ROLLER SUPPORT PART Russian patent published in 2023 - IPC E01D19/04 

FIELD: bridge construction.

SUBSTANCE: in the roller support part of the bridge span, which includes an upper support plate, a roller with cut-off side parts, a lower support plate, anti-theft strips attached to the ends of the roller with teeth included in the grooves of the upper and the lower support plates, metal segments are fixed to the side cut surfaces of the roller, complementing the cross-section of the skating rink to the shape of a circle. The use of this roller bearing part makes it possible to avoid loss of stability of the supporting part when the permissible displacement value is exceeded due to non-design movement of the support, as well as due to long-term creep deformations of beams of spans with non-pre-stressed frame reinforcement.

EFFECT: stability of the supporting part of the bridge superstructure when it exceeds the permissible displacement values.

1 cl, 2 dwg