CN210500792U - Double-tube type steel bar connecting structure between precast concrete components - Google Patents
Double-tube type steel bar connecting structure between precast concrete components Download PDFInfo
- Publication number
- CN210500792U CN210500792U CN201920886999.2U CN201920886999U CN210500792U CN 210500792 U CN210500792 U CN 210500792U CN 201920886999 U CN201920886999 U CN 201920886999U CN 210500792 U CN210500792 U CN 210500792U
- Authority
- CN
- China
- Prior art keywords
- steel bar
- reinforcing steel
- precast concrete
- penetrating hole
- double
- Prior art date
- 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.)
- Active
Links
Images
Abstract
The utility model relates to a double-tube type steel bar connecting structure between precast concrete components, which comprises a connector main body, an upper steel bar and a lower steel bar; the connector main body is a double-pipe parallel connection structure with two reinforcing steel bar penetrating holes arranged inside and 8-shaped outer contour cross section, one reinforcing steel bar penetrating hole is an upper reinforcing steel bar penetrating hole, and the other reinforcing steel bar penetrating hole is a lower reinforcing steel bar penetrating hole; the upper reinforcing steel bar is arranged in the upper reinforcing steel bar penetrating hole in a penetrating way, and the exposed end of the upper reinforcing steel bar is provided with a lower gasket and a lower sleeve; the lower reinforcing steel bar is arranged in the lower reinforcing steel bar penetrating hole in a penetrating way, and the exposed end of the lower reinforcing steel bar is provided with an upper gasket and an upper sleeve; the connector main body, the upper reinforcing steel bar, the lower gasket and the lower sleeve are embedded in the upper precast concrete member; the lower end part of the lower reinforcing steel bar is pre-buried in the lower precast concrete member. The steel bar connecting structure ensures effective transmission of stress between steel bars, reduces the construction technical requirement, is simple and convenient to construct, has low construction cost, and is easy to ensure the construction quality.
Description
Technical Field
The utility model belongs to the building structure field relates to the connection technique between the reinforcing bar, concretely relates to double cast steel bar connection structure between precast concrete component.
Background
With the rapid development of the social economy in China, the construction industry in China is also rapidly developed, and the number of assembled buildings is increasing day by day. At present, the prefabricated building is greatly developed in China, the production and construction mode is changed from extensive to industrialized, various prefabricated concrete structures are constructed in large quantities, the reinforcing steel bar connection technology among prefabricated concrete components is more and more concerned by people, the development level of the domestic prefabricated building is not high at the present stage, and the connection technology of the reinforcing steel bars of the prefabricated building has wide development space. The connection between the assembled integral structural steel bars is the key to ensure the force transmission between the prefabricated components and the overall performance of the structure.
At present, the steel bar connection modes recommended by relevant national standards mainly comprise metal sleeve grouting connection, steel bar grout anchor lap joint connection and steel bar sleeve extrusion connection. For metal sleeve grouting connection, stress transmission is carried out between discontinuous reinforcing steel bars through grouting materials and steel sleeves, but the cost of the steel sleeves is high, construction is difficult, construction quality depends on the quality of workers seriously, the construction quality is difficult to detect, prefabricated parts can not be stressed immediately after grouting and need a large amount of support. For the overlap joint of the reinforced concrete anchor, the stress of discontinuous steel bars is transmitted to the embedded steel bars in the prefabricated part through the cementing material, the pore channel material (embedded pipeline pore-forming) and the bonding stress between the concrete, so that the continuous force transmission of the steel bars is realized, but the problems that the external extending length of the reserved steel bars is large, the transportation and the production are difficult, the using amount of the grouting material is large, the construction quality is seriously dependent on the quality of workers, the construction quality is difficult to detect, the stress cannot be immediately applied after grouting, a large amount of support is needed and the like exist. The working principle of the steel bar extrusion sleeve connection is that the end parts of two steel bars to be connected are inserted into a steel sleeve, the steel sleeve is compressed by an extruder to generate plastic deformation, and the connection of the steel bars is realized by the engagement fastening force between the deformed sleeve and the ribbed steel bars.
Through the search of the prior art, the technical scheme similar to the patent is not searched.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a double cast steel bar connection structure between precast concrete component, this steel bar connection structure can reduce construction technical requirement, simple structure, construction are simple and convenient, construction cost is low, construction quality easily guarantees guaranteeing on guaranteeing the effective driven basis of stress between the reinforcing bar.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a double-pipe type steel bar connection structure between precast concrete component which characterized in that: comprises a connector main body, an upper reinforcing steel bar and a lower reinforcing steel bar; the connector main body is a double-pipe parallel-connection structure with two mutually parallel reinforcing steel bar penetrating holes arranged inside and 8-shaped outer contour cross section, wherein one reinforcing steel bar penetrating hole is an upper reinforcing steel bar penetrating hole, and the other reinforcing steel bar penetrating hole is a lower reinforcing steel bar penetrating hole; the upper reinforcing steel bar is penetrated in the upper reinforcing steel bar penetrating hole from top to bottom, a lower gasket and a lower sleeve are arranged at the exposed end of the upper reinforcing steel bar extending out of the lower end of the upper reinforcing steel bar penetrating hole, and the lower sleeve is connected with the exposed end of the upper reinforcing steel bar through threads; the lower reinforcing steel bars are arranged in the lower reinforcing steel bar penetrating holes in a penetrating way from bottom to top, upper gaskets and upper sleeves are arranged at the exposed ends of the lower reinforcing steel bars extending out of the upper ends of the lower reinforcing steel bar penetrating holes, and the upper sleeves are connected with the exposed ends of the lower reinforcing steel bars through threads;
the connector main body, the upper reinforcing steel bar, the lower gasket and the lower sleeve are pre-embedded in the upper precast concrete member, and a reserved opening for arranging the upper gasket and the upper sleeve is formed in the upper precast concrete member above the lower reinforcing steel bar penetrating hole; and the lower half part of the lower reinforcing steel bar is pre-buried in the lower precast concrete member.
Furthermore, the connector body is of an integral casting molding structure or a double-pipe welding molding structure.
And the aperture of the upper reinforcing steel bar penetrating hole is smaller than that of the lower reinforcing steel bar penetrating hole.
The utility model has the advantages and positive effect:
1. this double-pipe type steel bar connection structure wears the dress hole through setting up two reinforcing bars that match respectively with upper portion reinforcing bar and lower part reinforcing bar in the connector main part, and pre-buried upper portion reinforcing bar in upper portion precast concrete component penetrates from top to bottom and fixes with the sleeve, and pre-buried lower part reinforcing bar in with lower part precast concrete component penetrates from bottom to top and fixes with the sleeve, and this steel bar connection mode has guaranteed the effective transmission of stress between the reinforcing bar, has reduced the degree of dependence of joint quality to the people.
2. This double-pipe type steel bar connection structure has adopted wearing dress locking connection mode of connector main part, reinforcing bar, gasket and telescopic, need not the high-strength grout material, can participate in certain atress immediately after connecting, and the construction speed is fast, is fit for installing fast at the job site, improves work efficiency.
3. The connector main body adopts an integral casting molding structure and a double-pipe welding structure, and the shearing resistance of the connector main body is ensured.
4. The outer contour cross section of the connector main body is 8-shaped, the whole connector main body is designed to be an arc surface, and local damage caused by stress concentration of concrete on the periphery of the connector main body is avoided.
5. The double-tube type steel bar connecting structure has few components, simple integral structure and low manufacturing cost.
Drawings
Fig. 1 is a schematic perspective view of a connector body according to the present invention;
fig. 2 is a schematic view of the connector body of the present invention connecting to the upper and lower reinforcing bars;
fig. 3 is a front view of the double-tube type reinforcing bar connecting structure of the present invention;
fig. 4 is a longitudinal sectional view of the double-tube type reinforcing steel bar connecting structure of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.
A double-tube type steel bar connecting structure between precast concrete components, please refer to FIGS. 1-4, the invention point is:
comprising a connector body 1, an upper reinforcing bar 2 and a lower reinforcing bar 7. The connector main body is of a double-pipe parallel connection structure, two parallel reinforcing steel bar penetrating holes are formed in the connector main body, and the cross section of the outer outline of the connector main body is 8-shaped. One steel bar penetrating hole is an upper steel bar penetrating hole 1-1, and the other steel bar penetrating hole is a lower steel bar penetrating hole 1-2. The upper portion reinforcing bar from top to bottom wears to adorn in upper portion reinforcing bar wears to adorn downtheholely, the upper portion reinforcing bar that stretches out from upper portion dress hole lower extreme exposes the end and installs lower part gasket 5 and lower part sleeve 6, lower part sleeve is connected through the screw thread with upper portion reinforcing bar exposes the end, wherein lower part gasket internal diameter should be less than upper portion reinforcing bar and wears to adorn the downthehole diameter, and the external diameter of lower part gasket should be greater than the external diameter that upper portion reinforcing bar wore the body that the dress pore pair corresponded the position, so that the telescopic installation of lower part, guarantee the even transmission of stress between lower part sleeve and the pipe wall, realize the continuity of.
The lower reinforcing steel bar penetrates through the lower reinforcing steel bar penetrating hole from bottom to top, an upper gasket 4 and an upper sleeve 3 are mounted at the exposed end of the lower reinforcing steel bar extending out of the upper end of the lower reinforcing steel bar penetrating hole, and the upper sleeve is connected with the exposed end of the lower reinforcing steel bar through threads. The inner diameter of the upper gasket is smaller than the inner diameter of the lower reinforcing steel bar through hole, and the outer diameter of the upper gasket is larger than the outer diameter of the pipe body at the corresponding position of the lower reinforcing steel bar through hole, so that the upper sleeve is conveniently installed, the uniform transmission of stress between the upper sleeve and the pipe wall is ensured, and the continuity of stress transmission between the upper sleeve and the connector main body is realized.
The upper gasket and the lower gasket are thick gaskets, and the thickness of each gasket is 6-12 mm.
The connector main body, the upper reinforcing steel bars, the lower gaskets and the lower sleeves are pre-embedded in the upper precast concrete member 8, reserved openings 8-1 are formed in the upper precast concrete member and located above the lower reinforcing steel bar penetrating holes, and the reserved openings are used for arranging the upper gaskets and the upper sleeves. The lower half of the lower reinforcing bars is pre-buried in the lower precast concrete member 10.
The connector main body can adopt an integral casting molding structure and a double-pipe welding molding structure, the two molding structures can ensure the shear strength of the connector main body, and the connector main body has the advantages of high bearing capacity, high rigidity and the like.
The double-tube type steel bar connecting structure between the precast concrete components adopts the following construction method, and the construction steps are as follows:
s1 is in the mill with connector main part and upper portion reinforcing bar pre-buried to upper portion precast concrete component in to with lower part reinforcing bar and the pre-buried connection of lower part precast concrete component, specifically be:
when the upper precast concrete member is manufactured, firstly, an upper reinforcing steel bar is penetrated into an upper reinforcing steel bar penetrating hole on a connector main body from top to bottom, and a lower gasket and a lower sleeve are used for installing and fixing the upper reinforcing steel bar; then, putting the upper steel bar and the connector main body into a forming die of the upper precast concrete member together, and arranging a die core and a die block in and above the lower steel bar penetrating hole respectively; and then pouring concrete, and taking out the mold core and the modules after solidification to form an upper precast concrete member, wherein reserved holes are formed at the positions where the modules are taken out, and the reserved holes can adopt a square hole structure shown in the attached drawing.
When the lower precast concrete member is manufactured, placing the upper half section of the lower steel bar into a forming mould of the lower precast concrete member in an exposed mode, pouring concrete, and forming the lower precast concrete member after solidification;
s2 is connecting lower part reinforcing bar and connector main part at the job site, specifically is:
in a construction site, after the lower precast concrete member is installed in place, the upper end of the lower precast concrete member is coated with a grout layer 9, then the upper precast concrete member is lifted to the upper side of the lower precast concrete member and is aligned and lowered, the upper exposed section of the lower reinforcing steel bar penetrates into the lower reinforcing steel bar penetrating hole in the connector body from bottom to top, and after the lower end of the upper precast concrete member is stably contacted with the upper end of the lower precast concrete member, an upper gasket and an upper sleeve are installed in the reserved opening in the upper precast concrete member and are fixedly connected with the exposed end of the lower reinforcing steel bar.
The mortar layer material has the function of connecting the upper precast concrete member and the lower precast concrete member, and the mortar layer adopts epoxy resin mortar or other cement-based mortar.
The preferred aperture that wears the dress hole of above-mentioned upper portion reinforcing bar is slightly less than the aperture that wears the dress hole of lower part reinforcing bar, and the reason is: the upper reinforcing steel bars and the upper reinforcing steel bar penetrating holes are penetrated and installed in a prefabricated factory, so that the construction is convenient, the hole diameter of the upper reinforcing steel bar penetrating holes is slightly smaller, the fit clearance between the upper reinforcing steel bars and the upper reinforcing steel bar penetrating holes can be reduced as much as possible, and the connection strength is improved; the lower reinforcing steel bar is matched with the lower reinforcing steel bar penetrating hole in a penetrating mode on a construction site, and the aperture of the lower reinforcing steel bar penetrating hole is slightly larger in order to facilitate the penetrating and the installing of the lower reinforcing steel bar on the site and the installation and the positioning between the upper precast concrete component and the lower precast concrete component.
This double-pipe type steel bar connection mode compares in connection modes such as extrusion muffjoint, thick liquid anchor connection and sleeve grout are connected, when realizing stress transfer validity between two precast concrete members, has that the structure principle is simple, connects reliably, low cost, construction speed advantage such as fast. The working efficiency is improved, and the method has high use value and wide popularization prospect.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (3)
1. The utility model provides a double-pipe type steel bar connection structure between precast concrete component which characterized in that: comprises a connector main body, an upper reinforcing steel bar and a lower reinforcing steel bar; the connector main body is a double-pipe parallel-connection structure with two mutually parallel reinforcing steel bar penetrating holes arranged inside and 8-shaped outer contour cross section, wherein one reinforcing steel bar penetrating hole is an upper reinforcing steel bar penetrating hole, and the other reinforcing steel bar penetrating hole is a lower reinforcing steel bar penetrating hole; the upper reinforcing steel bar is penetrated in the upper reinforcing steel bar penetrating hole from top to bottom, a lower gasket and a lower sleeve are arranged at the exposed end of the upper reinforcing steel bar extending out of the lower end of the upper reinforcing steel bar penetrating hole, and the lower sleeve is connected with the exposed end of the upper reinforcing steel bar through threads; the lower reinforcing steel bars are arranged in the lower reinforcing steel bar penetrating holes in a penetrating way from bottom to top, upper gaskets and upper sleeves are arranged at the exposed ends of the lower reinforcing steel bars extending out of the upper ends of the lower reinforcing steel bar penetrating holes, and the upper sleeves are connected with the exposed ends of the lower reinforcing steel bars through threads;
the connector main body, the upper reinforcing steel bar, the lower gasket and the lower sleeve are pre-embedded in the upper precast concrete member, and a reserved opening for arranging the upper gasket and the upper sleeve is formed in the upper precast concrete member above the lower reinforcing steel bar penetrating hole; and the lower half part of the lower reinforcing steel bar is pre-buried in the lower precast concrete member.
2. The double-tube type reinforcing bar connection structure between precast concrete members according to claim 1, wherein: the connector main body is of an integral casting molding structure or a double-pipe welding molding structure.
3. The double-tube type reinforcing bar connection structure between precast concrete members according to claim 1, wherein: the aperture of the upper reinforcing steel bar penetrating hole is smaller than that of the lower reinforcing steel bar penetrating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920886999.2U CN210500792U (en) | 2019-06-13 | 2019-06-13 | Double-tube type steel bar connecting structure between precast concrete components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920886999.2U CN210500792U (en) | 2019-06-13 | 2019-06-13 | Double-tube type steel bar connecting structure between precast concrete components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210500792U true CN210500792U (en) | 2020-05-12 |
Family
ID=70578498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920886999.2U Active CN210500792U (en) | 2019-06-13 | 2019-06-13 | Double-tube type steel bar connecting structure between precast concrete components |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210500792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238963A (en) * | 2019-06-13 | 2019-09-17 | 天津城建大学 | Double-tube type steel bar connecting structure and its construction method between precast concrete |
-
2019
- 2019-06-13 CN CN201920886999.2U patent/CN210500792U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238963A (en) * | 2019-06-13 | 2019-09-17 | 天津城建大学 | Double-tube type steel bar connecting structure and its construction method between precast concrete |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204826426U (en) | Grout sleeve for steel bar connection | |
| CN103758291B (en) | A kind of shearing enhancement mode half grout sleeve | |
| CN201660972U (en) | Novel cement grouting reinforcement connecting joint | |
| CN102116075B (en) | Novel joint prepared from cement grout and steel bars | |
| CN105064619A (en) | Rebar sleeve grouting connection member for prefabricated assembled type concrete component and connection method | |
| CN103899043B (en) | Embedded pyramidal half grout sleeve | |
| CN103899044B (en) | Embedded pyramidal full grout sleeve | |
| CN105298025A (en) | Continuous spiral grouting sleeve | |
| CN204370701U (en) | For the steel concrete supporting device in assembly concrete building structure | |
| CN105064625A (en) | Grout sleeve for reinforcement connection and reinforcement connecting method | |
| CN204826423U (en) | Prefabricated assembled is reinforcing bar sleeve grout connecting piece for concrete member | |
| CN205935417U (en) | Take half grout sleeve of threaded connection spare | |
| CN105019606A (en) | Precast concrete unit steel bar grouting connecting piece and connecting method | |
| CN204826429U (en) | Cast member reinforcing bar grout connecting piece | |
| CN210500792U (en) | Double-tube type steel bar connecting structure between precast concrete components | |
| CN206157913U (en) | Assembled square steel tube concrete post and girder steel connected node | |
| CN110238963A (en) | Double-tube type steel bar connecting structure and its construction method between precast concrete | |
| CN210857596U (en) | Prefabricated assembly type non-reinforced concrete shear wall | |
| CN210067238U (en) | Half grout sleeve | |
| CN109518857B (en) | Bidirectional laminated slab side splicing joint connecting structure and laminated slab construction method | |
| CN208792627U (en) | A kind of fabricated construction straight screw sleeve connection banjo fixing butt jointing | |
| CN209397830U (en) | A kind of prefabricated superposed column of ultra-high performance concrete combination | |
| CN111021635A (en) | Three-tube type steel bar connector suitable for steel bar connection between assembled concrete shear walls | |
| CN210508061U (en) | Improved generation connection structure suitable for steel bar connection between assembled concrete member | |
| CN205976532U (en) | Sleeve grout connection structure and wall body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |