CN110607748B - Stay cable guide bar installation structure and installation method - Google Patents
Stay cable guide bar installation structure and installation method Download PDFInfo
- Publication number
- CN110607748B CN110607748B CN201910886470.5A CN201910886470A CN110607748B CN 110607748 B CN110607748 B CN 110607748B CN 201910886470 A CN201910886470 A CN 201910886470A CN 110607748 B CN110607748 B CN 110607748B
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- stay cable
- guide
- guide frame
- welding
- construction platform
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- 238000009434 installation Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 74
- 238000010276 construction Methods 0.000 claims abstract description 45
- 230000004927 fusion Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the technical field of stay cable installation, in particular to a stay cable guide bar installation structure and an installation method. The construction platform comprises a guide frame sleeved on the stay cable in a ring manner and a construction platform which can be driven by traction equipment to axially move along the stay cable; the guide frame is rotatably hinged to the construction platform around the axis of the stay cable, and a welding device for welding the guide strip on the outer side of the stay cable is arranged on the guide frame; and a circumferential adjusting device for driving the guide frame to rotate around the axis of the stay cable is arranged between the construction platform and the guide frame. The guide bar disclosed by the invention has the advantages of simple installation structure, high welding installation efficiency, high precision, simple welding installation procedure, low investment cost of manpower and material resources, great convenience for the operation of constructors and great popularization value.
Description
Technical Field
The invention relates to the technical field of stay cable installation, in particular to a stay cable guide bar installation structure and an installation method.
Background
The stay cable structure is mainly applied to cable-stayed bridges and high-tower buildings, and has the carrier functions of decoration, landscapes and other structures besides being used as a stress structure, for example, a lamp is arranged on the stay cable, so that the stay cable structure can illuminate and can be used as a lamplight landscape site. The stay cable is used as a mature product at home and abroad, and has relevant standards and specifications for design, manufacture and the like. When the accessory is installed on the surface of the stay cable, the anti-corrosion capability and the protection measures of the original structure cannot be reduced, and the original service life of the stay cable structure is prevented from being reduced. Therefore, the outer sheath with a certain thickness can be arranged on the surface of the original stay cable, and the outer sheath can be used as a carrier for installing other accessories and can be added with a protective layer of the stay cable. In order to ensure the installation accuracy of the outer sleeve, guide strips with a certain length or normal installation can be installed on the surface of the stay cable at certain intervals, and the guide strips are installed after the stay cable is tensioned as a guide structure for installing the outer sleeve, so that special equipment is required for accurate installation, but no related method and accurate installation equipment for installing the guide strips exist at present.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provides a stay cable guide bar installation structure and an installation method.
The technical scheme of the invention is as follows: a stay cable guide bar mounting structure which is characterized in that: the construction platform comprises a guide frame sleeved on the stay cable in a ring manner and a construction platform which can be driven by traction equipment to axially move along the stay cable; the guide frame is rotatably hinged to the construction platform around the axis of the stay cable, and a welding device for welding the guide strip on the outer side of the stay cable is arranged on the guide frame; and a circumferential adjusting device for driving the guide frame to rotate around the axis of the stay cable is arranged between the construction platform and the guide frame.
The welding device further comprises a welding oil cylinder; one end of the welding oil cylinder is fixed on the inner side of the guide frame, the other end of the welding oil cylinder extends to one side of the inclined stay cable along the radial direction of the inclined stay cable, and a welding head for fusion welding the guide strip is arranged at one end extending to the inclined stay cable.
Further the circumferential adjustment means comprises a base; one end of the base body is hinged to the guide frame, and the other end of the base body is fixed on the construction platform; a driving device for driving the guide frame to move along the inclined pull rope ring direction is arranged between the guide frame and the base body.
The driving device further comprises a motor fixedly arranged on the guide frame; a circle of annular gears are arranged on the outer side of the matrix; and the position-adjusting gear at the output end of the motor is in meshed transmission connection with the annular gear.
A circle of sliding grooves which are recessed along the radial direction of the stay cable are further arranged on the outer side of the base body; a circle of bosses corresponding to the sliding grooves are arranged on the guide frame; the boss can be clamped in the chute in a rotating way around the axis of the stay cable.
The axial upper end of the guide frame is further provided with a guide ring; the guide ring is a ring structure sleeved on the stay cable and used for maintaining the coaxiality of the guide frame and the stay cable.
A stay cable guide bar installation method is characterized in that: installing a guide frame and a construction platform outside the stay cable and connecting the guide frame and the construction platform together, hoisting the construction platform and the guide frame to the installation position of the guide strip through traction equipment, adjusting the circumferential position of a welding device on the guide frame, enabling the welding device to accurately position the installation position of the guide strip, fusion welding the guide strip outside the stay cable, and driving the construction platform to the next welding construction position through traction equipment after completion until all the guide strips are installed.
The method for adjusting the circumferential position of the welding device on the guide frame further comprises the following steps: and driving the guide frame to rotate around the axis of the stay cable by taking the construction platform as a counterforce foundation until a welding device on the guide frame accurately positions the welding position of the stay cable guide bar in the circumferential direction.
The further method for fusion welding the guide strip at the outer side of the stay cable comprises the following steps: after the circumferential position of the welding device is adjusted, a guide strip is arranged on the welding device, and is driven to move and fit on the outer side of the stay cable along the radial direction of the stay cable, and the guide strip is welded on the outer side of the stay cable after being melted.
The invention has the advantages that: 1. the construction platform and the guide frame with the welding device are arranged on the outer side of the stay cable, so that the guide frame is convenient to install to a great extent, the position of the welding device in the axial direction of the stay cable can be adjusted through traction equipment, the position of the welding device in the circumferential direction of the stay cable can be changed through the circumferential adjusting device, the guide frame is accurately positioned on the stay cable, and the installation precision is greatly improved;
2. The position relation between the guide strip and the stay cable in the radial direction can be adjusted by arranging the welding oil cylinder, enough space can be reserved when the guide strip is installed, so that the guide strip can be conveniently guided in, the guide strip can be conveniently attached to the outer side of the stay cable when the guide strip is welded, and the welding construction of the guide strip is greatly facilitated;
3. The guide frame is connected with the construction platform through the base body, so that the guide frame can rotate relative to the base body, the problem of connection between the guide frame and the construction platform is solved, the guide frame and the base body are simple in installation and connection structure, and the circumferential adjustment is convenient and quick;
4. the guide frame and the base body can be conveniently driven to generate relative displacement along the circumferential direction of the cable-stayed through the meshed transmission structure of the circumferential gear and the positioning gear, so that the circumferential position of the welding device is adjusted, and the adjustment mode is simple and efficient;
5. through the clamping structure of the boss and the chute, the relative displacement of the guide frame and the matrix except axial rotation around the stay cable can be effectively limited, so that the stability of connection of the guide frame and the matrix is ensured, and the guide frame is convenient to adjust the circumferential position;
6. The guide ring is arranged at the upper end of the guide frame, so that the guide frame is ensured to be arranged coaxially with the stay cable all the time, the stability of the guide frame mounting structure is improved, and the welding device is convenient to adjust;
7. The welding device is axially and circumferentially adjusted, so that the welding of the guide strip can be accurately positioned, the efficient welding and installation of the guide strip are ensured, the whole welding process is extremely simple, and the investment of manpower and material resources is low;
8. The guide frame is subjected to annular position adjustment, so that the welded guide bars can be accurately aligned, deviation can not occur, structural installation on a later stay cable is more accurate, an annular adjustment mode is simple, and a large-scale adjusting hoisting device is not required to be introduced for a reaction frame based on a construction platform to finish the process;
9. Through the regulation to the radial position of gib block, both made things convenient for the installation leading-in to the gib block, improved the installation accuracy of gib block again, greatly made things convenient for constructor's welding efficiency of construction.
The guide bar disclosed by the invention has the advantages of simple installation structure, high welding installation efficiency, high precision, simple welding installation procedure, low investment cost of manpower and material resources, great convenience for the operation of constructors and great popularization value.
Drawings
Fig. 1: the guide frame and stay cable installation structure is schematically shown;
Fig. 2: the guide frame and matrix connection structure of the application is schematically shown;
Fig. 3: the actual operation structure of constructors is schematically shown;
Wherein: 1-stay cable; 2-a guide frame; 3-a construction platform; 4, welding an oil cylinder; 5-a welding head; 6-a substrate; 7, a motor; 8-a ring gear; 9-a positioning gear; 10-a chute; 11-a boss; 12-a guide ring.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 to 3, in the stay cable guide bar installation structure, the installation structure of the embodiment surrounds the stay cable 1, and can adjust the axial, radial and circumferential positions of the stay cable 1, and accurately install the guide bar on the stay cable 1. The guide frame comprises a guide frame 2 which is sleeved on a stay cable 1 in a ring mode and a construction platform 3 which can be driven by traction equipment to move along the axial direction of the stay cable 1, wherein the construction platform 3 is used for being used by constructors.
As shown in fig. 1-2, the guide frame 2 of the present embodiment is a support frame encircling the stay cable 1, the guide frame 2 is provided with a base body 6 along the axial lower end of the stay cable 1, the base body 6 encircles the stay cable 1, one end of the base body 6 is hinged and connected to the guide frame 2 in a rotatable manner around the axis of the stay cable 1, and the other end is fixed on the construction platform 3. The outside of the base body 6 is provided with a circle of sliding grooves 10 which are recessed along the radial direction of the stay cable 1, the guide frame 2 is provided with a circle of bosses 11 which correspond to the sliding grooves 10, and the bosses 11 can be clamped in the sliding grooves 10 in a rotating way around the axis of the stay cable 1.
A driving device for driving the guide frame 2 to rotate around the axis of the stay cable 1 is arranged between the guide frame 2 and the base body 6, and as shown in fig. 1, the driving device comprises a motor 7 fixedly arranged on the guide frame 2, a circle of annular gear 8 is arranged on the outer side of the base body 6, and a positioning gear 9 at the output end of the motor 7 is in meshed transmission connection with the annular gear 8. The motor 7 drives the positioning gear 9 to rotate, the positioning gear 9 is meshed with the annular gear 8, and accordingly reverse acting force is applied to the guide frame 2, the guide frame 2 is driven to rotate around the axis of the stay cable 1, and the annular position of the guide frame 2 is changed.
As shown in fig. 1, in this embodiment, a welding device for welding a guide bar is provided on a guide frame 2, the welding device includes a welding cylinder 4, one end of the welding cylinder 4 is fixed inside the guide frame 2, the other end extends to one side of the stay cable 1 along the radial direction of the stay cable 1, and one end extending to the stay cable 1 is provided with a welding head 5 for melting the welding guide bar. The radial position of the welding head 5 can be changed through the welding cylinder 4, so that the guiding strip is conveniently guided in and welded.
In addition, a guide ring 12 is arranged at the axial end of the guide frame 2, and the guide ring 12 is of an annular structure sleeved on the stay cable 1 for maintaining the coaxial structure of the guide frame 2 and the stay cable 1.
In the guide frame 2, the construction platform 3 and the base body 6 of the embodiment are fixedly connected in the axial direction of the stay cable 1, the construction platform 3 is pulled by traction equipment to move along the axial direction of the stay cable 1, and the position of the guide frame 2 along the axial direction of the stay cable 1 can be changed. The circumferential position of the guide frame 2 can be changed by the motor 7, and the radial position of the welding head 5 can be changed by the welding cylinder 4. Therefore, the guide strip welding process of the embodiment can carry out positioning in multiple directions so as to achieve the purpose of accurate installation.
In actual construction, as shown in fig. 3, the following steps are performed: 1. the guide frame 2, the construction platform 3 and the base body 6 of the embodiment are all of a Harvard structure, and when the guide frame is used, the guide frame 2, the construction platform 3 and the base body 6 are directly sleeved on the stay cable 1 through bolts or other structures, the construction platform 3 is fixed on the base body 6 through connecting bolts, and constructors and a plurality of guide strips can be borne on the construction platform 3;
2. The traction equipment (a in fig. 3) is used for traction the construction platform 3 to move to a guide bar welding construction position along the axial direction of the stay cable 1, the motor 7 is used for driving the guide frame 2 to rotate around the axis of the stay cable 1, and the welding head 5 is aligned to the guide bar installation position on the stay cable 1;
3. after accurate alignment, guiding a guide bar to the welding head 5, driving the welding cylinder 4 to enable the welding head 5 to be close to the stay cable 1, and installing the welding head 5 on the stay cable 1 by melting the guide bar;
4. after the guide strip at the position is installed, lifting the construction platform 3 by a certain distance (50 cm) by using traction equipment again, checking the installation position of the next guide strip to be installed according to the position of the installed guide strip, and if axial deviation exists, adjusting the guide strip by using the traction equipment, wherein the circumferential deviation can be adjusted by using the motor 7;
5. And (3) repeating the steps 3 and 4 to finish the installation of the residual guide strips of the single stay cable 1.
In the installation process, every time a certain number of guide bars are installed, the absolute positions of the installed guide bars are measured by using a ground positioning instrument, and the positioning precision of the guide bar installation equipment is checked, so that accumulated errors are eliminated, and the integral installation precision of the guide bars on the stay cables is ensured.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A stay cable guide bar mounting structure which is characterized in that: comprises a guide frame (2) sleeved on a stay cable (1) and a construction platform (3) which can be driven by traction equipment to move along the axial direction of the stay cable (1); the guide frame (2) is hinged to the construction platform (3) in a rotatable mode around the axis of the stay cable (1), and a welding device for welding the guide strip on the outer side of the stay cable (1) is arranged on the guide frame (2); and a circumferential adjusting device for driving the guide frame (2) to rotate around the axis of the stay cable (1) is arranged between the construction platform (3) and the guide frame (2).
2. A stay cable guide bar mounting structure as defined in claim 1 wherein: the welding device comprises a welding cylinder (4); one end of the welding oil cylinder (4) is fixed on the inner side of the guide frame (2), the other end of the welding oil cylinder extends to one side of the inclined stay cable (1) along the radial direction of the inclined stay cable (1), and a welding head (5) for melting and welding the guide strip is arranged at one end extending to the inclined stay cable (1).
3. A stay cable guide bar mounting structure as defined in claim 1 wherein: the circumferential adjustment device comprises a base body (6); one end of the base body (6) is hinged to the guide frame (2), and the other end of the base body is fixed on the construction platform (3); a driving device for driving the guide frame (2) to move along the circumferential direction of the stay cable (1) is arranged between the guide frame (2) and the base body (6).
4. A stay cable guide bar mounting structure according to claim 3, wherein: the driving device comprises a motor (7) fixedly arranged on the guide frame (2); a circle of annular gears (8) is arranged on the outer side of the base body (6); the positioning gear (9) at the output end of the motor (7) is in meshed transmission connection with the annular gear (8).
5. A stay cable guide bar mounting structure according to claim 3 or 4, wherein: a circle of sliding grooves (10) which are recessed along the radial direction of the stay cable (1) are arranged on the outer side of the base body (6); a circle of bosses (11) corresponding to the sliding grooves (10) are arranged on the guide frame (2); the boss (11) can be clamped in the chute (10) in a rotating way around the axis of the stay cable (1).
6. A stay cable guide bar mounting structure as defined in claim 1 wherein: the axial upper end of the guide frame (2) is provided with a guide ring (12); the guide ring (12) is a ring structure sleeved on the stay cable (1) and used for maintaining the coaxial structure of the guide frame (2) and the stay cable (1).
7. A method of installing the stay cable guide bar installation structure of claim 1, wherein: installing a guide frame (2) and a construction platform (3) outside a stay cable (1) and connecting the guide frame (2) and the construction platform (3) together, hoisting the construction platform (3) together with the guide frame (2) to a guide bar installation position through traction equipment, adjusting the circumferential position of a welding device on the guide frame (2), enabling the welding device to accurately position the guide bar installation position, fusion welding the guide bars outside the stay cable (1), and driving the construction platform (3) to the next welding construction position through traction equipment after completion until all the guide bars are installed.
8. The method for installing a stay cable guide bar installation structure of claim 7, wherein: the method for adjusting the circumferential position of the welding device on the guide frame (2) comprises the following steps: the construction platform (3) is used as a counterforce foundation to drive the guide frame (2) to rotate around the axis of the stay cable (1) until the welding device on the guide frame (2) accurately positions the welding position of the guide bar of the stay cable (1) in the circumferential direction.
9. The method for installing a stay cable guide bar installation structure of claim 7, wherein: the method for fusion welding the guide strip at the outer side of the stay cable (1) comprises the following steps: after the circumferential position of the welding device is adjusted, a guide strip is arranged on the welding device, and is driven to move and fit on the outer side of the stay cable (1) along the radial direction of the stay cable (1), and the guide strip is welded on the outer side of the stay cable (1) after being melted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886470.5A CN110607748B (en) | 2019-09-19 | 2019-09-19 | Stay cable guide bar installation structure and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910886470.5A CN110607748B (en) | 2019-09-19 | 2019-09-19 | Stay cable guide bar installation structure and installation method |
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| Publication Number | Publication Date |
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| CN110607748A CN110607748A (en) | 2019-12-24 |
| CN110607748B true CN110607748B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910886470.5A Active CN110607748B (en) | 2019-09-19 | 2019-09-19 | Stay cable guide bar installation structure and installation method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113789721B (en) * | 2021-09-14 | 2023-05-02 | 上海浦江缆索股份有限公司 | Stay cable guide bar installation structure and installation method |
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| US4331278A (en) * | 1978-04-10 | 1982-05-25 | Sherer Charles R | Pipe welding apparatus |
| US4995583A (en) * | 1988-05-16 | 1991-02-26 | Freyssinet International (Stup) | Devices for damping the vibrations of stay cables |
| JPH11241310A (en) * | 1997-12-22 | 1999-09-07 | Nippon Mentec Kk | Covering method for laid cable and cylindrical joint therefor |
| JP2007315035A (en) * | 2006-05-25 | 2007-12-06 | Se Corp | Installation method of stay cable |
| JP2012016710A (en) * | 2010-07-06 | 2012-01-26 | Hanshin Expressway Co Ltd | Welding device for steel floor slab |
| CN103015320A (en) * | 2012-12-24 | 2013-04-03 | 东南大学 | Stay cable device for kilometric cable stayed bridge and mounting method thereof |
| CN109403204A (en) * | 2018-11-14 | 2019-03-01 | 中交第二航务工程局有限公司 | Suitable for the rope pipe sleeve of Cable Structure system, the Multifunctional coat pipe containing the rope pipe sleeve and stayed structure |
| CN210975549U (en) * | 2019-09-19 | 2020-07-10 | 中交第二航务工程局有限公司 | Stay cable gib block mounting structure |
-
2019
- 2019-09-19 CN CN201910886470.5A patent/CN110607748B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4331278A (en) * | 1978-04-10 | 1982-05-25 | Sherer Charles R | Pipe welding apparatus |
| US4995583A (en) * | 1988-05-16 | 1991-02-26 | Freyssinet International (Stup) | Devices for damping the vibrations of stay cables |
| JPH11241310A (en) * | 1997-12-22 | 1999-09-07 | Nippon Mentec Kk | Covering method for laid cable and cylindrical joint therefor |
| JP2007315035A (en) * | 2006-05-25 | 2007-12-06 | Se Corp | Installation method of stay cable |
| JP2012016710A (en) * | 2010-07-06 | 2012-01-26 | Hanshin Expressway Co Ltd | Welding device for steel floor slab |
| CN103015320A (en) * | 2012-12-24 | 2013-04-03 | 东南大学 | Stay cable device for kilometric cable stayed bridge and mounting method thereof |
| CN109403204A (en) * | 2018-11-14 | 2019-03-01 | 中交第二航务工程局有限公司 | Suitable for the rope pipe sleeve of Cable Structure system, the Multifunctional coat pipe containing the rope pipe sleeve and stayed structure |
| CN210975549U (en) * | 2019-09-19 | 2020-07-10 | 中交第二航务工程局有限公司 | Stay cable gib block mounting structure |
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| CN110607748A (en) | 2019-12-24 |
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