CN106480882A - Embedded steel ball FRP muscle internal cone type binding ground tackle and its implementation - Google Patents
Embedded steel ball FRP muscle internal cone type binding ground tackle and its implementation Download PDFInfo
- Publication number
- CN106480882A CN106480882A CN201610907998.2A CN201610907998A CN106480882A CN 106480882 A CN106480882 A CN 106480882A CN 201610907998 A CN201610907998 A CN 201610907998A CN 106480882 A CN106480882 A CN 106480882A
- Authority
- CN
- China
- Prior art keywords
- steel ball
- anchor cylinder
- centering plug
- end centering
- hole
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
-
- 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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
Abstract
The invention discloses a kind of embedded steel ball FRP muscle internal cone type binding ground tackle and its implementation, this anchorage includes anchor cylinder, steel ball, offers the cavity of taper in described anchor cylinder, the diameter of this cavity by upper under successively decrease；The upper and lower ends of described anchor cylinder are respectively arranged with upper end centering plug and lower end centering plug, and upper end centering plug and lower end centering plug all offer centring hole, and centring hole is used for passing through muscle material；Several holes, the diameter with diameter greater than steel ball of described hole are offered on described upper end centering plug；Described steel ball is multiple, is filled between anchor cylinder and muscle material；Described anchor cylinder is provided with glue filling opening, and glue filling opening is connected with the cavity in anchor cylinder.The anchorage of the present invention has the advantages that higher resistant slide ability, high anchoring efficiency, good durability.
Description
Technical field
The present invention relates to the anchor of a kind of tension cable or muscle material, especially anchoring fiber bar material (FRP) is bonded
Anchor and its implementation.
Background technology
Existing FRP muscle anchorage mainly has bonded, clipping and three kinds of combined type.Although existing bonded anchoring dress
Put the effective bonding it is achieved that to FRP muscle, but the type anchorage, on the premise of ensureing effectively to anchor, can lead to anchorage length
Excessive；The squeezing action of inner cone section is likely to occur obvious skewness simultaneously, and the anchorage effect of whole inner cone section can not be complete
Full performance, integral fastening is less efficient, is unfavorable for the raising of anchor cylinder tonnage.Intermediate plate laterally squeezing to FRP muscle in clipping anchorage
Pressure is excessive, and the Transverse Shear Strength of FRP muscle is relatively low, easily because muscle material failure by shear leads to anchorage to lose efficacy.Composite anchorage
Construction complicated, high to anchorage material requirements, increased cost, be unsuitable for large-scale production and application.
Content of the invention
Goal of the invention：The present invention provides a kind of embedded steel ball FRP muscle internal cone type binding ground tackle and its implementation, to shorten
Anchorage length, can be prevented effectively from the sliding because clamping the failure by shear producing and muscle material, and construction is simple and convenient, and expense is relatively low, should
With wide, it is applicable to the anchorage of various types of fiber bar material.
Technical scheme：For achieving the above object, the present invention adopts following technical scheme：
A kind of embedded steel ball FRP muscle internal cone type binding ground tackle, including anchor cylinder, steel ball, offers taper in described anchor cylinder
Cavity, the diameter of this cavity by upper under successively decrease；The upper and lower ends of described anchor cylinder are respectively arranged with upper end centering plug and lower end
Centring hole is all offered, centring hole is used for passing through muscle material on centering plug, upper end centering plug and lower end centering plug；Described
Several holes, the diameter with diameter greater than steel ball of described hole are offered on upper end centering plug；Described steel ball is multiple, fills out
Fill between anchor cylinder and muscle material；Described anchor cylinder is provided with glue filling opening, and glue filling opening is connected with the cavity in anchor cylinder.
Described glue filling opening is located at anchor cylinder lower end.
Described steel ball is the different steel ball of multiple diameters, is put between anchor cylinder and muscle material with different gradation layering.
Described upper end centering plug and lower end centering plug are centrally located on the axis of anchor cylinder.
Described centring hole is located at the center of upper end centering plug and lower end centering plug.
Described hole is located at around centring hole, and distribution annular in shape.
A kind of implementation of embedded steel ball FRP muscle bond type anchorage, comprises the following steps：
Step one：Anchor cylinder is upright, and by one end larger for its internal cavity diameter upward, muscle material is sequentially passed through
Centring hole on centring hole on lower end centering plug, anchor cylinder, upper end centering plug；
Step 2：The upper end centering plug of fixing anchor cylinder and lower end centering plug, make muscle material centering；
Step 3：By several the hole on upper end centering plug, steel ball ascending for diameter is sequentially placed into；
Step 4：Carry out encapsulating with pressure adhesive injection device at glue filling opening opening；
Step 5：After encapsulating, to be solidified.
In described step 3, the steel ball quantity of the same diameter put in each hole equal so that steel ball in anchor cylinder and
It is uniformly distributed between muscle material.
In described step 4, during encapsulating, until all centring hole of upper end centering plug and hole all have colloid to overflow, complete
Become encapsulating.
In described step 5, in solidification process, hold the lower end centering plug of anchor cylinder and keep anchor cylinder muscle material to remain
Vertical state, until solidification.
Beneficial effect：The present invention embeds steel ball between FRP muscle material and anchor cylinder, secures the position of muscle material, strengthens anchor
The performance of tool, makes the resistant slide ability of anchorage strengthen simultaneously, and anchorage efficiency improves, and reduces anchorage length, improves anchorage
Durability.Construction is simple and convenient, and expense is low, can be widely popularized it is adaptable to different types of FRP muscle material.
Brief description
Fig. 1 embeds the threedimensional model schematic diagram of steel ball FRP rib tape taper bond type anchorage for the present invention；
Fig. 2 embeds the vertical section structure schematic diagram of steel ball FRP rib tape taper bond type anchorage for the present invention；
Fig. 3 is the I-I sectional view of Fig. 2；
The structure three-dimensional that Fig. 4 embeds the upper end centering plug of steel ball FRP rib tape taper bond type anchorage for the present invention is illustrated
Figure；
Fig. 5 is the load-displacement curve of anchorage test in embodiment；
Fig. 6 is the pictorial diagram of test specimen S-2 vertical profile tangent plane；
In figure：1- anchor cylinder, 2- upper end centering plug, 3- lower end centering plug, 4- glue filling opening, 5- steel ball, 6- muscle material, 7- pair
Mesopore.
Specific embodiment
As Figure 1-4, a kind of embedded steel ball FRP muscle internal cone type binding ground tackle, including anchor cylinder 1, steel ball 5, opens in anchor cylinder 1
Be provided with the cavity of taper, the diameter of this cavity by upper under successively decrease；The upper and lower ends of anchor cylinder 1 are respectively arranged with upper end centering plug
2 and lower end centering plug 3, upper end centering plug 2 and lower end centering plug 3 all offer centring hole 7, centring hole 7 is used for will
Muscle material 6 passes through；Several holes 8, the diameter with diameter greater than steel ball 5 of described hole 8 are offered on upper end centering plug 2；Steel
Pearl 5 is multiple, is filled between anchor cylinder 1 and muscle material 6；Anchor cylinder 1 is provided with glue filling opening 4, and glue filling opening 4 is connected with the cavity in anchor cylinder 1
Logical.
For making encapsulating effect good, glue filling opening 4 is close proximity to anchor cylinder 1 lower end.
Steel ball 5 is the different steel ball of multiple diameters, is put between anchor cylinder 1 and muscle material 6 with different gradation layering.Steel ball 5
Diameter is adapted with the distance on anchor cylinder 1 inwall to muscle material 6 surface of steel ball 5 position.
Upper end centering plug 2 and lower end centering plug 3 are centrally located on the axis of anchor cylinder.
Centring hole 7 is located at the center of upper end centering plug 2 and lower end centering plug 3.
Hole 8 is located at around centring hole 7, and distribution annular in shape.
A kind of implementation of embedded steel ball FRP muscle bond type anchorage, comprises the following steps：
Step one：Will be upright for anchor cylinder 1, and by one end larger for its internal cavity diameter upward, muscle material 6 is worn successively
Cross centring hole on lower end centering plug 3, anchor cylinder 1, the centring hole on upper end centering plug 2；
Step 2：The upper end centering plug 2 of fixing anchor cylinder 1 and lower end centering plug 3, make muscle material 6 centering；
Step 3：By several the hole 8 on upper end centering plug 2, steel ball 5 ascending for diameter is put successively
Enter；The steel ball quantity of the same diameter put in each hole 8 is equal so that steel ball 5 is uniformly distributed between anchor cylinder 1 and muscle material 6；
Step 4：Carry out encapsulating with pressure adhesive injection device at glue filling opening 4 opening；Until owning of upper end centering plug 2
Centring hole and hole all have colloid to overflow, and complete encapsulating；
Step 5：After encapsulating, to be solidified；In solidification process, hold the lower end centering plug of anchor cylinder 1 and keep anchor cylinder
Muscle material remains vertical state, until solidification.
With reference to specific embodiment, the present invention will be further described.
Embodiment
Made 3 groups of anchorage test specimens in the present embodiment altogether, 3 groups of test specimens all using the anchorage identical size with the present invention,
Anchorage length is 50mm, and in order to test the anchoring efficiency of invention anchorage, 3 groups of test specimen other ends must effectively anchor, therefore all adopts
Length 200mm steel pipe straight tube anchorage, 3 groups of test specimen muscle material free end length are 250mm.Muscle material is all with ribbing using diameter 5mm
CFRP muscle material.
As described above, the difference of 3 groups of test specimens is as shown in table 1 below for the step of the implementation of this example：
13 groups of test specimen processing technology of table
The load-displacement curve that Fig. 5 tests for anchorage, is not slided using the muscle material of S-2 and S-3 anchorage anchoring as seen from the figure
There is later stage bearing capacity after shifting or sliding again, and the muscle material after the anchoring of S-1 anchorage just produces sliding in stress very little.This test
The effect that provable steel ball improves to anchorage anchoring efficiency.Fig. 6 is the pictorial diagram of test specimen S-2 vertical profile tangent plane.
The above be only the preferred embodiment of the present invention it should be pointed out that：Ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of embedded steel ball FRP muscle internal cone type binding ground tackle it is characterised in that：Including anchor cylinder (1), steel ball (5), described anchor cylinder
(1) offer the cavity of taper in, the diameter of this cavity by upper under successively decrease；The upper and lower ends of described anchor cylinder (1) are respectively provided with
Have and all offer in upper end centering plug (2) and lower end centering plug (3), upper end centering plug (2) and lower end centering plug (3)
Centring hole (7), centring hole (7) is used for passing through muscle material (6)；Several holes are offered on described upper end centering plug (2)
(8), the diameter with diameter greater than steel ball (5) of described hole (8)；Described steel ball (5) is multiple, is filled in anchor cylinder (1) and muscle material
(6) between；Described anchor cylinder (1) is provided with glue filling opening (4), and glue filling opening (4) is connected with the cavity in anchor cylinder (1).
2. embedded steel ball FRP muscle internal cone type binding ground tackle according to claim 1 it is characterised in that：Described glue filling opening (4)
Positioned at anchor cylinder (1) lower end.
3. embedded steel ball FRP muscle internal cone type binding ground tackle according to claim 1 it is characterised in that：Described steel ball (5) is
The different steel ball of multiple diameters, is put between anchor cylinder (1) and muscle material (6) with different gradation layering.
4. embedded steel ball FRP muscle bond type anchorage according to claim 1 it is characterised in that：Described upper end centering plug
(2) it is centrally located on the axis of anchor cylinder with lower end centering plug (3).
5. embedded steel ball FRP muscle bond type anchorage according to claim 1 it is characterised in that：Described centring hole (7) is located at
Upper end centering plug (2) and the center of lower end centering plug (3).
6. embedded steel ball FRP muscle internal cone type binding ground tackle according to claim 1 it is characterised in that：Described hole (8) position
Around centring hole (7), and distribution annular in shape.
7. a kind of arbitrary described embedded steel ball FRP muscle bond type anchorage of claim 1-6 implementation it is characterised in that：
Comprise the following steps：
Step one：Anchor cylinder (1) is upright, and by one end larger for its internal cavity diameter upward, muscle material (6) is worn successively
Cross centring hole in lower end centering plug (3), anchor cylinder (1), the centring hole in upper end centering plug (2)；
Step 2：Upper end centering plug (2) of fixing anchor cylinder (1) and lower end centering plug (3), make muscle material (6) centering；
Step 3：By several the hole (8) in upper end centering plug (2), by steel ball (5) ascending for diameter successively
Put into；
Step 4：Carry out encapsulating with pressure adhesive injection device at glue filling opening (4) opening；
Step 5：After encapsulating, to be solidified.
8. embedded steel ball FRP muscle bond type anchorage according to claim 7 implementation it is characterised in that：Described step
In rapid three, the steel ball quantity of the same diameter put in each hole (8) is equal so that steel ball (5) is in anchor cylinder (1) and muscle material
(6) it is uniformly distributed between.
9. embedded steel ball FRP muscle bond type anchorage according to claim 7 implementation it is characterised in that：Described step
In rapid four, during encapsulating, until all centring hole of upper end centering plug (2) and hole all have colloid to overflow, complete encapsulating.
10. embedded steel ball FRP muscle bond type anchorage according to claim 7 implementation it is characterised in that：Described step
In rapid five, in solidification process, hold the lower end centering plug of anchor cylinder (1) and keep anchor cylinder muscle material to remain vertical state, directly
To solidification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610907998.2A CN106480882B (en) | 2016-10-18 | 2016-10-18 | Embedded steel ball FRP tendons internal cone type binding ground tackle and its implementation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610907998.2A CN106480882B (en) | 2016-10-18 | 2016-10-18 | Embedded steel ball FRP tendons internal cone type binding ground tackle and its implementation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106480882A true CN106480882A (en) | 2017-03-08 |
| CN106480882B CN106480882B (en) | 2018-06-15 |
Family
ID=58270146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610907998.2A Active CN106480882B (en) | 2016-10-18 | 2016-10-18 | Embedded steel ball FRP tendons internal cone type binding ground tackle and its implementation |
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| Country | Link |
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| CN (1) | CN106480882B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242066A (en) * | 2019-06-17 | 2019-09-17 | 哈尔滨工业大学 | Anchor tool system and its anchoring process for the fibre reinforced composites body of rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2603117Y (en) * | 2003-03-07 | 2004-02-11 | 吴志刚 | Self adaptive anchor clamp |
| JP2015040462A (en) * | 2013-08-23 | 2015-03-02 | 積水化学工業株式会社 | Ground anchor and ground anchor method |
| CN204531183U (en) * | 2015-03-23 | 2015-08-05 | 天津大学 | A kind of combined type CFRP muscle anchoring system |
| CN204780592U (en) * | 2015-07-07 | 2015-11-18 | 中铁大桥局集团有限公司 | Fibre reinforced composite cable anchor device of release cuff effect |
| CN105970956A (en) * | 2016-07-06 | 2016-09-28 | 中国京冶工程技术有限公司 | Clamping piece type anchorage device for FRP rebar and method for conducting anchoring through clamping piece type anchorage device |
-
2016
- 2016-10-18 CN CN201610907998.2A patent/CN106480882B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2603117Y (en) * | 2003-03-07 | 2004-02-11 | 吴志刚 | Self adaptive anchor clamp |
| JP2015040462A (en) * | 2013-08-23 | 2015-03-02 | 積水化学工業株式会社 | Ground anchor and ground anchor method |
| CN204531183U (en) * | 2015-03-23 | 2015-08-05 | 天津大学 | A kind of combined type CFRP muscle anchoring system |
| CN204780592U (en) * | 2015-07-07 | 2015-11-18 | 中铁大桥局集团有限公司 | Fibre reinforced composite cable anchor device of release cuff effect |
| CN105970956A (en) * | 2016-07-06 | 2016-09-28 | 中国京冶工程技术有限公司 | Clamping piece type anchorage device for FRP rebar and method for conducting anchoring through clamping piece type anchorage device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242066A (en) * | 2019-06-17 | 2019-09-17 | 哈尔滨工业大学 | Anchor tool system and its anchoring process for the fibre reinforced composites body of rod |
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| Publication number | Publication date |
|---|---|
| CN106480882B (en) | 2018-06-15 |
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