DEVICE FOR REINFORCEMENT OF FOUNDATIONS OF COLUMNS Russian patent published in 2015 - IPC E02D27/08 

FIELD: construction.

SUBSTANCE: device for reinforcement of foundations of columns includes a reinforced-concrete broadening flange, reinforced-concrete cantilevers used for soil compression, connected to the foundation with steel rods and having embedded parts in the form of a guide pipe with rids welded on the sides and fixing the pipe position in the cantilever body, gusset plates welded to longitudinal reinforcement bars of the column shaft and a base plate. Reinforced-concrete cantilevers are provided with projections of rods with screw thread on free end, which are connected by nuts to a steel beam being a support for a jack. Through the guide pipe there is passed a steel rod that is borne with one of its ends against the jack and with the other one through a steel plate against the reinforced-concrete broadening flange. The pipe walls and the rod are provided with through holes located perpendicular to the vertical axis and intended for arrangement of a steel pin fastening the settlement of the broadening flange under load when one of the holes in the rod is being aligned with holes made in the pipe walls. To the longitudinal reinforcement bars of the column shaft there welded are four gusset plates connected to the foundation body through the base plate arranged on its surface in the zone of connection to the column.

EFFECT: improving efficient reinforcement of individual foundations for columns due to a higher soil compression degree of the base with hydraulic jacks; increasing strength of the foundation for column forcing-through.

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