CN110725479A - Assembled steel bar connector - Google Patents
Assembled steel bar connector Download PDFInfo
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- CN110725479A CN110725479A CN201910957107.8A CN201910957107A CN110725479A CN 110725479 A CN110725479 A CN 110725479A CN 201910957107 A CN201910957107 A CN 201910957107A CN 110725479 A CN110725479 A CN 110725479A
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- connecting plate
- steel bar
- plate
- assembled
- connector
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses an assembled steel bar connector, which comprises a first connecting steel bar, an assembled connector and a second connecting steel bar; the assembled connector comprises a first connecting plate, a second connecting plate, a side plate and a connecting rod, wherein the side plate is connected with the first connecting plate and the second connecting plate, a first clamping groove and a second clamping groove are respectively formed in diagonal positions of the first connecting plate and the second connecting plate relative to the side plate, the connecting rod is embedded into the first clamping groove and the second clamping groove, and the connecting rod is parallel to the side plate; the first connecting steel bar is connected with the first connecting plate; the second connecting steel bar is connected with the second connecting plate. The introduction of the connecting rod can change the stress state of the cantilever of the first connecting plate and the second connecting plate into the stress state of simple supports at two ends, is favorable for reducing the thickness requirement of the connector on the first connecting plate, the second connecting plate and the side plate when connecting thicker longitudinal steel bars, and has reliable force transmission, lower manufacturing cost and more economy and reasonability.
Description
Technical Field
The invention relates to prefabricated reinforced concrete member connection, in particular to an assembled reinforced connector.
Background
With the transformation and upgrading of the building industry, fabricated buildings are more and more concerned by the engineering field. The prefabricated concrete structure is widely applied to buildings such as various residences, office buildings and the like as an industrialized structure form. For the fabricated concrete structure, the connection performance of the steel bars in the prefabricated parts plays an important role in the bearing capacity of the whole structure. Therefore, the development and research of the reinforcement connection technology of the prefabricated parts have become increasingly important.
Currently, the connection mode of the steel bars in the fabricated concrete structure mainly includes grouting sleeve connection, bolt connection and the like. The grouting sleeve connection is a technology for connecting reinforcing steel bars through a sleeve, and the connection technology is relatively widely applied, but has the defect that the grouting compactness is difficult to detect. Bolting is a dry process connection that can be broadly divided into two broad categories-end plate bolting and steel connector joining. The former is realized by embedding a steel plate at the end part of a prefabricated part and passing a reinforcing steel bar through a fixed end plate to realize bolt connection, the connection mode has larger steel consumption, the node area obviously rotates and is not beneficial to transmitting bending moment; the steel bar connecting structure is connected with steel bars on two sides through steel connecting pieces respectively, the tensile force of the steel bars on two sides is transmitted through the steel connecting pieces, and the connecting form is reliable in force transmission, detectable, convenient to construct and capable of achieving a certain fault-tolerant capacity.
In the existing example invention, a large construction space is usually reserved on the side plate of the steel connecting piece for conveniently installing the bolt, and as shown in fig. 1, the structure causes uneven stress on the side plate and the bottom plate of the steel connecting piece, and the thickness requirement of the side plate and the bottom plate is obviously increased.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention aims to provide the assembled steel bar connector which is simple in stress path, reliable in force transmission and low in manufacturing cost.
The technical scheme is as follows: the invention relates to an assembled steel bar connector, which comprises a first connecting steel bar, an assembled connector and a second connecting steel bar; the assembled connector comprises a first connecting plate, a second connecting plate, a side plate and a connecting rod, wherein the side plate is connected with the first connecting plate and the second connecting plate, a first clamping groove and a second clamping groove are respectively formed in diagonal positions of the first connecting plate and the second connecting plate relative to the side plate, the connecting rod is embedded into the first clamping groove and the second clamping groove, and the connecting rod is parallel to the side plate; the first connecting steel bar is connected with the first connecting plate; the second connecting steel bar is connected with the second connecting plate. The introduction of the connecting rod can reduce the thickness requirement of the connector on the first connecting plate, the second connecting plate and the side plate when connecting thicker longitudinal steel bars.
The first connecting reinforcement and the second connecting reinforcement are located on the same axis, and it is not necessary to add an additional hook member for resisting a horizontal force generated by eccentricity in the reinforced concrete. The side plate is fixed with the first connecting plate and the second connecting plate through welding. The side plates are flat plates, folded plates or arc-shaped plates. Two ends of the connecting rod are respectively connected with a first connecting plate,
The second connecting plate is fixedly connected.
In order to make full use of the height of the connector reduced by the top plate and further reduce the influence of mechanical connection on the anti-seismic performance of the prefabricated part, one end of the first connecting steel bar is provided with a first thread, the first connecting plate is provided with an internal thread hole, and the first thread section of the first connecting steel bar is screwed into the internal thread hole.
The second connecting plate is provided with a round hole, one end of the second connecting steel bar is provided with a second thread, and the second thread section of the second connecting steel bar penetrates through the round hole and is fixedly connected with the second connecting plate through nuts on two sides of the second connecting plate. The fault-tolerant performance of the connector can be improved by increasing the aperture of the round hole.
Has the advantages that: compared with the prior art, the invention has the following remarkable characteristics:
1. after the connector is connected with the first connecting steel bar and the second connecting steel bar, connecting rods for connecting the first connecting plate and the second connecting plate are arranged in the first clamping groove and the second clamping groove of the first connecting plate and the second connecting plate and are fastened, and the introduction of the connecting rods can change the stress state of the cantilevers of the first connecting plate and the second connecting plate into the stress state of simple support at two ends, so that the requirements of the connector on the thicknesses of the first connecting plate, the second connecting plate and the side plate when the thicker longitudinal steel bar is connected can be reduced, the force transmission is reliable, the manufacturing cost is lower, and the connector is more economical and reasonable;
2. the connector is connected with the first connecting reinforcing steel bars in an internal thread mode, the connector is connected with the second connecting reinforcing steel bars in a bolt connection mode, and compared with the connector with the upper connecting reinforcing steel bar and the lower connecting reinforcing steel bar both in bolt connection, the internal thread connection at the upper part can fully utilize the top plate to reduce the height of the connector, so that the influence of mechanical connection on the anti-seismic performance of the prefabricated part, such as ductility, energy consumption capacity and the like, can be reduced, the fault-tolerant performance of the connector in real engineering can be improved by increasing the hole diameter of the bolt hole through the bolt connection at the lower part, and the connector has relatively small;
3. the connector is connected with the first connecting reinforcing steel bars and the second connecting reinforcing steel bars in a mechanical connection mode, so that the wet operation of on-site assembly of the prefabricated parts can be effectively reduced, and the construction efficiency is improved;
4. the central axes of the first connecting reinforcing steel bar and the second connecting reinforcing steel bar connected by the connector are basically coincident, so that an additional hook part is not required to be added in the reinforced concrete for resisting the horizontal force generated by eccentricity, and the connecting structure of the prefabricated reinforced concrete is favorably reduced and simplified.
Drawings
FIG. 1 is a schematic structural view of a conventional steel connector;
FIG. 2 is a schematic diagram of an embodiment of the present invention;
FIG. 3 is another schematic structural view of the present invention;
FIG. 4 is a force analysis diagram of the connector without the connecting rod 24;
FIG. 5 is a force analysis diagram of the present invention.
Detailed Description
Example 1
Referring to fig. 2, an assembled reinforcing bar coupler of the present invention includes a first coupling reinforcing bar 1, an assembled coupler 2, and a second coupling reinforcing bar 3. The assembled connector 2 is composed of a first connecting plate 21, a second connecting plate 22, a side plate 23 and a connecting rod 24, wherein the arc-shaped side plate 23 is fixedly connected with the first connecting plate 21 and the second connecting plate 22 through welding seams. The first connecting reinforcement 1 and the second connecting reinforcement 3 are located on the same axis. The first connecting reinforcement 1 has a first thread 11 at one end thereof, the first connecting plate 21 has an internal threaded hole 211, and the first thread 11 of the first connecting reinforcement 1 is screwed into the internal threaded hole 211. One end of the second connecting steel bar 3 is provided with a second thread 31, the second connecting plate 22 is provided with a round hole 221, the second thread 31 of the second connecting steel bar 3 passes through the round hole 221, and the second connecting plate 22 is clamped by a nut for consolidation. The opposite positions of the first connecting plate 21 and the second connecting plate 22 fixedly connected with the side plate 23 are respectively provided with a first clamping groove 25 and a second clamping groove 26, and the connecting rod 24 is embedded in the first clamping groove 25 and the second clamping groove 26, is opposite to the side plate 23 and is arranged in parallel with the side plate 23. The two ends of the connecting rod 24 are provided with limiting nuts which are positioned outside the first connecting plate 21 and the second connecting plate 22.
Example 2
As shown in fig. 3, this embodiment is the same as the rest of embodiment 1, except that the side panel 23 is a flap. The side plate 23 may be replaced with a flat plate.
As shown in fig. 4-5, the stress analysis schematic diagram of the connector with or without the connecting rod is shown, and it can be seen from the diagram that the introduction of the connecting rod 24 can change the cantilever stress state of the first connecting plate 21 and the second connecting plate 22 into the simply supported stress state at two ends, which is beneficial to reducing the thickness requirement of the connector on the first connecting plate 21, the second connecting plate 22 and the side plate 23 when connecting thick longitudinal steel bars, and has reliable force transmission, lower cost and more economic and reasonable performance.
Claims (7)
1. The utility model provides an assembled steel bar connector which characterized in that: comprises a first connecting steel bar (1), an assembled connector (2) and a second connecting steel bar (3);
the assembled connector (2) comprises a first connecting plate (21), a second connecting plate (22), a side plate (23) and a connecting rod (24), wherein the side plate (23) is connected with the first connecting plate (21) and the second connecting plate (22), a first clamping groove (25) and a second clamping groove (26) are respectively formed in diagonal positions of the first connecting plate (21) and the second connecting plate (22) relative to the side plate (23), the connecting rod (24) is embedded into the first clamping groove (25) and the second clamping groove (26), and the connecting rod (24) is parallel to the side plate (23);
the first connecting steel bar (1) is connected with the first connecting plate (21);
and the second connecting steel bar (3) is connected with the second connecting plate (22).
2. The assembled reinforcing bar connector according to claim 1, wherein: the first connecting reinforcing steel bar (1) and the second connecting reinforcing steel bar (3) are located on the same axis.
3. The assembled reinforcing bar connector according to claim 1, wherein: the side plate (23) is fixed with the first connecting plate (21) and the second connecting plate (22) through welding.
4. An assembled reinforcing bar coupler according to claim 1 or 3, wherein: the side plates (23) are flat plates, folded plates or arc-shaped plates.
5. The assembled reinforcing bar connector according to claim 1, wherein: one end of the first connecting reinforcing steel bar (1) is provided with a first thread (11), the first connecting plate (21) is provided with an internal thread hole (211), and the first thread (11) section of the first connecting reinforcing steel bar (1) is screwed into the internal thread hole (211).
6. The assembled reinforcing bar connector according to claim 1, wherein: the second connecting plate (22) is provided with a round hole (221), one end of the second connecting steel bar (3) is provided with a second thread (31), and the second thread (31) section of the second connecting steel bar (3) penetrates through the round hole (221) and is fixedly connected with the second connecting plate (22) through nuts on two sides of the second connecting plate (22).
7. The assembled reinforcing bar connector according to claim 1, wherein: the two ends of the connecting rod (24) are respectively fixedly connected with the first connecting plate (21) and the second connecting plate (22) through limiting nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957107.8A CN110725479B (en) | 2019-10-10 | 2019-10-10 | Assembled steel bar connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957107.8A CN110725479B (en) | 2019-10-10 | 2019-10-10 | Assembled steel bar connector |
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| Publication Number | Publication Date |
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| CN110725479A true CN110725479A (en) | 2020-01-24 |
| CN110725479B CN110725479B (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910957107.8A Active CN110725479B (en) | 2019-10-10 | 2019-10-10 | Assembled steel bar connector |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921281A (en) * | 1971-10-28 | 1975-11-25 | Daido Steel Co Ltd | Method for joining steel bars |
| CN103132656A (en) * | 2013-02-19 | 2013-06-05 | 东南大学 | Connecting structure for vertical reinforcement bars of prefabricated wall parts |
| KR101752279B1 (en) * | 2015-10-02 | 2017-06-30 | (주)엔아이스틸 | Apparatus for connecting of reinforcing bar |
| CN107366390A (en) * | 2017-07-11 | 2017-11-21 | 应义淼 | A kind of conversion connection method of reinforcing bar |
| CN206752851U (en) * | 2016-11-22 | 2017-12-15 | 湖南远大工程设计有限公司 | Precast concrete bar connecting box |
| CN109898749A (en) * | 2019-04-12 | 2019-06-18 | 上海宝冶集团有限公司 | A kind of reinforcing steel bar connecting device and its construction method |
-
2019
- 2019-10-10 CN CN201910957107.8A patent/CN110725479B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921281A (en) * | 1971-10-28 | 1975-11-25 | Daido Steel Co Ltd | Method for joining steel bars |
| CN103132656A (en) * | 2013-02-19 | 2013-06-05 | 东南大学 | Connecting structure for vertical reinforcement bars of prefabricated wall parts |
| KR101752279B1 (en) * | 2015-10-02 | 2017-06-30 | (주)엔아이스틸 | Apparatus for connecting of reinforcing bar |
| CN206752851U (en) * | 2016-11-22 | 2017-12-15 | 湖南远大工程设计有限公司 | Precast concrete bar connecting box |
| CN107366390A (en) * | 2017-07-11 | 2017-11-21 | 应义淼 | A kind of conversion connection method of reinforcing bar |
| CN109898749A (en) * | 2019-04-12 | 2019-06-18 | 上海宝冶集团有限公司 | A kind of reinforcing steel bar connecting device and its construction method |
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| Publication number | Publication date |
|---|---|
| CN110725479B (en) | 2021-04-06 |
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