RU178692U1 - The tongue-and-groove clamp for placement between the end surfaces of reinforced concrete slabs - Google Patents

Abstract

This utility model relates to the field of transport construction, namely, to a device for paving roads combined with rail tracks, in particular, to a road surface for automobile transport in tram tracks. The technical result is to simplify the installation process of precast concrete coatings of tram tracks and increase their operational reliability. The technical result is achieved by using a tongue-and-groove retainer for placement between the end surfaces of reinforced concrete slabs from a rubber profile, while the rubber profile is made of a complex shape corresponding to the contact surfaces of the reinforced concrete slabs, in the form of mated planes located at right angles, three of which form a rectangular groove, and the fourth located on the edge of one of the side walls of the groove. 1 ill.

Description

This utility model relates to the field of transport construction, namely, to a device for paving roads combined with rail tracks, in particular, to a road surface for automobile transport in tram tracks.

Known filler gaps between the plates of the tram track, which at 2/3 of the height of the gap consists of a mixture of sand and cement, and on the upper 1/3 - from mastic. consists of: A filler fills the gap flush with the surface of the plates [Patent RU No. 2376408, IPC Е01В 21/00, Е01С 9/06, Е01С 9/04, Е01В 2/00, publ. 12/20/2009].

The disadvantage of filler gaps between the end surfaces of reinforced concrete slabs is the lack of elasticity of the connection of the end surfaces of the slabs, which leads to destruction during operation and the difficulty of subsequent replacement of the slabs during repair work.

Known rubber gaskets for sealing the joints of the protrusions of the end faces of the slabs of the reinforced concrete coating of the tram tracks. Sealing gaskets are made in the form of sheet rubber and are designed to insulate transverse joints at the joints from moisture and foreign objects. In addition, the rubber gaskets additionally damp the vibrations that occur in the coating plates during traffic [Patent RU No. 21585838 IPC E01C 9/06, E01B 21/00, publ. 09/10/2000].

The disadvantage of rubber gaskets is the deformation of their surface during installation and operation of the road surface. In addition, due to the sheet design of the gaskets, the unevenness of deformation does not provide an effective and high-quality joint of the end faces of the plates of the reinforced concrete coating of the tram tracks.

The closest technical solution is the laying of sheet rubber to seal the joints of the end faces of the plates of the prefabricated cover of the tram tracks and isolate the transverse seams from moisture and foreign objects. In addition, the rubber gaskets additionally damp vibrations arising from the movement of vehicles [Utility Model of the Russian Federation No. 43884, IPC E01C 9/06, E01B 21/00, publ. 02/10/2005].

The reasons that impede the achievement of a given technical result include the fact that a gasket made of sheet rubber during installation and operation of a prefabricated coating needs additional holding or gluing to the surface of the protrusion. In addition, due to the sheet design of the gaskets, the unevenness of deformation does not provide an effective and high-quality joint of the end faces of the plates of the reinforced concrete coating of the tram tracks.

The task is to develop the design of the tongue-and-groove fixer, which ensures high quality of the joint of the end surfaces of the slabs of the precast concrete coating of the tram tracks.

The technical result is to simplify the installation process of precast concrete coatings of tram tracks and increase their operational reliability.

The technical result is achieved by using a tongue-and-groove retainer for placement between the end surfaces of reinforced concrete slabs from a rubber profile, while the rubber profile is made of a complex shape corresponding to the contact surfaces of the reinforced concrete slabs, in the form of mated planes located at right angles, three of which form a rectangular groove, and the fourth located on the edge of one of the side walls of the groove.

The essence of the technical solution lies in the design of the clamp, in which during installation of the coating plate on the end surface with a longitudinal row, a tongue-and-groove fixer is fixed - it is put on with a groove on the comb. Thus, with further installation, there is no need to hold the latch using additional devices and align it at the junction. The crest and trough of the protrusions of the end faces of each plate form locks with troughs and ridges adjacent to them at the joints of the end faces of adjacent plates. Due to the design of the latch, it is possible to land the plate on the latch without additional restraint from displacement when laying the plates or gluing to the end of the plate. At the same time, the reliability of the structure is ensured - due to the tight uniform fit over the entire contact surface, and the convenience of installing reinforced concrete coatings of tram tracks.

The tongue-and-groove lock for placement between the end surfaces of reinforced concrete slabs, in the form of a rubber sealant with a complex profile, performs the functions of protecting the transverse joints at the joints from moisture, and also allows the ridges to swing in the troughs of adjacent protrusions within the thickness of the clamp. Also, rubber clips additionally damp vibrations that occur in the slabs of the coating during traffic.

The drawing shows a cross section of a tongue-and-groove fixer for placement of precast coatings for tram tracks between the end surfaces of reinforced concrete slabs.

The tongue-and-groove lock for placement between the end surfaces of reinforced concrete slabs is made of a complex shape rubber profile in the form of conjugate planes 1-4 located at right angles, three of which 1-3 planes form a rectangular groove, and the fourth plane 4 is located on the edge of one of the side walls 3 groove and turned in the opposite direction from the groove. Moreover, the shape of the rubber profile corresponds to the shape of the contact surfaces of reinforced concrete slabs.

Example.

The parameters of the assembly elements of the tram tracks:

Plate reinforced concrete gauge PMK 1438/2994 TU-5846-004-22412536-2016 for prefabricated coatings of tram tracks (plate width 1438 mm, length 2994 mm).

A tongue-and-groove lock for placement in a lock connecting the end surfaces of reinforced concrete slabs: the height of the clamp (105 mm) corresponds to the length of the contact end surface in the upper part of the reinforced concrete slabs (correspond to plane 4) and the height (50 mm) of the tongue-and-groove lock (plane 2) of the end surface of the slabs. The horizontal dimensions (40 mm) of the tongue-and-groove retainer (correspond to planes 1 and 3) correspond to the longitudinal dimensions of the tongue-and-groove castle of reinforced concrete slabs. The thickness of the rubber profile of the clamp is 5 mm, which allows the ridges to swing in the troughs of adjacent protrusions within the thickness of the clamp. The length of the retainer corresponds to the width of the reinforced concrete slab (gauge or inter-track).

The design works as follows.

The crests and depressions of the end faces of adjacent plates of the coating at the time of installation are in lock engagement, eliminating the displacement of the plates in the joint in a vertical plane relative to each other. In the process of installing the coating plates on the end surface with a longitudinal row, a tongue-and-groove fixer is fixed - it is put on with a groove on the comb. After that, the plate is laid with a shift to the plate, on the end surface of which the corresponding crest is made (trough). Thus, with further installation, there is no need to hold the latch using additional devices and align it at the junction. The crest and trough of the protrusions of the end faces of each plate form locks with troughs and ridges adjacent to them at the joints of the end faces of adjacent plates. At the same time, the reliability of the structure is ensured - due to the tight uniform fit over the entire contact surface, and the convenience of installing reinforced concrete coatings of tram tracks.

The advantage of this type of tongue-and-groove fixer is that it isolates the transverse seams at the joints from moisture and allows the ridges to swing in the troughs of adjacent protrusions within the thickness of the fixator. The implementation of the clamp of the claimed form allows for installation to maintain a constant thickness over the entire contact surface - to avoid deformation, which provides the same damping and elastic properties of the clamp and, accordingly, a better joint along the entire joint surface. Due to the claimed design of the latch, it is possible to land the plate on the latch without additional holding it from displacement when laying the plates - by putting the latch on the comb.

Thus, when placing a tongue-and-groove fixer of a rubber profile of complex shape between the end surfaces of reinforced concrete slabs corresponding to the contact surfaces of the reinforced concrete slabs, in the form of conjugated planes located at right angles, three of which form a rectangular groove, and the fourth is located on the edge of one of the side walls of the groove It provides a simplification of the installation process of precast concrete coatings of tram tracks and an increase in their operational reliability.

Claims (1)

A tongue-and-groove fixer for placement between the end surfaces of reinforced concrete slabs from a rubber profile, characterized in that the rubber profile is made of a complex shape corresponding to the contact surfaces of the reinforced concrete slabs, in the form of mating planes located at right angles, three of which form a rectangular groove, and the fourth is located on the edge one of the side walls of the groove.

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