erection of bridge superstructures on skew bridges.

SUBSTANCE: proposed method includes erection of building ways at bridge approaches, arrangement of tracks on bridge piers and on building ways, assembly of pushing equipment, assembly of sections of bridge superstructure, mounting of launching girder on bridge superstructure and moving the sections assembled on building ways at resting of launching girder on bridge piers. Novelty of invention consists in mounting the girders at two stages: first, main central girder is secured along axis of bridge superstructure and then additional girder whose length is lesser than length of main central girder is mounted; it is located on side of obtuse angle of front part of bridge superstructure for preliminary resting of main central girder and subsequent resting of additional girder on bridge piers. Novelty of invention consists in sectional form of launching girder which consists of main and additional girders.

EFFECT: possibility of stepped taking-up of loads and torque at maximum use of load-carrying capacity of bridge superstructure.

3 cl, 3 dwg