CN106894335A - Modulus bridge expansion device and its installation method - Google Patents
Modulus bridge expansion device and its installation method Download PDFInfo
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- CN106894335A CN106894335A CN201710277390.0A CN201710277390A CN106894335A CN 106894335 A CN106894335 A CN 106894335A CN 201710277390 A CN201710277390 A CN 201710277390A CN 106894335 A CN106894335 A CN 106894335A
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- Prior art keywords
- bar
- expansion device
- anchor
- bridge expansion
- modulus
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/062—Joints having intermediate beams
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to a kind of modulus bridge expansion device, including two side bars, multiple central sills are provided between two side bars；Each side bar lower section is disposed with multiple supporting displacement casees；Every side bar bottom is all welded with some junction steel plates at a certain distance, every all junction steel plates of side bar bottom are all connected by two horizontal reinforcements, two horizontal reinforcement upper sleeve throughs have some slidable anchor plates, and the anchor plate quantity and position match and are welded to each other with embedded bar；The side of the side of each junction steel plate and each supporting displacement case is designed with anchor bar, is connected by crossing reinforcement welding between all anchor bars embedded bar corresponding with the side of the same side.Present invention seek to address that the dissatisfactory problem of installation difficulty present in prior art, service life, so as to increase the service life, it is to avoid bridge up train safety problem caused by being damaged due to retractor device, improves the service level of road and bridge.
Description
Technical field
The invention belongs to Prestressed Concrete Bridges retractor device installation Technology field, and in particular to a kind of modulus type
Bridge extension joint and its installation method.
Background technology
With the development of China's transport development, science of bridge building proportion in highway is improved constantly, and bridge stretches
Device as bridge main Accessory Members, be ensure one of bridge operation safety and the unimpeded key constructs of highway.Wherein mould
Numerical expression retractor device is exactly a kind of now widely used retractor device, but existing modular expansion device use situation table
Bright, retractor device damage phenomenon is very prominent, changes frequent, and installation difficulty, and potential safety hazard is brought to highway operation
And Socie-economic loss.The failure mode of existing modular expansion device is mainly shown as：Anchorage zone concrete is damaged and come off,
Retractor device side bar is broken and comes off, lateral support displacement case and displacement bar casing come off collapses, the fracture of middle joist steel.Wherein, side
Beam breaking releasing and anchorage zone concrete breakage are particularly acute.
The content of the invention
For above-mentioned technical problem, it is an object of the invention to provide a kind of modulus bridge expansion device and its installation side
Method, it is intended to solve the dissatisfactory problem of installation difficulty present in prior art, service life, so as to increase the service life,
Bridge up train safety problem caused by avoiding being damaged due to retractor device, improves the service level of road and bridge.
To achieve the above object, the technical solution used in the present invention is：
A kind of modulus bridge expansion device, including two side bars, side bar are separately positioned on the both sides at expansion joint；Described two sides
Multiple central sills are provided between beam, are connected using continuous rubber seal tape between each side bar central sill adjacent thereto, adjacent central sill
Between be also adopted by the connection of continuous rubber seal tape；Each side bar lower section is disposed with multiple supporting displacement casees, the supporting displacement
Case is evenly arranged along side bar length direction；It is one group, every group of branch along two corresponding supporting displacement casees of expansion joint width direction
Hold and be designed with displacement case a bearing cross beam, by sliding compression branch between the end of the bearing cross beam and supporting displacement case
Seat is connected with bearing is slided, and compressing support and the slip bearing of sliding is respectively positioned at the top of bearing cross beam with
Portion；The side bar 2 is supported on slip compressing support, and the central sill is resiliently supported on bearing cross beam；
It is characterized in that：Every side bar bottom is all welded with some junction steel plates at a certain distance, every side bar bottom
All junction steel plates are all connected by two horizontal reinforcements, and two horizontal reinforcement upper sleeve throughs have some slidable anchoring steel
Plate, the anchor plate quantity and position match and are welded to each other with embedded bar；The side of each junction steel plate
The side of face and each supporting displacement case is designed with anchor bar, and all anchor bars positioned at the same side are corresponding with the side pre-
Bury and connected by crossing reinforcement welding between reinforcing bar.
Maximum spacing between two adjacent groups supporting displacement case is 1.8 meters.
The installation method of modulus bridge expansion device, it is characterised in that it comprises the following steps：
A, the modulus bridge expansion device that will be completed in advance are placed in expansion joint, whole modulus bridge expansion device
Position, makes its center line be coincided with bridge center line, and top surface absolute altitude coincide with designed elevation；
B, the modulus bridge expansion device that will be adjusted with special mould clamp are fixed；
C, all of slip compressing support of regulation and slip bearing, make the top surface of modulus bridge expansion device smooth；
D, wear to put between anchor bar and embedded bar and cross reinforcing bar, and firm welding, then loosen special mould clamp, make its from
By stretching；
E, by anchor plate adjust to expansion joint embedded bar position and with embedded bar weld；
Epoxy resin concrete filler is poured in F, the gap between modulus bridge expansion device and pontic concrete, is treated
Complete to install after the solidification of epoxy resin concrete filler.
Maximum spacing in the step A between two adjacent groups supporting displacement case is 1.8 meters.
The invention has the advantages that：Present invention seek to address that installation difficulty present in prior art, using the longevity
Dissatisfactory problem is ordered, so as to increase the service life, it is to avoid bridge up train is asked safely caused by being damaged due to retractor device
Topic, improves the service level of road and bridge.（1）The present invention by the side bar in modulus bridge expansion device by junction steel plate,
Horizontal reinforcement and adjustable anchor plate are welded and fixed with the embedded bar on pontic concrete girder, because anchor plate can be with
Used by oneself on horizontal reinforcement and slided, therefore avoid anchor bar and embedded bar in traditional anchorage style and sent out in vertical and horizontal
During raw dislocation, reinforcing bar hardly possible is crossed also cross anchor bar and the situation of embedded bar, substantially increase installation effectiveness.（2）This
Invention is welded with anchor bar on supporting displacement case, when retractor device is installed, makes to cross reinforcing bar and penetrates anchor bar and in advance
It is welded and fixed with anchor bar and embedded bar after burying reinforcing bar, so as to realize supporting the anchoring of displacement case.And exist in traditional method
Scene is interspersed to cross reinforcing bar, and this need to block at supporting displacement case and cross reinforcing bar, is then segmented to intert and crosses reinforcing bar, and this not only gives
Construction is made troubles, and cannot guarantee that anchoring effect.（3）Whole anchor system of the invention is all using welding, pontic and modulus
The anchoring of formula bridge extension joint is very reliable, during retractor device is installed, draws when day and night temperature and concrete shrink in itself
When playing internal force, can equally ensure pontic stress synchronous with retractor device, modulus bridge expansion device can be realized freely stretching, carry
The service life of high mode formula bridge extension joint, it is to avoid bridge up train safety problem caused by being damaged due to retractor device.
Brief description of the drawings
Fig. 1 is the schematic cross-section of modulus bridge expansion device（In figure left and right two it is half of be respectively at junction steel plates and
The section that supporting displacement case goes out）.
Fig. 2 is the schematic top plan view of modulus bridge expansion device.
Reference：1- central sills, 2- side bars, 3- junction steel plates, 4- horizontal reinforcements, 5- embedded bars, 6- anchor bars, 7-
Anchor plate, 8- crosses reinforcing bar, and 9- supporting displacement casees, 10- expansion joints, 11- bearing cross beams, 12- slides compressing support, and 13- is slided
Dynamic bearing, the continuous rubber seal tapes of 14-, 15- epoxy resin concrete fillers, 16- pontic concrete.
Specific embodiment
For a better understanding of the present invention, technical scheme is done further with reference to embodiment and accompanying drawing
Explanation（As shown in Figure 1-2）.
A kind of modulus bridge expansion device, including two side bars 2, side bar 2 are separately positioned on the both sides at expansion joint 10（Two
Individual side bar 2 is positioned opposite）；Multiple central sills 1 are provided between described two side bars 2, between each side bar 2 central sill 1 adjacent thereto
Connected using continuous rubber seal tape 14, continuous rubber seal tape 14 is also adopted by between adjacent central sill 1 and is connected；Under each side bar 2
Side is all disposed with multiple supporting displacement casees 9, and the supporting displacement case 9 is evenly arranged along the length direction of side bar 2（Under two side bars 2
The quantity of the supporting displacement case 9 of side and position are all completely corresponding）；Along two corresponding supporting positions of the width of expansion joint 10
It is one group to move case 9, and a bearing cross beam 11 is designed with every group of supporting displacement case 9（The two ends of bearing cross beam 11 are located at phase respectively
In corresponding two supporting displacements case 9）, by sliding compression branch between the end of the bearing cross beam 11 and supporting displacement case 9
Seat 12 and slip bearing 13 are connected, and the slip compressing support 12 is located at bearing cross beam 11 respectively with bearing 13 is slided
Upper and lower part（Modulus bridge expansion device top surface flatness is adjusted by slip compressing support 12 and slip bearing 13
Section, such as top surface usually, should not check slip compressing support 12 and slide whether bearing 13 has damage, and carry out in time more
Change）；The side bar 2 is supported on slip compressing support 12, and the central sill 1 is resiliently supported on bearing cross beam 11；
The every bottom of side bar 2 is all welded with some junction steel plates 3, every all connections of the bottom of side bar 2 at a certain distance
Steel plate 3 is all connected by two horizontal reinforcements 4, on two horizontal reinforcements 4（Uniformly）It is coated with some slidable anchorings
Steel plate 7, the quantity of the anchor plate 7 and position match and are welded to each other with embedded bar 5（Anchor plate 7 can be along
The horizontal reinforcement 4 of lateral arrangement is moved, and is adjusted anchor plate 7 to the position of embedded bar 5 during construction and is welded with embedded bar 5
Connect, realize being reliably connected for side bar 2 and embedded bar 5）；The side of each junction steel plate 3 and each supporting displacement case 9
Side is designed with anchor bar 6, by horizontal stroke between the embedded bar 5 corresponding with the side of all anchor bars 6 of the same side
Reinforcing bar 8 is worn to be welded to connect（Using crossing reinforcing bar 8 through anchor bar 6 and embedded bar 5 and welding, realize supporting displacement case 9
With effective connection of embedded bar 5）.
Maximum spacing between two adjacent groups supporting displacement case 9 is 1.8 meters.
The installation method of modulus bridge expansion device, it comprises the following steps：
A, the modulus bridge expansion device that will be completed in advance are placed in expansion joint 10, whole modulus bridge expansion device
Position, its center line is coincided with bridge center line, top surface absolute altitude and designed elevation are coincide（Modulus bridge expansion device
Before the installation of upper bridge, according to real-time temperature adjustment assembling locator value）；
B, the modulus bridge expansion device that will be adjusted with special mould clamp are fixed；
C, all of slip compressing support 12 of regulation and slip bearing 13, put down the top surface of modulus bridge expansion device
It is whole；
D, wear to put between anchor bar 6 and embedded bar 7 and cross reinforcing bar 8, and firm welding, then loosen special mould clamp, make
It freely stretches；
E, anchor plate 7 is adjusted the position of embedded bar 5 to expansion joint 10 and is welded with embedded bar 5；
Epoxy resin concrete filler is poured in F, the gap between modulus bridge expansion device and pontic concrete 16
15, installed after completion after the solidification of epoxy resin concrete filler 15.
Maximum spacing in the step A between two adjacent groups supporting displacement case 9 is 1.8 meters.
Described above is only Application Example of the invention, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalence changes made according to scope of the present invention patent, still belong to protection scope of the present invention.
Claims (4)
1. a kind of modulus bridge expansion device, including two side bars, side bar is separately positioned on the both sides at expansion joint；It is described two
Multiple central sills are provided between side bar, between each side bar central sill adjacent thereto using continuous rubber seal tape connect, it is adjacent in
Continuous rubber seal tape connection is also adopted by between beam；Each side bar lower section is disposed with multiple supporting displacement casees, the supporting position
Case is moved to be evenly arranged along side bar length direction；It it is one group, every group along two corresponding supporting displacement casees of expansion joint width direction
A bearing cross beam is designed with supporting displacement case, by sliding compression between the end of the bearing cross beam and supporting displacement case
Bearing and slide bearing connection, it is described slide compressing support and slide bearing respectively positioned at bearing cross beam top and
Bottom；The side bar 2 is supported on slip compressing support, and the central sill is resiliently supported on bearing cross beam；
It is characterized in that：Every side bar bottom is all welded with some junction steel plates at a certain distance, every side bar bottom
All junction steel plates are all connected by two horizontal reinforcements, and two horizontal reinforcement upper sleeve throughs have some slidable anchoring steel
Plate, the anchor plate quantity and position match and are welded to each other with embedded bar；The side of each junction steel plate
The side of face and each supporting displacement case is designed with anchor bar, and all anchor bars positioned at the same side are corresponding with the side pre-
Bury and connected by crossing reinforcement welding between reinforcing bar.
2. modulus bridge expansion device according to claim 1, it is characterised in that：Between two adjacent groups supporting displacement case
Maximum spacing be 1.8 meters.
3. the installation method of modulus bridge expansion device according to claim 1, it is characterised in that it includes following step
Suddenly：
A, the modulus bridge expansion device that will be completed in advance are placed in expansion joint, whole modulus bridge expansion device
Position, makes its center line be coincided with bridge center line, and top surface absolute altitude coincide with designed elevation；
B, the modulus bridge expansion device that will be adjusted with special mould clamp are fixed；
C, all of slip compressing support of regulation and slip bearing, make the top surface of modulus bridge expansion device smooth；
D, wear to put between anchor bar and embedded bar and cross reinforcing bar, and firm welding, then loosen special mould clamp, make its from
By stretching；
E, by anchor plate adjust to expansion joint embedded bar position and with embedded bar weld；
Epoxy resin concrete filler is poured in F, the gap between modulus bridge expansion device and pontic concrete, is treated
Complete to install after the solidification of epoxy resin concrete filler.
4. the installation method of modulus bridge expansion device according to claim 3, it is characterised in that：In the step A
Maximum spacing between two adjacent groups supporting displacement case is 1.8 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277390.0A CN106894335A (en) | 2017-04-25 | 2017-04-25 | Modulus bridge expansion device and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277390.0A CN106894335A (en) | 2017-04-25 | 2017-04-25 | Modulus bridge expansion device and its installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106894335A true CN106894335A (en) | 2017-06-27 |
Family
ID=59196989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710277390.0A Pending CN106894335A (en) | 2017-04-25 | 2017-04-25 | Modulus bridge expansion device and its installation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106894335A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299590A (en) * | 2017-07-07 | 2017-10-27 | 中铁第四勘察设计院集团有限公司 | Double-joint shallow shaped steel formula bridge extension joint |
| CN109778691A (en) * | 2019-03-14 | 2019-05-21 | 中铁第四勘察设计院集团有限公司 | Steel bomb physique beam type profile steel bridge expansion device |
| CN112900251A (en) * | 2021-01-21 | 2021-06-04 | 秦利琼 | Anchoring device for waterproof expansion joint of highway and using method thereof |
| CN113957786A (en) * | 2021-11-02 | 2022-01-21 | 苏交科集团股份有限公司 | Telescopic deformation coordination structure for beam end of assembled bridge and mounting method thereof |
| CN114232471A (en) * | 2022-01-19 | 2022-03-25 | 贵州省交通规划勘察设计研究院股份有限公司 | Assembly modular expansion device |
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| JP2002322606A (en) * | 2001-04-27 | 2002-11-08 | Nitta Ind Corp | Expansion joint for bridge |
| CN104452580A (en) * | 2014-11-24 | 2015-03-25 | 贵州省交通规划勘察设计研究院股份有限公司 | Bridge modular pattern telescopic device anchoring method and structure |
| CN104532741A (en) * | 2014-12-25 | 2015-04-22 | 贵州省交通规划勘察设计研究院股份有限公司 | Modular telescopic device with adjustable annular steel |
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| CN105442440A (en) * | 2015-12-31 | 2016-03-30 | 中国一冶集团有限公司 | Cross-linking-type curved-beam-bridge combined expansion joint |
| CN205188806U (en) * | 2015-11-28 | 2016-04-27 | 河北建业工程橡胶有限公司 | Modulus formula telescoping device |
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| JP2002322606A (en) * | 2001-04-27 | 2002-11-08 | Nitta Ind Corp | Expansion joint for bridge |
| CN104452580A (en) * | 2014-11-24 | 2015-03-25 | 贵州省交通规划勘察设计研究院股份有限公司 | Bridge modular pattern telescopic device anchoring method and structure |
| CN104532741A (en) * | 2014-12-25 | 2015-04-22 | 贵州省交通规划勘察设计研究院股份有限公司 | Modular telescopic device with adjustable annular steel |
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| CN205188806U (en) * | 2015-11-28 | 2016-04-27 | 河北建业工程橡胶有限公司 | Modulus formula telescoping device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299590A (en) * | 2017-07-07 | 2017-10-27 | 中铁第四勘察设计院集团有限公司 | Double-joint shallow shaped steel formula bridge extension joint |
| CN109778691A (en) * | 2019-03-14 | 2019-05-21 | 中铁第四勘察设计院集团有限公司 | Steel bomb physique beam type profile steel bridge expansion device |
| CN112900251A (en) * | 2021-01-21 | 2021-06-04 | 秦利琼 | Anchoring device for waterproof expansion joint of highway and using method thereof |
| CN113957786A (en) * | 2021-11-02 | 2022-01-21 | 苏交科集团股份有限公司 | Telescopic deformation coordination structure for beam end of assembled bridge and mounting method thereof |
| CN113957786B (en) * | 2021-11-02 | 2024-02-02 | 苏交科集团股份有限公司 | Assembled bridge end expansion deformation coordination structure and installation method thereof |
| CN114232471A (en) * | 2022-01-19 | 2022-03-25 | 贵州省交通规划勘察设计研究院股份有限公司 | Assembly modular expansion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170627 |
|
| RJ01 | Rejection of invention patent application after publication |