CN211035718U - Three-dimensional steel fiber for concrete - Google Patents
Three-dimensional steel fiber for concrete Download PDFInfo
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- CN211035718U CN211035718U CN201921932801.6U CN201921932801U CN211035718U CN 211035718 U CN211035718 U CN 211035718U CN 201921932801 U CN201921932801 U CN 201921932801U CN 211035718 U CN211035718 U CN 211035718U
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Abstract
The utility model discloses a three-dimensional steel fiber for concrete, which comprises a first anchoring section (1) of a straight section, wherein two ends of the first anchoring section (1) are bent towards opposite directions to form 2 inclined second anchoring sections (2), the tail ends of the 2 second anchoring sections (2) are bent towards opposite directions to form 2 inclined third anchoring sections (3), and the tail ends of the 2 third anchoring sections are bent towards opposite directions to form 2 inclined fourth anchoring sections (4); at either end, the plane formed by the second anchoring section (2) and the first anchoring section (1), the plane formed by the second anchoring section (2) and the third anchoring section (3), and the plane formed by the third anchoring section (3) and the fourth anchoring section (4) are all non-parallel in pairs; the problems of poor anti-cracking and toughening effects caused by weak bonding between the steel fibers and the concrete when the existing steel fibers are applied to the concrete are solved, and the anti-cracking performance and the toughening effect of the concrete can be effectively improved.
Description
Technical Field
The utility model relates to a fields such as building engineering material technique, specific theory is a three-dimensional steel fibre for concrete.
Background
With the development of concrete technology, higher requirements are put on the performance of modern concrete. Particularly, along with the improvement of the compressive strength of concrete, the requirements on the cracking resistance, the deformation resistance, the toughening performance and the like are increasingly remarkable. The preparation method adopts various mineral admixtures, concrete chemical admixtures, various fiber materials and the like to become the key technical means for preparing the high-performance concrete and the ultrahigh-performance concrete at present, particularly, steel fibers are doped into the concrete, so that the toughness and the crack resistance of the concrete can be improved, the defect of high brittleness of the high-strength concrete is overcome, and the preparation method is widely applied to the aspects of roads, bridges, water conservancy, military engineering and the like at present.
The conventional steel fibers can be divided into linear type and special type in appearance, compared with the linear type, the special-shaped steel fibers are basically in a two-dimensional plane, a concrete structure belongs to a three-dimensional structure, the bonding effect between a single linear type or plane type steel fiber and a concrete matrix cannot be fully exerted, the bond strength in the concrete is weaker, the cracking resistance and the deformation resistance of the concrete are poorer, and the requirements of some key construction projects cannot be met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to design a three-dimensional steel fibre for concrete, when solving current steel fibre and being applied to the concrete, the not strong and anti and the not good problem of effect of toughening that leads to of adhesive action between steel fibre and the concrete, its anti crack resistance and the effect of toughening that can effectual improvement concrete.
The utility model discloses a following technical scheme realizes: a three-dimensional steel fiber for concrete is formed by processing steel fibers and comprises a first anchoring section of a straight section, wherein two ends of the first anchoring section are bent towards opposite directions to form 2 inclined second anchoring sections, the tail ends of the 2 second anchoring sections are bent towards opposite directions to form 2 inclined third anchoring sections, and the tail ends of the 2 third anchoring sections are bent towards opposite directions to form 2 inclined fourth anchoring sections; at either end, the plane formed by the second and first anchoring sections, the plane formed by the second and third anchoring sections, and the plane formed by the third and fourth anchoring sections are all non-parallel in pairs.
Further for realizing better the utility model discloses, adopt the following structure that sets up very much: the included angle between the first anchoring section and the second anchoring section is 110-140 degrees, the included angle between the third anchoring section and the second anchoring section is 40-70 degrees, and the included angle between the third anchoring section and the fourth anchoring section is 40-70 degrees.
Further for realizing better the utility model discloses, adopt the following structure that sets up very much: the length of the first anchoring section is 3/5 of the total length of the whole three-dimensional steel fiber, and the length of the second anchoring section, the third anchoring section and the fourth anchoring section is equal.
Further for realizing better the utility model discloses, adopt the following structure that sets up very much: the radial cross section of the first anchoring section is oval, and the radial cross sections of the second anchoring section, the third anchoring section and the fourth anchoring section are oval or circular.
Further for realizing better the utility model discloses, adopt the following structure that sets up very much: the diameters or long axes of the first anchoring section, the second anchoring section, the third anchoring section and the fourth anchoring section are 0.5-1.0 mm.
Further for realizing better the utility model discloses, adopt the following structure that sets up very much: the length-diameter ratio of the second anchoring section, the third anchoring section and the fourth anchoring section is 40-70.
Further for better realizing the utility model discloses, adopt the following mode of setting very much: the steel fiber of the three-dimensional steel fiber is a steel wire with the tensile strength of more than or equal to 800 MPa.
In particular, in the present technical solution, terms such as "connect", "fix", "set", "movably connect", and "movably connect" related to the mechanical structure are all technical means for conventional setting in the mechanical field, and can be used as long as the purpose of fixing, connecting, or movably setting can be achieved, so that no specific limitation is made in the text (for example, nuts and screws are used to cooperate to perform movable or fixed connection, bolts are used to perform movable or fixed connection, and a detachable connection between an object a and an object B is achieved by means of clamping, and the like).
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model provides a when current steel fibre is applied to the concrete, the not strong and anti not good problem of effect of toughening of anti and the toughening that leads to of the adhesive action between steel fibre and the concrete, its anti crack performance and the effect of toughening that can effectual improvement concrete.
The utility model discloses compare with general shape with material steel fiber structure, for space three-dimensional structure, have a plurality of anchor sections, mix the concrete, the effect of each section of steel fiber can be given play to the abundant, increases the anchor point of steel fiber and base member, obviously improves the bond strength with the concrete base member, reduces the concrete fracture risk, and the concrete comprehensive properties is showing and is improving.
The utility model discloses easily disperse at the concrete mixing in-process, have good constructability, can obviously improve concrete structure's durability, improve the in service life-span of concrete.
Drawings
Fig. 1 is a front view of the present invention.
Wherein, 1-the first anchoring section, 2-the second anchoring section, 3-the third anchoring section, and 4-the fourth anchoring section.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
It is worth noting that: in the present application, when it is necessary to apply the known technology or the conventional technology in the field, the applicant may have the case that the known technology or/and the conventional technology is not specifically described in the text, but the technical means is not specifically disclosed in the text, and the present application is considered to be not in compliance with the twenty-sixth clause of the patent law.
Example 1:
the utility model provides a three-dimensional steel fibre for concrete, when solving current steel fibre and being applied to the concrete, the not strong and anti and the not good problem of effect of toughening that leads to of adhesive action between steel fibre and the concrete, its anti crack resistance and the effect of toughening that can effectual improvement concrete, as shown in figure 1, adopt following mode of setting very much: the steel fiber reinforced concrete anchor is formed by processing steel fibers and comprises a first anchoring section 1 of a straight section, 2 inclined second anchoring sections 2 are formed by bending two ends of the first anchoring section 1 in opposite directions, 2 inclined third anchoring sections 3 are formed by bending the tail ends of the 2 second anchoring sections 2 in opposite directions, and 2 inclined fourth anchoring sections 4 are formed by bending the tail ends of the 2 third anchoring sections in opposite directions; at either end, the plane formed by the second anchoring section 2 and the first anchoring section 1, the plane formed by the second anchoring section 2 and the third anchoring section 3, and the plane formed by the third anchoring section 3 and the fourth anchoring section 4 are non-parallel, two by two.
As a preferred arrangement, the three-dimensional steel fiber comprises a first anchoring section 1 which is a straight section, and 2 inclined second anchoring sections 2 are formed by bending two ends of the first anchoring section 1 in opposite directions, that is, at two ends of the first anchoring section 1, the steel fiber is bent in two opposite directions (for example, one end is upward, and the other corresponding end is downward) to form the second anchoring section 2; the tail ends of the 2 second anchoring sections 2 are also bent in the opposite direction to form 2 inclined third anchoring sections 3, that is, the tail ends of the two second anchoring sections 2 are respectively bent in the opposite direction (for example, the tail end of the corresponding second anchoring section 2 is bent forwards, and the tail end of the corresponding second anchoring section 2 is bent backwards when the tail end of the first second anchoring section 2 is bent forwards), so as to form one third anchoring section 3; the end of the 2 third anchoring sections is bent with 2 inclined fourth anchoring sections 4 in opposite directions, that is, the end of each of the two third anchoring sections 3 is bent in opposite directions (for example, the end of the first third anchoring section 3 is bent to the left, and the end of the corresponding second third anchoring section 3 is bent to the right), so as to form a fourth anchoring section 4, and at any end, the plane formed by the second anchoring section 2 and the first anchoring section 1, the plane formed by the second anchoring section 2 and the third anchoring section 3, and the plane formed by the third anchoring section 3 and the fourth anchoring section 4 are all non-parallel.
Example 2:
this embodiment is further optimized on the basis of the above-mentioned embodiment, and the same parts as the above-mentioned technical solution will not be described herein again, as shown in fig. 1, the further following setting structure is particularly adopted for better realizing the utility model discloses: the included angle between the first anchoring section 1 and the second anchoring section 2 is 110-140 degrees, the included angle between the third anchoring section 3 and the second anchoring section 2 is 40-70 degrees, and the included angle between the third anchoring section 3 and the fourth anchoring section 4 is 40-70 degrees.
Example 3:
this embodiment is further optimized on the basis of any of the above-mentioned embodiments, and the same parts as the above-mentioned technical solutions will not be described herein again, as shown in fig. 1, the further following setting structure is particularly adopted for better realizing the utility model discloses: the length of the first anchoring section 1 is 3/5 of the total length of the whole three-dimensional steel fiber, and the lengths of the second anchoring section 2, the third anchoring section 3 and the fourth anchoring section 4 are equal.
Example 4:
this embodiment is further optimized on the basis of any of the above-mentioned embodiments, and the same parts as the above-mentioned technical solutions will not be described herein again, as shown in fig. 1, the further following setting structure is particularly adopted for better realizing the utility model discloses: the radial cross section of the first anchoring section 1 is oval, and the radial cross sections of the second anchoring section 2, the third anchoring section 3 and the fourth anchoring section 4 are oval or circular.
Example 5:
this embodiment is further optimized on the basis of any of the above-mentioned embodiments, and the same parts as the above-mentioned technical solutions will not be described herein again, as shown in fig. 1, the further following setting structure is particularly adopted for better realizing the utility model discloses: the diameters or long axes of the first anchoring section 1, the second anchoring section 2, the third anchoring section 3 and the fourth anchoring section 4 are 0.5-1.0 mm.
Example 6:
this embodiment is further optimized on the basis of any of the above-mentioned embodiments, and the same parts as the above-mentioned technical solutions will not be described herein again, as shown in fig. 1, the further following setting structure is particularly adopted for better realizing the utility model discloses: the length-diameter ratio of the second anchoring section 2, the third anchoring section 3 and the fourth anchoring section 4 is 40-70.
Example 7:
this embodiment is further optimized on the basis of any of the above-mentioned embodiments, and the same parts as the above-mentioned technical solutions will not be described herein again, as shown in fig. 1, the following setting modes are particularly adopted for further better implementing the present invention: the steel fiber of the three-dimensional steel fiber is a steel wire with the tensile strength of more than or equal to 800 MPa.
Example 8:
this embodiment is further optimized on the basis of any of the above embodiments, as shown in fig. 1, a three-dimensional steel fiber for concrete, in which the definitions of "up" and "down" as directions are relative to the front view (fig. 1).
Cutting off a steel wire with the diameter of 0.5-1.0 mm and the tensile strength of more than or equal to 800MPa to obtain a fiber with a certain length, horizontally placing the fiber, respectively bending the two ends of the steel fiber downwards and upwards to form an included angle of 110-140 degrees with a first anchoring section 1, wherein a second anchoring section 2 is arranged from the tail end of the first anchoring section 1 to 1/3 of the bending section, respectively bending upwards and downwards at 1/3 of the two bending sections, and finally respectively bending downwards and upwards at 2/3 of the two bending sections to obtain a third anchoring section (a line segment from 1/3 to 2/3) 3 and a fourth anchoring section (a line segment from 2/3 to the tail end of the bending section) 4; the included angle between the third anchoring section 3 and the plane where the first anchoring section 1 and the inclined second anchoring section 2 are located is 40-70 degrees; the included angle between the fourth anchoring section 4 and the third anchoring section is 40-70 degrees. The length of the first anchoring section 1 is 3/5 of the total length of the steel fiber, and the length of the second anchoring section 2 is equal to that of the third anchoring section 3 and the fourth anchoring section 4; compared with the steel fiber structure with the same material and the same shape, the steel fiber structure is a spatial three-dimensional structure, has a plurality of anchoring sections, can fully play the role of each section of the steel fiber when being doped into concrete, increases the anchoring points of the steel fiber and a matrix, obviously improves the bonding strength with the concrete matrix, reduces the cracking risk of the concrete, and obviously improves the comprehensive performance of the concrete; the concrete is easy to disperse in the concrete stirring process, has good construction performance, can obviously improve the durability of a concrete structure, and prolongs the service life of the concrete.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (7)
1. A three-dimensional steel fibre for concrete formed by machining steel fibre, characterised in that: the anchoring device comprises a first anchoring section (1) comprising a straight section, 2 inclined second anchoring sections (2) are formed by bending two ends of the first anchoring section (1) in opposite directions, 2 inclined third anchoring sections (3) are formed by bending the tail ends of the 2 second anchoring sections (2) in opposite directions, and 2 inclined fourth anchoring sections (4) are formed by bending the tail ends of the 2 third anchoring sections in opposite directions; at either end, the plane formed by the second anchoring section (2) and the first anchoring section (1), the plane formed by the second anchoring section (2) and the third anchoring section (3), and the plane formed by the third anchoring section (3) and the fourth anchoring section (4) are all non-parallel in pairs.
2. A three-dimensional steel fibre for concrete according to claim 1, characterised in that: the included angle between the first anchoring section (1) and the second anchoring section (2) is 110-140 degrees, the included angle between the third anchoring section (3) and the second anchoring section (2) is 40-70 degrees, and the included angle between the third anchoring section (3) and the fourth anchoring section (4) is 40-70 degrees.
3. A three-dimensional steel fibre for concrete according to claim 1, characterised in that: the length of the first anchoring section (1) is 3/5 of the total length of the whole three-dimensional steel fiber, and the lengths of the second anchoring section (2), the third anchoring section (3) and the fourth anchoring section (4) are equal.
4. A three-dimensional steel fibre for concrete according to claim 1, characterised in that: the radial cross section of the first anchoring section (1) is oval, and the radial cross sections of the second anchoring section (2), the third anchoring section (3) and the fourth anchoring section (4) are oval or circular.
5. A three-dimensional steel fibre for concrete according to claim 4, characterised in that: the diameter or the long axial length of the first anchoring section (1), the second anchoring section (2), the third anchoring section (3) and the fourth anchoring section (4) is 0.5-1.0 mm.
6. A three-dimensional steel fibre for concrete according to any one of claims 1 to 5, characterised in that: the length-diameter ratio of the second anchoring section (2), the third anchoring section (3) and the fourth anchoring section (4) is 40-70.
7. A three-dimensional steel fibre for concrete according to any one of claims 1 to 5, characterised in that: the steel fiber of the three-dimensional steel fiber is a steel wire with the tensile strength of more than or equal to 800 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932801.6U CN211035718U (en) | 2019-11-11 | 2019-11-11 | Three-dimensional steel fiber for concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921932801.6U CN211035718U (en) | 2019-11-11 | 2019-11-11 | Three-dimensional steel fiber for concrete |
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| CN211035718U true CN211035718U (en) | 2020-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118637849A (en) * | 2024-08-12 | 2024-09-13 | 玉田县致泰钢纤维制造有限公司 | Steel fiber for toughening concrete |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118637849A (en) * | 2024-08-12 | 2024-09-13 | 玉田县致泰钢纤维制造有限公司 | Steel fiber for toughening concrete |
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