CN109853376A - A kind of expansion joint structure and its construction method of connecting plate-abutment parados combination - Google Patents
A kind of expansion joint structure and its construction method of connecting plate-abutment parados combination Download PDFInfo
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- CN109853376A CN109853376A CN201910239403.4A CN201910239403A CN109853376A CN 109853376 A CN109853376 A CN 109853376A CN 201910239403 A CN201910239403 A CN 201910239403A CN 109853376 A CN109853376 A CN 109853376A
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- abutment
- parados
- connecting plate
- reinforcing bar
- girder
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- 238000010276 construction Methods 0.000 title claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 40
- 238000009408 flooring Methods 0.000 claims abstract description 31
- 238000003032 molecular docking Methods 0.000 claims abstract description 30
- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 30
- 239000004567 concrete Substances 0.000 claims description 12
- 238000011065 in-situ storage Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000004574 high-performance concrete Substances 0.000 description 4
- 238000009527 percussion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The present invention relates to a kind of connecting plate-abutment parados combination expansion joint structures, including abutment abutment body, the upper support of the abutment abutment body is provided with girder, the upper surface of the girder is provided with floorings, the end of the girder is provided with the docking plate body above abutment abutment body, it is connected with each other between the horizontal segment end and floorings end of the docking plate body through reinforcing bar, ultra-high performance concrete linkage section, is connected with each other between the vertical section end and abutment abutment body of the docking plate body through reinforcing bar, ultra-high performance concrete linkage section.The structure of the connecting plate-abutment parados combination expansion joint structure is simple.
Description
Technical field
The present invention relates to a kind of connecting plate-abutment parados combination expansion joint structures and its construction method.
Background technique
Jump brought by bridge expanssion joint vehicle and due to the damage of expansion joint the secondary adverse effect of bring (such as structure it is additional
Internal force, leak are to corrosion of structure etc.) it is the thorny problem that current domestic and abroad bridge is frequently encountered in actual operations.Due to
Jump vehicle caused by telescopic device not only causes very big percussion to bridge, but also the driving that can reduce driver and passenger is relaxed
Appropriateness.In addition, maintenance and replacement to expansion gap device often will cause serious traffic with the increasingly increase of the magnitude of traffic flow
It interrupts, and then generates huge economic loss.It can be seen that solving bridge expanssion joint bring a series of problems has been gesture must
Row.Solve the problems, such as usually there is following two thinking for expansion joint at present: first is that improvement telescopic device.Telescopic device class at present
There are many type, service life generally within 5 years, but improve telescopic device, there is no thoroughly eliminate telescopic device maintenance and
Replacement problem, so improvement telescopic device is palliative.Second is that fundamentally solving the problems, such as telescopic device, pass through reduction
Deck expansion installation cancels bridge extension joint.Using extend floorings abutment jointless bridge (hereinafter referred to as: extend
Bridge floor slab bridge) it comes into being.Extending between the girder and abutment of floorings abutment has expansion joint, to adapt to the dilatation of girder
It needs, soil pressure is undertaken by abutment parados after platform, and girder does not undertake；Floorings are connected to extension after platform with corbel back slab, across
And the expansion joint between girder and abutment is covered, cancel telescopic device；Cover the extension floorings at expansion joint, referred to as connecting plate.Prolong
Deck expansion installation can be cancelled in the case where not changing the vertical freely-supported stress of girder by stretching bridge floor slab bridge, superstructure it is vertical by
Power and the close routine of deformation characteristics have expansion joint bridge, are easy to be received by engineer；Simple structure, it is easy for construction；Do not have again
Telescopic device saves telescopic device construction, maintenance and maintenance cost, improves driving stationarity, lowers impact of the driving to bridge
Load.Due to eliminating the telescopic device between abutment parados and girder, beam body is due to temperature deformation, concrete shrinkage and creep etc.
The stroke of generation is absorbed by connecting plate and abutment parados composite construction.Girder temperature movement deformation is not passed to lower part
Structure, the structure-soil interaction for avoiding complexity influence and deform constrained generated internal force and generate not to girder
Benefit influences.Compared with other type jointless bridges, extend floorings bridge can building length it is longer；To substructure and
The requirement of soil and soil around pile is lower after platform, and the scope of application is wider；It is applicable not only to newly building bridge, applies also for the nothing of existing bridge
Seamization transformation, the existing bridge that especially substructure drawing lacks or geologic information is unknown.
Connecting plate and abutment parados composite construction are the weak links for extending floorings bridge structure.Itself with regard to structure,
Since girder is simply supported beam, the one end of the connection board for extending floorings Abutment connects girder, and the other end connects abutment parados and platform
After banket, i.e., the stiffness of structural member that is connected of both ends is asymmetric, and stress condition is increasingly complex.Currently, largely using company at bridge pier
Continuous beam cancels expansion joint and telescopic device, and girder temperature movement deformation will more be transferred to Abutment, and more easily cause Abutment
The damage of telescopic device.Connecting plate is located at the rigidity mutation of superstructure, not only to bear girder temperature movement displacement transfer
And the vertical bridge come still suffers from the end of main beam rotational deformation of the vertical loads such as automobile generation and the concentrated force of wheel to deformation
With percussion, stress is complicated, and it is improper to design, construct and conserve, and can cause to crack.Since connecting plate is by hogging moment shadow
It rings, when design bears top vehicular impact load without sufficiently longitudinally reinforcing bar, connection board concrete necessarily leads to crack.With
Using the time growth, or even the diseases such as fragmentation, local pit slot can be developed into, not only break up the ride comfort of bridge floor, can also make
Rainwater penetrates into support, bent cap etc., causes steel bar corrosion and concrete through freeze-thaw test inside abutment.
Summary of the invention
In view of the deficiencies in the prior art, technical problem to be solved by the invention is to provide a kind of connecting plate-abutment parados
Combined expansion joint structure and its construction method.
In order to solve the above-mentioned technical problem, the technical scheme is that a kind of connecting plate-abutment parados combination is flexible
Seam construction, including abutment abutment body, the upper support of the abutment abutment body are provided with girder, and the upper surface of the girder is provided with bridge
Panel, the end of the girder are provided with the docking plate body above abutment abutment body, the horizontal segment end of the docking plate body
It is connected with each other between floorings end through reinforcing bar, ultra-high performance concrete linkage section, the vertical section end of the docking plate body
It is connected with each other between abutment abutment body through reinforcing bar, ultra-high performance concrete linkage section.
Preferably, the support of support is provided between the girder and abutment abutment body.
Preferably, there is spacing, the girder upper surface in the spacing is formed between the floorings end and end of main beam
To support the supporting plane of the horizontal segment of docking plate body.
Preferably, the docking plate body is by horizontal ultra-high performance concrete connecting plate, vertical very-high performance coagulation
The L shape structure of native abutment parados composition one.
Preferably, horizontal segment end, the vertical section end of the docking plate body are extended with the first reinforcing bar, floorings outward
End, abutment abutment body upper surface are extended with the second reinforcing bar mutually to weld with the first reinforcing bar outward.
Preferably, adhesive-less layer is provided between the horizontal segment and supporting plane of the docking plate body, adhesive-less layer also position
Below the ultra-high performance concrete linkage section of docking plate body horizontal segment.
A kind of construction method of the expansion joint structure of connecting plate-abutment parados combination, sequentially includes the following steps: (1) by surpassing
High performance concrete connecting plate-abutment parados combination docking plate body is steam-cured using prefabricated and high-temperature pressurizing, when guaranteeing its maintenance
Between must not be lower than the completion to guarantee ultra-high performance concrete early-age shrinkage Yu creep in 15 days, dock plate body horizontal segment end,
The pre-buried stretching reinforcing bar in vertical section end, the extension elongation of reinforcing bar should meet welded connecting and require；(2) pre- using normal concrete
System or cast in situs girder, floorings and abutment abutment body, in floorings end along vertical bridge to stretching reinforcing bar, the table on abutment abutment body
Reinforcing bar is vertically stretched out in face；(3) support is arranged on abutment abutment body, girder is placed on support；(4) it is set in girder upper surface
Set adhesive-less layer；(5) ultra-high performance concrete connecting plate-abutment parados combination is sent by Traditional Transportation mode existing to construction
, horizontal segment is placed in above adhesive-less layer, guarantees two end faces of ultra-high performance concrete connecting plate-abutment parados combination
Stretching reinforcing bar is in along vertical bridge to the vertical stretching reinforcing bar for stretching out reinforcing bar and abutment abutment body upper surface with floorings end respectively can
The position of welded connecting, and welded；(6) cast in situs ultra-high performance concrete linkage section, ultra-high performance concrete is connected
Fishplate bar-abutment parados combination and the floorings and abutment abutment body of girder are combined together and become an overall structure.
Preferably, in step (5), before the reinforcement welding of abutment parados end and abutment abutment body, abutment parados end with
It needs to be arranged temporary support between abutment abutment body and carries out temporary support.
Compared with prior art, the invention has the following advantages: the connecting plate-abutment parados combination expansion joint structure
The structure made is simple, by guaranteeing girder-abutment using the tension of ultra-high performance concrete linkage section, bending resistance and cracking resistance
Connecting plate-abutment parados composite construction at node is perpendicular in the vertical bridge Xiang Zuoyong such as temperature change, concrete shrinkage and creep, automobile etc.
Crack is not generated under the concentrated force and percussion of the end of main beam rotational deformation, wheel that generate to load；Pass through very-high performance
The compactness and low porosity characteristic of concrete avoid the moisture penetration from entering connecting plate-abutment parados composite construction；It is anti-to improve it
Corrosive nature extends the construction service life.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the organigram of the embodiment of the present invention.
Fig. 2 is the Construction State schematic diagram one of the embodiment of the present invention.
Fig. 3 is the Construction State schematic diagram two of the embodiment of the present invention.
Fig. 4 is the Construction State schematic diagram three of the embodiment of the present invention.
Specific embodiment
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and cooperate attached drawing, make detailed
Carefully it is described as follows.
As shown in Fig. 1 ~ 4, a kind of expansion joint structure of connecting plate-abutment parados combination, including abutment abutment body 1, the bridge
The upper support of platform abutment body is provided with girder 2, and the upper surface of the girder is provided with floorings 3, the end setting of the girder
Have be located at abutment abutment body above docking plate body, it is described docking plate body horizontal segment end and floorings end between through reinforcing bar,
Ultra-high performance concrete linkage section 4 is connected with each other, through reinforcing bar, super between the vertical section end and abutment abutment body of the docking plate body
High performance concrete linkage section is connected with each other.
In embodiments of the present invention, the support 5 of support is provided between the girder and abutment abutment body.
In embodiments of the present invention, there is spacing, the girder in the spacing between the floorings end and end of main beam
Upper surface forms the supporting plane to support the horizontal segment of docking plate body.
In embodiments of the present invention, the docking plate body is by horizontal ultra-high performance concrete connecting plate 6, vertical super
The integral L shape structure of 7 groups of high performance concrete abutment parados.
In embodiments of the present invention, horizontal segment end, the vertical section end of the docking plate body are extended with first outward
Reinforcing bar 8, floorings end, abutment abutment body upper surface are extended with the second reinforcing bar 9 mutually to weld with the first reinforcing bar outward.
In embodiments of the present invention, it is provided with adhesive-less layer 10 between the horizontal segment and supporting plane of the docking plate body,
Adhesive-less layer also is located at below the ultra-high performance concrete linkage section of docking plate body horizontal segment, and adhesive-less layer is generally rubber material
Material.
A kind of construction method of the expansion joint structure of connecting plate-abutment parados combination, sequentially includes the following steps: (1) by surpassing
High performance concrete connecting plate-abutment parados combination docking plate body is steam-cured using prefabricated and high-temperature pressurizing, when guaranteeing its maintenance
Between must not be lower than the completion to guarantee ultra-high performance concrete early-age shrinkage Yu creep in 15 days, dock plate body horizontal segment end,
The pre-buried stretching reinforcing bar in vertical section end, the extension elongation of reinforcing bar should meet welded connecting and require；(2) pre- using normal concrete
System or cast in situs girder, floorings and abutment abutment body, in floorings end along vertical bridge to stretching reinforcing bar, the table on abutment abutment body
Reinforcing bar is vertically stretched out in face；(3) support is arranged on abutment abutment body, girder is placed on support；(4) it is set in girder upper surface
Set adhesive-less layer；(5) ultra-high performance concrete connecting plate-abutment parados combination is sent by Traditional Transportation mode existing to construction
, horizontal segment is placed in above adhesive-less layer, guarantees two end faces of ultra-high performance concrete connecting plate-abutment parados combination
Stretching reinforcing bar is in along vertical bridge to the vertical stretching reinforcing bar for stretching out reinforcing bar and abutment abutment body upper surface with floorings end respectively can
The position of welded connecting, and welded；(6) cast in situs ultra-high performance concrete linkage section, ultra-high performance concrete is connected
Fishplate bar-abutment parados combination and the floorings and abutment abutment body of girder are combined together and become an overall structure.Pass through benefit
Guarantee connecting plate-abutment at girder-abutment node with the tension of ultra-high performance concrete linkage section, bending resistance and cracking resistance
Parados composite construction is at the girder end that the vertical loads such as the vertical bridge Xiang Zuoyong such as temperature change, concrete shrinkage and creep, automobile generate
Crack is not generated under portion's rotational deformation, the concentrated force of wheel and percussion；By the compactness of ultra-high performance concrete and low
Porosity characteristics avoid the moisture penetration from entering connecting plate-abutment parados composite construction；Prevent the moisture in banketing after platform from entering bridge
Platform parados concrete causes reinforcing bar is swollen to corrode bad, improves its Corrosion Protection, extends the construction service life.
In embodiments of the present invention, in step (5), before the reinforcement welding of abutment parados end and abutment abutment body, abutment
It needs to be arranged temporary support 11 between parados end and abutment abutment body and carries out temporary support.
The present invention is not limited to above-mentioned preferred forms, anyone can show that other are each under the inspiration of the present invention
The connecting plate of kind form-abutment parados combination expansion joint structure and its construction method.It is all according to scope of the present invention patent institute
The equivalent changes and modifications done, are all covered by the present invention.
Claims (8)
1. a kind of connecting plate-abutment parados combination expansion joint structure, including abutment abutment body, the upper support of the abutment abutment body
It is provided with girder, the upper surface of the girder is provided with floorings, it is characterised in that: the end of the girder is provided with positioned at bridge
Docking plate body above platform abutment body, through reinforcing bar, very-high performance between the horizontal segment end and floorings end of the docking plate body
Concrete linkage section is connected with each other, mixed through reinforcing bar, very-high performance between the vertical section end and abutment abutment body of the docking plate body
Solidifying soil linkage section is connected with each other.
2. connecting plate according to claim 1-abutment parados combination expansion joint structure, it is characterised in that: the girder
The support of support is provided between abutment abutment body.
3. connecting plate according to claim 1-abutment parados combination expansion joint structure, it is characterised in that: the bridge floor
There is spacing, the girder upper surface in the spacing forms the horizontal segment to support docking plate body between plate end and end of main beam
Supporting plane.
4. connecting plate according to claim 1-abutment parados combination expansion joint structure, it is characterised in that: the docking
Plate body is " L " that one is made of horizontal ultra-high performance concrete connecting plate, vertical ultra-high performance concrete abutment parados
Shape structure.
5. connecting plate according to claim 1-abutment parados combination expansion joint structure, it is characterised in that: the docking
Horizontal segment end, the vertical section end of plate body are extended with the first reinforcing bar outward, and floorings end, abutment abutment body upper surface are past
It is outer to extend useful the second reinforcing bar mutually to weld with the first reinforcing bar.
6. connecting plate according to claim 3-abutment parados combination expansion joint structure, it is characterised in that: the docking
Adhesive-less layer is provided between the horizontal segment and supporting plane of plate body, adhesive-less layer also is located at the superelevation of docking plate body horizontal segment
It can concrete linkage section lower section.
7. a kind of construction method of any connecting plate as described in claim 1-6-abutment parados combination expansion joint structure,
It sequentially includes the following steps: (1) and prefabricated and high temperature is used by the docking plate body that ultra-high performance concrete connecting plate-abutment parados combines
It pressurizes steam-cured, guarantees that its curing time must not be lower than the completion to guarantee ultra-high performance concrete early-age shrinkage Yu creep in 15 days,
The pre-buried stretching reinforcing bar in horizontal segment end, vertical section end of plate body is docked, the extension elongation of reinforcing bar should meet welded connecting and want
It asks；(2) using normal concrete is prefabricated or cast in situs girder, floorings and abutment abutment body, floorings end along vertical bridge to
Reinforcing bar is stretched out, vertically stretches out reinforcing bar in abutment abutment body upper surface；(3) support is arranged on abutment abutment body, girder is placed in
On support；(4) adhesive-less layer is set in girder upper surface；(5) by Traditional Transportation mode by ultra-high performance concrete connecting plate-
The combination of abutment parados is sent to construction site, and horizontal segment is placed in above adhesive-less layer, guarantees ultra-high performance concrete connecting plate-bridge
The stretching reinforcing bar of two end faces of platform parados combination respectively with floorings end along vertical bridge to stretching out table on reinforcing bar and abutment abutment body
The vertical stretching reinforcing bar in face is in the position of solderable connection, and is welded；(6) cast in situs ultra-high performance concrete connects
Ultra-high performance concrete connecting plate-abutment parados combination and the floorings and abutment abutment body of girder are combined together change by section
At an overall structure.
8. the construction method of connecting plate according to claim 7-abutment parados combination expansion joint structure, feature exist
In: in step (5), before the reinforcement welding of abutment parados end and abutment abutment body, between abutment parados end and abutment abutment body
It needs to be arranged temporary support and carries out temporary support.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910239403.4A CN109853376B (en) | 2019-03-27 | 2019-03-27 | Expansion joint structure of connecting plate-abutment back wall combination and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910239403.4A CN109853376B (en) | 2019-03-27 | 2019-03-27 | Expansion joint structure of connecting plate-abutment back wall combination and construction method thereof |
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| CN109853376A true CN109853376A (en) | 2019-06-07 |
| CN109853376B CN109853376B (en) | 2023-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093851A (en) * | 2019-06-20 | 2019-08-06 | 福州大学 | One kind being suitable for seamless bridge corbel back slab construction and its construction method |
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| CN203639813U (en) * | 2013-11-11 | 2014-06-11 | 上海应用技术学院 | Hidden type bridge expansion joint structure |
| CN204491388U (en) * | 2015-01-28 | 2015-07-22 | 福州大学 | A kind of outsourcing semi-integral bridge abutment bridge construction |
| CN107806008A (en) * | 2017-10-10 | 2018-03-16 | 山西省交通科学研究院 | A kind of integration hollow slab bridge girder construction and its construction method based on ultra-high performance concrete connection |
| CN108130856A (en) * | 2017-11-28 | 2018-06-08 | 同济大学 | Using the bridge superstructure seam of the individual layer steel bar arrangement of UHPC grouting materials |
| CN209873558U (en) * | 2019-03-27 | 2019-12-31 | 福州大学 | Expansion joint structure of connecting plate-abutment back wall combination |
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2019
- 2019-03-27 CN CN201910239403.4A patent/CN109853376B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203639813U (en) * | 2013-11-11 | 2014-06-11 | 上海应用技术学院 | Hidden type bridge expansion joint structure |
| CN204491388U (en) * | 2015-01-28 | 2015-07-22 | 福州大学 | A kind of outsourcing semi-integral bridge abutment bridge construction |
| CN107806008A (en) * | 2017-10-10 | 2018-03-16 | 山西省交通科学研究院 | A kind of integration hollow slab bridge girder construction and its construction method based on ultra-high performance concrete connection |
| CN108130856A (en) * | 2017-11-28 | 2018-06-08 | 同济大学 | Using the bridge superstructure seam of the individual layer steel bar arrangement of UHPC grouting materials |
| CN209873558U (en) * | 2019-03-27 | 2019-12-31 | 福州大学 | Expansion joint structure of connecting plate-abutment back wall combination |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110093851A (en) * | 2019-06-20 | 2019-08-06 | 福州大学 | One kind being suitable for seamless bridge corbel back slab construction and its construction method |
| CN110093851B (en) * | 2019-06-20 | 2024-02-06 | 福州大学 | Approach plate structure suitable for seamless bridge and construction method thereof |
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| CN109853376B (en) | 2023-12-08 |
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