CN114855605B - Assembled integral type elastomer seamless expansion joint structure - Google Patents
Assembled integral type elastomer seamless expansion joint structure Download PDFInfo
- Publication number
- CN114855605B CN114855605B CN202210484158.5A CN202210484158A CN114855605B CN 114855605 B CN114855605 B CN 114855605B CN 202210484158 A CN202210484158 A CN 202210484158A CN 114855605 B CN114855605 B CN 114855605B
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- Prior art keywords
- elastic
- joint structure
- expansion joint
- sleeve
- support
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- 229920001971 elastomer Polymers 0.000 title claims description 13
- 239000000806 elastomer Substances 0.000 title claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 239000000945 filler Substances 0.000 claims description 14
- 229920002635 polyurethane Polymers 0.000 description 11
- 239000004814 polyurethane Substances 0.000 description 11
- 238000003466 welding Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/065—Joints having sliding plates
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The utility model provides an assembled precompression elastic support seamless expansion joint structure, includes girder and bridge deck pavement, and bridge deck pavement lays on the girder, forms the fracture between the adjacent girder, assembled precompression elastic support seamless expansion joint structure installs on the fracture, assembled precompression elastic support seamless expansion joint structure includes telescopic link subassembly and elastic support, and the elastic support lid is established on the fracture, telescopic link subassembly and elastic support sliding connection, and the elastic support includes lid seam board, sleeve pipe, elastic component and buckle, and the sleeve pipe passes through elastic component to be installed on lid seam board, and the buckle is installed in the sheathed tube outside, and supports with lid seam board and establish, through elastic component's setting, can realize taking place relative movement between lid seam board, the sleeve pipe, avoids elastic support's stress concentration, improves the life of support to guarantee this expansion joint structure's life.
Description
Technical Field
The invention belongs to the technical field of expansion joints, and particularly relates to an assembled integrated elastomer seamless expansion joint structure.
Background
The seamless expansion joint is increasingly applied to the maintenance of newly-built bridges and old bridge expansion joints. Polyurethane is used as an elastic material of a seamless expansion joint, has the advantages of high construction speed and good toughness, but needs to embed a reinforcement cage in the polyurethane, and has the functions of supporting the polyurethane, increasing stability and eliminating plastic deformation of the polyurethane. The movable cross rod of the steel reinforcement framework is one of main components and is manufactured by welding a plurality of steel reinforcements on angle steels at the edges of two sides of the notch of the expansion joint, so that the cross rod has large span, can generate larger bending deformation under the action of vehicle load, is not beneficial to supporting polyurethane, and can also cause the damage of a seamless expansion joint; meanwhile, the expansion joint bears repeated rolling action of the vehicle, and a cracking risk exists in a welding line between the movable cross rod and the angle steel. When the temperature is reduced, the bridge is shortened, expansion joints are expanded and displaced, and polyurethane at the left side and the right side in the height range of the angle steel is broken, so that the polyurethane cannot form uniform stretching deformation, and the phenomenon of stress strain concentration exists in the polyurethane. The bridge deck pavement and polyurethane bonding parts at the left side and the right side of the expansion joint notch are weak parts, and are easy to crack to form cracks, so that the water on the bridge deck leaks into the joints.
The expansion joint filler on the market at present does not have the function of deformation from top to bottom, and the filler can't carry out suitable displacement when receiving the load effect, leads to expansion joint structure's life to reduce, leads to the filler to take place the phenomenon that gets out.
Disclosure of Invention
Aiming at the defects, the invention aims to provide the assembled integral elastomer seamless expansion joint structure, and the elastic filler paved on the fracture of the expansion joint structure can deform in the vertical direction, so that the stress concentration of a support is avoided, the service life of the support is prolonged, and the service life of the expansion joint structure is prolonged.
In order to solve the technical problems, the invention adopts the technical proposal that,
The utility model provides an assembled precompression elastic support seamless expansion joint structure, includes girder and bridge deck pavement, and bridge deck pavement is laid on the girder, forms the fracture between the adjacent girder, assembled precompression elastic support seamless expansion joint structure installs on the fracture, assembled precompression elastic support seamless expansion joint structure includes telescopic link subassembly and elastic support, and the elastic support lid is established on the fracture, telescopic link subassembly and elastic support sliding connection, and the elastic support includes lid seam board, sleeve pipe, elastic component and buckle, and the sleeve pipe passes through elastic component to be installed on lid seam board, and the buckle is installed in the sheathed tube outside, and supports with lid seam board and establish.
Further, the elastic component includes riser, elastic column and support pole, and riser fixed mounting is on the cover seam board, and support pole fixed mounting is on the sleeve pipe, and support pole telescopic installs on the riser, and the elastic column is installed on the riser, and with support pole adaptation.
Further, a sleeve groove is formed on the retaining ring, and the sleeve is slidably arranged in the sleeve groove.
Further, the buckle ring comprises a bottom plate and a U-shaped plate, the bottom plate is fixedly connected to the end part of the U-shaped plate, and the bottom plate is propped against the joint cover plate.
Further, the telescopic link subassembly includes C shaped steel, elastomeric block, set screw and telescopic link, and C shaped steel passes through set screw fixed mounting and is installed on bridge floor shop dress, and the elastomeric block is installed between C shaped steel, bridge floor shop, and the telescopic link is installed on C shaped steel, and with sleeve pipe sliding connection.
Further, the front end of the C-shaped steel is fixedly connected with a clamping part, a clamping hole is formed in the clamping part, and one side end part of the telescopic rod is clamped in the clamping hole.
Further, a clamping groove is formed on the telescopic rod, and the clamping groove is matched with the clamping hole.
Further, the inner diameter of the sleeve is 5mm larger than the diameter of the telescopic rod.
Further, a steel plate through hole is formed in the rear end face of the C-shaped steel, a cushion block through hole is formed in the elastic block, and the fixing screw is matched with the steel plate through hole and the cushion block through hole.
Further, the bridge deck pavement, the main beam and the assembled integrated elastomer seamless expansion joint structure are surrounded to form an open slot, and elastic filler is filled in the open slot.
The telescopic joint structure has the beneficial effects that through the arrangement of the elastic component, the relative movement between the joint plate and the sleeve is realized, the stress concentration of the elastic support is avoided, and the service life of the support is prolonged, so that the service life of the telescopic joint structure is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an expanded schematic view of the elastic support.
Fig. 3 is a schematic structural view of the set screw.
Fig. 4 is a schematic structural view of the elastic block.
Fig. 5 is a schematic structural view of the C-section steel.
Fig. 6 is a schematic structural view of the telescopic rod.
Fig. 7 is a schematic diagram of an implementation of the present invention.
Reference numerals: the bridge deck pavement system comprises a main beam 1, bridge deck pavement 2, an elastic support 3, a joint cover plate 31, a vertical pipe 32, an elastic column 33, a sleeve 34, a support rod 35, a retaining ring 36, a sleeve groove 37, a bottom plate 361, a U-shaped plate 362, a fixing screw 4, an adjusting nut 41, an elastic block 5, a cushion block through hole 51, a C-shaped steel 6, a clamping hole 61, a steel plate through hole 62, a clamping part 63, a telescopic rod 7, an elastic filler 8, a fracture 9 and an open groove 11.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The utility model provides an assembled precompression elastic support seamless expansion joint structure, includes girder 1 and bridge deck pavement 2, and bridge deck pavement 2 lays on girder 1, forms fracture 9 between the adjacent girder 1, assembled precompression elastic support seamless expansion joint structure installs on fracture 9, assembled precompression elastic support seamless expansion joint structure includes telescopic link subassembly and elastic support 3, and elastic support 3 covers and establishes on fracture 9, telescopic link subassembly and elastic support sliding connection, and elastic support 3 includes lid seam board 31, sleeve pipe 34, elastic component and buckle 36, and sleeve pipe 34 passes through elastic component to be installed on lid seam board 31, and buckle 36 installs in sleeve pipe 34's outside, and supports with lid seam board 31 and establish, through elastic component's setting, can realize taking place relative movement between lid seam board 31, the sleeve pipe 34, avoids elastic support 3's stress concentration, improves the life of support to guarantee the life of this expansion joint structure.
The elastic assembly comprises a vertical pipe 32, an elastic column 33 and a support rod 35, wherein the vertical pipe 32 is fixedly arranged on the cover seam plate 31, the support rod 35 is fixedly arranged on the sleeve 34, the support rod 35 is telescopically arranged on the vertical pipe 32, and the elastic column 33 is arranged on the vertical pipe 32 and is matched with the support rod 35.
The support rod 35 can move up and down relative to the sleeve 34, when the vertical pipe 32 receives a load, the sleeve 34 is pressed down, and when the load is removed, the sleeve 34 can rebound and reset, so that the stress concentration of the elastic support 3 is avoided, the service life of the support is prolonged, the elastic column 33 is made of rubber materials, elastic deformation can be generated in a small range, and the deformation of the filler is ensured, and meanwhile, the excessive deformation of the filler is prevented from being broken.
The retaining ring 36 is formed with a sleeve groove 37, the sleeve 34 is slidably mounted in the sleeve groove 37, the retaining ring 36 comprises a bottom plate 361 and a U-shaped plate 362, the sleeve groove 37 is formed in the U-shaped plate 362, the bottom plate 361 is fixedly connected to the end part of the U-shaped plate 362, and the bottom plate 361 is abutted against the cover seam plate 31.
During the filling process of the filler, the fixing snap ring 36 is welded on the cover seam plate 31 through the bottom plate 361, so that the sleeve 34 is prevented from floating under the action of larger buoyancy force during the filling process of the filler, the installation stability of the sleeve 34 is ensured, and the support rod 35 is prevented from sliding out of the stand pipe 32.
The telescopic rod assembly comprises C-shaped steel 6, an elastic block 5, a fixing screw 4 and a telescopic rod 7, wherein the C-shaped steel 6 is fixedly installed on the bridge deck pavement 2 through the fixing screw 4, the elastic block 5 is installed between the C-shaped steel 6 and the bridge deck pavement 2, one end of the telescopic rod 7 is clamped on the C-shaped steel 6, and the other end of the telescopic rod 7 is inserted into the sleeve 34.
The elastic block 5 is in the pressurized state under the normal state, so that the joint between the elastic block 5 and the side edge of the bridge deck pavement 2 and the joint between the elastic block 5 and the C-shaped steel 7 is always kept in the pressurized state, the joint of the elastic block 5 is prevented from being cracked, and the bridge deck water is prevented from leaking into the joint.
The front end of the C-shaped steel 6 is fixedly connected with a clamping part 63, a clamping hole 61 is formed in the clamping part 63, and one side end part of the telescopic rod 8 is clamped in the clamping hole 61.
Through the setting of joint hole 61, be convenient for carry out spacingly to telescopic link 7, when reducing the welding process, also avoided the telescopic link 7 that the welding seam fracture led to drop in the expansion joint use.
The telescopic rod 7 is provided with the clamping groove 71, the clamping groove 71 is matched with the clamping hole 61, the telescopic rod 7 is clamped through the clamping groove 71 without welding, and the telescopic rod 7 can be prevented from falling off.
The inner diameter of the sleeve 34 is 5mm larger than the diameter of the telescopic rod 7, so that the sleeve 34 is prevented from bending the telescopic rod 7 in the process of moving the sleeve 34 up and down.
The steel plate through holes 62 are formed in the rear end face of the C-shaped steel 6, the cushion block through holes 51 are formed in the elastic block 5, the fixing screws 4 are matched with the steel plate through holes 62 and the cushion block through holes 51, the fixing screws 4 penetrate through the steel plate through holes 62 and the cushion block through holes 51 and then are fixedly connected with the bridge deck pavement 2, the fixing screws 4 are convenient to install, and the installation efficiency is improved.
In this embodiment, the set screw 4 is an expansion screw, and the set screw 4 is provided with an adjusting nut 41, so that the elastic block 5 is compressed by the adjusting nut 41, and a crack is prevented from occurring at the joint of the elastic block 5, and water on the bridge surface leaks into the crack.
Bridge deck pavement 2, girder 1, assembled integral type elastomer seamless expansion joint structure surround and form open slot 11, are filled with elastic filler 8 in open slot 11, and the material of elastic filler 8 can be polyurethane or other elastomer.
The implementation of the present structure is shown in fig. 7, including the following steps,
(1) The groove opening sundries, floating, ponding and oil stains of the expansion joint opening groove 11 are cleaned up and kept dry;
(2) Continuously placing a factory-prefabricated integrated cover seam plate 31, a vertical pipe 32 and an elastic block 33 on the break seam 9;
(3) Inserting a sleeve 34, a seat post 35, prefabricated as one piece at the factory, into the riser 32;
(4) The retaining ring 36 is sleeved on the horizontal pipe 34, and the bottom of the retaining ring is welded on the joint cover plate 31;
(5) Punching holes on the bridge deck pavement 2 according to the positions of the cushion block through holes 51 on the elastic blocks 5, and fixing the fixing screws 4 on the bridge deck pavement 2;
(6) Gluing the joint surfaces of the elastic blocks 5, the bridge deck pavement 2 and the C-shaped steel 6, and penetrating the fixing screws 4;
(7) Penetrating the C-shaped steel 6 into the fixing screw 4, screwing the nut 41, and applying pre-compression to the elastic block 5;
(8) One end of the telescopic rod 7 is inserted into the sleeve 34, and the clamping groove 71 at the other end is clamped on the clamping hole 61 of the C-shaped steel 6;
(9) Pouring an elastic filler 8 (polyurethane).
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Although the terms corresponding to the reference numerals in the drawings are used more herein, the possibility of using other terms is not excluded; these terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
Claims (7)
1. The utility model provides an assembled integral type elastomer seamless expansion joint structure, includes girder (1) and bridge deck pavement (2), and bridge deck pavement (2) are laid on girder (1), form fracture (9) between adjacent girder (1), assembled integral type elastomer seamless expansion joint structure installs on fracture (9), its characterized in that, assembled integral type elastomer seamless expansion joint structure includes telescopic link subassembly and elastic support (3), and elastic support (3) lid is established on fracture (9), telescopic link subassembly and elastic support sliding connection, and elastic support (3) include lid seam board (31), sleeve pipe (34), elastic component and buckle (36), and sleeve pipe (34) are installed on lid seam board (31) through elastic component, and buckle (36) are installed in the outside of sleeve pipe (34), and support with lid seam board (31) and establish;
The elastic component comprises a vertical pipe (32), an elastic column (33) and a support rod (35), wherein the vertical pipe (32) is fixedly arranged on the cover seam plate (31), the support rod (35) is fixedly arranged on the sleeve (34), the support rod (35) is telescopically arranged on the vertical pipe (32), and the elastic column (33) is arranged on the vertical pipe (32) and is matched with the support rod (35);
A sleeve groove (37) is formed on the retaining ring (36), and the sleeve (34) is slidably arranged in the sleeve groove (37);
The retaining ring (36) comprises a bottom plate (361) and a U-shaped plate (362), the bottom plate (361) is fixedly connected to the end part of the U-shaped plate (362), and the bottom plate (361) is propped against the joint cover plate (31).
2. The assembled integral elastic body seamless expansion joint structure according to claim 1, wherein the expansion rod assembly comprises C-shaped steel (6), an elastic block (5), a fixing screw (4) and an expansion rod (7), the C-shaped steel (6) is fixedly installed on the bridge deck pavement (2) through the fixing screw (4), the elastic block (5) is installed between the C-shaped steel (6) and the bridge deck pavement (2), and the expansion rod (7) is installed on the C-shaped steel (6) and is in sliding connection with the sleeve (34).
3. The assembled integral elastic body seamless expansion joint structure according to claim 2, wherein a clamping portion (63) is fixedly connected to the front end of the C-shaped steel (6), a clamping hole (61) is formed in the clamping portion (63), and one side end portion of the telescopic rod (7) is clamped in the clamping hole (61).
4. A prefabricated integral elastomer seamless expansion joint structure according to claim 3, characterized in that the expansion rod (7) is provided with a clamping groove (71), and the clamping groove (71) is matched with the clamping hole (61).
5. A fabricated integral elastomer seamless expansion joint structure according to claim 2, characterized in that the inner diameter of the sleeve (34) is 5mm larger than the diameter of the expansion rod (7).
6. The assembled integral elastic body seamless expansion joint structure according to claim 2, wherein a steel plate through hole (62) is formed in the rear end face of the C-shaped steel (6), a cushion block through hole (51) is formed in the elastic block (5), and the fixing screw (4) is matched with the steel plate through hole (62) and the cushion block through hole (51).
7. The assembled integral elastic body seamless expansion joint structure according to claim 1, wherein the bridge deck pavement (2), the main beam (1) and the assembled integral elastic body seamless expansion joint structure are surrounded to form an open slot (11), and elastic filler (8) is filled in the open slot (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207624 | 2022-03-04 | ||
| CN2022102076245 | 2022-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114855605A CN114855605A (en) | 2022-08-05 |
| CN114855605B true CN114855605B (en) | 2024-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210484158.5A Active CN114855605B (en) | 2022-03-04 | 2022-05-06 | Assembled integral type elastomer seamless expansion joint structure |
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| Country | Link |
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| CN (1) | CN114855605B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206448157U (en) * | 2017-02-14 | 2017-08-29 | 王劲松 | A kind of bridge composite seamless expansion joint |
| CN214695141U (en) * | 2021-04-14 | 2021-11-12 | 四川省交通建设集团股份有限公司 | Viaduct seamless expansion joint structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2738025B2 (en) * | 1989-06-08 | 1998-04-08 | トーメンコンストラクション株式会社 | Seamless expansion joint structure between bridge slabs |
| CN103205922A (en) * | 2013-05-06 | 2013-07-17 | 成都市新筑路桥机械股份有限公司 | Stable element for seamless elastomer extension device |
| CN206828955U (en) * | 2017-06-10 | 2018-01-02 | 李麒 | A kind of bridge composite seamless expansion joint |
| CN207277187U (en) * | 2017-09-23 | 2018-04-27 | 天津市东泽天润建筑有限公司 | A kind of bridge expansion joint installation |
| CN108035245B (en) * | 2017-12-26 | 2019-05-10 | 福州大学 | Novel fabricated seamless expansion-contraction devices and its construction method |
| CN210420854U (en) * | 2019-07-06 | 2020-04-28 | 陈艺 | Compound seamless expansion joint of bridge |
| CN110792035B (en) * | 2019-11-13 | 2021-05-25 | 成都市新筑路桥机械股份有限公司 | Reinforced seamless elastomer expansion device and construction method thereof |
| CN215164619U (en) * | 2021-06-21 | 2021-12-14 | 赵刘洋 | Bridge expansion joint device |
-
2022
- 2022-05-06 CN CN202210484158.5A patent/CN114855605B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206448157U (en) * | 2017-02-14 | 2017-08-29 | 王劲松 | A kind of bridge composite seamless expansion joint |
| CN214695141U (en) * | 2021-04-14 | 2021-11-12 | 四川省交通建设集团股份有限公司 | Viaduct seamless expansion joint structure |
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| Publication number | Publication date |
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| CN114855605A (en) | 2022-08-05 |
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