CN114277676A - Unit cover plate assembled bridge telescoping device - Google Patents
Unit cover plate assembled bridge telescoping device Download PDFInfo
- Publication number
- CN114277676A CN114277676A CN202111678483.7A CN202111678483A CN114277676A CN 114277676 A CN114277676 A CN 114277676A CN 202111678483 A CN202111678483 A CN 202111678483A CN 114277676 A CN114277676 A CN 114277676A
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- cover plate
- shear spring
- sliding support
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009434 installation Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 12
- 238000010276 construction Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 244000126211 Hericium coralloides Species 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Images
Abstract
The invention discloses a unit cover plate assembly type bridge expansion device, which comprises an expansion joint preassembly structure and an assembly type expansion joint sliding displacement structure group, wherein the expansion joint preassembly structure comprises: the expansion joint pre-installation structure is formed by welding an anchor ring, an anchor nail, a shear spring pressing plate and an expansion joint assembling groove, and pouring concrete after the expansion joint pre-installation structure is welded with expansion joint pre-embedded steel bars; assembled expansion joint structure group that shifts that slides, by expansion joint cover, shear spring, last sliding support, lower sliding support, the box that slides, form through set screw, fixing bolt assembly, the during operation realizes the telescoping device function of shifting through sliding support sliding on the box that slides, realizes the telescoping device function of resetting through the shear spring deformation.
Description
Technical Field
The invention belongs to the technical field of bridge engineering, and particularly relates to a unit cover plate assembly type bridge expansion device.
Background
At present, bridge expansion devices used for highway bridges mainly adopt two structural forms, namely a modulus type and a comb plate type, and have the characteristics respectively. The modular expansion joint is a highway bridge expansion joint structure introduced and digested from abroad, and is a bridge expansion joint device designed by hot-rolled integrally-formed deformed steel, and consists of side beams, a middle beam, cross beams, a displacement control system, a sealing rubber belt and other members. The bearing structure and the displacement control system of the modular expansion joint are separated, the bearing structure and the displacement control system are not interfered with each other when being stressed, the modular expansion joint has the characteristics of strong multidirectional displacement capacity, simplicity and convenience in installation, long service life and the like, can meet the use requirements of various bridge structures, and has obvious advantages in the aspects of bearing capacity and long service life. The comb plate type expansion joint is developed on the basis of the expansion joint of the early serration plate in China and mainly comprises a comb tooth type small plate, a stainless steel sliding plate, a rubber waterproof plate, an anchoring bolt and the like. Its main features are large expansion and contraction amount of expansion joint, simple installation, comfortable running, large steel consumption, high cost and easy loosening and falling of connected bolts or rivets.
In long-term practical application, the bridge expansion device with the two structural forms can generate diseases of different degrees due to a plurality of reasons such as design, production, construction and the like. When the defects are treated, due to the integral structure of the telescopic device, the defects cannot be thoroughly solved through local maintenance and replacement, the old telescopic device is usually dismantled first, and then the maintenance or replacement causes a long construction period, so that great potential safety hazards are brought to driving.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a unit cover plate assembly type bridge expansion device, which comprises an expansion joint preassembly structure and an assembly type expansion joint sliding displacement structure group, wherein the expansion joint preassembly structure comprises:
the expansion joint pre-installation structure is formed by welding an anchor ring, an anchor nail, a shear spring pressing plate and an expansion joint assembling groove, and pouring concrete after the expansion joint pre-installation structure is welded with expansion joint pre-embedded steel bars;
assembled expansion joint structure group that shifts that slides, by expansion joint cover, shear spring, last sliding support, lower sliding support, the box that slides, form through set screw, fixing bolt assembly, the during operation realizes the telescoping device function of shifting through sliding support sliding on the box that slides, realizes the telescoping device function of resetting through the shear spring deformation.
Furthermore, an assembly U-shaped notch is formed in the expansion joint reserved groove for the bridge expansion device, the U-shaped groove is integrally or sectionally manufactured, an anchor ring and an anchor nail are welded on the outer side of the U-shaped groove, a shear spring pressing plate is welded on the inner side of the U-shaped groove, and the U-shaped groove serves as an assembly foundation to enable rainwater to be drained to one side of the bridge.
Furthermore, the sliding box is of an integral welding type or an upper cover bolted connection type structure and is used for replacing an upper sliding support and a lower sliding support and bolt accessories, the upper sliding support is a support sliding block and is connected with the upper part of the sliding box and a cover plate through bolts, and the lower sliding support is a compression sliding support and is positioned on the inner side of the sliding box and is contacted with an upper cover of the sliding box; the shear spring is a cylindrical rubber body, the lower part of the shear spring is connected with a U-shaped notch bolt, and the upper part of the shear spring is connected with a cover plate bolt.
Furthermore, water intercepting grooves are formed in the two ends of the cover plate in a carved mode, so that rainwater can flow to the U-shaped grooves from the water intercepting grooves, and the rainwater is prevented from flowing into the joint of the cover plate.
The unit cover plate assembly type bridge expansion device provided by the invention has an assembly type structure, and the main structure and components of the unit cover plate assembly type bridge expansion device can be installed on site through fixing bolts, so that the construction progress can be greatly improved. When the expansion device is damaged, the concrete does not need to be chiseled off, the old expansion device is dismantled, the bolt only needs to be unscrewed, the expansion joint cover plate is opened, the main parts and the wearing parts are maintained and replaced, the construction period can be greatly shortened, and the potential safety hazard is reduced.
Drawings
FIG. 1 is a cross-sectional view of a unit decking fabricated bridge girder telescoping device;
fig. 2 is a top view of a unit deck assembled bridge expansion device.
Description of reference numerals:
the expansion joint assembling groove comprises an expansion joint assembling groove 1, an expansion joint cover plate 2, a shear spring 3, an upper sliding support 4, a lower sliding support 5, a fixing screw 6, an anchor 7, a shear spring pressing plate 8, a sliding box body 9, an anchor ring 10, a first fixing bolt 11, a second fixing bolt 12, a support pressing plate 13 and a water intercepting groove 14.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, a unit cover assembled bridge expansion device provided by the present invention will be described in detail with reference to the following embodiments. The following examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
The invention provides a unit cover plate assembly type bridge expansion device which comprises devices and mechanisms such as an anchor ring, an anchor, a shear spring, an assembly groove, a cover plate, a shear spring, a sliding support, a sliding box body, a fixing screw rod and a fixing bolt. The expansion joint is characterized in that the expansion device is designed into an assembly type structure, the integral assembly groove and the bridge embedded steel bar are welded and concrete is poured, and then the shear spring, the sliding mechanism and the expansion joint cover plate are installed on the assembly groove through the anchoring bolt, so that the requirement of uniform displacement of the expansion joint can be well met. Compared with the existing telescopic device, the invention is an assembly type structure, the assembly groove can be constructed in advance, the main structure and the components can be installed on site through the fixing bolts, and the construction progress can be greatly improved. When the expansion device is damaged, the concrete does not need to be chiseled off, the old expansion device is dismantled, the bolt only needs to be unscrewed, and the expansion joint cover plate is opened, so that the main parts and the wearing parts can be maintained and replaced, the construction period can be greatly shortened, and the potential safety hazard is reduced.
Example 1
A unit cover plate assembly type bridge expansion device is shown in figure 1 and comprises two parts. The first part is an expansion joint embedded structure and is formed by welding an anchor ring 10, an anchor 7, a shear spring pressing plate 8 and an expansion joint assembly groove 1. The second part is an assembly type expansion joint sliding displacement structure group, which is formed by assembling an expansion joint cover plate 2, a shear spring 3, an upper sliding support 4, a lower sliding support 5 and a sliding box body 9 through a fixing screw 6, a first fixing bolt 11 and a second fixing bolt 12, and the upper part of the expansion joint cover plate 2 is provided with a water intercepting groove.
The specific implementation principle is as follows: the expansion joint pre-installation structure is formed by welding an anchor ring 10, an anchor 7, a shear spring pressing plate 8 and an expansion joint assembly groove 1, and concrete is poured after the expansion joint pre-installation structure is welded with expansion joint pre-embedded steel bars. The shear spring 3 is sequentially connected with the shear spring pressing plate 8 through the fixing screw 6, and the upper part of the shear spring 3 is connected with the expansion joint cover plate 2 and fixed through the second anchoring bolt 12. U-shaped notch is opened at the top of box 9 that slides, sets up the stainless steel slide from top to bottom in the notch to weld with expansion joint assembly groove 1, loop through first anchor bolt 11 and be connected support clamp plate 13, lower sliding support 5, box 9 that slides, upper sliding support 4, expansion joint cover 2 anchor.
The bridge structure is influenced by materials and temperature to generate displacement, the beam body drives the expansion joint assembly groove and the sliding box body 9 to displace along with the expansion joint assembly groove, and the expansion joint cover plate 2 generates relative displacement in a U-shaped notch in the sliding box body 9 through a fixing bolt and an upper sliding support and a lower sliding support, so that the displacement function of the expansion device is realized; when the bridge generates telescopic displacement, the assembly grooves on the two sides pull or push the corresponding shear springs 3 to generate shearing deformation in opposite directions, under the action of shearing force, the gaps on the two sides of the cover plate 2 are ensured to be uniform, and the expansion joint cover plate 2 can be manufactured into a unit structure. When the expansion joint is installed, the assembly groove can be constructed in advance, the main structure and the components can be installed on site through the fixing bolts, and the construction progress can be greatly improved. When the expansion device is damaged, the concrete structure does not need to be dismantled, and the expansion joint cover plate is directly opened for maintenance and replacement, so that the maintenance and replacement time and cost are greatly reduced.
The present invention is not limited to the above-described examples, and various changes can be made without departing from the spirit and scope of the present invention within the knowledge of those skilled in the art.
Claims (4)
1. The utility model provides a unit apron assembled bridge telescoping device which characterized in that slides and shifts structure group including expansion joint pre-installation structure and assembled expansion joint, wherein:
the expansion joint pre-installation structure is formed by welding an anchor ring, an anchor nail, a shear spring pressing plate and an expansion joint assembling groove, and pouring concrete after the expansion joint pre-installation structure is welded with expansion joint pre-embedded steel bars;
assembled expansion joint structure group that shifts that slides, by expansion joint cover, shear spring, last sliding support, lower sliding support, the box that slides, form through set screw, fixing bolt assembly, the during operation realizes the telescoping device function of shifting through sliding support sliding on the box that slides, realizes the telescoping device function of resetting through the shear spring deformation.
2. The unit cover plate assembly type bridge expansion device according to claim 1, wherein a U-shaped assembling notch is formed in the expansion joint reserved groove, the U-shaped groove is integrally or sectionally manufactured, an anchor ring and an anchor nail are welded on the outer side of the U-shaped groove, a shear spring pressing plate is welded on the inner side of the U-shaped groove, and the U-shaped groove serves as an assembly foundation to drain rainwater to one side of the bridge.
3. The unit cover plate assembled bridge expansion device of claim 1, wherein the sliding box is of an integrally welded type or an upper cover bolted type structure, and is used for replacing an upper sliding support and a lower sliding support and bolt fittings, the upper sliding support is a support sliding block and is connected with the upper part of the sliding box and the cover plate bolt, the lower sliding support is a compression sliding support and is positioned at the inner side of the sliding box body and is contacted with the upper cover of the sliding box body; the shear spring is a cylindrical rubber body, the lower part of the shear spring is connected with a U-shaped notch bolt, and the upper part of the shear spring is connected with a cover plate bolt.
4. The unit cover assembled bridge girder extension device of claim 1, wherein cut-off grooves are engraved at both ends of the cover plate to allow rainwater to flow from the cut-off grooves to the U-shaped groove, preventing rainwater from flowing in at the joint of the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678483.7A CN114277676B (en) | 2021-12-31 | 2021-12-31 | Unit cover plate assembled bridge telescoping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111678483.7A CN114277676B (en) | 2021-12-31 | 2021-12-31 | Unit cover plate assembled bridge telescoping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114277676A true CN114277676A (en) | 2022-04-05 |
| CN114277676B CN114277676B (en) | 2024-03-19 |
Family
ID=80879864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111678483.7A Active CN114277676B (en) | 2021-12-31 | 2021-12-31 | Unit cover plate assembled bridge telescoping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114277676B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10298928A (en) * | 1997-04-24 | 1998-11-10 | Bridgestone Corp | Fitting method for buried joint member of road bridge |
| JP2005325611A (en) * | 2004-05-14 | 2005-11-24 | Abc Trading Co Ltd | Connection structure of construction section |
| CA2709128A1 (en) * | 2007-12-14 | 2009-06-25 | Construction Research & Technology Gmbh | Expansion joint system |
| CN206570686U (en) * | 2017-03-09 | 2017-10-20 | 衡水旗舰桥隧橡塑有限公司 | Leg device is stuck up with anti-in a kind of broach expansion joint |
| CN207646604U (en) * | 2017-12-12 | 2018-07-24 | 衡水双盛工程橡胶有限公司 | Leveling multi-directional deflection comb plate, comb joint bridge extension joint is turned up in unit assembled damping |
| KR101912363B1 (en) * | 2018-02-19 | 2018-10-26 | 주식회사 지엠로드 | Repairing method of expansion joint for bridge top plate and Extension joint bonjour1replacement assembly |
| CN110847028A (en) * | 2019-11-21 | 2020-02-28 | 北京特希达交通勘察设计院有限公司 | Automatic pavement expansion joint device that adapts to difference in height and shifts |
| CN211571382U (en) * | 2019-12-17 | 2020-09-25 | 靳晓瑜 | Road bridge expansion joint structure |
| CN111945557A (en) * | 2020-07-22 | 2020-11-17 | 山西省交通新技术发展有限公司 | Movable tooth end pressing plate type telescopic device for highway bridge |
| KR102202700B1 (en) * | 2020-07-31 | 2021-01-13 | 대봉비엠텍 주식회사 | Non-drain sheet type finger type expansion joint |
| CN213681706U (en) * | 2020-10-29 | 2021-07-13 | 山西省交通新技术发展有限公司 | Noise-reducing anti-seismic multidirectional-displacement comb plate type telescopic device |
-
2021
- 2021-12-31 CN CN202111678483.7A patent/CN114277676B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10298928A (en) * | 1997-04-24 | 1998-11-10 | Bridgestone Corp | Fitting method for buried joint member of road bridge |
| JP2005325611A (en) * | 2004-05-14 | 2005-11-24 | Abc Trading Co Ltd | Connection structure of construction section |
| CA2709128A1 (en) * | 2007-12-14 | 2009-06-25 | Construction Research & Technology Gmbh | Expansion joint system |
| CN206570686U (en) * | 2017-03-09 | 2017-10-20 | 衡水旗舰桥隧橡塑有限公司 | Leg device is stuck up with anti-in a kind of broach expansion joint |
| CN207646604U (en) * | 2017-12-12 | 2018-07-24 | 衡水双盛工程橡胶有限公司 | Leveling multi-directional deflection comb plate, comb joint bridge extension joint is turned up in unit assembled damping |
| KR101912363B1 (en) * | 2018-02-19 | 2018-10-26 | 주식회사 지엠로드 | Repairing method of expansion joint for bridge top plate and Extension joint bonjour1replacement assembly |
| CN110847028A (en) * | 2019-11-21 | 2020-02-28 | 北京特希达交通勘察设计院有限公司 | Automatic pavement expansion joint device that adapts to difference in height and shifts |
| CN211571382U (en) * | 2019-12-17 | 2020-09-25 | 靳晓瑜 | Road bridge expansion joint structure |
| CN111945557A (en) * | 2020-07-22 | 2020-11-17 | 山西省交通新技术发展有限公司 | Movable tooth end pressing plate type telescopic device for highway bridge |
| KR102202700B1 (en) * | 2020-07-31 | 2021-01-13 | 대봉비엠텍 주식회사 | Non-drain sheet type finger type expansion joint |
| CN213681706U (en) * | 2020-10-29 | 2021-07-13 | 山西省交通新技术发展有限公司 | Noise-reducing anti-seismic multidirectional-displacement comb plate type telescopic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114277676B (en) | 2024-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103147391B (en) | One is easy to shake rear reparation and corrosion resistant self-centering bridge pier structure | |
| CN2784490Y (en) | Prestress connection node for beam column of assembled concrete frame structure | |
| CN108193607B (en) | A kind of reinforce uses prefabricated PC truss and its construction method | |
| CN111021232A (en) | Double-column type self-resetting concrete filled steel tube pier with replaceable energy-consuming corrugated steel connecting beam | |
| CN109797716B (en) | Anti-leakage aqueduct and construction method thereof | |
| CN209555753U (en) | The anti-fall beam construction of pier monoblock type on a kind of arch | |
| CN114263098A (en) | Mortise and tenon type self-resetting pier with half-moon-shaped energy dissipater | |
| JP2734987B2 (en) | Existing bridge repair method | |
| CN106758750B (en) | Concrete-filled steel tube truss combination beam and construction method with replaceable floorings | |
| CN216586154U (en) | Unit cover plate assembled bridge telescoping device | |
| CN112211088A (en) | Single-span integral seamless bridge structure adopting steel box combination beam and construction method | |
| CN114277676A (en) | Unit cover plate assembled bridge telescoping device | |
| CN109853377A (en) | Using the continuously coupled structure of the bridge floor of ultra-high performance concrete and its construction method | |
| KR20050018358A (en) | Structure of continuous PSC beam with connection member and steel cross beam and bridge construction method using the same | |
| CN214737322U (en) | Assembled mound roof beam concreties structure | |
| CN211947909U (en) | Double-column type self-resetting concrete filled steel tube pier with replaceable energy-consuming corrugated steel connecting beam | |
| KR200189311Y1 (en) | A psc beam having above typed anchor blocks | |
| CN112853934A (en) | Novel energy-consuming and shock-absorbing type inter-tower linkage structure of framing tower-connected cable-stayed bridge | |
| CN106978908B (en) | Embedded prestress assembly type frame reinforcing structure with shearing mild steel damper | |
| CN215051998U (en) | Novel energy-consuming and shock-absorbing type inter-tower linkage structure of framing tower-connected cable-stayed bridge | |
| CN217052996U (en) | High damping rubber-hourglass shaped steel supports combination formula power consumption structure | |
| CN217174348U (en) | C-shaped steel-friction damper combined energy dissipation structure | |
| CN114622483B (en) | Assembled swinging pier with built-in energy dissipation device and prefabricating and assembling method thereof | |
| CN220813422U (en) | Single-column pier anti-overturning structure | |
| CN211037377U (en) | Eccentric supporting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |