CN211522863U - Wet seam structure of bridge - Google Patents
Wet seam structure of bridge Download PDFInfo
- Publication number
- CN211522863U CN211522863U CN201922248837.9U CN201922248837U CN211522863U CN 211522863 U CN211522863 U CN 211522863U CN 201922248837 U CN201922248837 U CN 201922248837U CN 211522863 U CN211522863 U CN 211522863U
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- CN
- China
- Prior art keywords
- wet
- steel
- concrete block
- bridge
- width
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004567 concrete Substances 0.000 claims abstract description 71
- 210000001503 joint Anatomy 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 95
- 239000010959 steel Substances 0.000 claims description 95
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 238000010276 construction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 description 7
- 238000010008 shearing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241000264877 Hippospongia communis Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Images
Abstract
The utility model discloses a wet seam structure of bridge belongs to the technical field of bridge construction, and its technical scheme main points are including pouring the concrete piece in the wet seam between two butt joint roof beams bodies, the multilayer echelonment structure that the both sides of concrete piece and roof beam body contact set up for the symmetry, and the width on concrete piece top is greater than the width of its bottom, reaches the effect that improves wet seam department structural strength.
Description
Technical Field
The utility model relates to a technical field of bridge construction, in particular to wet seam structure of bridge.
Background
The wet joint refers to the joint that prestressed concrete beam bodies are prefabricated in blocks, cantilevers are spliced into long-span continuous beams, and the beam bodies are connected into a whole by adopting cast-in-place concrete.
The existing Chinese patent with reference to publication number CN204509990U discloses a bridge wet joint construction template, which comprises a main steel plate and a supporting steel plate, wherein the supporting steel plate is respectively embedded at the bottom sides of the ends of two butted bridges in a cantilever manner, the main steel plate is arranged at the bottom of a wet joint between the two butted bridges, the two ends of the main steel plate are lapped with the connecting ends of the supporting steel plate extending to the outer sides of the ends of the bridges, and concrete for filling the wet joint is poured on the main steel plate.
The above prior art solutions have the following drawbacks: because the wet joint construction is to pour concrete by taking two butted beam bodies as templates, but the side parts of the beam bodies are vertical planes, the defects of slurry leakage, honeycombs, pitted surfaces and the like are easy to occur when the beam bodies are directly poured as the templates, and the structural strength of the wet joint is seriously influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wet seam structure of bridge reaches the effect that improves wet seam crossing structural strength.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a wet seam structure of bridge, is including pouring the concrete piece in the wet seam between two butt joint roof beams bodies, and the both sides that concrete piece and roof beam body contacted are the multilayer echelonment structure of symmetry setting, and the width on concrete piece top is greater than the width of its bottom.
By adopting the technical scheme, the contact surface of the concrete block and the beam body is of a multi-layer ladder-shaped structure, so that the contact area between the concrete and the beam body is increased, and the connection strength between the concrete block and the beam body is improved. The width of the top end of the concrete block is larger than that of the bottom end of the concrete block, so that the concrete block can be lapped on the beam bodies on two sides, and the shearing resistance of the wet joint is enhanced.
The utility model discloses further set up to: the bottom surface of concrete piece is fixed and is provided with the horizontally steel sheet, and the width of steel sheet is greater than the width of concrete piece bottom, steel sheet and the equal fixed connection of two butt joint roof beam bodies.
Through adopting above-mentioned technical scheme, set up the steel sheet in concrete piece below, can play the supporting role to the concrete piece, improve the compressive strength of concrete piece, strengthened the structural strength of wet seam.
The utility model discloses further set up to: two ends of the steel plate in the width direction are respectively inserted into the two butt-joint beam bodies.
Through adopting above-mentioned technical scheme, steel sheet width direction's both ends insert respectively in two butt joint's the roof beam body, have increased the area of contact between steel sheet and the roof beam body, make the connection between steel sheet and the roof beam body inseparabler, have further improved the compressive strength of concrete piece, have strengthened the joint strength of roof beam body and concrete piece.
The utility model discloses further set up to: the width of steel sheet is not less than the width on concrete block top, and the steel sheet top surface is fixed and is provided with a plurality of vertical perpendicular reinforcing bars, and the top of perpendicular reinforcing bar inserts respectively in every layer of ladder of concrete block.
Through adopting above-mentioned technical scheme, set up perpendicular reinforcing bar, make in perpendicular reinforcing bar passes the roof beam body and inserts the concrete to improve the joint strength between steel sheet, the roof beam body and the concrete piece, avoided using for a long time the back roof beam body and appear becoming flexible between steel sheet, the concrete piece.
The utility model discloses further set up to: the top end of the vertical steel bar is fixedly provided with a horizontal transverse steel bar, and two ends of the transverse steel bar are respectively inserted into the beam body and the concrete block.
Through adopting above-mentioned technical scheme, set up the transverse reinforcement, further improved the joint strength between the roof beam body and the concrete piece, strengthened the shear capacity of concrete piece, prevent to produce great crackle even fracture when the concrete piece atress is too big.
The utility model discloses further set up to: the vertical steel bars on two sides of the width direction of the steel plate are symmetrically arranged, and the transverse steel bars on the two symmetrically arranged vertical steel bars are fixedly connected.
Through adopting above-mentioned technical scheme, the horizontal reinforcement fixed connection on two perpendicular reinforcing bars that the steel sheet bilateral symmetry set up makes the horizontal reinforcement connect two butt joint roof beam bodies, has improved the joint strength between two butt joint roof beam bodies to the structural strength of wet seam has been improved.
The utility model discloses further set up to: the length of the transverse steel bar is greater than the width of the steel plate.
Through adopting above-mentioned technical scheme, the length of horizontal bar is greater than the length of steel sheet, avoids horizontal bar to insert the internal length of roof beam short excessively, has guaranteed the joint strength between two roof beam bodies and the concrete piece, makes wet seam have sufficient structural strength.
The utility model discloses further set up to: the steel plate, the vertical steel bars and the transverse steel bars are respectively embedded between the two butt-joint beam bodies.
Through adopting above-mentioned technical scheme, during the construction, earlier with steel sheet, perpendicular reinforcing bar and horizontal bar pre-buried between two butt joint roof beam bodies, regard two roof beam bodies and the steel sheet of butt joint as template concreting piece again, not only make the work progress of wet seam more convenient, make steel sheet, roof beam body, horizontal bar, perpendicular reinforcing bar and concrete piece connect as a whole moreover, improved the structural strength of wet seam.
To sum up, the utility model discloses a beneficial technological effect does:
1. the side face of the concrete block, which is in contact with the two butted beam bodies, is arranged into a multilayer ladder shape, so that the contact area between the concrete and the beam bodies is increased, the connection strength between the concrete block and the beam bodies is improved, and the shearing resistance of a wet joint is enhanced;
2. the steel plate is embedded between the two butted beam bodies, so that the concrete block can be supported, the compressive strength of the concrete block is improved, and the steel plate, the beam bodies and the concrete block are connected into a whole, so that the structural strength of a wet joint is improved;
3. through setting up horizontal reinforcement and vertical reinforcement, improved the joint strength between two butt joint roof beam bodies, the shear resistance of reinforcing concrete piece to the structural strength of wet seam has further been improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a sectional view for showing a lateral reinforcement and a vertical reinforcement;
fig. 3 is a schematic structural diagram for showing the distribution of the transverse bars and the vertical bars.
In the figure, 1, a beam body; 2. a concrete block; 3. a steel plate; 4. erecting steel bars; 5. and (5) transverse reinforcing steel bars.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, a wet joint structure of a bridge includes a steel plate 3 pre-embedded between two abutting beam bodies 1, and a concrete block 2 poured between the two abutting beam bodies 1 and the steel plate 3.
Referring to fig. 2, the length direction of the concrete block 2 is the same as the length direction of the wet joint between the two butted beam bodies 1, the length of the concrete block 2 is the same as the length of the wet joint, two side surfaces of the concrete block 2 contacting the beam bodies 1 are of a multilayer ladder-shaped structure which is symmetrically arranged, the width of the top end of the concrete block 2 is larger than that of the bottom end thereof, and the top surface of the concrete block 2 is flush with the top surface of the beam body 1. The steel plate 3 is horizontally arranged below the concrete block 2, the length direction of the steel plate 3 is the same as that of the concrete block 2, the length of the steel plate 3 is the same as that of the concrete block 2, the bottom surface of the steel plate 3 is higher than that of the beam body 1, the width of the steel plate 3 is larger than that of the top end of the concrete block 2, and two ends of the steel plate 3 in the width direction are respectively inserted into the two butt-jointed beam bodies 1.
During construction, steel plate 3 is pre-buried earlier, the template is built again, and pour two butt joint roof beam bodies 1, and make the side that two butt joint roof beam bodies 1 are close to each other be the multilayer echelonment, make steel plate 3 connect between two butt joint roof beam bodies 1, thereby the joint strength between two butt joint roof beam bodies 1 has been improved, then two roof beam bodies 1 and the steel plate 3 that will dock are as the template, and pour concrete piece 2 between two butt joint roof beam bodies 1 and steel plate 3, not only make the work progress of wet joint more convenient, and the shearing resistance of concrete piece 2 has been strengthened, make steel plate 3, roof beam body 1 and concrete piece 2 connect as a whole, thereby the structural strength of wet joint has been improved.
Referring to fig. 2 and 3, the top surface of the steel plate 3 is fixedly provided with a plurality of vertical steel bars 4, the vertical steel bars 4 are symmetrically arranged along the width direction of the steel plate 3, the heights of the vertical steel bars 4 are different, and the vertical steel bars 4 penetrate through the beam body 1 and the top ends of the vertical steel bars 4 and are respectively inserted into each layer of ladder of the concrete block 2. The top of erecting reinforcing bar 4 is fixed and is provided with horizontally horizontal reinforcing bar 5, and horizontal reinforcing bar 5's length is greater than steel sheet 3's width, and horizontal reinforcing bar 5 and two perpendicular reinforcing bar 4 equal fixed connection who sets up along steel sheet 3's width direction symmetry, horizontal reinforcing bar 5 pass every layer of ladder of concrete block 2, and the both ends of horizontal reinforcing bar 5 insert respectively two butt joint roof beam bodies 1 in.
During construction, vertical steel bars 4 and transverse steel bars 5 are welded on the pre-buried steel plates 3, then the beam body 1 and the concrete block 2 are poured in sequence, the compressive strength of the concrete block 2 is improved, the connection among the beam body 1, the concrete block 2 and the steel plates 3 is more compact and firm, and the structural strength of a wet joint is further improved.
The implementation principle of the embodiment is as follows: during construction, the steel plate 3 is pre-embedded firstly, the vertical steel bars 4 and the transverse steel bars 5 are welded on the pre-embedded steel plate 3, the template is built, the two butt-joint beam bodies 1 are poured, the side faces, close to each other, of the two butt-joint beam bodies 1 are in a multilayer ladder shape, the two butt-joint beam bodies 1 and the steel plate 3 serve as the template, the concrete block 2 is poured between the two butt-joint beam bodies 1 and the steel plate 3, the compressive strength and the shear strength of the concrete block 2 are improved, the beam bodies 1, the concrete block 2 and the steel plate 3 are connected tightly, and the structural strength of a wet joint is improved.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a wet seam structure of bridge, is including pouring concrete block (2) in the wet seam between two butt joint roof beam bodies (1), its characterized in that: the two sides of the concrete block (2) in contact with the beam body (1) are of a multilayer ladder-shaped structure which is symmetrically arranged, and the width of the top end of the concrete block (2) is larger than that of the bottom end of the concrete block.
2. A bridge wet joint structure according to claim 1, wherein: the bottom surface of concrete piece (2) is fixed and is provided with horizontally steel sheet (3), and the width of steel sheet (3) is greater than the width of concrete piece (2) bottom, steel sheet (3) and the equal fixed connection of two butt joint roof beam bodies (1).
3. A bridge wet joint structure according to claim 2, wherein: and two ends of the steel plate (3) in the width direction are respectively inserted into the two butt-joint beam bodies (1).
4. A bridge wet joint structure according to claim 2, wherein: the width of steel sheet (3) is not less than the width on concrete block (2) top, and steel sheet (3) top surface is fixed and is provided with a plurality of vertical perpendicular reinforcing bars (4), and inserts respectively in every layer of ladder of concrete block (2) the top of perpendicular reinforcing bar (4).
5. The bridge wet joint structure according to claim 4, wherein: the top end of the vertical steel bar (4) is fixedly provided with a horizontal transverse steel bar (5), and two ends of the transverse steel bar (5) are respectively inserted into the beam body (1) and the concrete block (2).
6. The wet bridge joint structure of claim 5, wherein: the steel plate (3) is characterized in that the vertical steel bars (4) on two sides of the width direction of the steel plate (3) are symmetrically arranged, and the transverse steel bars (5) on the two symmetrically arranged vertical steel bars (4) are fixedly connected.
7. The wet bridge joint structure of claim 5, wherein: the length of the transverse steel bar (5) is greater than the width of the steel plate (3).
8. The wet bridge joint structure of claim 5, wherein: the steel plate (3), the vertical steel bar (4) and the transverse steel bar (5) are respectively embedded between the two butt-joint beam bodies (1), and the vertical steel bar (4) and the transverse steel bar (5) are embedded in the steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248837.9U CN211522863U (en) | 2019-12-16 | 2019-12-16 | Wet seam structure of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922248837.9U CN211522863U (en) | 2019-12-16 | 2019-12-16 | Wet seam structure of bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211522863U true CN211522863U (en) | 2020-09-18 |
Family
ID=72465579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922248837.9U Expired - Fee Related CN211522863U (en) | 2019-12-16 | 2019-12-16 | Wet seam structure of bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211522863U (en) |
-
2019
- 2019-12-16 CN CN201922248837.9U patent/CN211522863U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200918 |