CN212477444U - Positioning device for cable-stayed bridge end cable guide pipe - Google Patents
Positioning device for cable-stayed bridge end cable guide pipe Download PDFInfo
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- CN212477444U CN212477444U CN202020961322.3U CN202020961322U CN212477444U CN 212477444 U CN212477444 U CN 212477444U CN 202020961322 U CN202020961322 U CN 202020961322U CN 212477444 U CN212477444 U CN 212477444U
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Abstract
A positioning device for a cable-stayed bridge end cable guide pipe relates to the technical field of cable-stayed bridges. The utility model discloses a it is big to solve current beam-ends cable pipe locating support and receive external disturbance factor when measuring location and anchor location, influences the problem of cable pipe location installation accuracy. The utility model discloses a first locating rack, second locating rack, adjusting bracket and chain block, first locating rack sets up under cable pipe middle part, and the second locating rack sets up in the anchor head department of cable pipe, and chain block sets up on the second locating rack, and chain block's barb is fixed on the upper end lateral wall of cable pipe anchor head department, and adjusting bracket sets up under cable pipe end. The utility model is used for the location of cable pipe.
Description
Technical Field
The utility model relates to a cable-stay bridge technical field, concretely relates to a positioner that is used for cable-stay bridge beam-ends cable pipe.
Background
The stay cable of the cable-stayed bridge is a link belt which is connected with the tower and the beam of the cable-stayed bridge and is anchored on a cable guide pipe which is embedded in the tower column and the main beam. The stress state of the stay cable can be changed when the axis of the cable guide pipe is inconsistent with the axis of the end of the stay cable, so that the service life of the stay cable is influenced, and the stay cable is extremely unsafe. The positioning support has the main functions of conveniently adjusting the position of the cable guide pipe, finely adjusting the axis position of the cable guide pipe and anchoring the cable guide pipe, and accurately positioning and anchoring the cable guide pipe by combining a three-dimensional coordinate positioning method and a total station in cooperation with measurement.
The existing cable duct positioning bracket is usually placed below a cable duct, and the position of the cable duct is adjusted up and down by using a chain block. The positioning mode has larger external interference factors, the chain block can shake when adjusting the cable guide pipe during measurement and positioning, and the final anchoring position of the cable guide pipe can be influenced by the chain block shaking when anchoring the cable guide pipe after measurement and positioning. The measurement accuracy and the anchoring accuracy of the cable guide pipe are influenced. Based on the deviation of measurement location and anchoring location caused by the structural characteristics of the positioning support structure, aiming at the problem of complaint, the positioning support component with the beam-end cable conduit positioning function is developed to meet the actual requirement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a it is big to solve current beam-ends cable pipe locating support and receive external disturbance factor when measuring location and anchor location, influences the problem of cable pipe location installation accuracy, and then provides a positioner that is used for cable-stay bridge beam-ends cable pipe.
The utility model discloses a solve the technical scheme that above-mentioned technical problem took and be:
the utility model provides a positioner for cable-stay bridge end cable pipe includes first locating rack, second locating rack, regulation bracket and chain block, and first locating rack sets up under cable pipe middle part, and the second locating rack sets up the anchor head department at cable pipe, and chain block sets up on the second locating rack, and chain block's barb is fixed on the upper end lateral wall of cable pipe anchor head department, and the regulation bracket sets up under cable pipe end.
Compared with the prior art, the utility model the beneficial effect who contains is:
the utility model discloses a chain block and adjusting bracket can finely tune cable pipe position, and after accurate positioning cable pipe position, ensure that the cable pipe position does not change under adjusting bracket's support, through adjusting bracket's supporting role, be convenient for cable pipe and cuboid strength nature skeleton joint, guarantee that cable pipe does not change with strength nature skeleton joint in-process position. The repacking of being convenient for of adjusting the bracket, the material is common, and low cost to circulated use, simultaneously the utility model discloses simple structure all is formed by common general part combination, and it is convenient to dismantle moreover, and reuse rate is high, and save material and cost have guaranteed that the cable pipe is not disturbed by external factor when measuring location and anchor location, can effectively improve the accuracy of cable pipe location and anchor location.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a front view of the first positioning frame 1 of the present invention;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a top view of FIG. 2;
fig. 5 is a front view of the second positioning frame 2 of the present invention;
FIG. 6 is a left side view of FIG. 5;
FIG. 7 is a top view of FIG. 5;
fig. 8 is a front view of the adjusting bracket 3 of the present invention;
fig. 9 is a front sectional view of the adjusting mechanism of the present invention.
Detailed Description
The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 9, and the positioning device for a cable-stayed bridge end cable guide according to the present embodiment includes a first positioning frame 1, a second positioning frame 2, an adjusting bracket 3 and a chain block 4, where the first positioning frame 1 is disposed right below the middle of the cable guide 5, the second positioning frame 2 is disposed at the anchor head of the cable guide 5, the chain block 4 is disposed on the second positioning frame 2, the barb of the chain block 4 is fixed on the outer side wall of the upper end of the anchor head of the cable guide 5, and the adjusting bracket 3 is disposed right below the end of the cable guide 5.
In the embodiment, the first positioning frame 1 and the second positioning frame 2 are both made of angle steel through welding.
The second embodiment is as follows: the embodiment is described with reference to fig. 1 and fig. 8 to 9, in the embodiment, the adjusting bracket 3 includes a U-shaped top support 3-1 and two adjusting mechanisms, a concave surface of the U-shaped top support 3-1 is disposed upward, the two adjusting mechanisms are symmetrically and fixedly connected to a lower end of the U-shaped top support 3-1, and a bottom foot 3-7 is fixedly connected to a lower end of each adjusting mechanism. Other components and connection modes are the same as those of the first embodiment.
The design realizes the adjustment of the height and the angle of the U-shaped jacking 3-1 through the adjustment of the two adjusting mechanisms, thereby realizing the adjustment of the position of the cable guide pipe 5.
The third concrete implementation mode: the embodiment is described with reference to fig. 1 and fig. 8 to 9, and the two adjusting mechanisms of the embodiment are disposed in an inclined manner from top to bottom. Other components and connection modes are the same as those of the second embodiment.
The design is carried out so as to realize effective support of the U-shaped jacking 3-1.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 and 8 to 9, the adjusting mechanism of the embodiment includes a support tube 3-2, an upper screw rod 3-3, an upper adjusting nut 3-4, a lower screw rod 3-5 and a lower adjusting nut 3-6, the upper adjusting nut 3-4 is disposed on the upper end surface of the support tube 3-2 and is rotatably connected with the support tube 3-2, the upper portion of the upper screw rod 3-3 is provided with external threads and is screwed on the inner side of the upper adjusting nut 3-4, an upper guide sleeve 3-8 is fixedly connected on the inner side wall of the upper portion of the support tube 3-2, the lower portion of the upper screw rod 3-3 is a polish rod and is inserted on the inner side of the upper guide sleeve 3-8, the lower adjusting nut 3-6 is disposed on the lower end surface of the support tube 3-2 and is rotatably connected with the support tube, the lower part of the lower screw rod 3-5 is provided with external threads and is screwed on the inner side of the lower adjusting nut 3-6, the inner side wall of the lower part of the supporting tube 3-2 is fixedly connected with a lower guide sleeve 3-9, the upper part of the lower screw rod 3-5 is a polished rod and is inserted in the inner side of the lower guide sleeve 3-9, and the top end of the upper screw rod 3-3 is fixedly connected with the lower end surface of the U-shaped jacking 3-1. Other components and connection modes are the same as those of the second embodiment or the third embodiment.
The inner thread of the upper adjusting nut 3-4 is matched with the outer thread of the upper screw rod 3-3, the inner thread of the lower adjusting nut 3-6 is matched with the outer thread of the lower screw rod 3-5, when adjustment is carried out, the upper adjusting nut 3-4 and the lower adjusting nut 3-6 are rotated to realize the extension and contraction of the upper screw rod 3-3 and the lower screw rod 3-5, the length of the upper screw rod 3-3 and the lower screw rod 3-5 exposed out of the supporting tube 3-2 is further adjusted, the upper guide sleeve 3-8 is sleeved on the polished rod part of the upper screw rod 3-3, the lower guide sleeve 3-9 is sleeved on the polished rod part of the lower screw rod 3-5, and the guiding and limiting effects of the two screw rods are realized through the arrangement of the two guide sleeves.
In the present embodiment, the support tube 3-2 is a steel tube having a length of 3.78m and an outer diameter of 480 mm.
The fifth concrete implementation mode: the embodiment is described with reference to fig. 1 and 8 to 9, in the embodiment, the outer side walls of the upper and lower ends of the support tube 3-2 are provided with flanges 3-10 along the circumferential direction, the lower end surface of the upper adjusting nut 3-4 is fixedly connected with an upper connecting sleeve 3-11, the upper connecting sleeve 3-11 is sleeved on the upper end of the support tube 3-2, the inner side wall of the upper connecting sleeve 3-11 is provided with an upper annular groove 3-12 along the circumferential direction, the flange 3-10 at the upper end is clamped in the upper annular groove 3-12, the upper end surface of the lower adjusting nut 3-6 is fixedly connected with a lower connecting sleeve 3-13, the lower connecting sleeve 3-13 is sleeved on the lower end of the support tube 3-2, the inner side wall of the lower connecting sleeve 3-13 is provided with a lower annular groove 3-14 along the circumferential direction, and the flange. The other components and the connection mode are the same as those of the fourth embodiment.
So designed as to achieve relative rotation between the two adjusting nuts and the support tube 3-2 without relative movement.
The sixth specific implementation mode: referring to fig. 1 and 8 to 9, the upper ring grooves 3 to 12 are formed on the upper end surface of the upper connecting sleeves 3 to 11, and the lower ring grooves 3 to 14 are formed on the lower end surface of the lower connecting sleeves 3 to 13. The other components and the connection mode are the same as the fifth embodiment mode.
The design is convenient for realizing the processing of the ring groove and the installation of the flanges 3-10, so that the processing and the installation process are simpler and more convenient.
The seventh embodiment: the embodiment is described with reference to fig. 1 and 8, the bottom feet 3-7 in the embodiment are horizontal support plates, the lower end of the adjusting mechanism is fixedly connected to the middle of the upper end surfaces of the bottom feet 3-7, and a plurality of anchoring holes are uniformly distributed on the bottom feet 3-7 along the outer sides of the adjusting mechanism. Other components and connection modes are the same as those of the second embodiment.
After the position of the adjusting bracket 3 is set, the position of the adjusting bracket 3 is fixed through the feet 3-7. The bottom feet 3-7 are anchored on the template, the template is a wood template and can be fixed at the anchoring holes through steel nails.
The specific implementation mode is eight: the embodiment is described with reference to fig. 1 to 4, the first positioning frame 1 of the embodiment includes an underframe 1-1, four support rods 1-2, a first support rod 1-3 and a second support rod 1-4, the underframe 1-1 is a horizontally disposed rectangular frame, four corners of an upper end surface of the underframe 1-1 are respectively and vertically fixed with one support rod 1-2, wherein the upper part between the two supporting rods 1-2 is vertically and fixedly connected with a first supporting rod 1-3, the upper part between the other two support rods 1-2 is vertically and fixedly connected with a second support rod 1-4, the first support rod 1-3 is arranged at one side close to the anchor head of the cable guide pipe 5, the height of the first support rod 1-3 is lower than that of the second support rod 1-4, and the lower part between every two adjacent support rods 1-2 is vertically and fixedly connected with a reinforcing rod 1-5. Other components and connection modes are the same as those of the first embodiment, the second embodiment, the third embodiment, the fifth embodiment, the sixth embodiment or the seventh embodiment.
The first supporting rod 1-3 and the second supporting rod 1-4 are designed to effectively support the middle of the cable guide pipe 5, and the height of the first supporting rod 1-3 is lower than that of the second supporting rod 1-4 so as to meet the use requirement that the cable guide pipe 5 is low on the anchor head side and high on the end head side.
The specific implementation method nine: the embodiment is described with reference to fig. 1 and fig. 5 to 7, in the embodiment, the second positioning frame 2 includes a support frame 2-1 and a fixing frame 2-2, the support frame 2-1 and the fixing frame 2-2 are both rectangular frames, the support frame 2-1 is horizontally disposed, the fixing frame 2-2 is vertically and fixedly connected to the middle of the upper end surface of the support frame 2-1, a hook of the chain block 4 is hung on the upper end beam of the fixing frame 2-2, and diagonal braces 2-3 are symmetrically and fixedly connected between the middle of the fixing frame 2-2 and the two sides of the support frame 2-1. The other components and connection modes are the same as those of the eighth embodiment.
So designed to realize the effective location of chain block 4. During positioning, the anchor head end of the cable guide pipe 5 obliquely penetrates through the inner sides of the fixed frame 2-2 and the support frame 2-1, and the positions of each frame of the support frame 2-1 and the fixed frame 2-2 are adjusted according to actual conditions so as to prevent interference with the cable guide pipe 5.
The detailed implementation mode is ten: the embodiment is described with reference to fig. 1, the outer side wall of the upper end of the anchor head of the cable guide 5 of the embodiment is fixedly connected with an ear plate 5-1, the middle part of the ear plate 5-1 is provided with a through hole 5-2, and the barb of the chain block 4 is hung on the through hole 5-2 of the ear plate 5-1. Other components and connection modes are the same as those of the first embodiment, the second embodiment, the third embodiment, the fifth embodiment, the sixth embodiment, the seventh embodiment or the ninth embodiment.
The design is convenient for realizing the connection between the chain block 4 and the cable guide pipe 5. In this embodiment, the ear plate 5-1 is a steel plate 20cm × 10cm, and is welded to the cable guide 4, and the diameter of the through hole 5-2 is 4 cm.
Principle of operation
During positioning, the position of the ear plate 5-1 is adjusted through the chain block 4, the position of the U-shaped jacking 3-1 is adjusted through the adjusting bracket 3, so that fine adjustment of the position of the cable guide pipe 5 is realized, and after the position of the cable guide pipe 5 is accurately positioned, the cable guide pipe 5 is ensured not to change under the support of the adjusting bracket 3.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (10)
1. The utility model provides a positioner that is used for cable-stay bridge roof beam-end cable pipe which characterized in that: the utility model provides a positioner for cable-stay bridge roof beam end cable pipe includes first locating rack (1), second locating rack (2), adjusting bracket (3) and chain block (4), first locating rack (1) sets up under cable pipe (5) middle part, second locating rack (2) set up the anchor head department at cable pipe (5), chain block (4) set up on second locating rack (2), the barb of chain block (4) is fixed on the upper end lateral wall of cable pipe (5) anchor head department, adjusting bracket (3) set up under cable pipe (5) end.
2. The positioning device for the cable-stayed bridge end cable guide pipe according to claim 1, characterized in that: the adjusting bracket (3) comprises a U-shaped top support (3-1) and two adjusting mechanisms, the concave surface of the U-shaped top support (3-1) is arranged upwards, the two adjusting mechanisms are symmetrically and fixedly connected to the lower end of the U-shaped top support (3-1), and the lower end of each adjusting mechanism is fixedly connected with a bottom foot (3-7).
3. The positioning device for the cable-stayed bridge end cable guide pipe according to claim 2, characterized in that: two adjustment mechanism from top to bottom lean out the setting.
4. A positioning device for an end cable guide of a cable-stayed bridge according to claim 2 or 3, characterized in that: the adjusting mechanism comprises a supporting pipe (3-2), an upper screw rod (3-3), an upper adjusting nut (3-4), a lower screw rod (3-5) and a lower adjusting nut (3-6), wherein the upper adjusting nut (3-4) is arranged on the upper end surface of the supporting pipe (3-2) and is rotationally connected with the supporting pipe (3-2), the upper part of the upper screw rod (3-3) is provided with external threads and is screwed on the inner side of the upper adjusting nut (3-4), an upper guide sleeve (3-8) is fixedly connected on the inner side wall of the upper part of the supporting pipe (3-2), the lower part of the upper screw rod (3-3) is a polished rod and is inserted in the inner side of an upper guide sleeve (3-8), the lower adjusting nut (3-6) is arranged on the lower end surface of the supporting pipe (3-2) and is rotationally connected with the supporting pipe (3-2, the lower part of the lower screw rod (3-5) is provided with external threads and is screwed on the inner side of the lower adjusting nut (3-6), the inner side wall of the lower part of the supporting tube (3-2) is fixedly connected with a lower guide sleeve (3-9), the upper part of the lower screw rod (3-5) is a polished rod and is inserted in the inner side of the lower guide sleeve (3-9), and the top end of the upper screw rod (3-3) is fixedly connected with the lower end face of the U-shaped jacking (3-1).
5. The positioning device for the cable-stayed bridge end cable guide pipe according to claim 4, characterized in that: the outer side walls of the upper end and the lower end of the support pipe (3-2) are provided with flanges (3-10) along the circumferential direction, the lower end face of the upper adjusting nut (3-4) is fixedly connected with an upper connecting sleeve (3-11), the upper connecting sleeve (3-11) is sleeved at the upper end of the support pipe (3-2), the inner side wall of the upper connecting sleeve (3-11) is provided with an upper annular groove (3-12) along the circumferential direction, the flange (3-10) at the upper end is clamped in the upper annular groove (3-12), the upper end face of the lower adjusting nut (3-6) is fixedly connected with a lower connecting sleeve (3-13), the lower connecting sleeve (3-13) is sleeved at the lower end of the support pipe (3-2), the inner side wall of the lower connecting sleeve (3-13) is provided with a lower annular groove (3-14) along the circumferential direction, and the flange (3-.
6. The positioning device for the cable-stayed bridge end cable guide pipe according to claim 5, characterized in that: the upper ring grooves (3-12) are arranged on the upper end face of the upper connecting sleeve (3-11), and the lower ring grooves (3-14) are arranged on the lower end face of the lower connecting sleeve (3-13).
7. The positioning device for the cable-stayed bridge end cable guide pipe according to claim 2, characterized in that: the bottom feet (3-7) are horizontal supporting plates, the lower ends of the adjusting mechanisms are fixedly connected to the middle parts of the upper end surfaces of the bottom feet (3-7), and a plurality of anchoring holes are uniformly distributed in the upper edges of the bottom feet (3-7) along the outer sides of the adjusting mechanisms.
8. A positioning device for cable-stayed bridge end cable guide according to claim 1, 2, 3, 5, 6 or 7, characterized in that: the first positioning frame (1) comprises an underframe (1-1), four supporting rods (1-2), a first supporting rod (1-3) and a second supporting rod (1-4), the underframe (1-1) is a horizontally arranged rectangular frame, four corners of the upper end surface of the underframe (1-1) are respectively and vertically fixedly connected with one supporting rod (1-2), wherein a first supporting rod (1-3) is vertically and fixedly connected at the upper part between the two supporting rods (1-2), a second supporting rod (1-4) is vertically and fixedly connected to the upper part between the other two supporting rods (1-2), the first supporting rod (1-3) is arranged on one side close to the anchor head of the cable guide pipe (5), the height of the first supporting rod (1-3) is lower than that of the second supporting rod (1-4), and a reinforcing rod (1-5) is vertically and fixedly connected to the lower part between every two adjacent supporting rods (1-2).
9. The positioning device for the cable-stayed bridge end cable guide pipe according to claim 8, characterized in that: the second positioning frame (2) comprises a supporting frame (2-1) and a fixing frame (2-2), the supporting frame (2-1) and the fixing frame (2-2) are rectangular frames, the supporting frame (2-1) is horizontally arranged, the fixing frame (2-2) is vertically and fixedly connected to the middle of the upper end face of the supporting frame (2-1), a hook of the chain block (4) is hung on an upper end cross beam of the fixing frame (2-2), and diagonal ribs (2-3) are symmetrically and fixedly connected between the middle of the fixing frame (2-2) and two sides of the supporting frame (2-1).
10. A positioning device for cable-stayed bridge end cable guide according to claim 1, 2, 3, 5, 6, 7 or 9, characterized in that: an ear plate (5-1) is fixedly connected to the outer side wall of the upper end of the anchor head of the cable guide pipe (5), a through hole (5-2) is formed in the middle of the ear plate (5-1), and a barb of the chain block (4) is hung on the through hole (5-2) of the ear plate (5-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020961322.3U CN212477444U (en) | 2020-05-29 | 2020-05-29 | Positioning device for cable-stayed bridge end cable guide pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020961322.3U CN212477444U (en) | 2020-05-29 | 2020-05-29 | Positioning device for cable-stayed bridge end cable guide pipe |
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| CN212477444U true CN212477444U (en) | 2021-02-05 |
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| CN202020961322.3U Active CN212477444U (en) | 2020-05-29 | 2020-05-29 | Positioning device for cable-stayed bridge end cable guide pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045190A (en) * | 2022-06-01 | 2022-09-13 | 中冶天工集团有限公司 | Steel anchor box mounting mechanism and mounting method |
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2020
- 2020-05-29 CN CN202020961322.3U patent/CN212477444U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045190A (en) * | 2022-06-01 | 2022-09-13 | 中冶天工集团有限公司 | Steel anchor box mounting mechanism and mounting method |
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