CN110593486A - Assembled concrete column node connection structure - Google Patents
Assembled concrete column node connection structure Download PDFInfo
- Publication number
- CN110593486A CN110593486A CN201910911087.0A CN201910911087A CN110593486A CN 110593486 A CN110593486 A CN 110593486A CN 201910911087 A CN201910911087 A CN 201910911087A CN 110593486 A CN110593486 A CN 110593486A
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- Prior art keywords
- column
- prefabricated
- stressed
- angle steel
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to an assembled concrete column joint connecting structure, which comprises a prefabricated upper column and a prefabricated lower column, wherein the bottom end section of an upper stressed column corner longitudinal rib at the column corner of the prefabricated upper column is welded on the side surface of a special angle steel, and a full grouting sleeve is reserved at the bottom of other upper stressed non-column corner longitudinal ribs; the column angle longitudinal ribs with the stress preserved at the column angle are fixedly connected with the special angle steel through threads, and the other column angle longitudinal ribs with the stress preserved at the column angle are penetrated into the full grouting sleeve and are fixedly connected through grouting slurry. The invention adopts sleeve grouting and angle steel bolt connection, the operation is simple, and the construction quality is easy to control; the angle steel has good deformation capacity and can improve the seismic performance of a joint connection area; the angle steel connected with the lower column corner rib through the bolts can effectively inhibit the grouting joint layer from being pulled off, and can restrain the cracking of the transverse concrete at the column corner root.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to an assembly type concrete column joint connecting structure.
Background
Under the development concept of building industrialization, the country has developed a series of standards and specifications of assembled structures in recent years, and makes relevant policies to promote the development, and the assembled building industry has a good situation of vigorous development as a whole.
The joint connection mode of the fabricated concrete column mainly comprises a dry connection type and a wet connection type, and each type has a plurality of specific structural forms. The dry connection is that prefabricated components processed by factories are spliced into an integral component on site in a welding connection mode, a bolt connection mode, a single-tooth connection mode and the like. The joint connection at the assembly position of the prefabricated parts is called wet connection if the prefabricated parts are integrally formed by wet work such as pouring concrete or pouring mortar. The integral member formed by the method has good anti-seismic performance, but in actual engineering, a wet-connection assembly structure such as sleeve grouting connection and slurry anchor connection is adopted, a supporting and fixing structure is often used in the assembling process to prevent the integral member from toppling, and after the assembling on a construction site is completed, the integral member needs to be detachably supported after the grouting material reaches a certain strength. The construction progress is delayed, the construction cost is increased due to the support, and the construction method is actually contrary to the requirements of the fabricated building and the building industrialization idea.
The height of industrial factory building structures such as valve halls is generally more than 30m, if adopt the assembly of traditional wet connection carrying out prefabricated post, then support and can occupy the construction site of considerable scope, bring inconvenience for the construction, and increase construction cost, delay the time limit for a project, and the fabricated construction anti-seismic performance who obtains through dry connection is relatively poor. Therefore, the novel assembled concrete column node is provided, the purposes of convenience and high efficiency in field installation and construction and stable and reliable connection can be achieved, and the assembled concrete column node has good anti-seismic performance and is a problem to be further researched.
Disclosure of Invention
In order to solve the problems, the invention provides the joint connecting structure of the assembled concrete column, which enables the grouting sleeve and the angle steel to work cooperatively, effectively combines the advantages of the grouting sleeve and the angle steel, is simple to operate, does not need additional support during construction, has high construction efficiency, and has good member connection stability and good joint seismic performance.
The technical scheme adopted by the invention is as follows: the utility model provides an assembled concrete column post node connection structure, includes column and prefabricated lower post in the prefabrication, its characterized in that: special angle steels are pre-buried at four column corners of the prefabricated upper column, straight sections formed by bending bottom sections of four upper stressed column corner longitudinal bars at the column corners of the prefabricated upper column are welded on the side surfaces of the special angle steels in a lap joint mode, and full grouting sleeves are reserved at the bottoms of other upper stressed non-column corner longitudinal bars of the prefabricated upper column;
four pre-left stressed column corner longitudinal ribs at the column corner of the prefabricated lower column penetrate through the reserved round holes in the special angle steel and are fixedly connected through nuts, and other pre-left stressed non-column corner longitudinal ribs penetrate into the full grouting sleeve and are fixedly connected through grouting slurry.
Preferably, the special angle steel comprises conventional angle steel, an upper additionally-welded steel plate and a lower additionally-welded steel plate, the upper additionally-welded steel plate is welded at the upper end of the conventional angle steel, and the lower additionally-welded steel plate is welded at the lower end of the conventional angle steel; the straight section of the upper stressed column angle longitudinal rib is welded on the side face of the conventional angle steel in an overlapping mode, and a reserved round hole for the stressed column angle longitudinal rib to penetrate through is reserved in the lower welded steel plate.
Preferably, a grouting joint layer with a certain thickness is reserved at the connecting position of the prefabricated upper column and the prefabricated lower column through a steel cushion block with the thickness of 15-20 mm, and a sealing film is arranged on the periphery of the grouting joint layer for plugging.
Preferably, the lower end of the upper stressed non-column-corner longitudinal rib is inserted into and fixed to the upper end of the full-grouting sleeve, the full-grouting sleeve is integrally embedded in the prefabricated upper column, the bottom of the full-grouting sleeve is flush with the bottom end face of the prefabricated upper column, and a grouting opening and a grout outlet are reserved on the side wall of the prefabricated upper column close to the full-grouting sleeve.
Preferably, the length of the straight section is 3 cm-5 cm greater than the height of the conventional angle steel.
Preferably, the pre-stressed longitudinal ribs of the prefabricated lower column are formed by extending the stressed longitudinal ribs of the prefabricated lower column, and the four pre-stressed column corner longitudinal ribs are provided with connecting threads.
Preferably, the diameter of a reserved round hole in the welded steel plate at the lower part of the special angle steel is 5-10 mm larger than that of a penetrating reserved lower stressed column corner longitudinal rib, and the bottom of the special angle steel is flush with the end face of the bottom of the prefabricated upper column.
The beneficial effects obtained by the invention are as follows:
(1) the sleeve grouting and angle steel bolt connection operation is simple, professional operation is not needed, and the construction quality is easy to control;
(2) the angle steel effectively replaces support under the fixing action, so that the expenditure of construction cost is reduced, and the construction efficiency is improved;
(3) the concrete column node connected by pure sleeve grouting has the advantage that a grouting joint layer is easy to pull off, so that the steel bars are pulled out of the sleeves. The angle steel connected with the lower column corner rib through the bolts can effectively inhibit the grouting joint layer from being pulled off, and can restrain the transverse concrete at the column corner root from cracking;
(4) the angle steel has good deformability, and the seismic performance of the joint connection area can be improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a special angle iron;
reference numerals: 1. pre-preparing an upper column; 11. upper stressed column corner longitudinal bars; 111. a straight section; 12. upper stressed non-column angle longitudinal bars;
2. prefabricating a lower column; 21. pre-retaining stressed column angle longitudinal ribs; 22. reserving lower stress non-column angle longitudinal bars; 3. specially manufacturing angle steel; 31. welding a steel plate on the upper part; 32. conventional angle steel; 33. welding a steel plate at the lower part; 34. a circular hole; 4. fully grouting the sleeve; 5. a nut; 6. grouting a joint layer; 7. a steel cushion block; 8. and (7) sealing the film.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments.
As shown in fig. 1-2, the fabricated concrete column joint connection structure of the present invention comprises a prefabricated upper column 1 and a prefabricated lower column 2; pre-burying special angle steels 3 at four column corners of the prefabricated upper column 1 respectively, wherein the special angle steels 3 are formed by welding conventional angle steels 32 and two steel plates (an upper additionally welded steel plate 31 and a lower additionally welded steel plate 33), and a reserved round hole 34 for allowing a stressed column corner longitudinal rib 21 to penetrate through is reserved at the column corner at the upper end part of the prefabricated lower column 2 on the lower additionally welded steel plate 33; the bottom end sections of four upper stressed column corner longitudinal ribs 11 at the column corners of the prefabricated upper column 1 are bent to form straight sections 111 which are welded on the side surfaces of the conventional angle steel 32 in a lap joint mode, and full grouting sleeves 4 which are penetrated by reserved lower stressed non-column corner longitudinal ribs 22 at the upper end parts of the prefabricated lower column 2 are reserved at the bottoms of other upper stressed non-column corner longitudinal ribs 12 in the prefabricated upper column 1; the muscle is indulged for the atress of prefabricated lower prop 2 to the atress of prefabricated lower prop 2 upper end portion is indulged the muscle and is extended and form under the reservation atress post angle (the muscle is indulged 21 and the non-post angle of reservation under the reservation and indulges muscle 22), wherein four reservation atress post angles of post angle department are indulged muscle 21 and are passed round hole 34, and connect fixedly with high strength nut 5, and other reservation atress non-post angles are indulged muscle 22 and are then penetrated in full grout sleeve 4 under reserving, connect fixedly through pouring into the thick liquids, thereby realize the post column connection with above-mentioned mode.
Further, a grouting joint layer 6 with a certain thickness is reserved at the connecting position of the prefabricated upper column 1 and the prefabricated lower column 2 through a steel cushion block 7 with the thickness of 15 mm-20 mm, and a sealing film 8 is arranged around the grouting joint layer 6 for plugging.
Furthermore, the lower ends of other upper stressed non-column angle longitudinal ribs 12 except the upper stressed column angle longitudinal ribs 11 at the four column angle positions in the prefabricated upper column 1 are inserted into the upper end of the full grouting sleeve 4 by a certain depth and fixed in position, and are integrally embedded in the prefabricated upper column 1. The bottom of the full grouting sleeve 4 is parallel and level with the bottom end face of the prefabricated upper column 1, and meanwhile, a grouting opening and a grout outlet are reserved on the prefabricated upper column side wall 1 of the full grouting sleeve 4 which is embedded in the prefabricated upper column 1.
Furthermore, the length of a straight section 111 formed by bending the bottom end sections of four upper stressed column corner longitudinal ribs 11 at the column corner of the prefabricated upper column 1 is 3 cm-5 cm greater than the height of the conventional angle steel 32.
Further, the pre-stressed longitudinal ribs (pre-stressed column angle longitudinal ribs 21 and pre-stressed non-column angle longitudinal ribs 22) of the pre-fabricated lower column 2 are formed by extending the pre-stressed longitudinal ribs of the pre-fabricated lower column 2, wherein the pre-stressed column angle longitudinal ribs 21 are reserved in four sections of column angles, thread machining is carried out on the pre-stressed column angle longitudinal ribs, and the diameter and the inner side threads of the high-strength nut 5 are matched with the pre-stressed longitudinal ribs.
Furthermore, the diameter of a reserved round hole 34 on the lower welding steel plate 33 of the special angle steel 3 is 5 mm-10 mm larger than that of the penetrated reserved lower stress non-column-corner longitudinal rib 22, and the bottom of the special angle steel 3 is flush with the bottom end face of the prefabricated upper column 1.
The foregoing shows and describes the general principles and principal structural features of the present invention. The present invention is not limited to the above examples, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an assembled concrete column post node connection structure, includes prefabricated upper prop (1) and prefabricated lower prop (2), its characterized in that: special angle steels (3) are embedded at four corners of the prefabricated upper column (1),
the bottom end sections of four upper stressed column corner longitudinal ribs (11) at the column corners of the prefabricated upper column (1) are bent to form straight sections (111) which are welded to the side surfaces of the special angle steel (3) in a lap joint mode, and full grouting sleeves (4) are reserved at the bottoms of other upper stressed non-column corner longitudinal ribs (12) of the prefabricated upper column (1);
four pre-left stressed column corner longitudinal ribs (21) at column corner positions of the prefabricated lower column (2) penetrate through reserved round holes (34) in the special angle steel (3) and are fixedly connected through nuts (5), and other pre-left stressed non-column corner longitudinal ribs (22) penetrate into the full grouting sleeve (4) and are fixedly connected through grouting slurry.
2. The fabricated concrete column node connection structure of claim 1, wherein: the special angle steel (3) comprises conventional angle steel (32), an upper additionally-welded steel plate (31) and a lower additionally-welded steel plate (33), the upper additionally-welded steel plate (31) is welded at the upper end of the conventional angle steel (32), and the lower additionally-welded steel plate (33) is welded at the lower end of the conventional angle steel (32); the straight section (111) of the upper stressed column corner longitudinal rib (11) is in lap welding with the side face of the conventional angle steel (32), and a reserved round hole (34) through which the reserved lower stressed column corner longitudinal rib (21) penetrates is reserved in the lower additionally welded steel plate (33).
3. The fabricated concrete column node connection structure of claim 1, wherein: the prefabricated upper column (1) and the prefabricated lower column (2) are connected at a position, a grouting joint layer (6) with a certain thickness is reserved at the connecting position through a steel cushion block (7) with the thickness of 15-20 mm, and a sealing film (8) is arranged on the periphery of the grouting joint layer (6) for plugging.
4. The fabricated concrete column node connection structure of claim 1, wherein: the lower end of the upper stressed non-column-corner longitudinal rib (12) is inserted into the upper end of the fully-grouted sleeve (4) and fixed, the fully-grouted sleeve (4) is integrally embedded in the prefabricated upper column (1), the bottom of the fully-grouted sleeve (4) is parallel to the bottom end face of the prefabricated upper column (1), and a grouting opening and a grout outlet are reserved on the side wall of the prefabricated upper column (1) close to the fully-grouted sleeve (4).
5. The fabricated concrete column node connection structure of claim 2, wherein: the length of the straight section (111) is 3-5 cm greater than the height of the conventional angle steel (32).
6. The fabricated concrete column node connection structure of claim 1, wherein: the pre-stressed longitudinal ribs of the prefabricated lower column (2) are formed by extending the pre-stressed longitudinal ribs of the prefabricated lower column, and the pre-stressed column angle longitudinal ribs (21) are provided with connecting threads.
7. The fabricated concrete column node connection structure of claim 1, wherein: the diameter of a reserved round hole (34) on the lower portion of the special angle steel (3) is larger than that of a reserved lower stressed column corner longitudinal rib (21) which penetrates through the reserved round hole by 5-10 mm, and the bottom of the special angle steel (3) is flush with the bottom end face of the prefabricated upper column (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911087.0A CN110593486A (en) | 2019-09-25 | 2019-09-25 | Assembled concrete column node connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911087.0A CN110593486A (en) | 2019-09-25 | 2019-09-25 | Assembled concrete column node connection structure |
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| Publication Number | Publication Date |
|---|---|
| CN110593486A true CN110593486A (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910911087.0A Pending CN110593486A (en) | 2019-09-25 | 2019-09-25 | Assembled concrete column node connection structure |
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| Country | Link |
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| CN (1) | CN110593486A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350311A (en) * | 2020-03-04 | 2020-06-30 | 昆山市建设工程质量检测中心 | Reinforcing structure for cutting off connecting steel bars in sleeve and construction method thereof |
| CN111997192A (en) * | 2020-08-06 | 2020-11-27 | 东南大学 | Precast concrete post concatenation node |
| CN114922495A (en) * | 2022-06-02 | 2022-08-19 | 华南理工大学 | Prefabricated post of rapid Assembly formula and connected node thereof |
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| CN107338911A (en) * | 2016-11-22 | 2017-11-10 | 湖南远大工程设计有限公司 | Precast shear wall steel bar connecting joints |
| CN206737141U (en) * | 2017-04-14 | 2017-12-12 | 李凯伦 | A kind of bolt connection assembled integral node |
| CN108951852A (en) * | 2018-10-16 | 2018-12-07 | 上海大禺预制构件有限公司 | A kind of prefabricated column |
| CN109914589A (en) * | 2019-03-27 | 2019-06-21 | 中国建筑标准设计研究院有限公司 | A kind of prestressed reinforced concrete prefabricated post vertical connection structure and its construction method |
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2019
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205917869U (en) * | 2016-05-05 | 2017-02-01 | 中民筑友科技投资有限公司 | Installation node |
| CN105863049A (en) * | 2016-05-26 | 2016-08-17 | 南京长江都市建筑设计股份有限公司 | Prefabricated assembled integral framework column bottom grouting structure |
| CN107338911A (en) * | 2016-11-22 | 2017-11-10 | 湖南远大工程设计有限公司 | Precast shear wall steel bar connecting joints |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350311A (en) * | 2020-03-04 | 2020-06-30 | 昆山市建设工程质量检测中心 | Reinforcing structure for cutting off connecting steel bars in sleeve and construction method thereof |
| CN111350311B (en) * | 2020-03-04 | 2020-10-27 | 昆山市建设工程质量检测中心 | Reinforcing structure for cutting off connecting steel bars in sleeve and construction method thereof |
| CN111997192A (en) * | 2020-08-06 | 2020-11-27 | 东南大学 | Precast concrete post concatenation node |
| CN114922495A (en) * | 2022-06-02 | 2022-08-19 | 华南理工大学 | Prefabricated post of rapid Assembly formula and connected node thereof |
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Effective date of registration: 20200807 Address after: 430071 No. two, No. 12, Zhongnan Road, Wuchang District, Hubei, Wuhan Applicant after: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. Applicant after: STATE GRID HUBEI ELECTRIC POWER Co.,Ltd. Address before: 430071 No. two, No. 12, Zhongnan Road, Wuchang District, Hubei, Wuhan Applicant before: CENTRAL SOUTHERN CHINA ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. |
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Application publication date: 20191220 |
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