CN111535173A - Bridge wet joint connecting structure and connecting method - Google Patents
Bridge wet joint connecting structure and connecting method Download PDFInfo
- Publication number
- CN111535173A CN111535173A CN202010392702.4A CN202010392702A CN111535173A CN 111535173 A CN111535173 A CN 111535173A CN 202010392702 A CN202010392702 A CN 202010392702A CN 111535173 A CN111535173 A CN 111535173A
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- China
- Prior art keywords
- steel bar
- sleeve
- beam plate
- reinforcing steel
- grouting
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 58
- 239000011440 grout Substances 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000009415 formwork Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 description 8
- 238000010276 construction Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge wet joint connecting structure, and belongs to the technical field of bridge connection. The bridge wet joint connecting structure comprises a first prefabricated beam plate and a second prefabricated beam plate, the two ends of the first beam plate and the two ends of the second beam plate are erected above the cover beam, a first reinforcing steel bar is arranged inside the first beam plate, and a second reinforcing steel bar is arranged inside the second beam plate. The first reinforcing steel bar at one end of the beam slab is connected with the second reinforcing steel bar at one end of the beam slab through a sleeve, the first reinforcing steel bar and the second reinforcing steel bar are inserted into the sleeve from two ends of the sleeve respectively and are connected and fixed through grouting materials, and a sealing ring is arranged between the second reinforcing steel bar and the sleeve. And the side walls of the two ends of the sleeve are respectively provided with a grouting hole and a grout outlet. The beam slab I, the beam slab II, the sleeve, the reinforcing steel bar I, the reinforcing steel bar II and the cover beam are connected through a cast-in-place connecting section. The invention also discloses a connecting method of the bridge wet joint connecting structure. By adopting the bridge wet joint connecting structure and the bridge wet joint connecting method, the problem of low connecting strength of the existing beam-slab wet joint can be solved.
Description
Technical Field
The invention belongs to the technical field of bridge connection, and particularly relates to a bridge wet joint connecting structure and a bridge wet joint connecting method.
Background
With the development of building construction technology and social economy, the construction field is pursuing green, industrialization and industrialization. The prefabricated building can be prefabricated in a prefabricated field, is less interfered by the surrounding outside, is prefabricated in a centralized way in a factory or on the spot and then is transported to the spot for assembly, so that the working efficiency is higher, and the production is safe and convenient. In the existing bridge construction process, beam plates are connected together by adopting dry joints or wet joints, the wet joints are used for connecting adjacent beam plates together in a cast-in-place mode, and the connection strength of the existing wet joint structure is relatively low.
Disclosure of Invention
The invention aims to provide a bridge wet joint connecting structure and a bridge wet joint connecting method, and solves the problem that the existing beam-slab wet joint is low in connecting strength.
In order to achieve the purpose, the invention provides a bridge wet joint connecting structure which comprises a first prefabricated beam plate and a second prefabricated beam plate, wherein two ends of the first beam plate and two ends of the second beam plate are both erected above cover beams, a first embedded steel bar is arranged inside the first beam plate, two ends of the first steel bar extend out of the first beam plate, a second embedded steel bar is arranged inside the second beam plate, and two ends of the second steel bar extend out of the second beam plate;
the first reinforcing steel bar at one end of the first beam plate close to the second beam plate is connected with the second reinforcing steel bar at one end of the second beam plate close to the first beam plate through a sleeve, internal threads are arranged on the inner surface of one end of the sleeve, and external threads matched with the internal threads of the sleeve are arranged at one end of the first reinforcing steel bar embedded in the first beam plate;
the first reinforcing steel bar and the second reinforcing steel bar are respectively inserted into the sleeve from two ends of the sleeve, the first reinforcing steel bar and the second reinforcing steel bar are fixedly connected through grouting material poured into the sleeve, and a sealing ring is arranged between the second reinforcing steel bar and the sleeve;
the side walls of two ends of the sleeve are respectively provided with a grouting hole and a grout outlet, the grouting hole is spliced with a grouting pipe, and the grout outlet is spliced with a grout outlet pipe;
the beam slab I, the beam slab II, the sleeve, the reinforcing steel bar I, the reinforcing steel bar II and the cover beam are connected through a cast-in-place connecting section.
Preferably, the inner surface of the sleeve is provided with a groove for improving the connection strength.
Preferably, the two ends of the outer surface of the sleeve are provided with annular anti-slip lines.
Preferably, conical clamping platforms are arranged on the outer surfaces of the grouting pipe and the grout outlet pipe, and clamping rings matched with the clamping platforms are arranged on the inner walls of the grouting hole and the grout outlet hole.
The connecting method of the bridge wet joint connecting structure comprises the following steps:
s1, prefabricating a first beam plate and a second beam plate in a factory or on site, wherein a first reinforcing steel bar is embedded in the first beam plate, and a second reinforcing steel bar is embedded in the second beam plate;
s2, hoisting the beam slab I above the cover beam, rotating the sleeve, inserting one end of the steel bar I into the sleeve, and enabling the grouting hole and the grout outlet of the sleeve to face upwards; hoisting a beam slab II, inserting a second reinforcing steel bar extending out of one end of the beam slab II into the other end of the sleeve, and hoisting one end of the beam slab II above the cover beam;
s3, inserting a grouting pipe at the grouting hole, inserting a grout outlet pipe at the grout outlet, connecting a grouting pump with the grouting pipe to grout the sleeve until grout flows out of the grout outlet, stopping grouting, and plugging by using a sealing head;
s4, erecting a formwork between the first beam plate and the second beam plate, pouring concrete at the joint between the first beam plate and the second beam plate to form a cast-in-place connecting section, and wrapping the sleeve inside the cast-in-place connecting section to complete the connection of the wet joint.
The bridge wet joint connecting structure and the connecting method have the beneficial effects that:
1. the beam slab I and the beam slab II are prefabricated in a factory or on site and then connected in an assembling mode, so that the time of site construction is shortened, and the working efficiency is improved.
2. The first embedded steel bar in the first beam plate and the second embedded steel bar in the second beam plate are firstly connected through the sleeve, grouting materials are filled in the sleeve, primary connection between the first beam plate and the second beam plate is achieved, and the connection strength between the first beam plate and the second beam plate is also improved.
3. The cast-in-place connecting section is formed by casting concrete at the connecting part between the first beam plate and the second beam plate, and the sleeve is wrapped inside the cast-in-place connecting section, so that the connecting strength between the first beam plate and the second beam plate is improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a wet bridge joint connection structure according to the present invention;
FIG. 2 is a schematic view of a sleeve structure of an embodiment of a wet bridge joint connection structure according to the present invention;
fig. 3 is a schematic structural view of a grouting pipe according to an embodiment of a wet joint connection structure of a bridge.
Reference numerals
1. A first beam plate; 2. a beam plate II; 3. reinforcing steel bars I; 4. reinforcing steel bars II; 5. a sleeve; 6. a groove; 7. anti-skid lines; 8. a seal ring; 9. grouting pipes; 10. a pulp outlet pipe; 11. clamping a platform; 12. a capping beam; 13. and (5) casting a connecting section in situ.
Detailed Description
Examples
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
Fig. 1 is a schematic structural view of an embodiment of a wet bridge joint connection structure of the present invention, fig. 2 is a schematic structural view of a sleeve of an embodiment of a wet bridge joint connection structure of the present invention, and fig. 3 is a schematic structural view of a grouting pipe of an embodiment of a wet bridge joint connection structure of the present invention. As shown in the figure, the bridge wet joint connecting structure comprises a first prefabricated beam plate 1 and a second prefabricated beam plate 2, wherein the first beam plate 1 and the second beam plate 2 are manufactured in a prefabricated mode, the construction period of site construction is shortened, and the working efficiency is improved. Both ends of the first beam plate 1 and the second beam plate 2 are erected above the cover beam 12, and the cover beam 12 has a supporting effect on the first beam plate 1 and the second beam plate 2. The inside of beam slab 1 is provided with pre-buried reinforcing bar 3, and beam slab 1 is stretched out at the both ends of reinforcing bar 3. The inside of beam slab two 2 is provided with two pre-buried reinforcing bars 4, and the both ends of two reinforcing bars 4 stretch out beam slab two 2. The sum of the length of the first reinforcing steel bar 3 extending out of the first beam plate 1 and the length of the second reinforcing steel bar 4 extending out of the second beam plate 2 is smaller than the distance between the first beam plate 1 and the second beam plate 2, and the first reinforcing steel bar 3 and the second reinforcing steel bar 4 are in one-to-one correspondence and are located on the same straight line.
The reinforcing steel bar 3 of one end of the beam slab 1 close to the beam slab 2 is connected with the reinforcing steel bar 4 of one end of the beam slab 2 close to the beam slab 1 through the sleeve 5, the sleeve 5 is formed by adopting nodular cast iron in an integrated casting mode, and the production cost is low. Be provided with the internal thread on the one end internal surface of sleeve 5, the one end of pre-buried reinforcing bar 3 in beam slab 1 is provided with the external screw thread with sleeve 5's internal thread looks adaptation, and reinforcing bar 3 passes through screw thread fixed connection with sleeve 5. The first reinforcing steel bar 3 and the second reinforcing steel bar 4 are respectively inserted into the sleeve 5 from two ends of the sleeve 5, and the sleeve 5, the first reinforcing steel bar 3 and the second reinforcing steel bar 4 are fixedly connected together through grouting material poured into the sleeve 5. The outer surfaces of the first reinforcing steel bar 3 and the second reinforcing steel bar 4 are provided with ribs, so that the connection strength of the first reinforcing steel bar 3, the second reinforcing steel bar 4, the first beam plate 1, the second beam plate 2 and the sleeve 5 is improved. Be provided with the sealing washer 8 of rubber between two 4 and the sleeve 5 of reinforcing bar, sealing washer 8 card is established on 5 end of sleeve for seal the connection face between two 4 and the sleeve 5 of reinforcing bar.
The side walls of the two ends of the sleeve 5 are respectively provided with a grouting hole and a grout outlet, the grouting hole is spliced with a grouting pipe 9, and the grout outlet is spliced with a grout outlet pipe 10. The inner surface of the sleeve 5 is uniformly provided with an annular groove 6 for improving the connection strength, the groove 6 can increase the connection area between the concrete and the sleeve 5, and the connection strength of the sleeve 5 and the concrete is improved. The two ends of the outer surface of the sleeve 5 are provided with annular anti-skid grains 7, so that the connection strength between the sleeve 5 and the cast-in-place connecting section 13 is improved. The beam slab I, the beam slab II, the sleeve, the reinforcing steel bar I, the reinforcing steel bar II and the cover beam are connected through a cast-in-place connecting section 13.
The grouting pipe 9 and the grout outlet pipe 10 are rubber hoses, conical clamping platforms 11 are arranged on the outer surfaces of the grouting pipe 9 and the grout outlet pipe 10, and rectangular clamping rings matched with the clamping platforms 11 are arranged on the inner walls of the grouting holes and the grout outlet holes. The diameter of the maximum position of the clamping table 11 is slightly larger than the aperture of the grouting hole and the aperture of the grout outlet, so that the clamping table 11 is tightly contacted with the grouting hole and the grout outlet, and the clamping table 11 is clamped on the clamping ring to prevent the grouting pipe 9 and the grout outlet 10 from easily falling off from the grouting hole and the grout outlet.
The connecting method of the bridge wet joint connecting structure comprises the following steps:
s1, prefabricating a first beam plate 1 and a second beam plate 2 in a factory or on site, wherein a first reinforcing steel bar 3 is embedded in the first beam plate 1, and a second reinforcing steel bar 4 is embedded in the second beam plate 2.
S2, hoisting the beam slab I1 above the cover beam 12, rotating the sleeve 5, inserting one end of the steel bar I3 into the sleeve 5, and enabling the grouting hole and the grout outlet of the sleeve 5 to face upwards; and hoisting the second beam plate 2, inserting the second reinforcing steel bar 4 extending out of one end of the second beam plate 2 into the other end of the sleeve 5, and hoisting one end of the second beam plate 2 above the cover beam 12.
S3, inserting a grouting pipe 9 at the grouting hole, inserting a grout outlet pipe 10 at the grout outlet, connecting the grouting pipe with a grouting pump to grout in the sleeve until grout flows out of the grout outlet pipe 10, stopping grouting, plugging by using a sealing head, waiting for the grout in the sleeve 5 to solidify, completing the primary connection of the first reinforcing steel bar 3 and the second reinforcing steel bar 4, namely completing the primary connection of the first beam plate 1 and the second beam plate 2.
S4, erecting a formwork between the first beam plate 1 and the second beam plate 2, pouring concrete at the joint between the first beam plate 1 and the second beam plate 2 to form a cast-in-place connecting section 13, and wrapping the sleeve 5 inside the cast-in-place connecting section 13 to complete the connection of the wet joint. Each surface of the cast-in-place connecting section 13 is flush with the beam slab I and the beam slab II, and the regularity of the connecting position is improved.
Therefore, the bridge wet joint connecting structure and the bridge wet joint connecting method can solve the problem that the existing beam-slab wet joint is low in connecting strength.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a wet joint connection structure of bridge which characterized in that: the cover beam comprises a first prefabricated beam plate and a second prefabricated beam plate, wherein two ends of the first beam plate and two ends of the second beam plate are both erected above a cover beam, a first embedded steel bar is arranged inside the first beam plate, two ends of the first steel bar extend out of the first beam plate, a second embedded steel bar is arranged inside the second beam plate, and two ends of the second steel bar extend out of the second beam plate;
the first reinforcing steel bar at one end of the first beam plate close to the second beam plate is connected with the second reinforcing steel bar at one end of the second beam plate close to the first beam plate through a sleeve, internal threads are arranged on the inner surface of one end of the sleeve, and external threads matched with the internal threads of the sleeve are arranged at one end of the first reinforcing steel bar embedded in the first beam plate;
the first reinforcing steel bar and the second reinforcing steel bar are respectively inserted into the sleeve from two ends of the sleeve, the first reinforcing steel bar and the second reinforcing steel bar are fixedly connected through grouting material poured into the sleeve, and a sealing ring is arranged between the second reinforcing steel bar and the sleeve;
the side walls of two ends of the sleeve are respectively provided with a grouting hole and a grout outlet, the grouting hole is spliced with a grouting pipe, and the grout outlet is spliced with a grout outlet pipe;
the beam slab I, the beam slab II, the sleeve, the reinforcing steel bar I, the reinforcing steel bar II and the cover beam are connected through a cast-in-place connecting section.
2. A bridge wet joint connection structure according to claim 1, wherein: the inner surface of the sleeve is provided with a groove for improving the connection strength.
3. A bridge wet joint connection structure according to claim 1, wherein: and two ends of the outer surface of the sleeve are provided with annular anti-skid grains.
4. A bridge wet joint connection structure according to claim 1, wherein: the outer surfaces of the grouting pipe and the grout outlet pipe are respectively provided with a conical clamping table, and the inner walls of the grouting hole and the grout outlet hole are provided with clamping rings matched with the clamping tables.
5. The connecting method of a bridge wet joint connecting structure according to any one of claims 1 to 4, comprising the steps of:
s1, prefabricating a first beam plate and a second beam plate in a factory or on site, wherein a first reinforcing steel bar is embedded in the first beam plate, and a second reinforcing steel bar is embedded in the second beam plate;
s2, hoisting the beam slab I above the cover beam, rotating the sleeve, inserting one end of the steel bar I into the sleeve, and enabling the grouting hole and the grout outlet of the sleeve to face upwards; hoisting a beam slab II, inserting a second reinforcing steel bar extending out of one end of the beam slab II into the other end of the sleeve, and hoisting one end of the beam slab II above the cover beam;
s3, inserting a grouting pipe at the grouting hole, inserting a grout outlet pipe at the grout outlet, connecting a grouting pump with the grouting pipe to grout the sleeve until grout flows out of the grout outlet, stopping grouting, and plugging by using a sealing head;
s4, erecting a formwork between the first beam plate and the second beam plate, pouring concrete at the joint between the first beam plate and the second beam plate to form a cast-in-place connecting section, and wrapping the sleeve inside the cast-in-place connecting section to complete the connection of the wet joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392702.4A CN111535173A (en) | 2020-05-11 | 2020-05-11 | Bridge wet joint connecting structure and connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392702.4A CN111535173A (en) | 2020-05-11 | 2020-05-11 | Bridge wet joint connecting structure and connecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111535173A true CN111535173A (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010392702.4A Pending CN111535173A (en) | 2020-05-11 | 2020-05-11 | Bridge wet joint connecting structure and connecting method |
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| Country | Link |
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| CN (1) | CN111535173A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263099A (en) * | 2022-02-14 | 2022-04-01 | 广东工业大学 | Connecting sleeve for common steel bar and FRP (fiber reinforced plastic) bar |
-
2020
- 2020-05-11 CN CN202010392702.4A patent/CN111535173A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114263099A (en) * | 2022-02-14 | 2022-04-01 | 广东工业大学 | Connecting sleeve for common steel bar and FRP (fiber reinforced plastic) bar |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200814 |
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| WD01 | Invention patent application deemed withdrawn after publication |