CN213142807U - Device for adjusting angle of stay cable of front supporting point of guy cable hanging basket - Google Patents
Device for adjusting angle of stay cable of front supporting point of guy cable hanging basket Download PDFInfo
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- CN213142807U CN213142807U CN202021148155.7U CN202021148155U CN213142807U CN 213142807 U CN213142807 U CN 213142807U CN 202021148155 U CN202021148155 U CN 202021148155U CN 213142807 U CN213142807 U CN 213142807U
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Abstract
The utility model belongs to the technical field of cable-stay bridge guy cable hangs basket cantilever construction, specifically a device for adjusting guy cable hangs basket front pivot suspension cable angle. Including support part, lifting unit and stretch-draw locking part, support part install the first top surface of fulcrum arc before the guy cable hangs the basket, lifting unit include longeron, front end fixed pulley, rear end fixed pulley, hoist engine and stretch-draw distribution beam, stretch-draw locking part include stretch-draw connecting piece, spike, lock nut, stretch-draw jack and stretch-draw connecting rod. The utility model provides a lifting device of adjustment guy cable hanging basket front support point cable-stay bridge angle adopts angle adjustment device to make it adjust the construction according to the difference of the angle of the suspension cable not and bridge floor in the construction of hanging the basket, makes the construction avoid because of the tension of the suspension cable that the reason of angle produced is not enough, the inaccurate problem of precision.
Description
Technical Field
The utility model belongs to the technical field of cable-stay bridge guy cable hangs basket cantilever construction, specifically a device for adjusting guy cable hangs basket front pivot suspension cable angle.
Background
The front fulcrum guyed cradle cantilever cast-in-place construction scheme is the common equipment for girder cantilever casting construction of the current large-span concrete structure cable-stayed bridge, the main action principle of the front fulcrum guyed cradle is to anchor the rear end of the cradle in the concrete segment of the poured cantilever segment, the front end is anchored at the arc head of the cradle through a stay cable, the concrete weight of the poured segment is jointly born by the poured beam segment in the stay cable, for the fan-shaped cable of the cable-stayed bridge, the cable angle of each segment of the cable-stayed bridge is different, the hoisting equipment is required to be arranged at the front point of the cradle, the fixed position of the stay cable can be realized, and the angle of the cable guide pipe inclination in the beam can be synchronously and accurately adjusted.
In the design of present string of basket, do not have simple structure temporarily, the adjusting device of convenient adjustment, the site operation needs to utilize tower crane or the supplementary hoist and mount of truck crane to adjust, it is with high costs to have, and information communication is not smooth and easy, the safe risk is big grade shortcoming, this utility model can set up one set of lifting device in arc head department, the angle that can accomplish string basket fore-stock and the anchor head fixed position of suspension cable, the interior cable pipe slope of roof beam is can be synchronous accurate regulation, easy operation, be convenient for ann tears open, advantage with low costs.
Disclosure of Invention
The utility model provides a solve above-mentioned problem, provide a device that is used for adjusting guy cable hanging basket front support point suspension cable angle.
The utility model adopts the following technical proposal: a device for adjusting the angle of a stay cable at a front fulcrum of a guy cable hanging basket comprises a support part, a lifting part and a tensioning locking part, wherein the support part is arranged on the arc-shaped top surface of the front fulcrum of the guy cable hanging basket; the tensioning locking part comprises a tensioning connecting piece, a supporting foot, a locking nut, a tensioning jack and a tensioning connecting rod, the supporting foot is installed on the tensioning distribution beam, the tensioning jack is installed on the supporting foot through the locking nut, the tensioning jack is connected with one end of the tensioning connecting rod, the other end of the tensioning connecting rod is connected with the tensioning connecting piece on the inner side of the front fulcrum arc head of the stay cable hanging basket, and the tensioning connecting piece is installed at the end part of the stay cable body.
Further, the support part comprises support vertical rods, support cross braces, cross rods and longitudinal beam limiting clamping grooves, the support cross braces and the cross rods are connected between the support vertical rods, and the longitudinal beam limiting clamping grooves used for limiting the positions of the longitudinal beams are formed in the cross rods at the tops of the support vertical rods.
Furthermore, a stiffening plate is arranged on the cross rod.
Furthermore, two groups of lifting lugs connected with the ropes are arranged on the outer side of the rope guide pipe.
Compared with the prior art, the utility model provides a lifting device of adjustment guyed basket fore-stock point cable-stay bridge angle, adopt angle adjusting device to make it can adjust the construction according to the difference of the angle of the suspension cable that does not and bridge floor in the construction of hanging the basket, the tension of the suspension cable that makes the construction avoid producing because of the reason of angle is not enough, the precision is inaccurate, and can be easily to the cable pipe through this device, the jack-jack, the adjustment of hoisting is carried out to bulky weight objects such as stretch-draw distribution roof beam and stretch-draw supporting foot, large-scale hoisting equipment has been avoided adopting, and hoist and mount adjustment precision, information communication is more controllable, moreover, the steam generator is simple in structure, therefore, the clothes hanger is strong in practicability, the adjustment cable angle problem of traditional operation has been improved, make fore-stock basket construction accord with actual demand more.
Drawings
FIG. 1 is a side elevational view of the structure of the present invention;
FIG. 2 is a front elevation view of the structure of the present invention;
fig. 3 is a schematic view of the sliding of the longitudinal beam of the present invention;
description of reference numerals: 1. tensioning the distribution beam; 2. a jack arm; 3. tensioning a jack; 4. tensioning the connecting rod; 5. the front fulcrum arc head of the guy cable hanging basket; 6. a front end fixed pulley; 7. hoisting the longitudinal beam; 8. a rear end fixed pulley; 9. erecting a rod; 10. a bracket is used for supporting; 11. a cross bar; 12. lifting the winch; 13. a cable guide tube; 14. a stay cable body; 15. a box girder; 16. a longitudinal beam limiting clamping groove; 17. tensioning the connecting piece; 18. a stiffening plate; 19. lifting lugs; the nut is locked 20.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the device for adjusting the angle of the stay cable of the front pivot point of the guy cable hanging basket comprises a bracket part, a lifting part and a tension locking part, the support part is arranged on the top surface of the arc head 5 of the front fulcrum of the guy cable hanging basket, the lifting part comprises a longitudinal beam 7, a front end fixed pulley 6, a rear end fixed pulley 8, a winch 12 and a tension distribution beam 1, the longitudinal beam 7 is arranged on the upper side of the support part, the front end fixed pulley 6 and the rear end fixed pulley 8 are arranged on the lower sides of the two ends of the longitudinal beam 7, the hoisting machine 12 is arranged on the top surface of the arc-shaped head 5 of the front fulcrum of the guy rope hanging basket and is provided with two hoisting machines, one of the winches 12 is connected with a cable guide pipe 13 through a rope wound on a fixed pulley 8 at the rear end, a stay cable body 14 is arranged in the cable guide pipe 13, and the other winch 12 is connected with a tension distribution beam 1 arranged on the outer side surface of an arc head 5 of a front fulcrum of the stay cable hanging basket through a rope wound on a fixed pulley 6 at the front end; the tensioning locking part comprises a tensioning connecting piece 17, a supporting foot 2, a locking nut 20, a tensioning jack 3 and a tensioning connecting rod 4, the supporting foot 2 is installed on the tensioning distribution beam 1, the tensioning jack 3 is installed on the supporting foot 2 through the locking nut 20, the tensioning jack 3 is connected with one end of the tensioning connecting rod 4, the other end of the tensioning connecting rod 4 is connected with the tensioning connecting piece 17 on the inner side of the arc head 5 of the front fulcrum of the guy cable hanging basket, and the tensioning connecting piece 17 is installed at the end part of a stay cable body 14.
The support part comprises support upright rods 9, support cross braces 10, cross rods 11 and longitudinal beam limiting clamping grooves 16, the support cross braces 10 and the cross rods 11 are connected between the support upright rods 9, and the longitudinal beam limiting clamping grooves 16 used for limiting the positions of the longitudinal beams 7 are arranged on the cross rods 11 at the tops of the support upright rods 9. Stiffening plates 18 are mounted on the cross bar 11.
Two sets of lifting lugs 19 for connection with the ropes are arranged outside the rope guide 13.
Firstly, a support part which is pre-assembled under a bridge is arranged on the top surface of an arc head 5 of a front fulcrum of a guy cable hanging basket and is firmly fixed, then a longitudinal beam 7 which is provided with a front fixed pulley 6 and a rear fixed pulley 8 is arranged in a limiting way by utilizing a limiting clamping groove 16 on the support and is temporarily fixed, the arrangement of the longitudinal beam limiting clamping groove 16 is that in order to facilitate the adjustment of the length of a cantilever of the longitudinal beam caused by the change of the angle of a stay cable, a hoisting winch 12 is arranged on the top surface of the arc head 5 of the front fulcrum of the guy cable hanging basket, a steel wire rope passes through the front fixed pulley 6 and the rear fixed pulley 8, after the support part and the hoisting part are completed, a cable guide pipe 13 and a tensioning part can be arranged, after the angle of the cable guide pipe is roughly adjusted in place by utilizing the rear fixed pulley 8 and the hoisting winch 12, and then the assembled front end tensioning distribution beam 1, a locking nut, The jack 3, the connecting rod piece 4 and the tensioning connecting piece 17 are lowered, installed roughly and positioned, after the stay cable body 14 penetrates through the cable guide pipe 13 and is connected with the tensioning locking part through the tensioning connecting piece 17, the cable guide pipe 13 and the front end tensioning device can be simultaneously and finely adjusted according to the angle of the stay cable, and the adjustment mode can be achieved by adjusting through the front fixed pulley 6, the rear fixed pulley 8 and the winch.
Fig. 3 is a schematic diagram of longitudinal beam slippage, when the construction of the segment is completed, the angle of the fan-shaped stay cable is gradually reduced, the fixed pulley position of the longitudinal beam 7 is adjusted with the cable guide pipe 13 and the hoisting angle of the distribution beam 1, and the longitudinal beam 7 is ensured not to collide with the inclined stay cable 14, the longitudinal beam is arranged to be longitudinally adjustable, the longitudinal limiting is performed by using the limiting clamping groove on the top surface of the bracket, and the temporary welding locking is performed after the limiting.
The utility model discloses an angle adjusting device makes its angle change that can be according to suspension cable and bridge floor in the work progress of hanging the basket and adjusts the construction, and can accomplish the step of fine tuning after the coarse adjustment earlier, the bridge structures harm of having avoided producing suspension cable stretch-draw construction because of the angle and arousing, and this set of device is convenient more to cable pipe, the jack-jack, the large-weight object such as stretch-draw distribution roof beam and stretch-draw spike hoists, the traditional construction method that adopts large-scale hoisting equipment to adjust has been improved, the high altitude hoist and mount risk has been reduced when having reduced construction cost, and improved the efficiency of construction, the device simple structure, therefore, the clothes hanger is strong in practicability, make the construction of hanging the basket accord with actual demand more.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (4)
1. The utility model provides a device for adjusting stay cable angle of pivot before guy cable hangs basket which characterized in that: comprises a bracket part, a lifting part and a tension locking part, wherein the bracket part is arranged on the top surface of an arc-shaped head (5) of a front fulcrum of a guy cable hanging basket, the lifting part comprises a longitudinal beam (7), a front end fixed pulley (6), a rear end fixed pulley (8), a winch (12) and a tension distribution beam (1), the longitudinal beam (7) is arranged on the upper side of the bracket part, the front end fixed pulley (6) and the rear end fixed pulley (8) are arranged on the lower sides of the two ends of the longitudinal beam (7), the two winches (12) are arranged on the top surface of the arc-shaped head (5) of the front fulcrum of the guy rope hanging basket, one winch (12) is connected with a cable guide pipe (13) through a rope wound on a rear end fixed pulley (8), a stay cable body (14) is installed in the cable guide pipe (13), and the other winch (12) is connected with a tensioning distribution beam (1) installed on the outer side surface of a front fulcrum arc head (5) of the guy cable hanging basket through the rope wound on a front end fixed pulley (6); the stretch-draw locking part include stretch-draw connecting piece (17), spike (2), lock nut (20), stretch-draw jack (3) and stretch-draw connecting rod (4), install on stretch-draw distribution beam (1) spike (2), install stretch-draw jack (3) through lock nut (20) on spike (2), stretch-draw jack (3) are connected with the one end of stretch-draw connecting rod (4), stretch-draw connecting rod (4) other end and stretch-draw connecting piece (17) of the first inboard (5) of fulcrum arc before the guy cable hanging basket are connected, stretch-draw connecting piece (17) are installed at stay cable body (14) tip.
2. The device for adjusting the angle of the stay cable at the front fulcrum of the guy cable hanging basket according to claim 1, wherein: the support part comprises support vertical rods (9), support cross braces (10), cross rods (11) and longitudinal beam limiting clamping grooves (16), the support cross braces (10) and the cross rods (11) are connected between the support vertical rods (9), and the longitudinal beam limiting clamping grooves (16) used for limiting the positions of the longitudinal beams (7) are formed in the cross rods (11) at the tops of the support vertical rods (9).
3. The device for adjusting the angle of the stay cable at the front fulcrum of the guy cable hanging basket according to claim 2, wherein: and stiffening plates (18) are arranged on the cross rods (11).
4. The device for adjusting the angle of the stay cable at the front fulcrum of the guy cable hanging basket according to claim 1, wherein: two groups of lifting lugs (19) used for being connected with the ropes are arranged on the outer side of the rope guide pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021148155.7U CN213142807U (en) | 2020-06-19 | 2020-06-19 | Device for adjusting angle of stay cable of front supporting point of guy cable hanging basket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021148155.7U CN213142807U (en) | 2020-06-19 | 2020-06-19 | Device for adjusting angle of stay cable of front supporting point of guy cable hanging basket |
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| CN213142807U true CN213142807U (en) | 2021-05-07 |
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| CN202021148155.7U Active CN213142807U (en) | 2020-06-19 | 2020-06-19 | Device for adjusting angle of stay cable of front supporting point of guy cable hanging basket |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897867A (en) * | 2021-10-12 | 2022-01-07 | 张成瑞 | Method for quickly installing main beam cable guide pipe of short-tower cable-stayed bridge with adjustable precision |
| CN114808734A (en) * | 2022-05-19 | 2022-07-29 | 柳州桂桥缆索有限公司 | Construction method of stay cable front supporting point hanging basket soft and hard connection conversion system |
-
2020
- 2020-06-19 CN CN202021148155.7U patent/CN213142807U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897867A (en) * | 2021-10-12 | 2022-01-07 | 张成瑞 | Method for quickly installing main beam cable guide pipe of short-tower cable-stayed bridge with adjustable precision |
| CN114808734A (en) * | 2022-05-19 | 2022-07-29 | 柳州桂桥缆索有限公司 | Construction method of stay cable front supporting point hanging basket soft and hard connection conversion system |
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