CN105839855A - Hot-rolled high-precision full-thread reinforcing steel bar for building - Google Patents
Hot-rolled high-precision full-thread reinforcing steel bar for building Download PDFInfo
- Publication number
- CN105839855A CN105839855A CN201610340655.2A CN201610340655A CN105839855A CN 105839855 A CN105839855 A CN 105839855A CN 201610340655 A CN201610340655 A CN 201610340655A CN 105839855 A CN105839855 A CN 105839855A
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- CN
- China
- Prior art keywords
- cross rib
- steel bar
- reinforcing steel
- thread reinforcing
- complete thread
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention provides a hot-rolled high-precision full-thread reinforcing steel bar for a building. The full-thread reinforcing steel bar comprises a bar body (1) and transverse ribs (2), wherein the transverse ribs (2) are uniformly distributed in the length direction of the bar body (1) and are classified into equal-height spiral transverse ribs at the upper part and the lower part, namely upper transverse ribs (4) and lower transverse ribs (5); the upper and lower transverse ribs form threads positioned on the same spiral lines; freely expanded surfaces (3) are distributed between the upper transverse ribs (4) and the lower transverse ribs (5); the freely expanded surfaces (3) are flat and straight rectangular surfaces.
Description
Technical field
The present invention relates to the technical field of building bar, particularly to a kind of hot rolling for building high accuracy full thread steel
Muscle.
Background technology
The screw-thread steel that China commonly uses is the reinforcing bar that surface is with ribbing, i.e. hot rolled ribbed bars, it is medium-sized or above building
The necessary steel of component, and it is widely used in the public utilities such as building construction, highway, railway.At present, commonly use
Ribbed Bar includes: twice longitudinal rib and go up equally distributed cross rib along its length.The shape of cross rib is divided into spiral type,
Herringbone and crescent 3 kinds.
At present, in order to meet building demand, need to link together many Ribbed Bar, reach building standard.
At present, conventional on-link mode (OLM) includes: colligation overlap joint connects, and is welded to connect and is mechanically connected.Colligation overlap joint connects,
It is by the way of the cohesive force between reinforcing bar and concrete transmits reinforcement stresses.But, the method reinforcing bar needs
Overlap joint certain length, not only causes reinforcing bar to waste, and bonding strength is poor, construction inconvenience, and may be only available for little
Specification reinforcing bar.It is welded to connect, is by the direct power transmission of motlten metal between steel bar stress.But, the method is by electricity
The impact of the factors such as pressure, weather, environment, execution conditions and operation level, easily cause reinforced steel bar strength, rigidity,
The defect of the aspect such as restorability, destructive characteristics, it is difficult to ensure stable welding quality.Additionally welding heat can shadow
Ring reinforcing bar microstructure, change its mechanical property.It is mechanically connected, end reinforced crescent cross rib is divested, rolling
It is pressed into straight thread, then with telescopic joint.There is area and weaken situation, cause the bonding strength of reinforcing bar significantly to drop
Low.It addition, use the necessary advanced processing of the reinforcing bar being mechanically connected, and protect its end in transport and work progress
It is without prejudice, otherwise, joint quality will be had a strong impact on.
Summary of the invention
It is an object of the invention to, for solution, existing Ribbed Bar is existed bonding strength in connected mode poor,
Poor mechanical property, the defect that precision is low, and then a kind of hot rolling for building high accuracy complete thread reinforcing steel bar, this full spiral shell are provided
Stricture of vagina reinforcing bar includes: the body of rod and cross rib；Length direction along the described body of rod is evenly distributed with described cross rib, described
Cross rib is divided into upper and lower contour spiral cross rib, i.e. goes up cross rib and lower cross rib；And the two composition is in same helix
On screw thread；Free wxpansion face is distributed between cross rib and described lower cross rib on described；And this free wxpansion face is
Straight rectangular surfaces；The nut with female hollow or sleeve is used to be attached between described complete thread reinforcing steel bar.
Described cross rib is unidirectional left-handed or the spiral type of dextrorotation.
Root chamfering r1 of described cross rib is 0.6～2.0mm, and break corner r2 is 0.3～1.0mm.
Spacing d between described cross rib is 4～24mm.
The height h of described cross rib is 0.6～3.0mm and bottom width b is 3.0～9.0mm.
Angle α between side and the external peripheral surface of the described body of rod of described cross rib is 30 °～90 °；Described cross rib
And the angle β between the axis of the described body of rod is 75 °～88 °.
Distance d between the free wxpansion face of described symmetry is 9.4～48.8mm.
The diameter dh of the described body of rod is Φ 10～Φ 50.
The section of described cross rib is isosceles trapezoid, and the section of described complete thread reinforcing steel bar is non-circular geometric face.
It is an advantage of the current invention that: the mechanical property overcoming conventional Ribbed Bar is unstable, bonding strength difference
Problem, compares with normal tape rib reinforcement bonding strength, and the bonding strength of described complete thread reinforcing steel bar is higher, handling ease,
Weak link-free stock utilization is high, reduces the cost of use of user；Reduce production cost；Construction side flexibly
Just, the body of rod that as required, can intercept random length is attached.Avoid and occur between reinforcing bar and concrete to turn
Dynamic, make that whole reinforcing bar is combined with surrounding concrete more firmly, improve reinforcing bar strong with the combination of periphery concrete
Degree, improves the quality of armored concrete, thus improves fastness and the globality of structure.
Accompanying drawing explanation
Fig. 1 be the cross rib of the present invention be the front view of unidirectional left-handed hot rolling for building high accuracy complete thread reinforcing steel bar；
Fig. 2 be the cross rib of the present invention be the front view of single cextrorotory hot rolling for building high accuracy complete thread reinforcing steel bar；
Fig. 3 be the cross rib of the present invention be showing of the transverse section of unidirectional left-handed hot rolling for building high accuracy complete thread reinforcing steel bar
It is intended to；
Fig. 4 be the cross rib of the present invention be the cross section of the cross rib of unidirectional left-handed hot rolling for building high accuracy complete thread reinforcing steel bar
Figure；
1, the body of rod 2, cross rib
3, free wxpansion face 4, upper cross rib
5, lower cross rib
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The present invention provides a kind of hot rolling for building high accuracy complete thread reinforcing steel bar, uses bar mill to be rolled into high accuracy complete
Spiral, as illustrated in fig. 1 and 2, this complete thread reinforcing steel bar includes: the body of rod 1 and cross rib 2；Along the described body of rod 1
Length direction on be evenly distributed with described cross rib 2, described cross rib 2 is divided into upper and lower contour spiral cross rib, i.e. goes up
Cross rib 4 and lower cross rib 5；And the two composition is in the screw thread on same helix；As it is shown on figure 3, it is horizontal described
Free wxpansion face 3 is distributed between rib 4 and lower cross rib 5, and this free wxpansion face 3 is straight rectangular surfaces；Described
The nut with female hollow is used to be attached between complete thread reinforcing steel bar.
Embodiment 1.
As it is shown in figure 1, described complete thread reinforcing steel bar is 500Mpa level reinforcing bar, described cross rib 2 is unidirectional left-handed spiral
Shape.Root chamfering r1 of described cross rib 2 is 0.9mm, and break corner r2 is 0.4m.
Spacing d between described cross rib 2 is 10mm.
As shown in Figure 4, the height h of described cross rib 2 is 1.5mm and bottom width b is 5.6mm.
As shown in Figure 4, the angle α between side and the external peripheral surface of the described body of rod 1 of described cross rib 2 is 60 °；
As it is shown in figure 1, the angle β between described cross rib 2 and the axis of the described body of rod 1 is 81.8 °.
As it is shown on figure 3, distance d between the free wxpansion face of described complete thread reinforcing steel bar is 19.0mm.
As it is shown on figure 3, the diameter dh of the described body of rod 1 is Φ 20.
As shown in Figures 3 and 4, the section of described cross rib 2 is isosceles trapezoid, and the section of described complete thread reinforcing steel bar is upper
Lower horizontal non-circular geometric face.
Embodiment 2.
Shown in Fig. 2, described complete thread reinforcing steel bar is 500Mpa level reinforcing bar, and described contour spiral cross rib is single cextrorotory
Spiral type.Root chamfering r1 of described cross rib 2 is 1.5mm, and break corner r2 is 0.5mm.
Spacing d of described cross rib 2 is 6.0mm.
As shown in Figure 4, the height h of described cross rib 2 is 1.0mm and bottom width b is 4.0mm.
As shown in Figure 4, the angle α between side and the external peripheral surface of the described body of rod 1 of described cross rib 2 is 45 °；
As in figure 2 it is shown, the angle β between described cross rib 2 and the axis of the described body of rod 1 is 85.9 °.
As it is shown on figure 3, distance d between the free wxpansion face of described complete thread reinforcing steel bar is 23.4mm.
As it is shown on figure 3, the diameter dh of the described body of rod 1 is Φ 25.
As shown in Figures 3 and 4, the section of described cross rib 2 is isosceles trapezoid, and the section of described complete thread reinforcing steel bar is upper
Lower horizontal non-circular geometric face.
In other specific embodiments, being actually needed according to concrete, described upper cross rib 4 is with described lower cross rib 5 also
Can be non-contour.
It is last it should be noted that the experiment figure described in detailed description of the invention is only used for illustrating the technology of the present invention
The feasibility of scheme software algorithm and be not limited to this example, algorithm passes through lot of experimental data checking, is true
Reliably, collocation hardware just can realize technical scheme.Although the present invention having been carried out in detail with reference to embodiment
Describe in detail bright, it will be understood by those within the art that, technical scheme is modified or is equal to
Replacing, without departure from the spirit and scope of technical solution of the present invention, it all should contain the claim model in the present invention
In the middle of enclosing.
Claims (8)
1. a hot rolling for building high accuracy complete thread reinforcing steel bar, it is characterised in that this complete thread reinforcing steel bar includes: the body of rod
And cross rib (2) (1)；Length direction along the described body of rod (1) is evenly distributed with described cross rib (2), institute
State cross rib (2) and be divided into upper and lower contour spiral cross rib, i.e. go up cross rib (4) and lower cross rib (5)；And the two structure
Become to be in the screw thread on same helix；It is distributed between cross rib (4) and described lower cross rib (5) on described certainly
By expanding noodles (3)；And this free wxpansion face (3) are straight rectangular surfaces.
One the most according to claim 1 hot rolling for building high accuracy complete thread reinforcing steel bar, it is characterised in that institute
Stating cross rib (2) is unidirectional left-handed or the spiral type of dextrorotation, and spacing d between described cross rib (2) is 4～24mm.
One the most according to claim 2 hot rolling for building high accuracy complete thread reinforcing steel bar, it is characterised in that institute
Stating the height h of cross rib (2) is 0.6～3.0mm and bottom width b is 3.0～9.0mm.
One the most according to claim 3 hot rolling for building high accuracy complete thread reinforcing steel bar, it is characterised in that institute
Stating the angle α between the side of cross rib (2) and the external peripheral surface of the described body of rod (1) is 30 °～90 °；Described
Angle β between the axis of cross rib (2) and the described body of rod (1) is 75 °～88 °.
One the most according to claim 4 hot rolling for building high accuracy complete thread reinforcing steel bar, it is characterised in that institute
Root chamfering r1 stating cross rib (2) is 0.6～2.0mm, and break corner r2 is 0.3～1.0mm.
One the most according to claim 1 hot rolling for building high accuracy complete thread reinforcing steel bar, it is characterised in that institute
Distance d stated between the free wxpansion face (3) of symmetry is 9.4～48.8mm.
One the most according to claim 1 hot rolling for building high accuracy complete thread reinforcing steel bar, it is characterised in that institute
The diameter dh stating the body of rod (1) is Φ 10～Φ 50.
One the most according to claim 1 hot rolling for building high accuracy complete thread reinforcing steel bar, it is characterised in that institute
State and between complete thread reinforcing steel bar, use the nut with female hollow or sleeve to be attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610340655.2A CN105839855A (en) | 2016-05-19 | 2016-05-19 | Hot-rolled high-precision full-thread reinforcing steel bar for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610340655.2A CN105839855A (en) | 2016-05-19 | 2016-05-19 | Hot-rolled high-precision full-thread reinforcing steel bar for building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105839855A true CN105839855A (en) | 2016-08-10 |
Family
ID=56593878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610340655.2A Pending CN105839855A (en) | 2016-05-19 | 2016-05-19 | Hot-rolled high-precision full-thread reinforcing steel bar for building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105839855A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803629A (en) * | 2017-10-27 | 2018-03-16 | 阳春新钢铁有限责任公司 | Method for improving mechanical property of deformed steel bar |
| CN108979554A (en) * | 2018-06-01 | 2018-12-11 | 山东九环石油机械有限公司 | A kind of coiled rod ellipse reinforcing bar body of rod and its production method |
| CN109175172A (en) * | 2018-09-06 | 2019-01-11 | 山东焱鑫矿用材料加工有限公司 | A kind of molding milling train rolling double rotational directions thread connection steel part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1185452A (en) * | 1981-07-28 | 1985-04-16 | Georg Kern | Reinforcing member for a grouted anchor |
| JPH11247184A (en) * | 1998-03-04 | 1999-09-14 | Tokyo Tekko Co Ltd | Execution of pile head anchor bar of steel pipe pile |
| KR20110026297A (en) * | 2009-09-07 | 2011-03-15 | 금오공과대학교 산학협력단 | Connecting apparatus for steel reinforcement |
| CN202768034U (en) * | 2012-09-13 | 2013-03-06 | 莱芜钢铁集团有限公司 | High-strength whole thread equal-strength resin anchor bar steel bar |
-
2016
- 2016-05-19 CN CN201610340655.2A patent/CN105839855A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1185452A (en) * | 1981-07-28 | 1985-04-16 | Georg Kern | Reinforcing member for a grouted anchor |
| JPH11247184A (en) * | 1998-03-04 | 1999-09-14 | Tokyo Tekko Co Ltd | Execution of pile head anchor bar of steel pipe pile |
| KR20110026297A (en) * | 2009-09-07 | 2011-03-15 | 금오공과대학교 산학협력단 | Connecting apparatus for steel reinforcement |
| CN202768034U (en) * | 2012-09-13 | 2013-03-06 | 莱芜钢铁集团有限公司 | High-strength whole thread equal-strength resin anchor bar steel bar |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803629A (en) * | 2017-10-27 | 2018-03-16 | 阳春新钢铁有限责任公司 | Method for improving mechanical property of deformed steel bar |
| CN107803629B (en) * | 2017-10-27 | 2021-04-13 | 阳春新钢铁有限责任公司 | Method for improving mechanical property of deformed steel bar |
| CN108979554A (en) * | 2018-06-01 | 2018-12-11 | 山东九环石油机械有限公司 | A kind of coiled rod ellipse reinforcing bar body of rod and its production method |
| CN109175172A (en) * | 2018-09-06 | 2019-01-11 | 山东焱鑫矿用材料加工有限公司 | A kind of molding milling train rolling double rotational directions thread connection steel part |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160810 |