CN219621594U - Bridge expansion joint structure - Google Patents
Bridge expansion joint structure Download PDFInfo
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- CN219621594U CN219621594U CN202320628876.5U CN202320628876U CN219621594U CN 219621594 U CN219621594 U CN 219621594U CN 202320628876 U CN202320628876 U CN 202320628876U CN 219621594 U CN219621594 U CN 219621594U
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- bridge
- tail part
- tail
- expansion joint
- embedded
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- 238000005520 cutting process Methods 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 2
- 238000005498 polishing Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 238000005336 cracking Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model aims at solving the problem of shear damage of a road bridge structure, and provides a bridge expansion joint structure, which comprises: the bag strip and the insert strip are respectively and fixedly connected to two ends of the bridge surface connected with the expansion joint; the wrapping strip comprises a tail part I and a containing part; the first tail part and the containing part are fixedly connected and are of U-shaped structures, the opening directions of the first tail part are opposite, the opening direction of the first tail part faces the side wall of the deformation joint of the bridge, the cutting comprises a second tail part and a socket part, the second tail part is identical to the first tail part in structure, the installation form is symmetrical to the first tail part, the opening direction of the second tail part faces the side wall of the bridge, the socket part is of a sheet-shaped structure, the socket part is fixedly connected with the second tail part, the shape and the size of the socket part are smaller than those of the containing part, the containing part and the socket part are matched with each other, and the expansion joint can expand and contract along multiple directions.
Description
Technical Field
The utility model relates to a filling structure, in particular to a bridge expansion joint structure.
Background
The highway bridge expansion device is used for meeting the requirement of bridge deck deformation, and is arranged between two beam ends, between a beam end and a bridge abutment or at the hinge position of a bridge, so as to absorb the deformation of a road bridge structure under the actions of expansion and contraction due to heat, vehicle load, earthquake and the like. The telescopic device can be freely telescopic in two directions parallel to and perpendicular to the length of the road bridge, and is firm and reliable.
In the prior art, for example, an adjustable combined telescopic device for highway bridges is proposed by chinese patent application No. 202120235185.X, a first connecting plate and a second connecting plate are connected together in a butt joint manner through corresponding shrinkage seats and telescopic strips, when the first connecting plate and the second connecting plate are used, the telescopic strips are driven to move towards the corresponding shrinkage seats when being deviated, and deformation caused by extrusion between the first connecting plate and the second connecting plate can be prevented when the adjustable combined telescopic device is used.
However, the device still has some defects in the actual use process:
the adjustable combined type telescopic device for the highway bridge can only stretch out and draw back along the direction parallel to the length of the bridge, and when the road bridge structures on two sides of the telescopic device are subjected to relative displacement in the direction horizontal to the length direction of the road bridge or relative displacement in the vertical direction, the adjustable combined type telescopic device for the highway bridge cannot freely stretch out and draw back, cannot absorb shear stress in the two directions, and is easy to cause shear damage to the road bridge structures. Therefore, in view of the above problems, the present utility model provides a highway bridge expansion device.
Disclosure of Invention
The utility model aims to solve the problem of shear damage of a road bridge structure and provides a bridge expansion joint structure.
The technical aim of the utility model is realized by the following technical scheme:
the utility model relates to a bridge expansion joint structure, which comprises: the wrapping strips and the inserting strips are arranged along the expansion joint walls of the bridge deck and are respectively and fixedly connected to two ends of the bridge deck connected with the expansion joints; the wrapping strip comprises a tail part I and a containing part; the first tail part is fixedly connected with the containing part, the first tail part and the containing part are of U-shaped structures, the U-shaped opening directions of the first tail part and the containing part are opposite, the opening direction of the first tail part faces the side wall of the bridge deformation joint and is fixedly connected with the side wall of the bridge, the cutting comprises a second tail part and a socket joint part, the second tail part is identical in structure with the first tail part, the installation form is symmetrical to the first tail part, the opening direction of the second tail part faces the side wall of the bridge and is fixedly connected with the other side wall of the bridge deformation joint, the socket joint part is of a sheet-shaped structure, the socket joint part is fixedly connected with the second tail part, the shape and the size of the socket joint part are smaller than the containing part, and when the bridge expansion joint is deformed, the socket joint part can move in the horizontal and vertical directions inside the containing part.
By adopting the technical scheme, the package strip and the insert strip can be reliably fixed at the two ends of the bridge expansion joint through the first tail part and the second tail part, and through the mutual matching of the containing part and the socket part, the expansion joint can stretch out and draw back along the direction parallel to the length of the bridge and can stretch out and draw back along the direction horizontal to the length direction of the road bridge or the vertical direction, so that the telescopic device has a multi-direction telescopic function and can be better coordinated with the bridge structure, the bridge structure is prevented from cracking due to the tensile force parallel to the length direction of the road bridge or the shearing stress of the road surface vertical to the length direction of the road bridge and the vertical direction, and the package strip and the insert strip have no gap in the length direction, so that sundries are not easy to fall into the structure in the subsequent use process to affect the normal expansion of the structure, and the later cleaning and maintenance cost is favorable for saving.
Preferably, the device further comprises a smooth chute, wherein the smooth chute is sleeved on the inner surface of the containing part, the size of the smooth chute is matched with that of the inner groove of the containing part, the smooth chute is fixedly connected with the containing part, and the smooth friction force on the surface of the inner groove of the smooth chute is small.
By adopting the technical scheme, the smooth groove reduces the relative motion between the friction force between the containing part and the spigot and socket part, so that the bridge structure is easier to crack due to the tensile force parallel to the length direction of the bridge or the shearing stress of the pavement perpendicular to the length direction and the vertical direction of the bridge.
Preferably, the free ends of the upper layers of the containing part and the optical chute are provided with slopes, the directions of the slopes are along the expansion joints, and the slopes face obliquely upwards.
By adopting the technical scheme, the slope has the effect that sundries are not easy to be blocked in the gap between the free end of the containing part and the other end of the expansion joint, and the sundries in the gap are easy to be cleaned during subsequent cleaning and maintenance.
Preferably, the device further comprises an embedded part; the embedded part is arranged along the two side walls of the expansion joint and symmetrically and respectively fixedly connected with the two side walls, the cross section of the embedded part is U-shaped, the U-shaped openings are oppositely arranged, the inner groove of the embedded part is matched with the shape and the size of the tail part I and the tail part II, and the tail part I and the tail part II are clamped in the openings of the embedded part.
By adopting the technical scheme, the embedded part has the advantages that the construction is convenient, the embedded part is just needed to be embedded during the construction, the package strip and the insert strip are clamped into the groove of the embedded part after the bridge structure is solidified, and the process of fixing the package strip and the insert strip in the solidification process is omitted.
Preferably, the first tail and the second tail respectively comprise a first clamping part, a limiting part and a first connecting part, the first clamping part is positioned at the upper free ends of the first tail and the second tail, the cross section of the first clamping part is of a right triangle structure, the surface of one right angle side of the right triangle is fixedly connected with the upper free ends of the first tail and the second tail, the surface of the bottom side of the right angle triangle faces obliquely upwards, the first limiting part is positioned at the lower free ends of the first tail and the second tail, and the length of the limiting part is slightly longer than that of the bottom plate of the embedded part; the embedded part comprises a second clamping part and a bottom plate, the cross section of the second clamping part is of a right triangle structure, the surface of one right-angle side of the right triangle is fixedly connected to the upper free end of the embedded part, the surface of the bottom side of the right triangle faces obliquely downwards, and the limiting part is located at the lower free end of the embedded part.
By adopting the technical scheme, the first clamping part and the second clamping part are matched with each other, so that the package strip and the insert strip are reliably fixed in the embedded part.
Preferably, the embedded parts can be arranged in a segmented mode, and the geometric centers of the embedded parts are all on the same straight line.
By adopting the technical scheme, the embedded part is arranged in a segmented mode, so that raw materials are saved, raw material cost is reduced, processing cost of the embedded part can be reduced to a certain extent, and cost is further reduced.
Preferably, the flexible filling device further comprises flexible filling, wherein the flexible filling is arranged above the slope, the shape and the size of the flexible filling are matched with those of a gap formed between the slope and the other side wall of the expansion joint, and the flexible filling is made of easily deformable materials.
By adopting the technical scheme, the flexible filling can prevent sundries from falling into a gap formed between the slope and the other side wall of the expansion joint on the premise of not obstructing the deformation of the expansion joint.
The utility model has the following beneficial effects: through afterbody one and afterbody two, package strip and cutting can be reliably fixed in the both ends of bridge expansion joint, through the mutually supporting of containing portion and socket joint portion, this expansion joint both can be along the direction that is on a parallel with bridge length flexible again can be along horizontal perpendicular to road bridge length direction or vertical direction flexible, therefore, this telescoping device has multi-direction flexible function, can be better coordinate with bridge structure, prevent that bridge structure from receiving the tensile force that is on a parallel with road bridge length direction or road surface perpendicular to road bridge length direction and vertical direction shear stress and fracture, and package strip and cutting do not have the gap in length direction, be difficult for having debris to fall into influence structure normal flexible in the follow-up use, be favorable to practicing thrift later stage clearance maintenance cost. The optical sliding groove reduces the relative movement between the friction force between the containing part and the spigot and socket part, so that the bridge structure is further prevented from cracking due to the tensile force parallel to the length direction of the bridge or the shearing stress of the road surface perpendicular to the length direction and the vertical direction of the bridge. The slope has the function that sundries are not easy to be blocked in the gap between the free end of the containing part and the other end of the expansion joint, and the sundries in the gap are easy to be cleaned during subsequent cleaning and maintenance. The embedded part has the advantages that the embedded part is convenient to construct, the embedded part is embedded well during construction, the package strip and the insert strip are clamped into the groove of the embedded part after the bridge structure is solidified, and the process of fixing the package strip and the insert strip in the solidification process is omitted. The first clamping part and the second clamping part are matched with each other to ensure that the package strip and the insert strip are reliably fixed in the embedded part. The embedded part is arranged in a segmented mode, raw materials are saved, raw material cost is reduced, processing cost of the embedded part can be reduced to a certain extent, and cost is further reduced. The flexible filling can prevent sundries from falling into a gap formed between the slope and the other side wall of the expansion joint on the premise of not obstructing the deformation of the expansion joint.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic perspective view of an expansion joint;
FIG. 2 is a front view of an expansion joint;
FIG. 3 is an exploded view of a three-dimensional structure of an expansion joint;
fig. 4 is a front exploded view of an expansion joint.
Reference numerals indicate, 1, wrapping strips; 2. cutting; 3. bridge deck; 101. tail I; 102. a containing part; 201. a second tail part; 202. a socket; 4. a smooth groove; 5. a ramp; 6. an embedded part; 1011. a first clamping part; 1012. a limit part; 601. a second clamping part; 602. a bottom plate; 7. and (5) flexible filling.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals.
A bridge expansion joint structure, as shown in fig. 1-4, comprising: the bridge deck comprises a package strip 1 and an insert strip 2, wherein the package strip 1 and the insert strip 2 are arranged along the expansion joint wall of the bridge deck 3, and the package strip 1 and the insert strip 2 are respectively and fixedly connected to two ends of the bridge deck 3 connected with the expansion joint; the wrapping strip 1 comprises a tail part I101 and a containing part 102; the first tail part 101 is fixedly connected with the containing part 102, the first tail part 101 and the containing part 102 are of U-shaped structures, the U-shaped opening directions of the first tail part 101 and the containing part 102 are opposite, the opening direction of the first tail part 101 faces the side wall of the bridge deformation joint and is fixedly connected with the side wall of the bridge, the insert 2 comprises a second tail part 201 and a socket part 202, the structure of the second tail part 201 is identical to that of the first tail part 101, the installation form of the second tail part 201 is symmetrical to that of the first tail part 101, the opening direction of the second tail part 201 faces the side wall of the bridge and is fixedly connected with the other side wall of the bridge deformation joint, the socket part 202 is of a sheet-shaped structure, the socket part 202 is fixedly connected with the second tail part 201, the shape and the size of the socket part 202 are smaller than the containing part 102, and when the bridge expansion joint deforms, the socket part 202 can move in the horizontal and vertical directions inside the containing part 102. The novel optical fiber polishing device further comprises an optical chute 4, wherein the inner surface of the containing part 102 is sleeved with a smooth groove 4, the shape and the size of the smooth groove 4 are matched with those of the inner groove of the containing part 102, the smooth groove 4 is fixedly connected with the containing part 102, and the smooth friction force on the surface of the inner groove of the smooth groove 4 is small. The free ends of the upper layers of the containing part 102 and the smooth groove 4 are provided with slopes 5, the directions of the slopes 5 are along the expansion joints, and the slopes face obliquely upwards. The embedded part 6 is also included; the embedded part 6 is arranged along the two side walls of the expansion joint and symmetrically and respectively fixedly connected with the two side walls, the cross section of the embedded part 6 is U-shaped, the U-shaped openings are oppositely arranged, the inner groove of the embedded part 6 is matched with the shape and the size of the tail part I101 and the tail part II 201, and the tail part I101 and the tail part II 201 are clamped in the openings of the embedded part 6. The first tail part 101 and the second tail part 201 respectively comprise a first clamping part 1011, a limiting part 1012 and a first connecting part, the first clamping part 1011 is positioned at the upper free ends of the first tail part 101 and the second tail part 201, the cross section of the first clamping part 1011 is of a right triangle structure, the surface of one right angle side of the right triangle is fixedly connected with the upper free ends of the first tail part 101 and the second tail part 201, the surface of the bottom side of the right angle triangle faces obliquely upwards, the first limiting part 1012 is positioned at the lower free ends of the first tail part 101 and the second tail part 201, and the length of the limiting part 1012 is slightly longer than the length of the bottom plate 602 of the embedded part 6; the embedded part 6 comprises a second clamping part 601 and a bottom plate 602, the cross section of the second clamping part 601 is of a right triangle structure, the surface of one right-angle side of the right triangle is fixedly connected to the upper free end of the embedded part 6, the surface of the bottom side of the right triangle faces obliquely downwards, and a second limiting part 1012 is located at the lower free end of the embedded part 6. The embedded parts 6 can be arranged in a segmented mode, and the geometric centers of the embedded parts 6 are all on the same straight line. The flexible filling device further comprises a flexible filling 7, wherein the flexible filling 7 is arranged above the slope 5, the shape and the size of the flexible filling 7 are matched with those of a gap formed between the slope 5 and the other side wall of the expansion joint, and the flexible filling 7 is made of a deformable material.
Through afterbody one 101 and afterbody two 201, package strip 1 and cutting 2 can reliably fix the both ends at the bridge expansion joint, through the mutual cooperation of holding portion 102 and socket joint portion 202, this expansion joint both can be along the direction that is on a parallel with bridge length flexible again can be along horizontal perpendicular to road bridge length direction or vertical direction flexible, consequently, this telescoping device has multi-direction flexible function, can be better coordinate with bridge structure, prevent that bridge structure from receiving the tensile force that is on a parallel with road bridge length direction or road surface perpendicular to road bridge length direction and vertical direction shear stress and fracture, and package strip 1 and cutting 2 do not have the gap in length direction, be difficult to have debris to fall into influence structure normal flexible in subsequent use, be favorable to practicing thrift later stage clearance maintenance cost. The optical chute 4 reduces the relative movement between the friction between the housing 102 and the socket 202, and further prevents the bridge structure from cracking due to tensile forces parallel to the bridge length direction or shear stresses of the road surface perpendicular to the bridge length direction and vertical direction. The slope has the function that sundries are not easy to be blocked in the gap between the free end of the containing part 102 and the other end of the expansion joint, and the sundries in the gap are easy to be cleaned during subsequent cleaning and maintenance. The embedded part 6 has the advantages that the construction is convenient, the embedded part 6 is just needed to be embedded during the construction, the wrapping strip 1 and the inserting strip 2 are clamped into the groove of the embedded part 6 after the bridge structure is solidified, and the process of fixing the wrapping strip 1 and the inserting strip 2 in the solidification process is omitted. The first clamping part 1011 and the second clamping part 601 are matched with each other to ensure that the package strip 1 and the insert strip 2 are reliably fixed in the embedded part 6. The embedded part 6 is arranged in a segmented mode, raw materials are saved, raw material cost is reduced, processing cost of the embedded part 6 can be reduced to a certain extent, and cost is further reduced. The flexible filling 7 can prevent sundries from falling into a gap formed between the slope 5 and the other side wall of the expansion joint on the premise of not obstructing the deformation of the expansion joint.
When the bridge structure is used, the embedded part 6 is embedded into the two side walls of the expansion joint firstly during pouring, and after the bridge structure is solidified, the wrapping strip 1 and the inserting strip 2 are respectively clamped into the embedded part 6, so that reliable position fixing is realized.
This specific example is merely illustrative of the utility model and is not intended to be limiting.
Claims (7)
1. A bridge expansion joint structure, comprising: the bridge comprises a wrapping strip (1) and an inserting strip (2), wherein the wrapping strip (1) and the inserting strip (2) are arranged along the expansion joint wall of a bridge deck (3), and the wrapping strip (1) and the inserting strip (2) are respectively and fixedly connected to two ends of the bridge deck (3) connected with the expansion joint; the wrapping strip (1) comprises a tail part I (101) and a containing part (102); the first tail part (101) is fixedly connected with the containing part (102), the first tail part (101) and the containing part (102) are of U-shaped structures, the U-shaped opening directions of the first tail part and the containing part are opposite, the opening direction of the first tail part (101) faces the side wall of the bridge deformation joint and is fixedly connected with the side wall of the bridge, the cutting (2) comprises a second tail part (201) and a socket part (202), the structure of the second tail part (201) is identical to that of the first tail part (101) and is symmetrical to the first tail part (101), the opening direction of the second tail part (201) faces the side wall of the bridge and is fixedly connected with the other side wall of the bridge deformation joint, the socket part (202) is of a sheet-shaped structure, the socket part (202) is fixedly connected with the second tail part (201), the shape and the size of the socket part (202) are smaller than the containing part (102), and the socket part (202) can move in the horizontal and vertical directions inside the containing part (102) when the bridge expansion joint deforms.
2. A bridge expansion joint structure according to claim 1, wherein: the novel optical fiber polishing device further comprises an optical sliding groove (4), the optical sliding groove (4) is sleeved on the inner surface of the containing part (102), the shape and the size of the optical sliding groove (4) are matched with those of the inner groove of the containing part (102), the optical sliding groove (4) is fixedly connected with the containing part (102), and the smooth friction force of the inner groove surface of the optical sliding groove (4) is small.
3. A bridge expansion joint structure according to claim 2, wherein: the upper free ends of the containing part (102) and the smooth groove (4) are provided with slopes (5), the directions of the slopes (5) are along the expansion joints, and the slopes face obliquely upwards.
4. A bridge expansion joint structure according to claim 3, wherein: the embedded part (6) is also included; the embedded part (6) is arranged along two side walls of the expansion joint and symmetrically and respectively fixedly connected with the two side walls, the cross section of the embedded part (6) is U-shaped, the U-shaped openings are oppositely arranged, the inner groove of the embedded part (6) is matched with the shape and the size of the tail part I (101) and the tail part II (201), and the tail part I (101) and the tail part II (201) are clamped in the openings of the embedded part (6).
5. The bridge expansion joint structure according to claim 4, wherein: the first tail part (101) and the second tail part (201) comprise a first clamping part (1011), a limiting part (1012) and a first connecting part, the first clamping part (1011) is positioned at the upper free ends of the first tail part (101) and the second tail part (201), the cross section of the first clamping part (1011) is of a right-angle triangle structure, the surface of one right-angle side of the right-angle triangle is fixedly connected with the upper free ends of the first tail part (101) and the second tail part (201), the surface of the bottom side of the right-angle triangle faces obliquely upwards, the first limiting part is positioned at the lower free ends of the first tail part (101) and the second tail part (201), and the length of the limiting part (1012) is slightly longer than the length of the bottom plate (602) of the embedded part (6); the embedded part (6) comprises a second clamping part (601) and a bottom plate (602), the cross section of the second clamping part (601) is of a right-angle triangle structure, the face where one right-angle side of the right-angle triangle is located is fixedly connected to the upper free end of the embedded part (6), the face where the bottom side of the right-angle triangle is located faces obliquely downwards, and the limiting part is located at the lower free end of the embedded part (6).
6. The bridge expansion joint structure according to claim 4, wherein: the embedded parts (6) can be arranged in a segmented mode, and the geometric centers of the embedded parts (6) are all on the same straight line.
7. The bridge expansion joint structure according to claim 5, wherein: the flexible filling device is characterized by further comprising a flexible filling (7), wherein the flexible filling (7) is arranged above the slope (5), the shape and the size of the flexible filling (7) are matched with those of a gap formed between the slope (5) and the other side wall of the expansion joint, and the flexible filling (7) is made of a deformable material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320628876.5U CN219621594U (en) | 2023-03-25 | 2023-03-25 | Bridge expansion joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320628876.5U CN219621594U (en) | 2023-03-25 | 2023-03-25 | Bridge expansion joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219621594U true CN219621594U (en) | 2023-09-01 |
Family
ID=87795246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320628876.5U Active CN219621594U (en) | 2023-03-25 | 2023-03-25 | Bridge expansion joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219621594U (en) |
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2023
- 2023-03-25 CN CN202320628876.5U patent/CN219621594U/en active Active
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