CN108532445A - A kind of connecting structure and its construction method of prefabricated bent cap and Precast Pier Columns - Google Patents
A kind of connecting structure and its construction method of prefabricated bent cap and Precast Pier Columns Download PDFInfo
- Publication number
- CN108532445A CN108532445A CN201810725364.4A CN201810725364A CN108532445A CN 108532445 A CN108532445 A CN 108532445A CN 201810725364 A CN201810725364 A CN 201810725364A CN 108532445 A CN108532445 A CN 108532445A
- Authority
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- China
- Prior art keywords
- bent cap
- slot
- pier columns
- precast pier
- precast
- 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.)
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention discloses a kind of connecting structure of prefabricated bent cap and Precast Pier Columns, including prefabricated bent cap and Precast Pier Columns, slot is poured after being provided with pier stud at the top of Precast Pier Columns, it is provided in prefabricated bent cap and pours slot with being poured after pier stud after slot is coaxial and the bent cap that communicates, slot is poured after bent cap to penetrate through to the top surface of precast beam, is poured to pour after slot and bent cap after pier stud and has been poured concrete in slot；Several vertical prestressed thick reinforcements are provided in Precast Pier Columns, the bottom end of prestressed thick reinforcement is located in Precast Pier Columns, top passes through prefabricated bent cap, and the top of prestressed thick reinforcement carries out sealing off and covering anchorage using sealing off and covering anchorage block.The construction method of prefabricated bent cap and the connecting structure of Precast Pier Columns is first hoisting prefabricated pier stud, then hoisting prefabricated bent cap, and pours casting concrete in slot after pouring slot and pier stud after bent cap.The prefabricated bent cap of the present invention and connecting structure of Precast Pier Columns and its installation accuracy of construction method are high, efficient, connection reliability is high, it is short to occupy the hanging device time, small on urban landscape influence.
Description
Technical field
The present invention relates to the technical fields that builds a bridge, more particularly to a kind of connecting structure of prefabricated bent cap and Precast Pier Columns
And its construction method.
Background technology
Precast Pier Columns and prefabricated bent cap are structures common in packaged type bridges, in the prior art Precast Pier Columns and preform lid
Insertion slot type connection or the connection of wet seam are generally used between beam, but the construction of both connecting structure is required to take at the construction field (site)
Holder is built, and needs to use template, setting support and independent formwork erection are required to use hanging device for a long time at the scene, not only apply
It is long between working hour, construction procedure is complicated, installation accuracy is low, can also seriously affect urban landscape.
Invention content
The object of the present invention is to provide the connecting structure and its construction method of a kind of prefabricated bent cap and Precast Pier Columns, to solve
The above-mentioned problems of the prior art improves installation accuracy and construction efficiency between prefabricated bent cap and Precast Pier Columns, and avoids
Precast Pier Columns and the connection construction of prefabricated bent cap influence urban landscape.
To achieve the above object, the present invention provides following schemes：A kind of prefabricated bent cap of present invention offer and Precast Pier Columns
Connecting structure, including prefabricated bent cap and Precast Pier Columns pour slot after being provided with pier stud at the top of the Precast Pier Columns, described prefabricated
It is provided in bent cap and pours slot with being poured after the pier stud after slot is coaxial and the bent cap that communicates, slot is poured after the bent cap and is penetrated through to described pre-
The top surface of beam processed, pours after the pier stud to pour after slot and the bent cap and has poured concrete in slot；It is provided in the Precast Pier Columns
Several vertical prestressed thick reinforcements, the bottom end of the prestressed thick reinforcement is located in the Precast Pier Columns, top passes through institute
Prefabricated bent cap is stated, and the top of the prestressed thick reinforcement carries out sealing off and covering anchorage using sealing off and covering anchorage block.
Preferably, poured after the bent cap pour after slot and the bridge pier be both provided in slot several vertical connection reinforcing bars with
And connect stirrup that reinforcing bar is linked, horizontal with described.
Preferably, the prestressed thick reinforcement is uniformly arranged along the circumferential direction of the Precast Pier Columns.
Preferably, the prestressed thick reinforcement is four.
Preferably, the Precast Pier Columns are cylinder pier or rectangle pier.
Preferably, the cross sectional shape that slot is poured after the pier stud is identical as the cross sectional shape of the Precast Pier Columns.
Preferably, the rectangular cross-section of slot is poured after the bent cap.
Preferably, the prestressed thick reinforcement is located at different from the Precast Pier Columns for pouring slot after the bridge pier.
The present invention also provides the construction methods of a kind of prefabricated bent cap and the connecting structure of Precast Pier Columns, include the following steps：
(1) construction bridges pile foundation and cushion cap；
(2) above-mentioned prefabricated bent cap and Precast Pier Columns are manufactured in factory：It is reserved in prefabricated bent cap and pours slot and pre- after bent cap
Prestressed thick reinforcement pipeline is buried, bent cap stress main reinforcement and bent cap stirrup are arranged in prefabricated bent cap；It is pre- at the top of prefabricated pier top
Slot and pre-buried connection reinforcing bar, stirrup, prestressed thick reinforcement fixing end, prestressed thick reinforcement and prestressing force crude steel are poured after reserving pier stud
Muscle pipeline；
(3) by prefabricated bent cap and Precast Pier Columns transportation warrant construction site, and Precast Pier Columns are lifted, makes Precast Pier Columns and holds
Platform connects；
(4) high-strength mortar is smeared on the pier top annular surface of Precast Pier Columns；
(5) hoisting prefabricated bent cap：The prestressed thick reinforcement pipeline on prefabricated bent cap is set to be directed at the prestressing force in Precast Pier Columns
Prestressed thick reinforcement stretching end, stretch-draw prestressing force bar reinforcement sealing off and covering anchorage is arranged in bar reinforcement at the top of bent cap；
(6) slot is poured after pouring slot and bent cap after pouring pier stud with ungauged regions pea gravel concreten, and is conserved.
The prefabricated bent cap of the present invention and the connecting structure and its construction method of Precast Pier Columns achieve compared with the existing technology with
Lower technique effect：
The principle of the connecting structure and its construction method of the prefabricated bent cap of the present invention and Precast Pier Columns is simple, connection reliability
Height is not necessarily to independent setting support and formwork erection, and the occupancy hanging device time is short, and installation accuracy is high, efficient, especially suitable for scape
See more demanding city packaged type bridges.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the prefabricated bent cap of the present invention and the connecting structure of Precast Pier Columns；
Fig. 2 is the structural schematic diagram of prefabricated bent cap in the prefabricated bent cap of the present invention and the connecting structure of Precast Pier Columns；
Fig. 3 is the structural schematic diagram of Precast Pier Columns in the prefabricated bent cap of the present invention and the connecting structure of Precast Pier Columns；
Wherein, 1- prefabricated bent caps pour slot, 3- bent cap stress main reinforcements, 4- bent cap stirrups, 5- Precast Pier Columns, 6- after 2- bent caps
Slot, 7- high-strength mortars, 8- prestressed thick reinforcements, 9- prestressed thick reinforcement fixing ends, 10- prestressed thick reinforcement tensioning are poured after pier stud
End, 11- connection reinforcing bars, 12- stirrups, 13- sealing off and covering anchorage blocks.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide the connecting structure and its construction method of a kind of prefabricated bent cap and Precast Pier Columns, to solve
Problem of the existing technology improves installation accuracy and construction efficiency between prefabricated bent cap and Precast Pier Columns, and avoids prefabricated
The connection construction of pier stud and prefabricated bent cap influences urban landscape.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
As shown in Figs. 1-3, the prefabricated bent cap of the present embodiment and the connecting structure of Precast Pier Columns include prefabricated bent cap 1 and prefabricated pier
Column 5, there are four vertical prestressed thick reinforcements 8 for setting in Precast Pier Columns 5, and four prestressed thick reinforcements 8 are after different from pier stud
The ring portion for pouring the Precast Pier Columns 5 of slot 6 is circumferentially uniformly distributed, and the wall thickness of the annulated column at 5 top of Precast Pier Columns is 25cm~30cm；It answers in advance
The bottom end of power bar reinforcement 8 is located in Precast Pier Columns 5, top passes through prefabricated bent cap 1, and prestressed thick reinforcement 8 is corresponded in Precast Pier Columns 5
Bottom end be provided with fixing end 9, to fix prestressed thick reinforcement 8, prefabricated bent cap 1 is located at the top of Precast Pier Columns 5, prefabricated bent cap
The top that 1 top corresponds to prestressed thick reinforcement 8 is provided with prestressed thick reinforcement stretching end 10, and the top of prestressed thick reinforcement 8
End carries out sealing off and covering anchorage using sealing off and covering anchorage block 13.
The bent cap stirrup 4 for being provided with bent cap stress main reinforcement 3 on prefabricated bent cap 1 and being coupled with bent cap stress main reinforcement 3, bent cap by
Advocate muscle 3 and bent cap stirrup 4 is poured after and do not blocked at the range of slot, the horizontal layout of bent cap stress main reinforcement 3 and bent cap stirrup 4 is answered
Avoid connection reinforcing bar 11 and prestressed thick reinforcement 8.Slot 6 is poured in the top of Precast Pier Columns 5 after being provided with pier stud, is set in prefabricated bent cap 1
It is equipped with and pours slot 2 with being poured after pier stud after slot 6 is coaxial and the bent cap that communicates, the perforation of slot 2 is poured after bent cap to the top surface of precast beam, after pier stud
It pours to pour after slot 6 and bent cap and has poured concrete in slot 2, the sectional dimension that slot 6 is poured after pier stud should be less than the section ruler of Precast Pier Columns 5
It is very little；Poured after bent cap pour after slot 2 and bridge pier be both provided in slot several vertical connection reinforcing bars 11 and with connect 11 phase of reinforcing bar
The extension elongation of stirrup 12 be coupled, horizontal, connection reinforcing bar 11 should meet anchorage length requirement, and stirrup 12 should be in connection reinforcing bar
Arrangement in 11 length range.
It should be noted that the cross sectional shape that slot 6 is poured after pier stud is identical as the cross sectional shape of Precast Pier Columns 5, Precast Pier Columns 5
For cylinder pier or rectangle pier, Precast Pier Columns 5 are cylinder pier in the present embodiment, and the cross sectional shape that slot 6 is poured after pier stud is circle, lid
The rectangular cross-section of slot 2 is poured after beam.
The present embodiment also provides the construction method of a kind of prefabricated bent cap and the connecting structure of Precast Pier Columns, including following step
Suddenly：
(1) construction bridges pile foundation and cushion cap；
(2) above-mentioned prefabricated bent cap 1 and Precast Pier Columns 5 are manufactured in factory：Slot 2 is poured after reserving bent cap in prefabricated bent cap 1
And pre-buried 8 pipeline of prestressed thick reinforcement, bent cap stress main reinforcement 3 and bent cap stirrup 4 are arranged in prefabricated bent cap 1；In prefabricated pier top
Top reserve pier stud after pour slot 6 and pre-buried connection reinforcing bar 11, stirrup 12, prestressed thick reinforcement fixing end 9, prestressing force crude steel
8 pipeline of muscle 8 and prestressed thick reinforcement；
(3) by 5 transportation warrant construction site of prefabricated bent cap 1 and Precast Pier Columns, and Precast Pier Columns 5 are lifted, makes Precast Pier Columns 5
It is connect with cushion cap, is necessary to ensure that the verticality of Precast Pier Columns 5 meets construction requirement in the construction process；
(4) high-strength mortar 7 is smeared on the pier top annular surface of Precast Pier Columns 5；
(5) hoisting prefabricated bent cap 1：8 pipeline of prestressed thick reinforcement on prefabricated bent cap 1 is set to be aligned pre- in Precast Pier Columns 5
Prestressed thick reinforcement stretching end 10,8 sealing off and covering anchorage of stretch-draw prestressing force bar reinforcement is arranged in stress bar reinforcement 8 at the top of bent cap；
(6) slot 2 is poured after pouring slot 6 and bent cap after pouring pier stud with ungauged regions pea gravel concreten, and is conserved, maintenance is completed
Being reliably connected for prefabricated bent cap 1 and Precast Pier Columns 5 is formed afterwards.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "top", "bottom", "vertical", "horizontal"
Or position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, and
It is not that the device of instruction or hint meaning or element must have a particular orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.
Specific case is applied in the present invention, and principle and implementation of the present invention are described, above example
Illustrate the method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (9)
1. a kind of connecting structure of prefabricated bent cap and Precast Pier Columns, it is characterised in that：It is described including prefabricated bent cap and Precast Pier Columns
Slot is poured after being provided with pier stud at the top of Precast Pier Columns, is provided in the prefabricated bent cap and to pour slot after the pier stud coaxial and communicate
Bent cap after pour slot, slot is poured after the bent cap and is penetrated through to the top surface of the precast beam, after pouring slot and the bent cap after the pier stud
It pours and has poured concrete in slot；Several vertical prestressed thick reinforcements are provided in the Precast Pier Columns, the prestressing force is thick
The bottom end of reinforcing bar is located in the Precast Pier Columns, top passes through the prefabricated bent cap, and the top of the prestressed thick reinforcement is adopted
Sealing off and covering anchorage is carried out with sealing off and covering anchorage block.
2. the connecting structure of prefabricated bent cap and Precast Pier Columns according to claim 1, it is characterised in that：It is poured after the bent cap
It is poured after slot and the bridge pier and is both provided with several vertical connection reinforcing bars in slot and connects reinforcing bar is linked, water with described
Flat stirrup.
3. the connecting structure of prefabricated bent cap and Precast Pier Columns according to claim 1, it is characterised in that：The prestressing force is thick
Reinforcing bar is uniformly arranged along the circumferential direction of the Precast Pier Columns.
4. the connecting structure of prefabricated bent cap and Precast Pier Columns according to claim 3, it is characterised in that：The prestressing force is thick
Reinforcing bar is four.
5. the connecting structure of prefabricated bent cap and Precast Pier Columns according to claim 1, it is characterised in that：The Precast Pier Columns
For cylinder pier or rectangle pier.
6. the connecting structure of prefabricated bent cap and Precast Pier Columns according to claim 5, it is characterised in that：It is poured after the pier stud
The cross sectional shape of slot is identical as the cross sectional shape of the Precast Pier Columns.
7. the connecting structure of prefabricated bent cap and Precast Pier Columns according to claim 1, it is characterised in that：It is poured after the bent cap
The rectangular cross-section of slot.
8. the connecting structure of prefabricated bent cap and Precast Pier Columns according to claim 1, it is characterised in that：The prestressing force is thick
Reinforcing bar is located at different from the Precast Pier Columns for pouring slot after the bridge pier.
9. the construction method of a kind of prefabricated bent cap and the connecting structure of Precast Pier Columns, which is characterized in that include the following steps：
(1) construction bridges pile foundation and cushion cap；
(2) the prefabricated bent cap and Precast Pier Columns described in factory's manufacturing claims 1-9 any one：It is reserved in prefabricated bent cap
Slot and pre-buried prestressed thick reinforcement pipeline are poured after going out bent cap, bent cap stress main reinforcement and bent cap stirrup are arranged in prefabricated bent cap；
Slot is poured after reserving pier stud at the top of prefabricated pier top and pre-buried connection reinforcing bar, stirrup, prestressed thick reinforcement fixing end, prestressing force are thick
Reinforcing bar and prestressed thick reinforcement pipeline；
(3) by prefabricated bent cap and Precast Pier Columns transportation warrant construction site, and Precast Pier Columns are lifted, Precast Pier Columns is made to connect with cushion cap
It connects；
(4) high-strength mortar is smeared on the pier top annular surface of Precast Pier Columns；
(5) hoisting prefabricated bent cap：The prestressed thick reinforcement pipeline on prefabricated bent cap is set to be directed at the prestressing force crude steel in Precast Pier Columns
Prestressed thick reinforcement stretching end, stretch-draw prestressing force bar reinforcement sealing off and covering anchorage is arranged in muscle at the top of bent cap；
(6) slot is poured after pouring slot and bent cap after pouring pier stud with ungauged regions pea gravel concreten, and is conserved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725364.4A CN108532445A (en) | 2018-07-04 | 2018-07-04 | A kind of connecting structure and its construction method of prefabricated bent cap and Precast Pier Columns |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725364.4A CN108532445A (en) | 2018-07-04 | 2018-07-04 | A kind of connecting structure and its construction method of prefabricated bent cap and Precast Pier Columns |
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| CN108532445A true CN108532445A (en) | 2018-09-14 |
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| CN201810725364.4A Pending CN108532445A (en) | 2018-07-04 | 2018-07-04 | A kind of connecting structure and its construction method of prefabricated bent cap and Precast Pier Columns |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868753A (en) * | 2019-04-18 | 2019-06-11 | 上海市城市建设设计研究总院（集团）有限公司 | Precast assembly pier consolidation structure and its construction method |
| CN110258302A (en) * | 2019-07-31 | 2019-09-20 | 福州大学 | Half prefabricated U HPC shell of one kind overlapping bent cap and Precast Pier Columns connecting structure and its construction method |
| CN110939053A (en) * | 2019-12-12 | 2020-03-31 | 中铁二院工程集团有限责任公司 | Prefabricated pier stud and prefabricated bent cap prestressing method quick connection structure |
| CN113123214A (en) * | 2020-01-10 | 2021-07-16 | 中国国家铁路集团有限公司 | Large-beam and high-upright-column prefabricated assembled frame pier and construction method |
| CN113202017A (en) * | 2020-03-17 | 2021-08-03 | 中国铁路设计集团有限公司 | Connecting structure between prefabricated assembled pier stud and top cap and construction method |
| CN114622482A (en) * | 2022-04-11 | 2022-06-14 | 北京工业大学 | Layered corrugated pipe connection prefabricated assembly bent cap structure, construction method and design method |
| WO2024036684A1 (en) * | 2022-08-17 | 2024-02-22 | 中交公路长大桥建设国家工程研究中心有限公司 | Fabricated bent cap and pier column combined structure and construction method therefor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868753A (en) * | 2019-04-18 | 2019-06-11 | 上海市城市建设设计研究总院（集团）有限公司 | Precast assembly pier consolidation structure and its construction method |
| CN109868753B (en) * | 2019-04-18 | 2024-03-12 | 上海市城市建设设计研究总院（集团）有限公司 | Prefabricated assembled pier beam consolidation structure and construction method thereof |
| CN110258302A (en) * | 2019-07-31 | 2019-09-20 | 福州大学 | Half prefabricated U HPC shell of one kind overlapping bent cap and Precast Pier Columns connecting structure and its construction method |
| CN110258302B (en) * | 2019-07-31 | 2024-02-09 | 福州大学 | Semi-prefabricated UHPC shell superposed capping beam and prefabricated pier stud connection structure and construction method thereof |
| CN110939053A (en) * | 2019-12-12 | 2020-03-31 | 中铁二院工程集团有限责任公司 | Prefabricated pier stud and prefabricated bent cap prestressing method quick connection structure |
| CN113123214A (en) * | 2020-01-10 | 2021-07-16 | 中国国家铁路集团有限公司 | Large-beam and high-upright-column prefabricated assembled frame pier and construction method |
| CN113202017A (en) * | 2020-03-17 | 2021-08-03 | 中国铁路设计集团有限公司 | Connecting structure between prefabricated assembled pier stud and top cap and construction method |
| CN114622482A (en) * | 2022-04-11 | 2022-06-14 | 北京工业大学 | Layered corrugated pipe connection prefabricated assembly bent cap structure, construction method and design method |
| CN114622482B (en) * | 2022-04-11 | 2024-05-10 | 北京工业大学 | Layered corrugated pipe connection prefabricated assembly bent cap structure, construction method and design method |
| WO2024036684A1 (en) * | 2022-08-17 | 2024-02-22 | 中交公路长大桥建设国家工程研究中心有限公司 | Fabricated bent cap and pier column combined structure and construction method therefor |
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