CN217923064U - Expansion device and bridge - Google Patents
Expansion device and bridge Download PDFInfo
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- CN217923064U CN217923064U CN202222202149.0U CN202222202149U CN217923064U CN 217923064 U CN217923064 U CN 217923064U CN 202222202149 U CN202222202149 U CN 202222202149U CN 217923064 U CN217923064 U CN 217923064U
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Abstract
The utility model discloses a telescopic device, which relates to the technical field of highway bridge structures and comprises a filling layer, a sealing element, two supporting connecting pieces and two pre-embedded components, wherein the two pre-embedded components are pre-embedded into a first beam body and a second beam body, and the upper surfaces of the two pre-embedded components are not lower than the upper surfaces of the first beam body and the second beam body; the two supporting connecting pieces are arranged in the two mounting grooves, and the lower ends of the two supporting connecting pieces are fixedly connected with the upper surfaces of the two embedded components; the filling layer is filled in the mounting groove and is fixedly connected with the supporting connecting piece, and the filling layer is also fixedly connected with the paving layer; the sealing element is positioned between the two supporting connecting pieces, and two side ends of the sealing element in the width direction are respectively and fixedly connected with two opposite side surfaces of the two supporting connecting pieces in a sealing manner. The utility model discloses still provide the bridge including above-mentioned telescoping device. The utility model provides a telescoping device and bridge, telescoping device are convenient for install, and telescoping device's pre-buried subassembly can promote roof beam body intensity.
Description
Technical Field
The utility model belongs to the technical field of public road bridge roof beam structure technique and specifically relates to a telescoping device and bridge are related to.
Background
In order to meet the requirement of bridge deck deformation, a telescopic device is usually arranged between two beam ends, between the beam ends and a bridge abutment or at the hinged position of a bridge; the expansion device is an important component in the bridge structure, and is adapted to structural deformation on a bridge span under the influence of factors such as temperature change, concrete shrinkage, live load effect, settlement and creep of bridge abutments and the like, and stable traffic of vehicles on the road surface is ensured.
The existing bridge deck usually comprises a pavement layer and a beam body from outside to inside, and the installation of a telescopic device is generally carried out after the pavement is paved, and the slotting is carried out at the later stage, so the slotting work after pavement is particularly critical; the mounting groove of current telescoping device sets up usually on layer and the roof beam body of mating formation, opens out the mounting groove when installation telescoping device, but slotted in-process because be provided with the pre-buried muscle in the roof beam body, causes destruction to the pre-buried muscle in the roof beam body easily, causes follow-up repair work load, and the structural strength of the influence roof beam body of slotting in the roof beam body moreover.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a telescoping device and bridge to solve the problem that above-mentioned prior art exists, the telescoping device is convenient for install, and the telescoping device can promote roof beam body intensity.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a telescopic device, which comprises a filling layer, a sealing element, two supporting connecting pieces and two pre-buried components, wherein the length directions of the two pre-buried components are all used along the width direction of a bridge body, the two pre-buried components are respectively pre-buried into a first beam body and a second beam body, and the upper surfaces of the two pre-buried components are not lower than the upper surfaces of the first beam body and the second beam body; the two supporting connecting pieces are respectively used for being arranged in the two mounting grooves, and the lower ends of the two supporting connecting pieces are respectively fixedly connected with the upper surfaces of the two embedded components; the filling layer is used for filling the two mounting grooves and fixedly connecting with the two supporting connecting pieces, and is also used for fixedly connecting with the pavement layer; the sealing member is located two between the supporting connection piece, the length direction of sealing member is used for following the width direction of bridge body, just the width direction's of sealing member both sides end respectively with two the sealed fixed connection of both sides face that the supporting connection piece is relative.
Preferably, the upper surfaces of the two embedded assemblies are flush with the upper surfaces of the first beam body and the second beam body where the embedded assemblies are located respectively.
Preferably, each embedded assembly comprises an embedded steel plate and a plurality of embedded steel bars, the length of each embedded steel plate is used for being arranged along the width direction of the bridge body, and the embedded steel bars are used for being arranged below the embedded steel plates at intervals along the width direction of the bridge body and fixedly connected with the lower surface of each embedded steel plate; the upper surface of the embedded steel plate is flush with the upper surface of the corresponding first beam body or the upper surface of the corresponding second beam body and fixedly connected with the corresponding supporting connecting piece.
Preferably, each embedded steel bar is provided with a connecting section, two first bending sections and two second bending sections; the linkage segment is followed the width direction of pre-buried steel sheet, two first buckle section respectively with linkage segment both ends fixed connection all sets up downwards, two the second buckle section respectively with two first buckle section fixed connection all upwards sets up, just the second buckle section is with being connected first buckle section is formed with the bending groove.
Preferably, each embedded assembly further comprises at least two embedded transverse steel bars with lengths along the width direction of the bridge body, and the embedded transverse steel bars penetrate through the bending grooves.
Preferably, the bridge further comprises a plurality of shear nails, the plurality of shear nails are arranged in the two mounting grooves, the plurality of shear nails are arranged in each mounting groove at intervals along the width direction of the bridge body, one end of each shear nail is fixedly connected with the supporting connecting piece in the mounting groove where the shear nail is located, and each shear nail is fixedly connected with the filling layer in the mounting groove where the shear nail is located.
Preferably, the bridge comprises at least two transverse steel bars along the width direction of the bridge body, the transverse steel bars are arranged in the two installation grooves, and the transverse steel bars are fixedly connected with the filling layers and the plurality of shear nails in the installation grooves.
Preferably, the upper surface of the filling layer and the upper surface of each supporting connector are configured to be flush with the upper surface of the adjacent paving layer.
Preferably, the filling layer is an ultra-high performance concrete layer; the sealing element is made of rubber, and the supporting connecting piece is made of metal; and the two sides of the sealing element in the width direction are fixedly embedded in the two supporting and connecting pieces.
The utility model also provides a bridge, which comprises a bridge body and the telescopic device, wherein the bridge body comprises a first beam body and a second beam body, and the adjacent two ends of the first beam body and the second beam body are provided with gaps; the upper surface of the first beam body and the upper surface of the second beam body are both provided with a paving layer; and the two paving layers are both provided with an installation groove; two pre-buried subassemblies of telescoping device are pre-buried respectively extremely first roof beam body with in the second roof beam body, the telescoping device the filling layer is equallyd divide with two support connection spare and do not fix set up in two in the mounting groove.
The utility model discloses for prior art gain following technological effect:
the utility model provides a telescopic device, because two pre-buried subassemblies have been pre-buried to the first roof beam body and in the second roof beam body, and the upper surface of pre-buried subassembly is not lower than the upper surface of the first roof beam body and the second roof beam body, therefore in the process of opening the safety groove, need not to slot to the roof beam body, only need open to the upper surface of pre-buried subassembly can, then with two support connecting pieces respectively with two pre-buried subassembly upper surfaces fixed connection, then use the filling layer to fill the mounting groove; therefore, the grooving workload is small, the installation is convenient, the internal structures of the first beam body and the second beam body do not need to be damaged, and the embedded assembly can improve the strength of the first beam body and the second beam body; wherein, the sealing member setting is between two support connection spare, can carry out waterproof sealing to the expansion joint between the first roof beam body and the second roof beam body.
The utility model provides a bridge sets up above-mentioned telescoping device through clearance (expansion joint) between the first roof beam body and the second roof beam body, when the first roof beam body of adaptation and the deformation of the second roof beam body, the pre-buried subassembly of telescoping device can promote the intensity of the first roof beam body and the second roof beam body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic sectional view of an assembly of a retractor device according to an embodiment;
fig. 2 is a schematic structural view of an embedded steel plate and an embedded steel bar according to the first embodiment.
Icon: 1-a bridge; 10-a bridge body; 11-a first beam; 12-a second beam; 13-paving layer; 14-mounting grooves; 20-a telescopic device; 21-a filler layer; 22-a seal; 23-a support connection; 24-pre-buried assembly; 241-embedding a steel plate; 242-embedding reinforcing steel bars; 2421-a linkage segment; 2422 — a first bend section; 2423-a second bend section; 2424-bending groove; 243-embedding transverse steel bars; 25-shear pins; 26-transverse reinforcement.
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 efforts all belong to the protection scope of the present invention.
The utility model aims at providing a telescoping device and bridge to solve the problem that above-mentioned prior art exists, be convenient for install, and can promote bridge intensity.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
The embodiment provides a telescopic device 20, please refer to fig. 1, which includes a filling layer 21, a sealing member 22, two supporting connecting members 23 and two embedded components 24, wherein the length directions of the two embedded components 24 are both used along the width direction of a bridge body 10, the two embedded components 24 are respectively used for being embedded into a first beam 11 and a second beam 12, and the upper surfaces of the two embedded components 24 are not lower than the upper surfaces of the first beam 11 and the second beam 12; the two supporting connecting pieces 23 are respectively arranged in the two mounting grooves 14, and the lower ends of the two supporting connecting pieces 23 are respectively fixedly connected with the upper surfaces of the two embedded components 24; the filling layer 21 is used for filling the two mounting grooves 14 and is fixedly connected with the two supporting connecting pieces 23, and the filling layer 21 is also used for being fixedly connected with the pavement layer 13; the sealing element 22 is located between the two supporting and connecting elements 23, the length direction of the sealing element 22 is used along the width direction of the bridge body 10, and two side ends of the sealing element 22 in the width direction are respectively and fixedly connected with two opposite side surfaces of the two supporting and connecting elements 23 in a sealing manner.
Because the two embedded assemblies 24 are embedded in the first beam body 11 and the second beam body 12, and the upper surfaces of the embedded assemblies 24 are not lower than the upper surfaces of the first beam body 11 and the second beam body 12, in the process of opening the safety slot 14, the beam body does not need to be grooved, only the beam body needs to be opened to the upper surfaces of the embedded assemblies 24, then the two supporting connecting pieces 23 are respectively and fixedly connected with the upper surfaces of the two embedded assemblies 24, and then the mounting slot 14 is filled with the filling layer 21; therefore, the grooving workload is small, the installation is convenient, the internal structures of the first beam body 11 and the second beam body 12 do not need to be damaged, and the embedded assembly can improve the strength of the first beam body and the second beam body; wherein, sealing member 22 sets up between two support connectors 23, can carry out waterproof sealing to the expansion joint between the first roof beam body 1 and the second roof beam body 2.
The embedded components 24 are embedded in the preparation process of the first beam body 11 and the second beam body 12, so that the installation workload of the telescopic device 20 is reduced; if the lower end of the supporting connector 23 is only partially connected to the upper surface of the embedded component 24, other parts of the upper surface of the embedded component 24 exposed in the mounting groove 14 can be fixedly connected to the filling layer 21.
In an alternative scheme of this embodiment, preferably, the upper surfaces of the two embedded assemblies 24 are flush with the upper surfaces of the first beam 11 and the second beam 12 where the two embedded assemblies are located, respectively; thus, the pavement layer 13 at the mounting position can be completely excavated, the vertical dimension 23 and the vertical mounting dimension of the support connecting piece can be improved to the maximum extent, and the strength of the telescopic device 20 can be improved.
In the alternative of this embodiment, preferably, each embedded assembly 24 includes an embedded steel plate 241 and a plurality of embedded steel bars 242, the length of the embedded steel plate 241 is used to be arranged along the width direction of the bridge body 10, and the plurality of embedded steel bars 242 are used to be arranged below the embedded steel plate 241 at intervals along the width direction of the bridge body 10 and fixedly connected with the lower surface of the embedded steel plate 241; the upper surface of the embedded steel plate 241 is flush with the upper surface of the corresponding first beam body 11 or the second beam body 12 and is fixedly connected with the corresponding support connecting piece 23; make pre-buried subassembly 24 have sufficient pre-buried intensity in first roof beam body 11 and the second roof beam body 12, and then promote telescoping device 20's installation intensity, can also promote the intensity of first roof beam body 11 and the second roof beam body 12.
Specifically, the number of the embedded steel plates 241 is one, and the length of the embedded steel plates is consistent with the width of the bridge body 10; or the embedded steel plates 241 are provided in plurality and spliced together in the width direction of the bridge body 10.
In the alternative of this embodiment, it is preferable that each embedded steel bar 242 has a connecting section 2421, two first bending sections 2422 and two second bending sections 2423; the connecting section 2421 is along the width direction of the embedded steel plate 241, two first bending sections 2422 are respectively and fixedly connected with two ends of the connecting section 2421 and are arranged downwards, two second bending sections 2423 are respectively and fixedly connected with the two first bending sections 2422 and are arranged upwards, and the second bending sections 2423 and the connected first bending sections 2422 are provided with bending grooves 2424; the pre-embedded strength of the pre-embedded assembly 24 in the first beam body 11 and the second beam body 12 is improved, and therefore the installation strength of the telescopic device 20 is improved.
In the alternative of this embodiment, preferably, each embedded assembly 24 further includes at least two embedded transverse bars 243 with lengths along the width direction of the bridge body 10, and each bending groove 2424 is penetrated by an embedded transverse bar 243; further improving the pre-buried strength and the installation strength of the telescopic device 20, and specifically determining the length and the number of the pre-buried transverse steel bars 243 according to actual requirements; further, the pre-buried transverse steel bars 243 can be welded and fixed at the bending grooves 2424.
In an alternative of this embodiment, preferably, the expansion device 20 provided in this embodiment further includes a plurality of shear nails 25, the plurality of shear nails 25 are used to be placed in the two installation grooves 14, the plurality of shear nails 25 in each installation groove 14 are used to be arranged at intervals in the width direction of the bridge body 10, one end of each shear nail 25 is fixedly connected to the support connecting member 23 in the installation groove 14 where the shear nail 25 is located, and each shear nail 25 is fixedly connected to the filling layer 21 in the installation groove 14 where the shear nail 25 is located; the installation strength of the telescopic device 20 is further improved, and the number of the specific shear pins 25 is determined according to the actual situation.
In an alternative of this embodiment, it is preferable that the expansion device 20 provided in this embodiment further includes at least two transverse reinforcing bars 26 for extending along the width direction of the bridge body 10, the plurality of transverse reinforcing bars 26 are used to be placed in the two mounting grooves 14, and the transverse reinforcing bars 26 are fixedly connected to the filling layer 21 and the plurality of shear nails 25 in the mounting groove 14 where the transverse reinforcing bars 26 are located; the transverse steel bars 26 and the shear nails 25 can be welded and connected, the installation strength of the telescopic device 20 is further improved, and the length and the number of the transverse steel bars 26 in each installation groove 14 are determined according to the actual situation.
In the alternative of this embodiment, it is preferable that the upper surface of the filling layer 21 and the upper surface of each supporting and connecting member 23 are configured to be flush with the upper surface of the adjacent pavement layer 13; avoid influencing the vehicle and pass.
In the alternative of this embodiment, it is preferable that the filling layer 21 is an ultra-high performance concrete layer, which has high compressive strength, short setting time and long service life; the sealing element 22 is made of rubber, has movable flexibility and can adapt to deformation; the supporting connecting piece 23 is made of metal; both ends of the seal member 22 in the width direction are fixedly fitted into the two support links 23.
Specifically, the supporting and connecting member 23 is made of deformed steel, and the supporting and connecting member 23, the shear nails 25 and the embedded components 24 can be welded and fixed.
Example two
The embodiment provides a bridge 1, which comprises a bridge body 10 and a telescopic device 20 provided by the first embodiment, wherein the bridge body 10 comprises a first beam body 11 and a second beam body 12, and a gap is formed between two adjacent ends of the first beam body 11 and the second beam body 12; the upper surfaces of the first beam body 11 and the second beam body 12 are provided with pavement layers 13; and the two paving layers 13 are respectively provided with an installation groove 14; two pre-buried subassemblies 24 of telescoping device are pre-buried respectively to first roof beam body 11 and second roof beam body 12 in, and the filling layer 21 and two support connectors 23 of telescoping device equally divide and fixedly set up respectively in two mounting grooves 14.
Through the clearance (expansion joint) between first roof beam body 11 and the second roof beam body 12, set up above-mentioned telescoping device 20, when the first roof beam body 11 of adaptation and the deformation of second roof beam body 12, the structural strength of the first roof beam body 11 of can promoting and the second roof beam body 12 of setting up of pre-buried subassembly 24.
In addition, the telescopic device 20 provided by the embodiment can be applied not only between two beams, but also between the beams and an abutment or at the hinge position of a bridge.
The principle and the implementation mode of the utility model are explained by applying a specific embodiment, and the explanation of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A telescopic device, characterized in that: the bridge structure comprises a filling layer (21), a sealing element (22), two supporting connecting pieces (23) and two embedded components (24), wherein the length directions of the two embedded components (24) are both used in the width direction of a bridge body (10), the two embedded components (24) are respectively embedded into a first beam body (11) and a second beam body (12), and the upper surfaces of the two embedded components (24) are not lower than the upper surfaces of the first beam body (11) and the second beam body (12) where the two embedded components are located; the two supporting connecting pieces (23) are respectively arranged in the two mounting grooves (14), and the lower ends of the two supporting connecting pieces (23) are respectively fixedly connected with the upper surfaces of the two embedded components (24); the filling layer (21) is filled in the two mounting grooves (14) and fixedly connected with the two supporting connecting pieces (23), and the filling layer (21) is also fixedly connected with the paving layer (13); the sealing element (22) is located between the two supporting connecting pieces (23), the length direction of the sealing element (22) is used for being along the width direction of the bridge body (10), and two side ends of the sealing element (22) in the width direction are respectively and fixedly connected with two opposite side faces of the supporting connecting pieces (23) in a sealing mode.
2. The telescopic device according to claim 1, wherein: the upper surfaces of the two embedded assemblies (24) are flush with the upper surfaces of the first beam body (11) and the second beam body (12) where the embedded assemblies are located respectively.
3. The telescopic device according to claim 2, wherein: each embedded assembly (24) comprises an embedded steel plate (241) and a plurality of embedded steel bars (242), the length of each embedded steel plate (241) is used for being arranged along the width direction of the bridge body (10), and the embedded steel bars (242) are used for being arranged below the embedded steel plates (241) at intervals along the width direction of the bridge body (10) and fixedly connected with the lower surfaces of the embedded steel plates (241); the upper surface of the embedded steel plate (241) is flush with the upper surface of the corresponding first beam body (11) or the upper surface of the corresponding second beam body (12) and fixedly connected with the corresponding support connecting piece (23).
4. The telescopic device according to claim 3, wherein: each embedded steel bar (242) is provided with a connecting section (2421), two first bending sections (2422) and two second bending sections (2423); the connecting section (2421) is along the width direction of the embedded steel plate (241), the two first bending sections (2422) are respectively and fixedly connected with two ends of the connecting section (2421) and are arranged downwards, the two second bending sections (2423) are respectively and fixedly connected with the two first bending sections (2422) and are arranged upwards, and bending grooves (2424) are formed between the second bending sections (2423) and the connected first bending sections (2422).
5. The telescopic device according to claim 4, wherein: each embedded assembly (24) further comprises at least two embedded transverse steel bars (243) with the length being used for along the width direction of the bridge body (10), and the embedded transverse steel bars (243) penetrate through each bending groove (2424).
6. The telescopic device according to claim 1, wherein: the bridge body is characterized by further comprising a plurality of shear nails (25), the shear nails (25) are arranged in the two mounting grooves (14), the shear nails (25) are arranged in the mounting grooves (14) at intervals in the width direction of the bridge body (10), one end of each shear nail (25) is fixedly connected with the supporting connecting piece (23) in the mounting groove (14) where the shear nail (25) is located, and each shear nail (25) is fixedly connected with the filling layer (21) in the mounting groove (14) where the shear nail (25) is located.
7. The telescopic device according to claim 6, wherein: the bridge comprises a bridge body (10) and is characterized by further comprising at least two transverse steel bars (26) used in the width direction of the bridge body (10), wherein the transverse steel bars (26) are used for being arranged in the two installation grooves (14), and the transverse steel bars (26) are fixedly connected with the filling layers (21) and the shear nails (25) in the installation grooves (14) where the transverse steel bars (26) are located.
8. The telescopic device according to claim 1, wherein: the upper surface of the filling layer (21) and the upper surface of each supporting connecting piece (23) are used for being flush with the upper surface of the adjacent pavement layer (13).
9. The telescopic device according to claim 1, wherein: the filling layer (21) is an ultrahigh-performance concrete layer; the sealing element (22) is made of rubber; the supporting connecting piece (23) is made of metal; the two sides of the sealing element (22) in the width direction are fixedly embedded in the two supporting and connecting pieces (23).
10. A bridge, characterized in that: comprising a bridge body (10) and a telescopic device (20) according to any one of claims 1-9, the bridge body (10) comprising a first beam (11) and a second beam (12), the first beam (11) and the second beam (12) having a gap between their adjacent ends; the upper surfaces of the first beam body (11) and the second beam body (12) are provided with paving layers (13); and the two paving layers (13) are respectively provided with an installation groove (14); two pre-buried subassemblies (24) of telescoping device are pre-buried respectively extremely first roof beam body (11) with in the second roof beam body (12), the telescoping device fill layer (21) and two support connectors (23) equally divide and do not fix set up in two in mounting groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222202149.0U CN217923064U (en) | 2022-08-22 | 2022-08-22 | Expansion device and bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222202149.0U CN217923064U (en) | 2022-08-22 | 2022-08-22 | Expansion device and bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217923064U true CN217923064U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222202149.0U Active CN217923064U (en) | 2022-08-22 | 2022-08-22 | Expansion device and bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217923064U (en) |
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2022
- 2022-08-22 CN CN202222202149.0U patent/CN217923064U/en active Active
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