CN112813807A - Prefabricated groove-shaped concrete pier structure and construction method thereof - Google Patents
Prefabricated groove-shaped concrete pier structure and construction method thereof Download PDFInfo
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- CN112813807A CN112813807A CN202110249019.XA CN202110249019A CN112813807A CN 112813807 A CN112813807 A CN 112813807A CN 202110249019 A CN202110249019 A CN 202110249019A CN 112813807 A CN112813807 A CN 112813807A
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- Prior art keywords
- flange plate
- plate
- middle partition
- main body
- bridge pier
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- 239000004567 concrete Substances 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 title claims abstract description 9
- 238000005192 partition Methods 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 239000012790 adhesive layer Substances 0.000 claims abstract description 9
- 238000009417 prefabrication Methods 0.000 claims abstract description 6
- 230000002787 reinforcement Effects 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 3
- 239000011372 high-strength concrete Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
Images
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
本发明公开了一种预制槽形混凝土桥墩结构及其施工方法，该结构包括桥墩主体，所述桥墩主体的顶端和底端分别设置有盖梁和承台，所述桥墩主体的顶端和底端分别通过连接件与所述盖梁和所述承台连接；该施工方法包括步骤一、在预制厂分块预制翼缘板以及中隔板；步骤二、在中隔板的两端涂抹粘接层，将翼缘板以及中隔板现场拼装；步骤三、张拉连接钢筋，使翼缘板以及中隔板连接形成一个整体的桥墩主体；步骤四、吊装桥墩主体并利用连接件实现与盖梁、承台的连接。本发明可节约桥墩总材料用量；本发明的应用，使每一块构件重量都非常小、方便构件的预制、运输、吊装。
The invention discloses a prefabricated trough-shaped concrete bridge pier structure and a construction method thereof. The structure comprises a bridge pier main body, the top and bottom ends of the bridge pier main body are respectively provided with a cover beam and a cap, and the top and bottom ends of the bridge pier main body pass through the The connecting piece is connected with the cover beam and the bearing platform; the construction method includes step 1, dividing the prefabricated flange plate and the middle partition plate in a prefabrication factory; step 2, applying an adhesive layer on both ends of the middle partition plate, Assemble the flange plate and the middle partition plate on site; step 3, stretch the connecting steel bars, so that the flange plate and the middle partition plate are connected to form a whole pier main body; The connection of the platform. The invention can save the total material consumption of the bridge pier; the application of the invention makes the weight of each component very small, and facilitates the prefabrication, transportation and hoisting of the component.
Description
Technical Field
The invention relates to the field of bridge pier construction, in particular to a prefabricated groove-shaped concrete bridge pier structure and a construction method thereof.
Background
In the prior art, the pier structure is generally a solid structure such as a rectangle or a circle. Based on the concept of saving materials and building green, large-size pier structures are sometimes made into hollow structures.
However, the manufacturing and demolding of the hollow pier structure are troublesome, and particularly, the structure size is small.
Meanwhile, the existing pier is heavy in weight and difficult to transport and hoist.
Therefore, how to optimize the pier structure, save pier materials and facilitate the prefabrication, transportation and hoisting of the components becomes a technical problem which needs to be solved urgently by technical personnel in the field.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, a technical object of the present invention is to solve the problems mentioned in the above-mentioned background art.
In order to achieve the technical purpose, the invention provides a prefabricated groove-shaped concrete pier structure which comprises a pier main body, wherein the top end and the bottom end of the pier main body are respectively provided with a capping beam and a bearing platform, and the top end and the bottom end of the pier main body are respectively connected with the capping beam and the bearing platform through connecting pieces;
the pier main body comprises a flange plate and a middle partition plate, wherein a vertical stressed main reinforcement and a stirrup are arranged in the flange plate, a common reinforcement and a connecting reinforcement are arranged in the middle partition plate, and the connecting reinforcement extends out of the plate end of the middle partition plate;
the flange plate comprises an upper flange plate and a lower flange plate, the upper flange plate and the lower flange plate are respectively provided with a bonding layer at the joint of the middle partition plate, and connecting holes corresponding to the positions of the connecting steel bars are reserved in the upper flange plate and the lower flange plate respectively.
Preferably, the connecting piece is any one of a grouting sleeve, a metal corrugated pipe, a slot type connecting piece, a socket type connecting piece, high-strength concrete and a flange plate.
Preferably, the upper flange plate, the lower flange plate and the middle partition plate form a groove shape or an I shape in cross section.
Preferably, the connecting reinforcing bars penetrate through the upper flange plate and the lower flange plate.
Preferably, the bonding layer is bonding glue or cushion mortar.
The construction method of the prefabricated groove type concrete pier structure comprises the following steps:
firstly, prefabricating flange plates and a middle partition plate in blocks in a prefabrication factory;
step two, coating adhesive layers on two ends of the middle partition plate, and assembling the flange plates and the middle partition plate on site;
stretching the connecting steel bars to connect the flange plates and the middle partition plates to form an integral pier main body;
and step four, hoisting the pier main body and realizing connection with the capping beam and the bearing platform by using the connecting piece.
The invention has the beneficial effects that:
(1) the invention can save the total material consumption of the bridge pier.
(2) The application of the invention ensures that each member has very small weight, and is convenient for prefabricating, transporting and hoisting the members.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 5 is a schematic cross-sectional view at C-C in FIG. 1;
FIG. 6 is a schematic view of a segmented prefabricated flange plate and a median septum of the present invention;
FIG. 7 is a schematic view of the present invention, wherein epoxy adhesive is applied to two ends of the middle partition board and the flange plates are assembled on site as the middle partition board;
fig. 8 is a schematic view illustrating the bridge pier being connected to form an integral body by stretching the connecting bars according to the present invention;
fig. 9 is a schematic view of the bridge pier hoisting device of the invention, and the bridge pier is connected with a bearing platform and a capping beam by using a connecting joint.
In the figure: the pier comprises a pier main body 1, a capping beam 2, a bearing platform 3, a flange plate 4, a middle partition plate 5, a connecting piece 6, a stirrup 7, a common steel bar 8, a connecting steel bar 9, an adhesive layer 10 and a connecting hole 11.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Example (b):
as shown in fig. 1 to 5, a prefabricated groove-shaped concrete pier structure comprises a pier main body 1, wherein a capping beam 2 and a bearing platform 3 are respectively arranged at the top end and the bottom end of the pier main body 1, and the top end and the bottom end of the pier main body 1 are respectively connected with the capping beam 2 and the bearing platform 3 through connecting pieces 6;
the pier main body 1 comprises a flange plate 4 and a middle partition plate 5, wherein vertical stressed main reinforcements and stirrups 7 are arranged in the flange plate 4 according to stress requirements, common reinforcements 8 and connecting reinforcements 9 are arranged in the middle partition plate 5, and the connecting reinforcements 9 extend out of the plate end of the middle partition plate 5;
the flange plate 4 comprises an upper flange plate and a lower flange plate, bonding layers 10 are respectively arranged at the joints of the upper flange plate, the lower flange plate and the middle partition plate 5, and connecting holes 11 corresponding to the connecting steel bars 9 are respectively reserved in the upper flange plate and the lower flange plate.
Specifically, the connecting member 6 may adopt a connection structure such as a grouting sleeve, a metal corrugated pipe, a slot-in type connecting member, a socket-and-spigot type connecting member, high-strength concrete, a flange plate, or the like.
The connecting steel bars 9 penetrate through the upper flange plate and the lower flange plate and provide pretightening force to enable the pier main body 1 to form a whole, the connecting steel bars 9 can adopt high-strength fine-turn threaded steel bars, HRB600 steel bars or FRP (fiber reinforce Plastic) bars and other high-strength ribs, and the connecting steel bars 9 need to be tensioned after the upper flange plate, the lower flange plate and the middle partition plate 5 are assembled, so that the upper flange plate, the lower flange plate and the middle partition plate can form a whole.
Specifically, the upper flange plate, the lower flange plate and the middle partition plate 5 form a groove shape or an I shape on the cross section.
Specifically, the adhesive layer 10 is adhesive glue or cushion mortar.
The working principle of the invention is as follows: pier main part 1 is eccentric pressurized component mostly, in the reinforced concrete pier, according to pier main part 1's atress characteristics, arrange median septum 5 in the big one side of pressure, arrange sufficient stirrup 7, ordinary reinforcing bar 8 and connecting reinforcement 9 in last flange board and lower flange board simultaneously, let the reinforcing bar can bear the pulling force, even if pier main part 1 compares ordinary solid pier and has lacked a concrete like this, can not influence pier main part 1's whole atress by a wide margin.
As shown in fig. 6 to 9, a construction method of a precast groove-type concrete pier structure includes the steps of:
firstly, prefabricating a flange plate 4 and a middle partition plate 5 in blocks in a prefabrication factory;
step two, coating adhesive layers 10 at two ends of the middle partition plate 5, and assembling the flange plates 4 and the middle partition plate 5 on site;
thirdly, stretching the connecting steel bars 9 to connect the flange plates 4 and the middle partition plates 5 to form an integral pier main body 1;
and step four, hoisting the pier main body 1 and realizing connection with the capping beam 2 and the bearing platform 3 by using the connecting piece 6.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249019.XA CN112813807A (en) | 2021-03-08 | 2021-03-08 | Prefabricated groove-shaped concrete pier structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110249019.XA CN112813807A (en) | 2021-03-08 | 2021-03-08 | Prefabricated groove-shaped concrete pier structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112813807A true CN112813807A (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110249019.XA Pending CN112813807A (en) | 2021-03-08 | 2021-03-08 | Prefabricated groove-shaped concrete pier structure and construction method thereof |
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| Country | Link |
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| CN (1) | CN112813807A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100102907A (en) * | 2009-03-12 | 2010-09-27 | 한국건설기술연구원 | Method for constructing bridge piers by using precast concrete segments |
| CN110184903A (en) * | 2019-06-21 | 2019-08-30 | 中铁第四勘察设计院集团有限公司 | A kind of prefabricated tubing string assembly bridge pier of truss-like |
| CN110258310A (en) * | 2019-07-10 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | Bridge pier and bridge substructure |
| CN110565533A (en) * | 2019-09-23 | 2019-12-13 | 上海市城市建设设计研究总院（集团）有限公司 | segmented prefabricated assembled pier and construction method thereof |
| CN214783230U (en) * | 2021-03-08 | 2021-11-19 | 上海市城市建设设计研究总院（集团）有限公司 | Prefabricated groove-shaped concrete bridge pier structure |
-
2021
- 2021-03-08 CN CN202110249019.XA patent/CN112813807A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100102907A (en) * | 2009-03-12 | 2010-09-27 | 한국건설기술연구원 | Method for constructing bridge piers by using precast concrete segments |
| CN110184903A (en) * | 2019-06-21 | 2019-08-30 | 中铁第四勘察设计院集团有限公司 | A kind of prefabricated tubing string assembly bridge pier of truss-like |
| CN110258310A (en) * | 2019-07-10 | 2019-09-20 | 中铁第四勘察设计院集团有限公司 | Bridge pier and bridge substructure |
| CN110565533A (en) * | 2019-09-23 | 2019-12-13 | 上海市城市建设设计研究总院（集团）有限公司 | segmented prefabricated assembled pier and construction method thereof |
| CN214783230U (en) * | 2021-03-08 | 2021-11-19 | 上海市城市建设设计研究总院（集团）有限公司 | Prefabricated groove-shaped concrete bridge pier structure |
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