CN111842722A - Steel strand pier head - Google Patents
Steel strand pier head Download PDFInfo
- Publication number
- CN111842722A CN111842722A CN202010891226.0A CN202010891226A CN111842722A CN 111842722 A CN111842722 A CN 111842722A CN 202010891226 A CN202010891226 A CN 202010891226A CN 111842722 A CN111842722 A CN 111842722A
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- arc
- shaped head
- head
- wire
- shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F5/00—Upsetting wire or pressing operations affecting the wire cross-section
- B21F5/005—Upsetting wire
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- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a steel strand pier head, which comprises an anchor plate, wherein a middle wire is arranged in the middle of the anchor plate in the vertical direction, a plurality of edge wires which are arranged circumferentially are arranged on the periphery of the middle wire, the edge wires wrap and fasten the middle wire, the upper end of the middle wire is provided with an arc-shaped first arc-shaped head, the upper end of the edge wire is provided with a second arc-shaped head, the first arc-shaped head and the second arc-shaped head can be supported by the middle wire and the side wire, the first arc-shaped head and the second arc-shaped head are fixed, the first arc-shaped head and the second arc-shaped head clamp a working part, the middle wire, the side wire, the first arc-shaped head and the second arc-shaped head are used in a tight fit mode, the first arc-shaped head and the second arc-shaped head are under the action of tension, the stress strength of a pier head is enhanced, the service life is prolonged, the upset head of the whole bundle of steel strands is realized, and meanwhile, a new way for connecting the steel strands is added.
Description
Technical Field
The invention relates to the technical field of steel strands, in particular to a steel strand pier head.
Background
The heading is that the end of the steel bar is thickened by using pressure, cold heading and hot heading are commonly used, and the existing high-strength steel bar heading only has a single wire and does not have the heading of a whole bundle of steel strands.
Disclosure of Invention
The invention aims to solve the technical problems of improving the strength of a pier head and prolonging the service life, and provides a steel strand pier head to solve the problems.
The object of the invention is achieved in the following way:
a steel strand pier head comprises an anchor plate, wherein a middle wire is arranged in the middle of the anchor plate in the vertical direction, a plurality of edge wires which are arranged circumferentially are arranged on the periphery of the middle wire, the middle wire is wrapped and fastened by the edge wires, a first arc-shaped head is arranged at the upper end of the middle wire, a second arc-shaped head is arranged at the upper end of the edge wire, and the second arc-shaped head is arranged around the first arc-shaped head in a clockwise rotating mode.
The edge wire and the middle wire are obliquely arranged, and the edge wire rotates and inclines along the clockwise direction.
The included angle between the middle wire and the side wire is 50-60 degrees.
The second arc-shaped head is arranged around the central filament in a hemispherical shape at a helix angle of 60-80 degrees.
The end parts of the second arc-shaped head and the first arc-shaped head are both positioned on the same spherical surface.
Compared with the prior art, the steel strand connection device has the advantages that the first arc-shaped head and the second arc-shaped head can be supported through the middle wire and the side wire, the first arc-shaped head and the second arc-shaped head are fixed, the first arc-shaped head and the second arc-shaped head clamp a working part, the middle wire, the side wire, the first arc-shaped head and the second arc-shaped head are used in a closely matched mode, the first arc-shaped head and the second arc-shaped head are under the action of tension, the stress strength of a pier head is enhanced, the service life is prolonged, the upset head of the whole bundle of steel strands is achieved, and meanwhile, a new way for connecting the steel strands is added.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of the installation of the middle wire and the side wire.
Fig. 4 is a schematic view of the first and second arcuate heads.
The anchor plate comprises an anchor plate 1, a middle wire 2, a first arc-shaped head 3, a side wire 4 and a second arc-shaped head 5.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
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 and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.
As shown in the attached drawings 1 to 4, the steel strand pier head comprises an anchor plate 1, wherein a middle wire 2 is arranged in the middle of the anchor plate 1 in the vertical direction, a plurality of side wires 4 which are arranged circumferentially are arranged on the periphery of the middle wire 2, the side wires 4 wrap and fasten the middle wire 2, an arc-shaped first arc-shaped head 3 is arranged at the upper end of the middle wire 2, a second arc-shaped head 5 is arranged at the upper end of the side wire 4, the second arc-shaped head 5 is arranged around the first arc-shaped head 3 in a clockwise rotating mode, the middle wire 2 and the first arc-shaped head 3 are integrated, the side wires 4 and the second arc-shaped head 5 are integrated, the middle wire 2 and the side wires 4 are mainly used for fixing the first arc-shaped head 3 and the second arc-shaped head 5, and the peripheries of the first arc-shaped head 3 and the second arc-shaped head 5 form a hemispherical mushroom-shaped upset head around.
The side wires 4 and the middle wires 2 are obliquely arranged, the side wires 4 rotate and incline in the clockwise direction, the side wires 4 are spirally arranged and are tightly attached to each other, the side wires incline around the middle wires 2 in a rotating state, the middle wires 2 are surrounded by clusters, and gaps are not reserved.
The included angle between the middle wire 2 and the side wires 4 is 50-60 degrees, as shown in figure 1, six side wires 4 are arranged, the side wires 4 are tightly rotated around the middle wire 2 and are obliquely arranged, and the included angle is 50-60 degrees, so that the middle wire 2 is ensured to be wrapped.
The second arc-shaped head 5 is arranged around the central filament 2 in a hemispherical shape at a helix angle of 60-80 degrees, the second arc-shaped head 5 is arranged at the helix angle, and the first arc-shaped head 3 and the second arc-shaped head form a sphere, namely a mushroom head shape.
The ends of the second arc-shaped head 5 and the first arc-shaped head 3 are positioned on the same spherical surface, so that the first arc-shaped head 3 and the second arc-shaped head 5 are ensured to be spherical.
The middle wires 2 are closely arranged, the side wires 4 fill the middle space and increase the strength of the middle wires, the middle wires 2 and the side wires 4 are prestressed steel strands, the prestressed steel strands are stranded steel cables formed by 2, 3, 7 or 19 high-strength steel wires, and are subjected to stress relief treatment (stabilization treatment), so that the prestressed concrete or similar purposes are realized.
The prestressed steel strand has the main characteristics of high strength, good relaxation performance and straightening performance when unfolded. Common tensile strength grades are 1860 mpa, and also strength grades such as 1720, 1770, 1960, 2000, 2100 mpa. The yield strength of this steel is also high.
Grade 2000 steel strand upset DTM 15.
The working process of the invention is as follows: when using, with well silk 2 and 4 fixed arrangement on anchor slab 1 of limit silk, fixed mode is the welding, and well silk 2 and 4 pass the work hole of limit silk, then carry out the operation through the pier nose machine centering silk 2 and 4 upper ends of limit silk, form first arc head 3 and second arc head 5, form hemispherical with first arc head 3 and second arc head 5.
According to the invention, the first arc-shaped head 3 and the second arc-shaped head 5 can be supported by the middle wire 2 and the side wire 4, the first arc-shaped head 3 and the second arc-shaped head 5 are fixed, the first arc-shaped head 3 and the second arc-shaped head 5 clamp the working part, the middle wire 2, the side wire 4, the first arc-shaped head 3 and the second arc-shaped head 5 are tightly matched for use, the first arc-shaped head 3 and the second arc-shaped head 5 are under the action of tension, the stress strength of the pier head is enhanced, and the service life is prolonged.
The invention can realize the heading of the whole bundle of steel strands through the cold heading of the steel strand heading device, and simultaneously increases a new way for connecting the steel strands.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (5)
1. The utility model provides a steel strand wires pier nose, includes anchor slab, its characterized in that: the middle of the anchor plate is provided with a middle wire in the vertical direction, a plurality of edge wires which are arranged circumferentially are arranged on the periphery of the middle wire, the edge wires wrap and fasten the middle wire, the upper end of the middle wire is provided with an arc-shaped first arc-shaped head, the upper end of each edge wire is provided with a second arc-shaped head, and the second arc-shaped heads are arranged around the first arc-shaped heads in a clockwise rotating mode.
2. The steel strand pier head of claim 1, wherein: the edge wire and the middle wire are obliquely arranged, and the edge wire rotates and inclines along the clockwise direction.
3. The steel strand pier head of claim 2, wherein: the included angle between the middle wire and the side wire is 50-60 degrees.
4. The steel strand pier head of claim 1, wherein: the second arc-shaped head is arranged around the central filament in a hemispherical shape at a helix angle of 60-80 degrees.
5. The steel strand pier head of claim 4, wherein: the end parts of the second arc-shaped head and the first arc-shaped head are both positioned on the same spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891226.0A CN111842722B (en) | 2020-08-30 | 2020-08-30 | Steel strand pier head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891226.0A CN111842722B (en) | 2020-08-30 | 2020-08-30 | Steel strand pier head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111842722A true CN111842722A (en) | 2020-10-30 |
| CN111842722B CN111842722B (en) | 2024-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010891226.0A Active CN111842722B (en) | 2020-08-30 | 2020-08-30 | Steel strand pier head |
Country Status (1)
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| CN (1) | CN111842722B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842722B (en) * | 2020-08-30 | 2024-08-27 | 尤加东 | Steel strand pier head |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2411934A1 (en) * | 1977-12-13 | 1979-07-13 | Holzmann Philipp Ag | Concrete reinforcing wire stranded steel cable anchor - is pear shaped with limited initial bend radius and hooked bent end |
| CA1198034A (en) * | 1982-03-05 | 1985-12-17 | Dieter Jungwirth | Method of and apparatus for forming an outwardly projecting bulge in a steel wire strand for forming an anchor in concrete |
| AU4621589A (en) * | 1988-11-14 | 1990-06-12 | Garford Pty Ltd | Improved rock anchor and method of manufacture |
| EP0442935A1 (en) * | 1988-11-14 | 1991-08-28 | Garford Pty Ltd | Improved rock anchor and method of manufacture. |
| JPH11117456A (en) * | 1997-10-13 | 1999-04-27 | Dps Bridge Works Co Ltd | Fixed section structure for pc steel stranded wire |
| CN201942937U (en) * | 2011-01-18 | 2011-08-24 | 河北景鹏预应力钢绞线有限公司 | Prestress steel stranded wire |
| WO2011104887A1 (en) * | 2010-02-23 | 2011-09-01 | 東京製綱株式会社 | Device for producing wire rope |
| KR101431679B1 (en) * | 2013-09-03 | 2014-08-22 | (주)호산이엔씨 | A Bulb Assembly for Steel Strand |
| CN205195210U (en) * | 2015-12-11 | 2016-04-27 | 广州电力设计院 | Protector for air wire |
| CN205330006U (en) * | 2015-11-20 | 2016-06-22 | 重庆市春鹏预应力钢绞线有限公司 | Novel spiral prestress wire for building |
| CN106040915A (en) * | 2016-08-23 | 2016-10-26 | 深圳市泽宇自动化设备有限公司 | Twist copper wire arching device |
| CN207481545U (en) * | 2017-08-24 | 2018-06-12 | 河北科技大学 | A kind of Novel iron basket |
| CN108716150A (en) * | 2018-06-08 | 2018-10-30 | 同济大学 | A kind of high temperature resistant prestress wire |
| CN210848160U (en) * | 2019-09-30 | 2020-06-26 | 江苏龙城精锻有限公司 | Die structure for bar axial extrusion local upsetting deformation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842722B (en) * | 2020-08-30 | 2024-08-27 | 尤加东 | Steel strand pier head |
-
2020
- 2020-08-30 CN CN202010891226.0A patent/CN111842722B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2411934A1 (en) * | 1977-12-13 | 1979-07-13 | Holzmann Philipp Ag | Concrete reinforcing wire stranded steel cable anchor - is pear shaped with limited initial bend radius and hooked bent end |
| CA1198034A (en) * | 1982-03-05 | 1985-12-17 | Dieter Jungwirth | Method of and apparatus for forming an outwardly projecting bulge in a steel wire strand for forming an anchor in concrete |
| AU4621589A (en) * | 1988-11-14 | 1990-06-12 | Garford Pty Ltd | Improved rock anchor and method of manufacture |
| EP0442935A1 (en) * | 1988-11-14 | 1991-08-28 | Garford Pty Ltd | Improved rock anchor and method of manufacture. |
| JPH11117456A (en) * | 1997-10-13 | 1999-04-27 | Dps Bridge Works Co Ltd | Fixed section structure for pc steel stranded wire |
| WO2011104887A1 (en) * | 2010-02-23 | 2011-09-01 | 東京製綱株式会社 | Device for producing wire rope |
| CN201942937U (en) * | 2011-01-18 | 2011-08-24 | 河北景鹏预应力钢绞线有限公司 | Prestress steel stranded wire |
| KR101431679B1 (en) * | 2013-09-03 | 2014-08-22 | (주)호산이엔씨 | A Bulb Assembly for Steel Strand |
| CN205330006U (en) * | 2015-11-20 | 2016-06-22 | 重庆市春鹏预应力钢绞线有限公司 | Novel spiral prestress wire for building |
| CN205195210U (en) * | 2015-12-11 | 2016-04-27 | 广州电力设计院 | Protector for air wire |
| CN106040915A (en) * | 2016-08-23 | 2016-10-26 | 深圳市泽宇自动化设备有限公司 | Twist copper wire arching device |
| CN207481545U (en) * | 2017-08-24 | 2018-06-12 | 河北科技大学 | A kind of Novel iron basket |
| CN108716150A (en) * | 2018-06-08 | 2018-10-30 | 同济大学 | A kind of high temperature resistant prestress wire |
| CN210848160U (en) * | 2019-09-30 | 2020-06-26 | 江苏龙城精锻有限公司 | Die structure for bar axial extrusion local upsetting deformation |
Non-Patent Citations (1)
| Title |
|---|
| 杨吉新等: "《混凝土结构》", 31 August 2007, 武汉理工大学出版社, pages: 164 - 165 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842722B (en) * | 2020-08-30 | 2024-08-27 | 尤加东 | Steel strand pier head |
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| Publication number | Publication date |
|---|---|
| CN111842722B (en) | 2024-08-27 |
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