CN205617661U - Short sleeve grout steel bar connection connects and connecting sleeve and pressure -bearing ring that have thereof - Google Patents

Short sleeve grout steel bar connection connects and connecting sleeve and pressure -bearing ring that have thereof Download PDF

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Publication number
CN205617661U
CN205617661U CN201521138293.6U CN201521138293U CN205617661U CN 205617661 U CN205617661 U CN 205617661U CN 201521138293 U CN201521138293 U CN 201521138293U CN 205617661 U CN205617661 U CN 205617661U
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CN
China
Prior art keywords
bearing ring
grouting
reinforcing bar
ribbing
sleeve
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CN201521138293.6U
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Chinese (zh)
Inventor
钱冠龙
朱清华
王爱军
郝志强
刘兴亚
郝敏
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中冶建筑研究总院有限公司
北京思达建茂科技发展有限公司
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Priority to CN201521138293.6U priority Critical patent/CN205617661U/en
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Publication of CN205617661U publication Critical patent/CN205617661U/en

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Abstract

The utility model relates to a short sleeve grout steel bar connection connects and connecting sleeve and pressure -bearing ring that have thereof, including connecting reinforcement with ribbing, connecting sleeve, cement base grout material and pressure -bearing ring, between the connecting reinforcement end with ribbing cross rib in connecting, set up the semi -circular pressure -bearing ring that the cross -section has the wedge structure, connecting sleeve grout is connected chamber tip aperture and is lighter than grout and connects intracavity chamber diameter, and the undergauge hole of this wedge pressure -bearing ring sum sleeve tip is showing the anchoring effect who has improved connecting reinforcement with ribbing in the butt joint of cement base grout material when the reinforcing bar is drawn, not only effectively shortened joint length, is keeping connecting the initial state of outside reinforcing bar in addition, and it is simple, quick, with low costs to construct, the utility model is used for during the connection of anti -corrosion reinforcing bar and stainless steel reinforcing bar, can guarantee to connect and have the corrosion resisting property who is equal with the reinforcing bar, can guarantee also that mechanical properties satisfies both at home and abroad the requirement of relevant standard to steel sleeve grout attach fitting.

Description

Short sleeve grouting reinforcement connecting joint and the branch sleeve being had thereof and bearing ring
Technical field
This utility model relates to technical field of building construction, particularly to a kind of short sleeve reinforcing bar grouting jointing and the branch sleeve being had and bearing ring.
Background technology
Along with the development of Chinese national economy, the construction that marine resources development utilizes constantly expands.The ocean engineering infrastructure such as the substantial amounts of harbour of Development of Marine economic needs, bridge spanning the sea, islands and reefs construction, for solving sea water to the etching problem of xoncrete structure in relevant building, stainless steel rebar, anti-corrosion reinforcing bar all will be widely used, and the connection of the Large-size rebar in these structures is as used overlap joint to connect, material consumption is excessive, high cost;It is welded to connect and is difficult to ensure corrosion resisting property and switching performance simultaneously;In mechanical joining methods, straight screw connection to carry out machining to reinforcing bar, brings adverse effect also can to joint mechanical performance or corrosion resisting property;Extrusion socket joint needs special production with parent material of reinforcement rebar corrosion resisting property quite, meets again the connecting material of crimp performance, and difficulty is big, cost is high;It is a kind of effective ways that can solve the problems referred to above that sleeve grouting connects.
It is a kind of construction technology being applied to prefabricated concrete structure that reinforced bar sleeve grouting connects, it is that connected Ribbed Bar is inserted a metal branch sleeve, again non-shrinking cement-based grouting material is poured into branch sleeve, it is full of the gap of sleeve and reinforcing bar, after cement-based grouting material hardens, reinforcing bar is i.e. anchored in branch sleeve securely, it is achieved the connection of two Ribbed Bar.After first sleeve grouting jointing patent of nineteen sixty-eight U.S.'s appearance in decades, precast concrete application is more and more extensive, the most novel grouting joint constantly occurs, but, all there is its respective deficiency in existing various sleeves grouting joint: though traditional sleeve grouting joint Joining Technology is simple, but grouting material anchorage length is longer, sleeve and the high material consumption of grouting material, as being applied to stainless steel rebar or anti-corrosion bar connecting, joint cost is the highest;A kind of " end reinforced overstriking grouting joint " shortens length sleeve, however it is necessary that special equipment carries out jumping-up processing to reinforcing bar, the clamping mould adding jumping-up equipment in man-hour may affect bar connecting intensity to the damage on high tensile reinforcement surface, and use the anchorage head of welding to need continuous border welding on reinforcing bar, thermal weld stress amount is the biggest, by affecting stainless steel rebar or the metal structure of anti-corrosion reinforcing bar, change its corrosion resisting property.Therefore, existing sleeve grouting interconnection technique is difficult to directly apply to the connection of anti-corrosion reinforcing bar, stainless steel rebar, anti-corrosion reinforcing bar, the reinforcing bar damage to be avoided of stainless steel rebar affect mechanical performance, the problem of thermal weld stress amount to be avoided big change reinforcing bar corrosion resisting property, needs a kind of new reinforcing steel bar jointing to meet related needs.
Utility model content
For solving the problems referred to above, the purpose of this utility model is: provide a kind of short sleeve reinforcing bar grouting jointing and the branch sleeve being had thereof and bearing ring, by branch sleeve, strength cement-based grouting material, two ends Ribbed Bar is linked together, bearing ring is installed on the connection reinforcing bar of joint, the cement grout material anchor force to reinforcing bar is improved by bearing ring, effectively shortening joint length, reduces link cost, it is achieved joint has the mechanics being equal to and corrosion resisting property with parent material of reinforcement rebar.
For achieving the above object, this utility model be the technical scheme is that
A kind of short sleeve grouting reinforcement connecting joint, including connection reinforcing bar with ribbing, branch sleeve, strength cement-based grouting material, bearing ring;It is provided with grouting in described branch sleeve and connects chamber, the sidewall of described branch sleeve is provided with the slurry hole excessively that grouting connects intracavity UNICOM outward, described grouting connects strength cement-based grouting material described in intra-bladder instillation, after the solidification of described strength cement-based grouting material with described branch sleeve, with ribbing be connected reinforcing bar, bearing ring is combined together to form a splice
The bearing ring of at least one pair of plane or screw type it is provided with between the termination cross rib of the connection reinforcing bar with ribbing of described short sleeve grouting reinforcement connecting joint, the projection in the plane being perpendicular to described connection reinforcing bar axis with ribbing of the described bearing ring is two semicircular ring, the length of described semicircular ring and thickness are respectively greater than length and the height that the cross rib of described connection reinforcing bar with ribbing projects at grade, described bearing ring uses in pairs, it is attached separately on the two sides that described connection reinforcing bar with ribbing is separated by longitudinal rib, with the two panels of a pair bearing ring along the distance of the axis relative misalignment of described connection reinforcing bar with ribbing less than a rib spacing of described connection reinforcing bar with ribbing;
The pars intermedia of the inner ring of the bearing ring of described short sleeve grouting reinforcement connecting joint is attached on the basic circle of described connection reinforcing bar with ribbing, and the two ends of the inner ring of described bearing ring are attached on the basic circle of described connection reinforcing bar with ribbing or across on the cross rib of adjacent connection reinforcing bar described with ribbing;
It is wedge configuration that the bearing ring of described short sleeve grouting reinforcement connecting joint has one end along the cross section of its axis vertical profile, the wedge configuration in described cross section is made up of with the straight line on the outer ring of described bearing ring or curve the straight line on the inner ring of described bearing ring, and straight line or the angle of the axis of curve near tangent and described bearing ring on described cross section are 15 °-60 °;
Before the connection reinforcing bar with ribbing of described short sleeve grouting reinforcement connecting joint inserts described branch sleeve, described bearing ring is fixed on described connection reinforcing bar with ribbing by local welding, the tip of described bearing ring wedge configuration is located remotely from the position of described connection steel bar end with ribbing, and the wedge configuration stub end of described bearing ring is located close to the position of described connection steel bar end with ribbing;
The grouting of the branch sleeve of described short sleeve grouting reinforcement connecting joint connects port, the chamber internal diameter size big 0mm-3mm of diameter than the maximum circumscribed circle cylinder of the bearing ring outer rim on the connection reinforcing bar described with ribbing inserted, and the grouting of described branch sleeve connects intracavity internal diameter everywhere and connects big more than the 5mm of internal diameter size of port, chamber than grouting.
Described short sleeve grouting reinforcement connecting joint, the metal material that described bearing ring is not less than 540MPa by tensile strength is made.
Described short sleeve grouting reinforcement connecting joint, described branch sleeve includes cylinder and end cap, described end cap (14) by the external screw thread set by one end with at the endoporus of described cylinder set by female thread be connected.
Described short sleeve grouting reinforcement connecting joint, described branch sleeve is made up of corrosion-resisting steel or stainless steel material.
Described short sleeve grouting reinforcement connecting joint, described bearing ring is made up of corrosion-resisting steel or stainless steel material.
Described short sleeve grouting reinforcement connecting joint, is provided with sealing member at the aperture, end, grouting chamber of described branch sleeve.
Described short sleeve grouting reinforcement connecting joint, is provided with position-limitting pin or screw in the middle part of described branch sleeve.
The branch sleeve of described short sleeve grouting reinforcement connecting joint, it is provided with the grouting for filling concrete base grouting material in described branch sleeve and connects chamber, the sidewall of described branch sleeve is provided with the slurry hole excessively that grouting connects intracavity UNICOM outward, the grouting of described branch sleeve connects the big 0mm-3mm of diameter of the maximum circumscribed circle cylinder of the bearing ring outer rim on the connection reinforcing bar described with ribbing that port, chamber internal diameter size is inserted than this end, and the grouting of described branch sleeve connects the intracavity internal diameter everywhere big more than the 5mm of internal diameter size than grouting connection port, chamber.
The bearing ring of described short sleeve grouting reinforcement connecting joint, it is wedge configuration that described bearing ring has one end along the cross section of its axis vertical profile, the wedge configuration in described cross section is made up of with the straight line on the outer ring of described bearing ring or curve the straight line on the inner ring of described bearing ring, and straight line or the angle of the axis of curve near tangent and described bearing ring on described cross section are 15 °-60 °.
Compared with prior art, the utility model has the advantage of of technique scheme is used:
1) setting the bearing ring of wedge structure on the joint of the present utility model reinforcing bar in grout sleeve, in the cement grout material that bearing ring is mounted in sleeve, the bearing capacity of the strength cement-based grouting material being wrapped in connection reinforcing bar with ribbing in making joint is improved;2) diameter of bore of branch sleeve end of the present utility model is closely sized to the maximum outside diameter being connected reinforcing bar with ribbing equipped with bearing ring, and the grouting of branch sleeve connects intracavity internal diameter everywhere and connects big more than the 5mm of internal diameter size of port, chamber than grouting, i.e. it is provided with undergauge hole at sleeve ends, grouting connects in chamber by the strength cement-based grouting material connecting intracavity that is in the milk being served supporting role on the inwall also axial direction of branch sleeve end, makes strength cement-based grouting material improve the anchoring effect of reinforcing bar.When reinforcing bar tension, branch sleeve of the present utility model is more permanent than the anchorage effect of conventional grout sleeve keeps, and improves the bearing capacity of joint;3), bearing ring of the present utility model is located near the steel bar end of branch sleeve grouting connection depths, chamber, reduce bearing ring to be affected by extraneous corrosive medium, therefore using at branch sleeve material and be connected reinforcing bar is that under same corrosion resistance or more preferable corrosion proof material context, the corrosion resisting property of joint of the present utility model can reach and is equal to the highest with parent material of reinforcement rebar body;4), bearing ring local welding of the present utility model is connected on reinforcing bar, it is not necessary to large volume, high power welding equipment, and construction efficiency is high, and therefore this utility model compares existing sleeve grouting jointing, and joint link cost significantly reduces.
This utility model is by above advantage, overcome prior art and connect anti-corrosion reinforcing bar or the deficiency of stainless steel rebar, joint length significantly shortens than conventional sleeve grouting reinforcement connecting joint, and maintain the initial condition of the outer connection reinforcing bar with ribbing of joint, ensure that joint to have with reinforcing bar and be equal to even preferably corrosion resisting property, mechanical property can meet the requirement to reinforced bar sleeve grouting jointing of the domestic and international relevant criterion, connects quick, simple to operate, easy construction, link cost low.Joint of the present utility model is possible not only to apply in the anti-corrosion reinforcing bar or stainless steel rebar connection of cast-in-place structural building field, also can connect and prefabricated concrete structure axis deviation is little, the application of reinforcing bar the most revolvable docking bar connecting position at the regular reinforcement of normal concrete construction applications, there is good technical economic benefit and popularizing application prospect.
The structure of branch sleeve of the present utility model and bearing ring, in application with joint of the present utility model, demonstrates exclusive advantage, the most also has good using value and promotion prospect.
Accompanying drawing explanation
Fig. 1 a is a kind of short sleeve grouting reinforcement connecting joint structural representation of the present utility model;
Fig. 1 b is the end reinforced direction view of connection with ribbing that Fig. 1 a is provided with bearing ring;
Fig. 1 c is structural representation and the sectional view thereof of screw type bearing ring;
Fig. 1 d is structural representation and the sectional view thereof of plane bearing ring;
Fig. 2 is first embodiment of the present utility model;
Fig. 3 is the second embodiment of the present utility model;
Fig. 4 is the 3rd embodiment of the present utility model.
Description of reference numerals: 1-connection with ribbing reinforcing bar;2-strength cement-based grouting material;3-branch sleeve;4-bearing ring;5-grouting connects chamber;6-crosses slurry hole;7-grouting connects chamber port;8-longitudinal rib;9-basic circle;10-cross rib;The outer ring straight line of 11-wedge configuration or curve;12-wedge configuration;Straight line on 13-wedge configuration inner ring;14-blind nut;15-cylinder;16-sealing member;17-position-limitting pin or screw.
Detailed description of the invention
Further describe this utility model below in conjunction with specific embodiments and the drawings, advantage of the present utility model and feature will be with describe and apparent.
nullFig. 1 a show a kind of short sleeve grouting reinforcement connecting joint and branch sleeve 3 thereof and the structural representation of bearing ring 4,If Fig. 1 b is the end reinforced axial view of connection with ribbing being provided with bearing ring 4 of Fig. 1 a,It can be seen that bearing ring 4 is the semicircular ring of a pair,The girth of described semicircular ring and thickness are respectively greater than girth and the height that the cross rib 10 of described connection reinforcing bar 1 with ribbing projects at grade,Described bearing ring 4 uses in pairs,It is attached separately on the two sides that described connection reinforcing bar 1 with ribbing is separated by longitudinal rib 8,With the two panels of a pair bearing ring 4 along the distance of the axis relative misalignment of described connection reinforcing bar 1 with ribbing less than 1 rib spacing of described connection reinforcing bar 1 with ribbing,Described bearing ring 4 inner ring pars intermedia is attached on the basic circle 9 of described connection reinforcing bar 1 with ribbing,Described bearing ring 4 inner ring two ends are attached on the basic circle 9 of described connection reinforcing bar 1 with ribbing or across on the cross rib 10 of adjacent connection reinforcing bar 1 described with ribbing;
Fig. 1 c and Fig. 1 d is screw type or plane semicircular ring respectively, it is wedge configuration 12 that described bearing ring 4 has one end along the cross section of its axis vertical profile, the wedge configuration 12 in described cross section is made up of with the straight line on the outer ring of described bearing ring 4 or curve 11 straight line 13 on the inner ring of described bearing ring 4, and straight line or the angle of the axis of the tangent line of curve 11 and described bearing ring 4 on described cross section are 15 °-60 °;
As shown in Figure 1, the grouting of branch sleeve 3 connects the big 0mm-3mm of diameter of the maximum circumscribed circle cylinder of bearing ring 4 outer rim on the connection reinforcing bar 1 described with ribbing that internal diameter size at chamber port 7 is inserted than this end, the grouting of branch sleeve 3 connect in chamber 5 everywhere internal diameter than big more than the 5mm of internal diameter size at grouting connection chamber port 7.
When reinforcing steel bar bear, joint of the present utility model sets the bearing ring of wedge structure on reinforcing bar in grout sleeve, and in the cement grout material that bearing ring 4 is embedded in sleeve, in butt joint, the bearing capacity raising of strength cement-based grouting material serves important function.
First: the girth of two semicircular ring of the described bearing ring 4 projection in the plane being perpendicular to described connection reinforcing bar 1 axis with ribbing and thickness are respectively greater than girth and the height that the cross rib 10 of described connection reinforcing bar 1 with ribbing projects at grade, make the active area active area much larger than reinforcing bar cross rib 10 of bearing ring 4 and surrounding cement grouting material 2, it is thus possible to the active force that transmission is bigger;nullSecondly,Described bearing ring 4 has, along the cross section of its axis vertical profile, the structure that one end is wedge shape,The stub end of bearing ring 4 wedge configuration 12 is in the position near its connection reinforcing bar 1 termination described with ribbing installed,Bearing ring 4 near the side of its connection reinforcing bar 1 termination described with ribbing installed against described connection reinforcing bar 1 cross rib 10 with ribbing,This structure makes the connection reinforcing bar 1 with ribbing in branch sleeve that suffered pulling force be passed to the strength cement-based grouting material 2 of surrounding by cross rib 10,The tangent line of wedge configuration 12 outer ring straight line or curve 11 is 15 °-60 ° with the angle of the axis of described bearing ring 4,By axial force that Force decomposition is reinforcing bar and radial force,Strength cement-based grouting material 2 has then been subjected to shear stress,Also subject to multidirectional compressive stress,Thereby,The bearing capacity of the strength cement-based grouting material 2 being wrapped in connection reinforcing bar 1 with ribbing in joint is improved.
Secondly, the grouting of branch sleeve 3 of the present utility model connects the big 0mm-3mm of diameter of the maximum circumscribed circle cylinder of the bearing ring outer rim on the connection reinforcing bar 1 described with ribbing that internal diameter size at chamber port 7 is inserted than this end, the i.e. maximum outside diameter in aperture and bearing ring 4 that grouting connects chamber port 7 is closely sized to, the strength cement-based grouting material 2 making grouting connect in the chamber 5 inwall by 3 two ends of the branch sleeve grouting connection chamber 5 to branch sleeve 4 serves supporting role, and the anchorage effect connecting reinforcing bar in strength cement-based grouting material 2 butt joint increases significantly;And the grouting of branch sleeve 3 connects in chamber 5 internal diameter everywhere and connects big more than the 5mm of internal diameter size at chamber port 7 than grouting, then eliminate the reinforcing bar cross rib that conventional grout joint there will be press close to cause mutually with sleeve lining strength cement-based grouting material 2 cross thin and cannot be for the defect of reinforcing bar offer anchorage effect;It is much smaller that the diameter of bore of branch sleeve 3 end of the present utility model compares the barrel bore diameter conventional sleeve grouting joint more than more than bar diameter 10mm, even if joint the most of the present utility model is bigger at connection reinforcing bar 1 tension stress with ribbing, when being deformed bigger, branch sleeve 3 remains to support grouting and connects the strength cement-based grouting material 2 in chamber 5, make the stripping of strength cement-based grouting material 2 and damaged reduction, the structure of branch sleeve 3 the most of the present utility model is when reinforcing bar tension, it is more permanent than the anchorage effect of conventional grout sleeve keeps, thus the bearing capacity that improve joint is made that contribution.
3rd, bearing ring of the present utility model 4 is located near the steel bar end of branch sleeve grouting connection depths, chamber 5, and reducing bearing ring 4 is affected by extraneous corrosive medium.The anchorage length of steel bar of conventional grout sleeve reaches 8 times of bar diameters, this utility model can shortening joint size, but joint anchorage length is not less than 3 times of bar diameters, and end install bearing ring 4 within a fitting between region, it is extremely difficult that the high-strength cement base grouting material 2 of the hardening of corrosive medium multiple the to be passed through above thickness of bar diameter arrives near bearing ring 4, so the corrosive medium outside joint branch sleeve 3 is difficult to damage bearing ring 4 and the rebar surface about being embedded in depths, therefore when using with to be connected reinforcing bar be under same corrosion resistance or more preferable corrosion proof material context at branch sleeve 3 material, the corrosion resisting property of joint of the present utility model can reach to be equal to the highest with parent material of reinforcement rebar.
4th, bearing ring of the present utility model 4 local welding is connected on reinforcing bar, and the installment work of bearing ring 4 is simple, convenient, work efficiency is high, and the connection speed of connection reinforcing bar 1 with ribbing the most thus improves.nullIn the strength cement-based grouting material 2 that bearing ring 4 is embedded in joint,Bearing ring 4 mainly relies on its reinforcing bar cross rib 10 relied on the power transmission of reinforcing bar,And the shear resistance of reinforcing bar cross rib 10 is much larger than the bearing capacity of the strength cement-based grouting material 2 supporting bearing ring 4,The strength cement-based grouting material 2 deformation when being stressed is the least,Connection reinforcing bar 1 with ribbing will be overlayed on reinforcing bar basic circle 9 by strength cement-based grouting material 2 by bearing ring during pulling force 4 always,It is close to cross rib 10 limit,And transmit pulling force suffered by reinforcing bar to the strength cement-based grouting material 2 of surrounding,Therefore without being firmly connected with reinforcing bar,The various resistances that the purpose of local welding is run into when being only that and ensure the bearing ring 4 attachment force with reinforcing bar more than reinforcing bar insertion branch sleeve 3,Ensure that the insertion smoothly installing the connection reinforcing bar 1 with ribbing of bearing ring 4 is in place,The local welding of bearing ring need not large volume、High power welding equipment,Construction efficiency is high,Therefore this utility model compares existing sleeve grouting jointing,Joint link cost significantly reduces.
Embodiment one
As in figure 2 it is shown, apply joint of the present utility model and branch sleeve to connect the schematic diagram of vertical reinforcement.
nullFirst bearing ring 4 is installed,Take the bearing ring 4 matched with bar gauge and be buckled in top to be connected reinforcing bar 1 and the bottom connection with ribbing reinforcing bar 1 that is connected with ribbing respectively near between the cross rib 10 of bar connecting termination,The centre of bearing ring 4 inner ring is attached on the basic circle 9 of two connection reinforcing bars 1 with ribbing respectively,If bearing ring 4 shape is the screw type bearing ring 4 consistent with the angle of reinforcing bar axis with reinforcing bar cross rib 10,The two ends of bearing ring 4 also should be attached on the basic circle of two connection reinforcing bars 1 with ribbing respectively,If bearing ring 4 shape is plane bearing ring 4,Then the two ends of bearing ring 4 can be across the cross rib 10 of two connection reinforcing bars 1 with ribbing on the afterbody of longitudinal rib 8,Wedge configuration 12 stub end of bearing ring 4 is in the position near its connection reinforcing bar 1 termination with ribbing installed,Bearing ring 4 near the side of its connection reinforcing bar 1 termination with ribbing installed against connection reinforcing bar 1 cross rib 10 with ribbing,Then with spot welding bearing ring 4 near the two ends of longitudinal rib 8,By its local welding upper、On the connection reinforcing bar 1 with ribbing of bottom,Until the bearing ring 4 that design requires all is weldingly fixed on the position of regulation;
nullThen,Connection reinforcing bar 1 with ribbing is inserted branch sleeve 3,First connection reinforcing bar 1 with ribbing for the bottom fixing bearing ring 4 is fixed,Sealing member 16 is entangled in the position that bottom connection with ribbing reinforcing bar 1 is design insertion depth away from termination,Under branch sleeve 3 is vertically overlapped,The grouting below branch sleeve 3 of bottom connection with ribbing reinforcing bar 1 and bearing ring 4 connects chamber port 7 and enters grouting connection chamber 5,Until branch sleeve 3 is close to sealing member 16,Again connection reinforcing bar 1 with ribbing for the top fixing bearing ring 4 is inserted grouting connection chamber 5 through grouting connection chamber, the top port 7 of branch sleeve 3,Until connection with ribbing reinforcing bar 1 termination, top withstands on connection with ribbing reinforcing bar 1 termination, bottom,Fix with stirrup or other fixing materials、Bottom connection with ribbing reinforcing bar 1,Other connection reinforcing bar of this component is installed successively by above same steps again,After installing,The connection reinforcing bar with ribbing 1 connected by this grout sleeve with stirrup sockets with other reinforcing bar is mutually transverse,With thin wire, stirrup and each connection reinforcing bar are mutually tied up fastening again;
nullFinally,Product requirement by strength cement-based grouting material 2,Make strength cement-based grouting material 2 slurry,With grouting equipment by strength cement-based grouting material 2 slurry from below cross slurry hole 6 inject,Until the slurry hole 6 of crossing that strength cement-based grouting material 2 slurry is above branch sleeve 3 is flowed out,The slurry hole 6 excessively of top is blocked with sealing-plug,Until the grouting that strength cement-based grouting material 2 is above branch sleeve 3 connects chamber port 7 gap location that be connected reinforcing bar 1 with ribbing with top and flows out,Remove provisions for grouting again,The slurry hole 6 excessively below branch sleeve 3 blocked by timely sealing-plug,The grouting of connection reinforcing bar 1 with ribbing is connected by this has i.e. accused,The grouting of other branch sleeve 3 is completed again by same step,Ensure that reinforcing bar and sleeve are the most undisturbed before strength cement-based grouting material 2 solidifies and reaches the intensity of regulation,After strength cement-based grouting material 2 comprcssive strength meets requirement,The bar connecting of this component is fully completed,Carry out support template again、The operation of casting concrete.
Embodiment two
As it is shown on figure 3, apply joint of the present utility model and branch sleeve to connect the schematic diagram of horizontal reinforcement.
The branch sleeve of joint of the present utility model is made up of cylinder 15 and end cap 14, and is provided with sealing member 16 at grouting aperture, end, chamber.
First with embodiment one step, take the bearing ring 4 matched with bar gauge, bearing ring 4 is fixed on request between the end cross rib 10 of two connected connection reinforcing bars 1 with ribbing;
Then, piece connection reinforcing bar 1 level with ribbing is fixed, sealing member 16 is entangled in the position that fixing connection reinforcing bar 1 with ribbing is design insertion depth away from termination, the grouting of branch sleeve 3 is connected chamber port 7 and is laterally enclosed within this connection reinforcing bar 1 with ribbing and bearing ring 4 end, again connection reinforcing bar 1 with ribbing and bearing ring 4 are entered grouting connection chamber 5 through the grouting connection chamber port 7 of branch sleeve 3, until branch sleeve 3 is close to sealing member 16, reach the position that design requires;Again a connection reinforcing bar 1 with ribbing is operated also according to first reinforcing bar side, sealing member 16 is entangled in the position that fixing connection reinforcing bar 1 with ribbing is design insertion depth away from termination, connection reinforcing bar 1 with ribbing and bearing ring 4 are entered grouting connection chamber 5 through the grouting connection chamber port 7 of branch sleeve 3, until branch sleeve 3 is close to sealing member 16, reach the position that design requires;The slurry hole 6 of crossing of branch sleeve 3 is gone to the top position of the connection reinforcing bar 1 with ribbing that this joint connects, other connection reinforcing bar of this component is installed successively by same steps again, after installing, the connection reinforcing bar with ribbing 1 connected by this grout sleeve with stirrup sockets with other reinforcing bar is mutually transverse, then with thin wire, stirrup and each connection reinforcing bar is mutually tied up fastening;
Finally, product requirement by strength cement-based grouting material 2, make strength cement-based grouting material 2 slurry, with grouting equipment, strength cement-based grouting material 2 slurry is injected from the slurry hole 6 of crossing of branch sleeve 3 one end, until strength cement-based grouting material 2 slurry flows out from the slurry hole 6 of crossing of branch sleeve 3 other end, the grouting of connection reinforcing bar 1 with ribbing is connected by this has i.e. accused, ensure that branch sleeve 3 is no longer influenced by collision or rotates, the grouting of other branch sleeve 3 is completed again by same step, before strength cement-based grouting material 2 solidifies and reaches the intensity of regulation, guarantee that reinforcing bar and sleeve are the most undisturbed, after strength cement-based grouting material 2 comprcssive strength meets requirement, the bar connecting of this component is fully completed, carry out support template again, the operation of casting concrete.
Embodiment three
As shown in Figure 4, joint of the present utility model and branch sleeve is applied to connect the schematic diagram of horizontal reinforcement.
nullThe present embodiment operates essentially identical with embodiment two,Simply sealing member 16 need not first be entangled on connection reinforcing bar 1 with ribbing,Due to the positioning limit pin installed in the middle of branch sleeve 3 or screw 17,After the connection reinforcing bar 1 with ribbing that two ends are inserted enters the grouting connection chamber 5 of branch sleeve 3,Until after withstanding on this position-limitting pin or screw,I.e. stop,After both sides reinforcing bar is all inserted into putting in place,The slurry hole 6 of crossing of branch sleeve 3 is gone to the top position of the connection reinforcing bar 1 with ribbing that this joint connects,Sealing member 16 or other plugging material it is wound around again at the aperture, end of branch sleeve 3,Finally,Ibid step is fixed and is in the milk,The grouting of connection reinforcing bar 1 with ribbing is connected by this has i.e. accused,Ensure that branch sleeve 3 is no longer influenced by collision or rotates,The grouting of other branch sleeve 3 is completed again by same step,Before strength cement-based grouting material 2 solidifies and reaches the intensity of regulation, guarantee that reinforcing bar and sleeve are the most undisturbed,After strength cement-based grouting material 2 comprcssive strength meets requirement,The bar connecting of this component is fully completed,Carry out support template again、The operation of casting concrete.
Above explanation and embodiment are only exemplary, scope of the present utility model are not constituted any restriction.It will be understood by those skilled in the art that and the details of technical solutions of the utility model and form can be modified or replace under without departing from spirit and scope of the present utility model, but these amendments and replacement each fall within protection domain of the present utility model.

Claims (9)

1. a short sleeve grouting reinforcement connecting joint, including connection reinforcing bar (1) with ribbing, branch sleeve (3), strength cement-based grouting material (2), bearing ring (4);It is provided with grouting in described branch sleeve (3) and connects chamber (5), the sidewall of described branch sleeve (3) is provided with and grouting connects slurry hole (6) excessively of UNICOM inside and outside chamber (5), described grouting irrigates described strength cement-based grouting material (2) in connecting chamber (5), after described strength cement-based grouting material (2) solidification with described branch sleeve (3), with ribbing be connected reinforcing bar (1), bearing ring (4) is combined together to form a splice, it is characterised in that:
The bearing ring (4) of at least one pair of plane or screw type it is provided with between the termination cross rib (10) of described connection reinforcing bar (1) with ribbing, the described bearing ring (4) projection in the plane being perpendicular to described connection reinforcing bar (1) axis with ribbing is two semicircular ring, the girth of described semicircular ring and thickness are respectively greater than girth and the height that the cross rib (10) of described connection reinforcing bar (1) with ribbing projects at grade, described bearing ring (4) uses in pairs, it is attached separately on the two sides that described connection reinforcing bar (1) with ribbing is separated by longitudinal rib (8), with the two panels of a pair bearing ring (4) along the distance of the axis relative misalignment of described connection reinforcing bar (1) with ribbing less than a rib spacing of described connection reinforcing bar (1) with ribbing;
The pars intermedia of the inner ring of described bearing ring (4) is attached on the basic circle (9) of described connection reinforcing bar (1) with ribbing, and it is upper or across on the cross rib (10) of adjacent connection reinforcing bar (1) described with ribbing that the two ends of the inner ring of described bearing ring (4) are attached to the basic circle (9) of described connection reinforcing bar (1) with ribbing;
It is wedge configuration (12) that described bearing ring (4) has one end along the cross section of its axis vertical profile, the wedge configuration (12) in described cross section is made up of with the straight line on the outer ring of described bearing ring (4) or curve (11) the straight line (13) on the inner ring of described bearing ring (4), and straight line or the angle of the axis of the tangent line of curve (11) and described bearing ring (4) on described cross section are 15 °-60 °;
It is front that described connection reinforcing bar (1) with ribbing inserts described branch sleeve (3), described bearing ring (4) is fixed on described connection reinforcing bar (1) with ribbing by local welding, the tip of described bearing ring (4) wedge configuration (12) is located remotely from the position of described connection reinforcing bar (1) termination with ribbing, and wedge configuration (12) stub end of described bearing ring (4) is located close to the position of described connection reinforcing bar (1) termination with ribbing;
The grouting of described branch sleeve (3) connects port (7) place, the chamber internal diameter size big 0mm-3mm of diameter than the maximum circumscribed circle cylinder of bearing ring (4) outer rim on the connection reinforcing bar (1) described with ribbing inserted, and in grouting connection chamber (5) of described branch sleeve (3), internal diameter connects big more than the 5mm of internal diameter size at port (7) place, chamber than grouting everywhere.
2. short sleeve grouting reinforcement connecting joint as claimed in claim 1, it is characterised in that the metal material that described bearing ring (4) is not less than 540MPa by tensile strength is made.
3. the short sleeve grouting reinforcement connecting joint as described in claim 1 any one, it is characterized in that, described branch sleeve (3) includes cylinder (15) and end cap (14), described end cap (14) by the external screw thread set by one end with at the endoporus of described cylinder (15) set by female thread be connected.
4. the short sleeve grouting reinforcement connecting joint as described in claim 1 any one, it is characterised in that described branch sleeve (3) is made up of corrosion-resisting steel or stainless steel material.
5. the short sleeve grouting reinforcement connecting joint as described in claim 1 any one, it is characterised in that described bearing ring (4) is made up of corrosion-resisting steel or stainless steel material.
6. the short sleeve grouting reinforcement connecting joint as described in claim 1 any one, it is characterised in that be provided with sealing member (16) at the aperture, end, grouting chamber of described branch sleeve (3).
7. the short sleeve grouting reinforcement connecting joint as described in claim 1 any one, it is characterised in that described branch sleeve (3) middle part is provided with position-limitting pin or screw (17).
8. the branch sleeve of the short sleeve grouting reinforcement connecting joint as described in any one of claim 1-7, it is characterized in that: be provided with the grouting for filling concrete base grouting material (2) in described branch sleeve (3) and connect chamber (5), the sidewall of described branch sleeve (3) is provided with and grouting connects slurry hole (6) excessively of UNICOM inside and outside chamber (5), the grouting of described branch sleeve (3) connects the big 0mm-3mm of diameter of the maximum circumscribed circle cylinder of bearing ring (4) outer rim on the connection reinforcing bar (1) described with ribbing that port (7) place, chamber internal diameter size is inserted than this end, in grouting connection chamber (5) of described branch sleeve (3), internal diameter connects big more than the 5mm of internal diameter size at port (7) place, chamber than grouting everywhere.
9. the bearing ring of the short sleeve grouting reinforcement connecting joint as described in any one of claim 1-7, it is characterized in that: it is wedge configuration (12) that described bearing ring (4) has one end along the cross section of its axis vertical profile, the wedge configuration (12) in described cross section is made up of with the straight line on the outer ring of described bearing ring (4) or curve (11) the straight line (13) on the inner ring of described bearing ring (4), and straight line or the angle of the axis of the tangent line of curve (11) and described bearing ring (4) on described cross section are 15 °-60 °.
CN201521138293.6U 2015-12-31 2015-12-31 Short sleeve grout steel bar connection connects and connecting sleeve and pressure -bearing ring that have thereof CN205617661U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106437037A (en) * 2016-10-09 2017-02-22 深圳市现代营造科技有限公司 Extruding grouting sleeve used for connection of steel bar and extruding manufacturing method thereof
CN106677433A (en) * 2016-11-25 2017-05-17 沈阳建筑大学 Self-tightening half grouting sleeve connecting piece
CN106930472A (en) * 2015-12-31 2017-07-07 中冶建筑研究总院有限公司 Short sleeve grouting reinforcement connecting joint and its branch sleeve and bearing ring
CN109403550A (en) * 2017-08-16 2019-03-01 润弘精密工程事业股份有限公司 The method of steel bar connector and continued access spiral

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106930472A (en) * 2015-12-31 2017-07-07 中冶建筑研究总院有限公司 Short sleeve grouting reinforcement connecting joint and its branch sleeve and bearing ring
CN106930472B (en) * 2015-12-31 2020-01-03 中冶建筑研究总院有限公司 Short sleeve grouting steel bar connecting joint
CN106437037A (en) * 2016-10-09 2017-02-22 深圳市现代营造科技有限公司 Extruding grouting sleeve used for connection of steel bar and extruding manufacturing method thereof
CN106677433A (en) * 2016-11-25 2017-05-17 沈阳建筑大学 Self-tightening half grouting sleeve connecting piece
CN106677433B (en) * 2016-11-25 2019-01-22 沈阳建筑大学 Half grout sleeve connector of self-tightening type
CN109403550A (en) * 2017-08-16 2019-03-01 润弘精密工程事业股份有限公司 The method of steel bar connector and continued access spiral

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