CN101748899A - Method for pore forming by embedding assistant bonded rebar in reinforced concrete structure - Google Patents
Method for pore forming by embedding assistant bonded rebar in reinforced concrete structure Download PDFInfo
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- CN101748899A CN101748899A CN201010039751A CN201010039751A CN101748899A CN 101748899 A CN101748899 A CN 101748899A CN 201010039751 A CN201010039751 A CN 201010039751A CN 201010039751 A CN201010039751 A CN 201010039751A CN 101748899 A CN101748899 A CN 101748899A
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Abstract
The invention discloses a method for pore forming by embedding assistant bonded rebar in a reinforced concrete structure, comprising the following steps: (1) when pouring original concrete, embedding an embedded part of which the hardness is smaller than that of the original concrete on a preset bonded rebar position: the embedded part avoids the original reinforcing steel bar in the original concrete to form space with the original reinforcing steel bar, the axial dimension and the radial dimension of the embedded part are both smaller than those of a drill pore of the bonded rebar, and the embedded part extends to the surface of the original concrete towards one end that needs to be drilled; (2) drilling and forming pores by a drill from the end of the embedded part along the direction of the embedded part: in the pore forming process, correctness of the drilling direction is judged by examing crushed aggregates of the embedded part mixed in the drilled concrete, and the embedded part in the substrate is judged to be fully cleaned when the drilled concrete does not have the crushed aggregates of the embedded part; and (3) finally continuing drilling to the preset depth to finish pore forming. The method effectively avoids damage to the original reinforcing steel bar in pore forming of the bonded rebar and ensures structure safety.
Description
Technical field
The present invention relates to a kind of in reinforced concrete structure the method for bar planting pore-forming.
Background technology
Under the situation for position that before building the matrix concrete, need in the future to determine bar planting, direction, the degree of depth, quantity, as in core tube super highrise building, the construction in advance of general steel concrete core tube, horizontal members such as beam slab follow-up construction, beam reinforced steel bar is connected with core tube concrete by the bar planting method, at this moment, beam reinforced steel bar diameter, position, quantity are determined before the concrete construction of core tube.The test drilling method is still adopted in this kind bar planting at present, promptly just need withdraw from drill bit in case in drilling process, get into the matrix reinforcing bar, changing a position more nearby creeps into again, till can not running into the matrix reinforcing bar, whole drilling process (can not run into the matrix reinforcing bar in the bar planting process, in a single day run into to hurt the matrix reinforcing bar, get into reinforcing bar in the boring, this hole is just useless, must look for the position redrilling nearby in addition, till getting into desired depth and reinforcing bar can not run into).Because the matrix reinforcing bar has concrete cover outward, can't distinguish down during boring whether bore the position has reinforcing bar in advance.It is very big that this method is crept into difficulty, can increase the damage to matrix, if rigid creeping into will injure main muscle, especially at the reinforcing bar close quarters, causes potential safety hazard to structure.
Summary of the invention
The object of the present invention is to provide the method for pore forming by embedding assistant bonded rebar in the reinforced concrete structure, can effectively solving in the existing test drilling method drill bit, to creep into difficulty big, and drill bit is run into the matrix reinforcing bar easily and the matrix reinforcing bar is caused damage, causes the problem of potential safety hazard.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: the method for pore forming by embedding assistant bonded rebar in the reinforced concrete structure, it is characterized in that adopting following steps: (I) earlier when building the matrix concrete, imbed hardness in predetermined bar planting position less than the substrate concrete built-in fitting: built-in fitting avoid the matrix concrete in the matrix reinforcing bar and with matrix reinforcing bar formation spacing, axial and the radial dimension of built-in fitting is all less than bar planting boring, and built-in fitting extends to the substrate concrete surface towards an end of needs boring;
(II) hole again, the end of drill bit from built-in fitting begun to carry out pore-forming along the built-in fitting direction: the particle that is mingled with built-in fitting when pore forming process the concrete that gets out by inspection is judged the correctness of drilling direction, just can judge that when no longer being mingled with the built-in fitting particle in the concrete that gets out the built-in fitting in the matrix cleans out fully;
(III) continue again at last to creep into to desired depth and finish pore-forming.
Preferably, built-in fitting is fixedly connected on the matrix reinforcing bar by auxiliary reinforcement, can accurately and reliably built-in fitting be placed on the position that needs bar planting.
Preferably, the built-in fitting external diameter is than the little 2～4mm of bar planting bore diameter, built-in fitting can be cleaned out fully and do not residue on the hole wall of pore-forming, guarantees that pore-forming hole wall periphery is the matrix concrete.
Preferably, the built-in fitting axial length is than the little 5～10mm of bar planting drilling depth, built-in fitting can be cleaned out fully and do not residue at the bottom of the hole of pore-forming, guarantees that at the bottom of the pore-forming hole be the matrix concrete, not residual built-in fitting.
Preferably, built-in fitting and matrix bar space are not less than 5mm, have reduced the boring difficulty, can effectively avoid injuring the matrix reinforcing bar if depart from the built-in fitting direction accidentally when boring, cause potential safety hazard.
Preferably, built-in fitting adopts materials such as engineering plastics, aluminium alloys or plastic-steel to make, and it is pipe (rod) shape with certain rigidity, can guarantee that built-in fitting is indeformable in concrete when matrix concreting, still can keep linear pattern, guarantee the pore-forming accuracy.
The present invention is owing to adopted technique scheme, can effectively avoid when the bar planting pore-forming damage that may cause the matrix reinforcing bar, guarantee the safety of structure, drill bit only needs to get final product towards the boring of built-in fitting direction, improve bore position, the isoparametric accuracy of the degree of depth greatly, easy and simple to handle, effectively improve efficiency of construction.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 imbeds structural representation behind the matrix concrete for built-in fitting;
Fig. 2 be among Fig. 1 A to view;
Fig. 3 be among Fig. 1 B to view;
Fig. 4 be among Fig. 1 C to view.
The specific embodiment
The method of pore forming by embedding assistant bonded rebar in the reinforced concrete structure of the present invention, when need in the future to determine in reinforced concrete structure the bar planting of certain position, when promptly the position of bar planting in the future, direction, the degree of depth, quantity have been determined, adopt following pore-forming step: (I) earlier when building matrix concrete 4, imbed the built-in fitting 2 of hardness in predetermined bar planting 1 position of holing less than matrix concrete 4, built-in fitting 2 can adopt engineering plastics, aluminium alloys or plastic-steel etc. to have certain rigidity material, guarantees still to keep linear pattern during in matrix concreting at built-in fitting 2.Built-in fitting 2 is fixedly connected on the matrix reinforcing bar 3 by auxiliary reinforcement, and built-in fitting 2 is avoided the matrix reinforcing bar 3 in the matrix concrete 4 and formed spacing with matrix reinforcing bar 3, and built-in fitting 2 is not less than 5mm with the spacing of matrix reinforcing bar 3; Axial and the radial dimension of built-in fitting 2 is all less than bar planting boring 1, built-in fitting 2 external diameters are than the bar planting little 2～4mm of 1 diameter that holes, built-in fitting 2 axial lengths are than the bar planting little 5～10mm of 1 degree of depth that holes, the end that built-in fitting 2 is holed towards needs extends to the surface of matrix concrete 4, can conveniently find the position after matrix concrete 4 waters.(II) hole again, cleaning matrix concrete 4 surfaces, find built-in fitting 2 terminations, the end of drill bit from built-in fitting 2 begun to carry out pore-forming along built-in fitting 2 directions: because of built-in fitting 2 softer than matrix concrete 4, can play orientation to drill bit, the particle that is mingled with built-in fitting 2 when pore forming process in the concrete that gets out by inspection is judged the correctness of drilling direction, after creeping into certain depth, just can judge that when no longer being mingled with built-in fitting 2 particles in the concrete that gets out the built-in fitting 2 in the matrix has cleaned out fully along correct direction.(III) continue again at last to creep into to desired depth and finish pore-forming.
Claims (6)
1. the method for pore forming by embedding assistant bonded rebar in the reinforced concrete structure is characterized in that adopting following steps:
(I) earlier when building the matrix concrete, imbed hardness in predetermined bar planting position less than the substrate concrete built-in fitting: described built-in fitting avoid the matrix concrete in the matrix reinforcing bar and with matrix reinforcing bar formation spacing, axial and the radial dimension of described built-in fitting is all less than bar planting boring, and described built-in fitting extends to the substrate concrete surface towards an end of needs boring;
(II) hole again, the end of drill bit from built-in fitting begun to carry out pore-forming along the built-in fitting direction: the particle that is mingled with built-in fitting when pore forming process the concrete that gets out by inspection is judged the correctness of drilling direction, just can judge that when no longer being mingled with the built-in fitting particle in the concrete that gets out the built-in fitting in the matrix cleans out fully;
(III) continue again at last to creep into to desired depth and finish pore-forming.
2. the method for pore forming by embedding assistant bonded rebar in the reinforced concrete structure according to claim 1, it is characterized in that: described built-in fitting is fixedly connected on the matrix reinforcing bar by auxiliary reinforcement.
3. the method for pore forming by embedding assistant bonded rebar in the reinforced concrete structure according to claim 1 is characterized in that: described built-in fitting external diameter is than the little 2～4mm of bar planting bore diameter.
4. the method for pore forming by embedding assistant bonded rebar in the reinforced concrete structure according to claim 1 is characterized in that: described built-in fitting axial length is than the little 5～10mm of bar planting drilling depth.
5. the method for pore forming by embedding assistant bonded rebar in the reinforced concrete structure according to claim 1 is characterized in that: described built-in fitting and matrix bar space are not less than 5mm.
6. the method for pore forming by embedding assistant bonded rebar in the reinforced concrete structure according to claim 1 is characterized in that: described built-in fitting adopts materials such as engineering plastics, aluminium alloys or plastic-steel to make.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010100397516A CN101748899B (en) | 2010-01-14 | 2010-01-14 | Method for pore forming by embedding assistant bonded rebar in reinforced concrete structure |
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| CN2010100397516A CN101748899B (en) | 2010-01-14 | 2010-01-14 | Method for pore forming by embedding assistant bonded rebar in reinforced concrete structure |
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| CN101748899A true CN101748899A (en) | 2010-06-23 |
| CN101748899B CN101748899B (en) | 2011-03-30 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306487A (en) * | 2013-06-27 | 2013-09-18 | 中建五局第三建设有限公司 | Multi-row beam steel bar PVC pipe reserved bar planting process |
| CN104727551A (en) * | 2015-03-26 | 2015-06-24 | 广东电白建设集团有限公司 | Ring beam screw thread core pulling embedded steel bar construction method |
| CN105312593A (en) * | 2014-07-30 | 2016-02-10 | 桂林福达重工锻造有限公司 | Ejection rod hole drilling method after surfacing of crankshaft forging die |
| CN109184221A (en) * | 2018-08-27 | 2019-01-11 | 中国水利水电第十四工程局有限公司 | Anchor rib construction method is planted after a kind of concrete |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126850C (en) * | 1998-06-05 | 2003-11-05 | 李国安 | Method and apparatus for adding ribs to building |
| CN1243160C (en) * | 2003-09-27 | 2006-02-22 | 叶照桂 | Miniature drilling perfusion pile construction method |
| CN100596318C (en) * | 2007-10-23 | 2010-03-31 | 武汉武大巨成加固实业有限公司 | Mass concrete structure deep pore reinforced construction method |
-
2010
- 2010-01-14 CN CN2010100397516A patent/CN101748899B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306487A (en) * | 2013-06-27 | 2013-09-18 | 中建五局第三建设有限公司 | Multi-row beam steel bar PVC pipe reserved bar planting process |
| CN105312593A (en) * | 2014-07-30 | 2016-02-10 | 桂林福达重工锻造有限公司 | Ejection rod hole drilling method after surfacing of crankshaft forging die |
| CN104727551A (en) * | 2015-03-26 | 2015-06-24 | 广东电白建设集团有限公司 | Ring beam screw thread core pulling embedded steel bar construction method |
| CN109184221A (en) * | 2018-08-27 | 2019-01-11 | 中国水利水电第十四工程局有限公司 | Anchor rib construction method is planted after a kind of concrete |
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| CN101748899B (en) | 2011-03-30 |
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