CN108457475A - A kind of prestressed stretch-draw limiting plate - Google Patents
A kind of prestressed stretch-draw limiting plate Download PDFInfo
- Publication number
- CN108457475A CN108457475A CN201810123631.0A CN201810123631A CN108457475A CN 108457475 A CN108457475 A CN 108457475A CN 201810123631 A CN201810123631 A CN 201810123631A CN 108457475 A CN108457475 A CN 108457475A
- Authority
- CN
- China
- Prior art keywords
- plate body
- movable panel
- limit plate
- limiting plate
- limit
- 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
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Classifications
-
- 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
-
- 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
- E04G21/121—Construction of stressing jacks
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of prestressed stretch-draw limiting plates, are arranged between anchorage and jack, including：Plate body is limited, and dismountable spring, movable panel and retaining ring in limiting plate body interior are set；Wherein：The shape for limiting plate body is the hollow cylinder of one end open, and top is open end, and open end is contacted with anchorage, bottom end and very heavy top contact；It limits and is provided with stepped recesses on the open end of plate body, the limiting groove of annular is provided with below stepped recesses, retaining ring is arranged in limiting groove；Spring one end and the bottom end of limit plate body connect, and the other end is connected with movable panel, and movable panel moves up and down in the inner wall of limit plate body, and is limited by retaining ring in apical position；It is both provided with multiple circular holes on limit plate body and movable panel.The present invention can reduce the loss of stretch-draw prestressing force, reduce the damage of anchor cable, cost-effective.
Description
Technical field
The present invention relates to anchorage technical field of construction more particularly to a kind of prestressed stretch-draw limiting plates.
Background technology
With the needs of social progress and engineering construction, the application of prestressing technique is more and more, prestressed construction technology
And plant is also varied, for the prestressed Construction Technology of anchor cable, existing limiting plate is mostly groove stairstepping, such as
Fig. 1, this limiting plate divide two-stage ladder, and when prestressed stretch-draw, intermediate plate is opened the distance in ladder gap, and intermediate plate has when putting
The amount of recovery in ladder gap is more, causes loss of prestress.
Invention content
The technical problem to be solved in the present invention is for the defects in the prior art, to provide a kind of prestressed stretch-draw limit
Plate.
The technical solution adopted by the present invention to solve the technical problems is：
The present invention provides a kind of prestressed stretch-draw limiting plate, is arranged between anchorage and jack, including：Limiting plate master
Body, and dismountable spring, movable panel and retaining ring in limiting plate body interior are set；Wherein：Limit the shape of plate body
Shape is the hollow cylinder of one end open, and top is open end, and open end is contacted with anchorage, bottom end and very heavy top contact；Limit
It is provided with stepped recesses on the open end of position plate body, the limiting groove of annular is provided with below stepped recesses, retaining ring setting exists
In limiting groove；Spring one end and the bottom end of limit plate body connect, and the other end is connected with movable panel, movable top
Plate moves up and down in the inner wall of limit plate body, and is limited by retaining ring in apical position；Limit plate body and
Multiple circular holes are both provided on movable panel.
Further, multiple track slots are provided on the inner wall of limit plate body of the invention, are provided on movable panel more
A boss, boss is equal with track slot quantity and mutual cooperation connects, and movable panel is made to be limited in plate body up and down along track slot
Movement.
Further, the circular hole in limit plate body and movable panel of the invention is both provided with no less than 3, and respectively
The center of circle to limit plate body and movable panel is centrosymmetric as symmetrical centre.
Further, the diameter of movable panel of the invention is consistent with the limit internal diameter of plate body.
Further, limit plate body of the invention is consistent with the circular hole quantity on movable panel, and with the quantity of anchor cable
Unanimously.
The beneficial effect comprise that：The prestressed stretch-draw limiting plate of the present invention, when tensioning, intermediate plate has the work of bigger
Dynamic space, avoid due to limiting plate ladder gap it is too small caused by intermediate plate is locked, fracture of wire phenomenon；When putting, intermediate plate is made not have back
Contracting amount avoids or reduces the loss of stretch-draw prestressing force；In the case of not super, meet design requirement, compared with the damage of kedge rope,
It is cost-effective.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the schematic cross-sectional view of the embodiment of the present invention；
Fig. 2 is the stereogram of the embodiment of the present invention；
Fig. 3 is the fractionation structural representation of the embodiment of the present invention；
Fig. 4 is the common limit plate structure schematic diagram of the embodiment of the present invention；
In figure, 1- limit plate bodies, 2- springs, 3- movable panels, 4- retaining rings, 5- stepped recesses, 6- circular holes, 7- track slots,
8- limiting grooves.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
As shown in Figure 1, the prestressed stretch-draw limiting plate of the embodiment of the present invention, using a kind of prestressed stretch-draw limiting plate,
Prestressd anchor cable tensioning is completed, and is put before opening, and by the elastic force of contained spring, is pushed movable panel that anchor clipper is made to clamp, is prevented
Loss of prestress caused by intermediate plate retraction makes prestressed stretch-draw meet design requirement in the case of not ultra stretching when only putting.
Prestressed stretch-draw limiting plate is mainly made of limit plate body 1, spring 2, movable panel 3, retaining ring 4.
As shown in Figures 2 and 3, limit plate body is divided to two faces, the face contacted with anchorage to be equipped with the stepped recesses of a step
5, the circular hole 6 for wearing anchor cable is provided with the face of very heavy top contact, there are the track slots 7 and retaining ring of movable panel for limiting plate main body inner wall
The limiting groove 8 of installation.Spring 2 is placed on inside limit plate body 1, by 7 installation activity top plate 3 of track slot, is installed after pressure
Retaining ring 4.Prestressed stretch-draw limiting plate is arranged between anchorage and jack, including：Plate body 1 is limited, and setting is limiting
Dismountable spring 2, movable panel 3 inside plate body 1 and retaining ring 4；Wherein：The shape for limiting plate body 1 is one end open
Hollow cylinder, top is open end, and open end contacts with anchorage, bottom end and very heavy top contact；Limit plate body 1 is opened
Stepped recesses 5 are provided on mouth end, 5 lower section of stepped recesses is provided with the limiting groove 8 of annular, and retaining ring 4 is arranged in limiting groove 8
It is interior；2 one end of spring and the bottom end of limit plate body 1 connect, and the other end is connected with movable panel 3, and movable panel 3 exists
It limits and moves up and down in the inner wall of plate body 1, and limited by retaining ring 4 in apical position；It limits plate body 1 and lives
It is both provided with multiple circular holes 6 on dynamic top plate 3.
It limits and is provided with multiple track slots 7 on the inner wall of plate body 1, multiple boss, boss and rail are provided on movable panel 3
7 quantity of slot is equal and mutual cooperation connects, and movable panel 3 is made to move up and down in limit plate body 1 along track slot 7.
Circular hole 6 in limit plate body 1 and movable panel 3 is both provided with no less than 3, and respectively to limit plate body 1
It is centrosymmetric for symmetrical centre with the center of circle of movable panel 3.
The diameter of movable panel 3 is consistent with the limit internal diameter of plate body 1.Limit the circular hole on plate body 1 and movable panel 3
6 quantity are consistent, and consistent with the quantity of anchor cable.
Beneficial effects of the present invention：
1, when tensioning, intermediate plate has the activity space of bigger, and intermediate plate caused by since limiting plate ladder gap is too small is avoided to lock
Extremely, fracture of wire phenomenon.
When 2, putting, so that intermediate plate is not had amount of recovery, avoid or reduce the loss of stretch-draw prestressing force.
3, in the case of not super, meet design requirement, it is cost-effective compared with the damage of kedge rope.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (5)
1. a kind of prestressed stretch-draw limiting plate is arranged between anchorage and jack, which is characterized in that including：Limit plate body
(1), and setting is limiting plate body (1) internal dismountable spring (2), movable panel (3) and retaining ring (4)；Wherein：Limit
The shape of position plate body (1) is the hollow cylinder of one end open, and top is open end, and open end is contacted with anchorage, bottom end
With very heavy top contact；It is provided with stepped recesses (5) on the open end of limit plate body (1), ring is provided with below stepped recesses (5)
The limiting groove (8) of shape, retaining ring (4) setting is in limiting groove (8)；Spring (2) one end and the bottom end of limit plate body (1) connect
Connection is touched, the other end is connected with movable panel (3), and movable panel (3) makees fortune up and down in the inner wall of limit plate body (1)
It is dynamic, and limited by retaining ring (4) in apical position；It is both provided in limit plate body (1) and movable panel (3) multiple
Circular hole (6).
2. prestressed stretch-draw limiting plate according to claim 1, which is characterized in that set on the inner wall of limit plate body (1)
Multiple track slots (7) are equipped with, multiple boss are provided on movable panel (3), boss is equal with track slot (7) quantity and mutual cooperation connects
It connects, movable panel (3) is made to move up and down in limit plate body (1) along track slot (7).
3. prestressed stretch-draw limiting plate according to claim 1, which is characterized in that limit plate body (1) and movable panel
(3) circular hole (6) on is both provided with no less than 3, and is respectively pair with the center of circle for limiting plate body (1) and movable panel (3)
Title center is centrosymmetric.
4. prestressed stretch-draw limiting plate according to claim 1, which is characterized in that the diameter of movable panel (3) and limit
The internal diameter of plate body (1) is consistent.
5. prestressed stretch-draw limiting plate according to claim 1, which is characterized in that limit plate body (1) and movable panel
(3) circular hole (6) quantity on is consistent and consistent with the quantity of anchor cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123631.0A CN108457475A (en) | 2018-02-07 | 2018-02-07 | A kind of prestressed stretch-draw limiting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810123631.0A CN108457475A (en) | 2018-02-07 | 2018-02-07 | A kind of prestressed stretch-draw limiting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108457475A true CN108457475A (en) | 2018-08-28 |
Family
ID=63238768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810123631.0A Pending CN108457475A (en) | 2018-02-07 | 2018-02-07 | A kind of prestressed stretch-draw limiting plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457475A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804941A (en) * | 2019-11-20 | 2020-02-18 | 佛山科学技术学院 | Stay cable stretching anchoring anti-retraction device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101208677B1 (en) * | 2012-05-22 | 2012-12-06 | 윤여훈 | Coupler for precast concrete and precast concrete assembly having the same |
| CN202658601U (en) * | 2012-06-02 | 2013-01-09 | 山东科技大学 | Adjustable elastic limiting plate for anchor cable |
| CN202990438U (en) * | 2012-12-05 | 2013-06-12 | 柳州市桥厦工程管材有限公司 | Prestress tensioning limit plate |
| CN103572970A (en) * | 2013-11-12 | 2014-02-12 | 中建三局建设工程股份有限公司 | Limiting device capable of automatically adjusting expansion and contraction quantity of clamping piece and use method thereof |
| CN205387823U (en) * | 2016-02-03 | 2016-07-20 | 重庆长江预应力有限公司 | A self -adaptation stop device for limiting plate |
-
2018
- 2018-02-07 CN CN201810123631.0A patent/CN108457475A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101208677B1 (en) * | 2012-05-22 | 2012-12-06 | 윤여훈 | Coupler for precast concrete and precast concrete assembly having the same |
| CN202658601U (en) * | 2012-06-02 | 2013-01-09 | 山东科技大学 | Adjustable elastic limiting plate for anchor cable |
| CN202990438U (en) * | 2012-12-05 | 2013-06-12 | 柳州市桥厦工程管材有限公司 | Prestress tensioning limit plate |
| CN103572970A (en) * | 2013-11-12 | 2014-02-12 | 中建三局建设工程股份有限公司 | Limiting device capable of automatically adjusting expansion and contraction quantity of clamping piece and use method thereof |
| CN205387823U (en) * | 2016-02-03 | 2016-07-20 | 重庆长江预应力有限公司 | A self -adaptation stop device for limiting plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804941A (en) * | 2019-11-20 | 2020-02-18 | 佛山科学技术学院 | Stay cable stretching anchoring anti-retraction device |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180828 |
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| RJ01 | Rejection of invention patent application after publication |