CN108625296A - One kind installing linear control method for precast segment bridge - Google Patents
One kind installing linear control method for precast segment bridge Download PDFInfo
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- CN108625296A CN108625296A CN201810673199.2A CN201810673199A CN108625296A CN 108625296 A CN108625296 A CN 108625296A CN 201810673199 A CN201810673199 A CN 201810673199A CN 108625296 A CN108625296 A CN 108625296A
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- beam sections
- measuring point
- coordinate
- piece
- sections
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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to one kind installing linear control method for precast segment bridge, after the completion of segment girder precast, installs measuring point, measures coordinate of the measuring point under factory's coordinate system, converted by coordinate, measuring point coordinate of the beam sections under mounting coordinate system is calculated；After first beam sections is installed, measures measuring point coordinate and verified with the coordinate being calculated, ensure error≤± 2mm, first beam sections is fixed temporarily with pier top block；According to it is existing it is linear carry out Coordinates after installation is complete in three pieces beam sections, measure the mounting coordinate of third piece beam sections, compared with the measuring point coordinate for calculating third piece beam sections, if the error of third piece beam sections>± 2mm, first beam of releasing are fixed temporarily, and realize that the unitary rotation of three pieces beam sections retightens first beam sections in error≤± 2mm of third piece beam sections.The method of the present invention can effectively reduce the frequency of use of gasket, can improve the durability of seam with the construction quality of control joint.
Description
Technical field
The present invention relates to method for bridge construction, and linear controlling party is installed for precast segment bridge more particularly, to one kind
Method.
Background technology
Measurement error can not completely eliminate in being positioned due to reference block, if there are still larger spaces after carrying out positioning adjustment
Position deviation can cause follow-up beam section to install linear deviation and persistently amplify.The method used in traditional beam section alignment control
It is to increase gasket after the completion of a piece of erection in seam crossing and adjusted into line displacement, after meeting needs, then carry out down a piece of beam
Assembly.But such method is related to the problem of gasket usage quantity, not only influences the construction quality and durability of seam, goes back shadow
Ring construction efficiency.
Invention content
The purpose of the present invention installs linear offset to control precast segment beam, and provides a kind of for precast segment bridge
Linear control method is installed.
Since when carrying out beam sections positioning, measurement error can not completely eliminate, and there are still larger space positions after positioning
Deviation, therefore persistently amplify to avoid follow-up beam section from installing linear deviation proposes a kind of erection stage three pieces beam unitary rotation
Method of adjustment is linear to reference block to be optimized, and it is linear to control beam section by three pieces unitary rotation adjusting method.
The purpose of the present invention can be achieved through the following technical solutions：
One kind installing linear control method for precast segment bridge, includes the following steps：
After the completion of segment girder precast, measuring point is installed, coordinate of the measuring point under factory's coordinate system is measured, turned by coordinate
It changes, measuring point coordinate of the beam sections under mounting coordinate system is calculated；
After first beam sections is installed, measures measuring point coordinate and verified with the coordinate being calculated, guarantee error≤±
First beam sections is fixed temporarily by 2mm with pier top block；
According to it is existing it is linear carry out Coordinates after installation is complete in three pieces beam sections, measure the peace of third piece beam sections
Coordinate is filled, is compared with the measuring point coordinate for calculating third piece beam sections, if the error of third piece beam sections>± 2mm releases the
A piece of beam is fixed temporarily, and using first segment in small-size jack top beam-ends face, realizes the unitary rotation of three pieces beam sections,
The error of third piece beam sections≤± 2mm retightens first beam sections.Based on error enlarge-effect, to excessive error into
Row adjustment, the error of coordinate of first beam is necessarily satisfying for requiring at this time.
After first beam sections installation meets needs, first beam sections is fixed temporarily with pier top block, continues to pacify
Second beam sections is filled, is adhesively fixed between second beam sections and first beam sections；Third piece beam sections, third are installed again
It is adhesively fixed between piece beam sections and second beam sections, carries out beam sections installation locking again after Coordinate Adjusting meets needs.
After the completion of segment girder precast, the method for installing measuring point is：6 conventional measuring points are first arranged, in beam sections lateral position
Two newly-increased measuring points are set, and 6 conventional measuring points are located at two middle side parts of beam sections using symmetrical structure setting, beam sections
Three conventional measuring points are respectively provided with per side, three conventional measuring points are located on the same line, and two newly-increased measuring points are located at beam sections
Side is located on the same line with three conventional measuring points of beam sections homonymy.
Two newly-increased measuring points are arranged close to the side of the length direction of beam sections, and the newly-increased specific arrangement principle of measuring point is：Newly
Increase distance of the measuring point apart from the nearest side of beam sections width direction, i.e., vertical bridge to distance be 0.05m≤Dz≤0.10m；It is newly-increased
Distance of the measuring point apart from the nearest side of beam sections length direction, i.e. direction across bridge distance are 0.05m≤Dh≤0.10m.
When carrying out beam sections positioning, local coordinate system is established, arrangement principle is as follows in local coordinate system：
X-axis：Perpendicular to the two pier lines of centres,
Y-axis：The two pier lines of centres are parallel to,
Origin：Set up the nearest pier center line of beam sections reference block.
In the present invention, after carrying out beam sections reference block positioning, since measurement error can not completely eliminate, at first
After the completion of the erection of segment, if error is unsatisfactory for needing, deviation adjusting wouldn't be carried out, three segments are installed according to existing alignment consistency
Duan Liang, is based on error linear amplification principle, the angular errors of first beam sections obtained in third piece beam sections it is greatly enlarged,
The coordinate that adjustment third piece beam sections are rotated using three pieces beam sections global approach, to control the coordinate of preceding two panels beam sections reasonable
In range.
The present invention is to be based on error enlarge-effect to the adjustment of beam sections, by the adjustment to excessive error, come control compared with
The deviation of small error.
Method of adjustment is adjusted using three pieces unitary rotation when beam sections are installed, and can effectively reduce gasket uses frequency
Rate ensures the construction quality and durability of seam.
Compared with prior art, the present invention has the following advantages and beneficial effects：
1, inventive process ensures that error is in smaller range；
2, three pieces beam unitary rotation adjusts, and is conducive to improve working efficiency.
3, reduce gasket usage quantity, control the construction quality and durability of seam..
Description of the drawings
Fig. 1 is the linear deviation floor map of beam section；
Fig. 2 is the linear longitudinal bias schematic diagram of beam section；
Fig. 3 is the linear deviation adjusting schematic diagram of beam section；
Fig. 4 is beam sections point layout schematic diagram.
Specific implementation mode
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
With reference to figure 1, Fig. 2, Fig. 3, one kind being installed linear control method for precast segment bridge, included the following steps：
After the completion of segment girder precast, measuring point is installed, coordinate of the measuring point under factory's coordinate system is measured, converts, be calculated by coordinate
Measuring point coordinate of the beam sections under mounting coordinate system；
After first beam sections 3 is installed, measures measuring point coordinate and verified with the coordinate being calculated, guarantee error≤±
First beam sections 3 is fixed temporarily by 2mm with pier top block 1；
Continue that second beam sections 4 is installed, is adhesively fixed between second beam sections 4 and first beam sections 3；It installs again
Third piece beam sections 5 are adhesively fixed between third piece beam sections 5 and second beam sections 4, according to existing linear in three pieces segment
Beam 3,4,5 carries out Coordinates after installation is complete, measures the mounting coordinate of third piece beam sections 5, and calculates third piece beam sections
5 measuring point coordinate is compared, if the error of third piece beam sections 5>± 2mm, first beam of releasing are fixed temporarily, and utilization is small
Type jack 2 pushes up first 3 end face of beam sections, the unitary rotation of three pieces beam sections 3,4,5 is realized, in third piece beam sections 5
Error≤± 2mm retightens first beam sections 3.
With reference to figure 4, after the completion of segment girder precast, the method for installing measuring point is：First arrange 6 conventional measuring point a b c d e
F, beam sections lateral position be arranged two newly-increased measuring point g h, 6 conventional measuring points are located at segment using symmetrical structure setting
Every side of two middle side parts of beam, beam sections is respectively provided with three conventional measuring points, and three conventional measuring points are located on the same line, two
Newly-increased measuring point is located at the side of beam sections, is located on the same line with three conventional measuring points of beam sections homonymy.Two newly-increased
Measuring point is arranged close to the side of the length direction of beam sections, and the newly-increased specific arrangement principle of measuring point is：Newly-increased measuring point is apart from beam sections
The distance of the nearest side of width direction, i.e., vertical bridge to distance be 0.05m≤Dz≤0.10m；Newly-increased measuring point is apart from segment beam length
The distance of the nearest side in direction is spent, i.e. direction across bridge distance is 0.05m≤Dh≤0.10m.
When carrying out beam sections positioning, local coordinate system is established, arrangement principle is as follows in local coordinate system：X-axis：Perpendicular to
The two pier lines of centres, Y-axis：It is parallel to the two pier lines of centres, origin：Set up the nearest pier center line of beam sections reference block.
In the present invention, after carrying out beam sections reference block positioning, since measurement error can not completely eliminate, at first
After the completion of the erection of segment, if error is unsatisfactory for needing, deviation adjusting wouldn't be carried out, three segments are installed according to existing alignment consistency
Duan Liang, is based on error linear amplification principle, the angular errors of first beam sections obtained in third piece beam sections it is greatly enlarged,
The coordinate that adjustment third piece beam sections are rotated using three pieces beam sections global approach, to control the coordinate of preceding two panels beam sections reasonable
In range.The present invention is to be based on error enlarge-effect to the adjustment of beam sections, smaller to control by the adjustment to excessive error
The deviation of error.Method of adjustment is adjusted using three pieces unitary rotation when beam sections are installed, and can effectively reduce making for gasket
With frequency, ensure the construction quality and durability of seam.
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. one kind installing linear control method for precast segment bridge, which is characterized in that include the following steps：
After the completion of segment girder precast, measuring point is installed, coordinate of the measuring point under factory's coordinate system is measured, is converted by coordinate, counted
Calculation obtains measuring point coordinate of the beam sections under mounting coordinate system；
After first beam sections is installed, measures measuring point coordinate and is verified with the coordinate being calculated, ensure error≤± 2mm,
First beam sections is fixed temporarily with pier top block；
According to it is existing it is linear carry out Coordinates after installation is complete in three pieces beam sections, the installation for measuring third piece beam sections is sat
Mark is compared with the measuring point coordinate for calculating third piece beam sections, if the error of third piece beam sections>± 2mm releases first
Beam is fixed temporarily, and realizes the unitary rotation of three pieces beam sections, in error≤± 2mm of third piece beam sections, retightens the
A piece of beam sections.
2. according to claim 1 a kind of for precast segment bridge installation linear control method, which is characterized in that first
After the installation of piece beam sections meets needs, first beam sections is fixed temporarily with pier top block, continues that second segment is installed
Beam is adhesively fixed between second beam sections and first beam sections；Third piece beam sections are installed again, third piece beam sections and the
It is adhesively fixed between two beam sections, carries out beam sections installation locking again after Coordinate Adjusting meets needs.
3. according to claim 1 a kind of for precast segment bridge installation linear control method, which is characterized in that segment
After the completion of beam prefabricated, the method for installing measuring point is：
It first arranges 6 conventional measuring points, two newly-increased measuring points is set in beam sections lateral position, 6 conventional measuring points are using symmetrical
Structure setting be located at two middle side parts of beam sections, every side of beam sections is respectively provided with three conventional measuring points, three conventional measuring point positions
In on same straight line, two newly-increased measuring points are located at the side of beam sections, are located at three conventional measuring points of beam sections homonymy same
On straight line.
4. according to claim 3 a kind of for precast segment bridge installation linear control method, which is characterized in that two
Newly-increased measuring point is arranged close to the side of the length direction of beam sections, and the newly-increased specific arrangement principle of measuring point is：
Newly-increased distance of the measuring point apart from the nearest side of beam sections width direction, i.e., vertical bridge to distance be 0.05m≤Dz≤
0.10m；
Newly-increased distance of the measuring point apart from the nearest side of beam sections length direction, i.e. direction across bridge distance be 0.05m≤Dh≤
0.10m。
A kind of linear control method being installed for precast segment bridge 5. according to claim 1, which is characterized in that into
When row beam sections position, local coordinate system is established, arrangement principle is as follows in local coordinate system：
X-axis：Perpendicular to the two pier lines of centres,
Y-axis：The two pier lines of centres are parallel to,
Origin：Set up the nearest pier center line of beam sections reference block.
6. according to claim 1 a kind of for precast segment bridge installation linear control method, which is characterized in that utilize
The unitary rotation of three pieces beam sections is realized in first segment in small-size jack top beam-ends face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810673199.2A CN108625296B (en) | 2018-06-26 | 2018-06-26 | Installation linear control method for segmental precast bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810673199.2A CN108625296B (en) | 2018-06-26 | 2018-06-26 | Installation linear control method for segmental precast bridge |
Publications (2)
| Publication Number | Publication Date |
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| CN108625296A true CN108625296A (en) | 2018-10-09 |
| CN108625296B CN108625296B (en) | 2020-01-07 |
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| CN201810673199.2A Active CN108625296B (en) | 2018-06-26 | 2018-06-26 | Installation linear control method for segmental precast bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440648A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | Double wet seam precast segment bridge assembly LFM signal devices |
| CN110777669A (en) * | 2019-11-15 | 2020-02-11 | 中铁北京工程局集团有限公司 | High-speed rail continuous beam short line matching prefabricated cantilever assembly line shape control method |
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| JPH08142034A (en) * | 1994-11-24 | 1996-06-04 | Kumagai Gumi Co Ltd | Automatic control device of form for short line match casting |
| CN102733311A (en) * | 2012-07-02 | 2012-10-17 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Line shape control method for short line method segment prefabrication construction |
| CN104748732A (en) * | 2015-03-26 | 2015-07-01 | 广州瀚阳工程咨询有限公司 | Measurement method for segmental precast bridge erection field |
| CN106223201A (en) * | 2016-07-26 | 2016-12-14 | 中南大学 | The method for correcting error of beam section bridge linear monitoring |
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2018
- 2018-06-26 CN CN201810673199.2A patent/CN108625296B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08142034A (en) * | 1994-11-24 | 1996-06-04 | Kumagai Gumi Co Ltd | Automatic control device of form for short line match casting |
| CN102733311A (en) * | 2012-07-02 | 2012-10-17 | 中铁大桥局集团武汉桥梁科学研究院有限公司 | Line shape control method for short line method segment prefabrication construction |
| CN104748732A (en) * | 2015-03-26 | 2015-07-01 | 广州瀚阳工程咨询有限公司 | Measurement method for segmental precast bridge erection field |
| CN106223201A (en) * | 2016-07-26 | 2016-12-14 | 中南大学 | The method for correcting error of beam section bridge linear monitoring |
Non-Patent Citations (1)
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| 黄跃等: "跨海桥梁超高渐变段预制和安装控制技术", 《中国港湾建设》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440648A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | Double wet seam precast segment bridge assembly LFM signal devices |
| CN110777669A (en) * | 2019-11-15 | 2020-02-11 | 中铁北京工程局集团有限公司 | High-speed rail continuous beam short line matching prefabricated cantilever assembly line shape control method |
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| CN108625296B (en) | 2020-01-07 |
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