CN1198036C - Method for mounting anchor tendon penetrated mechanically - Google Patents
Method for mounting anchor tendon penetrated mechanically Download PDFInfo
- Publication number
- CN1198036C CN1198036C CN 02120816 CN02120816A CN1198036C CN 1198036 C CN1198036 C CN 1198036C CN 02120816 CN02120816 CN 02120816 CN 02120816 A CN02120816 A CN 02120816A CN 1198036 C CN1198036 C CN 1198036C
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- bar
- hole
- mounting
- lacing wire
- anchor lacing
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- Expired - Fee Related
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- Joining Of Building Structures In Genera (AREA)
Abstract
The present invention discloses an anchor lacing bar mounting method in a mechanical penetration mode, which has the technical scheme that a hole is drilled and is processed; floating slag and powder dust in the holes are removed by a hair brush; the bars are mounted, an anchor lacing bar rod with an expanded large head part is inserted into the inmost position of the hole after the hole processing is finished; a gradually tightening screw nut is simultaneously applied to the outer part, a reinforcing bar is continuously inserted into the hole after the screw nut is turned from 1.5 to 2cm of flight lead, the screw nut is repeatedly tightened until the preset torque force value is reached. Compared with the existing method for mounting bars, the present invention has the advantages that clean requirements of bar mounting holes after drilling are greatly reduced, special people are not needed to watch from bar mounting to solidification of cementing materials, and cementing material solidifying time is not needed; bar mounting position can be accurately positioned without penetrating through a mould plate; the quality of bar mounting can be effectively ensured; the method for mounting bars has the advantage of low price, and the price of mounting each mechanical penetration anchor lacing bar is only 0.90 yuan.
Description
Technical field
The invention belongs to the bar planting method in the building operations.
Background technology
Bar planting method commonly used in the existing building engineering construction has
1, boring bonding bar planting method:
Boring bonding bar planting method is earlier in the boring of the position of need bar planting, then scum silica frost in the hole and dust are handled, generally clean with acetone, must handle to the hole till the no dust, then fill up cementitious materials (being generally construction structure glue) in hole, the rebar surface after cleaning is coated with identical cementitious materials again, and then reinforcing bar is inserted in the hole, need have staff on duty after the bar planting till cementitious materials curing, normal temperature needs 12-48h down usually.The method must strictly be controlled the bar planting degree of depth, simultaneously the protection after hole cleaning, hole drying property, cementitious materials standing time and the bar planting is all had requirement.Under the prerequisite that guarantees rebar-planting quality, its bar planting price is about 1.40 yuan/root.
2, welding behind the first embedded bar
This method is before concreting, the requirement that the position is set according to the anchor lacing wire earlier on template boring pre-buried with anchor lacing wire diameter or greater than the bar dowel head of anchor lacing wire diameter one-level, finish at casting and compacting of concrete, after the form removable, again on steel bar end welded reinforcement to the length that needs.Compare with implanting mechanical penetrated anchor lacing wire, it has three drawbacks, and first:, be difficult to pre-buried muscle is controlled at desired location in the future because the position of anchor lacing wire is earlier pre-buried; Second: need pass template during the embedded bar head, cause infringement, reduce the turnover rate of template to template.Template is after repeatedly using simultaneously, and pre-buried via hole will increase, and very easily causes concrete pitted skin phenomenon to take place.The 3rd: construct loaded down with trivial details, composite price is high, considers its destruction to template system, the loaded down with trivial details recruitment of constructing, its bar planting comprehensive unit price surpasses 1.30 yuan/root.
3, expansion bolt welded reinforcement method
This bar planting method is behind concrete formation, after elder generation accurately determines to be provided with anchor lacing wire position, squeezes into expansion bolt, screws tight nut, and it firmly is connected with concrete, and anchor lacing wire specification and the expansion bolt with designing requirement welds then.Though this method that the anchor lacing wire is set after casting and compacting of concrete finishes can accurately be provided with the position of anchor lacing wire, but it has a fatal shortcoming: expansion bolt is standard component on the market now, after squeezing into concrete, the outer mobile jib extension elongation of its nut is very little, weld seam also will be deducted the length of the starting the arc and the arc that falls during welding, be difficult to guarantee the requirement of weld length 10d, and be subjected to have on the expansion bolt rod member silk mouth, bolt material and reinforcing bar material that factor affecting such as difference are arranged, be difficult for the quality of the welding of assurance bolt and reinforcing bar.Be not extensive use of now.On price, the price of its single expansion spiral shell just about 1.00 yuan/root, adds the price of single steel bar, and its price is compared nocompetitive with the bar planting method of mechanical penetrated anchor lacing wire.
4, other method
Other method has the main muscle method of welding, is meant before masonry is built by laying bricks or stones, accurately determines the position of required anchor lacing wire, yet gets out main muscle, with design specification anchor lacing wire and its welding.This method has destruction to concrete structure, and needs to find out main reinforce position with particular instrument, is eliminated gradually in construction reality.Traditional some other bar planting method in addition, owing to can not satisfy construction requirement, the few employing to the utmost just repeats no more here.
Summary of the invention
The object of the present invention is to provide and a kind ofly adopt mechanical penetrated anchor lacing wire to carry out the method for bar planting, to overcome the defective that exists in the above-mentioned bar planting method.
The technical scheme of method for mounting anchor tendon penetrated mechanically is: (1) boring, (2) hole is handled, with hairbrush scum silica frost in the hole and dust are removed totally, (3) bar planting is after hole disposes, anchor lacing wire rod member enlarged footing is partly filled in the hole bosom, externally with tightening nut gradually, after nut whenever tightens flight lead 1.5-2cm, reinforcing bar should be continued to fill in hole simultaneously, tighten nut again, till the extremely predetermined repeatedly torque value.
The existing various bar planting methods of this method have following advantage: 1, boring bonding bar planting method, greatly reduce of the cleaning requirement of boring back to the bar planting hole, and need not to use cementitious materials, do not need staff on duty after the bar planting, no cementitious materials hardening time.2, welding behind the more first embedded bar can accurately position the bar planting position, need not template is bored a hole.3, can effectively ensure the quality of bar planting than expansion bolt welded reinforcement method.This bar planting method cheap, only 0.90 yuan of the bar planting expense of every mechanical penetrated anchor lacing wire.The time of planting a muscle only needs 5 minutes.This shows that the existing various bar planting methods of this method have significantly and outstanding progress.
Description of drawings
Accompanying drawing machinery penetrated anchor lacing wire structural representation
The specific embodiment
As shown in drawings, an end of reinforcing bar 3 is an enlarged footing 1, and 3 establish screw thread 2 on the reinforcing bar, and nut 5 is connected with reinforcing bar 3 by screw thread 2, and the reinforcing bar 3 between nut 5 and the enlarged footing 1 is provided with sleeve 4, and sleeve 4 is offered groove 6 near an end of reinforcing bar enlarged footing.There are φ 6, φ 8,10 3 kinds of diameter products of φ machinery penetrated anchor lacing wire present stage, and its length has plurality of specifications such as 40cm, 70cm, 100cm, 120cm, 140cm, and can adjust its diameter, length according to market demand.Chamber and on-the-spot mechanical property detection by experiment to mechanical penetrated anchor lacing wire and assembly thereof, its stress value that bears all reaches the design load requirement, and it is listed that every mechanical performance all is not less than following table:
| Bar diameter | Yield strength | Tensile strength | Elongation rate is not less than | Clod wash | |
| Angle of bend | Bending diameter | ||||
| φ6、φ8、φ10 | 280N/mm 2 | 370N/mm 2 | 11％ | 180° | 3d0 |
And the design strength required value is (is example with φ 6 reinforcing bars):
FyAs=210
N/ mm
2* π * 3
2=5937
N=5.937
KN, the actual strength minimum value is 6.7
KN(is foundation, page table as follows with No. 01055 survey report in building engineering quality supervision verification test center, Hubei Province) actual strength value is considerably beyond design load.Carry out bar planting with this anchor lacing wire:
1., boring
When the lacing wire of masonry anchor is provided with, can accurately determine to be provided with the position of anchor lacing wire earlier.Boring aperture is got bar diameter d+2mm generally speaking, and drilling depth is 12d (d is a bar diameter).
2., hole is handled
The lacing wire of machinery penetrated anchor is used test-tube brush scum silica frost in the hole and dust is removed totally substantially before bar planting.
3., bar planting
After hole disposes, the mechanical penetrated anchor lacing wire that can will make is filled in the hole, attention should make the rod member enlarged footing partly fill in the hole bosom, simultaneously externally tighten nut gradually with torque spanner, after noticing that nut whenever tightens flight lead 1.5-2cm, the oriented slightly outer displacement of mechanical penetrated anchor lacing wire meeting should continue reinforcing bar to fill in hole, tighten nut again, till the extremely predetermined several times repeatedly torque value.
4., quality inspection
Machinery penetrated anchor lacing wire bar planting is finished the back and is tackled bar planting and check comprehensively, can be with under the condition on-the-spot pull-out bond test being carried out in mechanical penetrated anchor lacing wire, with performance and the bar planting construction quality of checking mechanical penetrated anchor lacing wire before bar planting.When estimating the reliability of various bar planting methods, should surrender, break with bar planting and transferred to bearing under the situation of design ultimate load reinforcing bar with this reinforcing bar as benchmark.
Following table is the uplift resistance assay of the mechanical penetrated anchor lacing wire of 6 millimeters of diameters:
| Test item | Measurement unit | The design load that the consigner provides | Measured result |
| Φ 6 reinforcing bars | kN | 6.6 | 7.3 dowel is extracted |
| Φ 6 reinforcing bars | KN | 6.6 | 9.7 reinforcing bar is disconnected |
| Φ 6 reinforcing bars | KN | 6.6 | 9.7 dowel is extracted |
| Φ 6 reinforcing bars | kN | 6.6 | 6.7 dowel is extracted |
| Φ 6 reinforcing bars | kN | 6.6 | 11.9 dowel is extracted |
As seen from the above table, mechanical penetrated anchor lacing wire bar planting method rebar-planting quality reliably adheres to specification.
Claims (2)
1, a kind of method for mounting anchor tendon penetrated mechanically, its characterization method is: (1) boring, and (2) hole is handled, and removes scum silica frost in the hole and dust clean with hairbrush, (3) bar planting, after hole disposes, anchor lacing wire rod member enlarged footing is partly filled in the hole bosom, simultaneously externally with tightening nut gradually, after nut whenever tightens flight lead 1.5-2cm, reinforcing bar should be continued to fill in hole, tighten nut again, till the extremely predetermined repeatedly torque value.
2, method for mounting anchor tendon penetrated mechanically according to claim 1 is characterized in that boring aperture gets bar diameter d+2mm, and drilling depth is 12d, and d is a bar diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02120816 CN1198036C (en) | 2002-06-03 | 2002-06-03 | Method for mounting anchor tendon penetrated mechanically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02120816 CN1198036C (en) | 2002-06-03 | 2002-06-03 | Method for mounting anchor tendon penetrated mechanically |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1382891A CN1382891A (en) | 2002-12-04 |
| CN1198036C true CN1198036C (en) | 2005-04-20 |
Family
ID=4744814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02120816 Expired - Fee Related CN1198036C (en) | 2002-06-03 | 2002-06-03 | Method for mounting anchor tendon penetrated mechanically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1198036C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100362201C (en) * | 2006-03-28 | 2008-01-16 | 武汉大学 | Anchor bolt capable of evenly transmitting force along hole depth |
| CN102962872A (en) * | 2012-11-22 | 2013-03-13 | 苏州皇家整体住宅系统股份有限公司 | Laminated wood embedded steel bar construction technology |
| CN104727551B (en) * | 2015-03-26 | 2017-01-11 | 广东电白建设集团有限公司 | Ring beam screw thread core pulling embedded steel bar construction method |
| CN106917472A (en) * | 2015-12-25 | 2017-07-04 | 世铠精密股份有限公司 | Screw-type Rebar bonding device and its forming method |
| CN106917510A (en) * | 2015-12-25 | 2017-07-04 | 世铠精密股份有限公司 | Screw-type Rebar bonding device and its forming method |
| CN107313594A (en) * | 2016-04-26 | 2017-11-03 | 湖北建科结构加固有限责任公司 | After pour the pre-buried threaded sleeve connection method of member reinforcing steel bar |
| CN106223491A (en) * | 2016-09-14 | 2016-12-14 | 中冶天工集团有限公司 | One exempts from mantle fiber wall lacing wire pre-buried combination anchor device and construction method |
| CN108221692A (en) * | 2018-01-15 | 2018-06-29 | 广东省建筑工程机械施工有限公司 | A kind of Landscape Bridge arch ring stone material bar planting method |
-
2002
- 2002-06-03 CN CN 02120816 patent/CN1198036C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1382891A (en) | 2002-12-04 |
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Effective date of registration: 20090306 Address after: Wuhan building, Fortuna Plaza, East Square, HanKou Railway Station, Wuhan, Hubei Patentee after: Wuhan Construction Engineering Co., Ltd. Address before: Hubei province Wuhan city Wuchang District New Democratic Road No. 596 Wu architecture company Patentee before: Liu Xuanchuan |
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Owner name: WUHAN JIANGONG CO., LTD. Free format text: FORMER OWNER: LIU XUANZHUAN Effective date: 20090306 |
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Granted publication date: 20050420 Termination date: 20210603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |