CN103132455B - Three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device and positioning method - Google Patents
Three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device and positioning method Download PDFInfo
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- CN103132455B CN103132455B CN201310077928.5A CN201310077928A CN103132455B CN 103132455 B CN103132455 B CN 103132455B CN 201310077928 A CN201310077928 A CN 201310077928A CN 103132455 B CN103132455 B CN 103132455B
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Abstract
The invention discloses a three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device and a positioning method. The three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device comprises an upper frame body and a lower frame portion. The lower frame is a square and the lower frame is welded by four underframes. The upper frame body consists of a connecting frame, a vertical positioning micro-adjusting device and a horizontal micro-adjusting device. Five L-shaped counter-force frames are welded on the left side of the upper frame body. Two L-shaped counter-force frames which rotate by 180 degrees in a clockwise direction are respectively welded between a second counter-force frame and a third counter-force frame. The two counter-force frames are respectively welded with horizontal adjustment levers and the other ends of the two counter-force frames are connected with a clamp in a welding mode. Adjusting screw rods which can adjust the widths of the clamp are installed at two ends of the clamp. Two vertical adjustment levers are installed on a bottom frame of the top of the upper frame body. A spandrel girder is welded on the tops of the two vertical adjustment levers. The three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device and the positioning method have the advantages of being simple in operation, accurate in location, high in work efficiency, low in investments of labor and material and the like. The construction technology and the method of cable duct positioning are improved and project process is enhanced. The upper frame body can be used repeatedly and construction cost is reduced.
Description
Technical field
The present invention relates to the accurate positioning construction process of cable stayed bridge cable guide pipe, specifically belong to cable-stayed bridge body cable guide pipe accurate positioning device.
Background technology
Suspension cable is the bearing system of stayed-cable bridge girder.Suspension cable is derived by burying the cable guide pipe be located in steel concrete king-post, cable guide pipe is made up of steel sleeve and the anchor plate being fixedly arranged on steel sleeve one end, during king-post construction, high to the positioning accuracy request of cable guide pipe, because the positioning precision of cable guide pipe determines the quality of stayed Cable Construction quality, and it is stressed directly to affect pontic.
In existing public technology, as publication number: CN 101736698 B " accurate positioning method for cable-stayed bridge pylon ", describe king-post cable guide pipe accurate positioning method, first process a kind of steel internal mold, cable guide pipe is carried out trial assembly on the steel internal mold processed, after the installation accuracy making cable guide pipe reach predetermined, the installation site of cable guide pipe is demarcated by steel internal mold, then unloads cable guide pipe; When constructing in king-post You Suo district, first the lifting of described steel internal mold is put in place and fixes, then on the steel internal mold fixed by the position pass line conduit demarcated during trial assembly, and cable guide pipe to be welded and fixed.For this public technology accurate positioning method for cable-stayed bridge pylon for cable-stayed bridge body cable guide pipe implement accurately locate and be not suitable for.
The construction of cable-stayed bridge body cable guide pipe location is general adopts the cooperation of large-scale hoisting machinery overall process to install.First by survey crew setting-out cable guide pipe locus, utilize lifting machine pass line conduit and carry out just location.After first location completes, measure cable guide pipe installation site deviation, recycling guide chain coordinates lifting machine to adjust.Repeatedly carry out said process, until the locus of cable guide pipe meets the demands.The shortcoming of the method is, utilizes hanging device to adjust cable guide pipe locus, and precision is difficult to ensure, often needs repeatedly to adjust repeatedly just can reach installation requirement; Survey crew needs the locus of repetitive measurement, setting-out cable guide pipe, causes cable guide pipe to install locating speed slowly, adds manpower and goods and materials input.
Summary of the invention
The object of this invention is to provide a kind of three-dimensional group box-like cable-stayed bridge body cable guide pipe accurate positioning device, this device can realize the cable guide pipe locus accurate adjustment of different length and caliber, locating rack is detachable and reuse after cable guide pipe has been located, and has accurate positioning, easy for installation, structure simple, the feature such as quick construction.
Technical scheme of the present invention is as follows: three-dimensional group box-like cable-stayed bridge body cable guide pipe accurate positioning device and localization method, it comprises, lower frame two parts, it is characterized in that: described lower frame is by the square of four welding of underframes, square 4 lower ends are provided with the supporting leg be welded by shaped steel, described upper frame is by link, vertical and located lateral micromatic setting is formed, described link is the square be welded by four shaped steel, described vertical positioning trimming device is made up of two vertical adjustment bars and top spandrel girder, described located lateral micromatic setting is formed primarily of two lateral adjustments bars and front end fixture, five L-type reaction frames of equidistant arrangement are welded with on the left of upper frame, in reaction frame back, upper end is welded with underframe, two L-type reaction frames of 180 ° of turning clockwise are welded with respectively between second and the 3rd reaction frame, two reaction frames are welded with lateral adjustments bar respectively herein, the other end of lateral adjustments bar is connected with fixture by welding, described fixture two ends are provided with the adjustment screw mandrel of adjustment clamp jaw width, described upper frame top underframe is welded with two vertical adjustment bars, two described vertical adjustment bars are welded with spandrel girder.
Four described underframe and link are respectively equipped with the connecting bolt of equidistant arrangement.
Described underframe and link along bridge to length slightly larger than cable beam anchoring block length, size range is between 1.8m ~ 2.8m, direction across bridge width is slightly less than cable beam anchoring block width, size range is between 1.0m ~ 1.2m, the supporting leg bottom discrepancy in elevation that square 4 lower ends are welded by shaped steel should be determined according to skew web plate gradient, short supporting leg length range is between 0.3 ~ 0.5m, and described located lateral micromatic setting adjusting rod length is 0.6m, can range of lateral adjustment be 0.3m; Described vertical positioning trimming device adjusting rod length is 1.0m, and adjustable length is 0.5m, and top spandrel girder length range is between 1.0m ~ 1.2m, and five L-type reaction frames of the equidistant arrangement welded on the left of described upper frame are highly 0.3m.
Concrete localization method has following steps:
(1) also fixing according to beam body cable guide pipe design attitude mounting and positioning device lower frame, upper frame is positioned on lower frame, after exactitude position, with bolts therebetween;
(2) lift cable guide pipe and put into locating rack, mouth at the bottom of cable guide pipe is carried out exactitude position, and carries out the cable guide pipe mouth of pipe and just locate;
(3) after the cable guide pipe mouth of pipe has just been located, be shelved on cable guide pipe upper end on the spandrel girder of vertical positioning trimming device, cable guide pipe clamps by the adjustment screw mandrel of adjustment located lateral micromatic setting front end fixture;
(4) measure cable guide pipe mouth of pipe actual elevation, and calculate actual measurement absolute altitude and design elevation deviation, regulate cable guide pipe mouth of pipe absolute altitude to design attitude by vertical positioning trimming device;
(5) after cable guide pipe mouth of pipe vertical adjustment completes, measure cable guide pipe orifice plane coordinate, and calculate Measured Coordinates and design grid deviation, rotate lateral adjustments bar, and provided support by reaction frame, regulate cable guide pipe orifice plane to design attitude;
(6) measure cable guide pipe mouth of pipe three-dimensional coordinate, if Measured Coordinates transfinites with design grid deviation, then repeat (4), (5) step, until deviation is in allowed band.
(7) weld type steel frame antilift wire catheter position, removes cable guide pipe positioner upper frame, completes the accurate position fixing process of cable guide pipe;
Compared with the prior art, beneficial effect of the present invention is as follows:
By the research to cable guide pipe accurate positioning device and key construction technology, have developed a kind of three-dimensional group box-like cable-stayed bridge body cable guide pipe accurate positioning device, efficiently solve that beam body cable guide pipe positioning precision is low, speed is slow, manpower and goods and materials drop into many shortcomings and a difficult problem for the disposable input of locating rack not recoverable, for similar bridge engineering construction provides reference.
Adopt this beam body cable guide pipe positioner, accurate adjustment can be carried out to cable guide pipe locus, significantly shorten the cable guide pipe location engineering time, improve operating efficiency; Positioner coordinates without the need to large-scale hoisting machinery in the accurate adjustment process of beam body cable guide pipe, saves manpower and equipment investment.For adopting bolt between the upper frame of accurate adjustment beam body cable guide pipe locus and lower frame, after beam body cable guide pipe has been located, upper frame is dismountable and reuse, and decreases positioner processing input amount.
The features such as three-dimensional group box-like cable-stayed bridge body cable guide pipe accurate positioning device has that precision is high in the construction of beam body cable guide pipe location, speed is fast, manpower and goods and materials less investment, have larger promotion and facilitation to the location construction of raising cable-stayed bridge body cable guide pipe.Meanwhile, for this positioner carry out design research and development innovatively, application study makes this cable guide pipe accurate positioning device have more wide promotional value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is cable guide pipe of the present invention location schematic diagram;
Wherein: 1, lower frame supporting leg, 2, connecting bolt, 3, lower frame underframe, 4, lateral adjustments bar, 5, fixture, 6, regulate screw mandrel, 7, vertical adjustment bar, 8, spandrel girder, 9, upper frame link, 10, reaction frame, 11, beam body cable guide pipe.
Detailed description of the invention
The present embodiment is a kind of three-dimensional group box-like cable-stayed bridge body cable guide pipe accurate positioning device, it comprises, lower frame two parts, described lower frame is by the square of four welding of underframes, square 4 lower ends are provided with and are welded supporting leg 1 by shaped steel, described upper frame is by link 9, vertical and located lateral micromatic setting is formed, described link 9 is the square be welded by four shaped steel, described vertical positioning trimming device is made up of two vertical adjustment bars 7 and spandrel girder 8, described located lateral micromatic setting is formed primarily of two lateral adjustments bars 4 and fixture 5, five L-type reaction frames 10 of equidistant arrangement are welded with on the left of upper frame, in reaction frame 10 back, upper end is welded with underframe, two L-type reaction frames 10 of 180 ° of turning clockwise are welded with respectively between second and the 3rd reaction frame 10, two reaction frames 10 are welded with lateral adjustments bar 4 respectively herein, the other end of lateral adjustments bar 4 is connected with fixture 5 by welding, described fixture 5 two ends are provided with the adjustment screw mandrel 6 of adjustment clamp jaw width, described upper frame link 9 is welded with two vertical adjustment bars 7, two described vertical adjustment bars 7 are welded with spandrel girder 8.Described lower frame is that cable guide pipe 11 locates permanent structure, and upper frame has been built rear dismounting in beam body concrete and can have been reused.
Machining 3 D combined type oblique pull bridge cable guide pipe accurate positioning device in advance at the construction field (site), cable guide pipe 11 is first mounting and positioning device lower frame before constructing, and adopts connecting bolt 2 to be connected between upper frame with lower frame.Lifting cable guide pipe puts into locating rack, and carries out just location.After first location completes, cable guide pipe upper end is shelved on the spandrel girder 8 of vertical positioning trimming device; By the fixture 5 regulating screw mandrel 6 to adjust located lateral micromatic setting, cable guide pipe is clamped.Rotating vertical adjusts cable guide pipe mouth of pipe absolute altitude to design attitude to adjusting rod 7; Rotate lateral adjustments bar 4, provided support by reaction frame 10, regulate cable guide pipe orifice plane to design attitude.Weld type steel frame antilift wire catheter position, the bolt in releasing between lower frame connects.Lower frame is that cable guide pipe locates permanent structure, accurately locate for cable guide pipe and the upper frame that adjusts remove after can reuse, complete the accurate position fixing process of cable guide pipe.
Claims (3)
1. a three-dimensional group box-like cable-stayed bridge body cable guide pipe localization method, it is characterized in that: concrete localization method has following steps: (1) is also fixing according to beam body cable guide pipe design attitude mounting and positioning device lower frame, upper frame is positioned on lower frame, after exactitude position, with bolts therebetween, described lower frame is by the square of four welding of underframes, square 4 lower ends are provided with the supporting leg be welded by shaped steel, described upper frame is by link, vertical and located lateral micromatic setting is formed, described link is the square be welded by four shaped steel, described vertical positioning trimming device is made up of two vertical adjustment bars and top spandrel girder, described located lateral micromatic setting is formed primarily of two lateral adjustments bars and front end fixture, five L-type reaction frames of equidistant arrangement are welded with on the left of upper frame, in reaction frame back, upper end is welded with underframe, two L-type reaction frames of 180 ° of turning clockwise are welded with respectively between second and the 3rd reaction frame, two reaction frames are welded with lateral adjustments bar respectively herein, the other end of lateral adjustments bar is connected with fixture by welding, described fixture two ends are provided with the adjustment screw mandrel of adjustment clamp jaw width, described upper frame link is welded with two vertical adjustment bars, two described vertical adjustment bars are welded with spandrel girder,
(2) lift cable guide pipe and put into locating rack, mouth at the bottom of cable guide pipe is carried out exactitude position, and carries out the cable guide pipe mouth of pipe and just locate;
(3) after the cable guide pipe mouth of pipe has just been located, be shelved on cable guide pipe upper end on the spandrel girder of vertical positioning trimming device, cable guide pipe clamps by the adjustment screw mandrel of adjustment located lateral micromatic setting front end fixture;
(4) measure cable guide pipe mouth of pipe actual elevation, and calculate actual measurement absolute altitude and design elevation deviation, regulate cable guide pipe mouth of pipe absolute altitude to design attitude by vertical positioning trimming device;
(5) after cable guide pipe mouth of pipe vertical adjustment completes, measure cable guide pipe orifice plane coordinate, and calculate Measured Coordinates and design grid deviation, rotate lateral adjustments bar, and provided support by reaction frame, regulate cable guide pipe orifice plane to design attitude;
(6) measure cable guide pipe mouth of pipe three-dimensional coordinate, if Measured Coordinates transfinites with design grid deviation, then repeat (4), (5) step, until deviation is in allowed band;
(7) weld type steel frame antilift wire catheter position, removes cable guide pipe positioner upper frame, completes the accurate position fixing process of cable guide pipe.
2. three-dimensional group according to claim 1 box-like cable-stayed bridge body cable guide pipe localization method, is characterized in that: the connecting bolt four described underframe being respectively equipped with equidistant arrangement.
3. three-dimensional group according to claim 1 box-like cable-stayed bridge body cable guide pipe localization method, it is characterized in that: four described underframe and link along bridge to length slightly larger than cable beam anchoring block length, size range is between 1.8m ~ 2.8m, direction across bridge width is slightly less than cable beam anchoring block width, size range is between 1.0m ~ 1.2m, the supporting leg bottom discrepancy in elevation that square 4 lower ends are welded by shaped steel should be determined according to skew web plate gradient, short supporting leg length range is between 0.3 ~ 0.5m, described located lateral micromatic setting adjusting rod length is 0.6m, can range of lateral adjustment be 0.3m, described vertical positioning trimming device adjusting rod length is 1.0m, and adjustable length is 0.5m, and top spandrel girder length range is between 1.0m ~ 1.2m, and five L-type reaction frames of the equidistant arrangement welded on the left of described upper frame are highly 0.3m.
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| CN201310077928.5A CN103132455B (en) | 2013-03-12 | 2013-03-12 | Three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device and positioning method |
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| CN201310077928.5A CN103132455B (en) | 2013-03-12 | 2013-03-12 | Three-dimensional combined type cable-stayed bridge body cable duct accurate positioning device and positioning method |
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| CN103132455B true CN103132455B (en) | 2015-06-10 |
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| CN110241735B (en) * | 2019-06-14 | 2024-02-27 | 中铁大桥局集团第一工程有限公司 | Positioning and adjusting device and method for main tower cable guide pipe of cable-stayed bridge |
| CN110553127A (en) * | 2019-08-15 | 2019-12-10 | 中铁上海工程局集团有限公司 | Adjustable support device and use method thereof |
| CN112609576B (en) * | 2020-11-19 | 2022-05-31 | 中铁二局集团有限公司 | Method and device for positioning and installing spatial attitude of stay cable guide pipe |
| CN113481868B (en) * | 2021-07-30 | 2022-07-26 | 中国建筑第八工程局有限公司 | Cableway positioning device and method with anchor point adjusting structure for cable-stayed bridge |
| CN114000411B (en) * | 2021-11-16 | 2023-04-18 | 中铁七局集团有限公司 | Cable-stayed bridge cable guide pipe positioning method |
| 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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| CN203160133U (en) * | 2013-03-12 | 2013-08-28 | 中铁四局集团第二工程有限公司 | Three-dimensional combined accurate positioning device for stayed-cable bridge body cable duct |
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Patent Citations (6)
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| JPH1113016A (en) * | 1997-06-26 | 1999-01-19 | Kumagai Gumi Co Ltd | Tensioning platform of diagonal of cable stayed bridge |
| CN1339634A (en) * | 2000-08-24 | 2002-03-13 | 湖南省公路桥梁建设总公司 | Measuring and positioning method for stayed-cable steel sleeve of stayed-cable bridge |
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Owner name: CHINA RAILWAY CORPORATION Free format text: FORMER OWNER: NO.2 ENGINEERING CO., LTD., ZHONGTIE NO.4 BUREAU GROUP Effective date: 20150615 Owner name: CHINA TIESIJU CIVIL ENGINEERING GROUP CO., LTD. NO Effective date: 20150615 |
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Effective date of registration: 20150615 Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Patentee after: CHINA RAILWAY CORPORATION Patentee after: China Tiesiju Civil Engineering Group Co., Ltd. Patentee after: No.2 Engineering Co., Ltd., Zhongtie No.4 Bureau Group Address before: Li River Road, Xiangcheng Economic Development Zone, Suzhou City, Jiangsu Province, No. 9 215131 Patentee before: No.2 Engineering Co., Ltd., Zhongtie No.4 Bureau Group |