CN108086130B - Assembled T-shaped steel pipe constraint reinforced concrete bridge pier beam column connection node - Google Patents
Assembled T-shaped steel pipe constraint reinforced concrete bridge pier beam column connection node Download PDFInfo
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- CN108086130B CN108086130B CN201611046749.5A CN201611046749A CN108086130B CN 108086130 B CN108086130 B CN 108086130B CN 201611046749 A CN201611046749 A CN 201611046749A CN 108086130 B CN108086130 B CN 108086130B
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- steel
- reinforced concrete
- steel tube
- column
- concrete column
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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
-
- 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
Abstract
The invention provides an assembled T-shaped steel tube constraint reinforced concrete pier beam column connection node. Prefabricating the steel tube constraint reinforced concrete column and the bent cap in a factory, embedding a steel section shear member and a grouting sleeve in the bent cap, reserving a pier top groove and an anchor steel bar in the steel tube constraint reinforced concrete column, and finally splicing and connecting in site through grouting. The prefabricated T-shaped steel tube constraint reinforced concrete column has the advantages of full utilization of material strength, good fire resistance and earthquake resistance, good economic benefit and the like. The invention adopts an assembled structure, and has the advantages of high construction speed, high construction quality, improved construction environment, improved labor condition, resource and energy conservation, cost conservation and the like. The invention reserves a groove in the column, reserves a section steel shear member in the bent cap, and connects and fixes the two by injecting grouting material; compared with the existing connection mode of the assembled column and the bent cap, the connection reliability can be effectively improved, and the construction is more convenient.
Description
Technical Field
The invention belongs to a bridge structure, and particularly relates to an assembled T-shaped steel tube constraint reinforced concrete bridge pier beam column connection node. .
Background
The steel pipe restrained concrete is filled in the thin-wall steel pipe, the steel pipe does not directly bear external load, and the steel pipe restrained concrete mainly plays a role in restraining core concrete; as a novel structural form, the steel pipe confined concrete structure has the advantages of high bearing capacity, excellent earthquake resistance and fire resistance, full utilization of the strength of high-strength steel and concrete and the like. When the steel tube is used for restraining the steel tube of the reinforced concrete column and the steel tube is wrapped in a round shape, the steel tube is used for uniformly restraining core concrete, the tensile strength of the steel tube can be fully utilized, and the economic benefit is good; the adoption of the assembly type structure can save time to a greater extent, and the assembly type structure has been applied to building structures. According to the characteristics of industrialized construction, the connecting node of the beam column of the fabricated T-shaped steel tube constrained reinforced concrete pier is provided.
Disclosure of Invention
In order to popularize an assembled T-shaped steel tube constraint reinforced concrete column in a bridge structure, exert the mechanical property advantage of the column, reduce the material quantity to improve the economic performance, the invention provides an assembled T-shaped steel tube constraint reinforced concrete bridge pier beam column connecting node.
The technical scheme adopted for achieving the purpose of the invention is that the connecting node of the beam and the column of the assembled T-shaped steel tube restrained reinforced concrete bridge pier is characterized by comprising a capping beam, a steel tube restrained reinforced concrete column, a grouting sleeve and a foundation.
The bent cap is prefabricated for the mill. And the steel shearing members and the pier top anchoring steel bars are embedded in the capping beam. Before the grouting sleeve is formed, an annular groove is reserved on the lower surface of the capping beam, the upper end of the pier top anchoring steel bar is positioned in the capping beam, and the lower end of the pier top anchoring steel bar is positioned in the annular groove. The upper end of the section steel shear member is positioned in the capping beam, and the lower end of the section steel shear member is exposed out of the lower surface of the capping beam. The steel shear member is located intermediate the annular grooves.
The steel tube constraint reinforced concrete column is prefabricated in a factory, and is wrapped and constrained by the steel tube and reinforced concrete in the steel tube constraint reinforced concrete column. The lower end of the steel tube constraint reinforced concrete column is connected with the foundation.
And the steel tube constraint reinforced concrete column is embedded with a plurality of anchoring steel bars. The upper ends of the anchor bars are exposed from the upper surface of the steel tube-bound reinforced concrete column. And a pier top groove is reserved on the upper surface of the steel tube constraint reinforced concrete column. The pier top groove is positioned in the center of the area surrounded by the anchoring steel bars.
And after the bent cap is hoisted above the steel tube constraint reinforced concrete column, the upper ends of the anchoring steel bars extend into the annular grooves. The lower end of the steel shear member extends into the grout sleeve.
And filling grouting material into a gap between the cover beam and the steel tube constraint reinforced concrete column through a pipeline reserved on the cover beam and/or the steel tube constraint reinforced concrete column. The pier top anchoring steel bars and the anchoring steel bars in the annular groove are effectively anchored to form a grouting sleeve.
Further, the steel bars in the beam and the pier top anchoring steel bars adopt HRB335, HRB400 or RRB400 steel bars.
Further, the section steel shear member is made of Q235 steel, Q345 steel, Q390 steel or Q420 steel.
Further, a circular hole for pier top grooves and grouting sleeves to be grouted is reserved at the top of the steel tube constraint reinforced concrete column.
Further, the section steel shear member is made of Q235 steel, Q345 steel, Q390 steel or Q420 steel.
The technical effects of the invention are undoubted:
1. the round steel tube constraint reinforced concrete column can fully utilize the material strength, and has good fire resistance and earthquake resistance, good economic benefit and the like.
2. The assembled structure has the advantages of high construction speed, high construction quality, improved construction environment, improved labor condition, resource and energy conservation, cost conservation and the like.
3. Reserving a groove in the column, reserving a section steel shear member in the bent cap, and connecting and fixing the section steel shear member and the section steel shear member in a grouting material injection mode; compared with the existing connection mode of the assembled column and the bent cap, the connection reliability can be effectively improved, and the construction is more convenient.
Drawings
Fig. 1 is an elevation view of an assembled T-section steel tube restrained reinforced concrete pier.
Fig. 2 is a top view of an assembled T-section steel tube restrained reinforced concrete pier.
FIG. 3 is a sectional view of an assembled T-shaped steel tube restraining reinforced concrete pier 1-1.
FIG. 4 is a sectional view of an assembled T-shaped steel tube restraining reinforced concrete pier 2-2.
FIG. 5 is a sectional view of an assembled T-shaped steel tube restraining reinforced concrete pier 3-3.
In the figure: the steel tube reinforced concrete column comprises a capping beam 1, a steel tube constraint reinforced concrete column 2, a section steel shear member 3, a grouting sleeve 4, grouting materials 5, pier top grooves 6, concrete 7, beam inner steel bars 8, pier top anchoring steel bars 9 and anchoring steel bars 10.
Detailed Description
The present invention is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the invention, and all such substitutions and alterations are intended to be included in the scope of the invention.
Referring to fig. 1 and 2, an assembled T-shaped steel tube constraint reinforced concrete bridge pier beam column connecting node comprises a capping beam 1, a steel tube constraint reinforced concrete column 2, a grouting sleeve 4 and a foundation.
Referring to fig. 3 and 4, the bent cap 1 is prefabricated for a factory. The steel shearing members 3 and the pier top anchoring steel bars 9 are embedded in the capping beam 1. Before the grouting sleeve 4 is formed, an annular groove is reserved on the lower surface of the capping beam 1, the upper end of the pier top anchoring steel bar 9 is positioned in the capping beam 1, and the lower end of the pier top anchoring steel bar is positioned in the annular groove. The upper end of the section steel shear member 3 is positioned in the capping beam 1, and the lower end of the section steel shear member is exposed out of the lower surface of the capping beam 1. The steel shear member 3 is located in the middle of the annular groove.
Referring to fig. 5, the steel tube restrained reinforced concrete column 2 is prefabricated in a factory, and is wrapped and restrained by a steel tube and reinforced concrete in the steel tube restrained reinforced concrete column. The lower end of the steel tube constraint reinforced concrete column 2 is connected with a foundation.
And a plurality of anchoring steel bars 10 are pre-embedded in the steel tube constraint reinforced concrete column 2. The upper ends of the anchor bars 10 are exposed to the upper surface of the steel pipe-restrained reinforced concrete column 2. And a pier top groove 6 is reserved on the upper surface of the steel tube constraint reinforced concrete column 2. The pier top groove 6 is positioned at the center of the area surrounded by the anchor steel bars 10.
After the bent cap 1 is hoisted above the steel tube constraint reinforced concrete column 2, the upper ends of the anchoring steel bars 10 extend into the annular grooves. The lower end of the steel shear member 3 extends into the grout sleeve 4.
And grouting 5 into a gap between the bent cap 1 and the steel tube confined reinforced concrete column 2 through the reserved pipelines on the bent cap 1 and/or the steel tube confined reinforced concrete column 2. The pier top anchoring bars 9 and the anchoring bars 10 in the annular groove are effectively anchored to form the grouting sleeve 4.
Claims (4)
1. The utility model provides an assembled T shaped steel pipe constraint reinforced concrete pier beam column connected node which characterized in that: the steel tube reinforced concrete grouting device comprises a capping beam (1), a steel tube constraint reinforced concrete column (2), a grouting sleeve (4) and a foundation;
the bent cap (1) is prefabricated in a factory; the steel shearing members (3) and a plurality of pier top anchoring steel bars (9) are embedded in the bent cap (1); before the grouting sleeve (4) is formed, an annular groove is reserved on the lower surface of the capping beam (1), the upper end of the pier top anchoring steel bar (9) is positioned in the capping beam (1), and the lower end of the pier top anchoring steel bar is positioned in the annular groove; the upper end of the section steel shear member (3) is positioned in the capping beam (1), and the lower end of the section steel shear member is exposed out of the lower surface of the capping beam (1); the steel shear member (3) is positioned in the middle of the annular groove;
the steel tube constraint reinforced concrete column (2) is prefabricated in a factory, and is wrapped and constrained by the steel tube and reinforced concrete in the steel tube constraint reinforced concrete column; the lower end of the steel tube constraint reinforced concrete column (2) is connected with a foundation;
the steel tube constraint reinforced concrete column (2) is pre-embedded with a plurality of anchoring steel bars (10); the upper ends of the anchoring steel bars (10) are exposed out of the upper surface of the steel tube constraint reinforced concrete column (2); the steel tube constrains the upper surface of the reinforced concrete column (2) and reserves the pier top groove (6); the pier top groove (6) is positioned in the center of an area surrounded by the anchoring steel bars (10);
after the bent cap (1) is hoisted above the steel tube constraint reinforced concrete column (2), the upper ends of the anchoring steel bars (10) extend into the annular groove; the lower end of the steel shear member (3) extends into the grouting sleeve (4);
grouting material (5) is filled into a gap between the bent cap (1) and the steel tube constraint reinforced concrete column (2) through a pipeline reserved on the bent cap (1) and/or the steel tube constraint reinforced concrete column (2); pier top anchoring steel bars (9) and anchoring steel bars (10) in the annular groove are effectively anchored to form a grouting sleeve (4);
the top of the steel tube constraint reinforced concrete column (2) is provided with a circular hole for grouting the pier top groove (6) and the grouting sleeve (4).
2. The fabricated T-section steel tube constrained reinforced concrete pier beam column connection node of claim 1, wherein: the beam inner steel bars (8) and the pier top anchoring steel bars (9) adopt HRB335, HRB400 or RRB400 steel bars.
3. The fabricated T-section steel tube constrained reinforced concrete pier beam column connection node of claim 1, wherein: the section steel shear member (3) is made of Q235 steel, Q345 steel, Q390 steel or Q420 steel.
4. The fabricated T-section steel tube constrained reinforced concrete pier beam column connection node of claim 1, wherein: the section steel shear member (3) is made of Q235 steel, Q345 steel, Q390 steel or Q420 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046749.5A CN108086130B (en) | 2016-11-23 | 2016-11-23 | Assembled T-shaped steel pipe constraint reinforced concrete bridge pier beam column connection node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611046749.5A CN108086130B (en) | 2016-11-23 | 2016-11-23 | Assembled T-shaped steel pipe constraint reinforced concrete bridge pier beam column connection node |
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| Publication Number | Publication Date |
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| CN108086130A CN108086130A (en) | 2018-05-29 |
| CN108086130B true CN108086130B (en) | 2023-10-13 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485264B (en) | 2019-08-21 | 2020-06-02 | 保利长大工程有限公司 | Construction method of central pier large cantilever cover beam |
| CN112176886B (en) * | 2020-11-16 | 2022-03-22 | 山东高速建设管理集团有限公司 | Double-steel sleeve socket connection structure of prefabricated bridge pier and construction method thereof |
| CN112942078A (en) * | 2021-02-03 | 2021-06-11 | 中国地震局工程力学研究所 | L-shaped joint assembly type splicing pier |
| CN113944099B (en) * | 2021-10-29 | 2023-09-26 | 中交路桥建设有限公司 | Built-in anti-seismic steel bar structure of door pier capping beam and construction method thereof |
| CN114908870A (en) * | 2022-05-13 | 2022-08-16 | 西安建筑科技大学 | Novel assembled reinforced concrete beam column node |
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| CN106088351A (en) * | 2016-07-29 | 2016-11-09 | 初明进 | A kind of precast concrete method of attachment |
| CN106088348A (en) * | 2016-07-29 | 2016-11-09 | 初明进 | A kind of precast concrete method of attachment |
| CN206512588U (en) * | 2016-11-23 | 2017-09-22 | 重庆市中科大业建筑科技有限公司 | A kind of T-shaped steel tube confinement reinforced concrete bridge pier beam-column connection of assembled |
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2016
- 2016-11-23 CN CN201611046749.5A patent/CN108086130B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2012211452A1 (en) * | 2012-08-09 | 2014-02-27 | Jfe Steel Corporation | Joint structure of column and steel pipe pile |
| CN105421223A (en) * | 2015-12-21 | 2016-03-23 | 上海市城市建设设计研究总院 | Prefabricated pier upright column, cushion cap spigot and insertion groove combined connection structure and splicing method |
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| CN108086130A (en) | 2018-05-29 |
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