CN105756290A - Grouting sleeve and pre-fabricated part - Google Patents
Grouting sleeve and pre-fabricated part Download PDFInfo
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- CN105756290A CN105756290A CN201610265821.7A CN201610265821A CN105756290A CN 105756290 A CN105756290 A CN 105756290A CN 201610265821 A CN201610265821 A CN 201610265821A CN 105756290 A CN105756290 A CN 105756290A
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- sleeve
- sleeve body
- steel
- steel lobe
- grout
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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
- E04C5/18—Spacers of metal or substantially of metal
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Abstract
The invention belongs to the field of constructional engineering and particularly discloses a grouting sleeve and a pre-fabricated part.The grouting sleeve comprises a sleeve body, wherein a grouting opening and an exhaust port are formed in the sleeve body, one end of the sleeve body is open, the other end of the sleeve body serves as a connecting end, steel petals are arranged on the inner wall of the sleeve body, the thickness of the steel petals is gradually increased from the open end to the inside, and the width of the end, close to the connecting end, of each steel petal is greater than that of the end, close to the connecting end, of each steel petal.The arranged steel petals improve the overall rigidity of the sleeve body, the wall thickness of the sleeve body can be appropriately decreased on the premise that the rigidity is met, and materials are saved.In addition, grouted slurry form a locking-fixing structure matched with the sleeve inside and the steel pedals in the sleeve body, and the anchoring reliability of steel bars is remarkably improved.The accurate axial control and radial positioning of the steel bars can be achieved, and the positioning precision between the steel bars and the grouting sleeve can be ensured.
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, the one end open of described sleeve body, the other end is link, the thickness of described steel lobe is inwardly become larger by opening, and the described steel lobe width near one end of link is more than the width of the one end near opening.nullSo arrange，During grout sleeve application，In the manufacturing process of prefabricated component，Grout sleeve is embedded in prefabricated component in advance，The link of sleeve body is connected with embedded bar，The opening of sleeve body connects outside prefabricated component，When carrying out steel reinforcement abutting joints，Reinforcing bar stretches to sleeve body inner chamber from the opening of sleeve body，Owing to steel lobe is thickening gradually to link by opening，Distance between steel lobe tapers into，After reinforcing bar enters inner chamber，Steel bar end moves to link under the constraint of steel lobe inwall，Until the end of reinforcing bar is connected with link，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 in air vent section can not be too big, at least ensure that reinforcing bar can pass air vent Duan Houyu link and be connected.It will be appreciated by those skilled in the art that air vent section described herein refers to the length of interval that air vent upwards takies in sleeve body lumen shaft.
Additionally, owing to the described steel lobe width near one end of link is more than the width of the one end near opening, therefore near the gap of link more than its gap near opening between described steel lobe, to ensure that grouting material has enough flowing spaces to when connecting endwall flow, ensure 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, in inner chamber circumference, grout blanket is near the size being sized larger than sleeve body opening of link, add ability and the tensile strength of the anti-shearing force of sleeve joint portion, therefore the globality of binding site is better.
It should be noted that the thickness of described steel lobe refers to the size that steel lobe radially extends along the inner chamber of sleeve body, the width of described steel lobe refers to steel lobe along the circumferentially extending size of sleeve；The width of described steel lobe can be gradual change by opening to the change of link, it can also be sudden change, namely can be by opening tapering into link, can also be provided with at least one flex point at the middle part of steel lobe, flex point place is stepped, and the width of described steel lobe be may also be the trend of gradual change by the change of flex point to two ends.
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.Additionally, the slurry poured into forms the lock solid structure matched with sky in sleeve and steel lobe in sleeve body, the anchorage reliability of reinforcing bar is greatly improved.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, the bottom of described sleeve body opening inner chamber is provided with annular protrusion.In the process of grouting, grouting material easily first to open outer end overflow, arranges annular protrusion in the bottom of sleeve body opening inner chamber, grouting material so plays certain barrier effect, make grouting material first smoothly to sleeve body internal flow, can improve Grouted density.
Further, described link is provided with 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 opening 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 opening 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 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 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, 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 opening, 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 link by opening 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 lumen openings end of sleeve body is not provided with steel lobe, certainly, when the lumen openings end 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, 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 link 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, described steel lobe inwall is by the inside corrugated extension of opening.Steel lobe adopts undulatory inwall, on the one hand, taper into link owing to the inside of sleeve body divides, it is unfavorable for that grouting material flows to link, and steel lobe is arranged to undulatory inwall and can ensure that grouting material has enough flowing spaces and the effect of water conservancy diversion grouting material, can be effectively improved Grouted density, 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.It should be noted that under this condition, steel lobe is referred on overall trend thickening gradually by opening to link is 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 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.Preferably scheme is to be opened in the sidewall of steel lobe.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, 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 opening of described sleeve body is arranged to angle.So arranging, increase the diameter of opening 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 the link of grout sleeve.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.
The front section view of the grout sleeve involved by Fig. 1 and Fig. 2 respectively one embodiment of the present invention；
Fig. 3 is the structural representation of steel lobe involved in Fig. 1；
Fig. 4 is the structural representation of steel lobe involved in Fig. 2；
The opening profile of the grout sleeve involved by Fig. 5 respectively one embodiment of the present invention；
Profile on the right side of the link of the grout sleeve involved by the respectively one embodiment of the present invention of Fig. 6～9；
Figure 10 and Figure 11 is the front section view of the grout sleeve involved by another embodiment of the present invention；
Profile on the right side of the link of Figure 12 and 13 grout sleeve involved by another embodiment of the present invention；
The front section view of the grout sleeve involved by Figure 14 and Figure 15 respectively another embodiment of the present invention；
Figure 16 is the structural representation of the lock sleeve involved by one embodiment of the present invention；
Figure 17 is the preform structure schematic diagram involved by one embodiment of the present invention；
Figure 18 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 opening
5 link 6 annular protrusion 8 steel lobes 9 cross slurry hole
10 inner chamber 11 steel lobe inwall 13 reinforcing bar 14 grouting materials
15 protruding 16 groove 17 closing device 18 lock sleeves
19 jack hole 20 otch 21 prefabricated component 22 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, with reference to Fig. 1～6, a kind of grout sleeve, including sleeve body 1, described sleeve body 1 is provided with grouting mouth 2 and air vent 3, the one end open of described sleeve body 1, the other end is link 5, the inwall of described sleeve body 1 is provided with steel lobe 8, and the thickness of described steel lobe 8 is inwardly become larger by opening 4, and the described steel lobe 8 width near one end of link 5 is more than the width of the one end near opening 4.nullSo arrange，During grout sleeve application，In the manufacturing process of prefabricated component 21，Grout sleeve is embedded in prefabricated component 21 in advance，The link 5 of sleeve body 1 is connected with embedded bar 22，The opening 4 of sleeve body 1 connects towards prefabricated component 21 is outer，When carrying out reinforcing bar 13 and docking，Reinforcing bar 13 stretches to sleeve body 1 inner chamber 10 from the opening 4 of sleeve body 1，Owing to steel lobe 8 is thickening gradually to link 5 by opening 4，Distance between steel lobe 8 tapers into，After reinforcing bar 13 enters inner chamber 10，Reinforcing bar 13 termination is moved to link 5 under the constraint of steel lobe inwall 11，Until the end of reinforcing bar 13 is connected with link 5，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 10, 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 air vent 3 sections can not be too big, at least ensure that reinforcing bar 13 can be connected with link 5 after passing air vent 3 sections.It will be appreciated by those skilled in the art that air vent described herein 3 sections refers to the length of interval that air vent 3 axially takies at sleeve body 1 inner chamber 10.
Additionally, as illustrated in Figures 5 and 6, owing to the steel lobe 8 width near one end of link 5 is more than the width of the one end near opening 4, therefore near the gap of link 5 more than its gap near opening 4 between steel lobe 8, can ensure there are enough flowing spaces when grouting material 14 flows to link 5, ensure that grouting material 14 fills whole inner chamber 10, improve Grouted density.Additionally, when after grouting material 14 molding, the grout blanket with inner chamber 10 and steel lobe 8 mating shapes is formed in the inner chamber 10 of sleeve body 1, in inner chamber 10 circumference, grout blanket is in the size being sized larger than sleeve body 1 opening 4 near link 5, add ability and the tensile strength of the anti-shearing force of joint portion in sleeve, therefore the globality of binding site is better.
It should be noted that as shown in Figure 5 and Figure 6, the thickness of described steel lobe 8 refers to the size that steel lobe 8 radially extends along the inner chamber of sleeve body 1, and the width of described steel lobe 8 refers to steel lobe 8 along the circumferentially extending size of the inner chamber of sleeve body 1；The width of described steel lobe 8 can be gradual change by opening 4 to the change of link 5, it can also be sudden change, namely as shown in figures 1 and 3, can be by opening 4 tapering into link 5, also can be as shown in Figure 2 and Figure 4, be provided with at least one flex point at the middle part of steel lobe 8, flex point place is stepped, and the width of described steel lobe 8 be may also be the trend of gradual change by the change of flex point to two ends.
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, 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.Preferred steel lobe 8 setting direction is consistent with inner chamber 10 axial direction.Should be appreciated that such as Fig. 6～9, 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 10, is flexibly connected with sleeve body 1.Certainly, steel lobe 8 arrange position with grouting mouth 2 and steam vent set by position not overlapping.
On the basis of above-described embodiment, in another embodiment of the present invention, such as Fig. 6～9, the inwall of described sleeve body 1 is provided with the steel lobe 8 of more than two lobes.Arranging of steel lobe 8 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. 6, along the distance of inner chamber 10 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 Figure 10, the bottom of described sleeve body 1 opening 4 inner chamber 10 is provided with annular protrusion 6.In the process of grouting, in order to avoid grouting material 14 first to open outer end overflow, in the bottom of sleeve body 1 opening 4 inner chamber 10, annular protrusion 6 is set, 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. 1, described link 5 is provided with 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 15, the opening 4 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 overflows from sleeve body 1 opening 4 before condensing hardening.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 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 15 and 16, described closing device 17 is lock sleeve 18, and inner chamber 10 interference fit of described lock sleeve 18 and described sleeve body 1 opening 4, 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, taper into link 5 by opening 4 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 10 opening 4 of sleeve body 1 is not provided with steel lobe 8, certainly, when inner chamber 10 opening 4 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 16, 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, such as Figure 11 and Figure 12, 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 link 5 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 Figure 13, 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, 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.Described groove 16 or protruding 15 can be arranged on sidewall and/or the inwall of steel lobe 8, and described groove 16 or protruding 15 can be horizontal, vertical or annular is arranged.Preferably it is opened in sidewall, so without influence on the docking of reinforcing bar 13.It is to be understood that, described groove 16 or protruding 15 can be arranged on sidewall and/or the inwall of steel lobe 8, if offering groove 16, 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, such as Figure 14, described steel lobe inwall 11 is by the inside corrugated extension of opening 4.Steel lobe 8 adopts undulatory inwall, on the one hand, taper into link 5 owing to the inside of sleeve body 1 divides, it is unfavorable for that grouting material 14 flows to link 5, and undulatory inwall can ensure that grouting material 14 has enough flowing spaces and the effect of water conservancy diversion grouting material 14, can be effectively improved Grouted density, 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, 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 10 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 21, increase the anchor force between grout sleeve and concrete.
On the basis of above-described embodiment, in another embodiment of the present invention, the opening 4 of described sleeve body 1 is arranged to angle.So arranging, increase the diameter of opening 4 place inner chamber 10, 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 21, and embodiment is as follows, and with reference to Figure 17 and 18, described prefabricated component 21 is embedded with the grout sleeve described in embedded bar 22 and above-mentioned any one, and described embedded bar 22 is connected with the link 5 of grout sleeve.So arranging, prefabricated component 21 is embedded with grout sleeve, is connected by the reinforcing bar that stretches out of grout sleeve with prefabricated component 21 to be assembled, and then grouting is fixing, it is achieved the abutting joint of prefabricated component 21.
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, the one end open of described sleeve body, the other end is link, and the inwall of described sleeve body is provided with steel lobe, the thickness of described steel lobe is inwardly become larger by opening, and the described steel lobe width near one end of link is more than the width of the one end near opening.
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 1, it is characterised in that the bottom of described sleeve body opening inner chamber is provided with annular protrusion.
5. grout sleeve according to claim 1, it is characterised in that described link is provided with threaded mouth or fixing bolt.
6. grout sleeve according to claim 1, it is characterised in that described sleeve body outer surface is matsurface.
7. the grout sleeve according to claim 1～6 any one, it is characterised in that the opening of described sleeve body is provided with closing device, and described closing device is provided with jack hole.
8. grout sleeve according to claim 7, it is characterised in that described closing device adopts screw thread or shackle member to be connected with sleeve body.
9. grout sleeve according to claim 8, it is characterised in that 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 opening, 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；Or described steel lobe was offered slurry hole or led stock tank；Or described cross slurry hole or lead circumferentially disposed along sleeve of stock tank；Or described steel lobe is in the shape of a spiral.
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 the link of grout sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610265821.7A CN105756290A (en) | 2016-04-26 | 2016-04-26 | Grouting sleeve and pre-fabricated part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610265821.7A CN105756290A (en) | 2016-04-26 | 2016-04-26 | Grouting sleeve and pre-fabricated part |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366389A (en) * | 2017-07-05 | 2017-11-21 | 武汉理工大学 | A kind of steel pipe sleeve for being used for precast shear wall, post and preparation method thereof |
| CN107884516A (en) * | 2017-11-29 | 2018-04-06 | 中国建筑科学研究院 | Prefabricated concrete structure grout sleeve node checks and accepts device and its application method |
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| JP2002081170A (en) * | 2000-09-08 | 2002-03-22 | Totaku Industries Inc | Pc cable protection sheath |
| CN101117838A (en) * | 2007-07-04 | 2008-02-06 | 湖南大学 | Bond type anchorage and anchoring method for anchoring fibre reinforced plastic reinforcement or bracing cable |
| CN204919998U (en) * | 2015-05-06 | 2015-12-30 | 王会民 | Half grout sleeve subassembly of nodular cast iron for steel bar connection |
| CN205917995U (en) * | 2016-04-26 | 2017-02-01 | 中民筑友科技投资有限公司 | Grout sleeve and prefab |
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| JP2002081170A (en) * | 2000-09-08 | 2002-03-22 | Totaku Industries Inc | Pc cable protection sheath |
| CN101117838A (en) * | 2007-07-04 | 2008-02-06 | 湖南大学 | Bond type anchorage and anchoring method for anchoring fibre reinforced plastic reinforcement or bracing cable |
| CN204919998U (en) * | 2015-05-06 | 2015-12-30 | 王会民 | Half grout sleeve subassembly of nodular cast iron for steel bar connection |
| CN205917995U (en) * | 2016-04-26 | 2017-02-01 | 中民筑友科技投资有限公司 | Grout sleeve and prefab |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366389A (en) * | 2017-07-05 | 2017-11-21 | 武汉理工大学 | A kind of steel pipe sleeve for being used for precast shear wall, post and preparation method thereof |
| CN107884516A (en) * | 2017-11-29 | 2018-04-06 | 中国建筑科学研究院 | Prefabricated concrete structure grout sleeve node checks and accepts device and its application method |
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