CN108797364A - A kind of precast concrete arch bridge in-situ layer construction method - Google Patents
A kind of precast concrete arch bridge in-situ layer construction method Download PDFInfo
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- CN108797364A CN108797364A CN201810815105.0A CN201810815105A CN108797364A CN 108797364 A CN108797364 A CN 108797364A CN 201810815105 A CN201810815105 A CN 201810815105A CN 108797364 A CN108797364 A CN 108797364A
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- layer
- top plate
- vault
- reinforcing bar
- situ layer
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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
- 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 invention discloses a kind of precast concrete arch bridge in-situ layer construction methods, belong to technical field of bridge construction.Step of the present invention is：Step 1：Arch component and prefabrication cast-in-place layer is integral prefabricated is made；Step 2：Distinguish pre-buried lateral connection reinforcing bar and top plate longitudinal reinforcement in the side of prefabrication cast-in-place layer；Step 3：Encircle component pre-buried top plate connection reinforcing bar and web reinforcement when prefabricated；Step 4：The dabbing processing of prefabrication cast-in-place layer side；Step 5：It is respectively arranged top plate transverse steel and top plate longitudinal reinforcement at the reserved location of vault in-situ layer, is welded and fixed top plate transverse steel and lateral connection reinforcing bar in installation process；Step 6：After the completion of welding, the concreting work of vault in-situ layer is carried out.The present invention reduces by Prefabricated arch component and prefabrication cast-in-place layer and faces side progress template installation and fixed step when vault in-situ layer pours, reduce construction cost, this method is simple in structure, easy to use, can greatly improve construction quality and project progress.
Description
Technical field
The present invention relates to technical field of bridge construction, are applied more specifically to a kind of precast concrete arch bridge in-situ layer
Work method.
Background technology
Traditional large scale prefabricated arcuately or in beam and slab type bridge, after the completion of arch rib or beam slab lift, to ensure arch ring
Or monolithic stability and the structure safety of beam slab, it is also necessary to which cast-in-place one layer of 15cm or so armored concrete will encircle or contignation connection
Integral, traditional method is that idea sets up installation form and support system on the outside of side case or side bar, and faces side and face idle job and take
If template and support because no impetus not only take a lot of work material, increase construction cost, but also there are larger security risks.
Invention content
1. technical problems to be solved by the inivention
In view of the defects existing in the prior art with deficiency, the present invention provides a kind of constructions of precast concrete arch bridge in-situ layer
Method, the inventive structure is simple, reasonable, easy to use, reliable, and can greatly improve construction in-situ layer construction quality and work
Cheng Jindu is easy to make, easy for installation, with strong points, easy to operate, improves construction efficiency, ensure that construction quality, is reduced
Engineering cost, with good economic efficiency and social benefit.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
A kind of precast concrete arch bridge in-situ layer construction method of the present invention, including arch component, prefabrication cast-in-place layer and vault
In-situ layer, step are：
Step 1：Arch component and prefabrication cast-in-place layer is integral prefabricated is made；
Step 2：Distinguish pre-buried lateral connection reinforcing bar and top plate longitudinal reinforcement in the side of prefabrication cast-in-place layer；
Step 3：Encircleing component, by design drawing requirement, pre-buried top plate connects reinforcing bar and web reinforcement respectively when prefabricated；
Step 4：Prefabrication cast-in-place layer side carries out dabbing processing, and the front end area of prefabrication cast-in-place layer is existing for pouring vault
Pour layer；
Step 5：Arrange that top plate transverse steel and top plate are longitudinal at the reserved location of vault in-situ layer by drawing respectively
Top plate transverse steel and lateral connection reinforcing bar are welded and fixed by reinforcing bar during the installation process；
Step 6：After the completion of welding, the concreting work of vault in-situ layer is carried out.
Further, side equidistant interval setting of the lateral connection reinforcing bar in vault in-situ layer.
3. advantageous effect
Using technical solution provided by the invention, compared with prior art, have the advantages that：
The present invention has the function that template and supporting, reduces by that will encircle component and prefabrication cast-in-place layer is integral prefabricated is made
When later stage vault in-situ layer pours, faces side and carries out template installation and fixed process, reduce construction cost, accelerate construction progress,
This method is simple and reasonable for structure, easy to use, reliable, and can greatly improve construction in-situ layer construction quality and engineering into
Degree.
Description of the drawings
Fig. 1 is the overall structure figure of the present invention.
In figure：1, encircle component；2, prefabrication cast-in-place layer；3, lateral connection reinforcing bar；4, web reinforcement；5, top plate transverse steel；
6, vault in-situ layer；7, top plate longitudinal reinforcement；8, top plate connects reinforcing bar.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples：
Embodiment 1
It will be seen from figure 1 that a kind of precast concrete arch bridge in-situ layer construction method of the present embodiment, including arch component 1,
Prefabrication cast-in-place layer 2 and vault in-situ layer 6, step are：
Step 1：Arch component 1 and prefabrication cast-in-place layer 2 is integral prefabricated is made；
Step 2：Distinguish pre-buried lateral connection reinforcing bar 3 and top plate longitudinal reinforcement 7 in the side of prefabrication cast-in-place layer 2；
Step 3：Encircleing component 1, by design drawing requirement, pre-buried top plate connects reinforcing bar 8 and web reinforcement 4 respectively when prefabricated；
Step 4：2 side of prefabrication cast-in-place layer carries out dabbing processing, and the front end area of prefabrication cast-in-place layer 2 is for pouring vault
In-situ layer 6, side equidistant interval setting of the lateral connection reinforcing bar 3 in vault in-situ layer 6；
Step 5：Arrangement top plate transverse steel 5 and top plate are vertical by drawing respectively at the reserved location of vault in-situ layer 6
To reinforcing bar 7, top plate transverse steel 5 and lateral connection reinforcing bar 3 are welded and fixed during the installation process；
Step 6：After the completion of welding, the concreting work of vault in-situ layer 6 is carried out, prefabrication cast-in-place layer 2 is existing in vault
It pours when layer 6 pours and achievees the effect that side mould, need to set up template and this process of support when vault in-situ layer 6 pours to reduce.
The present embodiment has the function that template and supporting by will encircle component 1 and prefabrication cast-in-place layer 2 is integral prefabricated is made,
When reduction later stage vault in-situ layer 6 pours, face side and carry out template installation and fixed process, reduces construction cost, quickening construction
Progress, this method is simple and reasonable for structure, easy to use, reliable, and can greatly improve construction in-situ layer construction quality and work
Cheng Jindu.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (2)
1. a kind of precast concrete arch bridge in-situ layer construction method, including arch component (1), prefabrication cast-in-place layer (2) and vault are cast-in-place
Layer (6), it is characterised in that：Its step is：
Step 1：Arch component (1) and prefabrication cast-in-place layer (2) is integral prefabricated is made；
Step 2：Distinguish pre-buried lateral connection reinforcing bar (3) and top plate longitudinal reinforcement (7) in the side of prefabrication cast-in-place layer (2)；
Step 3：Encircleing component (1), by design drawing requirement, pre-buried top plate connects reinforcing bar (8) and web reinforcement respectively when prefabricated
(4)；
Step 4：Prefabrication cast-in-place layer (2) side carries out dabbing processing, and the front end area of prefabrication cast-in-place layer (2) is for pouring vault
In-situ layer (6)；
Step 5：Arrangement top plate transverse steel (5) and top plate are vertical by drawing respectively at the reserved location of vault in-situ layer (6)
To reinforcing bar (7), top plate transverse steel (5) and lateral connection reinforcing bar (3) are welded and fixed during the installation process；
Step 6：After the completion of welding, the concreting work of vault in-situ layer (6) is carried out.
2. a kind of precast concrete arch bridge in-situ layer construction method according to claim 1, it is characterised in that：The cross
Side equidistant interval to connection reinforcing bar (3) in vault in-situ layer (6) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810815105.0A CN108797364A (en) | 2018-07-24 | 2018-07-24 | A kind of precast concrete arch bridge in-situ layer construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810815105.0A CN108797364A (en) | 2018-07-24 | 2018-07-24 | A kind of precast concrete arch bridge in-situ layer construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108797364A true CN108797364A (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810815105.0A Pending CN108797364A (en) | 2018-07-24 | 2018-07-24 | A kind of precast concrete arch bridge in-situ layer construction method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493360A (en) * | 2011-12-29 | 2012-06-13 | 浙江大东吴集团建设有限公司 | Reinforced concrete arch bridge construction method |
| KR20150066295A (en) * | 2013-12-06 | 2015-06-16 | 금호산업주식회사 | Reinforcing method of crossing structure by using segmental block assembly |
| CN204940102U (en) * | 2014-12-31 | 2016-01-06 | 深圳市华阳国际工程设计有限公司 | A kind of arch bridge syndeton |
| CN108166525A (en) * | 2017-12-05 | 2018-06-15 | 中建五局第三建设有限公司 | A kind of half prefabricated assembled pipe gallery spliced with cast-in-place hidden girder and its construction method |
-
2018
- 2018-07-24 CN CN201810815105.0A patent/CN108797364A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493360A (en) * | 2011-12-29 | 2012-06-13 | 浙江大东吴集团建设有限公司 | Reinforced concrete arch bridge construction method |
| KR20150066295A (en) * | 2013-12-06 | 2015-06-16 | 금호산업주식회사 | Reinforcing method of crossing structure by using segmental block assembly |
| CN204940102U (en) * | 2014-12-31 | 2016-01-06 | 深圳市华阳国际工程设计有限公司 | A kind of arch bridge syndeton |
| CN108166525A (en) * | 2017-12-05 | 2018-06-15 | 中建五局第三建设有限公司 | A kind of half prefabricated assembled pipe gallery spliced with cast-in-place hidden girder and its construction method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |
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| RJ01 | Rejection of invention patent application after publication |