CN108731598A - Matching girder segment localization method based on distance controlling - Google Patents
Matching girder segment localization method based on distance controlling Download PDFInfo
- Publication number
- CN108731598A CN108731598A CN201810496643.8A CN201810496643A CN108731598A CN 108731598 A CN108731598 A CN 108731598A CN 201810496643 A CN201810496643 A CN 201810496643A CN 108731598 A CN108731598 A CN 108731598A
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- matching
- girder segment
- distance
- method based
- precast
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning
Abstract
The present invention relates to a kind of in the precast of segmental beam by short line method matching girder segment localization method based on distance controlling, by measuring matching girder segment outermost 4 characteristic points and close 12 distances matched on the section of girder segment between outermost 4 characteristic points of fixing end mould on the section of fixing end mould in real time, determine the relative tertiary location of matching girder segment and fixing end mould, to accurately control the position of matching girder segment, construction lofting is carried out.This method avoid error and people caused by measuring tower sedimentation or other place reasons to improve location efficiency because of error, save labour cost, improve economy.
Description
Technical field
The present invention relates to technical field of bridge engineering, and distance is based in precast of segmental beam by short line method more particularly, to one kind
The matching girder segment localization method of control.
Background technology
Currently, precast of segmental beam by short line method assembling technique has obtained wide application in China, due to short-term
The prefabricated each pedestal of method only pours a segment every time, a line style control when Important Problems in the technology are that prefabricated
System, outstanding behaviours be that matching beam section is accurately positioned problem.Existing matching beam location method is mostly fixed using control point coordinates
Position, that is, build two fixed measurement towers, and built-in total powerstation observes the matching pre-buried control in girder segment upper surface by survey crew
The coordinate of point is accurately positioned.
Using column foot is measured, in the localization method of coordinate control, there are many problems, such as：Measuring the sedimentation of tower can seriously do
Disturb positioning accuracy, survey crew's work mistake can caused by people because of error, survey crew observe repeatedly the time cost that brings with
And along with great number labour cost etc. caused by artificial high-acruracy survey.If position fixing process automated as far as possible, essence
Simplify, then can effectively solve the above problems.
Invention content
The purpose of the invention is to overcome the people for measuring tower sedimentation in existing method and being difficult to control, occurring in measurement process
The shortcomings of great number time brought by error and manual measurement and monetary cost, provide it is a kind of have higher precision, it is more efficient,
The localization method of the more economical matching girder segment based on distance controlling.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of matching girder segment localization method in precast of segmental beam by short line method based on distance controlling, by measuring in real time
Multigroup distance between points accurately controls the position of matching girder segment, carries out construction lofting.
Specifically：By measuring matching girder segment outermost 4 characteristic points on the section of fixing end mould in real time
With fixing end mould close to 12 distances matched on the section of girder segment between outermost 4 characteristic points, matching girder segment is determined
With the relative tertiary location of fixing end mould construction lofting is carried out to accurately control the position of matching girder segment.
12 distances be 4 characteristic points on fixing end mould respectively each point with match on girder segment with this feature
The distance of the corresponding characteristic point of point and other 2 adjacent feature points.
The equipment of real-time measurement distance uses photogrammetric equipment or laser range finder.
Carry out construction lofting method be：The position that matching girder segment is adjusted by hydraulic jack, until the distance
And the deviation of Distance Theory value is within allowable range.
The error transfer factor that the Distance Theory value pours beam section before is calculated.
Present invention employs the principles that degree of freedom is constrained in basic mechanical concept, and fixing end mould and matching girder segment are considered as
Rigid body, point is equivalent to the chain bar constraint being applied between the two at a distance from point between the two for control；Due to during practice of construction
The position of fixing end mould is fixed, is equivalent to and is consolidated with the earth, then often limits a distance and be equivalent to matching beam section
The rigid motion degree of freedom of section reduces 1；Rigid body moves in space shares 9 degree of freedom, then by limiting 9 specific controls
Distance can Complete Bind live match girder segment spatial position.To increase the systematicness of precision and measurement, 12 are had chosen altogether
Command range.
Compared with prior art, the present invention has the following advantages and beneficial effects：
It is positioned using distance measurement method, controls fixing end mould and the intersegmental relative coordinate of matching beam (distance),
Avoid the error caused by measuring tower sedimentation or other place reasons；
It is observed into row distance using photogrammetric/laser range finder, observed result can be automatically derived by pertinent instruments, avoided
People in observation process is because of error；
It is observed into row distance using photogrammetric/laser range finder, process is concise, can obtain distance values in real time, carry
High location efficiency；
It is observed into row distance using photogrammetric/laser range finder, the great number saved needed for artificial accurate measurement is artificial
Take, economy is promoted.
Description of the drawings
Fig. 1：Fixing end mould with match girder segment and testing distance spatial position axonometric schematic diagram；
Fig. 2：Three command range schematic diagrames being connected with characteristic point A；
Fig. 3：Three command range schematic diagrames being connected with characteristic point B；
Fig. 4：Three command range schematic diagrames being connected with characteristic point C；
Fig. 5：Three command range schematic diagrames being connected with characteristic point D；
A, B, C, D are four characteristic points on fixing end mould in figure；E, F, G, H are four features matched on girder segment
Point；1-12 is the command range for needing to measure.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
A kind of matching girder segment localization method in precast of segmental beam by short line method based on distance controlling, as shown in Figure 1, logical
It crosses and measures matching girder segment outermost 4 characteristic points (point E, F, G, H) and fixing end on the section of fixing end mould in real time
12 distances (distance 1-12) of the mould between outermost 4 characteristic points (point A, B, C, D) on the section of matching girder segment, really
Surely the relative tertiary location for matching girder segment and fixing end mould carries out construction and puts to accurately control the position of matching girder segment
Sample.
12 command ranges are as Figure 2-Figure 5, be 4 characteristic points on fixing end mould respectively each point with
With on girder segment at a distance from the corresponding characteristic point of this feature point and other 2 adjacent feature points, i.e. AE, AF, AH, BF,
BE, BG, CG, CF, CH, DH, DE, DG.
When carrying out the construction lofting, according to the error transfer factor for pouring beam section before be calculated 12 control away from
From theoretical value, then by hydraulic jack adjust matching girder segment position, while use photogrammetric equipment or laser
Rangefinder is measured in real time；First according to 1 shown in Fig. 1,4,7,10 4 distances substantially adjust and match girder segment and fixation
Then the distance for holding mould is further continued for intense adjustment and matches girder segment position to 12 command ranges and Distance Theory value
Deviation completes construction layout within equal allowable range.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be the present invention's
Within protection domain.
Claims (6)
1. a kind of matching girder segment localization method in precast of segmental beam by short line method based on distance controlling, which is characterized in that logical
After measuring multigroup distance between points in real time, the position of matching girder segment is accurately controlled, carries out construction lofting.
2. the matching girder segment positioning side according to claim 1 in precast of segmental beam by short line method based on distance controlling
Method, which is characterized in that by measure in real time matching girder segment on the section of fixing end mould outermost 4 characteristic points with it is solid
12 distances of the fixed end mould on the section of matching girder segment between outermost 4 characteristic points, determine matching girder segment with it is solid
The relative tertiary location of fixed end mould carries out construction lofting to accurately control the position of matching girder segment.
3. the matching girder segment positioning side according to claim 2 in precast of segmental beam by short line method based on distance controlling
Method, which is characterized in that 12 distances be 4 characteristic points on fixing end mould respectively each point with match on girder segment and
The distance of the corresponding characteristic point of this feature point and other 2 adjacent feature points.
4. the matching girder segment positioning according to claim 1 or 2 in precast of segmental beam by short line method based on distance controlling
Method, which is characterized in that the equipment of real-time measurement distance uses photogrammetric equipment or laser range finder.
5. the matching girder segment positioning according to claim 1 or 2 in precast of segmental beam by short line method based on distance controlling
Method, which is characterized in that the method for carrying out construction lofting is：The position that matching girder segment is adjusted by hydraulic jack, until institute
The deviation of the distance and Distance Theory value stated is within allowable range.
6. the matching girder segment positioning side according to claim 5 in precast of segmental beam by short line method based on distance controlling
Method, which is characterized in that the error transfer factor that the Distance Theory value pours beam section before is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496643.8A CN108731598B (en) | 2018-05-22 | 2018-05-22 | Matched beam section positioning method based on distance control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810496643.8A CN108731598B (en) | 2018-05-22 | 2018-05-22 | Matched beam section positioning method based on distance control |
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| Publication Number | Publication Date |
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| CN108731598A true CN108731598A (en) | 2018-11-02 |
| CN108731598B CN108731598B (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810496643.8A Active CN108731598B (en) | 2018-05-22 | 2018-05-22 | Matched beam section positioning method based on distance control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680615A (en) * | 2018-12-30 | 2019-04-26 | 广东瀚阳轨道信息科技有限公司 | The three-dimensional coordinate measurement construction method of short line casting beam sections |
| CN109750603A (en) * | 2019-01-26 | 2019-05-14 | 中铁三局集团广东建设工程有限公司 | The Geometry monitoring system and monitoring method constructed in conjunction with segment girder construction short line casting |
| CN110374005A (en) * | 2019-07-11 | 2019-10-25 | 中铁大桥科学研究院有限公司 | Bridge subsection short-line prefabrication matches marching method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762883A (en) * | 2015-04-28 | 2015-07-08 | 河海大学 | Matching measurement method used during bridge precasting with stud matching method |
| CN106436579A (en) * | 2016-08-25 | 2017-02-22 | 中铁二十三局集团轨道交通工程有限公司 | Linear control method and linear control device for sectional beam with specially-shaped cross section through short-line pedestal matching method |
-
2018
- 2018-05-22 CN CN201810496643.8A patent/CN108731598B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762883A (en) * | 2015-04-28 | 2015-07-08 | 河海大学 | Matching measurement method used during bridge precasting with stud matching method |
| CN106436579A (en) * | 2016-08-25 | 2017-02-22 | 中铁二十三局集团轨道交通工程有限公司 | Linear control method and linear control device for sectional beam with specially-shaped cross section through short-line pedestal matching method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680615A (en) * | 2018-12-30 | 2019-04-26 | 广东瀚阳轨道信息科技有限公司 | The three-dimensional coordinate measurement construction method of short line casting beam sections |
| CN109750603A (en) * | 2019-01-26 | 2019-05-14 | 中铁三局集团广东建设工程有限公司 | The Geometry monitoring system and monitoring method constructed in conjunction with segment girder construction short line casting |
| CN110374005A (en) * | 2019-07-11 | 2019-10-25 | 中铁大桥科学研究院有限公司 | Bridge subsection short-line prefabrication matches marching method |
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| CN108731598B (en) | 2022-10-25 |
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