CN211571380U

CN211571380U - Road bridge floor expansion joint structure of mating formation

Info

Publication number: CN211571380U
Application number: CN201922124116.7U
Authority: CN
Inventors: 孙高洋; 吕秀菊
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-09-25
Anticipated expiration: 2029-12-02

Abstract

The utility model relates to a bridge construction technical field especially relates to a road bridge deck expansion joint department structure of mating formation. The to-be-solved technical problem of the utility model is the loaded down with trivial details inconvenient maintenance of installation. In order to solve the technical problem, the utility model provides a road bridge floor expansion joint department structure of mating formation, including the concrete structure layer, the slider that the both ends at upper horizontal reinforcing bar layer top were equipped with can use the spout to remove as the spacing groove, and the other end on lower floor's horizontal reinforcing bar layer can slide in the inside in lower floor bearing groove, thereby this design can make bridge highway section whole gap between both ends can not too big influence traffic and bridge life-span when expend with heat and contract with cold, and this design makes its not have the life-span that expands with heat or contract with cold and can not hinder the traffic and also can not reduce bridge surface through the ground on two-layer reinforcing bar layer UNICOM both sides, and later stage convenient maintenance.

Description

Road bridge floor expansion joint structure of mating formation

Technical Field

The utility model relates to a bridge construction technical field specifically is a road bridge floor expansion joint department structure of mating formation.

Background

The bridge deck expansion joint of highway bridge fracture breakage phenomenon is very general, and when the vertical girder of bridge deck was discontinuous, the layer of mating formation of expansion joint department was under repeated action such as car load and temperature effect, and the roof beam tip warp the amount of deflection too big, arouses the concrete layer of mating formation of expansion joint department to produce great longitudinal tensile stress, causes the bridge deck pavement concrete fracture easily, and then arouses the bridge deck to appear the crack, thereby the damage leads to the bridge deck infiltration, influences the durability of bridge or even the structure safety of bridge. Aiming at cracking and damage at the expansion joint of the bridge deck of the highway bridge, the conventional maintenance method is to mill and plane and re-pave the asphalt concrete surface layer at present, but the method cannot completely cure the crack, and after the operation is carried out for a period of time, new cracks still appear on the asphalt concrete surface layer at the continuous joint.

The prior patent (for example CN2018221990255) solves the above problems, however, the patent still has the following problems: the structure is too simple, and the top bearing appears crooked, then wholly can't continue to use, and the installation is complicated, and follow-up maintenance is extremely complicated.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a road bridge floor expansion joint department structure of mating formation has solved the problem of the loaded down with trivial details inconvenient maintenance of installation.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a road bridge floor expansion joint department structure of mating formation, includes the concrete structure layer, the equal fixed mounting in bottom of two concrete structure layers has the girder, the top of two concrete structure layers is fixed mounting respectively and mixes mud road surface and right side mud road surface, the right side fixed mounting that the mud road surface was mixed in the left side has upper bearing groove A and bearing block, the left side fixed mounting that the mud road surface was mixed in the right side has upper bearing groove B and lower floor's bearing groove, the spout has all been seted up at the top of upper bearing groove B and upper bearing groove A inner wall, upper bearing groove B and the inside of upper bearing groove A have cup jointed upper horizontal reinforcing bar layer, the equal fixed mounting in both sides at the top of upper horizontal reinforcing bar layer has the slider, the slider is connected with the inner wall sliding of spout, the left side fixed mounting of bearing block has lower floor's horizontal reinforcing bar layer, the other end of the lower transverse reinforcing steel bar layer is sleeved inside the lower bearing groove.

Further preferably, the width of the upper layer of transverse reinforcing steel bar layer is the same as that of the lower layer of transverse reinforcing steel bar layer.

Further preferably, the left side soil mixing road and the right side soil mixing road are on the same parallel line, and the width of the left side soil mixing road and the width of the right side soil mixing road are the same.

Further preferably, the upper layer bearing groove a and the upper layer bearing groove B are located right above the bearing blocks and the lower layer bearing groove, and the upper layer transverse reinforcing steel bar layer is located right above the lower layer transverse reinforcing steel bar layer.

Further preferably, the width of the sliding groove is the same as the width of the sliding block.

Preferably, the thickness of the concrete structure layer is three-half of that of the left concrete pavement and that of the right concrete pavement, and the two concrete structure layers are on the same parallel line.

(III) advantageous effects

The utility model provides a road bridge floor expansion joint department structure of mating formation possesses following beneficial effect:

(1) when the concrete structure layer causes thermal expansion and cold contraction on the left side concrete pavement and the right side concrete pavement due to weather and other conditions, the concrete structure layers on two sides are close to each other when the concrete structure layer is hot, the upper transverse reinforcing steel layer can slide in the upper bearing groove A and the upper bearing groove B due to the fact that the polishing layer is plated on the surface of the upper transverse reinforcing steel layer, the sliding blocks arranged at two ends of the top of the upper transverse reinforcing steel layer can move by taking the sliding grooves as limiting grooves, the other end of the lower transverse reinforcing steel layer can slide in the lower bearing groove, the design can prevent the gap between two ends of the whole bridge section from being too large when the bridge section expands with heat and contracts with cold so as to influence the service life of the traffic and the bridge, and the design can prevent the traffic from being expanded with heat or contracted with cold through the ground on two sides communicated with the two reinforcing steel layers and can not obstruct the service life of the surface of the bridge, and the design and installation are simple, the later-stage maintenance is convenient, and the bridge deck connection can be more stable.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

fig. 2 is an enlarged view of the structure at a in the structure diagram 1 of the present invention.

In the figure: 1 concrete structure layer, 2 main beams, 3 left side concrete pavement, 4 upper layer transverse reinforcing steel layers, 5 lower layer transverse reinforcing steel layers, 6 lower layer bearing grooves, 7 upper layer bearing grooves B, 8 right side concrete pavement, 9 upper layer bearing grooves A, 10 bearing blocks, 11 sliding blocks and 12 sliding grooves.

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.

Referring to fig. 1-2, the present invention provides a technical solution: a pavement structure at an expansion joint of a bridge deck of a highway bridge comprises concrete structure layers 1, the thickness of each concrete structure layer 1 is three-half of that of a left concrete pavement 3 and a right concrete pavement 8, the two concrete structure layers 1 are arranged on the same parallel line, the structure layers on two sides can be more conveniently connected by the design, main beams 2 are fixedly arranged at the bottoms of the two concrete structure layers 1, the top parts of the two concrete structure layers 1 are respectively and fixedly provided with the left concrete pavement 3 and the right concrete pavement 8, the left concrete pavement 3 and the right concrete pavement 8 are arranged on the same parallel line, the widths of the left concrete pavement 3 and the right concrete pavement 8 are the same, the design can ensure that the bridge deck can be kept flush when expanded with heat and contracted with cold without easily causing failure, an upper bearing groove A9 and a bearing block 10 are fixedly arranged on the right side of the left concrete pavement 3, the design enables the bridge to be integrally constructed by double-layer support, and is firmer and safer, an upper layer bearing groove B7 and a lower layer bearing groove 6 are fixedly arranged on the left side of the right-side concrete pavement 8, sliding grooves 12 are respectively formed in the tops of the inner walls of an upper layer bearing groove B7 and an upper layer bearing groove A9, the upper layer bearing groove B7 and the upper layer bearing groove A9 are sleeved with the upper layer transverse reinforcing steel bar layer 4, the widths of the upper layer transverse reinforcing steel bar layer 4 and the lower layer transverse reinforcing steel bar layer 5 are the same, the design can enable the upper layer bearing groove A9 and the upper layer bearing groove B7 to move in parallel so as to relieve the harm caused by thermal expansion and cold contraction, the maintenance and the inspection are more convenient, sliding blocks 11 are fixedly arranged on two sides of the top of the upper layer transverse reinforcing steel bar layer 4, and the sliding blocks 11 are connected with the inner walls of the sliding grooves 12, and the width of spout 12 is the same with the width of slider 11, thereby this design can make it can carry out parallel translation and alleviate the harm that expend with heat and contract with cold and bring, and is more convenient when maintenance and inspection, and the left side fixed mounting of bearing block 10 has lower floor's horizontal reinforcing bar layer 5, and the other end of lower floor's horizontal reinforcing bar layer 5 cup joints in the inside of lower floor's bearing groove 6.

The working principle is as follows: when the concrete structure layer 1 causes the left side concrete pavement 3 and the right side concrete pavement 8 to expand with heat and contract with cold due to weather and other conditions, when the concrete structure layer 1 is hot, the concrete structure layers 1 on two sides are close to each other, the upper layer transverse reinforcing steel bar layer 4 slides inside the upper layer bearing groove A9 and the upper layer bearing groove B7, the sliding blocks 11 arranged at two ends of the top of the upper layer transverse reinforcing steel bar layer 4 can move by taking the sliding grooves 12 as limiting grooves, and the other end of the lower layer transverse reinforcing steel bar layer 5 can slide inside the lower layer bearing groove 6.

Claims

1. The utility model provides a road bridge floor expansion joint department structure of mating formation, includes concrete structure layer (1), its characterized in that: the concrete structure layer comprises two concrete structure layers (1), wherein the bottom of each concrete structure layer is fixedly provided with a main beam (2), the top of each concrete structure layer (1) is fixedly provided with a left-side concrete pavement (3) and a right-side concrete pavement (8), the right-side of the left-side concrete pavement (3) is fixedly provided with an upper bearing groove A (9) and a bearing block (10), the left-side of the right-side concrete pavement (8) is fixedly provided with an upper bearing groove B (7) and a lower bearing groove (6), the tops of the upper bearing groove B (7) and the upper bearing groove A (9) are both provided with a sliding groove (12), the insides of the upper bearing groove B (7) and the upper bearing groove A (9) are sleeved with an upper transverse reinforcing steel bar layer (4), the two sides of the top of the upper transverse reinforcing steel bar layer (4) are fixedly provided with sliding blocks (11), and the sliding blocks (11) are connected with the sliding grooves (12), the left side fixed mounting of bearing block (10) has lower floor's horizontal reinforcing bar layer (5) in concrete structure layer (1), the other end of lower floor's horizontal reinforcing bar layer (5) cup joints the inside in lower floor's bearing groove (6).

2. The pavement structure at the expansion joint of the bridge deck of the highway bridge according to claim 1, wherein: the width of the upper layer of transverse reinforcing steel bar layer (4) is the same as that of the lower layer of transverse reinforcing steel bar layer (5).

3. The pavement structure at the expansion joint of the bridge deck of the highway bridge according to claim 1, wherein: the left side concrete pavement (3) and the right side concrete pavement (8) are on the same parallel line, and the width of the left side concrete pavement (3) is the same as that of the right side concrete pavement (8).

4. The pavement structure at the expansion joint of the bridge deck of the highway bridge according to claim 1, wherein: the upper layer bearing groove A (9) and the upper layer bearing groove B (7) are positioned right above the bearing block (10) and the lower layer bearing groove (6), and the upper layer transverse reinforcing steel bar layer (4) is positioned right above the lower layer transverse reinforcing steel bar layer (5).

5. The pavement structure at the expansion joint of the bridge deck of the highway bridge according to claim 1, wherein: the width of the sliding groove (12) is the same as that of the sliding block (11).

6. The pavement structure at the expansion joint of the bridge deck of the highway bridge according to claim 1, wherein: the thickness of the concrete structure layer (1) is three-thirds of the left concrete pavement (3) and the right concrete pavement (8), and the two concrete structure layers (1) are on the same parallel line.