METHOD FOR TRANSVERSE RELOCATION OF BRIDGE SUPERSTRUCTURE FOR EXTENDED COLLAR BEAM Russian patent published in 2015 - IPC E01D21/06 E01D22/00 

FIELD: construction.

SUBSTANCE: first, a collar beam is extended on both sides of supports. After that, the lower flange of the existing structure is reinforced and lifted and rollers are installed under the lower flange. Then, jacks are installed and the existing superstructure is relocated with jacks in transverse direction of bridge supports. After that, rollers are removed and traffic flow is arranged on the relocated existing superstructure. After that, on the free part of the supports with the extended collar beam, near the relocated existing superstructure there installed is a block of the main beam of the first part of a new superstructure; then, the next block is installed, and blocks of the first part of the new superstructure are combined. After that, a cantilever orthotropic plate is installed and the first part of the new superstructure is provided with road pavement. Then, traffic flow is shifted to the first part of the new superstructure. After that, the existing superstructure is removed. Removal of the existing superstructure is performed at several stages: first, cantilevers are removed; after that, reinforced-concrete slabs are cut and removed; then, each beam is removed separately. In the place of the removed existing superstructure there installed is the block of the main beam of the second part of the new superstructure; then, the next block is installed, and blocks of the second part of the new superstructure are combined; after that, a cantilever orthotropic plate is installed. The first part of the new superstructure is combined with the second part of the new superstructure with a reinforced-concrete slab and provided with road pavement and enclosures.

EFFECT: improved method.

2 cl, 8 dwg