BRIDGE BEARING PART WITH POLYMER SLIDING LAYERS Russian patent published in 2024 - IPC E01D19/04 

FIELD: construction.

SUBSTANCE: invention can be used in construction and reconstruction of bridges and other artificial structures as an intermediate link transmitting operational loads from spans to supports. Supporting part of the bridge can include an upper balancer or an upper balancer with power planks fixed to the bridge span and fixed to the fixed support lower balancer or lower balancer with attached power bars, or a ball segment placed between the upper balancer and the lower balancer, rigidly connected to upper balancer or in contact with it with possibility of slippage through polymer sliding layer, or a ball segment and a movable plate placed between the upper balancer and the support base. Upper balancer, and/or lower balancer, and/or support base, and/or ball segment, and/or movable plate form with each other at least one pair of sliding, and as material of polymer sliding layer there used is composite polymer material based on polytetrafluoroethylene, reinforced with modified carbon fibers with applied nano-coating of fluoropolymer.

EFFECT: providing a temperature range of operation of the support part of the bridge in the range from −70 °C to +50 °C, which allows to take up pressure on the polymer sliding layer of not less than fk=196 MPa, while providing a total sliding path of at least 50 km and a reliable operation life of the support part of the bridge of at least 50 years.

1 cl, 17 dwg