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 PDF

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Publication number
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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China
Prior art keywords
steel strand
strand wires
extruded sleeve
extrusion ring
extruding
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CN201710264706.2A
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CN107035075B (en
Inventor
梁文昊
左海宁
黄颖
蒋业东
温朝臣
刘进
覃伯聿
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Liuzhou OVM Machinery Co Ltd
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Liuzhou OVM Machinery Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08Members specially adapted to be used in prestressed constructions
    • E04C5/12Anchoring devices
    • E04C5/125Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/14Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12Mounting of reinforcing inserts; Prestressing
    • E04G21/122Machines 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

Multilayer steel strand wires anchorage and its method for anchoring multilayer steel strand wires
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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JPH07189427A (en) * 1993-12-27 1995-07-28 Tokyo Seiko Co Ltd Anchorage construction of end of frp reinforcing material
JPH09170293A (en) * 1995-12-20 1997-06-30 Times Eng:Kk Anchorage device for steel tension material
JP2936476B1 (en) * 1998-04-10 1999-08-23 ブイ・エス・エル・ジャパン株式会社 Removal anchor
CN2329460Y (en) * 1998-06-26 1999-07-21 季金峰 Squeezing type ground tackle
CN1771399A (en) * 2002-07-22 2006-05-10 远程接合技术公司 Fastener for assembly and disassembly
CN202074032U (en) * 2011-05-13 2011-12-14 杭州新坐标科技股份有限公司 Stopper used for sealing hole
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Publication number Priority date Publication date Assignee Title
CN112343348A (en) * 2020-10-27 2021-02-09 李绍清 Angle connecting device for reinforcing steel bars

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