CN107034784A - Prestress wire p-type anchor stopping means - Google Patents
Prestress wire p-type anchor stopping means Download PDFInfo
- Publication number
- CN107034784A CN107034784A CN201710194568.5A CN201710194568A CN107034784A CN 107034784 A CN107034784 A CN 107034784A CN 201710194568 A CN201710194568 A CN 201710194568A CN 107034784 A CN107034784 A CN 107034784A
- Authority
- CN
- China
- Prior art keywords
- fixing end
- steel strand
- strand wires
- type
- anchor slab
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001125 extrusion Methods 0.000 claims abstract description 36
- 238000010276 construction Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 238000009434 installation Methods 0.000 claims description 10
- 239000011440 grout Substances 0.000 claims description 5
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
- E01D2101/32—Metal prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of prestress wire p-type anchor stopping means, including fixing end anchor slab, extrusion head, banking stop and caging bolt；Banking stop is connected and fixed with the fixing end anchor slab of fixing end p-type anchorage by caging bolt, and extrusion head is limited in the space being located between fixing end anchor slab and banking stop.Simple in construction, reasonable in design, easy construction of the invention and construction cost is low, good mechanical performance, using effect are good, it can efficiently solve between existing p-type extruding anchor fixing end anchor slab and extrusion head that gap is big, connect not close, fixing end anchor slab is without the constraint various problems such as slidably.
Description
Technical field
The present invention relates to a kind of prestress wire p-type anchor stopping means.
Background technology
As economic construction speed is accelerated, the increasing of communications and transportation road load, existing communications and transportation road is difficult to meet
Transport capacity required for growing economic pace, therefore there is large-scale construction of road and bridge, particularly some large spans
Bridge sets up thee-direction prestressed system, i.e. longitudinal prestressing, vertical prestressing, transverse prestress.Among three kinds of prestressing force, erect
To prestressing force, transverse prestress frequently with one-end tension mode, it is necessary to use p-type extruding anchor.The p-type anchor of OVM companies production
Tool is divided into fixing end p-type anchorage according to the difference of structure type and fixing end justifies p-type anchorage.P-type Extrusion anchor ground tackle is in steel strand wires
Head puts extruded sleeve, is extruded by special-purpose machines and tools so that extruded sleeve, which is produced, to be bonded steel strand wires after plastic deformation and clamp, and steel is twisted
A relay for line passes to component by extruded sleeve by special backing plate.Due to its inconvenient tensioning, therefore frequently as fixing end anchorage
Used.At present prestressing force p-type extruding anchor construction among, be typically directly by spacer dimple pipe, constraint circle and spiral bar,
Fixed anchor slab and the steel strand wires with extrusion head are assembled according to certain order, and are fixed between anchor slab and extrusion head not
Have and reliably connect, it is impossible to ensure that extrusion head closely presses close to fixed anchor slab, it will bring serious quality results, such as because between
Local Cracking destruction etc. is caused away from inadequate.
To sum up, the problem of p-type anchorage generally existing the following aspects used at present：1) between constraint circle and fixed anchor slab
Mounting distance can not meet the requirement of parameter B (min) in technical requirements；2) install rear p-type anchor extrusion head and fixed anchor slab it
Between be loose, the distance for generally having one section, it is impossible to meet the purpose being close in specification.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of prestress wire p-type anchor stopping means.
The invention solves the problems that another technical problem be to provide a kind of applying for prestress wire p-type anchor stopping means
Work method.
For prestress wire p-type anchor stopping means, the technical solution adopted by the present invention is, including fixing end anchor slab,
Extrusion head, banking stop and caging bolt；Banking stop is connected and consolidated with the fixing end anchor slab of fixing end p-type anchorage by caging bolt
It is fixed, and extrusion head is limited in the space being located between fixing end anchor slab and banking stop.
Preferably, banking stop is circular or square stalloy, the stalloy is provided with caging bolt mounting hole site.
Preferably, extrusion head is by putting the steel strand wires of extruded sleeve by special-purpose machines and tools so that extruded sleeve produces plastic deformation
After bond steel strand wires and formed.
For the construction method of prestress wire p-type anchor stopping means, the technical solution adopted by the present invention is, including with
Lower step：
(1) extruding of upper fixing end p-type anchorage is covered on steel strand wires head in fixing end p-type anchorage installation steel strand wires first
Set；
(2) steel strand wires for putting extruded sleeve are extruded with special-purpose machines and tools, produces extruded sleeve and steel strand is bonded after plastic deformation
Line and form extrusion head；When extruded sleeve is by extrusion die, MTP value is between 25~35MPa, it is desirable to which bottom is twisted with steel
Line is nested, and closely without pit, extrusion spring should be entirely embedded between extruded sleeve and steel strand wires, and length and external diameter after extruding
Producer's set-point should be met, outside is answered smooth flawless；
(3) it is fixing end p-type anchorage is assembled successively；
(4) bellows, constraint circle and the spiral bar of fixing end p-type anchorage are installed, the steel strand wires of extruded sleeve will be loaded onto successively
Penetrate fixing end anchor slab mounting hole site, and by steel strand wires are single or whole beam passes through bellows, installation is had good positioning fixing end anchor slab；
(5) banking stop is installed, banking stop is arranged on p-type anchor end successively, fixing end anchor slab is passed through with caging bolt
Mounting hole and banking stop are fixed by nut, it is ensured that the mounting distance between constraint circle and fixing end anchor slab meets mounting technique will
Ask and extrusion head should be close to fixing end anchor slab；
(6) finally the grout outlet of fixing end p-type anchorage is installed in position and channel seal is carried out, in order to avoid pour
Spillage enters bellows during concrete.
The beneficial effects of the invention are as follows：
Simple in construction, reasonable in design, easy construction and construction cost is low, good mechanical performance, using effect are good, Neng Gouyou
Gap is big between the existing p-type extruding anchor fixing end anchor slab of effect ground solution and extrusion head, connect not close, and fixing end anchor slab is without constraint
The various problems such as slidably.
Brief description of the drawings
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of prestress wire p-type anchor stopping means embodiment of the present invention.
Marked in figure：1- bellowss, 2- spiral bars, 3- constraint circles, 4- grout outlets, 5- steel strand wires, 6- fixing end anchor slabs, 7-
Extrusion head, 8- banking stops, 9- caging bolts.
Embodiment
Fixing end p-type anchorage is by bellows 1, spiral bar 2, constraint circle 3, grout outlet 4, extrusion spring and extruding set group
Into.
Extruded by special-purpose machines and tools, extruded sleeve forms extrusion head 7 in the front end of the steel strand wires 5 of fixing end p-type anchorage.
As shown in figure 1, when mounted, limited bit slice 8, caging bolt 9 are refilled on the basis of fixing end p-type anchorage.
Banking stop 8 is made up of the thick stalloys of 1~2mm, and is cut into and met size, in the cutting of middle correct position
Pore-forming.Caging bolt 9 is diameter about 5mm, length about 8cm slender bolt.Banking stop 8 is arranged on fixing end P during installation
The extrusion head front end of type anchorage, and the fixing end that fixing end p-type anchor is fixed on after the mounting hole of banking stop is passed through with caging bolt 9
On anchor slab 6 so that extrusion head is located between fixing end anchor slab and banking stop.
The construction method of prestress wire fixing end p-type anchor stopping means, comprises the following steps：
(1) extrusion spring and extruded sleeve are covered respectively on the head of steel strand wires first, and extruded sleeve is mounted in the end of steel hinge line 5
Portion；
(2) steel strand wires for putting extruded sleeve are extruded with special-purpose machines and tools, produces extruded sleeve and steel strand is bonded after plastic deformation
Line and form extrusion head.When being pressed through extrusion die, MTP value is between 25~35MPa, it is desirable to bottom and steel strand wires
Nested closely without pit, extrusion spring should be entirely embedded between extruded sleeve and steel strand wires, and length and external diameter should after extruding
Meet producer's set-point, outside is answered smooth flawless.
(3) it is fixing end p-type anchorage is assembled successively according to Fig. 1 examples；
(4) spacer dimple pipe 1, constraint circle 3 and spiral bar 2 are installed, the steel strand wires 5 for having extruded extrusion head penetrated successively solid
Mounting hole site on fixed end anchor slab 6, and by steel strand wires are single or whole beam passes through bellows, installation is had good positioning fixing end anchor slab；
(5) stopping means is installed, banking stop 9 is arranged on p-type anchor end successively, and is fixed with caging bolt 8, really
The mounting distance protected between constraint circle 3 and fixing end anchor slab 6, which must is fulfilled for installation specification and extrusion head, should be close to fix
Hold anchor slab；
(6) finally grout outlet 4 is installed in position and channel seal is carried out, in case spillage enters during casting concrete
Enter bellows 1.
Compared with prior art, the present embodiment has advantages below：
1. it is simple in construction, reasonable in design and construction cost is relatively low.
2. it is good from heavy and light, stress performance, it can effectively solve the problem that current p-type extruding anchor fixes anchor slab and extrusion head connection is not tight
It is close, apertured problem.
3. easy construction and using effect is good, the sheet metal required for the present apparatus is easy to process to be obtained.
4. pair original device not damaged, it is only necessary to which newly-increased feeder apparatus is reliably connected slender bolt.
5. it is applied widely, transverse prestress, the p-type extruding anchor of vertical prestressing of one-end tension can be effectively applicable to
In work progress.
The present embodiment is fixed p-type anchor end to prestress wire using stopping means and limited, it is easy to so that about
Mounting distance meets installation specification between beam circle and fixing end anchor slab, and allows extrusion head closely to press close to fixed anchor
Plate so that work efficiency is improved significantly, construction cost is controlled very well.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within the modifications, equivalent substitutions and improvements made etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (4)
1. prestress wire p-type anchor stopping means, including fixing end anchor slab and extrusion head, it is characterised in that：Also include spacing
Piece and caging bolt；The banking stop is connected and fixed with the fixing end anchor slab of fixing end p-type anchorage by caging bolt, and will
Extrusion head limitation is located in the space between fixing end anchor slab and banking stop.
2. prestress wire p-type anchor stopping means according to claim 1, it is characterised in that：The banking stop is circle
Shape or square stalloy, the stalloy are provided with caging bolt mounting hole site.
3. prestress wire p-type anchor stopping means according to claim 1, it is characterised in that：The extrusion head is by covering
The steel strand wires of upper extruded sleeve make it that extruded sleeve generation bonds steel strand wires after being plastically deformed and is formed by special-purpose machines and tools.
4. the construction method of prestress wire p-type anchor stopping means as claimed in claim 1, it is characterised in that including following
Step：
(1) extruded sleeve of upper fixing end p-type anchorage is covered on steel strand wires head in fixing end p-type anchorage installation steel strand wires first；
(2) steel strand wires for putting extruded sleeve are extruded with special-purpose machines and tools, make extruded sleeve produce bond steel strand wires after plastic deformation and
Form extrusion head；When extruded sleeve is by extrusion die, MTP value is between 25~35MPa, it is desirable to which bottom is embedding with steel strand wires
Set is close, and without pit, extrusion spring should be entirely embedded between extruded sleeve and steel strand wires, and length and external diameter should be accorded with after extruding
Producer's set-point is closed, outside is answered smooth flawless；
(3) it is fixing end p-type anchorage is assembled successively；
(4) bellows, constraint circle and the spiral bar of fixing end p-type anchorage are installed, the steel strand wires for loading onto extruded sleeve are penetrated successively
Fixing end anchor slab mounting hole site, and by steel strand wires are single or whole beam passes through bellows, installation is had good positioning fixing end anchor slab；
(5) banking stop is installed, banking stop is arranged on p-type anchor end successively, the installation of fixing end anchor slab is passed through with caging bolt
Hole and banking stop are fixed by nut, it is ensured that the mounting distance between constraint circle and fixing end anchor slab meet installation specification with
And extrusion head should be close to fixing end anchor slab；
(6) finally the grout outlet of fixing end p-type anchorage is installed in position and channel seal is carried out, in order to avoid pour coagulation
Spillage enters bellows when native.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194568.5A CN107034784A (en) | 2017-03-28 | 2017-03-28 | Prestress wire p-type anchor stopping means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194568.5A CN107034784A (en) | 2017-03-28 | 2017-03-28 | Prestress wire p-type anchor stopping means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107034784A true CN107034784A (en) | 2017-08-11 |
Family
ID=59534673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710194568.5A Pending CN107034784A (en) | 2017-03-28 | 2017-03-28 | Prestress wire p-type anchor stopping means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107034784A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2555318Y (en) * | 2002-08-12 | 2003-06-11 | 开封科英预应力锚具厂 | Extruded anchorage with non-stretching end |
| JP2004339800A (en) * | 2003-05-15 | 2004-12-02 | Anderson Technology Kk | Anchor disk of fixing part of prestressed concrete and bush fitted/inserted in fitting/inserting hole of anchor disk |
| CN201521112U (en) * | 2008-12-16 | 2010-07-07 | 万国强 | P-shaped anchor tool system |
| CN202298442U (en) * | 2011-07-05 | 2012-07-04 | 成都川锚路桥机械有限公司 | Fixed end anchorage for tension steel strand |
| CN206646407U (en) * | 2017-03-28 | 2017-11-17 | 中建七局第二建筑有限公司 | Prestress wire p-type anchor stopping means |
-
2017
- 2017-03-28 CN CN201710194568.5A patent/CN107034784A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2555318Y (en) * | 2002-08-12 | 2003-06-11 | 开封科英预应力锚具厂 | Extruded anchorage with non-stretching end |
| JP2004339800A (en) * | 2003-05-15 | 2004-12-02 | Anderson Technology Kk | Anchor disk of fixing part of prestressed concrete and bush fitted/inserted in fitting/inserting hole of anchor disk |
| CN201521112U (en) * | 2008-12-16 | 2010-07-07 | 万国强 | P-shaped anchor tool system |
| CN202298442U (en) * | 2011-07-05 | 2012-07-04 | 成都川锚路桥机械有限公司 | Fixed end anchorage for tension steel strand |
| CN206646407U (en) * | 2017-03-28 | 2017-11-17 | 中建七局第二建筑有限公司 | Prestress wire p-type anchor stopping means |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170811 |