CN111379227A - Variable-width platform device for hydraulic creeping formwork for quickly constructing double-limb cable tower and construction method - Google Patents
Variable-width platform device for hydraulic creeping formwork for quickly constructing double-limb cable tower and construction method Download PDFInfo
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- CN111379227A CN111379227A CN202010307764.0A CN202010307764A CN111379227A CN 111379227 A CN111379227 A CN 111379227A CN 202010307764 A CN202010307764 A CN 202010307764A CN 111379227 A CN111379227 A CN 111379227A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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Abstract
The invention provides a widening platform device of a hydraulic creeping formwork for quickly constructing a double-limb cable tower and a construction method thereof. The device is specially used for large-scale construction platform devices under the conditions that the operation space of the hydraulic creeping formwork on the inner side of a cable tower column is insufficient, the hydraulic creeping formwork has no steel bar binding platform or the platform is insufficient to ensure the safety of steel bar binding and the like.
Description
Technical Field
The invention relates to a variable-width platform device and a construction method of a hydraulic creeping formwork for quickly constructing a double-limb cable tower, and belongs to the field of bridge construction devices.
Background
At present, the construction of bridge high mound cable towers generally adopts hydraulic creeping formwork to carry out the construction, when the cable tower is two limbs, the distance between the pylon becomes big or diminishes, the template generally adopts the mode of hydraulic creeping formwork cooperation external hanging arm type platform, reinforcement platform adopts interim platform, the safe risk is high, the period of construction is long, the efficiency is not high.
Disclosure of Invention
The invention aims to provide a widened platform device of a hydraulic creeping formwork for quickly constructing a double-limb cable tower and a construction method, and the widened platform device is specially used for a large-scale construction platform device under the conditions that the operation space of the hydraulic creeping formwork at the inner side of a tower column of the cable tower is insufficient, the hydraulic creeping formwork is not provided with a steel bar binding platform or the platform is not enough to ensure the safety of steel bar binding and the like.
In order to achieve the technical features, the invention is realized as follows: the utility model provides a widen platform device of hydraulic climbing formwork of quick construction double limb cable tower, it is including burying the piece, it goes up fixed mounting and attaches the wall device to bury, fixed mounting has vertical guide rail on attaching the lateral wall of wall device, install hydraulic climbing formwork device on the vertical guide rail, hydraulic climbing formwork device's top fixed mounting has operation platform, operation platform's top is passed through the transverse sliding device and is installed the template system, the template system that passes through interval adjusting device and double limb column opposite side links to each other on the column of template system place one side.
Install oblique strutting arrangement between operation platform and the hydraulic pressure creeping formwork system, oblique strutting arrangement includes the double thread sleeve, the telescopic both ends of double thread link to each other through the screw-thread fit in the screw rod that articulates on operation platform and hydraulic pressure creeping formwork system respectively.
The hydraulic climbing formwork device is characterized in that a steel bar binding platform is fixedly mounted at the top of the hydraulic climbing formwork device, the steel bar binding platform is of a polygonal hollow framework structure, and a steel wire mesh is arranged outside the polygonal hollow framework structure.
The template system is supported at the top of the operating platform through a traversing device, and the traversing device adopts a track wheel mechanism.
The distance adjusting device comprises a double-V linkage device and a plurality of groups of pin hole arrangement sliding rod mechanisms, two ends of the double-V linkage device are respectively hinged and connected with two sides of the double-limb tower column, one end of each pin hole arrangement sliding rod mechanism is hinged on the tower column, and the other end of each pin hole arrangement sliding rod mechanism is connected with a template system on the other side of the double-limb tower column through a pin shaft.
The pin hole arrangement sliding rod mechanism comprises a pin hole rod hinged to the tower column, a plurality of pin holes arranged side by side are machined in the pin hole rod, and the pin holes are connected with a pin rod sliding groove fixed on the tower column on the other side in a plug-in fit mode through bolts.
The double-V linkage device comprises a double-end T-shaped rod, wherein two ends of the double-end T-shaped rod are respectively hinged with a first connecting rod and a second connecting rod, the other end of the first connecting rod positioned on the same side is hinged on one of the tower columns of the double-limb tower columns, and the other end of the second connecting rod positioned on the same side is hinged on the other tower column of the double-limb tower column.
A plurality of suspension bridge devices used for communicating the two tower columns are installed between the two tower columns of the double-limb tower column and comprise bridge plates, one ends of the bridge plates are hinged to the tower column on one side through hinge lug plates, the tops of the other ends of the bridge plates are connected with suspension bridge cables through stay rope lifting lugs, and the other ends of the suspension bridge cables are connected to the tower columns.
The steel bar binding platform is an octagonal hollowed-out steel bar binding platform.
The method for constructing the double-limb cable tower by the variable-width platform device of the hydraulic creeping formwork of the quick construction double-limb cable tower comprises the following steps:
firstly, fixedly mounting a wall attachment device on an embedded part on a poured cable tower, mounting a vertical guide rail on the wall attachment device, and sliding and matching the vertical guide rail with a hydraulic climbing formwork device;
secondly, supporting and installing a steel bar binding platform at the top of the hydraulic climbing formwork device positioned on the outer side of the cable tower, supporting and installing a template system at the top of the hydraulic climbing formwork device positioned on the inner side of the cable tower, and connecting the other end of the tower column where the template system is positioned with the tower column of the cable tower on the other side through a double-V linkage device and a plurality of groups of pin hole sliding rod arranging mechanisms;
thirdly, adjusting the extension length of the pin hole arrangement sliding rod mechanism according to the distance between cable towers of the double-limb tower column to ensure that the template systems on the two sides can be respectively matched with the distance between the cable towers to be poured on the two sides, and then locking the bolts to realize the fixation of the template systems on the two sides;
step four, after the formwork systems on the two sides are fixed, putting down the suspension bridge device, further communicating the tower columns on the two sides, and pouring the cable tower on the pouring layer;
after the pouring of the pouring layer is finished, the tower columns on the two sides are adjusted to be close to the middle part of the cable tower through the transverse moving device and the pin hole arrangement sliding rod mechanism and the double-V linkage device in a matching mode, so that the cable tower is suitable for the double-limb cable tower with the reduced upper space;
and step six, repeating the step two to the step five to complete the pouring construction of the next pouring layer of the cable tower until the pouring of the whole cable tower is completed.
The invention has the following beneficial effects:
1. aiming at the traditional reinforcement binding, a platform is erected by using a strength-shaped framework of a tower column, and the binding is slow. The octagonal hollow reinforcement binding platform is adopted, so that the octagonal hollow reinforcement binding platform is light in weight, small in wind resistance and convenient for operation personnel to pass through, a safe and reliable reinforcement binding environment can be provided, repeated erection of a temporary operation platform is avoided, the construction period is shortened, and reinforcement binding construction is efficient.
2. By adopting the combination of the pin hole arrangement sliding rod mechanism and the double-V linkage device, the stability of the platform is improved, and meanwhile, the platform can adapt to the change of the distance between the cable towers, so that the distance between the two towers can be conveniently adjusted, the problems that the requirement on the inner side distance of the cable tower is changed, the hydraulic climbing operation space is insufficient, and the two tower columns cannot be symmetrically constructed at the same time are solved, and the problem that the linear shape of the tower column is poor due to the application of asymmetric load on the cable tower is prevented.
3. By adding the suspension bridge device, the width of the operation platform is increased, the platform is connected into a whole, the up-and-down running of operators is reduced, and the working efficiency of the operators is improved.
4. By adopting the transverse moving device, the transverse position of the template system on one side can be adjusted, and the requirement for changing the distance between the two-limb cable towers is met.
Drawings
The invention is further illustrated by the following figures and examples.
FIG. 1 is an overall elevational view of the present invention.
Figure 2 is a front view of the rebar tying platform of the present invention.
FIG. 3 is a front view of the pin row hole slide bar mechanism of the present invention.
FIG. 4 is a front view of the double V linkage of the present invention.
Fig. 5 is a front view of the drawbridge apparatus of the present invention.
In the figure: the system comprises a reinforcement binding platform 1, a pin hole arrangement sliding rod mechanism 2, a double-V linkage device 3, a suspension bridge device 4, a template system 5, an embedded part 6, an inclined support device 7, a transverse moving device 8, an operation platform 9, a wall attachment device 10, a vertical guide rail 11, a bottom platform 12, a hydraulic climbing formwork device 13, a tower column 14 and a cable tower 15;
a pin hole rod 201, a pin hole 202 and a pin rod chute 203;
a first connecting rod 301, a double-end T-shaped rod 302 and a second connecting rod 303;
an articulating ear plate 401, a bridge plate 402, a suspension bridge cable 403, and a pull rope ear 404.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
referring to fig. 1-5, a widening platform device of a hydraulic climbing formwork for quickly constructing a double-limb cable tower comprises an embedded part 6, wherein a wall attaching device 10 is fixedly installed on the embedded part 6, a vertical guide rail 11 is fixedly installed on the outer side wall of the wall attaching device 10, a hydraulic climbing formwork device 13 is installed on the vertical guide rail 11, an operating platform 9 is fixedly installed at the top of the hydraulic climbing formwork device 13, a formwork system 5 is installed at the top of the operating platform 9 through a transverse sliding device 8, and a tower column 14 on one side of the formwork system 5 is connected with a formwork system on the other side of the double-limb tower column through a distance adjusting device. The widening platform device with the structure can be used for pouring construction of the double-limb cable tower, and in the specific construction process, the octagonal hollow reinforcement binding platform is arranged, so that the problems that no reinforcement binding platform exists or the reinforcement platform is insufficient to ensure the safety of reinforcement binding operation during hydraulic climbing formwork construction and the like are solved; through set up interval adjusting device on hydraulic climbing mould, realized the transformation of conventional hydraulic climbing mould, solved the requirement of the inboard distance change of cable tower pylon, hydraulic climbing mould operating space is not enough, the unable problem of two limbs pylon of symmetry construction simultaneously, prevents to apply asymmetric load on cable tower and leads to the pylon line shape poor.
Further, install diagonal bracing device 7 between operation platform 9 and the hydraulic pressure creeping formwork system 13, diagonal bracing device 7 includes double thread sleeve 7, the both ends of double thread sleeve 7 link to each other through screw-thread fit in the screw rod that articulates on operation platform 9 and hydraulic pressure creeping formwork system 13 respectively. The inclined support device 7 enhances the stability and reliability of the support between the operating platform 9 and the hydraulic climbing formwork system 13, thereby ensuring the safety of the whole platform construction.
Further, the top fixed mounting of hydraulic pressure creeping formwork device 13 has reinforcement platform 1, reinforcement platform 1 adopts polygon fretwork skeleton texture, is provided with the wire net in polygon fretwork skeleton texture's outside. Through the 1 its can be for when hydraulic pressure creeping formwork construction of reinforcement platform through above-mentioned structure, provide reinforcement's platform to guarantee the security problem of reinforcement operation. In addition, the steel wire mesh is hollow on four sides, so that the high-altitude wind resistance is reduced, and the shaking caused by heightening of the hydraulic creeping formwork is avoided; the chamfer down tube is additionally arranged at the vertical rod of the main truss of the platform and is set into an octagonal pattern, so that the bearing capacity of the platform is guaranteed, and meanwhile, the operation personnel can conveniently pass.
Further, the formwork system 5 is supported on top of the operation platform 9 by a traverse device 8, and the traverse device 8 adopts a rail wheel mechanism. The traversing device 8 can be used for adjusting the installation position of the template system 5 so as to adapt to the change of the tower column spacing.
Further, the distance adjusting device comprises a double-V linkage device 3 and a plurality of groups of pin hole arrangement sliding rod mechanisms 2, two ends of the double-V linkage device 3 are hinged to two sides of the double-limb tower column respectively, one end of each pin hole arrangement sliding rod mechanism 2 is hinged to the tower column 14, and the other end of each pin hole arrangement sliding rod mechanism is connected with a template system on the other side of the double-limb tower column through a pin shaft. Can be used for adjusting the interval between two pylons through foretell interval adjusting device, and then solved the inboard distance of cable tower pylon and required the change, hydraulic pressure creeping formwork operating space is not enough, the problem of two limbs of pylons of unable symmetry construction simultaneously, prevents to apply asymmetric load on cable tower and leads to the pylon line shape poor.
Further, the pin hole arrangement sliding rod mechanism 2 comprises a pin hole rod 201 hinged on the tower column 14, a plurality of pin holes 202 arranged side by side are processed on the pin hole rod 201, and the pin holes 202 are connected with a pin rod sliding groove 203 fixed on the tower column on the other side in a plug-in fit mode through bolts. Through foretell row pinhole slide bar mechanism 2, can be used for the regulation of interval, in the concrete course of operation, through adjusting the position of pinhole pole 201 on pin rod spout 203, and then change its interval, after the regulation is accomplished, adopt the bolt again to lock both.
Further, the double-V linkage 3 comprises a double-head T-shaped rod 302, two ends of the double-head T-shaped rod 302 are respectively hinged with a first connecting rod 301 and a second connecting rod 303, the other end of the first connecting rod 301 positioned on the same side is hinged on one tower column 14 of the double-limb tower column, and the other end of the second connecting rod 303 positioned on the same side is hinged on the other tower column 14 of the double-limb tower column. Through foretell two V aggregate unit 3 can adapt to the change of both intervals, through adopting the bearing diagonal moreover, strengthened joint strength and stability between them.
Further, a plurality of suspension bridge devices 4 for communicating the two tower columns 14 of the double-limb tower column are installed between the two tower columns 14, each suspension bridge device 4 comprises a bridge plate 402, one end of each bridge plate 402 is hinged and connected with the tower column 14 on one side through a hinge lug plate 401, the top of the other end of each bridge plate 402 is connected with a suspension bridge cable 403 through a pull rope lifting lug 404, and the other end of each suspension bridge cable 403 is connected to the tower column 14. The tower columns on two sides can be communicated through the suspension bridge device 4, and then a communicated operation platform is formed.
Further, the steel bar binding platform 1 is an octagonal hollow steel bar binding platform.
Example 2:
the method for constructing the double-limb cable tower by the variable-width platform device of the hydraulic creeping formwork of the quick construction double-limb cable tower comprises the following steps:
firstly, fixedly installing a wall attachment device 10 on an embedded part 6 on a poured cable tower 15, installing a vertical guide rail 11 on the wall attachment device 10, and sliding and matching a hydraulic climbing formwork device 13 on the vertical guide rail 11;
secondly, supporting and installing a steel bar binding platform 1 at the top of a hydraulic climbing formwork device 13 positioned on the outer side of a cable tower 15, supporting and installing a template system 5 at the top of the hydraulic climbing formwork device 13 positioned on the inner side of the cable tower 15, and connecting the other end of a tower column 14 where the template system 5 is positioned with the tower column 14 of the cable tower 15 on the other side through a double-V linkage device 3 and a plurality of groups of pin hole sliding rod mechanisms 2;
thirdly, adjusting the extension length of the pin hole arrangement sliding rod mechanism 2 according to the distance between the cable towers 15 of the double-limb tower column, so that the template systems 5 on the two sides can be respectively matched with the distance between the cable towers 15 to be poured on the two sides, and then locking the bolts to fix the template systems 5 on the two sides;
step four, after the formwork systems 5 on the two sides are fixed, the suspension bridge device 4 is put down, the tower columns 14 on the two sides are communicated, and the cable tower 15 on the pouring layer is poured;
after the pouring of the pouring layer is finished, the tower columns 14 on the two sides are adjusted and closed to the middle part of the cable tower 15 through the transverse moving device 8 in cooperation with the pin hole arrangement sliding rod mechanism 2 and the double-V linkage device 3 so as to adapt to the double-limb cable tower with the reduced upper space;
and step six, repeating the step two to the step five to complete the pouring construction of the next pouring layer of the cable tower 15 until the pouring of the whole cable tower 15 is completed.
The working principle of the invention is as follows:
1. set up the wire net through the upper mounting plate at hydraulic climbing mould device 13 and set up and form octagon fretwork reinforcement platform, solved hydraulic climbing mould construction time do not have reinforcement platform or reinforcement platform and be not enough to guarantee reinforcement operation safety scheduling problem.
2. Through set up row pinhole slide bar mechanism 2, two V aggregate unit 3 on hydraulic creeping formwork, get up two limb column creeping formwork platforms, the creeping formwork interval is changing, row pinhole slide bar mechanism 2 slides and targets in place the back bolt locking, increases hydraulic creeping formwork's stability.
3. The suspension bridge device 4 is arranged in the middle, so that double-limb tower column personnel can conveniently pass through the suspension bridge device, and the operation platform is integrated.
Claims (10)
1. The utility model provides a widen platform device of hydraulic climbing formwork of quick construction double limb cable tower which characterized in that: it is including burying piece (6), it has attaches wall device (10) to bury fixed mounting on piece (6), fixed mounting has vertical guide rail (11) on the lateral wall of attaching wall device (10), install hydraulic pressure creeping formwork device (13) on vertical guide rail (11), the top fixed mounting of hydraulic pressure creeping formwork device (13) has operation platform (9), formwork system (5) are installed through horizontal sliding device (8) in the top of operation platform (9), it links to each other with the formwork system of bipinn pylon opposite side through interval adjusting device on pylon (14) of one side of formwork system (5) place.
2. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: install diagonal bracing device (7) between operation platform (9) and hydraulic pressure creeping formwork system (13), diagonal bracing device (7) include double thread sleeve (7), the both ends of double thread sleeve (7) link to each other through the screw-thread fit in the screw rod that articulates on operation platform (9) and hydraulic pressure creeping formwork system (13) respectively.
3. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: the hydraulic climbing formwork device is characterized in that a steel bar binding platform (1) is fixedly mounted at the top of the hydraulic climbing formwork device (13), the steel bar binding platform (1) adopts a polygonal hollow framework structure, and a steel wire mesh is arranged outside the polygonal hollow framework structure.
4. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: the template system (5) is supported at the top of the operating platform (9) through a transverse moving device (8), and the transverse moving device (8) adopts a track wheel mechanism.
5. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: the spacing adjusting device comprises a double-V linkage device (3) and a plurality of groups of pin-arranging hole sliding rod mechanisms (2), two ends of the double-V linkage device (3) are respectively hinged and connected with two sides of the double-limb tower column, one end of each pin-arranging hole sliding rod mechanism (2) is hinged on the tower column (14), and the other end of each pin-arranging hole sliding rod mechanism is connected with a template system on the other side of the double-limb tower column through a pin shaft.
6. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 5, wherein: the pin hole arrangement sliding rod mechanism (2) comprises a pin hole rod (201) hinged to the tower column (14), a plurality of pin holes (202) arranged side by side are machined in the pin hole rod (201), and the pin holes (202) are connected with a pin rod sliding groove (203) fixed on the tower column on the other side in a plug-in fit mode through bolts.
7. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 5, wherein: two V aggregate unit (3) include double-end T type pole (302), the both ends of double-end T type pole (302) articulate respectively has first connecting rod (301) and second connecting rod (303), and the other end that lies in first connecting rod (301) with one side articulates on one of them pylon (14) of two limbs pylon, and the other end that lies in second connecting rod (303) with one side articulates on another pylon (14) of two limbs pylon.
8. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 1, wherein: install between two pylons (14) of two limbs pylon and be used for a plurality of draw bridge devices (4) with both intercommunications, draw bridge device (4) include bridge plate (402), the one end of bridge plate (402) is articulated continuous with pylon (14) of one side through articulated otic placode (401), the other end top of bridge plate (402) is connected with draw bridge cable (403) through stay cord lug (404), the other end of draw bridge cable (403) is connected on pylon (14).
9. The widening platform device of the hydraulic creeping formwork for fast-constructing double-limb cable tower as claimed in claim 3, wherein: the steel bar binding platform (1) is an octagonal hollow steel bar binding platform.
10. The method for constructing the double-limb cable tower by adopting the widened platform device of the hydraulic creeping formwork for the rapid construction of the double-limb cable tower as claimed in any one of claims 1 to 9 is characterized by comprising the following steps:
firstly, fixedly mounting a wall attachment device (10) on an embedded part (6) on a poured cable tower (15), mounting a vertical guide rail (11) on the wall attachment device (10), and sliding and matching a hydraulic climbing formwork device (13) on the vertical guide rail (11);
secondly, supporting and installing a reinforcement binding platform (1) at the top of a hydraulic climbing formwork device (13) positioned on the outer side of a cable tower (15), supporting and installing a template system (5) at the top of the hydraulic climbing formwork device (13) positioned on the inner side of the cable tower (15), and connecting the other end of a tower column (14) where the template system (5) is positioned with the tower column (14) of the cable tower (15) on the other side through a double-V linkage device (3) and a plurality of groups of pin hole sliding rod mechanisms (2);
thirdly, adjusting the extension length of the pin hole arrangement sliding rod mechanism (2) according to the distance between cable towers (15) of the double-limb tower column, so that the template systems (5) on the two sides can be respectively matched with the distance between the cable towers (15) to be poured on the two sides, and then locking the bolts to fix the template systems (5) on the two sides;
step four, after the formwork systems (5) on the two sides are fixed, the suspension bridge device (4) is put down, the tower columns (14) on the two sides are communicated, and the cable tower (15) on the pouring layer is poured;
after the pouring of the pouring layer is finished, the tower columns (14) on the two sides are adjusted and closed to the middle part of the cable tower (15) through the transverse moving device (8) and the pin hole arrangement sliding rod mechanism (2) and the double-V linkage device (3) in a matched mode, and the cable tower is suitable for the double-limb cable tower with the smaller upper space;
and step six, repeating the step two to the step five to complete the pouring construction of the next pouring layer of the cable tower (15) until the pouring of the whole cable tower (15) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010307764.0A CN111379227A (en) | 2020-04-17 | 2020-04-17 | Variable-width platform device for hydraulic creeping formwork for quickly constructing double-limb cable tower and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010307764.0A CN111379227A (en) | 2020-04-17 | 2020-04-17 | Variable-width platform device for hydraulic creeping formwork for quickly constructing double-limb cable tower and construction method |
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| CN111379227A true CN111379227A (en) | 2020-07-07 |
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| CN202010307764.0A Pending CN111379227A (en) | 2020-04-17 | 2020-04-17 | Variable-width platform device for hydraulic creeping formwork for quickly constructing double-limb cable tower and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668393A (en) * | 2021-08-16 | 2021-11-19 | 中交路桥建设有限公司 | Method for quickly installing cable tower steel bar hook bar |
| CN114322948A (en) * | 2021-11-18 | 2022-04-12 | 中铁二十四局集团安徽工程有限公司 | High-rise concrete tower column positioning system and positioning method based on three-dimensional space positioning |
-
2020
- 2020-04-17 CN CN202010307764.0A patent/CN111379227A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668393A (en) * | 2021-08-16 | 2021-11-19 | 中交路桥建设有限公司 | Method for quickly installing cable tower steel bar hook bar |
| CN114322948A (en) * | 2021-11-18 | 2022-04-12 | 中铁二十四局集团安徽工程有限公司 | High-rise concrete tower column positioning system and positioning method based on three-dimensional space positioning |
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