METHOD FOR COMPLEX RECONSTRUCTION OF BRIDGE STRUCTURE Russian patent published in 2024 - IPC E01D22/00 

FIELD: bridge building.

SUBSTANCE: invention relates to the field of bridge building, namely to reconstruction of bridge structure, covering combination of longitudinal and transverse reinforcement. Method of complex reconstruction of bridge structure 1, includes truss system 2 of longitudinal reinforcement and additionally hinged joint on plate 11, which together provide operation along full length of entire span 5 and along vertical in full section. Pre-formed are concrete segments with pipes in lower part 6 in inter-beam space 7, concrete segments with pipes in upper part 8 in above-support zones 9. After that, from one side of span 5, bundles of strands 3 are passed into pipes of concrete segments 8 in above support zones 9, then into pipes of concrete segments 6 in inter-beam space 7, further into pipes of concrete segments 8 of next support zones 9 and in such sequence to end of span 5. Then bundles of strands 3 are fixed on one side of span 5 with anchor elements 10, and bundles of strands 3 are stretched on opposite side of span 5 and fixed with anchor elements 10. Beams 4 are hinged in pairs along the bridge structure at the level of the plate of span. In above-support zones 9 above inter-beam space 7 formwork 15 is installed, then metal reinforcing frame in form of mesh 13 is installed. After that, the formwork with reinforcing frame 13 is concreted with fibre-reinforced concrete and fixed to the beams with anchors 14.

EFFECT: increased durability of bridge structure.

1 cl, 4 dwg