CN204023888U - Strand tapered anchorage - Google Patents
Strand tapered anchorage Download PDFInfo
- Publication number
- CN204023888U CN204023888U CN201420478503.5U CN201420478503U CN204023888U CN 204023888 U CN204023888 U CN 204023888U CN 201420478503 U CN201420478503 U CN 201420478503U CN 204023888 U CN204023888 U CN 204023888U
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- China
- Prior art keywords
- fiberboard
- hole
- strand tapered
- tapered anchorage
- trapezoidal shape
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- 239000011094 fiberboard Substances 0.000 claims abstract description 57
- 238000004873 anchoring Methods 0.000 claims abstract description 26
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 21
- 239000000835 fiber Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003014 reinforcing effect Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 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
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses a kind of strand tapered anchorage, comprise chuck body, chuck body offers the trapezoidal shape through hole worn for fiberboard; Two intermediate plates, it is located in trapezoidal shape through hole, and fiberboard is folded between two intermediate plates; The one side that intermediate plate contacts with fiberboard is provided with friction recess.Strand tapered anchorage of the present utility model is clamped fiberboard by two intermediate plates, jointly be installed in the trapezoidal shape through hole of chuck body, there is provided frictional force to realize the ground tackle of anchorage effect mainly through interfacial mechanical interlocking, it can be used for the clamping of high-intensity fiber sheet material, stretch-draw and anchoring, this strand tapered anchorage build is light and handy, making is simple, install simple and easy, dependable performance, the high powerful feature of high-intensity fiber sheet material can be given full play to, the clamping uniformity of high-intensity fiber sheet material can be ensured, the application advantage of lifting body External prestressed reinforcing technique.
Description
Technical field
The utility model has about a kind of strand tapered anchorage, especially has the strand tapered anchorage about applying in a kind of structural fortification field.
Background technology
High-intensity fiber sheet material refers to the even sheet material that the enhancement mode of high-strength light and unidirectional, the continuously arranged fiber of functional form are made after impregnated resin stick (such as resin) process, belong to fibre reinforced composites (English name Fiber Reinforced Polymer), as carbon fibre reinforced plastic, glass fiber reinforced plastics, ceramoplastic etc.As a kind of excellent tensile materials, high-intensity fiber sheet material has been widely used in structural fortification field.
From the angle of reinforce of structure effect, high-intensity fiber sheet material is directly pasted on the consolidation effect on works surface and not obvious, and easily peels off when works destroys serious; And utilize metal ground tackle to clamp the two ends of high-intensity fiber sheet material, to high-intensity fiber sheet material Shi Hanzhang and and the consolidation effect that connects of works very remarkable, anchoring property is also very reliable.
The composite board shearing resistance of making after high fiber strength strains homogeneous impregnation bonding adhesive and fracture resistance poor, very high to clamping uniformity requirement, existing ground tackle is when clamping high-intensity fiber sheet material, its retaining part can produce stress and concentrates and make high-intensity fiber sheet material produce local shear failure, or generation Relative sliding makes high-intensity fiber sheet material skid off ground tackle.The ground tackle that this anchoring efficiency is lower can not give full play to reinforcement material intensity, cause waste of material, and existing ground tackle is bulky, both limit degree of freedom and the flexibility of reinforcing design, be unfavorable for in-site installation, have impact on again headroom and overall appearance below works, limit the popularization of this reinforcing technique.
Therefore, be necessary to provide a kind of novel strand tapered anchorage, overcome above-mentioned defect.
Utility model content
The purpose of this utility model is to provide a kind of strand tapered anchorage, can clamp securely fiberboard, and this strand tapered anchorage build is light and handy, making is simple, install simple and easy, dependable performance.
Above-mentioned purpose of the present utility model can adopt following technical proposal to realize:
The utility model provides a kind of strand tapered anchorage, comprises chuck body, chuck body offers the trapezoidal shape through hole worn for fiberboard; Two intermediate plates, it is located in trapezoidal shape through hole, and fiberboard is folded between two intermediate plates; The one side that intermediate plate contacts with fiberboard is provided with friction recess.
Further, the recess that rubs is strip groove, grid groove or multiple concave point.
Further, the one side that intermediate plate contacts with fiberboard is coated with adhesive layer.
Further, be provided with chamfering structure in circular arc in trapezoidal shape through hole, intermediate plate be provided with the outer chamfering structure of circular arc, the outer chamfering structure of circular arc matches with chamfering structure in circular arc.
Further, chuck body offers multiple anchoring preformed hole.
Further, the axis direction of anchoring preformed hole and the axis direction of trapezoidal shape through hole mutually vertical.
Further, multiple anchoring preformed hole is symmetricly set in chuck body.
Further, the thickness h≤50mm of chuck body.
Further, intermediate plate is wedge shape, and the angle of wedge of wedge shape is 1 ° to 10 °.
Further, the halfpace bottom surface of trapezoidal shape through hole is towards the draw direction of fiberboard.
Feature and the advantage of strand tapered anchorage of the present utility model are: clamped fiberboard by two intermediate plates, jointly be installed in the trapezoidal shape through hole of chuck body, there is provided frictional force to realize the ground tackle of anchorage effect mainly through interfacial mechanical interlocking, it is by being arranged on the friction recess of clip surface, improve the frictional force between intermediate plate and fiberboard, raising fiberboard is fixed on the stable degree in chuck body further.This strand tapered anchorage can be used for the clamping of high-intensity fiber sheet material, stretch-draw and anchoring, its build is light and handy, making is simple, install simple and easy, dependable performance, the high powerful feature of high-intensity fiber sheet material can be given full play to, and the clamping uniformity of high-intensity fiber sheet material can be ensured, the application advantage of lifting body External prestressed reinforcing technique.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of the first embodiment of strand tapered anchorage of the present utility model;
Fig. 2 is the front view of the second embodiment of strand tapered anchorage of the present utility model;
Fig. 3 is that the I-I of Fig. 2 is to cross-sectional schematic;
Fig. 4 is the left view of strand tapered anchorage of the present utility model;
Fig. 5 is the A portion enlarged diagram of Fig. 4;
Fig. 6 is the schematic diagram of the intermediate plate of strand tapered anchorage of the present utility model;
Fig. 7 is the schematic diagram of the first embodiment of the friction recess of the intermediate plate of strand tapered anchorage of the present utility model;
Fig. 8 is the schematic diagram of the second embodiment of the friction recess of the intermediate plate of strand tapered anchorage of the present utility model; And
Fig. 9 is the schematic diagram of the 3rd embodiment of the friction recess of the intermediate plate of strand tapered anchorage of the present utility model.
10, chuck body; 11, anchoring preformed hole; 12, trapezoidal shape through hole; 121, chamfering structure in circular arc; 20, fiberboard; 30, intermediate plate; 31, rub recess; 301, the outer chamfering structure of circular arc.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figures 1 to 9, the utility model provides a kind of strand tapered anchorage, comprises chuck body 10, chuck body 10 offers the trapezoidal shape through hole 12 worn for fiberboard 20; Two intermediate plates 30, it is located in trapezoidal shape through hole 12, and fiberboard 20 is folded between two intermediate plates 30, and the one side that intermediate plate 30 contacts with fiberboard 20 is provided with the recess 31 that rubs.
Specifically, chuck body 10 is substantially in cuboid, and it is made up of steel, chromium steel or manganese steel, its thickness h≤50mm.The middle part of this chuck body 10 offers trapezoidal shape through hole 12, and fiberboard 20 is located in this trapezoidal shape through hole 12, and is arranged with two intermediate plates 30 in this trapezoidal shape through hole 12, and fiberboard 20 is between two intermediate plates 30.In the utility model, intermediate plate 30 is wedge shape, and the angle of wedge of wedge shape is 1 ° to 10 °, more firm when clamping to make fiberboard 20.
Further, as shown in Figures 4 to 6, be provided with chamfering structure 121 in circular arc in trapezoidal shape through hole 12, also namely four inward flanges of trapezoidal shape through hole 12 are formed with chamfering structure 121 in circular arc respectively; Intermediate plate 30 is provided with the outer chamfering structure 301 of circular arc, also namely after trapezoidal shape through hole 12 wedged by two intermediate plates 30, the two edges place that each intermediate plate 30 matches with two inward flanges of trapezoidal shape through hole 12 is formed with the outer chamfering structure 301 of this circular arc respectively, and the outer chamfering structure 301 of this circular arc matches with chamfering structure 121 in the circular arc of trapezoidal shape through hole 12.In the present embodiment, in circular arc, the chamfer radius of chamfering structure 121 and the outer chamfering structure 301 of circular arc is 1mm ~ 10mm, and it can reduce local stress, the raising anchoring efficiency of strand tapered anchorage effectively.
In the utility model, the direction that the halfpace bottom surface of the trapezoidal shape through hole 12 that this chuck body 10 is offered is stretched towards fiberboard 20, like this to make fiberboard 20 can be connected more fastening with chuck body 10 in the process stretched.The size of the fiberboard 20 in the present embodiment includes but not limited to following conventional sectional dimension specification: 100mm × 1.4mm, 80mm × 2mm, 50mm × 3mm, 80mm × 3mm.
As shown in Figure 7 to 9, the one side that intermediate plate 30 contacts with fiberboard 20 is provided with the recess 31 that rubs, the design of this friction recess 31, the frictional force between intermediate plate 30 and fiberboard 20 can be improved, be fixed on stable degree in chuck body 10 to improve fiberboard 20, in addition its can ensure frictional force transition that intermediate plate 30 transmits evenly, can not pinch off fiberboard 20 and wearing and tearing fiberboard 20 plate face.In the utility model, friction recess 31 can be the strip groove being opened in intermediate plate 30 surface shown in Fig. 7, or is the grid groove being opened in intermediate plate 30 surface shown in Fig. 8, or is the multiple concave points being opened in intermediate plate 30 surface shown in Fig. 9.
Further, the one side that intermediate plate 30 contacts with fiberboard 20 is coated with adhesive layer, this adhesive layer is used for wedging after trapezoidal shape through hole 12 bonding with the fiberboard 20 be located in trapezoidal shape through hole 12 at intermediate plate 30 and filling gap, more firm with what make fiberboard 20 be connected with chuck body 10.
Operating principle of the present utility model is penetrated by fiberboard 20 to offer in the chuck body 10 of trapezoidal shape through hole 12, the space between fiberboard 20 both sides and trapezoidal shape through hole 12 is filled in respectively after intermediate plate 30 surface smear bonding adhesive, jack unit is utilized to carry out synchronous wedging to two intermediate plates 30 afterwards, finally carry out maintenance at normal temperatures, treat that adhesive solidification can use.
Strand tapered anchorage of the present utility model, clamped by two intermediate plates, 30 pairs of fiberboards 20, jointly be installed in the trapezoidal shape through hole 12 of chuck body 10, there is provided frictional force to realize the ground tackle of anchorage effect mainly through interfacial mechanical interlocking, it is by being arranged on the friction recess 31 on intermediate plate 30 surface, improve the frictional force between intermediate plate 30 and fiberboard 20, raising fiberboard 20 is fixed on the stable degree in chuck body 10 further.This strand tapered anchorage can be used for the clamping of high-intensity fiber sheet material, stretch-draw and anchoring, its particular type is light and handy, making is simple, install simple and easy, dependable performance, the high powerful feature of high-intensity fiber sheet material can be given full play to, and the clamping uniformity of high-intensity fiber sheet material can be ensured, the application advantage of lifting body External prestressed reinforcing technique.
Figure 1 shows that the first embodiment of the present utility model, is utilize the end face pressure-bearing of chuck body 10 to carry out anchoring during its anchoring.
In another embodiment of the present utility model, as shown in Figure 2, this strand tapered anchorage is anchoring preformed hole 11 by it is offered when anchoring and penetrates connecting bolt, utilizes Corner cracks to carry out anchoring.Particularly, chuck body 10 offers multiple anchoring preformed hole 11, the axis direction of anchoring preformed hole 11 is mutually vertical with the axis direction of trapezoidal shape through hole 12, multiple anchoring preformed hole 11 is symmetricly set in chuck body 10, in the present embodiment, anchoring preformed hole 11 is 4, parallel with the thickness direction of fiberboard 20 on four angles being symmetricly set on chuck body 10 edge between two.
Structure and the application of strand tapered anchorage of the present utility model are described below by instantiation:
Clamping operating principle of the present utility model fiberboard 20 is penetrated the chuck body 10 offering trapezoidal shape through hole 12, after intermediate plate 30 surface smear bonding adhesive, two intermediate plates 30 are filled in respectively trapezoidal shape through hole 12 be positioned at above fiberboard 20 with fiberboard 20 below space, jack unit is utilized to carry out synchronous wedging to two intermediate plates 30 afterwards, finally carry out maintenance at normal temperatures, treat that adhesive solidification can use.The critical process making this strand tapered anchorage is choosing of the length of wedge shape intermediate plate 30, the gradient and surface roughness.
Embodiment one: as shown in Figure 1 and Figure 4, this structure bears stretch-draw counter-force (right side of Fig. 1) by the inner face of strand tapered anchorage.Selection cross section specification is the fiberboard 20 of 50mm × 3mm, with the chuck body 10 with trapezoidal shape through hole 12 that thickness is 50mm, processing wedged intermediate plate 30 simultaneously, and in chuck body 10 and intermediate plate 30, distinguish chamfering structure 121 and the outer chamfering structure 301 of circular arc in Machining Arc.Being penetrated by fiberboard 20 offers in the chuck body 10 of trapezoidal shape through hole 12, after intermediate plate 30 surface smear bonding adhesive, two intermediate plates 30 are filled in respectively trapezoidal shape through hole 12 be positioned at above fiberboard 20 with fiberboard 20 below space, jack unit is utilized to carry out synchronous wedging to two intermediate plates 30 afterwards, finally carry out maintenance at normal temperatures, treat that namely adhesive solidification makes assembly available.After tested, the limiting damage load of this fiberboard assembly in more than 375kN, hot strength at more than 2500MPa, fibrous plate ultimate strength is 2600MPa, anchoring efficiency and timber intensity and assembly intensity ratio are greater than 0.95, and failure mode is fiberboard fracture, strand tapered anchorage is without damage.
Embodiment two: as shown in Figure 2 and Figure 4, this structure bears stretch-draw counter-force by multiple anchoring preformed hole 11 Corner cracks of strand tapered anchorage.Selection cross section specification is the fiberboard 20 of 80mm × 2mm, with the chuck body 10 with trapezoidal shape through hole 12 and 4 anchoring preformed holes 11 that thickness is 50mm, processing wedged intermediate plate 30 simultaneously, and in chuck body 10 and intermediate plate 30, distinguish chamfering structure 121 and the outer chamfering structure 301 of circular arc in Machining Arc.Fiberboard 20 is penetrated the chuck body 10 offering trapezoidal shape through hole 12, after intermediate plate 30 surface smear bonding adhesive, two intermediate plates 30 are filled in respectively trapezoidal shape through hole 12 be positioned at above fiberboard 20 with fiberboard 20 below space, jack unit is utilized to carry out synchronous wedging to two intermediate plates 30 afterwards, finally carry out maintenance at normal temperatures, treat that namely adhesive solidification makes assembly available.After tested, this fiberboard assembly limiting damage load is in more than 400kN, hot strength at more than 2500MPa, and fibrous plate ultimate strength is 2600MPa, and anchoring efficiency and timber intensity and assembly intensity ratio are greater than 0.95, and failure mode is fiberboard fracture, strand tapered anchorage is without damage.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various change or modification to the utility model embodiment according to content disclosed in application documents and not depart from spirit and scope of the present utility model.
Claims (10)
1. a strand tapered anchorage, is characterized in that, comprising:
Chuck body, described chuck body offers the trapezoidal shape through hole worn for fiberboard;
Two intermediate plates, it is located in described trapezoidal shape through hole, and described fiberboard is folded between described two intermediate plates;
The one side that described intermediate plate contacts with described fiberboard is provided with friction recess.
2. strand tapered anchorage according to claim 1, is characterized in that, described friction recess is strip groove, grid groove or multiple concave point.
3. strand tapered anchorage according to claim 1 and 2, is characterized in that, the one side that described intermediate plate contacts with described fiberboard is coated with adhesive layer.
4. strand tapered anchorage according to claim 1, is characterized in that, is provided with chamfering structure in circular arc in described trapezoidal shape through hole, described intermediate plate is provided with the outer chamfering structure of circular arc, and the outer chamfering structure of described circular arc matches with chamfering structure in described circular arc.
5. strand tapered anchorage according to claim 1, is characterized in that, described chuck body offers multiple anchoring preformed hole.
6. strand tapered anchorage according to claim 5, is characterized in that, the axis direction of described anchoring preformed hole is mutually vertical with the axis direction of described trapezoidal shape through hole.
7. strand tapered anchorage according to claim 5, is characterized in that, multiple described anchoring preformed hole is symmetricly set in described chuck body.
8. strand tapered anchorage according to claim 1, is characterized in that, the thickness h≤50mm of described chuck body.
9. strand tapered anchorage according to claim 1, is characterized in that, described intermediate plate is wedge shape, and the angle of wedge of described wedge shape is 1 ° to 10 °.
10. strand tapered anchorage according to claim 1, is characterized in that, the halfpace bottom surface of described trapezoidal shape through hole is towards the draw direction of described fiberboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478503.5U CN204023888U (en) | 2014-08-22 | 2014-08-22 | Strand tapered anchorage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478503.5U CN204023888U (en) | 2014-08-22 | 2014-08-22 | Strand tapered anchorage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204023888U true CN204023888U (en) | 2014-12-17 |
Family
ID=52063773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420478503.5U Active CN204023888U (en) | 2014-08-22 | 2014-08-22 | Strand tapered anchorage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204023888U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301637A (en) * | 2018-04-12 | 2018-07-20 | 贝正河北工程技术有限公司 | A kind of pre-stressed carbon fiber plate wedge shape anchorage |
| CN113431368A (en) * | 2021-06-30 | 2021-09-24 | 中国建筑第八工程局有限公司 | Pre-tightening force applying device of anchorage device and using method thereof |
-
2014
- 2014-08-22 CN CN201420478503.5U patent/CN204023888U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108301637A (en) * | 2018-04-12 | 2018-07-20 | 贝正河北工程技术有限公司 | A kind of pre-stressed carbon fiber plate wedge shape anchorage |
| CN113431368A (en) * | 2021-06-30 | 2021-09-24 | 中国建筑第八工程局有限公司 | Pre-tightening force applying device of anchorage device and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ACADEMY OF RAILWAY SCIENCES Effective date: 20150514 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150514 Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 Patentee after: Railway Construction Institute of China Academy of Railway Sciences Patentee after: China Academy of Railway Sciences Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Patentee before: Railway Construction Institute of China Academy of Railway Sciences |