CN2900617Y - Double regulating cable low stress clamp sheet anchoring system - Google Patents
Double regulating cable low stress clamp sheet anchoring system Download PDFInfo
- Publication number
- CN2900617Y CN2900617Y CN 200620034582 CN200620034582U CN2900617Y CN 2900617 Y CN2900617 Y CN 2900617Y CN 200620034582 CN200620034582 CN 200620034582 CN 200620034582 U CN200620034582 U CN 200620034582U CN 2900617 Y CN2900617 Y CN 2900617Y
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- anchor
- low stress
- intermediate plate
- dual
- groove
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Abstract
The utility model belonging to the technical field of structural element, in particular to an anchoring system of a dual adapting cable low stress clip, which comprises a working anchor pressed onto a bearing plate connected with a steel anchor case rib plate or an anchor concrete back wall. The utility model is simple in structure, reasonable in designing, easy in operating, reliable in anchoring and pressing the integral group anchor, convenient in detaching, which meets the high demand of the concrete arch ring segment suspension arm casting to deflection due to that either the rough adapting cable or the micro adapting cable can be deflected, which is material-saving, ecconomic and safe.
Description
Technical field:
The utility model belongs to the structural element technical field, particularly be a kind of dual accent rope low stress intermediate plate anchor system.
Background technology:
In large-span steel-reinforced concrete box arch bridge job practices, employing Hanging Basket cantilever pouring main arch circle piecemeal becomes the arch construction technology to still belong to the first time at home.This method is that the button tower is set on the pier of boundary, after the segmented cantilever pouring of arch ring is finished, hangs on the steel anchor box that is anchored in the button cat head by steel strand knotted rope segmentation button, and is delivered on the anchorage of two sides by the out-of-balance force of steel strand anchor cable with knotted rope.Sections free cantilever casting finish and reach the button anchorage cable stretching intensity of design code after detain anchorage cable stretching, the Hanging Basket that moves forward afterwards carries out the construction of next sections, so circulation is closed up the construction working of finishing the main arch circle until the main arch circle.If adopt the steel strand stay cable Special ground tackle then have following problem: (1) suspension cable Special ground tackle is longer, and the space is limited under the stretch-draw reaction frame, difficult arrangement and uneconomical; (2) the steel strand tension anchoring of each anchoring unit is single one by one carries out, long in time limit; (3) transferring rope is to carry out stretch-draw in steel strand cutting back by tension rod, and steel bar concrete arch ring sections free cantilever casting steel strand button to retouch rope be interim rope, must remove after using up, difficulty is removed in steel strand cutting back, and can not reuse.The patent No. is that 03234873.8 adjustable rope low stress intermediate plate anchor system is to drive in the intermediate plate by the stretch-draw steel strand and by steel strand self retraction to move anchoring, can not realize fine adjustment function, only is applicable to the steel work that tensile strength is high.Because steel bar concrete main arch circle does not have prestressing force, and the tensile strength of concrete is very low, so it is difficult to satisfy the needs that reinforced concrete arch bridge section free cantilever casting construction technology becomes arch, in this construction technology, had needed not only displacement coarse adjustment rope greatly but also can little displacement have finely tuned the dual accent rope low stress anchor system of rope.
The utility model content:
The purpose of this utility model is for overcoming the problem of above-mentioned existence, providing a kind of dual accent rope low stress intermediate plate anchor system, to satisfy the needs of steel bar concrete arch bridge main arch circle sections free cantilever casting.
The technical solution of the utility model is achieved in that
The dual accent rope of the utility model low stress intermediate plate anchor system comprises work anchor, and work anchor is pressed on the pressure-bearing backing plate that is connected on steel anchor box floor or the anchorage concrete parados.
Above-mentioned dual accent rope low stress intermediate plate anchor system, there is screw thread on the surface of the round anchor circle of work anchor, the adjusting nut that is engaged with is arranged on it, groove is arranged on the adjusting nut, the briquetting that cooperates is arranged on the groove with it, groove is arranged on the briquetting, be contained in and be fastened on the pressure-bearing backing plate after lock(ing) bolt one end on the groove passes groove, the other end presses on briquetting, thereby adjusting nut is pressed on the pressure-bearing backing plate.
Above-mentioned dual accent rope low stress intermediate plate anchor system, the groove on the adjusting nut is a groove.
Above-mentioned dual accent rope low stress intermediate plate anchor system, the groove on the briquetting is a bar-shaped trough.
Above-mentioned dual accent rope low stress intermediate plate anchor system has through hole on the pressure-bearing backing plate, and the back side of pressure-bearing backing plate is fixed with the internal diameter noose pipe identical with the through hole internal diameter.
Above-mentioned dual accent rope low stress intermediate plate anchor system, the aperture of through hole is external diameter+(5～10) mm of circle anchor circle.
Dual accent rope low stress intermediate plate anchor system of the present utility model is except that the stretch-draw with existing ground tackle, roof pressure, locking, the convenient function of removing of locking, on accent Suo Gongneng, both steel strand rope integral body can have been pulled out and realize big displacement coarse adjustment rope, can make ground tackle with whole external the moving of steel strand rope again, realize the fine adjustment function of little displacement accent rope by the rotation adjusting nut.Before transferring rope, install anchor system roof pressure jack, reaction frame, stretch-draw jack and auxiliary work anchor are installed in desire accent rope position.Transfer rope to divide big displacement coarse adjustment rope and two kinds of situations of little displacement fine setting rope:
Big displacement transfers rope to be meant the operating mode of the amplitude of accommodation greater than 50mm.Before rope is transferred in big displacement, regulating briquetting with the adjusting nut engagement moves in the groove that stretches into the work anchor adjusting nut in making it and tightens lock(ing) bolt, make the work anchor adjusting nut all the time with the parados of floor that is fixed on steel anchor box or anchorage concrete on the pressure-bearing backing plate be connected closely, avoid work anchor to move with steel strand are outer.The lock screw bolt of the special pressing plate of work anchor is unclamped, make special pressing plate break away from the intermediate plate certain distance.Make steel strand stressed and intermediate plate pulled out in the lump with steel strand for stretch-draw jin top in thousand fuel feeding, the locating piece on the locking screw tightening latch is propped up special pressing plate, intermediate plate connects follow-up when avoiding intermediate plate to loosen with steel strand by the contact bolt.Adjust to when meeting the requirements when the button anchor cable, regulate lock bolt special pressing plate is combined with intermediate plate closely, get in touch bolt major part and special pressing plate and come to nothing, intermediate plate and steel strand follow up synchronously when being convenient to the oil return of stretch-draw jack.Give roof pressure jack fuel feeding afterwards and tighten lock bolt, make special pressing plate closely connected, finish big displacement and transfer rope work in the intermediate plate rear end.
Little displacement transfers rope to be meant that the amplitude of accommodation is less than or equal to the operating mode of 50mm.Before rope is transferred in little displacement, keep special pressing plate to be connected with the tight of intermediate plate, lock bolt is in locking state all the time, unclamps the lock(ing) bolt of briquetting, briquetting is shifted out the groove of adjusting nut outward and fixes.Work anchor integral body is moved for stretch-draw jack fuel feeding with steel strand are together outer, adjusting nut breaks away from the pressure-bearing backing plate of work anchor, calculate the rotation revolution according to adjusting length and adjusting nut pitch, rotate to the back that meets the requirements and give the oil return of stretch-draw jack, the work anchor adjusting nut is close on the work anchor pressure-bearing backing plate, is finished little displacement and transfer rope work.
Dual accent rope low stress intermediate plate anchor system of the present utility model is simple in structure, reasonable in design, convenient and flexible operation, the whole roof pressure anchoring of group's anchor is reliable, it is convenient to remove, can satisfy concrete arch rings sections free cantilever casting to the demanding actual needs of displacement, not only displacement coarse adjustment rope but also can little displacement fine setting rope greatly, the ground tackle materials are economized, not only economy but also safety.
Description of drawings:
Fig. 1 is the structural representation of the work anchor of dual accent rope low stress intermediate plate anchor system of the present utility model.
Fig. 2 is the working state schematic representation of dual accent rope low stress intermediate plate anchor system of the present utility model.
Fig. 3 is that the rope schematic diagram is transferred in the big displacement of dual accent rope low stress intermediate plate anchor system of the present utility model.
Fig. 4 is that the rope schematic diagram is transferred in the little displacement of dual accent rope low stress intermediate plate anchor system of the present utility model.
The specific embodiment:
Embodiment 1:
As shown in Figure 1, dual accent rope low stress intermediate plate anchor system of the present utility model comprises work anchor 1, and work anchor 1 is pressed on the pressure-bearing backing plate 2 that is fixed on the steel anchor box floor 11.
Above-mentioned dual accent rope low stress intermediate plate anchor system, there is external screw thread on the surface of the round anchor circle 3 of work anchor 1, the adjusting nut 4 that is engaged with is arranged on it, on the adjusting nut 4 fluted 5, the briquetting 6 that cooperates is arranged on the groove 5 with it, bar-shaped trough 7 is arranged on the briquetting 6, be contained in and be fastened on the pressure-bearing backing plate 2 after lock(ing) bolt 8 one ends on the bar-shaped trough 7 pass bar-shaped trough 7, the other end is pressed on the briquetting 6, thereby adjusting nut 4 is pressed on the pressure-bearing backing plate 2.
Above-mentioned dual accent rope low stress intermediate plate anchor system has through hole 9 on the pressure-bearing backing plate 2, the back side of pressure-bearing backing plate 2 is fixed with the internal diameter noose pipe 10 identical with through hole 9 internal diameters.
Above-mentioned dual accent rope low stress intermediate plate anchor system, the aperture of through hole 9 is the external diameter+6mm of circle anchor circle 3.
As shown in Figure 2, use dual accent rope low stress intermediate plate anchor system of the present utility model, before transferring rope, install anchor system, with YY1250 type roof pressure jack 13, be installed on the right side of the bearing plate 15 of reaction frame 14, stretch-draw jack 16 is installed on the left side of the bearing plate 15 of reaction frame 14, moveable anchor 17 is installed in the front end of stretch-draw jack 16, by the groove 5 of the adjusting nut 4 on the solid anchor circle 3 of work anchor 1 with the briquetting 6 that cooperates with it and be contained in lock(ing) bolt 8 on the bar-shaped trough 7 of briquetting 6, work anchor 1 is pressed on the pressure-bearing backing plate 2 that is fixed on the anchorage concrete parados 12, makes two accent rope low stress intermediate plate anchor systems in running order.
As shown in Figure 3,, before transferring rope, earlier briquetting 6 is stretched in the groove 5 of adjusting nut 4 of work anchor 1, tighten lock(ing) bolt 8 when dual accent rope low stress intermediate plate anchor system of the present utility model during at the big displacement coarse adjustment of needs rope.Make 16 oil-feeds of stretch-draw jack to just stressed, pine goes head to the tripping plate 19 of lock bolt 18 that appropriate gap is arranged, make 16 oil-feeds of stretch-draw jack be stretched to steel strand 20 again and withdraw from certain-length, after propping up pressing plate 19 with the locating piece 21 of lock bolt 18, can unclamp steel strand 20, at this moment, because the effect of contact bolt 22, intermediate plate 23 unlikely follow-ups, guaranteed that cable loosing can normally carry out, simultaneously the anchoring cell orifice that leaves on the work anchor 1 of intermediate plate 23 has certain distance, does not have the tooth of intermediate plate 23 steel strand 20 situations of biting when steel strand 20 ease out, and can guarantee that steel strand 20 freely ease out.When steel strand 20 adjustment reach requirement, to regulate lock bolt 18 special pressing plate 19 is combined with intermediate plate 23 closely, contact bolt 21 major parts and special pressing plate 19 come to nothing, and intermediate plate 23 follows up synchronously with steel strand 20 when being convenient to 16 oil returns of stretch-draw jack.Give roof pressure jack 13 fuel feeding afterwards and tighten lock bolt 18, make special pressing plate 19 closely connected, finish the work of big displacement coarse adjustment rope in intermediate plate 23 rear ends.
As shown in Figure 4, when dual accent rope low stress intermediate plate anchor system of the present utility model when rope is transferred in the little displacement of needs, before transferring rope, keep special pressing plate 19 to be connected with the tight of intermediate plate 23, lock bolt 18 is in locking state all the time, unclamp the lock(ing) bolt 8 of briquetting 6, the briquetting 6 outer grooves 5 that shift out adjusting nut 4 are fixed.Work anchor 1 integral body is moved for position jack 16 fuel feeding with steel strand 20 are together outer, adjusting nut 4 breaks away from work anchor 1 pressure-bearing backing plate 2, calculate the rotation revolution according to adjusting length and adjusting nut pitch, rotate to the back that meets the requirements and give 16 oil returns of stretch-draw jack, the adjusting nut 4 of work anchor 1 is close on the pressure-bearing backing plate 2, finishes little displacement and transfer rope work.
Embodiment 2:
The aperture of removing through hole 9 is the external diameter+10mm of the round anchor circle 3 of work anchor 1, and outside work anchor 1 was pressed on the pressure-bearing backing plate 2 on the anchorage concrete 12, all the other were all identical with embodiment 1.
Claims (6)
1, a kind of dual accent rope low stress intermediate plate anchor system comprises work anchor (1), it is characterized in that work anchor (1) is pressed on the pressure-bearing backing plate (2) that is connected on steel anchor box floor (11) or the anchorage concrete parados (12).
2, dual accent rope low stress intermediate plate anchor system according to claim 1, there is screw thread on the surface that it is characterized in that the round anchor circle (3) of work anchor (1), the adjusting nut (4) that is engaged with is arranged on it, groove (5) is arranged on the adjusting nut (4), the briquetting (6) that cooperates is with it arranged on the groove (5), groove (7) is arranged on the briquetting (6), be contained in and be fastened on the pressure-bearing backing plate (2) after lock(ing) bolt (8) one ends on the groove (7) pass groove (7), the other end is pressed on the briquetting (6), and adjusting nut (4) is pressed on the pressure-bearing backing plate (2).
3, dual accent rope low stress intermediate plate anchor system according to claim 2 is characterized in that groove (5) is a groove.
4, dual accent rope low stress intermediate plate anchor system according to claim 2 is characterized in that groove (7) is a bar-shaped trough.
5, dual accent rope low stress intermediate plate anchor system according to claim 1 and 2 is characterized in that through hole (9) is arranged on the pressure-bearing backing plate (2), and the back side of pressure-bearing backing plate (2) is fixed with the internal diameter noose pipe (10) identical with through hole (9) internal diameter.
6, dual accent rope low stress intermediate plate anchor system according to claim 5 is characterized in that the aperture of through hole (9) external diameter+(5～10) mm for circle anchor circle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034582 CN2900617Y (en) | 2006-06-13 | 2006-06-13 | Double regulating cable low stress clamp sheet anchoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034582 CN2900617Y (en) | 2006-06-13 | 2006-06-13 | Double regulating cable low stress clamp sheet anchoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900617Y true CN2900617Y (en) | 2007-05-16 |
Family
ID=38084780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620034582 Expired - Lifetime CN2900617Y (en) | 2006-06-13 | 2006-06-13 | Double regulating cable low stress clamp sheet anchoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900617Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400441A (en) * | 2011-11-29 | 2012-04-04 | 中铁三局集团有限公司 | Method for installing and using cable-stayed bridge reinforced concrete cable tower prestressed system |
| CN104060525A (en) * | 2014-06-28 | 2014-09-24 | 江苏省交通科学研究院股份有限公司 | Additional anchoring device for steel strand clip anchor and tensioning tool and installation method for same |
| CN115162195A (en) * | 2022-08-04 | 2022-10-11 | 中铁一局集团(广州)建设工程有限公司 | Internal mold hanging bracket device for prestressed concrete short-tower cable-stayed bridge construction |
-
2006
- 2006-06-13 CN CN 200620034582 patent/CN2900617Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400441A (en) * | 2011-11-29 | 2012-04-04 | 中铁三局集团有限公司 | Method for installing and using cable-stayed bridge reinforced concrete cable tower prestressed system |
| CN104060525A (en) * | 2014-06-28 | 2014-09-24 | 江苏省交通科学研究院股份有限公司 | Additional anchoring device for steel strand clip anchor and tensioning tool and installation method for same |
| CN115162195A (en) * | 2022-08-04 | 2022-10-11 | 中铁一局集团(广州)建设工程有限公司 | Internal mold hanging bracket device for prestressed concrete short-tower cable-stayed bridge construction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070516 |
|
| EXPY | Termination of patent right or utility model |