CN204266121U - Button anchor system combinations formula pile foundation support table anchorage - Google Patents
Button anchor system combinations formula pile foundation support table anchorage Download PDFInfo
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- CN204266121U CN204266121U CN201420674646.3U CN201420674646U CN204266121U CN 204266121 U CN204266121 U CN 204266121U CN 201420674646 U CN201420674646 U CN 201420674646U CN 204266121 U CN204266121 U CN 204266121U
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Abstract
A kind of button anchor system combinations formula pile foundation support table anchorage, comprise multi beam prestress anchorage cable and multiple tail rope anchorage, each tail rope anchorage is made up of many prestressing force dowels, anchoring part and anchor case, anchor case and anchoring part pass through hinge, and anchor case is connected with tail rope by P type anchor, prestressing force dowel one section penetrates in reinforced concrete beam, and another section penetrates in anchoring part; It is characterized in that: multiple tail rope anchorage and multi beam prestress anchorage cable are inclined on cushion cap, cushion cap is fixed in reinforcing bar and mixes in pure land pile foundation; Anchoring part is fixed on the anchor block on cushion cap by many prestressing force dowels.The horizontal force that the pre-stretch-draw of self shear behavior of the utility model pile foundation, frictional force between cushion cap with ground and prestress anchorage cable produces can effectively be combined, the horizontal component that common opposing tail rope transmits; The vertical force component that prestress anchorage cable initial tensioning produces and cushion cap deadweight combine and can resist the vertical force component of tail rope transmission.Effective combination of whole pile foundation support table anchorage system each several part, can promote service behaviour and the safety of pile foundation support table anchorage greatly.
Description
Technical field
The utility model belongs to a kind of building operations equipment, in particular to one button anchor system combinations formula pile foundation support table anchorage, this device is reinforced concrete arch bridge stiff skeleton free cantilever erection supporting facility, is highly suitable for tail rope anchorage in stiff skeleton segment lifting process.
Background technology
According to Arch Bridge Construction practice both at home and abroad at present, adopt the anchorage of the forms such as anchor pier, gravity and tunnel type as the anchorage of button anchor system in bridge stiff skeleton hoisting process of the same type more, not only waste a large amount of human and material resources and financial resources, more importantly the construction of above-mentioned form anchorage brings disturbance all can to precipitous side slope, and be faced with tail rope angle simultaneously and should not adjust, a series of difficult problems such as tail rope easily being bent, Engineering Quality Control difficulty is large, the construction period is long.
Summary of the invention
The utility model provides a kind of button anchor system combinations formula pile foundation support table anchorage, this anchorage makes full use of access bridge pile foundation support table, the safe mass faced in the cost waste that anchorage of can effectively avoiding again constructing brings and work progress controls a difficult problem, and structure stress is clear and definite, easy construction.
As above conceive, the technical solution of the utility model is: a kind of button anchor system combinations formula pile foundation support table anchorage, comprise multi beam prestress anchorage cable and multiple tail rope anchorage, each tail rope anchorage is made up of many prestressing force dowels, anchoring part and anchor case, anchor case and anchoring part pass through hinge, and anchor case is connected with tail rope by P type anchor, and prestressing force dowel one section penetrates in reinforced concrete beam, and another section penetrates in anchoring part; It is characterized in that: multiple tail rope anchorage and multi beam prestress anchorage cable are inclined on cushion cap, cushion cap is fixed in reinforcing bar and mixes in pure land pile foundation; Anchoring part is fixed on the anchor block on cushion cap by many prestressing force dowels.
Above-mentioned multiple tail rope anchorage is parallel with multi beam prestress anchorage cable to be packed on cushion cap, and arranged crosswise.
Above-mentioned each anchoring part connects 6 prestressing force dowels.
Above-mentioned cushion cap is arranged 12 bundle prestress anchorage cables.
Above-mentioned cushion cap is shaped with prestress anchorage cable notch.
The utility model has following advantage and good effect:
1, utilize access bridge cushion cap as the middle force transferring structure body of tail rope and rock mass.
2, utilize pile foundation self shear behavior, resist the horizontal force that a part of anchor cable brings.
3, between access bridge cushion cap and massif side slope, arrange prestress anchorage cable, prestressed cable anchorage, in massif, resists by pre-stretch-draw the uneven level and vertical force that tail rope brings cushion cap.
4, only establish oblique prestress anchorage cable (steel strand), by the pre-stretch-draw of prestress anchorage cable and reinforced concrete beam is fixed on scar by duct slip casting, guarantee that prestress anchorage cable self tensile strength safety factor is greater than 1.6.
5, according to balance cable force, calculate the prestressing force of every root prestress anchorage cable, and carry out pre-stretch-draw, the stressed of pile foundation support table anchorage and security performance can be verified in advance.
6, prestress anchorage cable and to be domaticly arranged vertically, the anchoring section of prestress anchorage cable is generally arranged in weak weathered stratum, and according to parameters such as the Allowable Stress Design value of rock mass and the ultimate bond stress between hole wall and injecting cement paste, calculate anchoring depth, and guarantee that freedom length is not less than 5m.
7, anchoring part is fixed on the anchor block of reinforced concrete beam by pre-stretch-draw by prestressing force dowel (essence pricks screw-thread steel), and initial tensioning power is not more than 0.8 times of the tensile strength of prestressing force dowel own.
8, anchoring part and anchor case carry out hinged by bearing pin, and both can relatively rotate more than 180 °, reach the object of adjustment tail rope angle.
9, by P type anchor, anchor case is connected with tail rope, and balance cable force is passed to combined type pile foundation support table anchorage system.
To sum up, the horizontal force that the pre-stretch-draw of self shear behavior of the utility model pile foundation, frictional force between cushion cap with ground and prestress anchorage cable produces can effectively be combined, the horizontal component that common opposing tail rope transmits; The vertical force component that prestress anchorage cable initial tensioning produces and cushion cap deadweight combine and can resist the vertical force component of tail rope transmission.Effective combination of whole pile foundation support table anchorage system each several part, can promote service behaviour and the safety of pile foundation support table anchorage greatly.
Accompanying drawing illustrates:
Fig. 1 is combined type pile foundation support table anchorage facade arrangement diagram;
Fig. 2 is that combined type pile foundation support table anchorage prestress anchorage cable arranges elevation;
Fig. 3 is combined type pile foundation support table anchorage plane of arrangement figure;
Fig. 4 is prestress anchorage cable structure chart;
Fig. 5 is prestressing force dowel structure chart;
Fig. 6 is that anchor bearing structure arranges elevation;
Fig. 7 is that anchor box structure arranges elevation.
1. pile foundations, 2. cushion cap in figure, 3. prestressing force dowel, 4. prestressing force dowel backing plate; 5. anchor block reinforcing bar, 6. anchor block, 7. anchoring part, 8. prestressing force dowel nut; 9. bearing pin, 10. anchor case, 11. tail ropes, 12. prestress anchorage cables; 13. prestress anchorage cable notches, 14. prestress anchorage cable backing plates, 15. ground tackles, 16. protective covers; 17. bellowss, 18. prestress anchorage cable borings, 19. prestressed cable anchorage sections, 20. prestress anchorage cable free segments; 21. Grouting Pipe, 22. sleeve pipes, 23. spiral bars.
Detailed description of the invention:
A kind of button anchor system combinations formula pile foundation support table anchorage, comprise multi beam prestress anchorage cable and multiple tail rope anchorage, each tail rope anchorage is made up of many prestressing force dowels, anchoring part and anchor case.Multiple tail rope anchorage and multi beam prestress anchorage cable tilt intersect and be set in parallel on cushion cap, and cushion cap is fixed in reinforcing bar and mixes in pure land pile foundation; Anchoring part is fixed on the anchor block on cushion cap by many prestressing force dowels.Above-mentioned cushion cap is shaped with prestress anchorage cable notch.
Work progress of the present utility model is:
1, prestress anchorage cable 11 adopts pulling force decentralized, and buried depth is respectively 55m (the long 10m of prestressed cable anchorage section 19) and 60m (the long 15m of prestressed cable anchorage section 19).First construction bearing platform pile foundation 1, then adopt down-the-hole drill dry drill method construction prestress anchorage cable boring 18 according to design angle, boring enters the weak weathered stratum degree of depth and is not less than anchoring section 19 length.
Carry out eliminating rust in prestressed cable anchorage section 19 surface that 2, will penetrate, oil removal treatment, and prestress anchorage cable free segment 20 carries out preservative treatment.Penetrate prestress anchorage cable 12, grouting plug is set, first by Grouting Pipe 21 0.4MPa pressure, grouting plug is filled, treat that strength of cement grout reaches the slip casting of 20MPa intensity laggard perform hole inner high voltage.
3, colligation cushion cap 2 reinforcing bar, installs anchoring part prestressing force dowel 3, is embedded in the prestressing force dowel nut 8 of cushion cap 2 inside, backing plate 4, spiral bar 23 and sleeve pipe 22; Prestress anchorage cable 12 overcoat bellows 22, through cushion cap 2, arranges billet to disperse the pressure to concrete anchor block 6 between ground tackle 15 and anchor block 6; Install template and build cushion cap 2 concrete; Reach after cement grout intensity reaches 80% in design strength 95%, prestress anchorage cable boring 18 can be stretched to 900KN to often restrainting prestress anchorage cable 12 until cushion cap 2 concrete strength, tighten up ground tackle 15 after stretch-draw completes, and add ground tackle protective cover 16.
4, anchoring part 7 is installed, 400KN is stretched to every root prestressing force dowel 3, after stretch-draw completes, tightens the prestressing force dowel nut 8 contacted with anchoring part 7.
5, by P type anchor, tail rope 11 is connected with anchor case 10, by bearing pin 9, anchor case 10 is connected with anchoring part 7, guarantee freely to rotate in scope of design between anchor case 10 and anchoring part 7.
After said process completes, can carry out stretch-draw to according to designing requirement Suo Li to tail rope 11, so far, button anchor system combinations formula pile foundation support table anchorage formally comes into operation.
The utility model is in stiff skeleton segment lifting process, by knotted rope, Suo Li is transmitted give-commission tower, recycling tail rope balances the unbalanced load of button tower, power is passed to cushion cap by the prestressing force dowel again by being connected with anchoring part, last power of being born by concrete beam by prestress anchorage cable passes to massif, this structural system is clearly stressed, and construction operating mode is effectively controlled.
Claims (5)
1. a button anchor system combinations formula pile foundation support table anchorage, comprise multi beam prestress anchorage cable and multiple tail rope anchorage, each tail rope anchorage is made up of many prestressing force dowels, anchoring part and anchor case, anchor case and anchoring part pass through hinge, and anchor case is connected with tail rope by P type anchor, prestressing force dowel one section penetrates in reinforced concrete beam, and another section penetrates in anchoring part; It is characterized in that: multiple tail rope anchorage and multi beam prestress anchorage cable are inclined on cushion cap, cushion cap is fixed in reinforcing bar and mixes in pure land pile foundation; Anchoring part is fixed on the anchor block on cushion cap by many prestressing force dowels.
2. button anchor system combinations formula pile foundation support table anchorage according to claim 1, is characterized in that: above-mentioned multiple tail rope anchorage is parallel with multi beam prestress anchorage cable to be packed on cushion cap, and arranged crosswise.
3. button anchor system combinations formula pile foundation support table anchorage according to claim 1, is characterized in that: above-mentioned each anchoring part connects 6 prestressing force dowels.
4. button anchor system combinations formula pile foundation support table anchorage according to claim 1, is characterized in that: above-mentioned cushion cap is arranged 12 bundle prestress anchorage cables.
5. button anchor system combinations formula pile foundation support table anchorage according to claim 1, is characterized in that: above-mentioned cushion cap is shaped with prestress anchorage cable notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674646.3U CN204266121U (en) | 2014-11-12 | 2014-11-12 | Button anchor system combinations formula pile foundation support table anchorage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420674646.3U CN204266121U (en) | 2014-11-12 | 2014-11-12 | Button anchor system combinations formula pile foundation support table anchorage |
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| CN204266121U true CN204266121U (en) | 2015-04-15 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696464A (en) * | 2016-04-27 | 2016-06-22 | 中国电建集团昆明勘测设计研究院有限公司 | Suspension bridge anchorage anchoring device |
| CN106351121A (en) * | 2016-11-01 | 2017-01-25 | 中国科学院武汉岩土力学研究所 | Suspension cable bridge abutment type pre-stress anchorage |
| CN107059617A (en) * | 2016-12-24 | 2017-08-18 | 中铁十八局集团有限公司 | A kind of interim anchorage of combined type |
| CN108166493A (en) * | 2018-02-26 | 2018-06-15 | 温州设计集团有限公司 | A kind of angle regulator applied on prestress anchorage cable anchor head |
| CN108517775A (en) * | 2018-06-08 | 2018-09-11 | 王燕春 | A kind of Sarasota structure and application |
| CN109235490A (en) * | 2018-11-16 | 2019-01-18 | 青岛业高建设工程有限公司李沧分公司 | Retaining wall and its construction method |
| CN111894026A (en) * | 2020-04-10 | 2020-11-06 | 中铁上海工程局集团有限公司 | Tunnel type pile foundation bearing platform combined anchorage structure and installation method thereof |
| CN114086554A (en) * | 2021-11-30 | 2022-02-25 | 广西路桥工程集团有限公司 | Permanent temporary combined type ground anchor and establishing method thereof |
| CN115977134A (en) * | 2022-12-30 | 2023-04-18 | 中铁五局集团有限公司 | Pile-anchor combined foundation structure construction method |
-
2014
- 2014-11-12 CN CN201420674646.3U patent/CN204266121U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696464A (en) * | 2016-04-27 | 2016-06-22 | 中国电建集团昆明勘测设计研究院有限公司 | Suspension bridge anchorage anchoring device |
| CN106351121A (en) * | 2016-11-01 | 2017-01-25 | 中国科学院武汉岩土力学研究所 | Suspension cable bridge abutment type pre-stress anchorage |
| CN107059617A (en) * | 2016-12-24 | 2017-08-18 | 中铁十八局集团有限公司 | A kind of interim anchorage of combined type |
| CN108166493A (en) * | 2018-02-26 | 2018-06-15 | 温州设计集团有限公司 | A kind of angle regulator applied on prestress anchorage cable anchor head |
| CN108517775A (en) * | 2018-06-08 | 2018-09-11 | 王燕春 | A kind of Sarasota structure and application |
| CN109235490A (en) * | 2018-11-16 | 2019-01-18 | 青岛业高建设工程有限公司李沧分公司 | Retaining wall and its construction method |
| CN109235490B (en) * | 2018-11-16 | 2024-05-03 | 青岛业高建设工程有限公司 | Retaining wall and construction method thereof |
| CN111894026A (en) * | 2020-04-10 | 2020-11-06 | 中铁上海工程局集团有限公司 | Tunnel type pile foundation bearing platform combined anchorage structure and installation method thereof |
| CN114086554A (en) * | 2021-11-30 | 2022-02-25 | 广西路桥工程集团有限公司 | Permanent temporary combined type ground anchor and establishing method thereof |
| CN115977134A (en) * | 2022-12-30 | 2023-04-18 | 中铁五局集团有限公司 | Pile-anchor combined foundation structure construction method |
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