CN102828470A - Method for locating main girder cable sleeve of cable-stayed bridge - Google Patents
Method for locating main girder cable sleeve of cable-stayed bridge Download PDFInfo
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- CN102828470A CN102828470A CN2012103253972A CN201210325397A CN102828470A CN 102828470 A CN102828470 A CN 102828470A CN 2012103253972 A CN2012103253972 A CN 2012103253972A CN 201210325397 A CN201210325397 A CN 201210325397A CN 102828470 A CN102828470 A CN 102828470A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000004873 anchoring Methods 0.000 claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 9
- 238000013461 design Methods 0.000 claims abstract description 5
- 230000004807 localization Effects 0.000 claims description 11
- 238000009415 formwork Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The invention discloses a method for locating a main girder cable sleeve of a cable-stayed bridge. The method comprises the steps of: (1) manufacturing a tooth block model for anchoring according to the physical dimension of a tooth block anchoring model; (2) fixing the tooth block anchoring model on the surface of a main girder bottom template according to the locating coordinate of a cable anchor point; (3) welding the lower end of the cable sleeve on an anchor plate, and fixing the anchor plate on the inclined plane of the tooth block anchoring model; and (4) manufacturing a cable sleeve embedded bracket to support the cable sleeve below the cable sleeve, thus enabling the angle and direction of the cable sleeve and the deviation of the cable sleeve along the bridge direction completely to accord with the design and specification requirement. The angle of the cable sleeve is ensured by adopting the cable sleeve embedded bracket; the construction method is simple; the calculation and the welding do not occupy the time limit for the project; and the installation is simple; time and effort are saved, and a lot of technicists and devices are saved.
Description
Technical field
The present invention relates to the CONSTRUCTION OF CABLE-STAYED BRIDGE technical field, relate in particular to a kind of localization method of cable-stayed bridge main-beam cable sleeve.
Background technology
In the prior art, when building cable stayed bridge, location, the angle of inclination of the noose pipe of girder drag-line is crucial construction link.Deviation is arranged slightly, can cause the friction of drag-line and noose tube edges, be easy to damage drag-line and form hidden danger into major accident.
Traditional method comes sleeve pipe is carried out measurement and positioning with string of a musical instrument method, and its way is:
At first work out corresponding positioning relation tables of data according to design drawing and position control method; These data mainly contain pipe range, noose tube hub line horizontal projection and X, Y axle clamp angle and noose tube hub line and Z axle clamp angle, push up the three-dimensional coordinate of end mouth, go out to push up the distance of Di Kou center to the vertical reference face and the string of a musical instrument according to these data computation.
The location of noose pipe is to carry out Primary Location earlier on ground; Accurately locate at the scene then; On-the-spot location mainly is that the mark of measuring the axis is put in the top at the center line stiff skeleton, the position of bottom surface corresponding height; On mark, straining the string of a musical instrument then, is benchmark with the string of a musical instrument, carries out the plane positioning of noose pipe with the invar tape span; Elevation location directly causes bench level on the top rail on certain datum with the level method, measures the center elevation of noose Guan Dingkou and end mouth again with vertical span method.Through adjustment repeatedly, after X, Y, Z were all qualified, just finished this cableway location.But, after the welding of noose pipe is fixing, also should checks and check position dimension accurately in order to ensure workmanship.The method need all want survey crew to cooperate in X, Y, the Z-direction of bridge, and to adjust repeatedly compound, and receive high temperature, strong wind easily, weather effect such as rain.
Though relatively accurately, poor reliability, efficient are low, need repeatedly repeat to set up instrument on the precision of string of a musical instrument method location, and account for and need great amount of time and personnel to cooperate, complicacy is installed, and in the influence that receives weather easily.
Summary of the invention
The technical problem that the present invention will solve provides a kind of localization method of cable-stayed bridge main-beam cable sleeve.
In order to solve the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of localization method of cable-stayed bridge main-beam cable sleeve may further comprise the steps:
(1) according to the given drag-line elements of a fix system and the positional parameter table of drag-line, calculate the physical dimension of anchoring tooth block models, field lofting is assembled into anchoring tooth block models with plank then;
(2) complete girder bed die and reinforcing, emit the center line and the side form line of girder, according to the elements of a fix of anchor-hold point, the physical location of the anchoring tooth block models that on girder soffit formwork face, marks is fixed on anchoring tooth block models on this physical location again;
(3) the pre-buried location of form anchor and noose pipe: the welding of the lower end of form anchor and noose pipe, unwrapping wire goes out drag-line fixed end form anchor and is used for fixing the physical location line of the locating hole of form anchor on anchoring tooth block models; In order to prevent form anchor downslide displacement, be provided with the through hole that is used to locate in the bottom of form anchor, and form anchor be fixed on the anchoring tooth block models with bolt;
(4) calculate the pre-buried support of noose pipe that making is used to control pre-buried noose tube angulation according to the angle of inclination of noose pipe; The pre-buried support of noose pipe is arranged on the below of noose pipe and holds the noose pipe, makes noose tube angulation, direction and noose pipe meet design and code requirement fully in along the bridge deviation.
As preferably, the pre-buried support of noose pipe is processed with the reinforcing bar welding.
The invention has the beneficial effects as follows:
Adopt the pre-buried support of noose pipe to guarantee the angle of noose pipe, job practices is simple, calculates and weld not take the duration, installs simply, and is time saving and energy saving, practices thrift a large amount of technician and equipment.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Fig. 1 is the structural representation of girder behind the pre-buried noose pipe of the localization method embodiment of cable-stayed bridge main-beam cable sleeve of the present invention.
Fig. 2 is the template mounting structure sketch map of the localization method embodiment of cable-stayed bridge main-beam cable sleeve of the present invention.
Fig. 3 is the structural representation of the localization method embodiment cable sleeve support of cable-stayed bridge main-beam cable sleeve of the present invention.
Fig. 4 is the girder anchoring tooth piece setting-out size of the localization method embodiment of cable-stayed bridge main-beam cable sleeve of the present invention.
Among the figure, 1-girder drag-line, 2-noose pipe, the 3-anchored end, 4-profile of tooth space, the 5-girder, the 6-soffit formwork, 7-anchoring tooth block models, the 8-form anchor, the 9-bolt, S1, S2 ..., S12-girder drag-line numbering.
The specific embodiment
Below for building the embodiment of certain Safari Park sightseeing bridge, this bridge is a cable stayed bridge, king-tower through 12 steel girder drag-line S1, S2 ..., S12 is connected with girder.As shown in Figure 1, the anchored end 3 of every girder drag-line 1 all is to pass noose pipe 2 pre-buried in the girder 5 and be anchored at the girder bottom surface in the profile of tooth space 4 of girder indent.The angle of inclination that every girder guy anchor fixed end and girder bottom surface form is different, and it is consistent with the angle of inclination of drag-line 1 to require to be embedded in the noose pipe 2 at 4 edges, profile of tooth space.
Below be the localization method of noose pipe:
1, according to the drag-line elements of a fix system that provides on the drawing and the positional parameter table of drag-line, can calculate the physical dimension (as shown in Figure 4) of anchoring tooth block models.During processing and fabricating, carry out the scene in strict accordance with the dimension of picture among Fig. 4 and amplify appearance, manufacture anchoring tooth block models with wooden form then.
2, complete the girder soffit formwork and reinforce after; Emit the center line and the side form line of beam; The elements of a fix according to the anchor-hold point on the anchoring tooth block models; The physical location of the anchoring tooth block models that unwrapping wire goes out on girder soffit formwork 6 plate faces is fixed on anchoring tooth block models on the girder soffit formwork according to the size positions that is marked again, so promptly is provided with the profile of tooth space that the guy anchor fixed end is installed with anchoring tooth block models in the girder bottom.
3, the pre-buried location of form anchor and noose pipe
In Fig. 2, form anchor 8 welds with the lower end of noose pipe 2, becomes a single piece.On anchoring tooth block models 7, mark form anchor 8 and be used for fixing the physical location line of the locating hole of form anchor.In order to prevent form anchor 2 and pre-buried noose pipe 2 downslide displacements, be provided with in the bottom of form anchor 2 two with the corresponding through hole of locating hole, pass locating hole with bolt 9 again and through hole is fixed on form anchor 8 on the inclined-plane of anchoring tooth block models 7.For the angle of inclination of control cord sleeve pipe better; Noose pipe holder 10 is arranged on the soffit formwork 6 of girder; And below noose pipe 10, hold noose pipe 2, make angle of inclination, direction and the noose pipe of noose pipe meet design and code requirement fully in along the bridge deviation.
The structure of noose pipe holder 10 is as shown in Figure 2, and the concrete size of noose pipe holder is seen table 1.The wherein angle of inclination and the carriage height of the oblique support of a, b decision carriage, h be the noose pipe go out the rope open height.The noose pipe holder adopts the welding of Φ 20 reinforcing bars to process.
The blank size of table 1 Steel bar rack
4, prop up the template (being anchoring tooth block models) in good above-mentioned girder template and profile of tooth space after; At girder template laid inside reinforcing bar; Last fluid concrete; Deng dismounting girder template and anchoring tooth block models, the profile of tooth space structures that is embedded with the noose pipe that promptly demonstrates in the girder bottom is to be used to install the anchored end of girder drag-line.
Present embodiment adopts the noose pipe holder to guarantee the angle of inclination of noose pipe, compares with the control of traditional strings collimation method, and advantage is quick construction; Install simple; Time saving and energy saving, the calculating of technician that need not be a large amount of and equipment, particularly stent size and welding production can carry out in advance; Do not take the duration, for the project duration has been practiced thrift the time.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (2)
1. the localization method of a cable-stayed bridge main-beam cable sleeve may further comprise the steps:
(1) according to the given drag-line elements of a fix system and the positional parameter table of drag-line, calculate the physical dimension of anchoring tooth block models, field lofting is assembled into anchoring tooth block models with plank then;
(2) complete girder bed die and reinforcing, emit the center line and the side form line of girder, according to the elements of a fix of anchor-hold point, the physical location of the anchoring tooth block models that on girder soffit formwork face, marks is fixed on anchoring tooth block models on this physical location again;
(3) the pre-buried location of form anchor and noose pipe: the welding of the lower end of form anchor and noose pipe, unwrapping wire goes out drag-line fixed end form anchor and is used for fixing the physical location line of the locating hole of form anchor on anchoring tooth block models; In order to prevent form anchor downslide displacement, be provided with the through hole that is used to locate in the bottom of form anchor, and form anchor be fixed on the anchoring tooth block models with bolt;
(4) calculate the pre-buried support of noose pipe that making is used to control pre-buried noose tube angulation according to the angle of inclination of noose pipe; The pre-buried support of noose pipe is arranged on the below of noose pipe and holds the noose pipe, makes noose tube angulation, direction and noose pipe meet design and code requirement fully in along the bridge deviation.
2. girder cable sleeve localization method according to claim 1 is characterized in that: the pre-buried support of said noose pipe is processed with the reinforcing bar welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210325397.2A CN102828470B (en) | 2012-09-05 | 2012-09-05 | Method for locating main girder cable sleeve of cable-stayed bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210325397.2A CN102828470B (en) | 2012-09-05 | 2012-09-05 | Method for locating main girder cable sleeve of cable-stayed bridge |
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| CN102828470A true CN102828470A (en) | 2012-12-19 |
| CN102828470B CN102828470B (en) | 2014-06-11 |
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| CN201210325397.2A Expired - Fee Related CN102828470B (en) | 2012-09-05 | 2012-09-05 | Method for locating main girder cable sleeve of cable-stayed bridge |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114528A (en) * | 2013-02-04 | 2013-05-22 | 中天建设集团有限公司 | Viaduct inclined web positioning and formwork-supporting tool |
| 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 |
| CN106948272A (en) * | 2017-05-04 | 2017-07-14 | 吴思明 | A kind of Cable stayed Bridge Main Tower noose pipe installs surveying and locating locator |
| CN109376391A (en) * | 2018-09-20 | 2019-02-22 | 中国铁路设计集团有限公司 | A kind of tooth block design method based on BIM |
| 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 |
| CN109505260A (en) * | 2018-12-25 | 2019-03-22 | 中铁大桥局第七工程有限公司 | A kind of positioning device and localization method of finished main cable shape of self-anchored suspension anchor tube |
| CN109629395A (en) * | 2019-02-02 | 2019-04-16 | 中铁十五局集团第工程有限公司 | A kind of the limit V-type snap-gauge and application method of the positioning of concrete inclined cable conduit |
| CN111663428A (en) * | 2020-06-24 | 2020-09-15 | 中铁二院工程集团有限责任公司 | Negative inhaul cable suspension bridge |
| CN112069583A (en) * | 2020-09-08 | 2020-12-11 | 中国十七冶集团有限公司 | Oblique cantilever safe and intelligent construction system and method for finite element synchronous analysis |
| CN112609576A (en) * | 2020-11-19 | 2021-04-06 | 中铁二局集团有限公司 | Method and device for positioning and installing spatial attitude of stay cable guide pipe |
| CN112813833A (en) * | 2020-12-31 | 2021-05-18 | 中交路桥华南工程有限公司 | Installation method of cableway pipe |
| CN113481868A (en) * | 2021-07-30 | 2021-10-08 | 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 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114528A (en) * | 2013-02-04 | 2013-05-22 | 中天建设集团有限公司 | Viaduct inclined web positioning and formwork-supporting tool |
| 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 |
| 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 |
| CN106948272A (en) * | 2017-05-04 | 2017-07-14 | 吴思明 | A kind of Cable stayed Bridge Main Tower noose pipe installs surveying and locating locator |
| CN109376391A (en) * | 2018-09-20 | 2019-02-22 | 中国铁路设计集团有限公司 | A kind of tooth block design method based on BIM |
| CN109505260A (en) * | 2018-12-25 | 2019-03-22 | 中铁大桥局第七工程有限公司 | A kind of positioning device and localization method of finished main cable shape of self-anchored suspension anchor tube |
| CN109629395B (en) * | 2019-02-02 | 2024-02-02 | 中铁十五局集团第一工程有限公司 | Limiting V-shaped clamping plate for positioning concrete stay cable guide pipe and use method |
| CN109629395A (en) * | 2019-02-02 | 2019-04-16 | 中铁十五局集团第工程有限公司 | A kind of the limit V-type snap-gauge and application method of the positioning of concrete inclined cable conduit |
| CN111663428A (en) * | 2020-06-24 | 2020-09-15 | 中铁二院工程集团有限责任公司 | Negative inhaul cable suspension bridge |
| CN112069583B (en) * | 2020-09-08 | 2023-10-20 | 中国十七冶集团有限公司 | Finite element synchronous analysis inclined cantilever safe intelligent construction system and method |
| CN112069583A (en) * | 2020-09-08 | 2020-12-11 | 中国十七冶集团有限公司 | Oblique cantilever safe and intelligent construction system and method for finite element synchronous analysis |
| CN112609576A (en) * | 2020-11-19 | 2021-04-06 | 中铁二局集团有限公司 | Method and device for positioning and installing spatial attitude of stay cable guide pipe |
| CN112813833A (en) * | 2020-12-31 | 2021-05-18 | 中交路桥华南工程有限公司 | Installation method of cableway pipe |
| CN112813833B (en) * | 2020-12-31 | 2022-12-27 | 中交路桥华南工程有限公司 | Installation method of cableway pipe |
| CN113481868A (en) * | 2021-07-30 | 2021-10-08 | 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 |
| 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 |
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