UA91916U - Reinforced concrete slab of rail seat - Google Patents

Abstract

A reinforced concrete slab of a rail seat of tram track upper, lower, lateral and end sides, on the upper side of two parallel rail channels are made, and the reinforcement has the form of a spatial frame, and in the upper parts of lateral sides inserts are installed in the form of plates connected to the reinforcement.

Description

The useful model applies to the field of construction and reconstruction of rail roads, mainly ballastless construction of the superstructure of tram tracks, in particular, both the construction of tram tracks on an independent and separated track, and the construction of crossings at the intersection of the tram track with the carriageway of the road.

There is a known reinforced concrete slab for the under-rail base of a tram track, which has upper, lower, side and end sides, on the upper side of which two parallel rail channels are made, and in which the reinforcement is in the form of a spatial frame, (patent SHA 36743, prototype). Metal gutters are installed in the rail channels of the specified plate. The plate has M-shaped and U-shaped built-in reinforcing elements located under metal gutters. The channels are equipped with a metal bed, which under dynamic load and vibration from the rolling stock leads to its detachment from the concrete, corrosion of the metal in the detached places and destruction of the slab. In addition, on the upper edges of the sides, concrete chips occur during the crossing of the slab by vehicles, which leads to premature destruction of the slab.

The useful model is based on the task of creating a reinforced concrete slab for the under-rail base of a tram track, in which, due to changes in the design of the reinforcement and the location of its elements, it is possible to obtain slabs with a high resistance of its surface against destruction, and to increase the service life by reducing the costs of current maintenance of the track.

The problem is solved by the fact that in the reinforced concrete slab of the sub-rail base of the tram track, which has upper, lower, lateral and end sides, on the upper side of which two parallel rail channels are made, and in which the reinforcement has the form of a spatial frame, according to a useful model in the upper embedded parts in the form of plates connected to the reinforcement are installed in the parts of the sides.

The plates are located along the entire length of the sides.

This implementation allows you to eliminate metal gutters, and, therefore, a destructive effect on the slab, to increase the characteristics of the bending strength of the slab due to the redistribution of the loads acting on it in the body of the slab.

A useful model is explained by drawings that show:

Fig. 1 - front view of the plate,

Fig. 2 - cross section of the plate along the reinforcement line.

З The reinforced concrete slab of the sub-rail base of the tram track is a monolithic structure of a trapezoidal shape, which in its cross section has a central 1 and lateral 2 and З protrusions formed in the slab by two parallel rail channels 4 and 5. The slab has reinforcement in the form of a spatial frame containing the upper 6 and lower 7 reinforcement grids. In addition, the plate has reinforcing connecting elements 8, 9 and 10, also made in the form of spatial reinforcing frames, separate reinforcing rods 11. The drawing shows the links of reinforcing elements that fell into the cut. In general, the central connecting element 9 is made in the form of a parallelepiped with bases made of curved reinforcing rods in the form of a rectangle not closed from the bottom. The spatial structure of reinforcing connecting elements 8 and 10 in the side protrusions has a trapezoidal cross-section. Reinforcement of the plate is provided by structurally non-stressed reinforcement in the longitudinal and transverse directions. The plate has lifting technological hinges 12. In the side protrusions of the plate, tubular embedded parts 13 for slinging work are installed. The plate also has embedded parts in the form of metal plates 14, which are located along the entire length of the sides to prevent chipping of the plate edges.

During the production of the slab, a reinforcing frame is first made and devices for slinging means 12, 13 and metal plates 14 are attached to it to prevent chipping of the edges of the slab. Plates 14 are rigidly connected to the frame, which gives the frame, and therefore the plate, additional rigidity. The plate is made with the upper surface to the bottom of the formwork (conditionally not shown). Therefore, in a reinforced concrete slab located in the formwork, after pouring concrete 15 into the formwork, embedded parts 12 will be visible, which are located in the corners of the lower part of the slab, which are used when transporting the slab to the next technological process of slab production. In the extreme end sections of the side protrusions 2 and C, there are devices 13 for means of slinging, which are used during the installation and dismantling of the rail covering.

The use of the proposed useful model ensures an increase in the load-bearing capacity of the slabs, an increase in the characteristics of their bending strength, an increase in the service life, and a decrease in the costs of current track maintenance.

Claims (2)

USEFUL MODEL FORMULA 1. A reinforced concrete slab of the sub-rail base of a tram track, which has upper, lower, side and end sides, on the upper side of which two parallel rail channels are made, and in which the reinforcement has the form of a spatial frame, which differs in that in the upper parts of the side sides embedded parts in the form of plates connected with reinforcement are installed. 2. Reinforced concrete slab according to claim 1, which is characterized by the fact that the plates are located along the entire length of the sides. I and khz N : : | we eat Yang. I" in ge z k still I Still I but zh and 5 to be bored, I dyn pon yn yn shoulder with EE Maybe I nn nn nn a zh i p i V V I fofrzhe iy pu V ikku Ki BOR ot Metu teo V ih ki i: VK VIeKAH sho MNN NM NN MM, PO, OO s Ve 7 i NK NN NN NN nn NK EN y U vh nai d ny i DK "FG.