CN105133795A - Variable-diameter half grouting sleeve and construction method thereof - Google Patents
Variable-diameter half grouting sleeve and construction method thereof Download PDFInfo
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- CN105133795A CN105133795A CN201510554194.4A CN201510554194A CN105133795A CN 105133795 A CN105133795 A CN 105133795A CN 201510554194 A CN201510554194 A CN 201510554194A CN 105133795 A CN105133795 A CN 105133795A
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Abstract
The invention provides a variable-diameter half grouting sleeve and a construction method thereof. A seamless steel pipe is adopted as a body pipe, the inner wall of the body pipe is a concave-convex surface, the upper end of the body pipe is connected with the large-diameter end of a conical pipe, and the small-diameter end of the conical pipe is connected with one end of a cylindrical pipe. The construction method includes the steps that 1, the variable-diameter half grouting sleeve is manufactured; 2, a machining die is manufactured; 3, the upper portion of the short pipe in the step1 is heated; 4, the heated part of the short pipe is placed into a groove in a lower die, and an upper die is placed on the heated short pipe; 5, a grout injecting hole and a grout discharging hole are formed in the body pipe; 6, a connecting steel bar is inserted into the cylindrical pipe of the variable-diameter half grouting sleeve; 7, the variable-diameter half grouting sleeve, which is connected with the steel bar, in the step6 is placed into the die of a prefabricated component, and after concrete is poured for curing, and the steel bar connected with a building or the prefabricated component is placed into the body pipe to be connected after pouring. The variable-diameter half grouting sleeve makes tight contact with the connecting steel bar through extrusion to overcome the defects in the prior art.
Description
Technical field
The present invention relates to the reinforcing bar connector used in building unit, is a kind of reducing type half grout sleeve and construction method thereof.
Background technology
The grout sleeve of current use is a kind of ironcasting, it is made up of the cylinder of equal diameters and conic tube, cylinder internal chamber wall arranges annular concave-convex, conic tube inwall arranges screw thread, and on cylindrical shell, offer injected hole and slurry outlet, this grout sleeve directly will insert reinforcing bar post-grouting in construction in cylinder, conic tube needs to insert another connecting reinforcement, reinforcing bar due to the connection of grout sleeve needs is the reinforcing bar in prefabricated units, so, rib on reinforcing bar must be peeled off clean at the construction field (site), cold breakdown is carried out in reinforcing bar one end and becomes silk, make reinforcing bar Cheng Sihou again with the threaded engagement on the conical cylinder section inwall in grout sleeve, the maximum deficiency of this grout sleeve is: must in construction on connecting reinforcement machining screw.On-the-spot machining screw complex procedures, the more difficult control of quality specifications, when threaded reinforcing bar end is inserted the thread segment of grout sleeve, torque spanner must be used, operation easier is large, due to operating personnel technical level not etc., the length that reinforcing bar inserts in grout sleeve must meet again national regulation requirement, extremely difficultly accomplishes higher qualification rate.Another deficiency of this grout sleeve is that manufacturing cost is high.
Summary of the invention
The object of this invention is to provide a kind of reducing type half grout sleeve and construction method thereof, to solve the deficiencies in the prior art.
The present invention for achieving the above object, be achieved through the following technical solutions: reducing type half grout sleeve, adopt seamless steel pipe as main body tube, main body tube inwall is male and fomale(M&F), the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end.The inwall of cylindrical tube is smooth surface.Main body tube equal diameters, main body tube is offered injected hole and slurry outlet.The length H of cylindrical tube
1the length H of main body tube
21/4-1/2.The outer diameter D of cylindrical tube
2it is the outer diameter D of main body tube
11/6-1/3.
The construction method step of described reducing type half grout sleeve is as follows:
1. reducing type half grouting sleeve is prepared: get seamless steel pipe length as required and be cut into several short tube;
2. processing mold is prepared: processing mold is divided into upper die and lower die, upper die and lower die structure is identical, the structure of counterdie is: offer groove in the middle part of counterdie, the length of the through counterdie of groove, the bottom of groove is taper arch groove, taper arch groove top is connected with the bottom of semicolumn groove, and the top of semicolumn groove is positioned at the end face of counterdie;
3. by step 1. in the top of short tube be heated to 600-700 DEG C;
4. the short tubular portions of heating is inserted in the groove of counterdie, again patrix is placed on the short tube of heating, pressure is applied to upper die and lower die, upper die and lower die are fastened, and the heating short tube be extruded forms conical tube and cylindrical tube, makes reducing type half grout sleeve, the bottom of reducing type half grout sleeve is the main body tube of equal diameters, the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end, the outer diameter D of cylindrical tube
2it is main body tube outer diameter D
11/6-1/3;
5. on main body tube, injected hole and slurry outlet is offered;
6. getting connecting reinforcement inserts in the cylindrical tube of reducing type half grout sleeve, upper die and lower die in extrusion die are placed on respectively the outer wall of cylindrical tube, pressure is applied to extrusion die, make the internal diameter of cylindrical tube diminish to connecting reinforcement close contact, upper die and lower die structure is identical, arranges arc groove in patrix;
7. by step 6. in be connected to reinforcing bar reducing type half grout sleeve insert in the mould of prefabricated units, flexible pipe is adopted to make injected hole and slurry outlet communicate with mold exterior respectively, reinforcing bar leans out prefabricated units, the main body tube lower end of reducing type half grout sleeve is concordant with the bottom face of prefabricated units, casting concrete is after maintenance, by needing the reinforcing bar on connecting building thing or the reinforcing bar on prefabricated units to insert in main body tube, after casting, complete connection.The length H of cylindrical tube
1the length H of main body tube
21/4-1/2.Described seamless steel pipe internal wall is male and fomale(M&F).Described step 6. in extrusion die patrix arc groove in groove is set.
The construction method concrete steps of described reducing type half grout sleeve are as follows:
1. reducing type half grouting sleeve is prepared: get seamless steel pipe length as required and be cut into several short tube;
2. processing mold is prepared: processing mold is divided into upper die and lower die, upper die and lower die structure is identical, the structure of counterdie is: offer groove in the middle part of counterdie, the length of the through counterdie of groove, the bottom of groove is taper arch groove, taper arch groove top is connected with the bottom of semicolumn groove, and the top of semicolumn groove is positioned at the end face of counterdie;
3. by step 1. in the top of short tube be heated to 650 DEG C;
4. the short tubular portions of heating is inserted in the groove of counterdie, again patrix is placed on the short tube of heating, pressure is applied to upper die and lower die, upper die and lower die are fastened, and the heating short tube be extruded forms conical tube and cylindrical tube, makes reducing type half grout sleeve, the bottom of reducing type half grout sleeve is the main body tube of equal diameters, the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end, the outer diameter D of cylindrical tube
2it is main body tube outer diameter D
11/5;
5. on main body tube, injected hole and slurry outlet is offered;
6. getting connecting reinforcement inserts in the cylindrical tube of reducing type half grout sleeve, upper die and lower die in extrusion die are placed on respectively the outer wall of cylindrical tube, pressure is applied to extrusion die, make the internal diameter of cylindrical tube diminish to connecting reinforcement close contact, upper die and lower die structure is identical, arranges arc groove in patrix;
7. by step 6. in be connected to reinforcing bar reducing type half grout sleeve insert in the mould of prefabricated units, flexible pipe is adopted to make injected hole and slurry outlet communicate with mold exterior respectively, reinforcing bar leans out prefabricated units, the main body tube lower end of reducing type half grout sleeve is concordant with the bottom face of prefabricated units, casting concrete is after maintenance, by needing the reinforcing bar on connecting building thing or the reinforcing bar on prefabricated units to insert in main body tube, after casting, complete connection.
Reducing type half grout sleeve of the present invention can adopt seamless steel pipe to make, choosing steel pipe inner wall is that the long tube of male and fomale(M&F) intercepts into section, it is made to be deformed into shape of the present invention by adding hot extrusion, again connecting reinforcement is expressed in reducing type half grout sleeve, in factory, make half product, then transport to construction site and cast.Reducing type half grout sleeve of the present invention changes the construction method that traditional prefabricated units connect, it makes, and building operations is quick, working procedure simplifies, significantly improves efficiency of construction and construction quality, and the length of connecting reinforcement insertion reducing type half grout sleeve easily controls, quality specifications is easy to detect.The weight ratio prior art of reducing type half grout sleeve significantly alleviates, and the supporting power of building is reduced, and the manufacturing cost of reducing type half grout sleeve is lower than prior art by about 70%.The shape of reducing type half grout sleeve is easy to connecting reinforcement, and makes it be out of shape, and makes reducing type half grout sleeve through extruding and connecting reinforcement close contact.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of reducing type half grout sleeve; Accompanying drawing 2 is A-A sectional structure schematic diagrames in accompanying drawing 1; Accompanying drawing 3 is state diagrams that connection lengthwise rib inserts the cylindrical tube of reducing type half grout sleeve; Accompanying drawing 4 is by the cylindrical tube in reducing type half grout sleeve and the schematic diagram after connection lengthwise rib compact siro spinning technology with extrusion die; Accompanying drawing 5 is processing mold lower die structure schematic diagrames that in construction method of the present invention, step is 2. described; Accompanying drawing 6 is B-B sectional structure schematic diagrames in accompanying drawing 5; Accompanying drawing 7 is extrusion die upper die structure schematic diagrames that in construction method of the present invention, step is 5. described; Accompanying drawing 8 is plan structure schematic diagrames of accompanying drawing 7.
In figure: 1 be main body tube, 2 are cylindrical tube, 3 are conical tubes, 4 are injected holes, 5 are slurry outlets, 6 are main body tube inwall male and fomale(M&F)s, 7 is connecting reinforcements, 8 is that external form after cylindrical tube extruding is protruding, 9 patrixes, 14 that are counterdies, 11 in processing mold are taper arch grooves, 12 to be semicolumn grooves, 13 be in extrusion die are arc grooves, 15 are grooves.
Detailed description of the invention
The present invention will be further described for contrast accompanying drawing.
Reducing type half grout sleeve of the present invention adopts seamless steel pipe as main body tube 1, main body tube 1 inwall is male and fomale(M&F), the upper end of main body tube 1 connects with the larger diameter end of conical tube 3, the smaller diameter end of conical tube 3 connects with cylindrical tube 2 one end, the inwall of cylindrical tube 2 is smooth surface, main body tube 1 equal diameters, main body tube 1 is offered injected hole 4 and slurry outlet 5, reducing type half grout sleeve of the present invention, cylindrical tube 2 is for connecting reinforcement, because cylindrical tube 2 section diameter is equal, the length that it can make connecting reinforcement insert in reducing type half grout sleeve is controlled, be easy to be up to state standards, and be easy to detect, simultaneously, can be large with connecting reinforcement contact area, and increase tensile strength.When cylindrical tube 2 inwall is smooth surface, the manufacturing procedure of reducing type half grout sleeve can be reduced, not affect the bonding strength of cylindrical tube 2 and connecting reinforcement simultaneously.
Preferred embodiments of the present invention are: the length H of cylindrical tube 2
1the length H of main body tube 1
21/4-1/2.The further preferred version of the present invention is: the outer diameter D of cylindrical tube 2
2it is the outer diameter D of main body tube 1
11/6-1/3, the program is convenient to processing, and can realize higher tensile strength further.Cylindrical tube 2 outer diameter D of reducing type half grout sleeve of the present invention
2be less than main body tube 1 outer diameter D
1, when cylindrical tube 2 outer diameter D
2it is main body tube 1 outer diameter D
11/6-1/3 time, manufacture craft is simple, the tensile strength of reducing type half grout sleeve is high, and cost of manufacture can be made lower.
Angle α between main body tube 1 outer wall of the present invention and conical tube 3 outer wall is 20 °-30 °, and it can improve the yield rate of reducing type half grout sleeve, and can ensure ratio of briquetting and the Forming Quality of cylindrical tube 2 further.
Step of the present invention 6. in extrusion die patrix arc groove in groove is set, the groove arranged in patrix is convenient to that mould is fixing does not produce displacement, make the cylindrical tube distortion of reducing type half grout sleeve fast, and more squeezed tight, on connecting reinforcement, make connection more firm.
The construction method of reducing type half grout sleeve of the present invention, step is as follows:
1. reducing type half grouting sleeve is prepared: get seamless steel pipe length as required and be cut into several short tube;
2. processing mold is prepared: processing mold is divided into upper die and lower die, upper die and lower die structure is identical, the structure of counterdie is: offer groove in the middle part of counterdie, the length of the counterdie in the through processing mold of groove, the bottom of groove is taper arch groove, taper arch groove top is connected with the bottom of semicolumn groove, and the top of semicolumn groove is positioned at the end face of counterdie;
3. by step 1. in the top of short tube be heated to 600-700 DEG C;
4. the short tubular portions of heating is inserted in the groove of counterdie, again patrix is placed on the short tube of heating, pressure is applied to upper die and lower die, upper die and lower die are fastened, and the heating short tube be extruded forms conical tube and cylindrical tube, makes reducing type half grout sleeve, the bottom of reducing type half grout sleeve is the main body tube of equal diameters, the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end, the outer diameter D of cylindrical tube
2it is main body tube outer diameter D
11/6-1/3;
5. on main body tube, injected hole and slurry outlet is offered;
6. getting connecting reinforcement inserts in the cylindrical tube of reducing type half grout sleeve, upper die and lower die in extrusion die are placed on respectively the outer wall of cylindrical tube, pressure is applied to extrusion die, make the internal diameter of cylindrical tube diminish to connecting reinforcement close contact, upper die and lower die structure is identical, arranges arc groove in patrix;
7. by step 6. in be connected to reinforcing bar reducing type half grout sleeve insert in the mould of prefabricated units, flexible pipe is adopted to make injected hole and slurry outlet communicate with mold exterior respectively, reinforcing bar leans out prefabricated units, the main body tube lower end of reducing type half grout sleeve is concordant with the bottom face of prefabricated units, casting concrete is after maintenance, by needing the reinforcing bar on connecting building thing or the reinforcing bar on prefabricated units to insert in main body tube, after casting, complete connection.Step 7. described in the building that connects of needs on reinforcing bar can be ground leans out reinforcing bar, site operation bridge on the reinforcing bar etc. that leans out.Described prefabricated units are prefabricated panel or precast beam etc.Insert in prefabricated units by reducing type half grout sleeve being connected to reinforcing bar, the connecting reinforcement in reducing type half grout sleeve casts in prefabricated units, and reducing type half grout sleeve is positioned at prefabricated units outside, for the prefabricated units of lower one deck provide connection.
Above-mentioned construction method revolutionizes traditional construction method, reducing type half grout sleeve and the reinforcing bar be fastenedly connected with it all can complete in factory, working environment is pollution-free, to the pollution of working environment and air when decreasing casting, and significantly can improve rate of progress of the construction, working procedure is significantly simplified, and construction quality easily controls and detects, and improves the degree of being connected firmly of prefabricated units in building operations.The length H of the cylindrical tube in above-mentioned construction method
1the length H of main body tube
21/4-1/2; Described seamless steel pipe internal wall is male and fomale(M&F).Described step 6. in extrusion die patrix arc groove in groove is set.
The present invention has the construction method of following multiple reducing type half grout sleeve:
1, the construction method concrete steps of reducing type half grout sleeve are as follows:
1. reducing type half grouting sleeve is prepared: get seamless steel pipe length as required and be cut into several short tube;
2. processing mold is prepared: processing mold is divided into upper die and lower die, upper die and lower die structure is identical, the structure of counterdie is: offer groove in the middle part of counterdie, the length of the through counterdie of groove, the bottom of groove is taper arch groove, taper arch groove top is connected with the bottom of semicolumn groove, and the top of semicolumn groove is positioned at the end face of counterdie;
3. by step 1. in the top of short tube be heated to 650 DEG C;
4. the short tubular portions of heating is inserted in the groove of counterdie, again patrix is placed on the short tube of heating, pressure is applied to upper die and lower die, upper die and lower die are fastened, and the heating short tube be extruded forms conical tube and cylindrical tube, makes reducing type half grout sleeve, the bottom of reducing type half grout sleeve is the main body tube of equal diameters, the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end, the outer diameter D of cylindrical tube
2it is main body tube outer diameter D
11/5;
5. on main body tube, injected hole and slurry outlet is offered;
6. getting connecting reinforcement inserts in the cylindrical tube of reducing type half grout sleeve, upper die and lower die in extrusion die are placed on respectively the outer wall of cylindrical tube, pressure is applied to extrusion die, make the internal diameter of cylindrical tube diminish to connecting reinforcement close contact, upper die and lower die structure is identical, arranges arc groove in patrix;
7. by step 6. in be connected to reinforcing bar reducing type half grout sleeve insert in the mould of prefabricated units, flexible pipe is adopted to make injected hole and slurry outlet communicate with mold exterior respectively, reinforcing bar leans out prefabricated units, the main body tube lower end of reducing type half grout sleeve is concordant with the bottom face of prefabricated units, casting concrete is after maintenance, by needing the reinforcing bar on connecting building thing or the reinforcing bar on prefabricated units to insert in main body tube, after casting, complete connection.
Step 7. described in the building that connects of needs on reinforcing bar can be ground leans out reinforcing bar, site operation bridge on the reinforcing bar etc. that leans out.Described prefabricated units are prefabricated panel or precast beam etc.
The length H of the cylindrical tube in above-mentioned construction method
1the length H of main body tube
21/3; Described seamless steel pipe internal wall is male and fomale(M&F).Described step 6. in extrusion die patrix arc groove in groove is set.Insert in prefabricated units by reducing type half grout sleeve being connected to reinforcing bar, the connecting reinforcement in reducing type half grout sleeve casts in prefabricated units, and reducing type half grout sleeve is positioned at prefabricated units outside, for the prefabricated units of lower one deck provide connection.
2, the construction method concrete steps of reducing type half grout sleeve are as follows:
1. reducing type half grouting sleeve is prepared: get seamless steel pipe length as required and be cut into several short tube;
2. processing mold is prepared: processing mold is divided into upper die and lower die, upper die and lower die structure is identical, the structure of counterdie is: offer groove in the middle part of counterdie, the length of the through counterdie of groove, the bottom of groove is taper arch groove, taper arch groove top is connected with the bottom of semicolumn groove, and the top of semicolumn groove is positioned at the end face of counterdie;
3. by step 1. in the top of short tube be heated to 600 DEG C;
4. the short tubular portions of heating is inserted in the groove of counterdie, again patrix is placed on the short tube of heating, pressure is applied to upper die and lower die, upper die and lower die are fastened, and the heating short tube be extruded forms conical tube and cylindrical tube, makes reducing type half grout sleeve, the bottom of reducing type half grout sleeve is the main body tube of equal diameters, the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end, the outer diameter D of cylindrical tube
2it is main body tube outer diameter D
11/3;
5. on main body tube, injected hole and slurry outlet is offered;
6. getting connecting reinforcement inserts in the cylindrical tube of reducing type half grout sleeve, upper die and lower die in extrusion die are placed on respectively the outer wall of cylindrical tube, pressure is applied to extrusion die, make the internal diameter of cylindrical tube diminish to connecting reinforcement close contact, upper die and lower die structure is identical, arranges arc groove in patrix;
7. by step 6. in be connected to reinforcing bar reducing type half grout sleeve insert in the mould of prefabricated units, flexible pipe is adopted to make injected hole and slurry outlet communicate with mold exterior respectively, reinforcing bar leans out prefabricated units, the main body tube lower end of reducing type half grout sleeve is concordant with the bottom face of prefabricated units, casting concrete is after maintenance, by needing the reinforcing bar on connecting building thing or the reinforcing bar on prefabricated units to insert in main body tube, after casting, complete connection.
Step 7. described in the building that connects of needs on reinforcing bar can be ground leans out reinforcing bar, site operation bridge on the reinforcing bar etc. that leans out.Described prefabricated units are prefabricated panel or precast beam etc.
The length H of the cylindrical tube in above-mentioned construction method
1the length H of main body tube
21/2; Described seamless steel pipe internal wall is male and fomale(M&F).Described step 6. in extrusion die patrix arc groove in groove is set.Insert in prefabricated units by reducing type half grout sleeve being connected to reinforcing bar, the connecting reinforcement in reducing type half grout sleeve casts in prefabricated units, and reducing type half grout sleeve is positioned at prefabricated units outside, for the prefabricated units of lower one deck provide connection.
3, the construction method concrete steps of reducing type half grout sleeve are as follows:
1. reducing type half grouting sleeve is prepared: get seamless steel pipe length as required and be cut into several short tube;
2. processing mold is prepared: processing mold is divided into upper die and lower die, upper die and lower die structure is identical, the structure of counterdie is: offer groove in the middle part of counterdie, the length of the through counterdie of groove, the bottom of groove is taper arch groove, taper arch groove top is connected with the bottom of semicolumn groove, and the top of semicolumn groove is positioned at the end face of counterdie;
3. by step 1. in the top of short tube be heated to 700 DEG C;
4. the short tubular portions of heating is inserted in the groove of counterdie, again patrix is placed on the short tube of heating, pressure is applied to upper die and lower die, upper die and lower die are fastened, and the heating short tube be extruded forms conical tube and cylindrical tube, makes reducing type half grout sleeve, the bottom of reducing type half grout sleeve is the main body tube of equal diameters, the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end, the outer diameter D of cylindrical tube
2it is main body tube outer diameter D
11/6;
5. on main body tube, injected hole and slurry outlet is offered;
6. getting connecting reinforcement inserts in the cylindrical tube of reducing type half grout sleeve, upper die and lower die in extrusion die are placed on respectively the outer wall of cylindrical tube, pressure is applied to extrusion die, make the internal diameter of cylindrical tube diminish to connecting reinforcement close contact, upper die and lower die structure is identical, arranges arc groove in patrix;
7. by step 6. in be connected to reinforcing bar reducing type half grout sleeve insert in the mould of prefabricated units, flexible pipe is adopted to make injected hole and slurry outlet communicate with mold exterior respectively, reinforcing bar leans out prefabricated units, the main body tube lower end of reducing type half grout sleeve is concordant with the bottom face of prefabricated units, casting concrete is after maintenance, by needing the reinforcing bar on connecting building thing or the reinforcing bar on prefabricated units to insert in main body tube, after casting, complete connection.Step 7. described in the building that connects of needs on reinforcing bar can be ground leans out reinforcing bar, site operation bridge on the reinforcing bar etc. that leans out.Described prefabricated units are prefabricated panel or precast beam etc.
The length H of the cylindrical tube in above-mentioned construction method
1the length H of main body tube
21/4; Described seamless steel pipe internal wall is male and fomale(M&F).Described step 6. in extrusion die patrix arc groove in groove is set.Insert in prefabricated units by reducing type half grout sleeve being connected to reinforcing bar, the connecting reinforcement in reducing type half grout sleeve casts in prefabricated units, and reducing type half grout sleeve is positioned at prefabricated units outside, for the prefabricated units of lower one deck provide connection.
4, the construction method concrete steps of reducing type half grout sleeve are as follows:
1. reducing type half grouting sleeve is prepared: get seamless steel pipe length as required and be cut into several short tube;
2. processing mold is prepared: processing mold is divided into upper die and lower die, upper die and lower die structure is identical, the structure of counterdie is: offer groove in the middle part of counterdie, the length of the through counterdie of groove, the bottom of groove is taper arch groove, taper arch groove top is connected with the bottom of semicolumn groove, and the top of semicolumn groove is positioned at the end face of counterdie;
3. by step 1. in the top of short tube be heated to 680 DEG C;
4. the short tubular portions of heating is inserted in the groove of counterdie, again patrix is placed on the short tube of heating, pressure is applied to upper die and lower die, upper die and lower die are fastened, and the heating short tube be extruded forms conical tube and cylindrical tube, makes reducing type half grout sleeve, the bottom of reducing type half grout sleeve is the main body tube of equal diameters, the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end, the outer diameter D of cylindrical tube
2it is main body tube outer diameter D
11/4;
5. on main body tube, injected hole and slurry outlet is offered;
6. getting connecting reinforcement inserts in the cylindrical tube of reducing type half grout sleeve, upper die and lower die in extrusion die are placed on respectively the outer wall of cylindrical tube, pressure is applied to extrusion die, make the internal diameter of cylindrical tube diminish to connecting reinforcement close contact, upper die and lower die structure is identical, arranges arc groove in patrix;
7. by step 6. in be connected to reinforcing bar reducing type half grout sleeve insert in the mould of prefabricated units, flexible pipe is adopted to make injected hole and slurry outlet communicate with mold exterior respectively, reinforcing bar leans out prefabricated units, the main body tube lower end of reducing type half grout sleeve is concordant with the bottom face of prefabricated units, casting concrete is after maintenance, by needing the reinforcing bar on connecting building thing or the reinforcing bar on prefabricated units to insert in main body tube, after casting, complete connection.
Step 7. described in the building that connects of needs on reinforcing bar can be ground leans out reinforcing bar, site operation bridge on the reinforcing bar etc. that leans out.Described prefabricated units are prefabricated panel or precast beam etc.
The length H of the cylindrical tube in above-mentioned construction method
1the length H of main body tube
21/3; Described seamless steel pipe internal wall is male and fomale(M&F).Described step 6. in extrusion die patrix arc groove in groove is set.Insert in prefabricated units by reducing type half grout sleeve being connected to reinforcing bar, the connecting reinforcement in reducing type half grout sleeve casts in prefabricated units, and reducing type half grout sleeve is positioned at prefabricated units outside, for the prefabricated units of lower one deck provide connection.
Claims (10)
1. reducing type half grout sleeve, it is characterized in that: adopt seamless steel pipe as main body tube (1), main body tube (1) inwall is male and fomale(M&F), and the upper end of main body tube (1) connects with the larger diameter end of conical tube (3), and the smaller diameter end of conical tube (3) connects with cylindrical tube (2) one end.
2. reducing type half grout sleeve according to claim 1, is characterized in that: the inwall of cylindrical tube (2) is smooth surface.
3. reducing type half grout sleeve according to claim 1, is characterized in that: main body tube (1) equal diameters, main body tube (1) is offered injected hole (4) and slurry outlet (5).
4. reducing type half grout sleeve according to claim 1, is characterized in that: the length H of cylindrical tube (2)
1the length H of main body tube (1)
21/4-1/2.
5. reducing type half grout sleeve according to claim 1, is characterized in that: the outer diameter D of cylindrical tube (2)
2it is the outer diameter D of main body tube (1)
11/6-1/3.
6. the construction method of reducing type half grout sleeve described in any one of claim 1-5, is characterized in that: step is as follows:
1. reducing type half grouting sleeve is prepared: get seamless steel pipe length as required and be cut into several short tube;
2. processing mold is prepared: processing mold is divided into upper die and lower die, upper die and lower die structure is identical, the structure of counterdie is: offer groove in the middle part of counterdie, the length of the through counterdie of groove, the bottom of groove is taper arch groove, taper arch groove top is connected with the bottom of semicolumn groove, and the top of semicolumn groove is positioned at the end face of counterdie;
3. by step 1. in the top of short tube be heated to 600-700 DEG C;
4. the short tubular portions of heating is inserted in the groove of counterdie, again patrix is placed on the short tube of heating, pressure is applied to upper die and lower die, upper die and lower die are fastened, and the heating short tube be extruded forms conical tube and cylindrical tube, makes reducing type half grout sleeve, the bottom of reducing type half grout sleeve is the main body tube of equal diameters, the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end, the outer diameter D of cylindrical tube
2it is main body tube outer diameter D
11/6-1/3;
5. on main body tube, injected hole and slurry outlet is offered;
6. getting connecting reinforcement inserts in the cylindrical tube of reducing type half grout sleeve, upper die and lower die in extrusion die are placed on respectively the outer wall of cylindrical tube, pressure is applied to extrusion die, make the internal diameter of cylindrical tube diminish to connecting reinforcement close contact, upper die and lower die structure is identical, arranges arc groove in patrix;
7. by step 6. in be connected to reinforcing bar reducing type half grout sleeve insert in the mould of prefabricated units, flexible pipe is adopted to make injected hole and slurry outlet communicate with mold exterior respectively, reinforcing bar leans out prefabricated units, the main body tube lower end of reducing type half grout sleeve is concordant with the bottom face of prefabricated units, casting concrete is after maintenance, by needing the reinforcing bar on connecting building thing or the reinforcing bar on prefabricated units to insert in main body tube, after casting, complete connection.
7. the construction method of reducing type half grout sleeve according to claim 6, is characterized in that: the length H of cylindrical tube
1the length H of main body tube
21/4-1/2.
8. the construction method of reducing type half grout sleeve according to claim 6, is characterized in that: described seamless steel pipe internal wall is male and fomale(M&F).
9. the construction method of reducing type half grout sleeve according to claim 6, is characterized in that: described step 6. in extrusion die patrix arc groove in groove is set.
10. the construction method of reducing type half grout sleeve according to claim 6, is characterized in that: concrete steps are as follows:
1. reducing type half grouting sleeve is prepared: get seamless steel pipe length as required and be cut into several short tube;
2. processing mold is prepared: processing mold is divided into upper die and lower die, upper die and lower die structure is identical, the structure of counterdie is: offer groove in the middle part of counterdie, the length of the through counterdie of groove, the bottom of groove is taper arch groove, taper arch groove top is connected with the bottom of semicolumn groove, and the top of semicolumn groove is positioned at the end face of counterdie;
3. by step 1. in the top of short tube be heated to 650 DEG C;
4. the short tubular portions of heating is inserted in the groove of counterdie, again patrix is placed on the short tube of heating, pressure is applied to upper die and lower die, upper die and lower die are fastened, and the heating short tube be extruded forms conical tube and cylindrical tube, makes reducing type half grout sleeve, the bottom of reducing type half grout sleeve is the main body tube of equal diameters, the upper end of main body tube connects with the larger diameter end of conical tube, and the smaller diameter end of conical tube connects with cylindrical tube one end, the outer diameter D of cylindrical tube
2it is main body tube outer diameter D
11/5;
5. on main body tube, injected hole and slurry outlet is offered;
6. getting connecting reinforcement inserts in the cylindrical tube of reducing type half grout sleeve, upper die and lower die in extrusion die are placed on respectively the outer wall of cylindrical tube, pressure is applied to extrusion die, make the internal diameter of cylindrical tube diminish to connecting reinforcement close contact, upper die and lower die structure is identical, arranges arc groove in patrix;
7. by step 6. in be connected to reinforcing bar reducing type half grout sleeve insert in the mould of prefabricated units, flexible pipe is adopted to make injected hole and slurry outlet communicate with mold exterior respectively, reinforcing bar leans out prefabricated units, the main body tube lower end of reducing type half grout sleeve is concordant with the bottom face of prefabricated units, casting concrete is after maintenance, by needing the reinforcing bar on connecting building thing or the reinforcing bar on prefabricated units to insert in main body tube, after casting, complete connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510554194.4A CN105133795A (en) | 2015-05-28 | 2015-09-02 | Variable-diameter half grouting sleeve and construction method thereof |
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| CN201510281417 | 2015-05-28 | ||
| CN2015102814174 | 2015-05-28 | ||
| CN201510554194.4A CN105133795A (en) | 2015-05-28 | 2015-09-02 | Variable-diameter half grouting sleeve and construction method thereof |
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| CN105133795A true CN105133795A (en) | 2015-12-09 |
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Cited By (2)
| 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 |
| CN108930360A (en) * | 2018-04-29 | 2018-12-04 | 山东德建集团有限公司 | Exposed inversion reinforcing bar grout sleeve precast concrete column and construction method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205100437U (en) * | 2015-05-28 | 2016-03-23 | 山东万斯达建筑科技股份有限公司 | Half grout sleeve of diameter -variable |
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| GB1442565A (en) * | 1974-08-16 | 1976-07-14 | Nisso Mater Builders Kk | Joining of reinforcement members |
| CN201339274Y (en) * | 2008-12-30 | 2009-11-04 | 中国建筑第八工程局有限公司 | Sleeve type connecting piece |
| CN102071774A (en) * | 2009-11-23 | 2011-05-25 | 黑龙江宇辉新型建筑材料有限公司 | Insertion grouted reinforcing steel bar connecting sleeve and construction method thereof |
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| CN205100437U (en) * | 2015-05-28 | 2016-03-23 | 山东万斯达建筑科技股份有限公司 | Half grout sleeve of diameter -variable |
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- 2015-09-02 CN CN201520676046.5U patent/CN205100437U/en active Active
- 2015-09-02 CN CN201510554194.4A patent/CN105133795A/en active Pending
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| GB1442565A (en) * | 1974-08-16 | 1976-07-14 | Nisso Mater Builders Kk | Joining of reinforcement members |
| CN201339274Y (en) * | 2008-12-30 | 2009-11-04 | 中国建筑第八工程局有限公司 | Sleeve type connecting piece |
| CN102071774A (en) * | 2009-11-23 | 2011-05-25 | 黑龙江宇辉新型建筑材料有限公司 | Insertion grouted reinforcing steel bar connecting sleeve and construction method thereof |
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| CN104563396A (en) * | 2014-12-24 | 2015-04-29 | 中国建筑股份有限公司 | Pier-extruded and half-grouted steel bar sleeve, connecting structure and construction method |
| CN205100437U (en) * | 2015-05-28 | 2016-03-23 | 山东万斯达建筑科技股份有限公司 | Half grout sleeve of diameter -variable |
Cited By (2)
| 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 |
| CN108930360A (en) * | 2018-04-29 | 2018-12-04 | 山东德建集团有限公司 | Exposed inversion reinforcing bar grout sleeve precast concrete column and construction method |
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| Publication number | Publication date |
|---|---|
| CN205100437U (en) | 2016-03-23 |
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Application publication date: 20151209 |