CN105781027A - Grouting sleeve and prefabricated member - Google Patents
Grouting sleeve and prefabricated member Download PDFInfo
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- CN105781027A CN105781027A CN201610267842.2A CN201610267842A CN105781027A CN 105781027 A CN105781027 A CN 105781027A CN 201610267842 A CN201610267842 A CN 201610267842A CN 105781027 A CN105781027 A CN 105781027A
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- sleeve
- sleeve body
- steel lobe
- grouting
- steel
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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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Abstract
The invention belongs to the field of constructional engineering, and particularly discloses a grouting sleeve and a prefabricated member. The grouting sleeve comprises a sleeve body, wherein the sleeve body is provided with a grouting port and an exhaust port; two ends of the sleeve body are open; fixing members are arranged in the middle of an inner cavity of the sleeve body; the inner wall of the sleeve body is provided with steel clacks; the thicknesses of the steel clacks gradually increase from the two ends to the middle of the sleeve body; the inner walls of the steel clacks are provided with inward retracted steps. The integral rigidity of the sleeve body is increased through the arrangement of the steel clacks of the grouting sleeve, wall thicknesses are decreased in the condition that an outside diameter is the same, and a grouting material is increased, so that the grouting is enabled to be more compact. In addition, poured slurry for grouting forms a fastening structure matched with an inner hollow part and the steel clacks of the sleeve in the sleeve body; the anchoring reliability of a steel bar is greatly improved; by using the grouting sleeve and the prefabricated member, the accurate axial control and radial positioning of the steel bar can be realized; the positioning accuracy between the steel bar and the grouting sleeve is guaranteed.
Description
Technical field
The invention belongs to building engineering field, particularly relate to a kind of grout sleeve and prefabricated component.
Background technology
In traditional cast-in-place concrete structure, adopt overlap joint to connect more the connection of reinforcing bar, be welded to connect or the mechanical joining methods such as compression sleeve, the construction of bar connecting is complex, and the connection of reinforcing bar must be completed before cast concrete, the connection of reinforcing bar between prefabricated component cannot be realized, thus cannot be carried out prefabricated construction.
In prior art, bar connecting between assembly concrete architectural prefab needs to use sleeve grouting to connect, two connected reinforcing bars inserted in metal sleeve and irrigate high-performance water cement mortar in the space between sleeve and reinforcing bar, after cement mortar hardening, between three, mutual build-in is thus realizing the connection of reinforcing bar.As patent CN105133795A discloses a kind of reducing type half grout sleeve, adopting seamless steel pipe as main body tube, main body tube inwall is male and fomale(M&F), and main body tube upper end connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end.Above-mentioned sleeve adds a conical pipe and plays the effect of reducing so that this grout sleeve is easily attached reinforcing bar, and makes it deform so that it is be in close contact with being connected reinforcing bar through extruding.But the setting of conical pipe makes the internal diameter of this part diminish suddenly in above-mentioned grout sleeve, owing to reinforcing bar has certain rigidity, it is difficult to so that reinforcing bar to be connected on the same line, reinforcing bar even cannot be extend into the inside, the existing defects in stress of sleeve.
In sum, need a kind of axially control being capable of reinforcing bar of exploitation and radial direction location badly, it is ensured that the positioning precision between reinforcing bar and grout sleeve, reasonable stress, cost savings, the grout sleeve of Grouted density can be effectively improved simultaneously.
Summary of the invention
It is an object of the invention to provide a kind of axially control being capable of reinforcing bar and radially position, ensure the positioning precision between reinforcing bar and grout sleeve, reasonable stress, cost savings, the grout sleeve of Grouted density can be effectively improved simultaneously, and application has the prefabricated component of this grout sleeve.
Above-mentioned purpose is to be achieved through the following technical solutions: a kind of grout sleeve, including sleeve body, described sleeve body is provided with grouting mouth and air vent, described sleeve body both ends open, it is provided with fixture in the middle part of described sleeve body inner chamber, the inwall of described sleeve body is provided with steel lobe, and the thickness of described steel lobe is become larger to middle part by sleeve body two ends, and the inwall of described steel lobe is provided with and inside contracts step.It should be noted that the step that inside contracts of indication refers to that set by steel lobe, the thickness at step place diminishes suddenly herein, namely herein steel lobe inwall towards sleeve body inwall formed an inner shrinking structure.
nullDuring grout sleeve application，In the manufacturing process of prefabricated component，Grout sleeve is embedded in prefabricated component in advance，Embedded bar is connected through one end of sleeve body with fixture，The other end of sleeve body connects outside prefabricated component，When carrying out steel reinforcement abutting joints，Reinforcing bar stretches to sleeve body inner chamber，Owing to steel lobe is thickening gradually to middle part by end，Inside in sleeve body divides and tapers into，After reinforcing bar enters inner chamber，The termination of reinforcing bar is moved to fixture under the constraint of steel lobe inwall，Until the end of reinforcing bar is connected with fixture，So，In the docking operation of reinforcing bar，Reinforcing bar can be realized accurate axially control by sleeve body，Realize radially location，Ensure the positioning precision between reinforcing bar and grout sleeve，Under preferable case，Namely multiple steel lobe it is provided with，The size of steel lobe and consistency of thickness，And when being symmetrical arranged，Docking reinforcing bar can be made on the same line，Reasonable mechanical；Reinforcing bar can being made to be positioned at the central part of inner chamber, so after grouting, the thickness of the grouting material of reinforcing bar surrounding keeps consistent, improves Grouted density, increases the grouting material bond stress to reinforcing bar simultaneously.It is pointed out that to reach above-mentioned technique effect, the thickness of described steel lobe, can not be too big near fixture place, at least ensure that reinforcing bar can be connected with fixture.
It addition, inside contract the setting of ladder, the grouting space at this place can be made to become big, be conducive to grouting material to flow to middle part, it is ensured that grouting material fills whole inner chamber, improve Grouted density.Additionally, when after grouting material molding, the interior intracavity of sleeve body forms the grout blanket with inner chamber and steel lobe mating shapes, grout blanket becomes big suddenly inside contracting its size of step place from outside to inside, namely interior big outer little solid-state structure is formed inside contracting step place, and embed mutually locking with steel lobe, add ability and the tensile strength of the anti-shearing force of sleeve joint portion, therefore the globality of binding site is better.
The setting of steel lobe increases sleeve body integral rigidity, under the premise meeting rigidity, it is possible to suitably reduces sleeve body wall thickness, saves material.Reducing wall thickness simultaneously when external diameter is identical, add grouting material so that be in the milk more closely knit, reinforcing bar is higher with the adhesive property of sleeve body entirety.Should be appreciated that described steel lobe can be and sleeve body one-piece casting molding, it is possible to be cutting processing molding, it is also possible to be that work progress is arranged in sleeve body intracavity, be flexibly connected with sleeve body.Certainly, steel lobe arrange position with grouting mouth and steam vent set by position not overlapping.
Further, the inwall of described sleeve body is provided with the steel lobe of more than two lobes.Arranging of steel lobe lobe number is mainly determined according to the size of sleeve, and steel lobe can adopt the lobe number such as two lobes, three lobes so that the adjustment space of sleeve body is bigger.
Further, between described steel lobe along the distance of the inner chamber circumference of sleeve body less than the diameter of reinforcing bar to be connected.So arrange, it is to avoid during construction reinforced bar docking, reinforcing bar inserts in the seam between steel lobe, it is achieved not docking, strengthen difficulty of construction.
Further, described steel lobe was offered slurry hole or led stock tank.Cross to starch hole or lead arranging of stock tank and ensure there are enough flowing spaces when grouting material flows to middle part on the one hand, enrich whole grout sleeve, grouting material in gap between steel lobe can be connected into entirety simultaneously, increase the adhesion between sleeve body and grouting material, the globality of grouting material is higher, and then is effectively increased the grouting material bond stress to reinforcing bar.
Further, described cross slurry hole or lead circumferentially disposed along sleeve of stock tank.So, by crossing slurry hole or leading stock tank by the gap connection between steel lobe.
Further, the bottom of described sleeve body end inner chamber is provided with annular protrusion.In the process of grouting, in order to avoid grouting material is first to open outer end overflow, annular protrusion is set in the bottom of sleeve body end inner chamber, so grouting material is played certain barrier effect, make grouting material first smoothly to sleeve body internal flow, can improve Grouted density.
Further, described steel lobe is in the shape of a spiral.So arrange, it is possible to increase the gmatjpdumamics between steel lobe and grouting material, guide grouting material to flow in sleeve body simultaneously to a certain extent, be effectively improved Grouted density.
Further, described steel lobe is provided with groove or projection.Steel lobe arranges groove or the projection of certain depth, the contact area between steel lobe and grouting material can be increased, to increase the gmatjpdumamics between itself and grouting material so that between reinforcing bar and sleeve body, power transmission is more uniform.Should be appreciated that described groove or projection can be arranged on sidewall and/or the inwall of steel lobe, described groove or projection can be horizontal, vertical or annular is arranged.If offering groove, the middle part of steel lobe sidewall or sidewall can be provided near one end of sleeve body wall, especially groove is opened in steel lobe sidewall near one end of sleeve body wall, it is possible to increase the grouting space of grouting material, and increases the contact area of steel lobe, sleeve lining and grouting material simultaneously.
Further, described steel lobe inwall is by the inside corrugated extension in end.On the one hand, taper into fixture 4 owing to the inside of sleeve body divides, it is unfavorable for that grouting material flows to middle part, steel lobe adopts undulatory inwall can ensure that grouting material has enough flowing spaces and the effect of water conservancy diversion grouting material, Grouted density can be effectively improved, on the other hand, the concavity and convexity of steel lobe inwall can be effectively increased, and then increase the gmatjpdumamics between grouting material and steel lobe, improve the anchoring strength of reinforcing bar.Under this condition, the thickness of above-mentioned steel lobe is become larger to middle part by sleeve body two ends and refers on overall trend thickening gradually, and is not properly suited for the thickness change of steel lobe local, and reflection is steel lobe thickness overall variation trend.
Further, described fixture is threaded mouth or fixing bolt.So, it is ensured that the connection of sleeve both sides reinforcing bar and fixing.
Further, described sleeve body outer surface is matsurface.When grout sleeve is as built-in fitting, sleeve body outer surface adopts rough surface, adds the anchor force between grout sleeve and concrete.
Further, the end of described sleeve body is provided with closing device, and described closing device is provided with jack hole.So arrange, it is to avoid grouting material before condensing hardening from sleeve body end spilling.During use, first by reinforcing bar through the jack hole on closing device, seal after completing the docking of reinforcing bar, then carry out grouting operation.
Further, described closing device is elastic seal ring.
Further, described closing device adopts screw thread or shackle member to be connected with sleeve body.So, closing device is formed with sleeve body and is reliably connected, and can avoid in filling process, and the phenomenon backing down closing device due to impulsive force and the gravity of itself of grouting material occurs.
Further, the two side of described closing device is provided with anchoring projection.So arranging, closing device can form certain anchor force with the grouting material of its both sides and in-situ layer, indirectly strengthens the sleeve body connection with the two.
Further, described closing device is lock sleeve, the inner chamber interference fit of described lock sleeve and described sleeve body end, and described lock sleeve is mild steel or prepared by spring steel.So arrange, after completing the docking of reinforcing bar, during sealing, lock sleeve is pushed away inward, is tapered into middle part by end owing to the inside of sleeve body divides, cause lock sleeve generation elastic deformation, and then tightly by reinforcing bar pin, reinforcing bar can be made not swing in filling process.It should be noted that when lock sleeve adopts loop configuration, the cavity ends of sleeve body is not provided with steel lobe, certainly, when the cavity ends of sleeve body arranges steel lobe, the projection of the matched in clearance that lock sleeve outer wall is provided with between multiple and steel lobe.
Further, the end opens of described lock sleeve has otch.So arrange, be conducive to lock sleeve to deform upon.Should be appreciated that described otch can be arranged on any one or both ends of lock sleeve.
Further, the sleeve body inwall between described steel lobe is provided with groove.So arrange, while increasing grouting space, increase the gmatjpdumamics between sleeve body inwall and grouting material, increase the overall tension of sleeve body binding site or the ability of anti-shearing force.Described groove is preferably arranged to annular, i.e. circumferentially disposed along sleeve body inner chamber.
Further, described sleeve body outer surface is provided with annular cutting.So arrange, add sleeve body and concrete contact area, increase the anchor force between grout sleeve and concrete.
Further, the two ends of described sleeve body are arranged to angle.So arranging, increase the diameter of end inner chamber, angle can also play guide effect simultaneously, is conducive to the insertion of reinforcing bar to achieve a butt joint.
For reaching above-mentioned purpose, the present invention also provides for a kind of prefabricated component, and described prefabricated component is embedded with the grout sleeve described in embedded bar and above-mentioned any one, and described embedded bar is connected with fixture.So arranging, prefabricated component is embedded with grout sleeve, is connected with the reinforcing bar that stretches out of prefabricated component to be assembled by grout sleeve, and then grouting is fixing, it is achieved the abutting joint of prefabricated component.
Accompanying drawing explanation
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.
Fig. 1 is the front section view of the grout sleeve involved by one embodiment of the present invention；
Grout sleeve middle section figure involved by the respectively one embodiment of the present invention of Fig. 2～5；
Fig. 6 and Fig. 7 is the front section view of the grout sleeve involved by another embodiment of the present invention；
Fig. 8 and Fig. 9 is the profile in the middle part of the grout sleeve involved by another embodiment of the present invention；
The end cross-sectional figure of the grout sleeve involved by the respectively another embodiment of the present invention of Figure 10 and 11；
Figure 12 is the front section view of the grout sleeve involved by another embodiment of the present invention；
Figure 13 is the structural representation of the lock sleeve involved by one embodiment of the present invention；
Figure 14 is the preform structure schematic diagram involved by one embodiment of the present invention；
Figure 15 is the prefabricated component mated condition schematic diagram involved by one embodiment of the present invention.
In figure:
1 sleeve body 2 is in the milk mouth 3 air vent 4 fixture
5 inner chamber 6 annular protrusion 8 steel lobes 9 cross slurry hole
11 steel lobe inwall 13 reinforcing bar 14 grouting materials 15 are protruding
16 groove 17 closing device 18 lock sleeve 19 jack holes
20 otch 21 step 22 prefabricated component 23 embedded bars
Detailed description of the invention
Describing the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, and protection scope of the present invention should not have any restriction effect.Additionally, the description that those skilled in the art are according to presents, it is possible to the feature in embodiment in presents and in different embodiment is carried out respective combination.
The embodiment of the present invention is as follows, see figures.1.and.2, a kind of grout sleeve, including sleeve body 1, described sleeve body 1 is provided with grouting mouth 2 and air vent 3, described sleeve body 1 both ends open, it is provided with fixture 4 in the middle part of described sleeve body 1 inner chamber 5, the inwall of described sleeve body 1 is provided with steel lobe 8, and the thickness of described steel lobe 8 is become larger to middle part by sleeve body 1 two ends, and the inwall of described steel lobe 8 is provided with and inside contracts step 21.
nullWhen grout sleeve is applied，In the manufacturing process of prefabricated component 22，Grout sleeve is embedded in prefabricated component 22 in advance，Embedded bar 2313 is connected through one end of sleeve body 1 with fixture 4，The other end of sleeve body 1 connects towards prefabricated component 22 is outer，When carrying out reinforcing bar 13 and docking，Reinforcing bar 13 stretches to sleeve body 1 inner chamber 5，Owing to steel lobe 8 is thickening gradually to middle part by end，Inside in sleeve body 1 divides and tapers into，After reinforcing bar 13 enters inner chamber 5，The termination of reinforcing bar 13 is moved to fixture 4 under the constraint of steel lobe inwall 11，Until the end of reinforcing bar 13 is connected with fixture 4，So，In the docking operation of reinforcing bar 13，Reinforcing bar 13 can be realized accurate axially control by sleeve body 1，Realize radially location，Ensure the positioning precision between reinforcing bar 13 and grout sleeve，Under preferable case，Namely multiple steel lobe 8 it is provided with，The size of steel lobe 8 and consistency of thickness，And when being symmetrical arranged，Docking reinforcing bar 13 can be made on the same line，Reasonable mechanical；Reinforcing bar 13 can being made to be positioned at the central part of inner chamber 5, so after grouting, the thickness of the grouting material 14 of reinforcing bar 13 surrounding keeps consistent, improves Grouted density, increases the grouting material 14 bond stress to reinforcing bar 13 simultaneously.It is pointed out that to reach above-mentioned technique effect, the thickness of described steel lobe 8, can not be too big near fixture 4 place, at least ensure that reinforcing bar 13 can be connected with fixture 4.
It addition, inside contract the setting of ladder 21, the grouting space at this place can be made to become big, be conducive to grouting material 14 to flow to middle part, it is ensured that grouting material fills whole inner chamber 5, improve Grouted density.Additionally, when after grouting material 14 molding, the grout blanket with inner chamber 5 and steel lobe 8 mating shapes is formed in the inner chamber 5 of sleeve body 1, grout blanket becomes big suddenly inside contracting its size of step 21 place from outside to inside, namely interior big outer little solid-state structure is formed inside contracting step 21 place, and embed mutually locking with steel lobe 8, add ability and the tensile strength of the anti-shearing force of sleeve joint portion, therefore the globality of binding site is better.
The setting of steel lobe 8 of the present invention increases sleeve body 1 integral rigidity, meets under the premise of rigidity, it is possible to suitably reduces sleeve body 1 wall thickness, saves material.Reducing wall thickness simultaneously when external diameter is identical, be effectively increased the space of grouting, add grouting material 14 so that be in the milk more closely knit, reinforcing bar 13 is higher with the adhesive property of sleeve body 1 entirety.Additionally, the slurry poured into forms the lock solid structure matched with sky in sleeve and steel lobe 8 in sleeve body 1, the anchorage reliability of reinforcing bar 13 is greatly improved.Should be appreciated that such as Fig. 2～5, described steel lobe 8 can be and sleeve body 1 one-piece casting molding, it is possible to is cutting processing molding, it is also possible to is be arranged in work progress in sleeve body 1 inner chamber 5, is flexibly connected with sleeve body 1.Certainly, steel lobe 8 arrange position with grouting mouth 2 and air vent 3 set by position not overlapping.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2～5, the inwall of described sleeve body 1 is provided with the steel lobe 8 of more than two lobes.Arranging of lobe lobe number is mainly determined according to the size of sleeve, and steel lobe 8 can adopt the lobe number such as two lobes, three lobes so that the adjustment space of sleeve body 1 is bigger.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 2, along the distance of inner chamber 5 circumference of sleeve body 1 diameter less than reinforcing bar 13 to be connected between described steel lobe 8.So arrange, it is to avoid when construction reinforced bar 13 docks, reinforcing bar 13 inserts in the seam between steel lobe 8, it is achieved not docking, strengthen difficulty of construction.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 7 and Fig. 8, described steel lobe 8 offered slurry hole 9 or led stock tank.Cross to starch hole 9 or lead arranging of stock tank and ensure there are enough flowing spaces when grouting material 14 flows to middle part on the one hand, enrich whole grout sleeve, grouting material 14 in gap between steel lobe 8 can be connected into entirety simultaneously, increase the adhesion between sleeve body 1 and grouting material 14, the globality of grouting material 14 is higher, and then is effectively increased the grouting material 14 bond stress to reinforcing bar 13.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 8, described cross slurry hole 9 or lead circumferentially disposed along sleeve of stock tank.So, by crossing slurry hole 9 or leading stock tank by the gap connection between steel lobe 8.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 6, the bottom of described sleeve body 1 end inner chamber 5 is provided with annular protrusion 6.In the process of grouting, in order to avoid grouting material 14 is first to open outer end overflow, annular protrusion 6 is set in the bottom of sleeve body 1 end inner chamber 5, so grouting material 14 is played certain barrier effect, make grouting material 14 first smoothly to sleeve body 1 internal flow, can improve Grouted density.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 9, described steel lobe 8 is in the shape of a spiral.So arrange, it is possible to increase the gmatjpdumamics between steel lobe 8 and grouting material 14, guide grouting material 14 to flow in sleeve body 1 simultaneously to a certain extent, be effectively improved Grouted density.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 10 and 11, described steel lobe 8 is provided with groove 16 or protruding 15.Steel lobe 8 arranges the groove 16 or protruding 15 of certain depth, the contact area between steel lobe 8 and grouting material 14 can be increased, to increase the gmatjpdumamics between itself and grouting material 14 so that between reinforcing bar 13 and sleeve body 1, power transmission is more uniform.Should be appreciated that described groove 16 or protruding 15 can be arranged on sidewall and/or the inwall of steel lobe 8, described groove 16 or protruding 15 can be horizontal, vertical or annular is arranged.If offering groove, the middle part of steel lobe 8 sidewall or sidewall can be provided near one end of sleeve body 1 wall, especially groove is opened in steel lobe 8 sidewall near one end of sleeve body 1 wall, the grouting space of grouting material 14 can be increased, and increase the contact area of steel lobe 8, sleeve lining and grouting material 14 simultaneously.
On the basis of above-described embodiment, in another embodiment of the present invention, described steel lobe inwall 11 is by the inside corrugated extension in end.On the one hand, taper into fixture owing to the inside of sleeve body 1 divides, it is unfavorable for that grouting material 14 flows to middle part, steel lobe 8 adopts undulatory inwall to ensure, and grouting material 14 has enough flowing spaces and the effect of water conservancy diversion grouting material 14, Grouted density can be effectively improved, on the other hand, the concavity and convexity of steel lobe inwall 11 can be effectively increased, and then increase the gmatjpdumamics between grouting material 14 and steel lobe 8, improve the anchoring strength of reinforcing bar 13.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 1, described fixture 4 is threaded mouth or fixing bolt.So, it is ensured that the connection of sleeve both sides reinforcing bar 13 and fixing.
On the basis of above-described embodiment, in another embodiment of the present invention, described sleeve body 1 outer surface is matsurface.When grout sleeve is as built-in fitting, sleeve body 1 outer surface adopts rough surface, adds the anchor force between grout sleeve and concrete.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 12, the end of described sleeve body 1 is provided with closing device 17, and described closing device 17 is provided with jack hole 19.So arrange, it is to avoid grouting material 14 before condensing hardening from sleeve body 1 end spilling.During use, first by reinforcing bar 13 through the jack hole 19 on closing device 17, seal after completing the docking of reinforcing bar 13, then carry out grouting operation.
On the basis of above-described embodiment, in another embodiment of the present invention, described closing device 17 is elastic seal ring.
On the basis of above-described embodiment, in another embodiment of the present invention, described closing device 17 adopts screw thread or shackle member to be connected with sleeve body 1.So, closing device 17 is formed with sleeve body 1 and is reliably connected, and can avoid in filling process, and the phenomenon backing down closing device 17 due to impulsive force and the gravity of itself of grouting material 14 occurs.
On the basis of above-described embodiment, in another embodiment of the present invention, the two side of described closing device 17 is provided with anchoring projection.So arranging, closing device 17 can form certain anchor force with the grouting material 14 of its both sides and in-situ layer, indirectly strengthens the sleeve body 1 connection with the two.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 12 and 13, described closing device 17 is lock sleeve 18, and inner chamber 5 interference fit of described lock sleeve 18 and described sleeve body 1 end, described lock sleeve 18 is prepared for mild steel or spring steel.So arrange, after completing the docking of reinforcing bar 13, during sealing, lock sleeve 18 is pushed away inward, is tapered into middle part by end owing to the inside of sleeve body 1 divides, cause that elastic deformation occurs lock sleeve 18, and then reinforcing bar 13 is pinned tightly, reinforcing bar 13 can be made not swing in filling process.It should be noted that when lock sleeve 18 adopts loop configuration, inner chamber 5 end of sleeve body 1 is not provided with steel lobe 8, certainly, when inner chamber 5 end of sleeve body 1 arranges steel lobe 8, the projection of the matched in clearance that lock sleeve 18 outer wall is provided with between multiple and steel lobe 8.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Figure 13, the end opens of described lock sleeve 18 has otch 20.So arrange, be conducive to lock sleeve 18 to deform upon.Should be appreciated that described otch 20 can be arranged on any one or both ends of lock sleeve 18.
On the basis of above-described embodiment, in another embodiment of the present invention, sleeve body 1 inwall between described steel lobe 8 is provided with groove.So arrange, while increasing grouting space, increase the gmatjpdumamics between sleeve body 1 inwall and grouting material 14, increase the overall tension of sleeve body 1 binding site or the ability of anti-shearing force.Described groove is preferably arranged to annular, i.e. circumferentially disposed along the inner chamber 5 of sleeve body 1.
On the basis of above-described embodiment, in another embodiment of the present invention, described sleeve body 1 outer surface is provided with annular cutting.So arrange, add sleeve body 1 and the concrete contact area of prefabricated component 22, increase the anchor force between grout sleeve and concrete.
On the basis of above-described embodiment, in another embodiment of the present invention, the two ends 4 of described sleeve body 1 are arranged to angle.So arranging, increase the diameter of end inner chamber 5, angle can also play guide effect simultaneously, is conducive to the insertion of reinforcing bar 13 to achieve a butt joint.
The present invention also provides for a kind of prefabricated component 22, and embodiment is as follows, and with reference to Figure 14 and 15, described prefabricated component 22 is embedded with the grout sleeve described in embedded bar 23 and above-mentioned any one, and described embedded bar 23 is connected with fixture 4.So arranging, prefabricated component 22 is embedded with grout sleeve, is connected by the reinforcing bar that stretches out of grout sleeve with prefabricated component 22 to be assembled, and then grouting is fixing, it is achieved the abutting joint of prefabricated component 22.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a grout sleeve, including sleeve body, described sleeve body is provided with grouting mouth and air vent, it is characterized in that, described sleeve body both ends open, is provided with fixture in the middle part of described sleeve body inner chamber, the inwall of described sleeve body is provided with steel lobe, the thickness of described steel lobe is become larger to middle part by sleeve body two ends, and the inwall of described steel lobe is provided with and inside contracts step.
2. grout sleeve according to claim 1, it is characterised in that the inwall of described sleeve body is provided with the steel lobe of more than two lobes.
3. grout sleeve according to claim 2, it is characterised in that along the distance of the inner chamber circumference of sleeve body less than the diameter of reinforcing bar to be connected between described steel lobe.
4. grout sleeve according to claim 3, it is characterised in that offered slurry hole on described steel lobe or led stock tank.
5. grout sleeve according to claim 4, it is characterised in that described cross slurry hole or lead circumferentially disposed along sleeve of stock tank.
6. the grout sleeve according to Claims 1 to 5 any one, it is characterised in that described steel lobe is extended by the inward at both ends of sleeve body, forms annular cavity in the middle part of described sleeve body, described fixture is arranged in annular cavity.
7. the grout sleeve according to Claims 1 to 5 any one, it is characterised in that the inwall fixture both sides of described steel lobe are provided with flex point, and the thickness of described steel lobe is become larger to flex point by sleeve body two ends, flex point taper into fixture.
8. the grout sleeve according to Claims 1 to 5 any one, it is characterised in that described steel lobe is in the shape of a spiral.
9. the grout sleeve according to Claims 1 to 5 any one, it is characterised in that described steel lobe is provided with groove or projection；Or described steel lobe inwall is by the inside corrugated extension in end；Or described fixture is threaded mouth or fixing bolt；Or described sleeve body outer surface is matsurface；Or the end of described sleeve body is provided with closing device, described closing device is provided with jack hole；Or described closing device adopts screw thread or shackle member to be connected with sleeve body；Or the two side of described closing device is provided with anchoring projection；Or described closing device is lock sleeve, the inner chamber interference fit of described lock sleeve and described sleeve body end, described lock sleeve is mild steel or prepared by spring steel；Or the end opens of described lock sleeve has otch；Or the sleeve body inwall between described steel lobe is provided with groove.
10. a prefabricated component, it is characterised in that described prefabricated component is embedded with the grout sleeve described in embedded bar and claim 1～9 any one, and described embedded bar is connected with fixture.
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| CN201610267842.2A CN105781027A (en) | 2016-04-26 | 2016-04-26 | Grouting sleeve and prefabricated member |
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| CN201610267842.2A CN105781027A (en) | 2016-04-26 | 2016-04-26 | Grouting sleeve and prefabricated member |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661244A (en) * | 2018-08-01 | 2018-10-16 | 阳光学院 | A kind of reinforced bar sleeve connector |
| CN108723266A (en) * | 2018-06-29 | 2018-11-02 | 中民筑友有限公司 | A kind of processing of spiral and sleeve install equipment |
| CN113123532A (en) * | 2021-05-13 | 2021-07-16 | 河南天亿建设工程有限公司 | Cement-based grouting material self-adaptation intelligent connecting sleeve |
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