CN206219875U

CN206219875U - A kind of surface is formed with the prestress wire of raised strips

Info

Publication number: CN206219875U
Application number: CN201621108289.XU
Authority: CN
Inventors: 蔺秀艳; 韩文铎; 李博; 潘捷; 王鸿利; 陈海祥; 毛爱菊; 董晨; 吕芳
Original assignee: TIANJIN METALLURGICAL GROUP FLOURISH STEEL INDUSTRIAL Co Ltd
Current assignee: Tianjin new Tiangang Zhongxing Shengda Co.,Ltd.
Priority date: 2016-10-10
Filing date: 2016-10-10
Publication date: 2017-06-06
Anticipated expiration: 2026-10-10

Abstract

The utility model is related to steel strand wires technical field, especially a kind of surface is formed with the prestress wire of raised strips, including 1 central hair and Duo Gen outer reinforcements, the outside of the central hair is uniformly stranded to be coated with the outer reinforcement, the outer reinforcement is in linear contact lay with the end face outside of central hair, the outer surface uniform intervals of the outer reinforcement make multiple raised strips, and the raised strips form angle with the axis direction of central hair, and the outer reinforcement section is the circle that outer rim is uniformly formed with multiple raised strips；The central hair uses plain bar, and the outer reinforcement quantity on the outside of the plain bar is 6；The outer rim of the every outer reinforcement is uniformly formed with 4 raised strips；The raised strips that the outer reinforcement outer surface is made are 27.5 degree to 28.5 degree with the angle that plain bar axis direction is formed.

Description

A kind of surface is formed with the prestress wire of raised strips

Technical field

The utility model is related to steel strand wires technical field, and especially a kind of surface is formed with the prestress wire of raised strips.

Background technology

Prestress wire is a kind of widely used metallic article, it is adaptable to prestressed concrete construction or similar use On the way, such as：Prestress wire is largely used in the fields such as the anchoring of rock paddy, mine support engineering and bridge construction, it is above-mentioned each Reinforcing bar or light round steel twisted wire are relatively often used in field, but as being continually changing for demand cannot meet with lifting, the said goods The requirement of site operation, its bond stress is not enough in use, the actual average of its maximum, force, regulation disproportional extending force reality The actual average of average, tensile strength, the actual average of elongation and relaxation rate aspect also have much room for improvement.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of bond stress is strong, and maximum, force is actual Value, the actual average of regulation disproportional extending force, the actual average of tensile strength, the actual average of elongation and relaxation rate aspect have aobvious Write the prestress wire that a kind of surface improved is formed with raised strips.

The utility model is achieved through the following technical solutions：

A kind of surface is formed with the prestress wire of raised strips, and its section is made up of two-layer reinforcing bar, it is characterised in that：Including 1 Root central hair and Duo Gen outer reinforcements, the outside of the central hair is uniformly stranded to be coated with the outer reinforcement, the outer layer steel Muscle is in linear contact lay with the end face outside of central hair, and the outer surface uniform intervals of the outer reinforcement make multiple raised strips, described Raised strips form angle with the axis direction of central hair, and the outer reinforcement section is the circle that outer rim is uniformly formed with multiple raised strips.

And, the central hair uses plain bar, and the outer reinforcement quantity on the outside of the plain bar is 6.

And, the outer rim of the every outer reinforcement is uniformly formed with 4 raised strips.

And, the angle that the raised strips that the outer reinforcement outer surface is made are formed with plain bar axis direction is 27.5 degree to 28.5 degree.

And, raised strips are integrally made to use and are connected without corner angle with outer reinforcement, the bottom that the raised strips are connected with outer reinforcement Portion is formed with uniform radian, and the width of the raised strips is less than and the spacing between adjacent raised strips.

And, the nominal diameter of the outer reinforcement is 7.18mm.

And, the nominal diameter of the plain bar is 7.28mm.

And, raised strips width in axial direction is 1.8 to 2.0mm.

And, the radial thickness of the raised strips is 0.1 to 0.2mm.

Advantage of the present utility model and good effect are：

In this steel strand wires, the respective outer side edges outer reinforcement outer surface using 1 plain bar and 6 outer reinforcements is uniform The raised strips made of interval, the angle that the raised strips are formed with its axis direction is 27.5 degree to 28.5 degree, can effectively increase its with The contact area of concrete, so as to strengthen the bond stress of steel strand wires, improves bearing capacity.

In this steel strand wires, outer reinforcement outer surface integrally makes raised strips, and raised strips bottom and outer reinforcement connection position Put and make radian, can make raised strips that the transition of arc is formed with outer reinforcement, not only reduce the stress concentration of steel strand surface, also The processing technology of steel strand wires is simplified, can be prevented effectively from steel strand wires process and be broken, in addition, using without corner angle Connection, can also improve the Fracture Force and cracking resistance of steel strand wires.

In the utility model, the matching size of specific central hair and outer layer steel strand wires is closed so that steel strand wires are overall most Average, tensile strength average, regulation disproportional extending force average, elongation average and number of bends are obviously improved energetically.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the partial sectional view in A-A portions in Fig. 1；

Fig. 3 is the partial enlarged drawing in B portions in Fig. 1.

Specific embodiment

The utility model is elaborated below by embodiment, the embodiment is illustrative instead of limiting , it is impossible to protection domain of the present utility model is limited with this.

A kind of surface is formed with the prestress wire of raised strips, and its section is made up of two-layer reinforcing bar, innovation of the present utility model It is, including 1 central hair and Duo Gen outer reinforcements, the outside of the central hair is uniformly stranded to be coated with the outer reinforcement, The outer reinforcement is in linear contact lay with the end face outside of central hair, and the outer surface uniform intervals of the outer reinforcement make multiple Raised strips 1, the raised strips form angle with the axis direction of central hair, and the outer reinforcement section is multiple convex for outer rim is uniformly formed with The circle of band；The central hair uses plain bar 4, and the quantity of outer reinforcement 3 on the outside of the plain bar is 6；It is described every The outer rim of outer reinforcement is uniformly formed with 4 raised strips.

In the present embodiment, the angle that the raised strips that the outer reinforcement outer surface is made are formed with plain bar axis direction Spend is 27.5 degree to 28.5 degree；Raised strips are integrally made with outer reinforcement using being connected without corner angle, and the raised strips connect with outer reinforcement The bottom for connecing is formed with uniform radian 5, per forming gap 2 between two adjacent raised strips, the width of the raised strips be less than with it is adjacent Spacing between raised strips is the width in gap.

To ensure the performance of steel strand wires in the present embodiment, the nominal diameter of the outer reinforcement is 7.18mm；The light circle The nominal diameter of reinforcing bar is 7.28mm；Raised strips width in axial direction is 1.8 to 2.0mm；The radial direction of the raised strips is thick Spend for 0.1 to 0.2mm.

Claims

1. a kind of surface is formed with the prestress wire of raised strips, and its section is made up of two-layer reinforcing bar, it is characterised in that：Including 1 Central hair and Duo Gen outer reinforcements, the outside of the central hair is uniformly stranded to be coated with the outer reinforcement, the outer reinforcement End face outside with central hair is in linear contact lay, and the outer surface uniform intervals of the outer reinforcement make multiple raised strips, described convex Band forms angle with the axis direction of central hair, and the outer reinforcement section is the circle that outer rim is uniformly formed with multiple raised strips.

2. a kind of surface according to claim 1 is formed with the prestress wire of raised strips, it is characterised in that：The central hair Using plain bar, the outer reinforcement quantity on the outside of the plain bar is 6.

3. a kind of surface according to claim 2 is formed with the prestress wire of raised strips, it is characterised in that：Described every outer The outer rim of layer reinforcing bar is uniformly formed with 4 raised strips.

4. a kind of surface according to claim 3 is formed with the prestress wire of raised strips, it is characterised in that：The outer layer steel The raised strips that muscle outer surface is made are 27.5 degree to 28.5 degree with the angle that plain bar axis direction is formed.

5. a kind of surface according to claim 4 is formed with the prestress wire of raised strips, it is characterised in that：Raised strips and outer layer Reinforcing bar is integrally made using without corner angle connection, and the bottom that the raised strips are connected with outer reinforcement is formed with uniform radian, described convex The width of band is less than and the spacing between adjacent raised strips.

6. a kind of surface according to claim 3 is formed with the prestress wire of raised strips, it is characterised in that：The outer layer steel The nominal diameter of muscle is 7.18mm.

7. a kind of surface according to claim 3 is formed with the prestress wire of raised strips, it is characterised in that：The smooth round steel The nominal diameter of muscle is 7.28mm.

8. a kind of surface according to claim 3 is formed with the prestress wire of raised strips, it is characterised in that：The raised strips edge The width of axial direction is 1.8 to 2.0mm.

9. a kind of surface according to claim 3 is formed with the prestress wire of raised strips, it is characterised in that：The raised strips Radial thickness is 0.1 to 0.2mm.