Linear continuous beam construction line monitoring method and device

Abstract

The application discloses a linear continuous beam construction line type monitoring device, which comprises a control system, a plurality of GPS coordinate instruments, a first hanging basket and a second hanging basket, the first hanging basket and the second hanging basket are respectively installed on both sides of a pier, each GPS coordinate instrument is electrically connected with the control system, a first base point GPS coordinate instrument and a second base point GPS coordinate instrument are respectively installed at the center position of the beam surface of the pier or the side span, a first dynamic point GPS coordinate instrument and a second dynamic point GPS coordinate instrument are respectively installed at the opposite positions on the same side of the first hanging basket and the second hanging basket, the real-time monitoring of the coordinates of each point is realized, and the cumbersome steps of manual measurement are avoided. Meanwhile, the application discloses a linear continuous beam construction line type monitoring method, the vertical distance, the vertical distance and the parallelism are controlled, accurate construction is realized, the adjustment in the walking process of the hanging basket is realized, the error is small, only the technical personnel need to review the measurement points, the frequency of measurement and adjustment is reduced, and the construction efficiency can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of hanging basket construction technology, specifically to a method and device for monitoring the alignment of a straight continuous beam construction. Background Technology

[0002] During the construction of a straight continuous beam, different construction segments are poured from the piers towards the closure section. To ensure smooth closure of the two sides of the bridge and avoid misalignment, longitudinal and transverse measurements and controls are required during construction. This means controlling the axis and lateral roll of each construction segment. Axis monitoring and roll monitoring are used to control the axis and roll errors of the straight continuous beam to meet design requirements, respectively. Currently, technicians establish measurement base stations and set temporary measurement control points. Based on theoretical coordinates and pre-camber, they adjust the formwork position of the formwork. The entire process requires measuring and calculating the coordinates of each point, and then adjusting the formwork based on the measurement results. The existing straight continuous beam construction process has the problem that each segment requires technicians to perform multiple point-to-point measurements and calculations, followed by adjusting the formwork position. This process is cumbersome, time-consuming, and results in low construction efficiency. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a method and device for monitoring the construction alignment of a straight continuous beam, which can acquire the coordinates of each point in real time and complete the calculation with a precise algorithm, automatically control the adjustment of the hanging basket position, and ensure that the straight continuous beam meets the design requirements.

[0004] The present invention solves the above problems through the following technical means:

[0005] A method for monitoring the alignment during construction of a straight continuous beam includes axis monitoring and roll monitoring. The axis monitoring includes the following steps:

[0006] Step A1: Install the first base point GPS coordinate instrument (2) and the second base point GPS coordinate instrument (3) at the center line of the beam surface of the two bridge piers respectively. Set the coordinate point of the first base point GPS coordinate instrument as B1 and the coordinate point of the second base point GPS coordinate instrument as B2. Establish the reference line B1B2 based on the two points B1 and B2 and the slope equation in the bridge design drawing.

[0007] Step A2: Install and adjust the position and angle of the first hanging basket (6) and the second hanging basket (7). Install the first moving point GPS coordinate instrument (4) on the first hanging basket and the second moving point GPS coordinate instrument (5) on the second hanging basket. Set the coordinate point of the first moving point GPS coordinate instrument to S1 and the coordinate point of the second moving point GPS coordinate instrument to S2. Establish the moving monitoring line S1S2 from the two points S1 and S2.

[0008] Step A3: Fix the position of the first moving point GPS coordinate instrument (4), and adjust the position of the second moving point GPS coordinate instrument (5) so that the moving monitoring line S1S2 is parallel to the reference line B1B2;

[0009] Step A4: During each subsequent movement of the first and second hanging baskets, the control system (1) calculates whether the parallelism between the moving monitoring line and the reference line, as well as the vertical and vertical distances from coordinate points S1 and S2 to the reference line, are within the allowable error range. Based on the calculation results of the control system, the direction of the hanging basket is adjusted to ensure that the axis of the straight continuous beam meets the design requirements.

[0010] Furthermore, the roll monitoring includes the following steps:

[0011] Step C1: Install the first base point GPS coordinate instrument (2) and the second base point GPS coordinate instrument (3) at the center line of the beam surface of the two bridge piers respectively. Let the coordinate point of the first base point GPS coordinate instrument be B1 and the coordinate point of the second base point GPS coordinate instrument be B2. Establish the reference line based on the two points B1 and B2 and the slope equation in the bridge design drawing.

[0012] Step C2: Install the first moving point GPS coordinate instrument on the first hanging basket (6) and the second moving point GPS coordinate instrument on the second hanging basket (7). Set the coordinate point of the first moving point GPS coordinate instrument to S1 and the coordinate point of the second moving point GPS coordinate instrument to S2. Establish the moving monitoring line S1S2 from the two points S1 and S2.

[0013] Step C3: After the position adjustment of the first and second hanging baskets of the first construction segment is completed, the control system records the vertical distances from coordinate point S1 to coordinate point B1 and from coordinate point S2 to coordinate point B2 respectively.

[0014] Step C4: During the process of moving the first and second hanging baskets forward to the next construction segment, before the first or second hanging basket is anchored, the vertical distance from coordinate point S1 to coordinate point B1 and from coordinate point S2 to coordinate point B2 is compared with the vertical distance recorded in step C3 by the control system to determine whether the roll control is within the allowable error range.

[0015] Step C5: Based on the judgment result of step C4, adjust the positions of the first and second hanging baskets to within the allowable error range, and anchor the first and second hanging baskets to ensure that the roll error of the straight continuous beam meets the design requirements.

[0016] Furthermore, in step A2 and / or step C2, the first hanging basket is equipped with a plurality of first moving point GPS coordinate instruments, and the second hanging basket is equipped with a number of second GPS coordinate instruments corresponding to the number on the first hanging basket. Multiple parallel motion monitoring lines are established between each first moving point GPS coordinate instrument and each second moving point GPS coordinate instrument.

[0017] Furthermore, in step A4, the method for calculating the vertical distance and the vertical distance between coordinate point S1 or S2 and the reference line B1B2 is the same. Taking coordinate point S1 as an example:

[0018] Let: the coordinate point S1 be (X S1 ,Y S1 Z S1 The coordinates of point S2 are (X S2 ,Y S2 Z S2 );

[0019] Coordinate point B1 is (X B1 ,Y B1 Z B1 The coordinates of point B2 are (X B2 ,Y B2 Z B2 );

[0020] Direction vector of reference line B1B2 ;

[0021] The direction vector of the first basket offset line S1B1 ;

[0022] Then: the perpendicular distance from coordinate point S1 to the reference line B1B2 ;

[0023] Vertical distance from coordinate point S1 to the reference line B1B2 , where b is a constant.

[0024] Furthermore, in step A4, the method for calculating the parallelism between the motion monitoring line and the reference line is as follows:

[0025] Let: the coordinate point B1 be (X B1 ,Y B1 Z B1 The coordinates of point B2 are (X B2 ,Y B2 Z B2 );

[0026] Direction vector of reference line B1B2 ;

[0027] Direction vector of moving monitoring line S1S2 ;

[0028] Then: when When established, the reference line B1B2 is parallel to the motion monitoring line S1S2;

[0029] in:

[0030]

[0031] .

[0032] Furthermore, according to the slope equation in the bridge design drawings, if the continuous beam to be constructed between the two piers has multiple segments with different slopes, then the axis of the continuous beam to be constructed between the two piers can be regarded as a continuous broken line in the XZ plane, and the turning point of the broken line is the slope change point of the bridge. When there are N slope change points in the continuous beam to be constructed between the two piers, the continuous beam to be constructed between the two piers is divided into N+1 straight lines with different slopes in the XZ plane with each slope change point as the boundary. A reference line is established for each straight line segment, and a total of N+1 reference lines are established. N+1 moving monitoring lines are established for each reference line.

[0033] Furthermore, in step C4, the method for calculating the vertical distance between coordinate point S1 or S2 and the reference line B1B2 is the same. Taking coordinate point S1 as an example:

[0034] Let: the coordinate point S1 be (X S1 ,Y S1 Z S1 );

[0035] Coordinate point B1 is (X B1 ,Y B1 Z B1 The coordinates of point B2 are (X B2 ,Y B2 Z B2 );

[0036] Vertical distance from coordinate point S1 to the reference line B1B2 , where b is a constant.

[0037] A linear continuous beam construction alignment monitoring device includes a control system, a first base point GPS coordinate instrument, a second base point GPS coordinate instrument, a first moving point GPS coordinate instrument, a second moving point GPS coordinate instrument, a first hanging basket, and a second hanging basket. The first hanging basket and the second hanging basket are respectively installed at the piers on both sides. The first base point GPS coordinate instrument, the second base point GPS coordinate instrument, the first moving point GPS coordinate instrument, and the second moving point GPS coordinate instrument are all electrically connected to the control system. The first base point GPS coordinate instrument and the second base point GPS coordinate instrument are respectively installed at the center position of the beam surface on both sides of the piers. The first moving point GPS coordinate instrument and the second moving point GPS coordinate instrument are respectively installed at opposite positions on the same side of the first hanging basket and the second hanging basket.

[0038] This invention has at least the following beneficial effects:

[0039] The present invention discloses a method for monitoring the alignment of straight continuous beam construction. By measuring and calculating coordinate points and combining this with the slope equation in the bridge design drawings, the parallelism between the moving monitoring line and the reference line, as well as the vertical and perpendicular distances from coordinate points S1 and S2 to the reference line, are controlled. This allows for the determination of the construction positions of the first and second formwork hanging baskets that meet design requirements. The method enables adjustments to the formwork's direction and posture based on control data calculated by the control system during its movement. Once in position, the deviation from the reference line is minimal, requiring only technical personnel to verify the measurement points, thus reducing the frequency of measurement and adjustment and effectively improving construction efficiency.

[0040] The linear continuous beam construction alignment monitoring device of the present invention monitors the coordinates of each point in real time through a first base point GPS coordinate instrument, a second base point GPS coordinate instrument, a first moving point GPS coordinate instrument, and a second moving point GPS coordinate instrument. The device performs calculations through a control system and adjusts the positions of the first and second hanging baskets in real time, avoiding the tedious steps of manual measurement. It is convenient to use and can effectively improve construction efficiency. Attached Figure Description

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] Figure 1 This is a front view of the device disclosed in an embodiment of the present invention;

[0043] Figure 2 yes Figure 1 Top view;

[0044] Figure 3 This is a schematic diagram of a straight continuous beam with only one slope change point.

[0045] In the diagram, 1. Control system; 2. First base point GPS coordinate instrument; 3. Second base point GPS coordinate instrument; 4. First moving point GPS coordinate instrument; 5. Second moving point GPS coordinate instrument; 6. First hanging basket; 7. Second hanging basket; 8. Cast-in-place segment; 9. Slope change point; 10. Pier. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present invention will become clearer and more apparent. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them.

[0047] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0049] like Figure 1 and Figure 2As shown in the figure, this invention discloses a straight continuous beam construction alignment monitoring device, including a control system 1, a first base point GPS coordinate instrument 2, a second base point GPS coordinate instrument 3, a first moving point GPS coordinate instrument 4, a second moving point GPS coordinate instrument 5, a first hanging basket 6, and a second hanging basket 7. The first and second hanging baskets are respectively installed at the cast-in-place segments 8 of the two side piers 10, with the front ends of the first and second hanging baskets being the sections to be closed. The first, second, first, and second base point GPS coordinate instruments are all connected to the control system. The first and second base point GPS coordinate instruments are respectively installed at the center position of the beam surface of the two side piers, and the first and second moving point GPS coordinate instruments are respectively installed at opposite positions on the same side of the first and second hanging baskets. Specifically, the optimal installation position for the first and second base point GPS coordinate instruments is at the center line of the beam surface. However, when the center line position is occupied, the first and second base point GPS coordinate instruments can also be installed on any straight line parallel to the beam surface center line. The control system is installed on the connecting truss of the first and second hanging baskets, facilitating the reception of signals from each GPS coordinate instrument and the issuance of control signals to adjust the position and attitude of each hanging basket. Of course, the control system can also be installed in other locations depending on the actual situation. Two moving-point GPS coordinate instruments are respectively installed on the upper crossbeams of the two opposing hanging baskets to establish moving monitoring lines S1 and S2. Depending on the actual construction situation, the two moving-point GPS coordinate instruments can also be installed in other locations, ensuring that the line connecting the two moving points is parallel to the line connecting the two base points. The first and second hanging baskets are used to bear the concrete pouring load during continuous beam construction.

[0050] This embodiment also discloses a method for monitoring the alignment of a straight continuous beam during construction, including axis monitoring and roll monitoring.

[0051] The axis monitoring includes the following steps:

[0052] Step A1: Install the first base point GPS coordinate instrument (2) and the second base point GPS coordinate instrument (3) at the center line of the beam surface of the two bridge piers respectively. Set the coordinate point of the first base point GPS coordinate instrument as B1 and the coordinate point of the second base point GPS coordinate instrument as B2. Establish the reference line B1B2 based on the two points B1 and B2 and the slope equation in the bridge design drawing.

[0053] Step A2: Install and adjust the positions and angles of the first hanging basket (6) and the second hanging basket (7). Install the first moving point GPS coordinate instrument (4) on the first hanging basket and the second moving point GPS coordinate instrument (5) on the second hanging basket. Let the coordinate point of the first moving point GPS coordinate instrument be S1 and the coordinate point of the second moving point GPS coordinate instrument be S2. Establish the motion monitoring line S1S2 between the two points S1 and S2. In the actual construction process, one or more first moving point GPS coordinate instruments can be set on the first hanging basket, and the number of second GPS coordinate instruments corresponding to the number on the first hanging basket can be set on the second hanging basket. Multiple parallel motion monitoring lines are established between each first moving point GPS coordinate instrument and each second GPS coordinate instrument. By using multiple parallel motion monitoring lines for detection, the construction error can be further reduced.

[0054] Step A3: Fix the position of the first moving point GPS coordinate instrument (4), and adjust the position of the second moving point GPS coordinate instrument (5) so that the moving monitoring line S1S2 is parallel to the reference line B1B2;

[0055] Step A4: During each subsequent movement of the first and second hanging baskets, the control system (1) calculates whether the parallelism between the moving monitoring line and the reference line, as well as the vertical and vertical distances from coordinate points S1 and S2 to the reference line, are within the allowable error range. Based on the calculation results of the control system, the direction of the hanging basket is adjusted to ensure that the axis of the straight continuous beam meets the design requirements.

[0056] In step A4, the method for calculating the vertical and perpendicular distances between coordinate point S1 or S2 and the reference line B1B2 is the same. We will now use coordinate point S1 as an example to illustrate how to perform the calculation. To calculate the vertical and perpendicular distances between coordinate point S2 and the reference line B1B2, simply replace coordinate point S1 with coordinate point S2 in the following formula.

[0057] First, let: the coordinate point S1 be (X S1 ,Y S1 Z S1 The coordinates of point S2 are (X S2 ,Y S2 Z S2 );

[0058] Coordinate point B1 is (X B1 ,Y B1 Z B1 The coordinates of point B2 are (X B2 ,Y B2 Z B2 );

[0059] Direction vector of reference line B1B2 ;

[0060] The direction vector of the first basket offset line S1B1 ;

[0061] By calculating the parameters mentioned above, we can obtain the perpendicular distance from coordinate point S1 to the reference line B1B2. Vertical distance from coordinate point S1 to the reference line B1B2 Where b is a constant. Specifically, within a defined coordinate system, b is a fixed value. The value of b can be obtained by substituting the initial coordinates of the first base point GPS coordinate instrument, the second base point GPS coordinate instrument, the first moving point GPS coordinate instrument, and the second moving point GPS coordinate instrument into the calculation. During subsequent construction, even if the coordinates of the first moving point GPS coordinate instrument and the second moving point GPS coordinate instrument move within the same coordinate system, the value of b remains unchanged.

[0062] To calculate the parallelism between the moving monitoring line and the baseline reference line, the direction vector of the moving monitoring line S1S2 also needs to be introduced. ,when When established, the reference line B1B2 is parallel to the motion monitoring line S1S2;

[0063] in:

[0064]

[0065] .

[0066] Preferably, according to the slope equation in the bridge design drawings, if the continuous beam to be constructed between the two piers has multiple segments with different slopes, the axis of the continuous beam to be constructed between the two piers can be regarded as a continuous broken line in the XZ plane, and the turning point of the broken line is the slope change point of the bridge; when there are N slope change points in the continuous beam to be constructed between the two piers, the continuous beam to be constructed between the two piers is divided into N+1 straight lines with different slopes in the XZ plane with each slope change point as the boundary, and a reference line is established for each straight line segment, for a total of N+1 reference lines, and N+1 moving monitoring lines are established for each reference line.

[0067] Specifically, taking the continuous beam to be constructed between two bridge piers with a slope change point as an example: See Figure 3Using the slope change point 9 as the boundary, the continuous beam to be constructed between the two piers 10 is divided into two straight lines with different slopes in the XZ plane, and two reference lines are established between the two piers accordingly. The coordinates of the slope change point B3 are derived from the coordinates of the first base point GPS coordinate instrument (B1), the second base point GPS coordinate instrument (B2), and the bridge longitudinal slope and mileage calculated by the control system based on the first or second base point GPS coordinate instrument and the input data. The first reference line B1B3 is established using the slope change point B3 and the coordinates of the first base point GPS coordinate instrument (B1); the second reference line B2B3 is established using the slope change point B3 and the coordinates of the second base point GPS coordinate instrument (B2). Similarly, moving monitoring lines S1S3 and S2S3 are established using the coordinates S1 of the first moving point GPS coordinate instrument, the coordinates S1 of the second moving point GPS coordinate instrument, and the coordinates S3 of the third moving point calculated by the control system based on the first or second moving point GPS coordinate instrument and the input bridge longitudinal slope and mileage. The alignment of the two sections of the continuous beam to be constructed is monitored using the aforementioned reference line B1B3 and moving monitoring lines S1S3, and reference line B2B3 and moving monitoring lines S2S3.

[0068] In addition, since there is no hanging basket on the side of the side span (i.e., the beam located between the pier and the riverbank), only the base point GPS coordinate instrument and the moving point GPS coordinate instrument on the side corresponding to the hanging basket need to be installed. Therefore, during the initial installation, the moving point GPS coordinate instrument can be adjusted and then fixed. The rest of the installation and control principles are the same as those of the middle span (i.e., the beam located between the two piers as mentioned above).

[0069] The difference between roll monitoring and axis monitoring is that roll monitoring only needs to control the vertical distance between coordinate points S1 and S2 and the reference line B1B2. Therefore, let coordinate point S1 be (X... S1 ,Y S1 Z S1 The coordinates of point B1 are (X B1 ,Y B1 Z B1 The coordinates of point B2 are (X B2 ,Y B2 Z B2 From this, we can obtain the vertical distance from coordinate point S1 to the reference line B1B2. The vertical distance from coordinate point S2 to the reference line B1B2 , where b is a constant, and the value of b is calculated in the same way as above, so it will not be repeated here.

[0070] In summary, the linear continuous beam construction alignment monitoring and control device in this embodiment monitors the coordinates of each point in real time, avoiding the tedious steps of manual measurement. Through calculations performed by the control system, it controls the real-time adjustment of the positions of the first and second formwork hanging baskets, making it convenient to use and effectively improving construction efficiency. The linear continuous beam construction alignment monitoring and control method in this embodiment allows for adjustments to the direction and posture of the hanging basket based on control data calculated by the control system during its movement. Once in position, the deviation from the benchmark is minimal, requiring only technical personnel to verify the measurement points, reducing the frequency of measurement and adjustment, and effectively improving construction efficiency.

[0071] Unless otherwise stated, if any of the technical solutions disclosed in this invention specify a numerical range, then the disclosed numerical range is a preferred numerical range. Anyone skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this invention discloses only some numerical values ​​to illustrate the technical solutions of this invention. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this invention.

[0072] Furthermore, if the present invention discloses or relates to mutually fixedly connected components or structural parts, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral molding process).

[0073] Furthermore, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this invention include states or shapes that are similar to, analogous to, or close to those states or shapes. Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured using a one-piece molding process.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for monitoring the alignment of a straight continuous beam during construction, comprising axis monitoring and roll monitoring, characterized in that: The axis monitoring includes the following steps: Step A1: Install the first base point GPS coordinate instrument (2) and the second base point GPS coordinate instrument (3) at the center line of the beam surface of the two bridge piers (10). Set the coordinate point of the first base point GPS coordinate instrument as B1 and the coordinate point of the second base point GPS coordinate instrument as B2. Establish the reference line B1B2 based on the two points B1 and B2 and the slope equation in the bridge design drawing. Step A2: Install and adjust the position and angle of the first hanging basket (6) and the second hanging basket (7). Install the first moving point GPS coordinate instrument (4) on the first hanging basket and the second moving point GPS coordinate instrument (5) on the second hanging basket. Set the coordinate point of the first moving point GPS coordinate instrument to S1 and the coordinate point of the second moving point GPS coordinate instrument to S2. Establish the moving monitoring line S1S2 from the two points S1 and S2. Step A3: Fix the position of the first moving point GPS coordinate instrument (4), and adjust the position of the second moving point GPS coordinate instrument (5) so that the moving monitoring line S1S2 is parallel to the reference line B1B2; Step A4: During each subsequent movement of the first and second hanging baskets, the control system (1) calculates whether the parallelism between the moving monitoring line and the reference line, as well as the vertical and vertical distances from coordinate points S1 and S2 to the reference line, are within the allowable error range. Based on the calculation results of the control system, the direction of the hanging basket is adjusted to ensure that the axis of the straight continuous beam meets the design requirements.

2. The method for monitoring the alignment of a straight continuous beam construction project according to claim 1, characterized in that: The roll monitoring includes the following steps: Step C1: Install the first base point GPS coordinate instrument (2) and the second base point GPS coordinate instrument (3) at the center line of the beam surface of the two bridge piers respectively. Let the coordinate point of the first base point GPS coordinate instrument be B1 and the coordinate point of the second base point GPS coordinate instrument be B2. Establish the reference line based on the two points B1 and B2 and the slope equation in the bridge design drawing. Step C2: Install the first moving point GPS coordinate instrument on the first hanging basket (6) and the second moving point GPS coordinate instrument on the second hanging basket (7). Set the coordinate point of the first moving point GPS coordinate instrument to S1 and the coordinate point of the second moving point GPS coordinate instrument to S2. Establish the moving monitoring line S1S2 from the two points S1 and S2. Step C3: After the position adjustment of the first and second hanging baskets of the first construction segment is completed, the control system records the vertical distances from coordinate point S1 to coordinate point B1 and from coordinate point S2 to coordinate point B2 respectively. Step C4: During the process of moving the first and second hanging baskets forward to the next construction segment, before the first or second hanging basket is anchored, the vertical distance from coordinate point S1 to coordinate point B1 and from coordinate point S2 to coordinate point B2 is compared with the vertical distance recorded in step C3 by the control system to determine whether the roll control is within the allowable error range. Step C5: Based on the judgment result of step C4, adjust the positions of the first and second hanging baskets to within the allowable error range, and anchor the first and second hanging baskets to ensure that the roll error of the straight continuous beam meets the design requirements.

3. The method for monitoring the alignment of a straight continuous beam construction project according to claim 2, characterized in that: In step A2 and / or step C2, the first hanging basket is equipped with a plurality of first moving point GPS coordinate instruments, and the second hanging basket is equipped with a number of second moving point GPS coordinate instruments corresponding to the number on the first hanging basket. Multiple parallel motion monitoring lines are established between each first moving point GPS coordinate instrument and each second moving point GPS coordinate instrument.

4. The method for monitoring the alignment of a straight continuous beam construction project according to claim 1, characterized in that: In step A4, the method for calculating the vertical distance and the vertical distance between coordinate point S1 or S2 and the reference line B1B2 is the same. For coordinate point S1: Let: the coordinate point S1 be (X S1 ,Y S1 Z S1 The coordinates of point S2 are (X S2 ,Y S2 Z S2 ); Coordinate point B1 is (X B1 ,Y B1 Z B1 The coordinates of point B2 are (X B2 ,Y B2 Z B2 ); Direction vector of reference line B1B2 ; The direction vector of the first basket offset line S1B1 ; Then: the perpendicular distance from coordinate point S1 to the reference line B1B2 ; Vertical distance from coordinate point S1 to the reference line B1B2 , where b is a constant.

5. The method for monitoring the alignment of a straight continuous beam construction project according to claim 1, characterized in that: In step A4, the method for calculating the parallelism between the moving monitoring line and the reference line is as follows: Let: the coordinate point B1 be (X B1 ,Y B1 Z B1 The coordinates of point B2 are (X B2 ,Y B2 Z B2 ); Direction vector of reference line B1B2 ; Direction vector of moving monitoring line S1S2 ; Then: when When established, the reference line B1B2 is parallel to the motion monitoring line S1S2; in: 。 6. The method for monitoring the alignment of a straight continuous beam construction project according to claim 1, characterized in that: According to the slope equation in the bridge design drawings, if the continuous beam to be constructed between two piers has multiple segments with different slopes, the axis of the continuous beam to be constructed between the two piers can be regarded as a continuous broken line in the XZ plane, and the turning point of the broken line is the slope change point of the bridge. When there are N slope change points in the continuous beam to be constructed between two piers, the continuous beam to be constructed between the two piers is divided into N+1 straight lines with different slopes in the XZ plane with each slope change point as the boundary. A reference line is established for each straight line segment, and a total of N+1 reference lines are established. N+1 moving monitoring lines are established for each reference line.

7. The method for monitoring the alignment of a straight continuous beam construction project according to claim 2, characterized in that: In step C4, the method for calculating the vertical distance between coordinate point S1 or S2 and the reference line B1B2 is the same. For coordinate point S1: Let: the coordinate point S1 be (X S1 ,Y S1 Z S1 ); Coordinate point B1 is (X B1 ,Y B1 Z B1 The coordinates of point B2 are (X B2 ,Y B2 Z B2 ); Vertical distance from coordinate point S1 to the reference line B1B2 , where b is a constant.

8. A straight continuous beam construction alignment monitoring device, using the straight continuous beam construction alignment monitoring and control method according to any one of claims 1-7, characterized in that: The system includes a control system (1), a first base point GPS coordinate instrument (2), a second base point GPS coordinate instrument (3), a first moving point GPS coordinate instrument (4), a second moving point GPS coordinate instrument (5), a first hanging basket (6), and a second hanging basket (7). The first hanging basket and the second hanging basket are respectively installed at the cast-in-place segments (8) of the bridge piers on both sides. The first base point GPS coordinate instrument, the second base point GPS coordinate instrument, the first moving point GPS coordinate instrument, and the second moving point GPS coordinate instrument are all electrically connected to the control system (1). The first base point GPS coordinate instrument and the second base point GPS coordinate instrument are respectively installed at the center of the beam surface of the bridge piers on both sides. The first moving point GPS coordinate instrument and the second moving point GPS coordinate instrument are respectively installed at the opposite positions on the same side of the first hanging basket and the second hanging basket.

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