SU1416591A1 - Articulated road paving slab - Google Patents

Abstract

The invention relates to road construction. The aim of the invention is to increase the durability and reliability of the exploitation. The road articulated plate 1 is made of road concrete, reinforced with rod 2, site IIu, and through the whole body of plate 1. Inside plate 1, there is a frame 3 made as an element of T-section, the wall of which is facing upwards and is located along the partition axis of plate 1, and attached to the shelf below a vertical corrugated sheet, each shelf being provided with a coating of hydrophobic material. 3 il. at

Description

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The invention relates to road construction.

The aim of the invention is to improve durability and reliability of operation.

FIG. Pictured proposed

: road articulated slab, view in

: plan; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 2.

The road articulated plate 1 is made of road concrete, reinforced with rods 2, passing through the whole body of plate 1. Inside the plate 1 there is a frame 3 made, for example, of a material with a strength less than Shape than road concrete. Frame 3 It is made in the form of a T-section element, including a vertical shelf 4 and a horizontal shelf 5, which rests on a perpendicular to it: a corrugated sheet 6 of periodic profile in plan. Vertical shelf A and sheet 6 are rigidly connected to shelf 5.. Shelf 5 is covered with a hydrophobic material - 7 (for example, paraffin or grease) to delay the water 8 that has penetrated into the upper part of the crack. The frame 3 can be made, for example, stamped (from plastic) or glued (from plastic, fibreboard, wood, asbestos cement, etc.).

B The process of operating the precast coating in the slab 1 under the action of loading from vehicles results in the formation of cracks 8 in the concrete in 3 zones weakened by the frame. The crack shape repeats the shape of frame 3 both in plan and in transverse direction.

profile, since the adhesion of the surface of the frame with concrete is insignificant, or the frame 3 is made of a less durable material. Plate 1 is divided into sections delimited in terms of cracks 8 by carcass shape 3, connected by rods 2. Crack shape 8, the upper part of which is in the form of a vertical plane repeating the shape of shelf 4, the middle part is in the form of a horizontal plane, repeat The shape of the shelf 5, and the lower part has a corrugated shape that repeats the shape of sheet 6, allows the concrete of slab 1 to work together with the rods 2 to transfer the vertical forces from the operating load from section to section. In addition, broken

the shape of the cracks 8 in the plan, corresponding to the shape of the plan of the frame 3, provides for the transfer from section to section of bending moments, arising from external load.

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Claims (1)

Invention Formula " A road articulated plate including a support structure with a broken break line and working reinforcement, characterized in that, in order to increase durability and reliability of operation, it is equipped with frames, each of which is made as an element of T-shaped section, the wall of which is upward and located along the partition axis of the slab, and a vertical corrugated sheet attached to the shelf below, each shelf being provided with a coating of hydrophobic material. Compiled by V.Gonik Editor T.Parfenova Tehred M.Hodanich Order 4039/27 Circulation 517 VNIIPI USSR State Committee for inventions and discoveries 11303.5, Moscow, Zh-35, Raushsk nab., 4/5 Fig.d Proofreader L. Pilipenko. Subscription