CN214362659U - Can prevent road and bridge crack of secondary deformation fracture and repair fixed knot and construct - Google Patents

Abstract

The utility model discloses a road and bridge crack repairing and fixing structure capable of preventing secondary deformation cracking, which comprises a road and bridge main body, cracks, steel plates and vertical steel bars; a groove is formed in the upper end of the crack, a steel plate is fixed at the bottom of the groove, and the lower end of the vertical steel bar is inserted into the crack from the steel plate; the steel plate is provided with a pouring hole communicated with the crack, the crack is filled with expansive concrete from the pouring hole, and the expansive concrete and the lower part of the vertical steel bar are poured and connected into a whole; the upper part of the steel plate is provided with an asphalt mastic stone layer which is flush with the upper surface of the road and bridge main body. The utility model has the advantages that: pouring the expansive concrete, wherein shrinkage cracks can not occur after the expansive concrete is solidified; the upper ends of the reinforcing steel bars are welded with grids formed by the transverse reinforcing ribs and the longitudinal reinforcing ribs, and the grids have a good reinforcing effect on the asphalt mastic macadam mixture attached to the grids, so that the pavement is not easy to crack and peel.

Description

Can prevent road and bridge crack of secondary deformation fracture and repair fixed knot and construct

Technical Field

The utility model relates to a road bridge construction technical field, concretely relates to can prevent road bridge crack repair fixed knot of secondary deformation fracture from constructing and construct.

Background

The road and bridge generally comprise a road surface, a roadbed, a bridge, tunnel engineering, traffic engineering and the like, wherein the road surface is most easily damaged, cracks are easily generated due to various reasons, the service life of the road and bridge is shortened due to the generation of the cracks, and the stability of the roadbed can be influenced by rainwater permeating from the cracks. Therefore, the road and bridge cracks should be repaired in time. The traditional pavement crack repairing technology is mostly completed by simply filling concrete, the mode has short action duration, cannot fundamentally avoid the expansion of cracks, has poor waterproof effect and low repairing efficiency, and easily causes the asphalt concrete at the cracks to be stripped, thereby secondarily forming the cracks.

Some of the publications now provide improvements over the prior art, and while the repair of cracks is enhanced, there are still different degrees of defects. For example, chinese patent with application number CN201720722427.1 discloses a road and bridge crack repairing and fixing structure, which comprises a road and bridge main body, cracks and a filler layer, wherein the upper ends of the cracks form grooves through construction, a fixing steel plate is arranged below the grooves, and the filler layer is filled in the cracks; the packing layer and the fixed steel plate are fixed in the road and bridge main body through the fixed screws which are vertically and uniformly distributed; a plurality of barbs are arranged at one end of the fixing screw rod, which is connected with the packing layer and the road and bridge main body; the upper surface of the fixed steel plate is provided with a waterproof layer, a bonding layer is arranged above the waterproof layer, and an asphalt mastic stone layer is arranged above the bonding layer. This technical scheme adopts clamping screw to fix the filler in the crack, has still set up fixed steel sheet simultaneously to increase barb structure on clamping screw, coiled barb structure has strengthened the fixity ability, has improved the repair effect. However, the technical scheme also has the following defects: 1. the adjacent vertical reinforcing ribs are connected by springs, the springs can stretch out and draw back, and when the asphalt mastic layer is subjected to friction force in the horizontal direction of the wheel, the springs cannot deform to play a good reinforcing role, so that the pavement is deformed and cracked again; 2. the connection strength of the mastic asphalt layer in the depth direction is low, and the integral peeling is easy to cause.

Therefore, there is a need for improvements in the prior art.

Disclosure of Invention

An object of the utility model is to provide a can effectively prevent road bridge crack repair fixed knot that road surface secondary deformation ftractures constructs to prior art not enough.

The utility model adopts the technical proposal that: a road and bridge crack repairing and fixing structure capable of preventing secondary deformation cracking comprises a road and bridge main body, cracks, steel plates and vertical steel bars; a groove is formed in the upper end of the crack, a steel plate is fixed at the bottom of the groove, and the lower end of the vertical steel bar is inserted into the crack from the steel plate; the steel plate is provided with a pouring hole communicated with the crack, the crack is filled with expansive concrete from the pouring hole, and the expansive concrete and the lower part of the vertical steel bar are poured and connected into a whole; the upper part of the steel plate is provided with an asphalt mastic stone layer which is flush with the upper surface of the road and bridge main body.

According to the scheme, the upper ends of the vertical steel bars are connected with the steel bar framework, and the steel bar framework is arranged in the asphalt mastic macadam layer.

According to the scheme, the waterproof layer and the bonding layer are sequentially arranged on the steel plate, and the asphalt mastic stone layer is located on the upper portion of the bonding layer.

According to the scheme, the steel reinforcement framework comprises a plurality of transverse reinforcing ribs and a plurality of longitudinal reinforcing ribs, and the transverse reinforcing ribs and the longitudinal reinforcing ribs are welded and fixed; and the upper ends of the vertical reinforcing steel bars penetrate through the waterproof layer and the bonding layer and are connected with the transverse reinforcing ribs and/or the longitudinal reinforcing ribs.

According to the scheme, a plurality of barbs are welded at intervals along the height direction at the lower part of the vertical steel bar, and the barbs are arranged in the expanded concrete; the barb is arc structure, and its opening is upwards.

According to the scheme, the steel plate is provided with the waist-shaped hole for the vertical steel bar to pass through.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model pours the expansion concrete in the crack, and the expansion concrete can not generate shrinkage crack after solidification; the lower extreme of reinforcing bar is by solidification firmly in the concrete, and the upper end and the horizontal strengthening rib welding of reinforcing bar, horizontal strengthening rib welding and vertical strengthening rib welding form the grid structure, play good reinforcing effect to the pitch mastic rubble mixture that adheres to it, pitch mastic rubble layer non-deformable fracture, the depth direction is difficult for peeling off by steel bar firm in connection. The utility model has the advantages of reasonable design, the construction is simple, and anti deformability is strong, and secondary deformation fracture can not take place in the road surface after the restoration.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view illustrating connection between the reinforcing bars and the reinforcing cage according to this embodiment.

FIG. 3 is a schematic view of the steel plate opening in this embodiment.

Wherein: the concrete-reinforced concrete road bridge comprises a road and bridge main body 1, a 2-crack, 3-expanded concrete, 4-vertical steel bars, 5-barbs, 6-steel plates, 7-waterproof layers, 8-adhesive layers, 9-asphalt mastic layers, 10-longitudinal reinforcing ribs, 11-transverse reinforcing ribs, 12-grooves, 13-pouring holes, 14-waist-shaped holes and 15-round holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The road and bridge crack 2 repairing and fixing structure capable of preventing secondary deformation cracking as shown in fig. 1 comprises a road and bridge main body 1, cracks 2, steel plates 6 and vertical steel bars 4; a groove 12 is formed in the upper end of the crack 2, a steel plate 6 is fixed at the bottom of the groove 12, and the lower end of the vertical steel bar 4 is inserted into the crack 2 from the steel plate 6; the steel plate 6 is provided with a pouring hole 13 communicated with the crack 2, the crack 2 is filled with the expansive concrete 3 from the pouring hole 13, and the expansive concrete 3 is connected with the lower part of the vertical steel bar 4 in a pouring way; waterproof layer 7, adhesive linkage 8 and pitch mastic layer 9 have been laid in proper order from bottom to top on 6 upper portions of steel sheet, and mastic layer 9 of pitch is the upper surface parallel and level with way bridge main part 1.

Preferably, the upper end of the vertical steel bar 4 is connected with a steel bar framework, and the steel bar framework is arranged in the asphalt mastic gravel layer 9.

Preferably, as shown in fig. 2, the steel reinforcement framework comprises a plurality of transverse reinforcing ribs 11 and a plurality of longitudinal reinforcing ribs 10, and the transverse reinforcing ribs 11 and the longitudinal reinforcing ribs 10 are welded and fixed; and the upper ends of the vertical reinforcing steel bars 4 penetrate through the waterproof layer 7 and the bonding layer 8 and are connected with the transverse reinforcing ribs 11 and/or the longitudinal reinforcing ribs 10.

In this embodiment, the steel reinforcement framework includes two longitudinal reinforcing ribs 10 and three transverse reinforcing ribs 11, one end of each of the three transverse reinforcing ribs 11 is connected to one of the longitudinal reinforcing ribs 10, and the other end of each of the three transverse reinforcing ribs 11 is connected to the other longitudinal reinforcing rib 10; and after the upper end of the vertical reinforcing steel bar 4 penetrates through the waterproof layer 7 and the bonding layer 8, the upper end of the vertical reinforcing steel bar is welded with the transverse reinforcing rib 11, and the welding point is positioned between the two longitudinal reinforcing ribs 10.

Preferably, a plurality of barbs 5 are welded at intervals on the lower part of the vertical steel bar 4 along the height direction, and the barbs 5 are placed in the expanded concrete 3. The barb 5 is of an arc-shaped structure and the opening of the barb is upward.

Preferably, as shown in fig. 3, the steel plate 6 is provided with a round hole 15 and a waist-shaped hole 14, so that the vertical steel bar 4 can be conveniently inserted into the round hole, and the waist-shaped hole 14 can be used for adjusting the position of the vertical steel bar 4.

The utility model discloses a work progress does: constructing a groove 12 above the crack 2; after the vertical steel bars 4 penetrate through the waist-shaped holes 14 and the round holes 15 of the steel plates 6, the steel plates 6 are placed at the bottoms of the grooves 12, and the vertical steel bars 4 are inserted into the cracks 2; pouring the expansion concrete 3 into the crack 2 from the pouring hole 13 of the steel plate 6, and adjusting the vertical steel bar 4 in the waist-shaped hole 14 to a proper position; after the expansive concrete 3 is solidified, a waterproof layer 7 and an adhesive layer 8 are sequentially paved above the steel plate 6, then a transverse reinforcing rib 11 and a longitudinal reinforcing rib 10 are welded, and finally an asphalt mastic gravel layer 9 is paved on the adhesive layer 8, so that the asphalt mastic gravel layer 9 is ensured to completely cover the transverse reinforcing rib 11 and the longitudinal reinforcing rib 10 and be flush with the road and bridge main body 1.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A road and bridge crack repairing and fixing structure capable of preventing secondary deformation cracking is characterized by comprising a road and bridge main body, cracks, steel plates and vertical steel bars; a groove is formed in the upper end of the crack, a steel plate is fixed at the bottom of the groove, and the lower end of the vertical steel bar is inserted into the crack from the steel plate; the steel plate is provided with a pouring hole communicated with the crack, the crack is filled with expansive concrete from the pouring hole, and the expansive concrete and the lower part of the vertical steel bar are poured and connected into a whole; the upper part of the steel plate is provided with an asphalt mastic stone layer which is flush with the upper surface of the road and bridge main body.

2. The crack repairing and fixing structure for road and bridge according to claim 1, wherein the upper end of the vertical steel bar is connected with a steel bar framework, and the steel bar framework is arranged in the stone matrix asphalt.

3. The crack repairing and fixing structure for road and bridge according to claim 1, wherein a waterproof layer and an adhesive layer are sequentially formed on the steel plate, and the mastic asphalt layer is disposed on the adhesive layer.

4. The crack repairing and fixing structure for the road and bridge according to claim 2, wherein the reinforcement cage comprises a plurality of transverse reinforcing ribs and a plurality of longitudinal reinforcing ribs, and the transverse reinforcing ribs and the longitudinal reinforcing ribs are welded and fixed; and the upper ends of the vertical reinforcing steel bars penetrate through the waterproof layer and the bonding layer and are connected with the transverse reinforcing ribs and/or the longitudinal reinforcing ribs.

5. The crack repairing and fixing structure for the road and bridge according to claim 1, wherein a plurality of barbs are welded at intervals along the height direction at the lower part of the vertical steel bar, and the barbs are placed in the expanded concrete; the barb is arc structure, and its opening is upwards.

6. The crack repairing and fixing structure for the road and bridge according to claim 1, wherein the steel plate is provided with a kidney-shaped hole for vertical steel bars to pass through.

Images