METHOD OF SPRENGEL REINFORCEMENT OF SPAN STRUCTURE Russian patent published in 2023 - IPC E01D22/00 

FIELD: bridge building.

SUBSTANCE: method for reinforcing a span includes reinforcing the span by means of a trussed system for fixing bundles of strands on beams of the span. To do this, in the middle of each span in the interbeam space, concrete segments are formed with pipes in the lower part to pass bundles of strands. In the overbearing zones in the interbeam space, overbearing concrete segments are additionally created with pipes in the upper part to pass the bundles of strands. After that, bundles of strands are passed first into the pipes of overbearing concrete segments on one side of the superstructure, then into the pipes of concrete segments, then into the pipes of the following overbearing concrete segments and in this sequence until the end of the superstructure. After pulling the bundles of strands from the beginning to the end of the superstructure, they are fixed on one side of the superstructure on the overbearing concrete segments with anchor elements. On the opposite side of the span structure, bundles of strands are pulled with the help of jacks and fixed on the last overbearing concrete segments with anchor elements.

EFFECT: increase in the reliability of reinforcement and simplification of the process of strengthening the span.

1 cl, 4 dwg