CN103075013A - Building construction steel bar connection structure and connection method - Google Patents
Building construction steel bar connection structure and connection method Download PDFInfo
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- CN103075013A CN103075013A CN2013100266369A CN201310026636A CN103075013A CN 103075013 A CN103075013 A CN 103075013A CN 2013100266369 A CN2013100266369 A CN 2013100266369A CN 201310026636 A CN201310026636 A CN 201310026636A CN 103075013 A CN103075013 A CN 103075013A
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Abstract
The invention discloses a building construction steel bar connection structure and a connection method, and particularly discloses a plug-in type preformed hole grouting steel bar concentric restraining anchoring lap connection method. The structure comprises a prefabricated concrete shear wall component; a longitudinal steel bar is pre-cast in the component; a preformed hole is formed beside the bottom of the longitudinal steel bar; a grouting hole and a grout outlet hole which are communicated with a wall surface are formed above and below the preformed hole; and strengthening ribs are formed on peripheries of the hole and the longitudinal steel bar. The structure is used for the connection of longitudinal steel bars among prefabricated concrete structural components, and solves the problem that the existing connection construction of steel bars in building industry is complex.
Description
Technical field
The present invention relates to a kind of building operations steel bar connecting structure and method of attachment, be specifically related to a kind of method of attachment housing industrialization, prefabricated concrete structure member longitudinal reinforcement and a kind of plug-in type preformed hole grouting reinforcing bar of being suitable for and retrain with one heart anchoring overlap joint syndeton.
Background technology
In cast-in-place concrete structure, the connection of reinforcing bar adopts overlap joint to connect, be welded to connect or the mechanical connection method such as compression sleeve more, wherein the overlap joint of reinforcing bar connects the simplest, be welded to connect or the construction of the mechanical connection such as compression sleeve comparatively complicated, but these traditional constructions must be finished the connection of reinforcing bar before fluid concrete, are not suitable for the fabricated construction engineering method of precast concrete.
Summary of the invention
The purpose of this invention is to provide a kind of building operations steel bar connecting structure and method of attachment, utilize the reserving hole on precast unit embedded bar next door to realize connection between the longitudinal reinforcement, simple to operate, dependable performance.
Above-mentioned purpose realizes by following technical scheme:
A kind of building operations connecting method for reinforcing bars, the method adopt the mode of anchoring overlap joint to realize the connection of reinforcing bar behind fluid concrete, comprise following several step:
(a) when precast concrete shear wall, nuzzle in advance the first longitudinal reinforcement and the second longitudinal reinforcement;
(b) at the precast concrete shear wall member some holes are set, form the first longitudinal hole with reservation mode, wherein the first longitudinal hole is positioned near the first longitudinal reinforcement bottom, is substantially parallel layout with the first longitudinal reinforcement, and the second longitudinal reinforcement is inserted in the first longitudinal hole;
(c) form the contraction slit perpendicular with the first longitudinal hole with reservation mode, around cement mortar sealing contraction slit;
(d) at the first longitudinal hole and the first longitudinal reinforcement and the second longitudinal reinforcement periphery reinforcing rib is set;
(e) adopt Churn drill have the pulp effect the first transverse holes get through operation, described the first transverse holes and the first longitudinal hole intercommunication are positioned at the apical position of the first longitudinal hole
(f) adopt Churn drill have the grouting effect the second transverse holes get through operation, described the second transverse holes and the first longitudinal hole intercommunication are positioned near the bottom of the first longitudinal hole;
(g) add the filling grouting material by the second transverse holes in the first longitudinal hole, treat that slurry in the first longitudinal hole reaches closely knit when flowing out the grouting material degree from the first transverse holes, shutoff the first transverse holes is finished connection by the grouting material setting and harden.
Preferably, in described step (b), described the second longitudinal reinforcement inserts in the first longitudinal hole indirectly to overlap with the first longitudinal reinforcement anchoring and is connected; Described the first longitudinal reinforcement bottom bends or connects at the inflection point place coaxial the 3rd longitudinal reinforcement of certain-length, makes member the first longitudinal reinforcement and the second longitudinal reinforcement axially concentric.
Preferably, the inwall of described the first longitudinal hole is zigzag, corrugated, shape of threads, and its inwall hole forming method is the built-in fitting of placing the given shape face in member, treats before the concrete final set built-in fitting to be extracted out; Or the smooth straight steel pipe of placement surface, at steel tube surface brushing retarding agent, it is inboard to extract rear water brush hole wall until steel pipe.
Preferably, described reinforcing rib is helical form or ring-type, and described reinforcing rib is strengthened the reinforcing bar bending part simultaneously, and its external diameter is greater than total external diameter of the first longitudinal reinforcement, the second longitudinal reinforcement and the first longitudinal hole.
The present invention also provides a kind of building operations steel bar connecting structure, and it comprises above-mentioned building operations connecting method for reinforcing bars, and described structure comprises: first longitudinal reinforcement of nuzzling in advance when precast concrete shear wall, the second longitudinal reinforcement; On the precast concrete shear wall member with reservation mode form the first longitudinal hole and with the perpendicular contraction slit of the first longitudinal hole; Reinforcing rib; The first transverse holes and the second transverse holes; Wherein the first longitudinal hole is positioned near the first longitudinal reinforcement bottom, is substantially parallel layout with the first longitudinal reinforcement, and the second longitudinal reinforcement is inserted in the first longitudinal hole, at the first longitudinal hole and the first longitudinal reinforcement and the second longitudinal reinforcement periphery reinforcing rib is set.
Further, described the second longitudinal reinforcement inserts in the first longitudinal hole indirectly to overlap with the first longitudinal reinforcement anchoring and is connected; Described the first longitudinal reinforcement bottom bends or connects at the inflection point place coaxial the 3rd longitudinal reinforcement of certain-length, makes member the first longitudinal reinforcement and the second longitudinal reinforcement axially concentric.
Further, the inwall of described the first longitudinal hole is zigzag, corrugated, shape of threads, and its inwall hole forming method is the built-in fitting of placing the given shape face in member, treats before the concrete final set built-in fitting to be extracted out; Or the smooth straight steel pipe of placement surface, at steel tube surface brushing retarding agent, it is inboard to extract rear water brush hole wall until steel pipe.
Further, described reinforcing rib is helical form or ring-type, and described reinforcing rib is strengthened the reinforcing bar bending part simultaneously, and its external diameter is greater than total external diameter of the first longitudinal reinforcement, the second longitudinal reinforcement and the first longitudinal hole.
Beneficial effect of the present invention is as follows:
1. the reinforcing bar attended operation that realizes of the present invention is simple, and work progress does not need complicated plant equipment and facility, does not need power consumption yet.The non-smooth-shaped of reserving hole inwall, hole and embedded bar periphery pre-buried reinforcing rib can further strengthen the connection effect, so switching performance is reliable, is suitable for again the construction characteristics of housing industrialization precast concrete.Construction quality of the present invention is easy to guarantee that the job site is to do operation substantially, has fully avoided all disadvantages of traditional reinforcing bar connected mode.
2. building course environmental protection and energy saving, reduction cost, saving construction fund.
The bending place connect axially with one heart during reinforcing bar, connecting reinforcement has been realized the stress transmission between reinforcing bar, makes the junction structure more reliable.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the horizontal sectional drawing of accompanying drawing 1.
Fig. 3 is the structural representation that the present invention connects coaxial reinforcing bar.
Wherein: 1 precast concrete shear wall member, 2 first longitudinal reinforcements, 3 first longitudinal holes, 4 second transverse holes, 5 first transverse holes, 6 reinforcing ribs, 7 shrink slit, 8 cement mortar, 9 axial the 3rd longitudinal reinforcements.
The specific embodiment
Below in conjunction with drawings and Examples principle of the present invention and advantage are further elaborated.
A kind of building operations connecting method for reinforcing bars, the method adopt the mode of anchoring overlap joint to realize the connection of reinforcing bar behind fluid concrete, comprise following several step:
(a) when precast concrete shear wall, nuzzle in advance the first longitudinal reinforcement and the second longitudinal reinforcement;
(b) at the precast concrete shear wall member some holes are set, form the first longitudinal hole with reservation mode, wherein the first longitudinal hole is positioned near the first longitudinal reinforcement bottom, is substantially parallel layout with the first longitudinal reinforcement, and the second longitudinal reinforcement is inserted in the first longitudinal hole;
(c) form the contraction slit perpendicular with the first longitudinal hole with reservation mode, around cement mortar sealing contraction slit;
(d) at the first longitudinal hole and the first longitudinal reinforcement and the second longitudinal reinforcement periphery reinforcing rib is set;
(e) adopt Churn drill have the pulp effect the first transverse holes get through operation, described the first transverse holes and the first longitudinal hole intercommunication are positioned at the apical position of the first longitudinal hole
(f) adopt Churn drill have the grouting effect the second transverse holes get through operation, described the second transverse holes and the first longitudinal hole intercommunication are positioned near the bottom of the first longitudinal hole;
(g) add the filling grouting material by the second transverse holes in the first longitudinal hole, treat that slurry in the first longitudinal hole reaches closely knit when flowing out the grouting material degree from the first transverse holes, shutoff the first transverse holes is finished connection by the grouting material setting and harden.
In another embodiment, other parts are all identical with embodiment 1, and difference is, in described step (b), described the second longitudinal reinforcement inserts in the first longitudinal hole indirectly to overlap with the first longitudinal reinforcement anchoring and is connected; Described the first longitudinal reinforcement bottom bends or connects at the inflection point place coaxial the 3rd longitudinal reinforcement of certain-length, makes member the first longitudinal reinforcement and the second longitudinal reinforcement axially concentric.
In another embodiment, other parts are all identical with embodiment 1, difference is, the inwall of described the first longitudinal hole is zigzag, corrugated, shape of threads, its inwall hole forming method is the built-in fitting of placing the given shape face in member, treat before the concrete final set built-in fitting to be extracted out; Or the smooth straight steel pipe of placement surface, at steel tube surface brushing retarding agent, it is inboard to extract rear water brush hole wall until steel pipe.
In another embodiment, other parts are all identical with embodiment 1, and difference is that described reinforcing rib is helical form or ring-type, described reinforcing rib is strengthened the reinforcing bar bending part simultaneously, and its external diameter is greater than total external diameter of the first longitudinal reinforcement, the second longitudinal reinforcement and the first longitudinal hole.
The present invention also provides a kind of building operations steel bar connecting structure, and it comprises above-mentioned building operations connecting method for reinforcing bars, and described structure comprises: first longitudinal reinforcement of nuzzling in advance when precast concrete shear wall, the second longitudinal reinforcement; On the precast concrete shear wall member with reservation mode form the first longitudinal hole and with the perpendicular contraction slit of the first longitudinal hole; Reinforcing rib; The first transverse holes and the second transverse holes; Wherein the first longitudinal hole is positioned near the first longitudinal reinforcement bottom, is substantially parallel layout with the first longitudinal reinforcement, and the second longitudinal reinforcement is inserted in the first longitudinal hole, at the first longitudinal hole and the first longitudinal reinforcement and the second longitudinal reinforcement periphery reinforcing rib is set.
In another one embodiment of the present invention, other parts are all identical with embodiment 5, and difference is, described the second longitudinal reinforcement inserts in the first longitudinal hole indirectly to overlap with the first longitudinal reinforcement anchoring and is connected; Described the first longitudinal reinforcement bottom bends or connects at the inflection point place coaxial the 3rd longitudinal reinforcement of certain-length, makes member the first longitudinal reinforcement and the second longitudinal reinforcement axially concentric.
In another one embodiment of the present invention, other parts are all identical with embodiment 5, difference is, the inwall of described the first longitudinal hole is zigzag, corrugated, shape of threads, its inwall hole forming method is the built-in fitting of placing the given shape face in member, treat before the concrete final set built-in fitting to be extracted out; Or the smooth straight steel pipe of placement surface, at steel tube surface brushing retarding agent, it is inboard to extract rear water brush hole wall until steel pipe.
In another one embodiment of the present invention, other parts are all identical with embodiment 5, difference is, described reinforcing rib is helical form or ring-type, described reinforcing rib is strengthened the reinforcing bar bending part simultaneously, and its external diameter is greater than total external diameter of the first longitudinal reinforcement, the second longitudinal reinforcement and the first longitudinal hole.
Beneficial effect:
1. the reinforcing bar attended operation that realizes of the present invention is simple, and work progress does not need complicated plant equipment and facility, does not need power consumption yet.The non-smooth-shaped of reserving hole inwall, hole and embedded bar periphery pre-buried reinforcing rib can further strengthen the connection effect, so switching performance is reliable, is suitable for again the construction characteristics of housing industrialization precast concrete.Construction quality of the present invention is easy to guarantee that the job site is to do operation substantially, has fully avoided all disadvantages of traditional reinforcing bar connected mode.
2. building course environmental protection and energy saving, reduction cost, saving construction fund.
The bending place connect axially with one heart during reinforcing bar, connecting reinforcement has been realized the stress transmission between reinforcing bar, makes the junction structure more reliable.
Need to prove that the preferred embodiments of the present invention comprise that the inventor is used to implement known optimal mode of the present invention.The change of preferred embodiment is apparent for those of ordinary skills after reading above-mentioned explanation.The inventor wishes the change that the those of ordinary skill rational Application is such, and the inventor thinks and offers some clarification on different application at this and also can realize the present invention.Therefore, the present invention includes all modifications and the equivalents of the purport of quoting in the claim, this allows in applicable law.In addition, any combination of all possible change of above-mentioned key element is also comprised by the present invention, unless point out in addition or obvious contradiction in context at this.
Claims (8)
1. a building operations connecting method for reinforcing bars is characterized in that, the method adopts the mode of anchoring overlap joint to realize the connection of reinforcing bar behind fluid concrete, comprising:
(a) when precast concrete shear wall, nuzzle in advance the first longitudinal reinforcement and the second longitudinal reinforcement;
(b) at the precast concrete shear wall member some holes are set, form the first longitudinal hole with reservation mode, wherein the first longitudinal hole is positioned near the first longitudinal reinforcement bottom, is substantially parallel layout with the first longitudinal reinforcement, and the second longitudinal reinforcement is inserted in the first longitudinal hole;
(c) form the contraction slit perpendicular with the first longitudinal hole with reservation mode, around cement mortar sealing contraction slit;
(d) at the first longitudinal hole and the first longitudinal reinforcement and the second longitudinal reinforcement periphery reinforcing rib is set;
(e) adopt Churn drill have the pulp effect the first transverse holes get through operation, described the first transverse holes and the first longitudinal hole intercommunication are positioned at the apical position of the first longitudinal hole
(f) adopt Churn drill have the grouting effect the second transverse holes get through operation, described the second transverse holes and the first longitudinal hole intercommunication are positioned near the bottom of the first longitudinal hole;
(g) add the filling grouting material by the second transverse holes in the first longitudinal hole, treat that slurry in the first longitudinal hole reaches closely knit when flowing out the grouting material degree from the first transverse holes, shutoff the first transverse holes is finished connection by the grouting material setting and harden.
2. a kind of building operations connecting method for reinforcing bars according to claim 1 is characterized in that: in step (b), described the second longitudinal reinforcement inserts in the first longitudinal hole indirectly to overlap with the first longitudinal reinforcement anchoring and is connected; Described the first longitudinal reinforcement bottom bends or connects at the inflection point place coaxial the 3rd longitudinal reinforcement of certain-length, makes member the first longitudinal reinforcement and the second longitudinal reinforcement axially concentric.
3. a kind of building operations connecting method for reinforcing bars according to claim 1 and 2, it is characterized in that: the inwall of described the first longitudinal hole is zigzag, corrugated, shape of threads, its inwall hole forming method is the built-in fitting of placing the given shape face in member, treat before the concrete final set built-in fitting to be extracted out; Or the smooth straight steel pipe of placement surface, at steel tube surface brushing retarding agent, it is inboard to extract rear water brush hole wall until steel pipe.
4. a kind of building operations connecting method for reinforcing bars according to claim 1, it is characterized in that: described reinforcing rib is helical form or ring-type, described reinforcing rib is strengthened the reinforcing bar bending part simultaneously, and its external diameter is greater than total external diameter of the first longitudinal reinforcement, the second longitudinal reinforcement and the first longitudinal hole.
5. building operations steel bar connecting structure, it comprises each described building operations connecting method for reinforcing bars such as claim 1-4, it is characterized in that described structure comprises: first longitudinal reinforcement of when precast concrete shear wall, nuzzling in advance, the second longitudinal reinforcement; On the precast concrete shear wall member with reservation mode form the first longitudinal hole and with the perpendicular contraction slit of the first longitudinal hole; Reinforcing rib; The first transverse holes and the second transverse holes; Wherein the first longitudinal hole is positioned near the first longitudinal reinforcement bottom, is substantially parallel layout with the first longitudinal reinforcement, and the second longitudinal reinforcement is inserted in the first longitudinal hole, at the first longitudinal hole and the first longitudinal reinforcement and the second longitudinal reinforcement periphery reinforcing rib is set.
6. a kind of building operations steel bar connecting structure according to claim 5 is characterized in that: described the second longitudinal reinforcement inserts in the first longitudinal hole indirectly to overlap with the first longitudinal reinforcement anchoring and is connected; Described the first longitudinal reinforcement bottom bends or connects at the inflection point place coaxial the 3rd longitudinal reinforcement of certain-length, makes member the first longitudinal reinforcement and the second longitudinal reinforcement axially concentric.
7. according to claim 5 or 6 described a kind of building operations steel bar connecting structures, it is characterized in that: the inwall of described the first longitudinal hole is zigzag, corrugated, shape of threads, its inwall hole forming method is the built-in fitting of placing the given shape face in member, treat before the concrete final set built-in fitting to be extracted out; Or the smooth straight steel pipe of placement surface, at steel tube surface brushing retarding agent, it is inboard to extract rear water brush hole wall until steel pipe.
8. a kind of building operations steel bar connecting structure according to claim 5, it is characterized in that: described reinforcing rib is helical form or ring-type, described reinforcing rib is strengthened the reinforcing bar bending part simultaneously, and its external diameter is greater than total external diameter of the first longitudinal reinforcement, the second longitudinal reinforcement and the first longitudinal hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310026636.9A CN103075013B (en) | 2013-01-21 | 2013-01-21 | Building construction steel bar connection structure and connection method |
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| CN201310026636.9A CN103075013B (en) | 2013-01-21 | 2013-01-21 | Building construction steel bar connection structure and connection method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153461A (en) * | 2013-05-16 | 2014-11-19 | 叶新 | Precast concrete structural member and method for building construction longitudinal connection between structural members |
| CN104594640A (en) * | 2014-12-01 | 2015-05-06 | 中建七局第四建筑有限公司 | High-rise building secondary structure foam concrete cast-in-situ bar planting technology and construction method thereof |
| CN105256922A (en) * | 2014-07-16 | 2016-01-20 | 中铁建工集团有限公司 | Mounting method of light-weight wall boards |
| CN106193329A (en) * | 2016-08-29 | 2016-12-07 | 朱凤起 | Concrete wall structure and construction method thereof |
| CN107542220A (en) * | 2016-06-24 | 2018-01-05 | 中国二十冶集团有限公司 | Large-scale variable cross-section concrete column upper strata vertical reinforcement construction method |
| CN109281397A (en) * | 2017-07-19 | 2019-01-29 | 沈阳建筑大学 | Boundling is in the milk entirely constrains slurry anchor connection method |
| CN109281398A (en) * | 2017-07-19 | 2019-01-29 | 沈阳建筑大学 | Boundling half, which is in the milk, constrains slurry anchor connection method |
| CN109881817A (en) * | 2018-06-26 | 2019-06-14 | 清华大学 | A kind of precast concrete shear wall horizontal joint box out overlapped forming hole method |
| CN110331787A (en) * | 2019-07-09 | 2019-10-15 | 中铁十九局集团第二工程有限公司 | The construction method that part concrete is connect with beam body concrete is poured after a kind of enhancing beam body sealing end |
| CN111851304A (en) * | 2020-07-24 | 2020-10-30 | 南京林业大学 | L-shaped slot-in type connection method of prefabricated bridge pier and bearing platform |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153461A (en) * | 2013-05-16 | 2014-11-19 | 叶新 | Precast concrete structural member and method for building construction longitudinal connection between structural members |
| CN105256922A (en) * | 2014-07-16 | 2016-01-20 | 中铁建工集团有限公司 | Mounting method of light-weight wall boards |
| CN104594640A (en) * | 2014-12-01 | 2015-05-06 | 中建七局第四建筑有限公司 | High-rise building secondary structure foam concrete cast-in-situ bar planting technology and construction method thereof |
| CN107542220A (en) * | 2016-06-24 | 2018-01-05 | 中国二十冶集团有限公司 | Large-scale variable cross-section concrete column upper strata vertical reinforcement construction method |
| CN107542220B (en) * | 2016-06-24 | 2019-09-13 | 中国二十冶集团有限公司 | Large-scale variable cross-section concrete column upper layer vertical reinforcement construction method |
| CN106193329A (en) * | 2016-08-29 | 2016-12-07 | 朱凤起 | Concrete wall structure and construction method thereof |
| CN106193329B (en) * | 2016-08-29 | 2019-03-15 | 朱凤起 | Concrete wall structure and its construction method |
| CN109281397A (en) * | 2017-07-19 | 2019-01-29 | 沈阳建筑大学 | Boundling is in the milk entirely constrains slurry anchor connection method |
| CN109281398A (en) * | 2017-07-19 | 2019-01-29 | 沈阳建筑大学 | Boundling half, which is in the milk, constrains slurry anchor connection method |
| CN109881817A (en) * | 2018-06-26 | 2019-06-14 | 清华大学 | A kind of precast concrete shear wall horizontal joint box out overlapped forming hole method |
| CN110331787A (en) * | 2019-07-09 | 2019-10-15 | 中铁十九局集团第二工程有限公司 | The construction method that part concrete is connect with beam body concrete is poured after a kind of enhancing beam body sealing end |
| CN111851304A (en) * | 2020-07-24 | 2020-10-30 | 南京林业大学 | L-shaped slot-in type connection method of prefabricated bridge pier and bearing platform |
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Effective date of registration: 20171218 Address after: 432000 Hubei province Xiaogan city Xiaochang County Economic Development Zone Patentee after: Hubei Yuhui New Type Building Material Co., Ltd. Address before: 158100 east side of Beijing University of Li Min Development Zone, Harbin, Heilongjiang Co-patentee before: Hubei Yuhui New Type Building Material Co., Ltd. Patentee before: Heilongjiang Yuhui New Building Materials Co., Ltd. |