CN101029531A - Steel fibre with multi-anchor fixed point - Google Patents
Steel fibre with multi-anchor fixed point Download PDFInfo
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- CN101029531A CN101029531A CN 200710051790 CN200710051790A CN101029531A CN 101029531 A CN101029531 A CN 101029531A CN 200710051790 CN200710051790 CN 200710051790 CN 200710051790 A CN200710051790 A CN 200710051790A CN 101029531 A CN101029531 A CN 101029531A
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- anchoring section
- steel fibre
- section
- fixed point
- plane
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Abstract
A steel fiber with multi anchor points includes a middle section with two ends fixed with the first anchor zone extruded out of the first plane, a second anchor zone connected to the first one in an obtuse angle, a third anchor zone connected to the second one with an angle, which is extruded from the second plane.
Description
Technical field
The invention belongs to the attached material of building, be specifically related to the steel fibre in a kind of concrete.
Background technology
Steel fibre has been widely used in the concrete, to strengthen concrete fracture resistance and cracking performance.Existing steel fibre has two kinds of form of structure, a kind of is end hook shape and shield bell shape, the steel fibre two ends of these two kinds of structures respectively have only an anchoring section, promptly only form an anchor point, this steel fibre and concrete bond stress and anchored force are less, and be limited to increasing concrete fracture resistance and cracking performance.Existing a kind of ball trace type steel fibre patented product, it is the concavo-convex ball trace that distributes at the two ends of steel fibre principal piece, it is to form anchor point at the position of ball trace, promptly a ball trace position forms an anchor point, form a plurality of anchor points, just must establish a plurality of ball traces, and all in the same side of principal piece.Holding capacity is better in this plane like this, and the holding capacity in other planes is limited.
Summary of the invention
Purpose of the present invention is to provide a kind of steel fibre with multi-anchor fixed point, to address the above problem.
Technical scheme of the present invention is: the steel fibre with multi-anchor fixed point: it comprises middle connecting segment, first anchoring section that protrudes from middle connecting segment that all has in first plane is established at the two ends of middle connecting segment, what be connected with first anchored end has second anchoring section, the angle that has an obtuse angle between the axis of second anchoring section and first anchoring section, what be connected with second anchoring section has the 3rd anchoring section, have an angle between the axis of the 3rd anchoring section and second anchoring section, the 3rd anchoring section at the second plane convex for second anchoring section.
Described middle connecting segment cross section forms by circular cross-section is cold rolling
This steel fibre is provided with three anchoring sections separately at the two ends of middle connecting segment, forms three anchor points, and first anchor point and second anchor point have improved the supporting capacity of steel fibre in Different Plane not in same plane.Middle connecting segment has improved 10 by the tensile strength of cold rolling back steel fibre on raw-material intensity basis simultaneously.Bond stress and the anchored force of this steel fibre in concrete is fully used, and more helps improving concrete fracture resistance and cracking performance.This steel fibre the construction whipping process in and the construction course of injection in workability good, no conglomeration, steel fibre can be not stretching in concrete.
Description of drawings
The steel fibre master that Fig. 1 has multi-anchor fixed point looks schematic diagram.
Fig. 2 has the attached schematic diagram of looking of steel fibre of multi-anchor fixed point.
The specific embodiment
As shown in Figure 1, the cross section of steel fibre middle connecting segment 1 is flat straight shape, form by cold rolling by circular cross-section, establish at the two ends of middle connecting segment 1 all first anchoring section 2 that protrudes from middle connecting segment, be that vertical plane is connected or the inclined-plane connects between first anchoring section 2 and the middle connecting segment 1, present embodiment adopts the inclined-plane to connect 3 transition.The projection of first anchoring section 2 is at vertical plane.The cross section of first anchoring section 2 is circular.Have the angle at an obtuse angle between the axis that second anchoring section, 5, the second anchoring sections 5 and first anchoring section 2 are arranged that is connected with first anchoring section 2, angle is 120～150 °: the cross section of second anchoring section 5 is for circular; Have an angle between the axis that the 3rd anchoring section 6, the three anchoring sections 6 and second anchoring section 5 are arranged that is connected with second anchoring section 5, angle is 120～150 °.This angle can be acute angle, right angle or obtuse angle, adopts the obtuse angle in the present embodiment.This section is parallel with interlude.As shown in Figure 2, for second anchoring section, promptly convex is for second anchoring section in horizontal plane for the 3rd anchoring section at the second plane convex for the 3rd anchoring section, and the cross section of the 3rd anchoring section also is to form by circular cross-section is cold rolling.Above-mentioned three anchoring sections can form five anchor points in concrete, promptly anchor point 7,8,9,10,11.
Claims (6)
1, a kind of steel fibre with multi-anchor fixed point, it comprises middle connecting segment, first anchoring section that protrudes from middle connecting segment that all has in first plane is established at the two ends that it is characterized in that middle connecting segment, what be connected with first anchored end has second anchoring section, the angle that has an obtuse angle between the axis of second anchoring section and first anchoring section, what be connected with second anchoring section has the 3rd anchoring section, have an angle between the axis of the 3rd anchoring section and second anchoring section, the 3rd anchoring section at the second plane convex for second anchoring section.
2, the steel fibre that has multi-anchor fixed point according to claim 1 is characterized in that between first anchoring section and the middle connecting segment it being that vertical plane is connected or the inclined-plane connects.
3, the steel fibre that has multi-anchor fixed point according to claim 1 is characterized in that the angle between the axis of the 3rd anchoring section and second anchoring section is the obtuse angle.
4, the steel fibre that has multi-anchor fixed point according to claim 1 is characterized in that the middle connecting segment cross section forms by circular cross-section is cold rolling.
5, the steel fibre that has multi-anchor fixed point according to claim 1 is characterized in that having between the axis of second anchoring section and first anchoring section angle at an obtuse angle.
6, the steel fibre that has multi-anchor fixed point according to claim 1 is characterized in that described first plane is vertical with second plane.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710051790 CN101029531A (en) | 2007-03-30 | 2007-03-30 | Steel fibre with multi-anchor fixed point |
| CNA2007101036123A CN101122161A (en) | 2007-03-30 | 2007-04-30 | Steel fibre with multi-anchor fixed point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710051790 CN101029531A (en) | 2007-03-30 | 2007-03-30 | Steel fibre with multi-anchor fixed point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101029531A true CN101029531A (en) | 2007-09-05 |
Family
ID=38715065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710051790 Pending CN101029531A (en) | 2007-03-30 | 2007-03-30 | Steel fibre with multi-anchor fixed point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101029531A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672575A (en) * | 2016-01-21 | 2016-06-15 | 武汉新途工程新材料科技有限公司 | Multi-anchoring-point steel fiber repeatedly changeable in section shape |
| CN107739164A (en) * | 2017-11-30 | 2018-02-27 | 中南大学 | A kind of spiral steel fibre of end anchor type and its make processing method |
| CN109896792A (en) * | 2019-03-27 | 2019-06-18 | 中国建筑材料科学研究总院有限公司 | Bionical fiber type and concrete and building comprising it |
-
2007
- 2007-03-30 CN CN 200710051790 patent/CN101029531A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672575A (en) * | 2016-01-21 | 2016-06-15 | 武汉新途工程新材料科技有限公司 | Multi-anchoring-point steel fiber repeatedly changeable in section shape |
| CN107739164A (en) * | 2017-11-30 | 2018-02-27 | 中南大学 | A kind of spiral steel fibre of end anchor type and its make processing method |
| CN107739164B (en) * | 2017-11-30 | 2022-12-16 | 中南大学 | End-anchored spiral steel fiber and manufacturing and processing method thereof |
| CN109896792A (en) * | 2019-03-27 | 2019-06-18 | 中国建筑材料科学研究总院有限公司 | Bionical fiber type and concrete and building comprising it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |