CN101429804A - Ellipse tower-shape anchor backing board - Google Patents
Ellipse tower-shape anchor backing board Download PDFInfo
- Publication number
- CN101429804A CN101429804A CNA2007101683212A CN200710168321A CN101429804A CN 101429804 A CN101429804 A CN 101429804A CN A2007101683212 A CNA2007101683212 A CN A2007101683212A CN 200710168321 A CN200710168321 A CN 200710168321A CN 101429804 A CN101429804 A CN 101429804A
- Authority
- CN
- China
- Prior art keywords
- ellipse
- anchor
- tower
- shape
- anchor backing
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a prestressed anchor component, in particular to an elliptical tower shaped anchor backing plate. The anchor backing plate is a tower shaped structural body which is hollow inside and is provided with at least two layers of convex steps in appearance; the large-end step, for sinking an anchor plate, of the anchor backing plate is an elliptical or ellipse-based track-shaped step, other steps are round or elliptical or ellipse-based track-shaped steps, the inside of the elliptical or ellipse-based track-shaped step of the anchor backing plate is integrally provided with grouting holes, and the anchor backing plate generally comprises 2 to 20 layers of the steps; and the proportion of the cross sectional area of the large-end step used for sinking the anchor plate to the cross sectional area of the last step of the anchor backing plate is between 1.5 to 1 and 4 to 1. The grouting holes of the elliptical tower shaped anchor backing plate are difficult to damage and leak slurry, which is favorable for the anchor backing plate to be arranged on the cross section of a member; and the pulling stress of concrete under an anchor has a small maximum value, the anchor backing plate has good safety performance, and the weight of a product is lighter at the same bearing requirement.
Description
Technical field:
The present invention relates to a kind of prestressed anchor parts, particularly a kind of anchor plate.
Background technology:
The circular tower shape anchor plate that existing a kind of inner hollow, profile have 2～10 layers of step that is separated has that stress under anchorage is little, little, the lightweight advantage of the volume of product, but also have the following disadvantages: 1, the injected hole of anchor plate protrudes the big end cylindrical of anchor plate, causes damage in the easy damaged in collision of transportation or at work progress; Simultaneously owing to protrude at big end cylindrical, injected hole less with the template bonding area easily causes spillage in the placing of concrete process.2, bury the concrete component of anchor plate underground, often thinner at certain direction section ratio, the power that can share is less, so, do more greatly if the pressure-bearing surface of anchor plate is complied with in the thicker direction of member section, the direction thin in the cross section done smallerly, and the stressed comparison of member can be reasonable.The external anchor plate that the rectangle bearing surface occurred, but the effect of rectangular four angle stragging stress is very little, and increase the flexural stress of anchor plate itself, be disadvantageous to structure.
Summary of the invention:
The technical problem to be solved in the present invention is: provide a kind of existing circular tower shape anchor plate is improved ellipse tower-shape anchor backing board back, that product structure is more optimized, to overcome the weak point of existing circular tower shape anchor plate.Simultaneously, find out the optimum ratio scope of two cross sectional area ratios of anchor plate.
The technical scheme that solves the problems of the technologies described above is: a kind of ellipse tower-shape anchor backing board is the pyramidal structure body that a kind of inner hollow, profile have two-layer at least boss rank; The big end step of described anchor plate sinking anchor slab is oval or based on the runway shape step of ellipse, injected hole integral body places in the oval step.
Further technical scheme of the present invention is: this anchor plate first order step is 1.5:1～4:1 with the cross sectional area ratio of afterbody step.
Because adopt above-mentioned measure to improve structure, the present invention compares with original anchor plate has following beneficial effect:
1. the not fragile and spillage of anchor plate injected hole:
Injected hole integral body places in the oval step, and injected hole is difficult for damaged in collision in transportation in the big end cylindrical of anchor plate; Simultaneously owing to, in the placing of concrete process, be difficult for causing that slurry enters in the grout hole from the mating face seepage at big end cylindrical.
2. being beneficial to anchor plate arranges on member section:
On the pre existing stress structure, often thinner in certain direction.At this moment, can be the weak direction of oval anchor plate short-axis direction over against member, long axis direction is more conducive to the distribution of member stress under anchorage along vertical with it, reduces the possibility of its anchorage zone cracking.
3. the maximum value of concrete pulling stress is little under the anchor, and the security performance of anchor plate is good:
Through the further calculation optimization of inventor, the cross-sectional area ratio of the first order of the maximum value of concrete pulling stress and anchor plate and afterbody raised step is closely related under the discovery anchor.Under the constant prerequisite of sectional area summation, the ratio of the area of first order step and afterbody step is more little, and concrete tensile stress maximum value is just more little under the anchor, and still, if ratio is too little, anchor plate then is absorbed in the concrete easily.So the ratio of the area of two cross sections of anchor plate is the ratio range that exists a best; Because the cross sectional area of the big end step of the present invention's circular tower shape anchor plate sinking anchor slab and the cross sectional area ratio of afterbody step are 1.5:1～4:1, it is more reasonable that the first order and afterbody step are born the stress ratio of dispersion, reduced tensile stress maximum value under its anchor, thereby can increase the safety of anchor plate, further improve the degree of safety of concrete component.
4. under equal load bearing requirements, the weight of product is lighter:
Because the boss rank ratio of the present invention's circular tower shape anchor plate is more reasonable, and the weight of anchor plate is alleviated greatly, volume also further reduces, thereby can reduce its cost of production.
Below, the technical characterictic to the present invention's anchor plate is further described in conjunction with the accompanying drawings and embodiments.
Description of drawings:
Fig. 1～Fig. 5: the ellipse tower-shape anchor backing board structural representation of the embodiment of the invention one:
Fig. 1: front view, the left view of Fig. 2: Fig. 1, the A-A sectional view of Fig. 3: Fig. 1,
Fig. 4: big end (first order) step cross section (the B-B sectional drawing of Fig. 1),
Fig. 5: small end step cross section (the C-C sectional drawing of Fig. 1);
Fig. 6～Figure 10: the ellipse tower-shape anchor backing board structural representation of the embodiment of the invention two:
Fig. 6: front view, the left view of Fig. 7: Fig. 6, the D-D sectional view of Fig. 8: Fig. 6,
Fig. 9: big end (first order) step cross section (the E-E sectional drawing of Fig. 6),
Figure 10: small end step cross section (the F-F sectional drawing of Fig. 6);
Figure 11: the runway shape anchor plate structural representation (left view) based on ellipse of the embodiment of the invention three;
Figure 12～Figure 14: several ellipse tower-shape anchor backing board structural representations in addition of the embodiment of the invention:
Figure 12: 5 layers ellipse tower-shape anchor backing board (the main sectional view of looking),
Figure 13: the ellipse tower-shape anchor backing board of projection is arranged between two steps,
Figure 14: the ellipse tower-shape anchor backing board that pit is arranged between two steps.
The specific embodiment:
Embodiment one:
A kind of oval anchor plate is the pyramidal structure body that a kind of inner hollow, profile have two-layer boss rank; The big end step 1 of described anchor plate sinking anchor slab is oval step, and small end step 2 is a step cutting pattern, and injected hole 3 integral body place in the oval-shaped step, is that smooth disc is (referring to Fig. 1～Fig. 3) between the two-layer step.
In the present embodiment, the cross sectional area S1 that holds step 1 greatly with the ratio of the cross section S2 area S2 of small end step 2 is: 2:1～3:1 is (referring to Fig. 4～Fig. 5).
Embodiment two:
A kind of oval anchor plate is the pyramidal structure body that a kind of inner hollow, profile have two-layer boss rank; The big end step of described anchor plate sinking anchor slab is oval step, and small end step 2 also is oval step, and injected hole 3 integral body place in the oval-shaped step, is that stepped not only sliding surface is (referring to Fig. 6～Fig. 8) between the two-layer step in the present embodiment.
In the present embodiment, the cross sectional area S1 that holds step 1 greatly with the ratio of the cross section S2 area S2 of small end step 2 is: 2:1～3:1 is (referring to Fig. 9～Figure 10).
Embodiment three:
A kind of runway shape anchor plate based on ellipse, its basic structure are pyramidal structure bodies that a kind of inner hollow, profile have two-layer boss rank with embodiment one or embodiment two; Institute's difference is: the big end step of described anchor plate sinking anchor slab is based on oval runway shape step (referring to Figure 11), be after clipping one section arc on the minor axis of ellipse symmetrically, form connect the runway shape based on ellipse of two elliptic arcs by two parallel straight line two ends, the small end step is a step cutting pattern, injected hole integral body places in the runway shape step based on ellipse, is smooth disc or stepped not only sliding surface between the two-layer step.
In the present embodiment, the cross sectional area S1 that holds step greatly with the ratio of the cross section S2 area S2 of small end step is: 2:1～3.5:1.
As the embodiment of the invention one, embodiment two, a kind of conversion of embodiment three, described oval anchor plate or also can increase to 3 layers based on the number of plies of the runway shape anchor plate step of ellipse, 4 layers, 5 layers, 6 layers, until 20 layers, except that the big end step 1 of sinking anchor slab be oval or runway shape step based on ellipse, all the other each layer steps can be for step cutting pattern or oval step or based on the runway shape step of ellipse, Figure 12 represents a kind of 5 layers oval anchor plate (the main sectional view of looking), at this moment, the cross sectional area S1 of big end step 1 also can correspondingly be changed to the ratio of the cross sectional area S2 of small end step 2: generally can be 1.5:1～4:1, decide according to the anchoring needs, its optimum value is 2:1～3:1.
Another conversion as the embodiment of the invention, described oval anchor plate or also can be rough disc based on the body of the tower profile between two steps of the runway shape anchor plate of ellipse, as the rough disc that pit or projection arranged respectively or pit or projection arranged simultaneously (referring to Figure 13～Figure 14), Figure 13 represents between two steps boss is arranged, and Figure 14 represents between two steps pit is arranged.
As another conversion of the embodiment of the invention, 3～20 layers more than of the present invention oval anchor plate of layer or also can be rough discs such as smooth disc is stepped or concavo-convex based on the shape of the body of the tower profile between the every two-layer step of runway shape anchor plate of ellipse.
Claims (10)
1. an ellipse tower-shape anchor backing board is the pyramidal structure body that a kind of inner hollow, profile have two-layer at least boss rank; It is characterized in that: the big end step of described anchor plate sinking anchor slab is oval or based on the runway shape step of ellipse, injected hole integral body places in ellipse or the runway shape step based on ellipse.
2. ellipse tower-shape anchor backing board according to claim 1 is characterized in that: described anchor plate is that all the other each layer steps are step cutting pattern ellipse or the runway shape step based on ellipse except that the big end step of sinking anchor slab.
3. ellipse tower-shape anchor backing board according to claim 1 is characterized in that: each of described anchor plate layer step is oval step.
4. ellipse tower-shape anchor backing board according to claim 1 is characterized in that: each of described anchor plate layer step is the runway shape step based on ellipse.
5. according to claim 1,2,3 or 4 described ellipse tower-shape anchor backing boards, it is characterized in that: the step number of plies of described anchor plate is 2～20 layers.
6. ellipse tower-shape anchor backing board according to claim 5 is characterized in that: the step number of plies of described anchor plate is 2～10 layers.
7. ellipse tower-shape anchor backing board according to claim 5 is characterized in that: the cross sectional area of the big end step of this anchor plate sinking anchor slab and the cross-sectional area ratio of afterbody step are 1.5:1～4:1.
8. ellipse tower-shape anchor backing board according to claim 5 is characterized in that: the cross sectional area of the big end step of this anchor plate sinking anchor slab and the cross-sectional area ratio of afterbody step are 2:1～3:1.
9. according to claim 1,2,3 or 4 described ellipse tower-shape anchor backing boards, it is characterized in that: the shape of the body of the tower profile between the every two-layer step of described anchor plate is the stepped or concavo-convex rough disc of smooth disc.
10. ellipse tower-shape anchor backing board according to claim 6 is characterized in that: the shape of the body of the tower profile between the every two-layer step of described anchor plate is the stepped or concavo-convex rough disc of smooth disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101683212A CN101429804A (en) | 2007-11-09 | 2007-11-09 | Ellipse tower-shape anchor backing board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101683212A CN101429804A (en) | 2007-11-09 | 2007-11-09 | Ellipse tower-shape anchor backing board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101429804A true CN101429804A (en) | 2009-05-13 |
Family
ID=40645421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101683212A Pending CN101429804A (en) | 2007-11-09 | 2007-11-09 | Ellipse tower-shape anchor backing board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101429804A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787774A (en) * | 2010-03-23 | 2010-07-28 | 北京交通大学 | Anchor device applicable to pore canals with neks |
| CN103732842A (en) * | 2011-07-18 | 2014-04-16 | R·J·维尔纳 | Tower-shaped supporting structure |
| CN110629935A (en) * | 2018-06-25 | 2019-12-31 | 广西科技大学 | Prestressed anchor backing plate |
| CN111707560A (en) * | 2020-06-19 | 2020-09-25 | 威胜利工程有限公司 | Cooling structure for low-temperature anchoring performance test |
-
2007
- 2007-11-09 CN CNA2007101683212A patent/CN101429804A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787774A (en) * | 2010-03-23 | 2010-07-28 | 北京交通大学 | Anchor device applicable to pore canals with neks |
| CN103732842A (en) * | 2011-07-18 | 2014-04-16 | R·J·维尔纳 | Tower-shaped supporting structure |
| CN110629935A (en) * | 2018-06-25 | 2019-12-31 | 广西科技大学 | Prestressed anchor backing plate |
| CN111707560A (en) * | 2020-06-19 | 2020-09-25 | 威胜利工程有限公司 | Cooling structure for low-temperature anchoring performance test |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201460241U (en) | Prestress high-strength steel mesh anchorage | |
| CN106193643B (en) | A kind of Prestressed CFRP plate stretching and anchoring device of reinforcing steel beam and combination beam | |
| WO2017049809A1 (en) | Cement-soil mixing pile having stiffening core pile with variable diameter | |
| CN104805767A (en) | Prefabricated assembly FRP-reinforcing steel-bar-concrete combined bridge deck and construction method | |
| CN101429804A (en) | Ellipse tower-shape anchor backing board | |
| CN101435227A (en) | Filling stainless steel tube component - stainless steel tube welding connection node | |
| CN103898834B (en) | A kind of steel tube concrete combination beam and truss-like Sarasota cable-stayed bridge and construction method thereof | |
| CN201915526U (en) | Large-opening composite steel plate shear wall | |
| CN201151974Y (en) | Elliptical tower shape anchor backing board | |
| CN102888855B (en) | Combined balance weight retaining wall | |
| CN201598778U (en) | FRP reinforcing anchorage device | |
| CN101319519B (en) | Cast steel node suitable for truss string structure double-cable stretching | |
| CN206680860U (en) | Pin-connected panel steel assembled pier | |
| CN215408998U (en) | Wind turbine generator system concrete tower section of thick bamboo prestressing force steel strand end protection device | |
| CN201560495U (en) | Novel ground cable-arch structure | |
| CN210530455U (en) | Transmission of electricity combination pole concatenation node and transmission of electricity combination pole | |
| CN201250449Y (en) | Cast steel joint suitable for double-cable tension of truss string strut | |
| CN201835522U (en) | Steel-and-wood composite beam for molding and supporting reinforced concrete member | |
| CN201236719Y (en) | Arc-connection locker for girder anchor cable | |
| CN102747727A (en) | Prestressed concrete centrifugal square pile | |
| CN215857129U (en) | Reinforced bridge structure | |
| CN105040849A (en) | Prestressed concrete-filled steel tube buckling-restrained supporting member | |
| CN2602163Y (en) | Anchor wire isolation rack | |
| CN104818804B (en) | A kind of anti-torsion releases strand tapered anchorage assembly system | |
| CN215052043U (en) | A shear force support for small-span connecting bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090513 |