RU202383U1 - Supporting part of the bridge - Google Patents

Abstract

The utility model relates to bridge construction, in particular to the supporting parts of bridges. The technical result is an increase in reliability when operating on horizontal loads. The support part of the bridge includes an anchor plate, lower and upper balancers with matching spherical sliding surfaces and an antifriction material located on them, a retainer made in the form of thrust beams, and the lower balancer is equipped on the lateral surfaces with stops inserted into the grooves, contacting with the inner surfaces of the retainer beams , the stops are made of a corrosion-resistant material with the front surface provided with an anti-friction coating, and the grooves on the side surfaces of the lower balancer have thin projections that are bent inward to fix the stop. 1 wp f-ly, 5 dwg

Description

The utility model relates to bridge construction, in particular to the supporting parts of bridges.

Known linearly movable support part (SU 1472555, E01D) 19/04, 04/15/1989), including the outer and inner metal plates, located with a gap filled with elastomer, distributing pressure on the sub-bar element and the upper support sheet, outer and inner metal plates are cylindrical, arranged coaxially and have a vertical, parallel to the axis of the support part, a slot in which the upper support sheet is vertically located, and the latter is equipped with a metal core fixed on its lower edge located in the cavity of the inner plate, and the element that distributes the pressure on the sub-bar is made in the form channel-shaped cradle attached by the ends of the shelves to the outer metal plate along the entire length.

The disadvantages of the known support part are: insufficient reliability in the transmission of horizontal loads and limited application possibilities in the construction of bridge structures.

The closest in technical essence to the claimed utility model is the support part of the bridge (RU 2235821, E01D 19/04, 10.09.2004), including an anchor plate, lower and upper balancers with counter spherical sliding surfaces and antifriction material located on them, a central pivot passing through the upper and lower balancers, the upper support plate, the lower balancer is equipped with a glass enclosing the kingpin, and the upper balancer in the upper part has a spherical sliding surface, while the supporting part is equipped with an additional balancer with a spherical sliding surface, which is in response to the spherical sliding surface of the upper part of the upper balancer, and the additional balancer rests through a gasket made of antifriction material on the upper balancer, and the pivot unites the lower, upper and additional balancers with the possibility of turning the upper balancer relative to the lower and additional balancers, while between the upper support A sliding plate is located with the upper plate and the upper balancer, which is combined with the upper plate and the upper balancer by means of tension bolts and a retainer made in the form of thrust beams with shoulders, with which the upper balancer interacts with its lower plane, and also with the fact that the lower balancer is provided on the side surfaces with stops in contact with the inner surfaces of the stop beams of the retainer.

The disadvantage of this support part is insufficient reliability when operating on forces when transmitting horizontal actions with simultaneous rotation of the support unit on the extreme fibers of the ribs of the thrust beams and the balance beam.

The task of the utility model is to create the support part of the bridge that is reliable when operating on horizontal loads, ensuring a minimum coefficient of friction during the operation of the support part.

The technical result is to increase the reliability of the support part of the bridge.

The technical result is achieved by the fact that in the support part of the bridge, which includes the anchor plate, the lower and upper balancers with matching spherical sliding surfaces and an antifriction material located on them, a retainer made in the form of thrust beams, and the lower balancer is equipped on the side surfaces with stops fixed in the grooves contacting the inner surfaces of the thrust beams, the stops are made of corrosion-resistant material and with an anti-friction coating on their front surface, and the grooves for the stops on the side surfaces of the lower balancer are made with the formation of projections bent inward.

The slots in the lower balance bar can be made in the form of a "dovetail".

FIG. 1 shows the bearing part of the bridge assembly, FIG. 2 shows the contact unit of the stop and the stop beam of the catch, FIG. 3 shows a fragment of the lower balance bar with a groove, FIG. 4 is a cross-section of a groove with thinned projections, FIG. 5 - bent protrusions of the groove for fixing the stop.

The support part of the bridge includes an anchor plate 1, lower 2 and upper 3 balancers with mating spherical sliding surfaces 4, 5 and located on them antifriction material 6 (for example, from Daklen fabric, sheet fluoroplastic or high-strength polyethylene), a retainer made in the form of thrust beams 7, the lower balancer 2 has grooves 8 on the lateral surfaces, into which the stops 9 are inserted, contacting with the inner surfaces 10 of the stop beams 7 of the clamp, the stops 9 are made of corrosion-resistant material (for example, stainless steel, chromium-nickel alloys or synthetic materials) with antifriction coating 11 (for example, Daklen cloth, fluoroplastic film or a layer of high-strength polyethylene) on their front surface, and grooves 8 for stops 9 on the side surfaces of the lower balancer 2 are made with the formation of thinned inwardly bent projections 12. The grooves 8 in the lower balancer 2 can be are made in the form of "dovetail".

The work of the support part of the bridge is as follows.

The vertical load through the anchor plate 1, lower 2 and upper 3 balancers with mating spherical sliding surfaces 4, 5 and located on them antifriction material 6 is transferred to the bridge support. Horizontal loads are transmitted to the bridge support through the anchor plate 1, the retainer made in the form of thrust beams 7, to the lower balancer 2, which is equipped on the lateral surfaces with stops 9 inserted into the grooves 8, which are made of corrosion-resistant material with a front surface equipped with an anti-friction cover 11. The stops 9 are fixed in the grooves 8 on the lower balance bar 2 by bending mechanically thinned projections 12.

The supporting part of the bridge has increased reliability compared to the prototype due to the execution of stops made of corrosion-resistant material and with an anti-friction coating on their front surface, and due to the new fastening of the stops on the lower balance bar.

Claims (2)

1. The support part of the bridge, including the anchor plate, the lower and upper balancers with matching spherical sliding surfaces and an antifriction material located on them, a retainer made in the form of thrust beams, and the lower balancer is equipped on the lateral surfaces with stops fixed in grooves in contact with the inner surfaces thrust beams, characterized in that the stops are made of a corrosion-resistant material and with an anti-friction coating on their front surface, and the grooves for the stops on the side surfaces of the lower balancer are made with the formation of projections bent inward. 2. The support part of the bridge according to claim. 1, characterized in that the grooves in the lower balance beam are made in the form of a "dovetail".

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