CN213328639U - Bridge beam body pavement surface layer continuous structure form - Google Patents
Bridge beam body pavement surface layer continuous structure form Download PDFInfo
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- CN213328639U CN213328639U CN202021506758.XU CN202021506758U CN213328639U CN 213328639 U CN213328639 U CN 213328639U CN 202021506758 U CN202021506758 U CN 202021506758U CN 213328639 U CN213328639 U CN 213328639U
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Abstract
The utility model discloses a bridge roof beam body surface course continuous structure form of mating formation relates to engineering construction technical field. The bridge comprises a main beam body, a beam end gap and a bridge deck pavement; flexible waterproof materials are filled at the top of the gap at the beam end; bridge deck continuous steel bar net sheets are arranged in the bridge deck pavement at the joint of the two main girder bodies; the bridge deck continuous steel bar net piece comprises transverse bridge steel bars and longitudinal bridge steel bars; the two longitudinal bridges are arranged in a cross way after being bent towards the reinforcing steel bars. The utility model discloses a longitudinal bridge is to reinforcing bar buckle alternately in both ends beam-ends gap position department for longitudinal bridge can adapt to bridge roof beam body longitudinal bridge to free stretch and free bending to reinforcing bar in beam-ends gap position department, and longitudinal bridge is to the shear force that bears gap position department that can be fine after the reinforcing bar is buckled to the reinforcing bar simultaneously.
Description
Technical Field
The utility model relates to an engineering construction technical field, it is a bridge roof beam body surface course continuous structure form that mats formation that says so more specifically.
Background
The bridge expansion joint is exposed in the external environment for a long time, not only directly bears the load of vehicles and pedestrians, but also is damaged by natural environments such as wind, sunshine, dust, rainwater, snowfall and the like for a long time, belongs to wearing parts, is usually required to be replaced after being used for ten years, and is usually required to limit bridge deck traffic during operation and replacement. Even if the expansion joint of normal use, when the vehicle was gone, often caused the car of jumping, was the main component that influences driving comfort, consequently should set up the expansion joint as few as possible on the bridge. The long span bridge often sets up the expansion joint in order to adapt to the flexible deformation of the bridge roof beam body at every beam-ends because the flexible needs of the bridge roof beam body, but the often span of simply supported girder bridge is less, if every beam-ends all set up the expansion joint then the expansion joint sets up too densely, not only influences bridge driving comfort greatly, and a large amount of expansion joints in later stage need be maintained and the change expense is also higher, and a large amount of expansion joint change also easily cause the influence to the vehicle is current.
Therefore, a simply supported girder bridge is not generally provided with expansion joints at each girder end, a plurality of girder ends are usually in a continuous mode of a bridge girder pavement surface layer, the bridge girder pavement surface layer is continuously provided with a plurality of modes, but generally has a common point, a layer of reinforcing mesh is directly additionally arranged to improve the continuous stress performance of the bridge deck, but the reinforcing mesh is directly additionally arranged, longitudinal reinforcing steel bars along the girder body can often prevent the free expansion and contraction of the girder body and the free rotation angle of the girder body at the pier top of a pier, so that additional internal force is generated, the additional internal force is repeatedly generated for a long time, and the fatigue damage at the continuous position of the bridge girder pavement surface layer is easily caused. After the pavement surface layer is damaged, not only the maintenance and repair engineering cost is higher, but also the bridge deck pavement maintenance and repair usually needs to limit the passing of vehicles and pedestrians on the bridge deck, so that the inconvenience is brought to the vehicles and the pedestrians. Repeated maintenance and repair of the bridge deck pavement surface layer can cause great waste and environmental pollution and also bring adverse social effects.
Therefore, it is necessary to provide a continuous construction form of the bridge beam pavement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcomings of the background technology and providing a continuous structure form of a bridge beam body pavement surface layer.
In order to realize the purpose, the technical scheme of the utility model is that: bridge beam body pavement surface course continuous structure form, its characterized in that: the bridge deck pavement structure comprises main beam bodies, beam end gaps positioned between the two main beam bodies and bridge deck pavement positioned on the main beam bodies; flexible waterproof materials are filled at the top of the beam end gap; bridge deck continuous steel bar meshes are arranged in the bridge deck pavement at the joint of the two main girder bodies; the bridge deck continuous steel bar mesh comprises transverse bridge-direction steel bars and longitudinal bridge-direction steel bars; the two longitudinal bridges are bent towards the reinforcing steel bars and then are arranged in a crossed mode, and the crossed position is located above the gap of the beam end; the transverse bridge-direction reinforcing steel bars are positioned between the two longitudinal bridge-direction reinforcing steel bars.
In the technical scheme, waterproof asphalt is arranged between the flexible waterproof material and the girder body.
In the technical scheme, a reinforcing mesh is arranged above the longitudinal bridge direction reinforcing steel bars in the bridge deck pavement.
In the technical scheme, the bridge deck is provided with gaps, and asphalt is poured into the gaps.
In the above technical solution, the intersection of the two longitudinal bridge-direction reinforcing steel bars is a cross shape.
Compared with the prior art, the utility model has the advantages of it is following:
1) the longitudinal bridge directional reinforcing steel bars of the utility model are bent and crossed at the gap positions of the beam ends at the two ends, so that the longitudinal bridge directional reinforcing steel bars can adapt to the free stretching and free bending of the longitudinal bridge direction of the bridge body at the gap position of the beam ends, and the shearing force at the gap position can be well borne after the longitudinal bridge directional reinforcing steel bars are bent and inclined;
2) the utility model discloses cut the gap on the bridge deck pavement, pour pitch in the gap, solve the fatigue failure problem of gap position department, so gap department bridge deck pavement continuous construction is more durable, more not fragile, has reduced the bridge floor and has relapsed prosthetic maintenance cost, has also reduced the influence to bridge floor driving and pedestrian simultaneously.
3) The utility model discloses do not increase any loaded down with trivial details constructional measure, do not increase the engineering expense, the construction is also comparatively simple.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the prior art.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be apparent and readily appreciated by the description.
With reference to the accompanying drawings: bridge beam body pavement surface course continuous structure form, its characterized in that: the bridge deck comprises main girder bodies 1, girder end gaps 11 positioned between the two main girder bodies 1, and bridge deck pavement 2 positioned on the main girder bodies 1; the top of the beam end gap 11 is filled with a flexible waterproof material 3; a bridge deck continuous steel bar net piece 21 is arranged in the bridge deck pavement 2 at the joint of the two main girder bodies 1; the bridge deck continuous steel bar mesh 21 comprises transverse bridge-direction steel bars 211 and longitudinal bridge-direction steel bars 212; the two longitudinal bridge-direction reinforcing steel bars 212 are bent and then arranged in a crossed mode, and the crossed position is located above the beam end gap 11; the transverse bridging reinforcing steel bar 211 is positioned between two longitudinal bridging reinforcing steel bars 212.
An inner layer steel bar mesh 22 is arranged above the longitudinal bridge direction steel bars 212 in the bridge deck pavement 2.
The bridge deck pavement 2 is provided with a gap, and asphalt 4 is poured into the gap.
The intersection of the two longitudinal bridge reinforcements 212 is in a cross shape.
The construction method of the bridge beam body pavement surface layer continuous structure form is characterized by comprising the following steps of:
step 1: firstly, erecting girder bodies 1 at two ends, reserving a girder end gap 11 which is suitable for the expansion and contraction of the girder bodies in the middle of the girder bodies at the two ends, smearing a layer of waterproof asphalt 12 on the top surface of the girder end of the girder body 1, and filling a flexible waterproof material 3 in the girder end gap 11;
step 2: bending the longitudinal bridge-direction steel bars 212 to enable the longitudinal bridge-direction steel bars 212 to be provided with bending sections, arranging the longitudinal bridge-direction steel bars 212 with the bending sections in a crossed mode to form a crossed cross shape, and paving the transverse bridge-direction steel bars 211 and the steel bar meshes 22;
and step 3: after all the reinforcing steel bars are bound, pouring a bridge deck pavement 2, pouring gaps with the depth and width of 2cm on the bridge deck pavement 2, and pouring asphalt 4 into the gaps to adapt to the expansion deformation of the bridge deck and avoid cracks of the bridge deck; and finishing construction.
In practical use, fig. 2 is a schematic structural diagram of the prior art; the longitudinal direction of the girder body 1 of the girder of the invention can freely stretch and retract, thus releasing the axial tension and pressure generated by the continuous reinforcing mesh 21 of the traditional bridge deck at the gap of the girder body; the girder body 1 of the invention is freely bent at the pier top of the pier, and the bending moment generated by the continuous reinforcing mesh 21 of the traditional bridge deck at the gap of the girder body is released; the invention changes the straight longitudinal bridge-direction reinforcing steel bars 212 into oblique reinforcing steel bars at the gap position, and can well bear the shearing force generated by bridge deck vehicles and bridge deck pedestrians at the gap position.
Other parts not described belong to the prior art.
Claims (5)
1. Bridge beam body pavement surface course continuous structure form, its characterized in that: the bridge deck pavement structure comprises main beam bodies (1), a beam end gap (11) between the two main beam bodies (1), and a bridge deck pavement (2) positioned on the main beam bodies (1); flexible waterproof materials (3) are filled at the tops of the beam end gaps (11); a bridge deck continuous steel bar net piece (21) is arranged in the bridge deck pavement (2) at the joint of the two main girder bodies (1); the bridge deck continuous steel bar mesh (21) comprises transverse bridge-direction steel bars (211) and longitudinal bridge-direction steel bars (212); the two longitudinal bridge-direction reinforcing steel bars (212) are bent and then are arranged in a crossed mode, and the crossed position is located above the beam end gap (11); the transverse bridge-direction reinforcing steel bars (211) are positioned between the two longitudinal bridge-direction reinforcing steel bars (212).
2. The continuous construction form of the bridge girder pavement layer according to claim 1, which is characterized in that: waterproof asphalt (12) is arranged between the flexible waterproof material (3) and the girder body (1).
3. The continuous construction form of the bridge girder pavement layer according to claim 1, which is characterized in that: and a reinforcing mesh (22) is arranged above the longitudinal bridge-direction reinforcing steel bars (212) in the bridge deck pavement (2).
4. The continuous construction form of the bridge girder pavement layer according to claim 3, wherein: the bridge deck pavement (2) is provided with gaps, and asphalt (4) is poured into the gaps.
5. The continuous construction form of the bridge girder pavement layer according to claim 4, wherein: the cross position of the two longitudinal bridge-direction reinforcing steel bars (212) is in a cross shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021506758.XU CN213328639U (en) | 2020-07-27 | 2020-07-27 | Bridge beam body pavement surface layer continuous structure form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021506758.XU CN213328639U (en) | 2020-07-27 | 2020-07-27 | Bridge beam body pavement surface layer continuous structure form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213328639U true CN213328639U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021506758.XU Active CN213328639U (en) | 2020-07-27 | 2020-07-27 | Bridge beam body pavement surface layer continuous structure form |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213328639U (en) |
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2020
- 2020-07-27 CN CN202021506758.XU patent/CN213328639U/en active Active
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