CN102493449A - Prestressed anchor bolt - Google Patents
Prestressed anchor bolt Download PDFInfo
- Publication number
- CN102493449A CN102493449A CN2011104349319A CN201110434931A CN102493449A CN 102493449 A CN102493449 A CN 102493449A CN 2011104349319 A CN2011104349319 A CN 2011104349319A CN 201110434931 A CN201110434931 A CN 201110434931A CN 102493449 A CN102493449 A CN 102493449A
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- Prior art keywords
- bolt
- crab
- anchor slab
- anchor
- prestressing force
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Abstract
The invention discloses a prestressed anchor bolt, and belongs to the technical field of connecting pieces between wind generator towers and foundations. The prestressed anchor bolt has the advantages that: a concrete volume between anchor bolts is large, a gap is absent between the anchor and concrete, and the strength and service life of the concrete can be ensured. The prestressed anchor bolt comprises an upper anchor plate and a lower anchor plate, wherein the lower anchor plate is connected with one end of the anchor bolt; and the other end of the anchor bolt extends out from a top plate above the upper anchor plate. The structural key point is that: the surface of the anchor bolt between the top plate and the lower anchor plate is provided with a viscosity reducing layer.
Description
Technical field
The invention belongs to wind generator tower tube and basic connector technical field, be specifically related to a kind of prestressing force crab-bolt.
Background technology
The wind power generation stepped single-pipe tower barrel structure that is generally, its base diameter is 3～5 meters, and requirement is connected with reinforced concrete foundation.At present this part connects and adopts tower tube flush type usually, and it is big that this method of attachment has a steel using amount, makes being embedded with suitable difficulty, disturbs many shortcomings with reinforcing bar.
The patent No. is the patent of invention of 200820150667.X, has announced a kind of " the combination type prestressed crab-bolt of three-dimensional scalable ", though that this crab-bolt has solved above-mentioned steel using amount is big, makes being embedded with suitable difficulty, disturbs many problems with reinforcing bar; But; Its crab-bolt is provided with crab-bolt plastics/PE sleeve pipe outward; This structure has two big fatal shortcomings: 1, owing in concrete, need be provided with on the circumference of diameter 3～5m and singlely or double be concentrically ringed crab-bolt, and be arranged on the gap that 1mm～2mm is arranged between plastics/PE sleeve pipe and the crab-bolt outside the crab-bolt; The intensity of crab-bolt plastics/PE sleeve pipe is lower.
2, owing to use the crab-bolt sleeve pipe, make between sleeve pipe and the crab-bolt, have the slit between sleeve pipe and the concrete, in the slit in if entering ponding; Not only can produce corrosion, reduce crab-bolt intensity crab-bolt, and at north of china in winter; Ponding can expand because of freezing; Make inside concrete bear the pulling force that brings by frost heave, cause concrete destruction, lead to disaster.
Summary of the invention
The present invention is exactly to the problems referred to above, provides the volume of concrete between a kind of crab-bolt and the crab-bolt big, and is seamless between crab-bolt and the concrete, can guarantee the prestressing force crab-bolt in concrete strength and application life.
For realizing above-mentioned purpose of the present invention; The present invention adopts following technical scheme, the present invention includes anchor slab and following anchor slab, and following anchor slab links to each other with an end of crab-bolt; The other end of crab-bolt is stretched out by the top board of last anchor slab top, and the crab-bolt surface between its structural feature top board and the following anchor slab is provided with the viscosity reduction layer.
Described viscosity reduction layer is skin of paint or smooth film.
Beneficial effect of the present invention: 1, the present invention removes from and imbeds the tower tube, and crab-bolt is directly imbedded column foot, makes column foot full height scope flexural strength, rigidity even; And, eliminated the problem that tower tube flush type and column foot reinforcing bar disturb.Overall steel using amount reduces.
2, compare with patent 200820150667.X, the present invention has replaced the crab-bolt sleeve pipe through adopting the viscosity reduction layer, thereby has avoided producing between crab-bolt and the concrete problem in slit; Inside concrete can not bear pulling force because ponding freezes, guaranteed concrete application life.
3, viscosity reduction layer of the present invention adopts plastic cement belt or smooth film, and its thickness is little, guarantees the volume of concrete between crab-bolt, thereby has guaranteed concrete intensity.
4 and the viscosity reduction layer when crab-bolt is born prestressing force, can substitute crab-bolt sleeve pipe used among the patent 200820150667.X fully, well realized isolating crab-bolt and concrete bonding function.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described further.Protection scope of the present invention will not only be confined to the statement of following content.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the perpendicular figure that cuts open of the present invention.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the B-B sectional view of Fig. 3.
Fig. 5 is the C-C sectional view of Fig. 3.
Fig. 6 is the D-D sectional view of Fig. 2.
Fig. 7 is the E-E sectional view of Fig. 2.
1 is crab-bolt in the accompanying drawing; 2 is the viscosity reduction layer; 3 is last anchor slab; 4 are following anchor slab; 5 for regulating the crab-bolt support; 6 is bolt and nut; 7 is stub; 8 is top board; 9 is anchor plate; 10 is dowel; 11 is end floor beam; 12 is upper flat plate; 13 is dull and stereotyped for down; 14 is riser; 15 is spike; 16 is reverse balance flange; 17 is first adjusting screw(rod); 18 is adjusting nut; 19 is last single anchor slab; 20 are the anchoring nut; 21 is interim gripper shoe; 22 is second adjusting screw(rod); 23 water groove after being; 24 are the anchor slab that places an order.
The specific embodiment
The present invention includes anchor slab 3 and following anchor slab 4, following anchor slab 4 links to each other with an end of crab-bolt 1, and the other end of crab-bolt 1 is stretched out by the top board 8 of last anchor slab 3 tops, and crab-bolt 1 surface between top board 8 and the following anchor slab 4 is provided with viscosity reduction layer 2.
Described viscosity reduction layer 2 is skin of paint or smooth film.
The reverse balance flange 16 that links to each other with crab-bolt 1 can be set on the described top board 8, be convenient to crab-bolt 1 is applied prestressing force and the first joint of tower tube is installed.
Be provided with between described upward anchor slab 3 and the ground and regulate crab-bolt support 5, regulate crab-bolt support 5 and fix through first adjusting screw(rod) 17 and adjusting nut 18 the same anchor slabs 3; Through regulating the accuracy that crab-bolt support 5 guarantees that crab-bolt 1 is installed.
Described adjusting crab-bolt support 5 links to each other with ground through stub 7.
The described anchor slab 3 of going up is spliced by last single anchor slab 19; Described single anchor slab 19 is made up of top board 8, anchor plate 9, dowel 10 and end floor beam 11; Described end floor beam 11 is arranged at the two ends of single anchor slab 19; Described top board 8 belows are provided with anchor plate 9 and dowel 10, and the described end floor beam 11 of single anchor slab 19 links to each other through bolt and nut 6 in twos.
Described down anchor slab 4 is spliced by the anchor slab 24 that places an order, and the described anchor slab 24 that places an order comprises that upper flat plate 12 is dull and stereotyped 13 with down, upper flat plate 12 and be provided with riser 14 between dull and stereotyped 13 down, and described crab-bolt 1 is passed upper flat plate 12 and is linked to each other with dull and stereotyped 13 anchoring nut 20 down; The described anchor slab 24 that places an order links to each other through bolt and nut 6 in twos.
Following dull and stereotyped 13 times the spike 15 that links to each other with ground can be set, be convenient to the installing and locating of anchor slab 4 down.
There are the gap in reverse balance flange 16 of institute and 8 on top board, can under the standard compliant prerequisite of the two-way verticality of tower tube, make top board 8 upwards be adjacent to reverse balance flange 16 with the interim gripper shoe 21 and second adjusting screw(rod) 22.
Described smooth film can be: films such as plastic adhesive tape, polyvinyl chloride, polyvinyl, polypropylene, polystyrene.
Claims (8)
1. prestressing force crab-bolt; Comprise anchor slab (3) and following anchor slab (4); One end of the same crab-bolt of following anchor slab (4) (1) links to each other; The other end of crab-bolt (1) is stretched out by the top board (8) of last anchor slab (3) top, and it is characterized in that: crab-bolt (1) surface between top board (8) and the following anchor slab (4) is provided with viscosity reduction layer (2).
2. a kind of prestressing force crab-bolt according to claim 1 is characterized in that: described viscosity reduction layer (2) is skin of paint or smooth film.
3. a kind of prestressing force crab-bolt according to claim 1 is characterized in that: described top board (8) top is provided with the reverse balance flange (16) that same crab-bolt (1) links to each other.
4. a kind of prestressing force crab-bolt according to claim 1; It is characterized in that: described going up is provided with adjusting crab-bolt support (5) between anchor slab (3) and the ground, it is fixing through first adjusting screw(rod) (17) and the same anchor slab of adjusting nut (18) (3) to regulate crab-bolt support (5).
According to claim 4 a kind of prestressing force crab-bolts of stating, it is characterized in that: described adjusting crab-bolt support (5) links to each other with ground through stub (7).
6. a kind of prestressing force crab-bolt according to claim 1; It is characterized in that: the described anchor slab (3) of going up is spliced by last single anchor slab (19); The described single anchor slab (19) of is made up of top board (8), anchor plate (9), dowel (10) and end floor beam (11); Described end floor beam (11) is arranged at the two ends of single anchor slab (19); Described top board (8) below is provided with anchor plate (9) and dowel (10), and the described end floor beam (11) of single anchor slab (19) links to each other through bolt and nut (6) in twos.
7. a kind of prestressing force crab-bolt according to claim 1; It is characterized in that: described anchor slab (4) down is spliced by the anchor slab that places an order (24); The described anchor slab that places an order (24) comprises upper flat plate (12) and down dull and stereotyped (13); Be provided with riser (14) between upper flat plate (12) and following dull and stereotyped (13), it is continuous with the anchoring nut (20) of down dull and stereotyped (13) that described crab-bolt (1) is passed upper flat plate (12); The described anchor slab that places an order (24) links to each other through bolt and nut (6) in twos.
8. a kind of prestressing force crab-bolt according to claim 7 is characterized in that: down dull and stereotyped (13) below is provided with the spike (15) that links to each other with ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104349319A CN102493449A (en) | 2011-12-22 | 2011-12-22 | Prestressed anchor bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104349319A CN102493449A (en) | 2011-12-22 | 2011-12-22 | Prestressed anchor bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102493449A true CN102493449A (en) | 2012-06-13 |
Family
ID=46185305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104349319A Pending CN102493449A (en) | 2011-12-22 | 2011-12-22 | Prestressed anchor bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102493449A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173024A (en) * | 2020-03-05 | 2020-05-19 | 中国铁塔股份有限公司 | Reinforcing device for communication tower construction |
-
2011
- 2011-12-22 CN CN2011104349319A patent/CN102493449A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111173024A (en) * | 2020-03-05 | 2020-05-19 | 中国铁塔股份有限公司 | Reinforcing device for communication tower construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120613 |