CN101736698A - Accurate positioning method for cable-stayed bridge pylon cable guide pipe - Google Patents
Accurate positioning method for cable-stayed bridge pylon cable guide pipe Download PDFInfo
- Publication number
- CN101736698A CN101736698A CN 200910259817 CN200910259817A CN101736698A CN 101736698 A CN101736698 A CN 101736698A CN 200910259817 CN200910259817 CN 200910259817 CN 200910259817 A CN200910259817 A CN 200910259817A CN 101736698 A CN101736698 A CN 101736698A
- Authority
- CN
- China
- Prior art keywords
- guide pipe
- cable guide
- cable
- internal mold
- steel internal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to an accurate positioning method for a cable-stayed bridge pylon cable guide pipe, which comprises the following steps of: processing a steel inner die firstly and carrying out trial assembly on a cable guide pipe on the processed steel inner die; after the cable guide pipe reaches preset installation accuracy, calibrating the installation position of the cable guide pipe on the steel inner die and then disassembling the cable guide pipe; when a pylon cable area is constructed, lifting and fixing the steel inner die in place; and then mounting the cable guide pipe on the fixed steel inner die according to the position calibrated during trial assembly and welding and fixing the cable guide pipe. The invention converts the air positioning of a complicated cable guide pipe pylon into land factory positioning, can ensure the positioning accuracy of the cable guide pipe, simplifies the working procedure and shortens the construction period.
Description
Technical field
The present invention relates to a kind of bridge cable guide pipe mounting method, particularly a kind of cable-stayed bridge pylon cable guide pipe accurate positioning method that can improve the cable guide pipe positioning accuracy, shorten construction period.
Background technology
Suspension cable is the bearing system of cable-stayed bridge main-beam.See shown in Figure 1ly, suspension cable is to lead 2 and go out by being embedded in cable guide pipe in the steel concrete king-post 1, described cable guide pipe 2 by steel sleeve 21 be fixedly arranged on steel sleeve one end and the anchor plate 22 vertical with described steel sleeve constituted.During king-post 1 construction, high to the positioning accuracy request of cable guide pipe 2, because the quality of the positioning accuracy of cable guide pipe decision suspension cable construction quality, and it is stressed directly to influence pontic.
All carry out in the king-post work progress existing cable guide pipe location, according to the requirement to the cable guide pipe installation accuracy, on king-post cable guide pipe is cut correction and debugging in the work progress.Because the king-post construction belongs to work high above the ground, construction space is narrow and small, especially leaning tower post, there is very big difficulty in the location on the cable guide pipe tower, and in work progress king-post reinforcing bar, stiff skeleton, ring orientation prestress steel bundle, cable guide pipe and other the various built-in fittings ballast that influences each other, also directly strengthened the pinpoint difficulty of cable guide pipe, in addition, cable guide pipe is adjusted in cutting in the king-post work progress, and the king-post engineering time will be increased, and influences construction speed.
Summary of the invention
Technical problem to be solved by this invention is that the deficiency at existing cable guide pipe localization method provides the cable-stayed bridge pylon cable guide pipe that a kind of operation is simple, positioning accuracy is high, speed of application is fast accurate positioning method.
The present invention is realized by following technical scheme:
The cable-stayed bridge pylon cable guide pipe accurate positioning method is characterized in that:
(1) at first process a kind of steel internal mold, described steel internal mold is four rib tubular constructions, and side tube-wall bending in tube of described steel internal mold forms a cable guide pipe installing plate in tube, and described cable guide pipe installing plate is provided with the cable guide pipe installing hole;
(2) cable guide pipe is installed in temporarily on the steel internal mold that processes by the cable guide pipe installing hole, it is temporary fixed that cable guide pipe is provided with an end and the cable guide pipe installing plate of anchor plate, and the other end of cable guide pipe is supported by shaped steel temporarily; According to cable guide pipe actual installation permissible accuracy, cable guide pipe is revised debugging, after making cable guide pipe reach predetermined installation accuracy, at cable guide pipe installing hole periphery welding cable guide pipe locating piece, below the described cable guide pipe installing plate, set firmly the cable guide pipe locating support on the steel internal mold drum outer wall, then cable guide pipe is taken off from the steel internal mold;
(3) king-post has rope district when construction, described steel internal mold lifting is put in place and fixing, and with the inner formword of steel internal mold as king-post suspension cable section concrete casting and constructing, and with its permanent structure as the king-post anchorage zone;
(4) pass line conduit on the steel internal mold that fixes, cable guide pipe anchor plate one end is spacing by the locating piece of described cable guide pipe installing hole periphery, and anchor plate and described cable guide pipe installing plate passed through bolt, the other end of cable guide pipe is supported by described cable guide pipe locating support, after repetition measurement is determined the installation accuracy of cable guide pipe, that the cable guide pipe welding is fixing.
The invention has the advantages that:
Before the king-post construction, in advance at the steel internal mold of factory process pass line conduit, and in advance on the steel internal mold that processes trial assembly adjust cable guide pipe, cut correction as required accordingly, make it reach predetermined installation accuracy, the aerial location of the cable guide pipe that difficulty is very big in the construction of high-altitude is converted into location, factory land, during construction the steel internal mold is installed on the king-post and as the permanent structure of king-post, and cable guide pipe is directly installed on the steel internal mold by debug results, operation is simple, quick for installation, the positioning accuracy height has shortened construction period.
Description of drawings
Fig. 1 is a stayed bridge pylon cable suspension cable section cross-sectional schematic.
Fig. 2 is steel internal mold of the present invention and cable guide pipe mounting structure schematic diagram.
Fig. 3 is a cable guide pipe installation and locating method schematic diagram during the present invention constructs.
The specific embodiment
The present invention is in advance at a kind of steel internal mold of factory process.As shown in Figure 2, described steel internal mold 3 is four rib tubular constructions, one side tube-wall bending in tube of described steel internal mold, in tube, form a cable guide pipe installing plate 31, described cable guide pipe installing plate 31 is provided with cable guide pipe installing hole 32, cable guide pipe installing hole 32 peripheries are provided with cable guide pipe locating piece 33, below the described cable guide pipe installing plate 31, be provided with cable guide pipe locating support 34 on the steel internal mold drum outer wall.
During cable guide pipe installing hole 32 on the machined steel internal mold, be earlier with the position setting-out of cable guide pipe anchor point on described cable guide pipe installing plate 31, form cable guide pipe installing hole 32 according to the perforate on the cable guide pipe installing plate of anchor point position.
After machining cable guide pipe installing hole 32, earlier cable guide pipe 2 is carried out trial assembly.With bolt that anchor plate 22 ends and the cable guide pipe installing plate 31 of cable guide pipe is temporary fixed, the cable guide pipe other end, promptly cable guide pipe end opening place adopts shaped steel to locate temporarily.According to the parameters that design, monitoring unit provide, cable guide pipe is accurately located with total powerstation.Adopting measurement pattern to survey cable guide pipe axis characteristic point coordinate figure during the location compares with design load, providing characteristic point, to come the guiding operation personnel that cable guide pipe is adjusted in the difference of pile No., offset distance, these three positions of absolute altitude in place, and require cable guide pipe is cut correction accordingly according to installation accuracy, after meeting the requirements of installation accuracy, at cable guide pipe installing hole 32 periphery welding cable guide pipe locating pieces 33, and set firmly cable guide pipe locating support 34, thereby guarantee that cable guide pipe can not move and accurate positioning in welding below the cable guide pipe installing plate 31, on the steel internal mold outer wall.
Described cable guide pipe locating support 34 is for being provided with the steel plate of semi-circular recesses, semicircle groove place supporting cables conduit 2.
Because need to install a plurality of cable guide pipes 2 on the king-post, therefore the steel internal mold 3 of processing also has a plurality of.The last bottom surface of described each steel internal mold is provided with flange, can connect with bolt 4 by flange between a plurality of steel internal molds, and bolt 4 is divided into pad, to make things convenient for the steel internal mold to save up and down the contraposition connection is installed.Rubber pad is adopted in the junction, guarantees that steel internal mold piece is tight.
For easy to process, each steel internal mold also can adopt segmented processing, then each stage is coupled together, and connected mode is identical with connected mode between the above-mentioned steel internal mold.
Steel internal mold allowable error after the machine-shaping: panel planeness≤1.5mm, any diagonal error≤5.0mm, range error≤1.0mm between any eyelet of horizontal, vertical connecting bolt, the edge of horizontal, vertical connection overlaps with panel edges, avoids the uneven butt joint imprecision that causes template of face plate edge.
" 2+1 " moulding bed mode is adopted in the processing of steel internal mold, guarantees butt joint of steel internal mold and linear quality.The bed-plate dimension up and down of each steel internal mold may be different, but the cross sectional shape of going to the bottom of a last steel internal mold is identical with the upper base cross sectional shape of the following steel internal mold that is connected.Therefore adopt and process two steel internal molds that are connected earlier, after the assembling, determine again on this basis and the 3rd steel internal mold above the processing, promptly described " 2+1 " moulding bed form, with guarantee after the assembling seamed edge in line.
Referring to Fig. 3, king-post 1 rope district when construction arranged, earlier steel internal mold 3 is lifted on the king-post 1 and fixing, then direct pass line conduit 2 on the steel internal mold 3 that fixes.The anchor plate 22 of cable guide pipe 2 is by locating piece 33 location of cable guide pipe installing hole 32 peripheries, and with anchor plate 22 by bolt on described cable guide pipe installing plate 31, the other end of cableway pipe 2 supports by the described locating support 34 of being located at steel internal mold drum outer wall.According to measuring the characteristic point coordinate cable guide pipe positioning accuracy is carried out repetition measurement, guarantee the location accurately, then that cable guide pipe 2 is fixing with the welding of steel internal mold.Suspension cable section concrete casting and constructing adopts steel internal mold 3 as inner formword, and after concrete pouring was finished, described steel internal mold 3 was retained in the leaning tower post, as the permanent structure of king-post.
In the same way, on mounted steel internal mold, follow-up location steel internal mold and cable guide pipe are installed, and will be connected and fixed with bolt by described flange between all steel internal molds.
By the way, with cable guide pipe fast accurately location and installation on king-post.Suspension cable section concrete casting and constructing adopts steel internal mold 3 as inner formword, and after concrete pouring was finished, described steel internal mold 3 was retained in the leaning tower post, as the permanent structure of king-post.
Claims (5)
1. cable-stayed bridge pylon cable guide pipe accurate positioning method is characterized in that:
(1) at first process a kind of steel internal mold, described steel internal mold is four rib tubular constructions, and side tube-wall bending in tube of described steel internal mold forms a cable guide pipe installing plate in tube, and described cable guide pipe installing plate is provided with the cable guide pipe installing hole;
(2) cable guide pipe is installed in temporarily on the steel internal mold that processes by the cable guide pipe installing hole, it is temporary fixed that cable guide pipe is provided with an end and the cable guide pipe installing plate of anchor plate, and the other end of cable guide pipe is supported by shaped steel temporarily; According to cable guide pipe actual installation permissible accuracy, cable guide pipe is revised debugging, after making cable guide pipe reach predetermined installation accuracy, at cable guide pipe installing hole periphery welding cable guide pipe locating piece, below the described cable guide pipe installing plate, set firmly the cable guide pipe locating support on the steel internal mold drum outer wall, then cable guide pipe is taken off from the steel internal mold;
(3) king-post has rope district when construction, described steel internal mold lifting is put in place and fixing, and with the inner formword of steel internal mold as king-post suspension cable section concrete casting and constructing, and with its permanent structure as the king-post anchorage zone;
(4) pass line conduit on the steel internal mold that fixes, cable guide pipe anchor plate one end is spacing by the locating piece of described cable guide pipe installing hole periphery, and with anchor plate and described cable guide pipe installing plate by bolt, the other end of cable guide pipe is supported by described cable guide pipe locating support; After repetition measurement is determined the installation accuracy of cable guide pipe, that cable guide pipe is fixing with internal mold welding just.
2. cable-stayed bridge pylon cable guide pipe accurate positioning method according to claim 1, it is characterized in that: in the described step (1), elder generation on described cable guide pipe installing plate, forms cable guide pipe installing hole according to the perforate on the cable guide pipe installing plate of anchor point position with the position setting-out of cable guide pipe anchor point.
3. cable-stayed bridge pylon cable guide pipe accurate positioning method according to claim 1 is characterized in that: described cable guide pipe locating support is the steel plate that is provided with semi-circular recesses, semi-circular recesses place supporting cables conduit.
4. cable-stayed bridge pylon cable guide pipe accurate positioning method according to claim 1 is characterized in that: the quantity of described steel internal mold is more than 2, and the last bottom surface of each steel internal mold is provided with adpting flange.
5. cable-stayed bridge pylon cable guide pipe accurate positioning method according to claim 4 is characterized in that, described method further comprises:
(5), follow-up steel internal mold and cable guide pipe are installed on mounted steel internal mold, and will be connected and fixed by described flange between all steel internal molds according to the mode of described step (3) to (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910259817 CN101736698B (en) | 2009-12-15 | 2009-12-15 | Accurate positioning method for cable-stayed bridge pylon cable guide pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910259817 CN101736698B (en) | 2009-12-15 | 2009-12-15 | Accurate positioning method for cable-stayed bridge pylon cable guide pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101736698A true CN101736698A (en) | 2010-06-16 |
| CN101736698B CN101736698B (en) | 2011-05-04 |
Family
ID=42460685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910259817 Active CN101736698B (en) | 2009-12-15 | 2009-12-15 | Accurate positioning method for cable-stayed bridge pylon cable guide pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101736698B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493334A (en) * | 2011-11-30 | 2012-06-13 | 上海市城市建设设计研究总院 | Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof |
| CN103132455A (en) * | 2013-03-12 | 2013-06-05 | 中铁四局集团第二工程有限公司 | Three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device and positioning method |
| CN103952980A (en) * | 2014-05-15 | 2014-07-30 | 中交第三公路工程局有限公司 | Installing and positioning method of main tower ropeway pipe of cable-stayed bridge |
| CN104264588A (en) * | 2014-09-23 | 2015-01-07 | 中交第二航务工程局有限公司 | Cable duct locating device |
| CN105113411A (en) * | 2015-08-03 | 2015-12-02 | 中铁港航局集团有限公司 | Method for mounting and rapidly and accurately positioning main tower cable guide pipe of cable-stayed bridge |
| CN109208477A (en) * | 2018-10-17 | 2019-01-15 | 中铁大桥局集团第五工程有限公司 | Adjustable positioning device and application method for cable guide pipe nozzle centralized positioning |
| CN106638318B (en) * | 2016-11-25 | 2019-03-15 | 中铁大桥局集团第五工程有限公司 | The localization method and cable guide pipe installation method of cable-stayed bridge beam-ends anchor point |
| CN110470287A (en) * | 2019-07-30 | 2019-11-19 | 中铁大桥局集团第五工程有限公司 | Cable-stayed bridge cable guide pipe localization method |
| CN114016405A (en) * | 2021-11-26 | 2022-02-08 | 中铁二局集团有限公司 | Method for installing pylon cable guide pipe of cable-stayed bridge |
| CN114960426A (en) * | 2022-04-20 | 2022-08-30 | 西安科技大学 | Steel inner die for concrete bridge tower anchoring area and construction method thereof |
| CN117906466A (en) * | 2024-03-15 | 2024-04-19 | 中交第一航务工程局有限公司 | Center position retest method for anchor backing plate of embedded cable conduit at beam end of concrete cable-stayed bridge |
-
2009
- 2009-12-15 CN CN 200910259817 patent/CN101736698B/en active Active
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493334A (en) * | 2011-11-30 | 2012-06-13 | 上海市城市建设设计研究总院 | Bearing platform cable-stayed precast assembled column bearing platform structure and assembling and positioning process thereof |
| CN103132455A (en) * | 2013-03-12 | 2013-06-05 | 中铁四局集团第二工程有限公司 | Three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device and positioning method |
| CN103132455B (en) * | 2013-03-12 | 2015-06-10 | 中铁四局集团第二工程有限公司 | Three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device and positioning method |
| CN103952980A (en) * | 2014-05-15 | 2014-07-30 | 中交第三公路工程局有限公司 | Installing and positioning method of main tower ropeway pipe of cable-stayed bridge |
| CN103952980B (en) * | 2014-05-15 | 2016-06-08 | 中交第三公路工程局有限公司 | A kind of Cable stayed Bridge Main Tower cableway pipe installation and locating method |
| CN104264588A (en) * | 2014-09-23 | 2015-01-07 | 中交第二航务工程局有限公司 | Cable duct locating device |
| CN104264588B (en) * | 2014-09-23 | 2016-06-29 | 中交第二航务工程局有限公司 | Cable guide pipe positioner |
| CN105113411A (en) * | 2015-08-03 | 2015-12-02 | 中铁港航局集团有限公司 | Method for mounting and rapidly and accurately positioning main tower cable guide pipe of cable-stayed bridge |
| CN106638318B (en) * | 2016-11-25 | 2019-03-15 | 中铁大桥局集团第五工程有限公司 | The localization method and cable guide pipe installation method of cable-stayed bridge beam-ends anchor point |
| CN109208477A (en) * | 2018-10-17 | 2019-01-15 | 中铁大桥局集团第五工程有限公司 | Adjustable positioning device and application method for cable guide pipe nozzle centralized positioning |
| CN109208477B (en) * | 2018-10-17 | 2023-11-28 | 中铁大桥局集团第五工程有限公司 | Adjustable positioning device for positioning center of orifice of cable duct and use method |
| CN110470287A (en) * | 2019-07-30 | 2019-11-19 | 中铁大桥局集团第五工程有限公司 | Cable-stayed bridge cable guide pipe localization method |
| CN110470287B (en) * | 2019-07-30 | 2021-08-10 | 中铁大桥局集团第五工程有限公司 | Cable-stayed bridge cable guide pipe positioning method |
| CN114016405A (en) * | 2021-11-26 | 2022-02-08 | 中铁二局集团有限公司 | Method for installing pylon cable guide pipe of cable-stayed bridge |
| CN114960426A (en) * | 2022-04-20 | 2022-08-30 | 西安科技大学 | Steel inner die for concrete bridge tower anchoring area and construction method thereof |
| CN117906466A (en) * | 2024-03-15 | 2024-04-19 | 中交第一航务工程局有限公司 | Center position retest method for anchor backing plate of embedded cable conduit at beam end of concrete cable-stayed bridge |
| CN117906466B (en) * | 2024-03-15 | 2024-05-24 | 中交第一航务工程局有限公司 | Center position retest method for anchor backing plate of embedded cable conduit at beam end of concrete cable-stayed bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101736698B (en) | 2011-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101736698B (en) | Accurate positioning method for cable-stayed bridge pylon cable guide pipe | |
| CN102102444B (en) | Assembling and positioning construction method of large steel casting members | |
| CN201560398U (en) | Inner steel mould for accurately positioning tower column cable sleeves of cable-stayed bridge | |
| CN103556836B (en) | Spherical reticulated shells assembling and construction method under restricted clearance condition | |
| CN107806205B (en) | Mounting structure and mounting method of lining-free steel dome | |
| CN104141318B (en) | A kind of Large-diameter Steel tubing string suspension column construction method of installation | |
| AU2011253650A1 (en) | Installing method for anchor cage and installing method for industrial equipment | |
| CN104074364A (en) | Steel casting funnel-shaped structure pre-assembling positioning construction method | |
| CN204001428U (en) | A kind of Large-diameter Steel tubing string suspension column is installed pre-buried location structure and suspension column structure thereof | |
| CN105780995A (en) | Curved surface space pipe truss structure and mounting method thereof | |
| CN103088843B (en) | Pipe gallery embedded iron parts construction method of installation | |
| CN107246026B (en) | Tower equipment foundation bolt embedding construction mold and embedding method thereof | |
| CN105317052A (en) | Tower crane foundation bolt fixing method | |
| CN114717954B (en) | Ultra-high concrete tower column construction method based on three-dimensional space coordinate positioning | |
| CN209891234U (en) | Accurate positioning mechanism for embedded foundation bolt of steel pipe column concrete foundation | |
| CN105648923A (en) | Stay cable saddle positioning device and positioning method thereof | |
| CN110748156B (en) | Sliding positioning top supporting structure of large silo and construction method thereof | |
| CN104863259A (en) | Upside-down construction method for large-span ultra-high signal-layer cylindrical architectural steel structure | |
| CN115788083A (en) | Automatic quick installation correcting unit of steel column | |
| CN113232447B (en) | Positioning assembly for mounting sculpture panel and mounting method of sculpture panel | |
| CN205343431U (en) | Prefabricated wall body grout sleeve strip solid matter exposes accurate positioning die of reinforcing bar | |
| CN112112186B (en) | Installation method of split jacket foundation on offshore converter station | |
| CN210598177U (en) | Assembling jig frame for space special-shaped steel pipe truss | |
| CN105064681A (en) | Installing method of steel structure foundation screw bolt | |
| CN105643791A (en) | Accurate positioning die for prefabricated wall body grouting sleeve stripy closely spaced exposed steel bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CCCC ROAD AND BRIDGE CONSTRUCTION CO., LTD. Free format text: FORMER OWNER: ROAD + BRIDGE GROUP INTERNATIONAL CONSTRUCTION CO., LTD. Effective date: 20120718 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120718 Address after: 101100 auspicious garden 19, Beijing, Tongzhou District Co-patentee after: Road & Bridge International Co., Ltd. Patentee after: China Communications Road and Bridge North China Engineering Co., Ltd. Address before: 101100 auspicious garden 19, Beijing, Tongzhou District Co-patentee before: CRBC International Co., Ltd. Patentee before: China Communications Road and Bridge North China Engineering Co., Ltd. |