CN208950166U - A kind of cold rolled reinforcing steel bar with ribs - Google Patents
A kind of cold rolled reinforcing steel bar with ribs Download PDFInfo
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- CN208950166U CN208950166U CN201821713664.2U CN201821713664U CN208950166U CN 208950166 U CN208950166 U CN 208950166U CN 201821713664 U CN201821713664 U CN 201821713664U CN 208950166 U CN208950166 U CN 208950166U
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- rib
- main body
- reinforcing bar
- bar main
- ribs
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Abstract
The utility model discloses a kind of cold rolled reinforcing steel bar with ribs, the cold rolled reinforcing steel bar with ribs includes reinforcing bar main body, first rib and the second rib, the length of first rib is equal to the half of the diameter of reinforcing bar main body and extends along the circumferential direction of reinforcing bar in semi-annular shape, the length of second rib and the equal length of first rib, first rib and the second rib are surrounded by the annulus with v-notch on the excircle of reinforcing bar main body, and v-notch is arranged between first rib and the second rib；The axis direction of reinforcing bar main body is provided with multiple annulus with v-notch on the excircle of the reinforcing bar main body；It is more than or equal to 0.4 along ratio of the distance between the adjacent first rib of the axis of reinforcing bar main body between the diameter of reinforcing bar main body and is less than or equal to 0.58, the angle between first rib or the second rib and the axis of reinforcing bar main body is greater than 65 degree less than 75 degree.
Description
Technical field
The utility model relates to cold rolled reinforcing bar technical fields, and in particular to a kind of cold rolled reinforcing steel bar with ribs.
Background technique
Cold rolled reinforcing steel bar with ribs is to press rib together through multiple tracks cold rolling tube reducing with gren rod and formed after eliminating internal stress
A kind of reinforcing bar.Cold rolled reinforcing steel bar with ribs is the renewal product of cold-drawn low-carbon wire in prestressed concrete member, cast-in-place
In concrete structure, then I grade of reinforcing bar of replaceable is preferable a kind of in similar cold working steel with saving steel.
Cold rolled reinforcing steel bar with ribs is succeeded in developing in nineteen sixty-eight in Germany, Holland, Belgium, in Europe (Germany, Austria from 1973
Land productivity, Italy, the U.S., Britain etc.) a large amount of development and applications have just been obtained, and have national standard, International Organization for standardization (ISO)
Also international standard has been formulated, as a kind of structural steel, has incorporated the code for design of concrete structures of various countries, in these countries, cold rolling
Ribbed Bar be widely used in architectural engineering, highway, airport, municipal administration, in hydroelectric line.1994, European Community's annual output
4500000 tons.In regions around China, Singapore and Malaysia are also widely applied in architectural engineering and municipal works already,
Only Singapore's cold rolled reinforcing steel bar with ribs year usage amount just at 150,000 tons or more.
The cold rolled reinforcing steel bar with ribs in the prior art bond and anchor property that there are flank intensity not enough between concrete is not
Enough good problems, this field never have solution good enough.
Summary of the invention
The purpose of this utility model is to provide a kind of cold rolled reinforcing steel bar with ribs, and the technical problem to be solved is that how to improve
The structure of cold rolled reinforcing steel bar with ribs, to improve the bond and anchor property between flank intensity and cold rolled reinforcing steel bar with ribs and concrete.
Cold rolled reinforcing steel bar with ribs described in the utility model includes reinforcing bar main body, first rib and the second rib, the length of first rib
Half equal to the diameter of reinforcing bar main body and the circumferential direction along reinforcing bar extend in semi-annular shape, the length of the second rib and first rib
Equal length, first rib and the second rib are surrounded by the annulus with v-notch on the excircle of reinforcing bar main body, and v-notch is set
It sets between first rib and the second rib；It is provided on the excircle of the reinforcing bar main body along the axis direction of reinforcing bar main body more
A annulus with v-notch；Diameter along the distance between adjacent first rib of the axis of reinforcing bar main body with reinforcing bar main body
Between ratio be more than or equal to 0.4 be less than or equal to 0.58, the angle between first rib or the second rib and the axis of reinforcing bar main body is big
In 65 degree less than 75 degree.
Preferably, the angle between the first rib or the side and reinforcing bar body surfaces of the second rib is greater than 45 degree and is less than
55 degree.
Ratio between the height of first rib or the second rib and the diameter of reinforcing bar main body is greater than 0.04 and is less than or equal to
0.06。
It is small that ratio between the root width and first rib of first rib or the second rib or the height of the second rib is greater than 2
In equal to 3.
The radius of curvature of the binding site of the first rib or the second rib and reinforcing bar main body is greater than 1.5 and is less than or equal to 2.8.
The technical solution of the utility model has the advantages that
Cold rolled reinforcing steel bar with ribs described in the utility model is structurally reasonable, increases the length of rib, and the length of rib is made to be equal to steel
The half of the diameter of muscle main body and along the circumferential direction of reinforcing bar main body in semi-annular shape extend (rib in the prior art is usually crescent moon
Shape, length are less than 1/10th of the diameter of reinforcing bar main body), substantially increase flank intensity.Pass through many experiments application human hair
Existing, the bond and anchor property between cold rolled reinforcing steel bar with ribs and concrete is related with the multiple parameters of cold rolled reinforcing steel bar with ribs, these ginsengs
Number include angle αs between the height h of rib, the root width b of rib, rib and the axis of reinforcing bar main body, reinforcing bar main body diameter d,
The radius of curvature R of rib and the binding site of reinforcing bar main body, rib side and reinforcing bar body surfaces between angle β and along steel
The distance between the adjacent rib of the axis of muscle main body C, by the range that the above parameter is limited to the requires of the utility model protection
It is interior, it can be improved the bond and anchor property between cold rolled reinforcing steel bar with ribs and concrete.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of cold rolled reinforcing steel bar with ribs described in the utility model.
Fig. 2 is the cross-sectional view in II-II direction in Fig. 1.
Fig. 3 is the cross-sectional view in III-III direction in Fig. 1.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
As shown in Figure 1 to Figure 3, cold rolled reinforcing steel bar with ribs described in the utility model includes reinforcing bar main body 1, first rib 3 and
Two ribs 4, the length of first rib are equal to the half of the diameter of reinforcing bar main body and extend along the circumferential direction of reinforcing bar in semi-annular shape, second
The length of rib and the equal length of first rib, first rib and the second rib are surrounded by the excircle of reinforcing bar main body to be lacked with V-type
The annulus of mouth, v-notch are arranged between first rib and the second rib；Along reinforcing bar main body on the excircle of the reinforcing bar main body
Axis direction be provided with multiple annulus with v-notch；Along between the adjacent first rib of the axis 5 of reinforcing bar main body away from
It is more than or equal to 0.4 from the ratio between C and the diameter d of reinforcing bar main body and is less than or equal to 0.58, first rib or the second rib and reinforcing bar master
Angle α between the axis of body is greater than 65 degree less than 75 degree.
Preferably, the angle β between the first rib or the side and reinforcing bar body surfaces of the second rib is greater than 45 degree small
In 55 degree.
Ratio between the height h of first rib or the second rib and the diameter d of reinforcing bar main body is greater than 0.04 and is less than etc.
In 0.06.
Ratio between the root width b and first rib or the height h of the second rib of the first rib or the second rib is greater than 2
Less than or equal to 3.
The radius of curvature R of the first rib or the second rib and the binding site of reinforcing bar main body is greater than 1.5 and is less than or equal to
2.8。
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (5)
1. a kind of cold rolled reinforcing steel bar with ribs, which is characterized in that the cold rolled reinforcing steel bar with ribs includes reinforcing bar main body, first rib and second
Rib, the length of first rib are equal to the half of the diameter of reinforcing bar main body and extend along the circumferential direction of reinforcing bar in semi-annular shape, the second rib
Length and first rib equal length, first rib and the second rib are surrounded by the excircle of reinforcing bar main body with v-notch
Annulus, v-notch be arranged between first rib and the second rib；Along reinforcing bar main body on the excircle of the reinforcing bar main body
Axis direction is provided with multiple annulus with v-notch；Along adjacent the distance between the first rib of the axis of reinforcing bar main body
Ratio between the diameter of reinforcing bar main body is more than or equal to 0.4 and is less than or equal to 0.58, first rib or the second rib and reinforcing bar main body
Angle between axis is greater than 65 degree less than 75 degree.
2. cold rolled reinforcing steel bar with ribs as described in claim 1, which is characterized in that side and the steel of the first rib or the second rib
Angle between muscle body surfaces is greater than 45 degree less than 55 degree.
3. cold rolled reinforcing steel bar with ribs as described in claim 1, which is characterized in that the height and steel of the first rib or the second rib
Ratio between the diameter of muscle main body is greater than 0.04 and is less than or equal to 0.06.
4. cold rolled reinforcing steel bar with ribs as described in claim 1, which is characterized in that the root width of the first rib or the second rib
It is greater than 2 with the ratio between the height of first rib or the second rib and is less than or equal to 3.
5. cold rolled reinforcing steel bar with ribs as described in claim 1, which is characterized in that the first rib or the second rib and reinforcing bar main body
Binding site radius of curvature be greater than 1.5 be less than or equal to 2.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821713664.2U CN208950166U (en) | 2018-10-23 | 2018-10-23 | A kind of cold rolled reinforcing steel bar with ribs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821713664.2U CN208950166U (en) | 2018-10-23 | 2018-10-23 | A kind of cold rolled reinforcing steel bar with ribs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208950166U true CN208950166U (en) | 2019-06-07 |
Family
ID=66742346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821713664.2U Active CN208950166U (en) | 2018-10-23 | 2018-10-23 | A kind of cold rolled reinforcing steel bar with ribs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208950166U (en) |
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2018
- 2018-10-23 CN CN201821713664.2U patent/CN208950166U/en active Active
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