CN111549976A - Novel precast concrete frame column and mounting method - Google Patents
Novel precast concrete frame column and mounting method Download PDFInfo
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- CN111549976A CN111549976A CN202010426482.2A CN202010426482A CN111549976A CN 111549976 A CN111549976 A CN 111549976A CN 202010426482 A CN202010426482 A CN 202010426482A CN 111549976 A CN111549976 A CN 111549976A
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- precast concrete
- frame column
- steel
- concrete frame
- column
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- 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
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a novel precast concrete frame column and an installation method; the main body of the precast concrete frame column is a precast concrete column (3), a plurality of longitudinal steel bars (4) and transverse stirrups are arranged in the precast concrete column (3) in parallel, and the lower parts of the longitudinal steel bars (4) extend out to the lower end of the precast concrete column (3); each longitudinal steel bar (4) extending out of the upper part of the precast concrete column (3) is connected with a steel sleeve (1) through threads, and the number of the steel sleeves (1), the number of the longitudinal steel bars (4) and the number of the steel sleeves (1) are equal; and stirrups (2) for fixing the structure of the steel sleeve (1) are arranged around the steel sleeve. According to the invention, the structure of the frame column is improved, the steel sleeve is arranged at the top of the precast concrete frame column, and the connected longitudinal steel bars are adjusted to the lower part of the frame column, so that a lower grouting hole and a grout outlet hole are not required to be arranged; the structure of the frame column is simplified, and the problem of incompact grouting is avoided.
Description
Technical Field
The invention belongs to the field of civil engineering, and particularly relates to a novel precast concrete frame plate and an installation method thereof.
Background
The precast concrete frame structure is characterized in that a concrete frame is decomposed into a plurality of beam column transportation units, and a structural form of a finished frame is formed through field connection, so that the product standardization, the manufacturing industrialization and the like can be realized, the modern target of the building industry in China is met, and more applications are obtained; wherein the joining of the precast concrete frame columns becomes of exceptional importance.
Among the prior art, the vertical connection of most precast concrete post adopts modes such as steel sleeve grout connection, steel bar thick liquid anchor overlap joint, wherein most adopt sleeve grout to connect, the sleeve is arranged in the bottom of prefabricated frame post, the sleeve need set up grout hole and go up out the grout hole simultaneously, the present biggest problem is the closely knit degree that can't guarantee the slip casting, the lack of slip casting quality testing means has simultaneously led to the fact the potential safety hazard of prefabricated frame nodal connection, the popularization of assembled frame structure has seriously been influenced.
Application number CN2016206985961 discloses a node for precast concrete frame column assembled is connected, and this node includes concrete column, lower concrete column, steel joint and concatenation steel sheet, one section of upper and lower concrete column all is connected with the steel joint, the steel joint includes apron, steel case, bottom plate and otic placode. The upper concrete and the lower concrete are spliced relatively, the bevel ends of the respective steel joints are spliced relatively, and the bevel ends of the respective steel joints are contacted and subjected to girth welding to form a welding line. This application has avoided the connection problem of traditional node, but the intensity of node can't guarantee, and the potential safety hazard still can't be got rid of.
Disclosure of Invention
In order to overcome the disadvantages of the prior art, a first object of the present invention is to provide a novel precast concrete frame column; the second purpose of the invention is to provide a novel mounting method of a precast concrete frame column; by improving the structure and the mounting method of the frame column, particularly the grouting method, the compactness of the connection node of the frame column is ensured, and the safety of the wall is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a novel precast concrete frame column comprises a precast concrete column, wherein a plurality of longitudinal steel bars and transverse stirrups are arranged in the precast concrete column in parallel, and the lower parts of the longitudinal steel bars extend out of the lower end of the precast concrete column; the longitudinal steel bar extending out of the upper part of the precast concrete column is connected with the steel sleeve through threads; and stirrups for fixing the structure of the steel sleeve are bound around the steel sleeve.
As the preferable technical scheme of the application, each longitudinal steel bar extending out of the upper part of the precast concrete column is connected with a steel sleeve through threads.
As a preferred technical scheme of the application, the number of the longitudinal steel bars is equal to that of the steel sleeves.
As the preferable technical scheme of the application, the lower part of the precast concrete column is provided with a shear key.
As the preferable technical scheme of the application, the steel sleeve is made or customized for the steel pipe.
A novel precast concrete frame column connecting structure mainly comprises an upper layer precast concrete frame column and a lower layer precast concrete frame column, wherein the upper layer precast concrete frame column and the lower layer precast concrete frame column are connected in a matched mode through longitudinal steel bars and steel sleeves; and a plurality of longitudinal steel bars of the upper-layer precast concrete frame column are respectively connected to the steel sleeve of the lower-layer precast concrete shear wall frame column.
A novel connecting structure of a precast concrete frame column mainly comprises an upper precast concrete frame column and a lower precast concrete frame column, wherein the upper precast concrete frame column and the lower precast concrete frame column are connected in a matched mode; longitudinal steel bars of the upper-layer precast concrete frame column are respectively in threaded connection with a steel sleeve of the lower-layer precast concrete frame column; the connecting part of the upper precast concrete frame column and the lower precast concrete frame column is provided with a superposed beam, and the top and the bottom of the superposed beam are respectively provided with an upper steel bar of the superposed beam and a bottom steel bar of the superposed beam; a cast-in-place concrete layer is arranged in a space formed by the superposed beams and the outer portion of the steel sleeve, and grouting materials are arranged in gaps between longitudinal steel bars of the upper-layer precast concrete frame column and the steel sleeve.
And the connecting position of the steel sleeve and the longitudinal steel bar is determined according to the top surface of the cast-in-place layer of the composite beam.
As the preferable technical scheme of the application, the lower part of the lower-layer steel sleeve is connected with the upper part of the upper-layer longitudinal steel bar thread.
A novel installation method of a precast concrete frame column comprises the following steps:
(1) hoisting the precast concrete frame column in place, hoisting the superposed beam, and arranging the upper steel bar of the superposed beam;
(2) temporarily plugging a steel sleeve of a lower-layer precast concrete frame column, pouring a cast-in-place concrete layer, removing the temporary plugging of the steel sleeve of the lower-layer precast concrete shear wall board after the concrete reaches the strength, pouring grouting material into the steel sleeve, hoisting an upper-layer precast concrete frame column after the steel sleeve is filled, inserting longitudinal steel bars of an upper-layer wall board into the steel sleeve, installing shear keys in place, and supplementing the grouting material around the shear keys according to the required grouting material amount.
Advantageous effects
Compared with the prior art, the novel precast concrete frame column and the installation method provided by the invention have the following beneficial effects:
(1) according to the invention, the structure of the frame column is improved, the steel sleeve is arranged at the top of the precast concrete frame column, and the connected longitudinal steel bars are adjusted to the lower part of the frame column, so that a lower grouting hole and a grout outlet hole are not required to be arranged; the frame column structure is simplified;
(2) the grouting method of the frame column is improved, so that the compactness of the connection node of the frame column is guaranteed, the connection performance is reliable, the safety of the column body of the frame column is improved, and the popularization of the precast concrete frame column is promoted.
Drawings
Fig. 1 is a schematic structural view of a novel precast concrete frame column according to the present invention;
FIG. 2 is a schematic view of a novel precast concrete frame column connection joint of the present invention;
wherein, 1-steel sleeve; 2-hooping; 3-prefabricating a concrete column; 4-longitudinal steel bars; 5-a shear bond; 6-steel bars at the bottom of the superposed beam; 7-a superposed beam; 8-upper reinforcing steel bars of the superposed beams; 9-casting a concrete layer in situ; 10-grouting material; 11-longitudinal steel bars of the upper-layer precast concrete frame column; 12-upper precast concrete frame column.
Detailed Description
In order that the present invention may be more clearly understood, the following detailed description is given in conjunction with the examples. The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1
Referring to fig. 1, a novel precast concrete frame column comprises a precast concrete column 3, wherein a plurality of longitudinal steel bars 4 and transverse stirrups are arranged in the precast concrete column 3 in parallel, and the lower parts of the longitudinal steel bars 4 extend out of the lower end of the precast concrete column 3; each longitudinal steel bar 4 extending out of the upper part of the precast concrete column 3 is connected with a steel sleeve 1 through threads; and stirrups 2 for fixing the structure of the steel sleeve 1 are bound around the steel sleeve 1.
Example 2
The rest is the same as that of the embodiment 1, and the difference is that the bottom of the precast concrete column 3 of the embodiment is also provided with a shear key 5; the steel sleeve 1 may be made of a steel pipe or may be commercially available or custom-made.
Example 3
Referring to fig. 1-2, a novel connecting structure of a precast concrete frame column mainly comprises an upper precast concrete frame column and a lower precast concrete frame column, wherein the upper and lower adjacent two layers of concrete frame columns are connected in a matching manner through longitudinal steel bars 11 of the upper precast concrete frame column and a steel sleeve 1 of the lower layer; longitudinal steel bars 11 of the upper-layer precast concrete frame column are respectively in threaded connection with the steel sleeve 1 of the lower-layer precast concrete frame column; the connecting part of the upper precast concrete frame column 12 and the lower precast concrete frame column is provided with a superposed beam 7, and the top and the bottom of the superposed beam 7 are respectively provided with a superposed beam upper reinforcing steel bar 8 and a superposed beam bottom reinforcing steel bar 9; a cast-in-place concrete layer 9 is arranged in a space formed by the superposed beam 7 and the outer part of the steel sleeve 1, and grouting material 10 is arranged in a gap between a longitudinal steel bar 11 of the upper-layer precast concrete frame column and the steel sleeve 1.
Example 4
A novel installation method of a precast concrete frame column comprises the following steps:
(1) hoisting the precast concrete frame column in place, hoisting the superposed beam 7, and arranging a steel bar 8 at the upper part of the superposed beam; (2) temporarily plugging a steel sleeve 1 of a lower-layer precast concrete frame column, pouring a cast-in-place concrete layer 9, removing the temporary plugging of the steel sleeve 1 of the lower-layer precast concrete frame column after concrete reaches the strength, pouring a grouting material 10 into the steel sleeve 1, hoisting an upper-layer precast concrete frame column 12 after the steel sleeve 1 is fully filled, inserting longitudinal steel bars 11 of the upper-layer precast concrete frame column into the steel sleeve, installing shear keys 5 in place, and supplementing the grouting material around the shear keys according to the required grouting material amount.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
The protection of the present invention is not limited to the above embodiments. Variations and advantages that may occur to those skilled in the art may be incorporated into the invention without departing from the spirit and scope of the inventive concept and the scope of the appended claims is intended to be protected.
Claims (8)
1. A novel precast concrete frame column comprises a precast concrete column (3), and is characterized in that a plurality of longitudinal steel bars (4) and transverse stirrups are arranged in the precast concrete column (3) in parallel, and the lower parts of the longitudinal steel bars (4) extend out of the lower end of the precast concrete column (3); a longitudinal steel bar (4) extending out of the upper part of the precast concrete column (3) is in threaded connection with the steel sleeve (1); and stirrups (2) for fixing the structure of the steel sleeve (1) are bound around the steel sleeve.
2. A novel precast concrete frame column according to claim 1, wherein the number of the longitudinal steel bars (4) is equal to that of the steel sleeves (1).
3. A novel precast concrete frame column according to claim 1, wherein a shear key (5) is provided at the lower portion of the precast concrete column (3).
4. A novel precast concrete frame column according to claim 1, characterized in that the steel sleeve (1) is made or customized for a steel pipe.
5. A novel connecting structure of a precast concrete frame column according to claim 1, characterized by mainly comprising an upper precast concrete frame column and a lower precast concrete frame column, wherein the frame columns of two adjacent layers are connected in a matching way through longitudinal steel bars and steel sleeves; and a plurality of longitudinal steel bars of the upper-layer precast concrete frame column are respectively connected to the steel sleeve of the lower-layer precast concrete shear wall frame column.
6. The connection structure as claimed in claim 5, wherein the steel sleeve of the lower precast concrete frame column is threadedly connected to the longitudinal reinforcing steel of the upper precast concrete frame column.
7. The connecting structure according to claim 5, wherein the connecting part of the upper precast concrete frame column and the lower precast concrete frame column is provided with a superposed beam, and the top and the bottom of the superposed beam are respectively provided with an upper steel bar of the superposed beam and a bottom steel bar of the superposed beam; a cast-in-place concrete layer is arranged in a space formed by the superposed beam and the outer part of the steel sleeve, and grouting materials are arranged in a gap between the upper-layer longitudinal steel bars and the steel sleeve.
8. A method of installing a novel precast concrete frame column according to claim 1, comprising the steps of:
(1) hoisting the precast concrete frame column of claim 1 in place, hoisting the superposed beam (7), and arranging upper reinforcement (8) of the superposed beam;
(2) temporarily plugging a steel sleeve (1) of a lower-layer precast concrete frame column, pouring a cast-in-place concrete layer (9), removing the temporary plugging of the steel sleeve (1) of the lower-layer precast concrete shear wall board after the concrete reaches the strength, pouring grouting material (10) into the steel sleeve (1), hoisting an upper-layer precast concrete frame column (12) after the steel sleeve (1) is fully filled, inserting longitudinal steel bars (11) of an upper-layer wallboard into the steel sleeve (1), installing shear keys (5) in place, and complementing grouting material around the shear keys according to the required grouting material amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010426482.2A CN111549976A (en) | 2020-05-19 | 2020-05-19 | Novel precast concrete frame column and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010426482.2A CN111549976A (en) | 2020-05-19 | 2020-05-19 | Novel precast concrete frame column and mounting method |
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| Publication Number | Publication Date |
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| CN111549976A true CN111549976A (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010426482.2A Pending CN111549976A (en) | 2020-05-19 | 2020-05-19 | Novel precast concrete frame column and mounting method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000004632U (en) * | 1998-08-12 | 2000-03-06 | 이경재 | Hoop |
| CN1346422A (en) * | 1999-04-09 | 2002-04-24 | 国际壳牌研究有限公司 | Method for annalar sealing |
| CN206829417U (en) * | 2017-06-08 | 2018-01-02 | 陕西建筑产业投资集团有限公司 | Anchor formula connecting structure under a kind of precast shear wall vertical reinforcement bellows |
| CN108930360A (en) * | 2018-04-29 | 2018-12-04 | 山东德建集团有限公司 | Exposed inversion reinforcing bar grout sleeve precast concrete column and construction method |
| CN210459769U (en) * | 2019-06-26 | 2020-05-05 | 三一筑工科技有限公司 | Prefabricated hollow column and assembled concrete column |
-
2020
- 2020-05-19 CN CN202010426482.2A patent/CN111549976A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000004632U (en) * | 1998-08-12 | 2000-03-06 | 이경재 | Hoop |
| CN1346422A (en) * | 1999-04-09 | 2002-04-24 | 国际壳牌研究有限公司 | Method for annalar sealing |
| CN206829417U (en) * | 2017-06-08 | 2018-01-02 | 陕西建筑产业投资集团有限公司 | Anchor formula connecting structure under a kind of precast shear wall vertical reinforcement bellows |
| CN108930360A (en) * | 2018-04-29 | 2018-12-04 | 山东德建集团有限公司 | Exposed inversion reinforcing bar grout sleeve precast concrete column and construction method |
| CN210459769U (en) * | 2019-06-26 | 2020-05-05 | 三一筑工科技有限公司 | Prefabricated hollow column and assembled concrete column |
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Application publication date: 20200818 |
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