CN111705630A - Prefabricated hollow pier with unconnected inner steel bars - Google Patents
Prefabricated hollow pier with unconnected inner steel bars Download PDFInfo
- Publication number
- CN111705630A CN111705630A CN202010482716.5A CN202010482716A CN111705630A CN 111705630 A CN111705630 A CN 111705630A CN 202010482716 A CN202010482716 A CN 202010482716A CN 111705630 A CN111705630 A CN 111705630A
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- CN
- China
- Prior art keywords
- pier
- steel bars
- main body
- bearing platform
- capping beam
- 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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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- 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
- E01D2101/26—Concrete reinforced
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a prefabricated hollow pier with unconnected inner side reinforcing steel bars, which comprises a hollow 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, the inner side and the outer side of the pier main body are respectively provided with inner side longitudinal reinforcing steel bars and outer side longitudinal reinforcing steel bars, the outer side longitudinal reinforcing steel bars are respectively connected with the capping beam and the bearing platform through connecting members, and the inner side longitudinal reinforcing steel bars do not extend into the capping beam and the bearing platform. The grouting sleeve does not need to be arranged on the inner longitudinal steel bar and the outer longitudinal steel bar in the hollow pier main body; not only effectively promote the pier bottom of pier main part and connect the position concrete placement quality, do not influence the power transmission performance of structure simultaneously.
Description
Technical Field
The invention relates to the technical field of bridge pier construction, in particular to a prefabricated hollow bridge pier with unconnected inner steel bars.
Background
In the prior art, the construction of the fabricated bridge structure can accelerate the construction speed, reduce the influence on environmental traffic, reduce dangerous works such as high-altitude operation and the like, and has good social and economic benefits.
In practical application, the prefabricated bridge pier is limited by field hoisting equipment and transportation capacity, so that a light prefabricated bridge pier is urgently needed, and the application range of the prefabricated bridge pier is expanded.
The hollow prefabricated pier is connected with the bearing platform or the capping beam structure in a conventional reinforcing steel bar arrangement mode, longitudinal reinforcing steel bars are arranged inside and outside the hollow prefabricated pier, and the longitudinal reinforcing steel bars between the vertical columns and the bearing platform and the capping beam are connected through grouting sleeves.
However, the diameter of the grouting sleeve is larger than that of the steel bar, the diameter of the grouting sleeve corresponding to the steel bar with the diameter of 40mm is 95mm, when the wall thickness of the hollow pier is thin, the inner layer of grouting sleeve and the outer layer of grouting sleeve are arranged simultaneously, the arrangement space is restricted, and the precast concrete pouring quality control is not facilitated.
The person skilled in the art is dedicated to solving the above technical drawbacks.
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 hollow pier with unconnected inner steel bars, which comprises a hollow 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; inner longitudinal steel bars and outer longitudinal steel bars are arranged on the inner side and the outer side of the pier main body respectively, the outer longitudinal steel bars are connected with the capping beam and the bearing platform respectively through connecting members, and the inner longitudinal steel bars do not extend into the capping beam and the bearing platform; reinforcing steel bars are respectively arranged at the positions of the pier main body, which need to be connected, at the top end and the bottom end; one side of the reinforcing steel bar is tightly attached to the inner longitudinal steel bar and can be welded or lap-jointed.
Preferably, a stirrup is arranged between the outer longitudinal main reinforcement and the inner longitudinal reinforcement.
Preferably, the connection member may be a grout sleeve or a metal corrugated pipe, and may be provided in the pier body or in the connected cap and capping beams.
Preferably, a mortar cushion layer or epoxy glue is arranged between the pier main body and the bearing platform as well as between the pier main body and the cap beam.
The invention has the beneficial effects that:
due to the structural design, the grouting sleeve does not need to be arranged on the inner side longitudinal steel bar and the outer side longitudinal steel bar in the hollow pier main body;
not only effectively promote the pier bottom of pier main part and connect the position concrete placement quality, do not influence the power transmission performance of structure simultaneously.
Drawings
FIG. 1 is a schematic elevational view of the present invention;
FIG. 2 is a schematic sectional elevation view of the present invention;
FIG. 3 is a schematic structural view of a cross section of the present invention;
fig. 4 is an enlarged schematic structural view of a portion a in fig. 2.
In the figure: the hollow pier comprises a hollow pier main body 1, longitudinal steel bars on the outer side 2, longitudinal steel bars on the inner side 3, stirrups 4, connecting members 5, reinforcing steel bars 6 and a cushion layer 7.
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 4, a prefabricated hollow pier with non-connected inner steel bars comprises a hollow pier main body 1, wherein a capping beam and a bearing platform are respectively arranged at the top end and the bottom end of the pier main body 1; the inside and outside of pier main part 1 is provided with inboard longitudinal reinforcement 3 and outside longitudinal reinforcement 2 respectively, and outside longitudinal reinforcement 2 is connected with bent cap and cushion cap through connecting elements 5 respectively, and inboard longitudinal reinforcement 3 does not stretch into bent cap and cushion cap.
Specifically, the pier body 1 is of a concrete structure.
Specifically, a stirrup 4 is arranged between the outer longitudinal main reinforcement 2 and the inner longitudinal reinforcement 3 according to the structural requirements.
Specifically, the connection members 5 are grout sleeves, and the connection members 5 are respectively provided in the pier body 1 and in the capping beams.
Specifically, a work cushion layer 7 is arranged between the pier main body 1 and the bearing platform and between the pier main body and the capping beam, and the work cushion layer 7 is a mortar cushion layer.
Specifically, the pier main body 1 is provided with reinforcing steel bars 6 at the positions where the top end and the bottom end need to be connected, and the reinforcing steel bars 6 are U-shaped.
Specifically, one side of the reinforcing steel bar 6 is tightly attached to the inner longitudinal steel bar 3 and is fixed in a welding mode.
Specifically, the inner longitudinal reinforcements 3 are not anchored to the bearing platform or the capping beam, but anchored to the concrete of the pier body 1 itself through the reinforcing reinforcements 6, thereby preventing the inner longitudinal reinforcements 3 from being damaged due to a pressure applied thereto due to weak anchoring.
In some embodiments, the reinforcing bars 6 may be provided in other shapes such as V-shape, S-shape, etc.
In some embodiments, the inner longitudinal steel bar 3 may be bent at the bottom of the pier body 1, and configured in a U shape, a V shape, or an S shape, so as to enhance the self-anchoring of the inner longitudinal steel bar 3.
In some embodiments, the inner longitudinal steel bar 3 may be bent at the bottom of the pier body 1, and may be configured in a U shape, a V shape, or an S shape, so as to enhance the anchoring of the inner longitudinal steel bar 3 itself without providing the reinforcing steel bar 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 (4)
1. The utility model provides a prefabricated hollow pier that inboard reinforcing bar does not connect, includes hollow pier main part, its characterized in that: the top end and the bottom end of the pier main body are respectively provided with a capping beam and a bearing platform; inner longitudinal steel bars and outer longitudinal steel bars are arranged on the inner side and the outer side of the pier main body respectively, the outer longitudinal steel bars are connected with the capping beam and the bearing platform respectively through connecting members, and the inner longitudinal steel bars do not extend into the capping beam and the bearing platform; reinforcing steel bars are respectively arranged at the positions of the pier main body, which need to be connected, at the top end and the bottom end; one side of the reinforcing steel bar is tightly attached to the inner longitudinal steel bar.
2. The precast hollow pier without the connection of the inner reinforcing bars according to claim 1, wherein: and stirrups are arranged between the outer side longitudinal main reinforcement and the inner side longitudinal steel bars.
3. The precast hollow pier without the connection of the inner reinforcing bars according to claim 1, wherein: the connecting member is a pipe.
4. The precast hollow pier without the connection of the inner reinforcing bars according to claim 1, wherein: and a work cushion layer is arranged between the pier main body and the bearing platform as well as between the pier main body and the capping beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482716.5A CN111705630B (en) | 2020-06-01 | 2020-06-01 | Prefabricated hollow pier with unconnected inner steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482716.5A CN111705630B (en) | 2020-06-01 | 2020-06-01 | Prefabricated hollow pier with unconnected inner steel bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111705630A true CN111705630A (en) | 2020-09-25 |
| CN111705630B CN111705630B (en) | 2021-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010482716.5A Active CN111705630B (en) | 2020-06-01 | 2020-06-01 | Prefabricated hollow pier with unconnected inner steel bars |
Country Status (1)
| Country | Link |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160109629A (en) * | 2015-03-12 | 2016-09-21 | 고려대학교 산학협력단 | Connection structure for internally confined hollow rc column-foundation connection reinforced with external tube and the method for the same |
| CN107806109A (en) * | 2017-09-28 | 2018-03-16 | 中交第公路勘察设计研究院有限公司 | Precast assembly bridge pier attachment means and its construction method |
| CN107932700A (en) * | 2017-12-22 | 2018-04-20 | 建华建材（江苏）有限公司 | Prefabricated high-strength concrete bridge pier and its molding die and manufacture method |
| CN109837831A (en) * | 2019-03-29 | 2019-06-04 | 上海应用技术大学 | A kind of centrifugation prefabricated assembled concrete bridge pier and construction method |
| CN109853363A (en) * | 2018-12-18 | 2019-06-07 | 中交第二公路勘察设计研究院有限公司 | Pipe pier and cushion cap connection structure and construction method |
| CN110656574A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Method for manufacturing bridge pier |
-
2020
- 2020-06-01 CN CN202010482716.5A patent/CN111705630B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160109629A (en) * | 2015-03-12 | 2016-09-21 | 고려대학교 산학협력단 | Connection structure for internally confined hollow rc column-foundation connection reinforced with external tube and the method for the same |
| CN107806109A (en) * | 2017-09-28 | 2018-03-16 | 中交第公路勘察设计研究院有限公司 | Precast assembly bridge pier attachment means and its construction method |
| CN107932700A (en) * | 2017-12-22 | 2018-04-20 | 建华建材（江苏）有限公司 | Prefabricated high-strength concrete bridge pier and its molding die and manufacture method |
| CN110656574A (en) * | 2018-06-29 | 2020-01-07 | 比亚迪股份有限公司 | Method for manufacturing bridge pier |
| CN109853363A (en) * | 2018-12-18 | 2019-06-07 | 中交第二公路勘察设计研究院有限公司 | Pipe pier and cushion cap connection structure and construction method |
| CN109837831A (en) * | 2019-03-29 | 2019-06-04 | 上海应用技术大学 | A kind of centrifugation prefabricated assembled concrete bridge pier and construction method |
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| Publication number | Publication date |
|---|---|
| CN111705630B (en) | 2021-09-10 |
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