CN112726407B - Prefabricated line shape control method matched with prefabricated bridge deck and storage medium - Google Patents

Prefabricated line shape control method matched with prefabricated bridge deck and storage medium Download PDF

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CN112726407B
CN112726407B CN202011571910.7A CN202011571910A CN112726407B CN 112726407 B CN112726407 B CN 112726407B CN 202011571910 A CN202011571910 A CN 202011571910A CN 112726407 B CN112726407 B CN 112726407B
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袁助
程磊科
刘志权
潘鑫
马祖桥
宋军
石雪飞
冷大卫
殷晨昂
刘慧慧
赵金磊
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Anhui Transportation Holding Group Co Ltd
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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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
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    • E01D19/125—Grating or flooring for bridges
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Abstract

The invention relates to a prefabricated linear control method and a storage medium for matching prefabricated bridge decks, wherein the control method comprises the following steps of: s1, measuring the actual length; s2, judging and correcting the reasonability of the measured data; s3, calculating coordinates of positioning points under the prefabricated coordinate system; s4, converting the coordinates into a geodetic coordinate system; s5, calculating a prefabrication instruction; and S6, judging and correcting the rationality of the preset command. The method is based on the short-line method prefabrication matching principle, takes the corresponding judging and correcting modes into consideration when the measured data is unreasonable and the deviation between the prefabrication instruction and the theoretical state is overlarge, effectively improves the reliability of the line shape control of the short-line method prefabricated bridge deck segment, and can be used for guiding the actual project of the bridge deck matching prefabrication.

Description

Prefabricated line shape control method matched with prefabricated bridge deck and storage medium
Technical Field
The invention relates to the field of bridge engineering, in particular to a prefabricated linear control method and a storage medium for matching prefabricated bridge decks.
Background
The prefabrication and assembly technology is one of important directions for the development of bridge engineering in China. The methods of prefabricating bridge segments can be divided into long line methods and short line methods. Compared with a long-line method, the short-line method has strong adaptability and small occupied area, is beneficial to industrial construction, but has stricter requirements on the prefabrication process and quality, and particularly the control of the prefabrication line shape directly influences the bridge forming line shape. At present, certain practical experience has been accumulated in China for the prefabricated linear control method of the short-line method section prefabricated box girder, but in the construction of the prefabricated bridge deck slab, the traditional cast-in-place wet joint connection mode is mainly adopted, and the prefabricated linear control method matched with the prefabricated bridge deck slab lacks relevant mature practice.
The Chinese patent application CN 110374005A discloses a bridge segment short-line method prefabrication matching connection method, firstly, coordinates of each control point are respectively measured after the maintenance of a poured beam segment is finished and when the poured beam segment is used as a matching beam of the next beam segment, and linear centroid coordinates of the control points are calculated; calculating the difference value of the two centroid coordinates to obtain 3 translation degrees of freedom; calculating 3 rotational degrees of freedom by minimizing the comprehensive nominal distance of the control points, and further calculating the coordinate increment generated by the rotational degrees of freedom; and solving the coordinate difference after alignment according to the coordinate increment and the 3 translation degrees of freedom. Chinese patent CN 102733311B discloses a method for controlling the line shape of segment prefabrication construction by a short line method, which calculates the theoretical prefabricated line shape according to a tangent displacement method and establishes a prefabricated line shape overall coordinate system and each prefabricated segment local coordinate system; setting a measuring tower and a target tower, measuring coordinate data of each control point in a local coordinate system, and realizing conversion of the control point coordinates between the local coordinate system and a global coordinate system through matrix calculation; and correcting errors by adopting a nonlinear least square method, and adjusting subsequent line shapes by adopting a direct adjustment method or a segmented adjustment method according to the error magnitude.
In the above patents, the line shape control method is proposed by taking the stub method prefabrication construction of the segment precast box girder as an object, but for the stub method matching prefabrication of the bridge deck slab, the method has poor applicability, and the methods of data measurement and error correction are complex, so that it is difficult to guide the engineering practice of the stub method prefabrication of the bridge deck slab. In addition, in the above patent, the data that prefabricated segment needs to be measured are three-dimensional coordinate data, need accurate total powerstation to measure, and prefabricated field area needs to construct the measuring tower simultaneously, and the measuring tower needs to satisfy requirements such as precision height, little, the obvious settlement of deformation to should carry out calibration and maintenance regularly, the construction cost is high, and is higher to the requirement in place.
Disclosure of Invention
The present invention is directed to overcome the above-mentioned drawbacks of the prior art, and provides a method and a storage medium for controlling a prefabricated line shape of a matching prefabricated bridge deck, which are highly reliable, simple to control, and practical.
The purpose of the invention can be realized by the following technical scheme:
a prefabricated linear control method for matching prefabricated bridge decks is disclosed, which generates a prefabrication instruction of an (i +1) # slab based on prefabrication construction data of an i # slab and the (i-1) # slab, and comprises the following steps:
s1, acquiring actually measured prefabricated data of the i # plate;
s2, judging whether the actually measured prefabricated data is reasonable, if so, executing a step S3, otherwise, executing a step S3 after correction;
s3, calculating coordinates of positioning points of the i # plate under the i # plate prefabrication local coordinate system based on the actually measured prefabrication data obtained in the step S2, wherein the positioning points comprise four corner points and matching edge midpoints;
s4, aligning the i # plate to an (i-1) # plate under a geodetic coordinate system, and obtaining the actual coordinates of each positioning point of the i # plate under the geodetic coordinate system through coordinate conversion;
s5, calculating to obtain a prefabricating instruction of the (i +1) # board according to the actual coordinates of each positioning point of the i # board;
and S6, judging whether the deviation between the prefabrication command of the (i +1) # board and the theoretical state exceeds the limit, and if so, correcting the prefabrication command.
Furthermore, the actually measured prefabricated data comprises a board width at the fixed end mould side, a left line board length, a central axis length, a right line board length and two diagonal line lengths.
Further, in step S2, the determining whether the measured pre-fabricated data is reasonable specifically includes:
checking the linearity of the matching end of the i # plate, and if the middle of the matching end protrudes, judging that the measured prefabricated data is unreasonable;
the method for testing the linearity of the matching end of the i # plate specifically comprises the following steps:
judgment of L Ci And (L) Ri +L Li ) The relationship of/2, if L Ci ＞(L Ri +L Li ) And/2, judging that the middle of the matching end is convex, wherein L Ci Is the central axis is long, L Ri Is a right line plate long, L Li Is the left line board long.
Further, in step S2, when the measured data is corrected, the measured data is extended by a correction amount according to the principle that the matching ends are parallel to each other, so as to obtain corrected measured data, and the calculation formula of the correction amount Δ L is:
ΔL＝L Ci -(L Ri +L Li )/2。
furthermore, the i # plate prefabricating local coordinate system is constructed by taking the fixed end die edge as an x axis, the direction perpendicular to the fixed end die edge as a y axis and the middle point of the fixed end die edge as a coordinate origin.
Further, in step S4, aligning the i # board to the (i-1) # board in the geodetic coordinate system specifically includes:
aligning the actually measured linear matching edge of the i # plate to the fixed end mold edge of the (i-1) # plate in the geodetic coordinate system, and aligning the midpoint of the matching edge of the i # plate to the midpoint of the matching edge of the (i-1) # plate.
Further, in step S5, the step of calculating the prefabrication instruction of the (i +1) # board includes:
and constructing an (i +1) # plate prefabrication local coordinate system, converting the actual coordinates of each positioning point of the i # plate from the earth coordinate system to the (i +1) # plate prefabrication local coordinate system through coordinate conversion, and obtaining the prefabrication instruction of the (i +1) # plate based on the coordinates of each positioning point of the i # plate under the (i +1) # plate prefabrication local coordinate system.
Further, the pre-fabricated instructions include a left line board length, a central line length, and a right line board length of the (i +1) # board.
Further, in step S6, the modifying the pre-prepared command specifically includes:
and correcting the prefabricated command according to the position deviation of the real measurement structure central line and the theoretical central line of the i # plate and a wrong platform adjusting method or a segmented adjusting method.
The present invention also provides a computer readable storage medium comprising one or more programs for execution by one or more processors of an electronic device, the one or more programs including instructions for performing the preformed linear control method as described above.
Compared with the prior art, the invention has the following advantages:
(1) based on the short-line method matching prefabrication principle, the length of the bridge deck section instead of the coordinates of the control points is taken as a control element, the set positioning points comprise four corner points and the middle points of the matching edges, the traditional six-point method is replaced by the four-point method, the prefabricated line shape control method for matching the prefabricated bridge deck is provided, and the data measurement and error correction processes are effectively simplified;
(2) the invention considers and designs the corresponding judging and correcting modes when the measured data is unreasonable and the deviation between the prefabricated instruction and the theoretical state is overlarge, thereby effectively improving the control precision;
(3) the method does not need equipment facilities such as a total station, a measuring tower and the like, has simple and convenient measuring and error correcting processes, and can be used for guiding engineering practice of bridge deck slab prefabrication by a short-line method.
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FIG. 1 is a schematic flow diagram of the process of the present invention;
FIG. 2 is a schematic diagram of an i # plate prefabrication local coordinate system in the method of the present invention;
FIG. 3 is a schematic view of the (i +1) # plate prefabrication local coordinate system in the method of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
The invention provides a prefabricated linear control method for matching prefabricated bridge decks, which is used for generating a prefabrication instruction of an (i +1) # slab based on prefabrication construction data of an i # slab and an (i-1) # slab, and comprises the following steps as shown in figure 1:
S1acquiring actual measurement prefabricated data of the i # plate, including the plate width B and the left line plate length L on the fixed end die side Li Central axis length L Ci Length L of right line board Ri And two diagonal lengths L (L-R)i 、L (R-L)i ；
S2, judging whether the actually measured prefabricated data are reasonable or not, if so, executing a step S3, and if not, executing a step S3 after correction;
s3, calculating coordinates of positioning points of the i # plate under the i # plate prefabrication local coordinate system based on the actually measured prefabrication data obtained in the step S2, wherein the positioning points comprise four corner points and matching edge midpoints;
s4, aligning the i # plate to an (i-1) # plate under a geodetic coordinate system, and obtaining the actual coordinates of each positioning point of the i # plate under the geodetic coordinate system through coordinate conversion;
s5, calculating to obtain a prefabricating instruction of the (i +1) # board according to the actual coordinates of each positioning point of the i # board;
and S6, judging whether the deviation between the prefabrication instruction of the (i +1) # board and the theoretical state exceeds the limit, if so, correcting the prefabrication instruction, wherein the prefabrication instruction comprises the left board length, the middle shaft length and the right board length of the (i +1) # board.
In step S2, the determining whether the measured prefabricated data is reasonable specifically includes:
according to L Ci And (L) Ri +L Li ) The relation of/2 is used for checking the linearity of the matching end of the i # plate if L Ci ＝(L Ri +L Li ) 2, the matching end has better linearity, and two end points and a middle point are on the same straight line; if L is Ci ＜(L Ri +L Li ) The middle of the matching end is sunken, so that the prefabricated line shape is not influenced; if L is Ci ＞(L Ri +L Li ) And/2, the middle of the matching end protrudes, and the fact that the measured prefabricated data is unreasonable is judged, and the measured data needs to be corrected.
When the actual measurement prefabricated data is corrected, the actual measurement data is extended by a correction amount according to the principle that the matching end keeps parallel, and the corrected actual measurement data is obtained, wherein a calculation formula of the correction amount delta L is as follows:
ΔL＝L Ci -(L Ri +L Li )/2。
as shown in FIG. 2, the i # plate prefabrication local coordinate system is constructed by taking the fixed end mold edge as an x-axis, the direction perpendicular to the fixed end mold as a y-axis and the middle point of the fixed end mold edge as a coordinate origin. The specific calculation formula for calculating the coordinates of each positioning point of the i # plate under the i # plate prefabricated local coordinate system is as follows:
Figure BDA0002862975030000051
Figure BDA0002862975030000052
x c ＝(x 1 +x 2 )/2,y c ＝(y 1 +y 2 )/2
Figure BDA0002862975030000053
Figure BDA0002862975030000054
in the formula, subscripts 1, 2,3, 4 respectively represent four corner points, subscript c represents a matching edge midpoint, x, y respectively represent coordinates of corresponding points, and p L 、p R The perimeter of a triangle formed by the side edges, the fixed end die edges and the diagonal of the plate is calculated according to the following formula:
p L ＝(L (R-L)i +L Li +B)/2
p R ＝(L (L-R)i +L Ri +B)/2
in step S4, aligning the i # plate to the (i-1) # plate in the geodetic coordinate system of the bridge design specifically includes: aligning the actually measured linear matching edge of the i # plate to the fixed end mold edge of the (i-1) # plate in a geodetic coordinate system, aligning the midpoint of the matching edge of the i # plate to the midpoint of the matching edge of the (i-1) # plate, and converting to an assembling actual position. The specific process of coordinate transformation comprises the following steps:
firstly, calculating a trigonometric function value of an included angle between a connecting line of (i-1) # plate positioning points 3 and 4 and a coordinate axis in a geodetic coordinate system (an apostrophe in an upper corner mark represents that the coordinate is the coordinate in the geodetic coordinate system, and the following is the same):
Figure BDA0002862975030000055
then, calculating a trigonometric function value of an included angle between a connecting line of positioning points 1 and 2 of the i # plate and a coordinate axis under the prefabricated local coordinate system of the i # plate:
Figure BDA0002862975030000056
the coordinate transformation trigonometric function value is:
sinθ＝sin B cos A-cos B sin A
cosθ＝cos B sin A+sin B sin A
in the form of (x) of an i # plate c ,y c ) (x) aligned with (i-1) # plate 0 ,y 0 ) And calculating the offset of the origin:
Δx＝x 0(i-1) '-(x c cosθ-y c sinθ)
Δy＝y 0(i-1) '-(x c sinθ+y c cosθ)
then for any point (x, y), the coordinate transformation relationship from the i # plate pre-fabricated local coordinate system to the geodetic coordinate system is:
x'＝Δx+(x cosθ-y sinθ)
y'＝Δy+(x sinθ+y cosθ)
and substituting the coordinates of each positioning point of the i # plate under the prefabricated local coordinate system into the formula to obtain the corresponding coordinates of each positioning point under the geodetic coordinate system.
In step S5, the front end of the theoretical centerline of the (i +1) # board (the prefabrication advancing direction is taken as the front end, i.e. the side of the fixed end mold is taken as the front end) and the front end of the prefabricated actual centerline of the i # board (i.e. the positioning point (x) of the i # board 0 ,y 0 ) The line drawn by (i +1) # plate was taken as the corrected centerline.
In step S5, the step of calculating the prefabrication instruction of the (i +1) # board includes:
the front end of the theoretical central line of the (i +1) # plate is taken as the origin of coordinates and is marked as (x) e ,y e ) (ii) a With (x) s ,y s ) With i # plate prefabricating the actual center line front end (x) 0 ,y 0 ) The connecting line direction of the (i +1) # board is the positive direction of the y-axis, and the direction perpendicular to the connecting line direction is the direction of the x-axis, and a (i +1) # board prefabrication local coordinate system is established. And transforming the coordinates of each positioning point of the i # plate from a geodetic coordinate system to a (i +1) # plate prefabrication local coordinate system through coordinate transformation (two apostrophes in an upper corner mark represent that the coordinates are the coordinates of the (i +1) # plate prefabrication local coordinate system, and the same is applied below).
Slope of matching edge under (i +1) # plate prefabricated local coordinate system
Figure BDA0002862975030000061
Then side length instruction
Figure BDA0002862975030000062
Figure BDA0002862975030000063
Figure BDA0002862975030000064
In the formula, B 0 The theoretical plate width.
In step S6, when the deviation between the prefabrication command of the (i +1) # board and the theoretical state exceeds the limit, the corrected prefabrication command is obtained by the following method:
firstly, judging the position deviation of the central line of the real measuring structure of the i # plate and the theoretical central line, if the deviation amount is less than 1cm, directly taking the theoretical central line of the (i +1) # plate as the corrected central line and the fixed end mould edge of the i # plate as the matching edge of the (i +1) # plate according to a wrong platform adjusting method without correcting the prefabricated angle error of the i # plate, and only correcting the prefabricated length error of the i # plate, so that the fixed end mould edge of the (i +1) # plate is kept to be vertical to the theoretical central line, and the prefabricated instruction of the (i +1) # plate after correction is obtained; if the deviation is larger than 1cm, the deviation is corrected block by block according to a segmentation adjustment method, namely in the subsequent several segments.
The above functions, if implemented in the form of software functional units and sold or used as a separate product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
Examples
In this embodiment, the positioning point (x) of the (i-1) # board is obtained according to the previous achievement through matching prefabrication of the preamble block section 0(i-1) ′,y 0(i-1) ′)、(x 3(i-1) ′,y 3(i-1) ′)、(x 4(i-1) ′,y 4(i-1) ') coordinates are (500898.6159,3394958.9610), (500893.7372,3394955.2578), (500903.4946,3394962.6643), respectively.
The actual prefabricated length of the i # plate is obtained through measurement as follows: the width B of the fixed end die is 12.264m, and the length L of the left line plate of the bridge deck Li 3.415m, central axis length L Ci 3.420m, right line board length L Ri 3.432m and a diagonal length L R-Li ＝12.718m、L L-Ri ＝12.722m。
The rationality of the measured data of the i # plate is tested, L C ＝3.420m＜(L L +L R ) And 2, 3.424m, which shows that the middle of the matching end is sunken, does not influence the prefabricated line shape and does not need to be corrected.
Referring to fig. 2, an i # plate prefabricated local coordinate system is established with the fixed end mold edge as an x-axis, the direction perpendicular to the fixed end mold edge as a y-axis, and the middle point of the fixed end mold edge as a coordinate origin, and coordinates of each positioning point are calculated according to the following formula:
Figure BDA0002862975030000071
Figure BDA0002862975030000072
x c ＝(x 1 +x 2 )/2＝0,y c ＝(y 1 +y 2 )/2＝3.423m
Figure BDA0002862975030000073
Figure BDA0002862975030000074
in the formula, p L 、p R The perimeter of a triangle formed by the side edges, the fixed end die edges and the diagonal of the plate is calculated according to the following formula:
p L ＝(L R-L +L L +B)/2＝14.192m
p R ＝(L L-R +L R +B)/2＝14.202m
the positioning points 1 and 2 of the i # plate are connected with the positioning points 3 and 4 of the (i-1) # plate, and the positioning points (x) of the i # plate are connected with each other c ,y c ) Aligning (x) of (i-1) # plate 0 ,y 0 ) And (3) converting the measured line shape of the i # plate into the actual assembly position (by adopting a geodetic coordinate system of the bridge design) as a principle. Firstly, calculating a trigonometric function value of an included angle between a connecting line of (i-1) # plate positioning points 3 and 4 and a coordinate axis under a geodetic coordinate system:
Figure BDA0002862975030000081
Figure BDA0002862975030000082
then, calculating a trigonometric function value of an included angle between a connecting line of positioning points 1 and 2 of the i # plate and a coordinate axis under the prefabricated local coordinate system of the i # plate (an apostrophe in an upper corner mark represents that the coordinate is a coordinate under a geodetic coordinate system, and the following is the same):
Figure BDA0002862975030000083
Figure BDA0002862975030000084
the coordinate transformation trigonometric function value is:
sinθ＝sin B cos A-cos B sin A＝0.6035
cosθ＝cos B sin A+sin B sin A＝0.7974
in the form of an i # plate (x) c ,y c ) Aligning (x) of (i-1) # plate 0 ,y 0 ) And calculating the offset of the origin:
Δx＝x 0 '-(x c cosθ-y c sinθ)＝500900.6841
Δy＝y 0 '-(x c sinθ+y c cosθ)＝3394956.2291
calculating the corresponding coordinates of each positioning point of the i # plate in the geodetic coordinate system according to the coordinate conversion relation from the i # plate prefabricated local coordinate system to the geodetic coordinate system:
x 1 '＝Δx+(x 1 cosθ-y 1 sinθ)＝500893.7385
y 1 '＝Δy+(x 1 sinθ+y 1 cosθ)＝3394955.2550
x 2 '＝Δx+(x 2 cosθ-y 2 sinθ)＝500903.4969
y 2 '＝Δy+(x 2 sinθ+y 2 cosθ)＝3394962.6623
x 3 '＝Δx+(x 3 cosθ-y 3 sinθ)＝500895.8002
y 3 '＝Δy+(x 3 sinθ+y 3 cosθ)＝3394952.5326
x 4 '＝Δx+(x 4 cosθ-y 4 sinθ)＝500905.5679
y 4 '＝Δy+(x 4 sinθ+y 4 cosθ)＝3394959.9255
referring to FIG. 3, the front end of the theoretical centerline of the (i +1) # plate (the prefabrication advancing direction is taken as the front end, i.e. the side of the fixed end mold is taken as the front end) and the front end of the prefabricated actual centerline of the i # plate (i.e. the positioning point (x) of the i # plate 0 ,y 0 ) The line drawn by (i +1) # plate was taken as the corrected centerline. The front end of the theoretical central line of the (i +1) # plate is taken as the origin of coordinates and is marked as (x) e ,y e ) (ii) a With (x) s ,y s ) With i # plate prefabricating the actual center line front end (x) 0 ,y 0 ) The connecting line direction of the (i +1) # board is the positive direction of the y-axis, and the direction perpendicular to the connecting line direction is the direction of the x-axis, and a (i +1) # board prefabrication local coordinate system is established.
And transforming the coordinates of each positioning point of the i # plate from a geodetic coordinate system to a (i +1) # plate prefabrication local coordinate system through coordinate transformation (two apostrophes in an upper corner mark represent that the coordinates are the coordinates of the (i +1) # plate prefabrication local coordinate system, and the same is applied below). The coordinates of each positioning point of the i # plate under the (i +1) # plate prefabricated local coordinate system are obtained through calculation
x 3 ”＝-6.125m,y 3 ”＝3.433m
x 4 ”＝6.125m,y 3 ”＝3.448m
Slope of matching edge under (i +1) # plate prefabrication local coordinate system
Figure BDA0002862975030000091
Then side length instruction
Figure BDA0002862975030000092
Figure BDA0002862975030000093
Figure BDA0002862975030000094
In the formula, B 0 The theoretical plate width.
The length of the (i +1) # plate in the theoretical state is calculated and obtained based on the designed linear and geometric relationship in the early stage and is L C(i+1) 0 ＝3.433m、L L(i+1) 0 ＝3.425m、L R(i+1) 0 3.441 m. And (5) judging that the deviation between the (i +1) # plate instruction and the theoretical state is within a reasonable range, and performing prefabrication construction according to the instruction.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.

Claims (9)

1. A prefabricated line shape control method matched with a prefabricated bridge deck is characterized in that a prefabrication instruction of an (i +1) # plate is generated based on prefabrication construction data of an i # plate and an (i-1) # plate, and comprises the following steps:
s1, acquiring actually measured prefabricated data of the i # plate;
s2, judging whether the actually measured prefabricated data is reasonable, if so, executing a step S3, otherwise, executing a step S3 after correction;
s3, calculating coordinates of positioning points of the i # plate under the i # plate prefabrication local coordinate system based on the actually measured prefabrication data obtained in the step S2, wherein the positioning points comprise four corner points and matching edge midpoints;
s4, aligning the i # plate to an (i-1) # plate under a geodetic coordinate system, and obtaining the actual coordinates of each positioning point of the i # plate under the geodetic coordinate system through coordinate conversion;
s5, calculating to obtain a prefabricating instruction of the (i +1) # board according to the actual coordinates of each positioning point of the i # board;
s6, judging whether the deviation between the prefabrication command of the (i +1) # board and the theoretical state exceeds the limit, if so, correcting the prefabrication command;
in step S2, the determining whether the measured prefabricated data is reasonable specifically includes:
checking the linearity of the matching end of the i # plate, and if the middle of the matching end protrudes, judging that the measured prefabricated data is unreasonable;
the method for testing the linearity of the matching end of the i # plate specifically comprises the following steps:
judgment of L Ci And (L) Ri +L Li ) The relationship of/2, if L Ci ＞(L Ri +L Li ) And/2, judging that the middle of the matching end is convex, wherein L Ci Is the central axis is long, L Ri Is long on the right side, L Li Is the left line board long.
2. The prefabricated wire shape control method for matching prefabricated bridge deck according to claim 1, wherein said measured prefabricated data comprises a slab width at a fixed end mold side, a left slab length, a middle axis length, a right slab length and two diagonal lengths.
3. The precast line shape control method for matching precast deck slab according to claim 1, wherein in step S2, when the measured precast data is corrected, the measured data is extended by a correction amount according to a principle that the matching end is kept parallel, so as to obtain the corrected measured data, and the calculation formula of the correction amount Δ L is:
ΔL＝L Ci -(L Ri +L Li )/2。
4. the precast line shape control method of matching precast bridge panels according to claim 1, wherein the i # plate precast local coordinate system is constructed with a fixed end mold edge as an x-axis, a direction perpendicular to the fixed end mold as a y-axis, and a midpoint of the fixed end mold edge as a coordinate origin.
5. The prefabricated line shape control method for matching prefabricated bridge deck according to claim 1, wherein in step S4, aligning the i # board to the (i-1) # board in the geodetic coordinate system is specifically:
aligning the actually measured linear matching edge of the i # plate to the fixed end mold edge of the (i-1) # plate in the geodetic coordinate system, and aligning the midpoint of the matching edge of the i # plate to the midpoint of the matching edge of the (i-1) # plate.
6. The prefabricated linear control method for matching prefabricated bridge decks according to claim 1, wherein in step S5, the prefabricated command for calculating the (i +1) # slab is specifically:
and constructing an (i +1) # plate prefabrication local coordinate system, converting the actual coordinates of each positioning point of the i # plate from the earth coordinate system to the (i +1) # plate prefabrication local coordinate system through coordinate conversion, and obtaining the prefabrication instruction of the (i +1) # plate based on the coordinates of each positioning point of the i # plate under the (i +1) # plate prefabrication local coordinate system.
7. The prefabricated line shape control method for matching prefabricated bridge deck according to claim 1 or 6, wherein the prefabricated command comprises a left line board length, a central line length and a right line board length of an (i +1) # board.
8. The prefabricated line shape control method for matching prefabricated bridge deck according to claim 1, wherein in step S6, the modification of the prefabricated command is specifically:
and correcting the prefabricated command according to the position deviation of the real measurement structure central line and the theoretical central line of the i # plate and a wrong platform adjusting method or a segmented adjusting method.
9. A computer-readable storage medium comprising one or more programs for execution by one or more processors of an electronic device, the one or more programs including instructions for performing the preformed linear control method of any of claims 1-8.
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