CN101099012B - A connecting arrangement for connecting reinforcement bars - Google Patents
A connecting arrangement for connecting reinforcement bars Download PDFInfo
- Publication number
- CN101099012B CN101099012B CN2005800370421A CN200580037042A CN101099012B CN 101099012 B CN101099012 B CN 101099012B CN 2005800370421 A CN2005800370421 A CN 2005800370421A CN 200580037042 A CN200580037042 A CN 200580037042A CN 101099012 B CN101099012 B CN 101099012B
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- China
- Prior art keywords
- concrete component
- bracing piece
- helical structure
- linkage
- chamber
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- 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
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The present invention provides for a connecting arrangement (100), for connecting a first reinforced concrete element (40) to a second reinforced concrete element (60) including a first concrete element having a first reinforcement bar (30) extending therefrom, a second concrete element having a second reinforcement bar (50) extending therefrom, said first and second reinforcement bars having enlarged end portions (32, 52), an enclosure (98) between the interface of said first and second concrete elements to contain a bonding medium (20), a helical structure (96), dimensioned to receive the first reinforcement bar and the second reinforcement bar, said helical structure further including at least one bar extending throughout the length of the helical structure along the inner periphery of the helical structure and said first or second concrete element having a bore ( 41) therethrough the enclosure to allow the bonding medium to be introduced.
Description
Technical field
The present invention relates to a kind of linkage, in order to connect the bracing piece of adjacent concrete elements, therefore when in conjunction with the time connect each root bracing piece, thereby they are just as a single bracing piece that runs through the concrete component of whole assembling.
Background technology
Concrete is the material of widespread usage in building trade.But concrete is a kind of fragile material, and this material performance under pressure is fine, but just bad under stretching.Be unacceptable in structure, and especially to building trade.In order to increase concrete performance, introduce steel usually, as the method for strengthening.
Thereby the steel bracing piece that uses in concrete structure needs terminal with the terminal length of making than stock that combines usually.Requirement connects bracing piece with a kind of like this method, and the mechanical property of bar that makes disconnection is near the single continuous bar of equal length.
Therefore, pay particular attention to the connection details in the place that bracing piece combines.
At present, can by the overlap joint connection, mechanical connection or welding any one bracing piece is combined.
Bracing piece is arranged side by side to be connected with linking together to implement to overlap by arranging, so rod end is axially to setover.Owing to overlapped according to relevant design rules bar needs, use more steel to form lap length.Cause serious obstructing problem at join domain when in addition, the overlap joint of bar has.
Common mechanical connector can be the connector of threaded connector and grouting.
Make threaded connector by means of inner screw sheath, this inner screw sheath with will in conjunction with each of two bar ends form screw thread combination.Because the screw thread of leading-in pole has just reduced the effective bar size for strengthening.Test also shows because fatigue damage in time makes system failure have high possibility.
For the connector of grouting, the precision of locating these connectors is for correct and to be easy to install be important.
At last, welding quality depends on ambient conditions and workman's ability, with being welded to connect of producing.The shortcoming of this method is the character that the heat that is incorporated into joint in welding process may change material, and simultaneously in some cases, this bar weakens.This is unacceptable.
An object of the present invention is to overcome or improve one or several of above problem in the prior art at least.
Any one discussion of above-mentioned prior art is not providing as technician's general world knowledge explanation.
Summary of the invention
The present invention relates to first bracing piece is connected to the linkage of second bracing piece.
According to a first aspect of the invention, provide a kind of in order to strengthen the linkage that concrete component is connected to the second reinforcement concrete component with first, it comprises first concrete component that has from first bracing piece of its extension, have from second concrete component of second bracing piece of its extension, described first and second bracing piece has the end portion of expansion, a chamber between the interface of described first and second concrete component is to contain cementing medium, a helical structure, it is sized to to admit first bracing piece and second bracing piece, described helical structure also comprises and runs through at least one bar that helical structure length is extended along this helical structure inner rim, described first or second concrete component has the hole of running through this chamber simultaneously, so that allow to introduce cementing medium.
When stretching, the interaction between helical structure, first and second bracing pieces and the cementing agent is to provide strong connection.
According to the first embodiment of the present invention, strengthen second bracing piece of concrete component groove of surface formation second from its extension, when therefore being connected, form a chamber when arrangement and with first concrete component.
According to a second embodiment of the present invention, form a groove on first surface of strengthening concrete component, first bracing piece extends from this, forms a chamber when therefore being connected when arrangement and with second concrete component.
A third embodiment in accordance with the invention is strengthened forming a groove on the two the surface of concrete component at first and second, therefore when arrangement and when being connected with each other, forms a chamber.
According to a first aspect of the invention, a kind of linkage is provided, in order to first bracing piece in the concrete structure is connected to second bracing piece, this device comprises first bracing piece, second bracing piece, described first and second bracing piece has the end portion of expansion, a helical structure, being sized to of this helical structure to admitting first bracing piece and second bracing piece, described helical structure comprises that also at least one runs through bar that helical structure length extends along the helical structure inner rim and an enclosure space to be received in the helical structure that wherein has first and second bracing piece, and described chamber has at least one inlet to allow to introduce cementing medium.
In a preferred embodiment of the invention, this helical structure is columniform.
In another embodiment of the present invention, this helical structure is Frusto-conical.
Description of drawings
Understand the present invention in order to fill part, will only describe embodiments of the invention by way of example, and with reference to the accompanying drawings, wherein
Fig. 1 represents first embodiment of linkage of the present invention;
The power flow graph of linkage when Fig. 2 represents to stretch;
Fig. 3 is illustrated in the connector that will use in this device;
Fig. 4 is illustrated in the bracing piece that will use in this device;
Fig. 5 represents second embodiment of connector of the present invention;
Fig. 6 represents the 3rd embodiment of linkage of the present invention;
Fig. 7 represents the 4th embodiment of linkage of the present invention; And
Fig. 8 represents to be used in another device of the helical structure in this device.
Accompanying drawing need not to draw in proportion.
The specific embodiment
Now will carry out reference to preferred enforcement of the present invention in detail, the example of this invention is represented in the accompanying drawings.The preferred embodiments of the present invention do not plan these embodiment the most widely aspect limited.Otherwise the present invention attempts to contain many variations, modification and equivalents, and this variation, modification and equivalents may be included in the spirit of the present invention and scope that is limited by described accessory claim.In addition, in the following detailed description of embodiment, set detailed label, so that the understanding to present embodiment is provided.
With reference to accompanying drawing, an embodiment of linkage 100 sees Fig. 1.This linkage is used in the construction industry at first so that connect the concrete structure or the pre-cast concrete structures of the reinforcement of combination, therefore, as seeing in Fig. 1, linkage 100 is used for first bracing piece 30 of first concrete component 40 is connected to second bracing piece 50 of second concrete component 60 thereby first concrete component 40 is connected to second concrete component 60.
Fig. 1 is illustrated in the example of the linkage 100 that uses in the pre-cast concrete element device.
Steel pole (being called bracing piece) is incorporated in the concrete component to strengthen concrete component or piece, therefore at the two they functional down of extruding force and tensile force.Have the concrete component of introducing steel pole and be called the reinforcement concrete component.
The bracing piece that is first and second bracing pieces, 30,50 forms can be incorporated in first and second concrete components 40,60 by any known method.
Thereby, need a chamber 98 to keep cementing medium 20, so that the helical structure 96 and first and second bracing pieces 30,50 interact for keeping cementing medium 20 to finish linkage.This chamber 98 is set between the interface of first and second concrete component 40,60.In other words, this chamber 98 is arranged between first and second concrete component 40,60, and in being arranged in linkage the time first bracing piece 30 from that surface that first concrete component 40 extends and second bracing piece between that surface of second concrete component, 60 extensions.
Of the present invention first, second, third and the difference of the 4th embodiment be, the present invention is provided with the different compartments in chamber.
In first embodiment shown in Figure 1, use linkage 100 to be connected to second bracing piece 50 of second concrete component 60 with first bracing piece 30 with first concrete component 40.
In first embodiment of Fig. 1, second concrete component 60 is provided with a depression, is formed on the lip-deep groove 90 and sidewall 91 of second concrete component 60.This surface of second concrete component is second bracing piece 50 that surface from its extension.At random and as shown in Figure 1, second concrete component 60 is provided with groove 90 and sidewall 91.For the precast concrete device, only any one of concrete component need be provided with depression, therefore when being in the appropriate location, can form chamber 98 at the concrete component of the linkage 100 that will locate.
As seeing among Fig. 1, second bracing piece 50 extends from the groove 90 of second concrete component 60.This second concrete component 60 also comprises at least one opening, is the form in the hole 41 of passing sidewall 91, to allow to introduce cementing medium 20.
The inner rim of connector 10 is provided with at least one bar 95 that runs through the length extension of helical structure 96.In Fig. 3, see an embodiment of helical structure 96 in detail.
Also as in Fig. 1, seeing, at the end 31,51 of approximating first and second bracing piece 30,50 end 32,52 of expansion is set, in Fig. 4, can clearlyer see.The advantage of the end 32,52 of this expansion will be described later.
When locating the location when being used for according to use of the present invention, first and second bracing piece is received within the scope of helical structure 96, as seeing in Fig. 1.
When using, second concrete component 60 is placed towards being attached thereto first bracing piece 30 that connects with groove 90.This helical structure 96 is placed on the top of upwardly extending first bracing piece 30 then so first bracing piece 30 is placed within the scope of helical structure 96.
Then, second concrete component 60 is placed on first concrete component 40 thereby forms chamber 98, and therefore second bracing piece 50 is placed in the scope, is in the relation of close or adjacency simultaneously with first bracing piece 30.
As seeing at Fig. 1 and 4, end 31 and 51 is provided with the end 32 and 52 of expansion.The part 32 and 52 that enlarges is expressed as whole, but also can append on the end 31 and 51, so they is different in kinds with first and second bracing pieces 30,50 one-tenths.For example, can size is fixed as to append to end than terminal 31 and 51 big disk or the button of diameter.In addition, the part 32,52 of expansion even can be that the material different with bracing piece 30,52 constitutes.
When first and second concrete components 40,60 are in the appropriate location, by at least one hole 41 cementing medium 20 is incorporated in the chamber 98, can use high-voltage power supply or other method to introduce cementing medium 20.When introducing pressure, second hole 42 preferably is set as outlet, therefore the formation of 98 internal pressures will can not take place in the chamber.In addition, having second outlet allows chamber 98 to be filled up cementing medium 20 fully.In case cementing medium 20 installs, linkage 100 is just finished.
The purpose of linkage 100 is such, and when discrete concrete component was assembled each other, each bracing piece was connected that they have the single bracing piece that runs through whole concrete component assembly like this.
When standing tensile force, this tensile force affacts linkage 100.
The end the 32, the 52nd that enlarges, favourable, because it prevents that first and second bracing piece 30,50 from slipping away from linkage 100, this is undesirable.
Fig. 2 represents to show that the effect of the advantage of linkage of the present invention tries hard to.As in Fig. 2, seeing, interaction between the end 32,52 of cementing medium 20 and expansion is such, 20 pairs of tensile forces of cementing medium provide an opposite power, and first and second bracing pieces keep in position in the scope of helical structure 96 when applied extension force of effect like this.
In addition, in power flow graph as shown in Figure 2, the end 32,52 that enlarges is exerted all one's strength and is pointed at least one bar 95, be called power and transmit bar, this bar then make this power opposite sense first and second bracing pieces perhaps more particularly points to first and second enlarged distal tip, therefore, in chamber 98, the tensile force of outer effect is upcountry reverse.In Fig. 1,2,3,6 and 7, there are two power to transmit bar in the time of in being arranged in helical structure 96.
Because it also is that favourable therefore inside extruding force prevents that first and second bracing pieces 30,50 from slipping away when also providing power poly-in one to stand an out-draw active force with box lunch that the inward flange of spiral provides this helical structure 96 of a radially inner extruding force.
Therefore, when introducing cementing medium 20 in the chamber 98, the end 32,52 that helical structure 96, power are transmitted bar 95 and expansion matches, and applied extension force is stopped effectively like this.
Therefore linkage 100 stops tensile force effectively.Extruding force is blocked equally.
Another embodiment that describes is only different on the version in the chamber that is provided with for the linkage that will locate.
Second embodiment as shown in Figure 5 describes a kind of version in chamber 98.As shown in Figure 5, first concrete component 40 is provided with a depression, forms a groove 90 on the surface of first concrete component 40.This first concrete component 40 comprises as the feature described at second concrete component 60 of first embodiment.
When using, first concrete component 40 extends upward and locatees with first bracing piece 30, then helical structure 96 be placed on upwardly extending first bracing piece 30 above, therefore first bracing piece 30 is positioned in the internal range of helical structure 96.
Then, second concrete component 60 be placed on first concrete component 40 top with groove 90 towards this first concrete component 40.Thereby this device forms a kind of variable chamber 98, and is positioned therefore that second bracing piece 50 is positioned in the scope, and be in first bracing piece 30 near or contiguous relation.
In the third embodiment of the present invention, and as shown in Figure 6, the two is provided with the variset of groove 90 and sidewall 91 a kind of wherein first and second concrete component 40,60, and therefore bigger chamber 98 is set.
In this embodiment, can on first concrete component or second concrete component or on each of two concrete components at least one hole 41 be set, as long as this hole 41 provides the inlet that runs through that enters chamber 98.
In the fourth embodiment of the present invention shown in Figure 7, linkage is used for the structure of cast-in-site.In this structure, first and second concrete components all do not have the requirement with the depression in the chamber that is provided with for the cast-in-site form, because concrete is directly toppled over.
Fig. 8 represents another embodiment of helical structure 96, and this spiral is not a column herein, but the form of frustum of a cone device.
Claims (6)
1. linkage, in order to first concrete component is connected to second concrete component, it is characterized in that: described linkage comprises:
First concrete component has first bracing piece from its extension;
Second concrete component has second bracing piece from its extension;
Described first and second bracing piece has the end portion of expansion,
Form from the interface of described first and second concrete component and begin and along the chamber that described first concrete component and/or second concrete component extend, in order to preserve cementing medium;
Helical structure, it is sized to admitting first bracing piece and second bracing piece, and described helical structure comprises that also at least one runs through the bar that helical structure length is extended along the helical structure inner rim, and described helical structure is positioned at described chamber; And
Described first or second concrete component has the hole of running through this chamber, to allow to introduce cementing medium.
2. linkage as claimed in claim 1, wherein when described chamber when described first concrete component extends, by being set, depression forms described chamber on the surface of described first concrete component, described surface is such surface, and described first bracing piece extends from first concrete component on this surface.
3. linkage as claimed in claim 1, wherein when described chamber when described second concrete component extends, by being set, depression forms described chamber on the surface of described second concrete component, described surface is such surface, and described second bracing piece extends from second concrete component on this surface.
4. linkage as claimed in claim 1, wherein when described chamber when described first concrete component and described second concrete component extend, in that depression is set respectively on the surface of described first concrete component and on the surface of described second concrete component, when being arranged to interconnect, described first and second concrete components form described chamber by described depression.
5. linkage as claimed in claim 1, wherein helical structure is columniform.
6. linkage as claimed in claim 1, wherein helical structure is Frusto-conical.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SG200406306A SG121914A1 (en) | 2004-10-28 | 2004-10-28 | A connecting arrangement |
| SG2004063061 | 2004-10-28 | ||
| SG200406306-1 | 2004-10-28 | ||
| PCT/SG2005/000329 WO2006046929A1 (en) | 2004-10-28 | 2005-09-29 | A connecting arrangement for connecting reinforcement bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101099012A CN101099012A (en) | 2008-01-02 |
| CN101099012B true CN101099012B (en) | 2011-06-08 |
Family
ID=36228088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800370421A Active CN101099012B (en) | 2004-10-28 | 2005-09-29 | A connecting arrangement for connecting reinforcement bars |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN101099012B (en) |
| HK (1) | HK1116845A1 (en) |
| MY (1) | MY143066A (en) |
| SG (1) | SG121914A1 (en) |
| WO (1) | WO2006046929A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064624A (en) * | 2015-07-12 | 2015-11-18 | 北京工业大学 | Spiral rebar connector |
| CN105735467A (en) * | 2015-12-29 | 2016-07-06 | 上海建工五建集团有限公司 | Connecting device and method for PC (prefabricated concrete) beam and column joints |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1564303A1 (en) * | 1988-06-23 | 1990-05-15 | Мироновский Завод Железобетонных Конструкций | Method of joining bar reinforcement with anchor heads at ends |
| CN1130232A (en) * | 1995-03-01 | 1996-09-04 | 欧洲戴克斯德拉股份有限公司 | Mechanical connection for reinforcing bars |
| US6192647B1 (en) * | 1999-04-15 | 2001-02-27 | Kjell L. Dahl | High strength grouted pipe coupler |
| WO2003072986A2 (en) * | 2002-02-26 | 2003-09-04 | Dahl Kjell L | High strength grouted pipe coupler |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1548382A1 (en) * | 1988-03-17 | 1990-03-07 | Институт проблем освоения Севера СО АН СССР | Device for joining reinforcement bars of helical die-rolled stock |
| DD288419A5 (en) * | 1989-10-13 | 1991-03-28 | Veb Bmk Magdeburg,Kb Forschung, Projektirung U. Technologie,De | CONNECTION FOR CONCRETE STAIRS BY THE POSSIBILITY OF ATTACHABLE THREADING RANGE |
| JPH08319696A (en) * | 1995-05-24 | 1996-12-03 | Sumitomo Metal Ind Ltd | Screw joint for steel bar and joint fitting |
| JPH09177250A (en) * | 1995-12-27 | 1997-07-08 | Ohbayashi Corp | Screw reinforcing bar connecting sleeve structure |
| JPH09268704A (en) * | 1996-03-28 | 1997-10-14 | Taisei Corp | Joint structure of reinforcements and sleeve type joint |
-
2004
- 2004-10-28 SG SG200406306A patent/SG121914A1/en unknown
-
2005
- 2005-09-29 WO PCT/SG2005/000329 patent/WO2006046929A1/en active Application Filing
- 2005-09-29 CN CN2005800370421A patent/CN101099012B/en active Active
- 2005-10-06 MY MYPI20054704 patent/MY143066A/en unknown
-
2008
- 2008-06-30 HK HK08107255.7A patent/HK1116845A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1564303A1 (en) * | 1988-06-23 | 1990-05-15 | Мироновский Завод Железобетонных Конструкций | Method of joining bar reinforcement with anchor heads at ends |
| CN1130232A (en) * | 1995-03-01 | 1996-09-04 | 欧洲戴克斯德拉股份有限公司 | Mechanical connection for reinforcing bars |
| US6192647B1 (en) * | 1999-04-15 | 2001-02-27 | Kjell L. Dahl | High strength grouted pipe coupler |
| WO2003072986A2 (en) * | 2002-02-26 | 2003-09-04 | Dahl Kjell L | High strength grouted pipe coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| SG121914A1 (en) | 2006-05-26 |
| MY143066A (en) | 2011-02-28 |
| HK1116845A1 (en) | 2009-01-02 |
| CN101099012A (en) | 2008-01-02 |
| WO2006046929A1 (en) | 2006-05-04 |
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