CN107035075A - Multilayer steel strand wires anchorage and its method for anchoring multilayer steel strand wires - Google Patents
Multilayer steel strand wires anchorage and its method for anchoring multilayer steel strand wires Download PDFInfo
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- CN107035075A CN107035075A CN201710264706.2A CN201710264706A CN107035075A CN 107035075 A CN107035075 A CN 107035075A CN 201710264706 A CN201710264706 A CN 201710264706A CN 107035075 A CN107035075 A CN 107035075A
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- steel strand
- strand wires
- extruded sleeve
- extrusion ring
- extruding
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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
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/122—Machines for joining reinforcing bars
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Ropes Or Cables (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of multilayer steel strand wires anchorage, including multistage extruded sleeve and n extrusion ring, each extrusion ring profile is cylinder internal and external threads shape or triangular-section helix, each extrusion ring diameter is different, length is identical or different, multistage extruded sleeve profile is cylindrical, endoporus is n-1 grade step through-holes, and extruded sleeve length is n extruding ring length sum, and the internal orifice of above-mentioned extrusion ring external diameter and extruded sleeve step through-hole is to be interference fitted;Before extruding, each cover wire cut-out of n-layer steel strand wires front end, multistage extruded sleeve is enclosed under the outside of the n-layer steel strand wires equipped with n extrusion ring, extruding anchoring status, each extrusion ring fragment is carved between the ectonexine steel strand wires of n-layer steel strand wires and multistage extruded sleeve, anchor n-layer steel strand wires;N is more than or equal to 2 arbitrary integers for being less than 5;The multilayer steel strand wires meet respective standard with anchorage efficiency of anchorage, steel strand wires elongation percentage, can really realize steel strand anchoring section intensity:Its construction method is simple, facilitate site operation.
Description
Technical field
The present invention relates to a kind of steel strand wires anchorage, particularly a kind of multilayer steel strand wires anchorage and its for anchoring multilayer
The method of steel strand wires.
Background technology
It is using extruded sleeve anchoring steel strand wires mode at present:Straight hole places Extruding spring in extruded sleeve, steel strand wires is penetrated crowded
Stage clip and extruded sleeve, because Extruding spring respectively encloses the triangular-section summit of steel wire, constitute the helical tooth of Extruding spring inwall, pass through
After extruder extruding, Extruding spring fragment is carved into steel strand wires to ensure anchor steel strand wires;But the extruded sleeve is in anchoring multilayer
(Number of plies n > 2)Anchoring property is very undesirable during steel strand wires, after extruding, and Extruding spring can not be carved into steel wire of internal layer, causes extruding
The extruded sleeve manufactured afterwards steel strand wires cover wire in stretching process is easily bitten, and steel wire of internal layer easily slides, therefore causes
Anchoring efficiency is reduced, it is impossible to ensure efficiency of anchorage.
The content of the invention
A kind of method it is an object of the invention to provide multilayer steel strand wires anchorage and its for anchoring multilayer steel strand wires,
It when anchoring multilayer steel strand wires with anchorage using the multilayer steel strand wires, can prolong the efficiency of anchorage of multilayer steel strand wires, steel strand wires
The rate of stretching meets respective standard, can really realize steel strand anchoring section intensity, improve efficiency of construction, its installation method facilitates scene to apply
Work, system easy to control the quality preferably solves the above mentioned problem of prior art presence.
The technical scheme solved the above problems is:A kind of multilayer steel strand wires anchorage, including:Extruded sleeve and extrusion ring, institute
It is multistage extruded sleeve to state extruded sleeve, and the extrusion ring has n, and each extrusion ring profile is cylinder internal and external threads shape or triangle
Section helix, each extrusion ring diameter is different, length is identical or different, and the multistage extruded sleeve profile is cylinder
Shape, endoporus is n-1 grades of step through-holes, and extruded sleeve length is n extruding ring length sum, above-mentioned extrusion ring external diameter and extruded sleeve
The internal orifice of step through-hole is interference fit;Before extruding, each cover wire cut-out of n-layer steel strand wires front end, multistage extruded sleeve is enclosed on
Under the outside of n-layer steel strand wires equipped with n extrusion ring, extruding anchoring status, each extrusion ring fragment is carved into the interior of n-layer steel strand wires
Between outer layer steel strand wires and multistage extruded sleeve, anchor n-layer steel strand wires;N is more than or equal to 2, the arbitrary integer less than 5.N's takes
Value:N is 2,3,4 or 5.
The multilayer steel strand wires are with the further technical scheme of anchorage:The extrusion ring has 2, two extruding ring diameters
Of different sizes, length is identical or different, and the multistage extruded sleeve is multistage extruded sleeve I, and its endoporus is 1 grade of step through-hole, small end
The a diameter of Φ B of internal orifice, length are L1, the big end a diameter of Φ C of internal orifice, length are L2, the multistage length of extruded sleeve I is La=L1+ L2;
Extrusion ring profile is triangular-section helix, and the external diameter of extrusion ring I is that Φ E, length are L1, the external diameter of extrusion ring II is Φ F, length
Spend for L2, the interference fit of above-mentioned extrusion ring external diameter and the internal orifice of extruded sleeve step through-hole is:Φ E < Φ B;Φ F < Φ C, are squeezed
Before pressure, the cover wire cut-out of 2 layers of steel strand wires front end, multistage extruded sleeve is enclosed on the outer of 2 layers of steel strand wires equipped with 2 extrusion rings
Under face, extruding anchoring status, each extrusion ring fragment is carved between the ectonexine steel strand wires and multistage extruded sleeve of 2 layers of steel strand wires,
2 layers of steel strand wires of anchor.
The further technical scheme of the multilayer steel strand wires anchorage or:The extrusion ring has 3, and 3 extrusion rings are straight
Footpath is of different sizes, length is identical or different, and the multistage extruded sleeve is multistage extruded sleeve II, and its endoporus is 2 grades of step through-holes, small
It is L to hold a diameter of Φ B of internal orifice, length1, the secondary a diameter of Φ C of small end internal orifice, length are L2, the big end a diameter of Φ D of internal orifice, length are
L3, the multistage length of extruded sleeve II is Lb=L1+ L2+ L3;Extrusion ring profile is triangular-section helix, the external diameter of extrusion ring I
It is L for Φ E, length1;The profile of extrusion ring II is that triangular-section helix, the external diameter of extrusion ring II are that Φ F, length are L2 ,
The external diameter of extrusion ring III is that Φ G, length are L3;The interference fit of above-mentioned extrusion ring external diameter and the internal orifice of extruded sleeve step through-hole is:
Φ E < Φ B;Φ F < Φ C, Φ G < Φ D, before extruding, the cover wire cut-out of 3 layers of steel strand wires front end, multistage extruded sleeve is enclosed on
Under the outside of 3 layers of steel strand wires equipped with 3 extrusion rings, extruding anchoring status, each extrusion ring fragment is carved into the interior of 3 layers of steel strand wires
Between outer layer steel strand wires and multistage extruded sleeve, 3 layers of steel strand wires of anchor.
Related another technical scheme is:A kind of multilayer steel strand wires anchorage is used for the method for anchoring multilayer steel strand wires, it
It is, by extruding the method that anchorage style realizes anchoring multilayer steel strand wires, to squeeze using the above-mentioned multilayer steel strand wires anchorage of the present invention
Before pressure, first each cover wire in n-layer steel strand wires front end is cut off, then successively by n extrusion ring from the steel strand after cut-out cover wire
Line front end is penetrated, during extruding, and extruded sleeve first loaded into jack unit, then the extrusion ring coordinated by n-layer steel strand wires and with it is from top
The extrusion die of pressure device is passed through, and is passed after finally being penetrated again from extruded sleeve large port from portlet, and manual turn-knob extruded sleeve makes to squeeze
Gland LnThe embedded extrusion ring n, extruded sleeve L of section1The embedded extrusion ring I of section, jack unit moves pressure end by by hydraulic means
The extruded sleeve for penetrating steel strand wires squeezes through extrusion die endoporus, and after extruding anchoring, extruded sleeve outside dimension Φ A crimps are Φ H, are squeezed
Pressure ring I, extrusion ring II ... extrusion ring n fragments are carved into ectonexine steel strand wires and multistage extruded sleeve, it is ensured that anchor composite steel is twisted
Line;The hole size of the extrusion die of above-mentioned jack unit is Φ H, and extruded sleeve excircle dimension is Φ A, Φ A > Φ H, n value model
Enclosing is:N is 2,3,4 or 5.
A kind of multilayer steel strand wires anchorage is used for comprising the following steps that for the method for anchoring multilayer steel strand wires:
Before A, the extruding of n-layer steel strand wires, first n-layer steel strand wires front end outermost layer steel wire is cut off, cut-out steel wire length is L1, then successively
Each layer steel wire of cut-out time outer layer;
B, by n extrusion ring from cut-out cover wire after multilayer steel strand wires front end penetrate successively;
C, extruded sleeve loaded into jack unit, the extrusion die with jack unit, pressure end is concentric;
D, the multilayer steel strand wires for putting on n extrusion ring are penetrated from the extruding die orifice of jack unit, finally from extruded sleeve large port
Penetrate and passed from portlet, by multilayer steel strand wires top to pressure end;
E, manual turn-knob have penetrated the extruded sleeve of multilayer steel strand wires and n extrusion ring, make the L of extruded sleeve1The embedded extrusion ring I of section,
The L of extruded sleevenEmbedded n-th of the extrusion ring of section;
F, pressurizing unit move pressure end by hydraulic means and squeeze through extrusion die endoporus by the extruded sleeve for penetrating multilayer steel strand wires is counter;
After extruding, extruded sleeve outside dimension Φ A crimps are Φ H;By n extrusion ring fragmentation of squeezing action, fragment is carved into multilayer
Between each layer of steel strand wires and multistage extruded sleeve.
Due to using above-mentioned technical proposal, the multilayer steel strand wires anchorage of the present invention and its for anchoring multilayer steel strand wires
Method has the characteristics that and beneficial effect:
First, anchoring effect is good, and efficiency of anchorage, steel strand wires elongation percentage meet respective standard, can really realize steel strand anchoring
Duan Qiangdu:
The multilayer steel strand wires of the present invention are multistage extruded sleeve with the extruded sleeve of anchorage, and the extrusion ring has n, outside each extrusion ring
Shape is cylinder internal and external threads shape or triangular-section helix, each extrusion ring diameter is different, length is identical or
Difference, the multistage extruded sleeve profile is cylindrical, and endoporus is n-1 grades of step through-holes, and extruded sleeve length is n extrusion ring
The internal orifice of length sum, above-mentioned extrusion ring external diameter and extruded sleeve step through-hole is interference fit;Extrude under anchoring status, each is squeezed
Pressure ring fragment is carved between the ectonexine steel strand wires of n-layer steel strand wires and multistage extruded sleeve, it is ensured that anchor multilayer steel strand wires.
2nd, the multilayer steel strand wires anchorage and its method of multilayer steel strand wires is simple, facilitate site operation, quality for anchoring
It is easy to control:
It is to make in advance with the multistage extruded sleeve of anchorage, extrusion ring 1, extrusion ring 2, extrusion ring n that this patent, which provides multilayer steel strand wires,
Work is easy to standardized production, and its installation method is easy, and before the extruding of multilayer steel strand wires, multilayer steel strand wires front end cover wire is cut
Penetrated after a disconnected segment distance from extruded sleeve large port, extrusion ring is loaded between extruded sleeve and steel strand wires.During extruding, extruding suit
Enter pressurizing unit, pressurizing unit moves pressure end by hydraulic means and the extruded sleeve for penetrating steel strand wires is squeezed through into extrusion die endoporus,
After extruding, extruded sleeve crimp is carved into multilayer steel strand wires and extruded sleeve, it is ensured that anchor is more by extrusion ring fragment after extruding
Layer steel strand wires, both facilitate site operation, and quality is again easy to control.
Below, in conjunction with the accompanying drawings and embodiments to the present invention multilayer steel strand wires anchorage and its for anchoring multilayer steel strand wires
The technical characteristic of method be further described.
Brief description of the drawings
Fig. 1~Fig. 3 is the multilayer steel strand wires anchor device structure schematic diagram of the embodiment of the present invention one;
Fig. 1 is the multistage extruded sleeve structural representation of the multilayer steel strand wires anchorage of embodiment one;
Fig. 2 is the structural representation of extrusion ring I of multilayer steel strand wires anchorage;
Fig. 3 is the structural representation of extrusion ring II of multilayer steel strand wires anchorage;
Fig. 4~Fig. 7 is that the multilayer steel strand wires anchorage of the embodiment of the present invention one is used for the procedure signal for anchoring 2 layers of steel strand wires
Figure:
Fig. 4 is 2 layers of steel strand wires schematic diagram for having cut off cover wire;
Fig. 5 is 2 layers of steel strand wires schematic diagram of the extrusion ring for the multilayer steel strand wires anchorage for being mounted with embodiment one;
Fig. 6 is extrusion process schematic diagram;
Fig. 7 is 2 layers of steel strand anchoring schematic diagram after the multilayer steel strand anchorage extruding anchoring using embodiment one;
Fig. 8~Figure 11 is the multilayer steel strand wires anchor device structure of the embodiment of the present invention two and the method for anchoring 3 layers of steel strand wires
Process schematic:
Fig. 8 is the multistage extruded sleeve structural representation of the multilayer steel strand wires anchorage of embodiment two;
Fig. 9-1~Fig. 9-3 is 3 extrusion ring structural representations of the multilayer steel strand wires anchorage of embodiment two;
Fig. 9-1:Extrusion ring I, Fig. 9-2:Extrusion ring II;Fig. 9-3:Extrusion ring III;
Figure 10 is 3 layers of steel strand wires schematic diagram of the extrusion ring for the multilayer steel strand wires anchorage for being mounted with embodiment two;
Figure 11 is 3 layers of steel strand anchoring schematic diagram after the multilayer steel strand anchorage extruding anchoring using embodiment two.
In figure:
1- jack units, 2- pressure ends, 3- extrusion rings I, 4- extrusion rings II, 5a- multistage extruded sleeves I, 5b- multistage extruded sleeves
II, 6- extrusion die, 7a-2 layers of steel strand wires, 7b-3 layers of steel strand wires, 8- extrusion rings III, remaining mark is referring to embodiment.
Φ A are labeled as Φ Aa/ Φ Ab, Φ H and are labeled as Φ Ha/ Φ Hb.
Embodiment
A kind of multilayer steel strand wires anchorage, including:Extruded sleeve and extrusion ring, the extruded sleeve are multistage extruded sleeve, described
Extrusion ring has n, and each extrusion ring profile is cylinder internal and external threads shape or triangular-section helix, and each extrusion ring is straight
Footpath is of different sizes, length is identical or different, and the multistage extruded sleeve profile is cylindrical, and endoporus is n-1 grades of step through-holes,
Extruded sleeve length is n extruding ring length sum, and the internal orifice for having above-mentioned extrusion ring external diameter and extruded sleeve step through-hole is matched somebody with somebody for interference
Close;Before extruding, the cover wire cut-out of n-layer steel strand wires front end, multistage extruded sleeve is enclosed on the n-layer steel strand wires equipped with n extrusion ring
Outside, under extruding anchoring status, each extrusion ring fragment be carved into the ectonexine steel strand wires of n-layer steel strand wires and multistage extruded sleeve it
Between, anchor n-layer steel strand wires;N span is:N is 2,3,4 or 5.
It is different according to the number of plies of multilayer steel strand wires, there is following different embodiment:
Embodiment one:
A kind of multilayer steel strand wires anchorage for being used to anchor 2 layers of steel strand wires, as shown in FIG. 1 to 3, the multilayer steel strand wires anchorage
Including multistage I 5a and 2 extrusion ring of extruded sleeve;
As shown in figure 1, the multistage extruded sleeve is the multistage 5a of extruded sleeve I, its profile is cylindrical, and endoporus 51a is 1 grade of step
Through hole, a diameter of Φ B of small end internal orifice 511, length are L1, the big end a diameter of Φ C of internal orifice 512, length are L2, the multistage 5a of extruded sleeve I
Length is La=L1+ L2;Described two extrusion ring diameters are different, length is different, and extrusion ring profile is triangular-section spiral shell
Coil shape, the external diameter of extrusion ring I 3 is that Φ E, length are L1;The external diameter of extrusion ring II 4 is that Φ F, length are L2, above-mentioned extrusion ring external diameter
Interference fit with the internal orifice of extruded sleeve step through-hole is:Φ E < Φ B;Φ F < Φ C;
Before extruding, the cover wire cut-out of 2 layers of steel strand wires front end, multistage extruded sleeve is enclosed on 2 layers of steel strand wires equipped with 2 extrusion rings
Outside(Referring to Fig. 4, Fig. 5), extrude under anchoring status, each extrusion ring fragment is carved into the ectonexine steel strand wires of 2 layers of steel strand wires
Between multistage extruded sleeve, 2 layers of steel strand wires of anchor.
Embodiment two:
A kind of multilayer steel strand wires anchorage for being used to anchor 3 layers of steel strand wires, as shown in figures s-11, the multilayer steel strand wires anchorage
Including multistage II 5b and 3 extrusion ring of extruded sleeve;
As shown in figure 8, the multistage extruded sleeve is the multistage 5b of extruded sleeve II, its profile is that cylindrical, endoporus 51b are 2 grades of platforms
Rank through hole, a diameter of Φ B of small end internal orifice 511, length are L1, the secondary a diameter of Φ C of small end internal orifice 512, length are L2, internal orifice is held greatly
513 a diameter of Φ D, length are L3, the multistage 5b length of extruded sleeve II is Lb=L1+ L2+ L3;The extrusion ring has 3, and 3 are squeezed
Pressure ring diameter is different, length is identical or different, and extrusion ring profile is triangular-section helix, and the external diameter of extrusion ring I 3 is
Φ E, length are L1;The external diameter of extrusion ring II 4 is that Φ F, length are L2, the external diameter of extrusion ring III 8 is that Φ G, length are L3(Referring to figure
9-1~Fig. 9-3);The internal orifice interference fit relation of above-mentioned extrusion ring external diameter and extruded sleeve step through-hole is:Φ E < Φ B;Φ F <
Φ C, Φ G < Φ D, before extruding, the outermost layer of 3 layers of steel strand wires front end and time cover wire are cut off successively, the multistage 5b of extruded sleeve II
It is enclosed on the outside of 3 layers of steel strand wires equipped with 3 extrusion rings(Referring to Figure 10), extrude under anchoring status, each extrusion ring fragment is carved
Between the ectonexine steel strand wires and multistage extruded sleeve that enter 3 layers of steel strand wires, 3 layers of steel strand wires of anchor(Referring to Figure 11).
Embodiment three
A kind of multilayer steel strand wires anchorage is used for the method for anchoring multilayer steel strand wires, and it is to use embodiment one or the institute of embodiment two
State multilayer steel strand wires anchorage and realize the method for anchoring multilayer steel strand wires by extruding anchorage style, before extruding, first twist n-layer steel
Line front end outermost layer and time cover wire are cut off successively, then successively by n extrusion ring before the steel strand wires after cut-out cover wire
End is penetrated, during extruding, and extruded sleeve first is loaded into pressurizing unit, then the extrusion ring coordinated by n-layer steel strand wires and with it is filled from extruding
The extrusion die put is passed through, and is finally penetrated and is passed from portlet from extruded sleeve large port again, and manual turn-knob extruded sleeve makes extruded sleeve
LnSection embedded n-th of extrusion ring n, extruded sleeve L1The embedded extrusion ring I of section, jack unit 1 moves pressure end 2 by hydraulic means
The extruded sleeve for having penetrated steel strand wires is squeezed through into the endoporus of extrusion die 6, after extruding anchoring, extruded sleeve outside dimension Φ A crimps are
Φ H, extrusion ring I, extrusion ring II ... extrusion ring n fragments are carved into ectonexine steel strand wires and multistage extruded sleeve, it is ensured that anchor is more
Layer steel strand wires;The hole size of the extrusion die of above-mentioned pressurizing unit is Φ H, and extruded sleeve excircle dimension is Φ A, Φ A > Φ H;N's
Span is:N is 2,3,4 or 5.
This method is comprised the following steps that(The explanation by taking embodiment one as an example):
Before A, 2 layers of steel strand wires extruding, first 2 layers of steel strand wires 7a front ends outermost layer steel wire are cut off, cut-out steel wire length is L1(Referring to
Fig. 4);
B, by 2 extrusion rings, i.e. extrusion ring I 3, extrusion ring II 4 is penetrated successively from 2 layers of steel strand wires front end after cut-out cover wire
(Referring to Fig. 5);
C, the multistage 5a of extruded sleeve I loaded into pressurizing unit, the extrusion die 6 with pressurizing unit, pressure end 2 is concentric(Referring to Fig. 6);
D, the multilayer steel strand wires for putting on 2 extrusion rings are penetrated from the die orifice of extrusion die 6 of pressurizing unit, finally from the big end of extruded sleeve
Mouth is penetrated to be passed from portlet, by 2 layers of steel strand wires small end top to pressure end 2(Referring to Fig. 6);
E, manual turn-knob have penetrated the extruded sleeve of 2 layers of steel strand wires and 2 extrusion rings, make the L of extruded sleeve1The embedded extrusion ring of section
I, the L of extruded sleeve2Embedded 2nd extrusion ring of section;
F, jack unit 1 by hydraulic means move pressure end 2 by the 5a of multistage extruded sleeve I for penetrating multilayer steel strand wires it is counter squeeze through it is crowded
Pressing mold endoporus;After extruding, extruded sleeve outside dimension Φ Aa crimps are Φ Ha;It is broken by 2 extrusion ring fragmentations of squeezing action
Piece is carved between each layer of composite steel twisted wire and multistage extruded sleeve(Referring to Fig. 7).
As one kind conversion of the embodiment of the present invention, extruding anchor is passed through using multilayer steel strand wires anchorage described in embodiment two
Gu mode realizes that the specific steps of the method for anchoring multilayer steel strand wires are identical with the step of embodiment one, institute's difference is, adopts
Extruded sleeve is the 5b of multistage extruded sleeve II that its endoporus 51b is 2 grades of step through-holes, and the extrusion ring has 3;Before extruding, 3 layers
The cover wire of steel strand wires front end cuts off one section successively, and the multistage 5b of extruded sleeve II is enclosed on 3 layers of steel strand wires equipped with 3 extrusion rings
Outside(Referring to Figure 10), after extruding, extruded sleeve outside dimension Φ Ab crimps are Φ Hb(Referring to Figure 11);Extrude anchoring status
Under, each extrusion ring fragment is carved between the ectonexine steel strand wires and multistage extruded sleeve of 3 layers of steel strand wires, 3 layers of steel strand wires of anchor.
Claims (5)
1. a kind of multilayer steel strand wires anchorage, including:Extruded sleeve and extrusion ring, it is characterised in that:The extruded sleeve squeezes to be multistage
Gland, the extrusion ring has a n, and each extrusion ring profile is cylinder internal and external threads shape or triangular-section helix, respectively
Individual extrusion ring diameter is different, length is identical or different, and the multistage extruded sleeve profile is cylindrical, and endoporus is n-1 grades
Step through-hole, extruded sleeve length is n extruding ring length sum, and the internal orifice of above-mentioned extrusion ring external diameter and extruded sleeve step through-hole is
Interference fit;Before extruding, each cover wire cut-out of n-layer steel strand wires front end, multistage extruded sleeve is enclosed on the n equipped with n extrusion ring
Under the outside of layer steel strand wires, extruding anchoring status, each extrusion ring fragment is carved into the ectonexine steel strand wires and multistage of n-layer steel strand wires
Between extruded sleeve, anchor n-layer steel strand wires;N span is:N is 2,3,4 or 5.
2. multilayer steel strand wires anchorage according to claim 1, it is characterised in that:The extrusion ring has 2, two extruding
Ring diameter is of different sizes, length is identical or different, and the multistage extruded sleeve is multistage extruded sleeve I(5a), its profile is cylinder
Shape, endoporus(51a)For 1 grade of step through-hole, small end internal orifice(511)A diameter of Φ B, length are L1, internal orifice is held greatly(512)It is a diameter of
Φ C, length are L2, multistage extruded sleeve I(5a)Length is La=L1+ L2;Extrusion ring profile is triangular-section helix, is squeezed
Pressure ring I(3)External diameter is that Φ E, length are L1, extrusion ring II(4)External diameter is that Φ F, length are L2, above-mentioned extrusion ring external diameter is with extruding
Covering the interference fit of the internal orifice of step through-hole is:Φ E < Φ B;Φ F < Φ C, before extruding, the cover wire of 2 layers of steel strand wires front end
Cut-out, multistage extruded sleeve is enclosed under the outside of 2 layers of steel strand wires equipped with 2 extrusion rings, extruding anchoring status, and each extrusion ring is broken
Piece is carved between the ectonexine steel strand wires and multistage extruded sleeve of 2 layers of steel strand wires, 2 layers of steel strand wires of anchor.
3. multilayer steel strand wires anchorage according to claim 1, it is characterised in that:The extrusion ring has 3,3 extruding
Ring diameter is of different sizes, length is identical or different, and the multistage extruded sleeve is multistage extruded sleeve II(5b), its profile is cylinder
Shape, endoporus(51b)For 2 grades of step through-holes, small end internal orifice(511)A diameter of Φ B, length are L1, secondary small end internal orifice(512)Diameter
It is L for Φ C, length2, internal orifice is held greatly(513)A diameter of Φ D, length are L3, multistage extruded sleeve II(5b)Length is Lb=L1+
L2+ L3;Extrusion ring profile is triangular-section helix, extrusion ring I(3)External diameter is that Φ E, length are L1;Extrusion ring II(4)
Profile is triangular-section helix, extrusion ring II(4)External diameter is that Φ F, length are L2, extrusion ring III(8)External diameter is Φ
G, length are L3;The interference fit of above-mentioned extrusion ring external diameter and the internal orifice of extruded sleeve step through-hole is:Φ E < Φ B;Φ F < Φ
C, Φ G < Φ D, before extruding, the cover wire cut-out of 3 layers of steel strand wires front end, multistage extruded sleeve is enclosed on 3 equipped with 3 extrusion rings
Under the outside of layer steel strand wires, extruding anchoring status, each extrusion ring fragment is carved into the ectonexine steel strand wires and multistage of 3 layers of steel strand wires
Between extruded sleeve, 3 layers of steel strand wires of anchor.
4. a kind of multilayer steel strand wires anchorage is used for the method for anchoring multilayer steel strand wires, it is characterised in that:It is will using right
Multilayer steel strand wires anchorage described in 1 is asked to realize the method for anchoring multilayer steel strand wires by extruding anchorage style, before extruding, first by n
Each cover wire cut-out in layer steel strand wires front end, then successively penetrate n extrusion ring from the steel strand wires front end cut off after cover wire,
During extruding, extruded sleeve is first loaded into jack unit, then the extrusion ring coordinated by n-layer steel strand wires and with it is from the extruding of jack unit
Mould is passed through, and is passed after finally being penetrated again from extruded sleeve large port from portlet, and manual turn-knob extruded sleeve makes extruded sleeve LnDuan Qian
Enter extrusion ring n, extruded sleeve L1The embedded extrusion ring I of section, jack unit(1)Pressure end is moved by hydraulic means(2)It will penetrate
The extruded sleeve of steel strand wires squeezes through extrusion die(6)Endoporus, after extruding anchoring, extruded sleeve outside dimension Φ A crimps are Φ H, are squeezed
Pressure ring I, extrusion ring II ... extrusion ring n fragments are carved into ectonexine steel strand wires and multistage extruded sleeve, it is ensured that anchor composite steel is twisted
Line;The hole size of the extrusion die of above-mentioned jack unit is Φ H, and extruded sleeve excircle dimension is Φ A, Φ A > Φ H, n value model
Enclosing is:N is 2,3,4 or 5.
5. a kind of multilayer steel strand wires anchorage is used for the method for anchoring multilayer steel strand wires according to claim 4, its feature exists
In:This method is comprised the following steps that:
Before A, the extruding of n-layer steel strand wires, first n-layer steel strand wires front end outermost layer steel wire is cut off, cut-out steel wire length is L1, then successively
Each layer steel wire of cut-out time outer layer;
B, by n extrusion ring from cut-out cover wire after multilayer steel strand wires front end penetrate successively;
C, extruded sleeve loaded into jack unit, the extrusion die with jack unit, pressure end is concentric;
D, the multilayer steel strand wires for putting on n extrusion ring are penetrated from the extruding die orifice of jack unit, finally from extruded sleeve large port
Penetrate and passed from portlet, by multilayer steel strand wires top to pressure end;
E, manual turn-knob have penetrated the extruded sleeve of multilayer steel strand wires and n extrusion ring, make the L of extruded sleeve1The embedded extrusion ring I of section,
The L of extruded sleevenEmbedded n-th of the extrusion ring of section;
F, pressurizing unit move pressure end by hydraulic means and squeeze through extrusion die endoporus by the extruded sleeve for penetrating multilayer steel strand wires is counter;
After extruding, extruded sleeve outside dimension Φ A crimps are Φ H;By n extrusion ring fragmentation of squeezing action, fragment is carved into multilayer
Between each layer of steel strand wires and multistage extruded sleeve.
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Cited By (1)
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CN112343348A (en) * | 2020-10-27 | 2021-02-09 | 李绍清 | Angle connecting device for reinforcing steel bars |
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