CN110273359A - A kind of prefabricated bent cap and construction method of packaged type bridges - Google Patents
A kind of prefabricated bent cap and construction method of packaged type bridges Download PDFInfo
- Publication number
- CN110273359A CN110273359A CN201910488278.0A CN201910488278A CN110273359A CN 110273359 A CN110273359 A CN 110273359A CN 201910488278 A CN201910488278 A CN 201910488278A CN 110273359 A CN110273359 A CN 110273359A
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- China
- Prior art keywords
- column
- bent cap
- embedded
- template
- embedded groove
- 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.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 22
- 239000011440 grout Substances 0.000 claims abstract description 16
- 230000002787 reinforcement Effects 0.000 claims abstract description 13
- 239000004567 concrete Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 6
- 210000002421 cell wall Anatomy 0.000 claims abstract description 4
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000004574 high-performance concrete Substances 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
- 238000012545 processing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses the prefabricated bent caps and construction method of a kind of packaged type bridges, main body is that steel reinforcement cage casting concrete forms, for being arranged in bridge column, column embedded groove is offered on the interface of the prefabricated bent cap and bridge column, convex shaped block is provided in the column embedded groove, perforation is provided on the cell wall of the column embedded groove to perforation extraneous and for slurry stream, the upper end of the bridge column is provided with the embedded division mutually chimeric with column embedded groove, reinforcing bar is embedded on the embedded division, grout sleeve corresponding with reinforcing bar is embedded in the column embedded groove, the present invention uses the form of construction work of grout sleeve and steel reinforcement abutting joints, embedded groove and lug boss in hoisting process to limiting, reduce original difficulty of construction, improve the precision of lifting splicing.
Description
Technical field
The present invention relates to bridge construction field, the prefabricated bent cap and construction method of especially a kind of packaged type bridges.
Background technique
The load that bent cap refers to as bearing, distribution and transmitting superstructure, Coping Construction belongs to high altitude operation, cast-in-place big
Concrete is measured, construction risk is big.It can accelerate speed of application by the way of precast assembly bent cap, guarantee quality, consider simultaneously
There is good economy to scale effect.
In the work progress of prefabricated bent cap at this stage, grout sleeve is embedded in prefabricated bent cap, after connecting column reinforcing bar
Grouting joint close is carried out, connection type is solid and reliable, and stability is strong, and the later period safeguards bent cap less.But this connection type needs
Multiple grout sleeves and Duo Gen reinforcing bar are set, when construction, builder must accurate control, could will be so reinforcing bar insertion corresponds to
Grout sleeve in, then hole-specifically encapsulating again, difficulty of construction is larger, influences project progress.
Summary of the invention
To solve problems of the prior art, the present invention provides a kind of prefabricated bent cap of packaged type bridges and constructions
Method.
The technical solution adopted by the present invention is that:
A kind of prefabricated bent cap of packaged type bridges, main body is that steel reinforcement cage casting concrete forms, vertical in bridge for being arranged
On column, column embedded groove is offered on the interface of the prefabricated bent cap and bridge column, is provided in the column embedded groove
Convex shaped block is provided with perforation on the cell wall of the column embedded groove to perforation extraneous and for slurry stream, the bridge
The upper end of column has the embedded division mutually chimeric with column embedded groove, and reinforcing bar, the column insertion are embedded on the embedded division
Grout sleeve corresponding with reinforcing bar is embedded in slot.
Preferably, there are the spaces for slurry stream at the chimeric surface of the embedded division and column embedded groove.
Preferably, the cross section of the convex shaped block is inverted trapezoidal.
The construction method of the prefabricated bent cap of packaged type bridges, comprising the following steps:
S1, fabrication of reinforcing cage, will be processed after reinforcing bar bind into steel reinforcement cage, and covered in the pre-buried grouting in steel reinforcement cage bottom
Cylinder；
S2, the template assemblies of prefabricated bent cap, using the mould of the assembled prefabricated bent cap of end template, side template, Side Template and bracket
Plate, being made on end template has structure corresponding with the embedded division, and answers masterpiece finite element analysis computation to template；
S3, casting concrete and maintenance in template, will the qualified concrete of proportion using it is vertical pour smash by the way of pour
It builds, and carries out auxiliary using vibrating spear and vibrate, after the completion of pouring, plastic film health-preserving method is taken to be conserved, bent cap
Internal-external temperature difference is controlled at 15 DEG C, and template is dismantled after the completion of maintenance；
The interface of bent cap and bridge, the embedded division of column embedded groove and column are cleared up and moistened to S4, hoisting prefabricated bent cap
Alignment, grout sleeve are directed at the reinforcing bar on embedded division, by slip casting of perforating, complete lifting.
Preferably, the template profile is Q235, protects weldering welding using dioxo gas, is connected between template by flange
It connects.
Preferably, the grade of the proportion concrete is C50.
The beneficial effects of the present invention are: retaining the form of construction work of part original grout sleeve and steel reinforcement abutting joints, increase embedding
Enter slot and lug boss to limiting in hoisting process, reduce original difficulty of construction, improves the precision of lifting splicing,
There are the spaces for slurry stream after the completion of lifting, between prefabricated bent cap and bridge column, the plumpness after ensure that grouting.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is construction schematic diagram of the invention；
Appended drawing reference:
1, prefabricated bent cap；10, column embedded groove；11, convex shaped block；12, perforation；13, grout sleeve 2, bridge column；
20, embedded division；21, reinforcing bar.
Specific embodiment
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
As shown in Figure 1, a kind of prefabricated bent cap 1 of packaged type bridges of the invention, main body be steel reinforcement cage casting concrete and
At setting offers column embedded groove 10, institute on the prefabricated bent cap 1 and the interface of bridge column 2 on bridge column 2
It states and is provided with convex shaped block 11 in column embedded groove 10, the cross section of the convex shaped block 11 is inverted trapezoidal, the column insertion
Perforation is provided on the cell wall of slot 10 to perforation 12 extraneous and for slurry stream, the upper end of the bridge column 2 is provided with
There are for slurry at the chimeric surface of the embedded division 20 mutually chimeric with column embedded groove 10, the embedded division 20 and column embedded groove 10
The space of circulation is embedded with reinforcing bar 21 on the embedded division 20, is embedded in the column embedded groove 10 corresponding with reinforcing bar 21
Grout sleeve 13.During lifting splicing, convex shaped block 11 is first docked with bridge column 2, and 11 face domain of convex shaped block is big, convenient
Positioning, can reduce docking difficulty.13 ability of post-grouting sleeve is successfully docked to the two to dock with reinforcing bar 21, guarantees the accurate of its docking
Degree.
As shown in Fig. 2, the construction method of the prefabricated bent cap of packaged type bridges of the invention, comprising the following steps:
I, screwing steel bars 21 in reinforcement shed, including top main reinforcement, bottom main reinforcement and side stirrup, will be processed after reinforcing bar
21 are placed on dedicated moulding bed and carry out binding molding, and in the pre-buried grout sleeve 13 in 21 cage bottom portion of reinforcing bar, grout sleeve 13 is adopted
With full grout sleeve, material is high-strength spheroidal graphite cast-iron；
II, template is assembled by end template, side template, Side Template and bracket, is provided on end template and the insertion
The corresponding structure in portion 20, template profile are Q235, protect weldering welding using dioxo gas, pass through flanged joint, mould between template
Plate piece height difference, width are less than 2mm, make release agent using refined oil, answer masterpiece to have template after the completion of template assembly, before pouring
Finite element analysis calculates, and can pour after analysis acquired results are qualified；
III, selection intensity is not less than the material mixture ratios such as 42.5 portland cements and flyash, ground slag into its grade and is
The high performance concrete of C50, will the qualified concrete of proportion using it is vertical pour smash by the way of pour, and use vibrating spear into
Row auxiliary is vibrated, and during pouring, the moment checks form stable situation, and timely processing of finding the problem avoids the occurrence of safety and quality
The problem of；After the completion of pouring, plastic film health-preserving method is taken to be conserved, the internal-external temperature difference of bent cap is controlled at 15 DEG C, when
When temperature is lower than 5 DEG C, reinforce covering and heat insulating, no longer watering health dismantles template after the completion of maintenance；
IV, it clears up and the interface of wet bent cap and bridge, the embedded division 20 of 10 alignment post of column embedded groove, grouting covers
Cylinder 13 is directed at the reinforcing bar 21 on embedded division 20, by 12 slip castings of perforating, completes lifting.
A specific embodiment of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (6)
1. a kind of prefabricated bent cap of packaged type bridges, main body is that steel reinforcement cage casting concrete forms, for being arranged in bridge column
On, it is characterised in that: column embedded groove, the column embedded groove are offered on the interface of the prefabricated bent cap and bridge column
It is inside provided with convex shaped block, perforation of the perforation to the external world and for slurry stream is provided on the cell wall of the column embedded groove,
The upper end of the bridge column has the embedded division mutually chimeric with column embedded groove, is embedded with reinforcing bar on the embedded division, described
Grout sleeve corresponding with reinforcing bar is embedded in column embedded groove.
2. the prefabricated bent cap of packaged type bridges according to claim 1, it is characterised in that: the embedded division of the bridge column
With there are the spaces for slurry stream at the chimeric surface of the column embedded groove.
3. the prefabricated bent cap of packaged type bridges according to claim 1, it is characterised in that: the cross section of the convex shaped block
For inverted trapezoidal.
4. a kind of prefabricated construction method of bent cap using the packaged type bridges as described in claim 1-3 is any, comprising the following steps:
S1, fabrication of reinforcing cage: the reinforcing bar after will be processed is bound into steel reinforcement cage, and in the pre-buried grout sleeve in steel reinforcement cage bottom；
The template assemblies of S2, prefabricated bent cap: using the template of the assembled prefabricated bent cap of end template, side template, Side Template and bracket, bottom
Being made in template has structure corresponding with the embedded division, and answers masterpiece finite element analysis computation to template；
Casting concrete and maintenance in S3, template: will the qualified concrete of proportion using it is vertical pour smash by the way of pour, and
Auxiliary is carried out using vibrating spear to vibrate, and after the completion of pouring, plastic film health-preserving method is taken to be conserved, the inside and outside temperature of bent cap
Difference control dismantles template at 15 DEG C after the completion of maintenance；
S4, hoisting prefabricated bent cap: clearing up and the interface of wet bent cap and bridge, the embedded division pair of column embedded groove and column
Standard, grout sleeve are directed at the reinforcing bar on embedded division, by slip casting of perforating, complete lifting.
5. a kind of construction method of the prefabricated bent cap of packaged type bridges according to claim 4, it is characterised in that: the mould
Profile material is Q235, protects weldering welding using dioxo gas, passes through flanged joint between template.
6. a kind of construction method of the prefabricated bent cap of packaged type bridges according to claim 4, it is characterised in that: described to match
Grade than concrete is C50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910488278.0A CN110273359A (en) | 2019-06-05 | 2019-06-05 | A kind of prefabricated bent cap and construction method of packaged type bridges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910488278.0A CN110273359A (en) | 2019-06-05 | 2019-06-05 | A kind of prefabricated bent cap and construction method of packaged type bridges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110273359A true CN110273359A (en) | 2019-09-24 |
Family
ID=67962008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910488278.0A Pending CN110273359A (en) | 2019-06-05 | 2019-06-05 | A kind of prefabricated bent cap and construction method of packaged type bridges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110273359A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593119A (en) * | 2019-09-29 | 2019-12-20 | 同济大学 | Device and method for assembling and positioning upper and lower components of prefabricated bridge |
| CN113062224A (en) * | 2021-03-26 | 2021-07-02 | 襄阳路桥建设集团有限公司 | Prefabricated bridge bent cap positioning device and using method thereof |
| CN113235447A (en) * | 2021-05-31 | 2021-08-10 | 湖南对外建设集团有限公司 | Prefabricated bent cap installation equipment and construction method thereof |
| CN113373815A (en) * | 2021-06-22 | 2021-09-10 | 中铁十九局集团第一工程有限公司 | Construction method for on-site wet joint of prefabricated bent cap |
| CN113771186A (en) * | 2021-09-03 | 2021-12-10 | 北京好运达智创科技有限公司 | Capping beam and manufacturing method thereof |
| CN114808654A (en) * | 2022-05-18 | 2022-07-29 | 中交一公局集团有限公司 | Fully-prefabricated assembled bridge and construction method thereof |
| CN114808662A (en) * | 2022-03-21 | 2022-07-29 | 上海市城市建设设计研究总院（集团）有限公司 | Nested standardized prefabricated assembled bent cap and construction method thereof |
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| US20110225746A1 (en) * | 2010-03-19 | 2011-09-22 | Gilles Desrochers | Prefabricated steel bridge or viaduct structure |
| CN104018422A (en) * | 2014-06-18 | 2014-09-03 | 上海市城市建设设计研究总院 | Wet joint structure for prefabrication and splicing of joint part between bridge pier column and cover beam |
| CN107859248A (en) * | 2017-11-02 | 2018-03-30 | 湖南大学 | A kind of prefabricated concrete structure jointing and connection method |
| CN207608807U (en) * | 2017-11-29 | 2018-07-13 | 深圳市交运工程集团有限公司 | Packaged type bridges |
| CN108547217A (en) * | 2018-06-12 | 2018-09-18 | 北京市市政工程设计研究总院有限公司 | Unit construction bridge formed precast concrete pier stud and bent cap bell and spigot frame and construction method |
-
2019
- 2019-06-05 CN CN201910488278.0A patent/CN110273359A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110225746A1 (en) * | 2010-03-19 | 2011-09-22 | Gilles Desrochers | Prefabricated steel bridge or viaduct structure |
| CN104018422A (en) * | 2014-06-18 | 2014-09-03 | 上海市城市建设设计研究总院 | Wet joint structure for prefabrication and splicing of joint part between bridge pier column and cover beam |
| CN107859248A (en) * | 2017-11-02 | 2018-03-30 | 湖南大学 | A kind of prefabricated concrete structure jointing and connection method |
| CN207608807U (en) * | 2017-11-29 | 2018-07-13 | 深圳市交运工程集团有限公司 | Packaged type bridges |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593119A (en) * | 2019-09-29 | 2019-12-20 | 同济大学 | Device and method for assembling and positioning upper and lower components of prefabricated bridge |
| CN113062224A (en) * | 2021-03-26 | 2021-07-02 | 襄阳路桥建设集团有限公司 | Prefabricated bridge bent cap positioning device and using method thereof |
| CN113235447A (en) * | 2021-05-31 | 2021-08-10 | 湖南对外建设集团有限公司 | Prefabricated bent cap installation equipment and construction method thereof |
| CN113235447B (en) * | 2021-05-31 | 2023-08-18 | 湖南对外建设集团有限公司 | Prefabricated bent cap mounting equipment and construction method thereof |
| CN113373815A (en) * | 2021-06-22 | 2021-09-10 | 中铁十九局集团第一工程有限公司 | Construction method for on-site wet joint of prefabricated bent cap |
| CN113771186A (en) * | 2021-09-03 | 2021-12-10 | 北京好运达智创科技有限公司 | Capping beam and manufacturing method thereof |
| CN114808662A (en) * | 2022-03-21 | 2022-07-29 | 上海市城市建设设计研究总院（集团）有限公司 | Nested standardized prefabricated assembled bent cap and construction method thereof |
| CN114808662B (en) * | 2022-03-21 | 2023-10-03 | 上海市城市建设设计研究总院（集团）有限公司 | Nested standardized prefabricated assembled bent cap and construction method thereof |
| CN114808654A (en) * | 2022-05-18 | 2022-07-29 | 中交一公局集团有限公司 | Fully-prefabricated assembled bridge and construction method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190924 |
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