Measuring, positioning and mounting method for super-long arc-shaped aluminum plate

Abstract

The invention discloses a measuring, positioning and mounting method for an ultra-long arc-shaped aluminum plate. The mounting method comprises the following steps: deeply designing a suspended ceiling, reserving a control point, constructing a roof steel structure, rechecking the control point, modeling the roof steel structure, reviewing a model, mounting a keel pipe hoop assembly, mounting a keel pipe, mounting a suspended ceiling hanging assembly and mounting a suspended ceiling plate. The initial positioning temporary bracket is adopted for controlling the longitudinal position of the ceiling plate, the ceiling plate edge mounting control line formed by rays of the laser gradienter is adopted for controlling the transverse position of the ceiling plate, and the measuring tape is adopted for controlling the chord height direction position of the ceiling plate for measurement. The suspended ceiling plate is positioned and temporarily fixed through three kinds of control, and then the posture of the suspended ceiling plate is accurately adjusted through measurement of a Leica reflector plate and a total station. According to the method, installation of the suspended ceiling batten in the hollowed-out design of the suspended ceiling plate is achieved, the suspended ceiling batten is positioned, the posture of the suspended ceiling batten is accurately adjusted, then the posture of the suspended ceiling plate is accurately adjusted, and the space installation position precision of the suspended ceiling plate and the final forming impression of the hyperbolic suspended ceiling are both considered.

Description

Technical Field

[0001] The invention belongs to the field of interior decoration construction, and in particular to a method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate. Background Art

[0002] In pursuit of unique visual effects, more and more designers are using hyperbolic ceiling shapes when installing ceilings in buildings. However, in actual construction, hyperbolic ceilings are inconvenient in terms of both processing difficulty and installation methods. Existing hyperbolic ceilings are generally designed to be spliced ​​in blocks. Since each hyperbolic arc plate to be spliced ​​is irregular in shape, each hyperbolic arc plate needs to be designed, positioned and installed in a targeted manner to improve installation accuracy.

[0003] In order to solve this problem, existing designers design the interior ceiling panels into a hollow style, that is, the hyperbolic ceiling is formed by a group of variable-section single-curved aluminum strips as the base material, with equal seam intervals. Each single-curved aluminum strip is folded instead of bent, and multiple sections are spliced ​​together to form a hyperbolic shape with the plate seams. The design of the single-curved aluminum strip simplifies the construction difficulties of the hyperbolic ceiling hollow aluminum plate, such as irregularities and complex curvatures, into processing and positioning a group of strips.

[0004] However, the design still has the following problems in actual construction: 1. The design of single-curved aluminum strips adopts the method of equal seams and unequal plates, that is, the width of the seams between the strips remains unchanged, and the change of the entire hyperbolic surface is mainly adjusted by the width of the strips. It is still cumbersome to position and install a single strip in space.

[0005] 2. When the length of a single strip reaches 4m-6m, strip segments need to be used in the design to replace bends. The splicing of strip segments doubles the number of measuring points. If it is divided into four sections, the number of measuring points on a single strip increases to eight, which means there are more measuring points.

[0006] 3. Hyperbolic ceilings have high requirements for visual effects. However, since there are seams between the slats, the installation positioning of adjacent slats cannot be verified and checked against each other, and the installation accuracy cannot be guaranteed. Any slight deviation between adjacent panels may affect the visual effect. Summary of the invention

[0007] The purpose of the present invention is to provide a method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate, in order to solve the technical problems that the existing hollow style of the ceiling plate adopts the existing processing and positioning, the construction is complicated, the measuring points are numerous, and the installation accuracy cannot be guaranteed.

[0008] To achieve the above object, the present invention adopts the following technical solution: A method for measuring, positioning and installing an ultra-long curved aluminum plate. The installation steps are as follows: Step 1: In-depth design of the ceiling: According to the design, a ceiling model of the hyperbolic ceiling is established in BIM. In the ceiling model, the hyperbolic ceiling is designed as a group of vertically single-curved convex ceiling panels. The number and size of the ceiling panels and the size of the panel seams are determined. The width of each ceiling panel is the same, and the panel seams between adjacent ceiling panels are variable widths. Step 2: Design the instrument control station: Design the location of each instrument control station on the ground according to the size of the roof steel structure; Step 3: construct the roof steel structure; Step 4: Model the roof steel structure; Step 5: After fitting the data of the ceiling model in step 1 with the roof steel structure model in step 4, the installation process of the ceiling model is previewed on the roof steel structure model. Thus, the size, quantity and spatial position of each keel tube, keel tube clamp assembly, ceiling hanging assembly, the spatial position of the ceiling board and the installation points of each component can be determined. The fine-tuning measurement points corresponding to the installation points of the ceiling board need to be marked in advance; Step 6: According to the result obtained by data fitting in step 5, process each keel tube, keel tube clamp assembly, ceiling hanging assembly and ceiling board; Step 7: Install the keel pipe clamp assembly, and clamp the keel pipe clamp assembly to the roof steel structure; Step 8: Install the keel tube and connect and fix the keel tube to the keel tube clamp assembly; Step nine, installing the ceiling hanging assembly: hanging and installing the ceiling hanging assembly and the keel pipe; Step 10: Install the ceiling panel: Step a, lofting the plane position of a ceiling panel to be installed in the ceiling model onto the ground to form a horizontal projection control line; Step b, taking the horizontal projection control line as the starting point, using the vertical line function of the laser level, projecting the side lines of the ceiling board directly upward to form two ceiling board side installation control lines; Step c, sticking the Leica reflective sheet to the fine-tuning measuring points of each ceiling panel pre-marked in step 5; Step d, installing the temporary bracket for initial positioning: erecting the temporary bracket for initial positioning, the temporary bracket for initial positioning is detachably connected to the roof steel structure, using a level to control the top elevation of the temporary bracket for initial positioning to be the bottom elevation of the ceiling board, and the error of the top elevation of the temporary bracket for initial positioning is controlled within ±1mm; Step e, control the installation position of each ceiling panel as follows: Control the longitudinal position of the ceiling board: place the bottom surface of the ceiling board on the top surface of the temporary bracket for initial positioning; Control the horizontal position of the ceiling board: adjust the ceiling board, align the two sides of the ceiling board with the two sides of the ceiling board to install the control line; Control the chord height direction of the ceiling board: extract the design distance data between the keel tube and the ceiling board in the model, then use a tape measure to measure on site and adjust the actual distance between the two to the design distance. Three controls are used to position the ceiling panels and temporarily fix the ceiling panels to the ceiling hanging components; Step f, using Leica reflectors to measure with a total station to accurately adjust the posture of the ceiling panel; Step g, repeat steps a to f until all ceiling panels are constructed.

[0009] Each ceiling panel is divided into sections along the direction of the panel, with folds instead of curves, forming four layers of ceiling panel sections from bottom to top, namely the first panel section, the second panel section, the third panel section and the fourth panel section. During construction, construction is carried out layer by layer. After the first panel section is fully constructed, the second panel section is constructed, and so on until all the construction is completed.

[0010] In step 10, the steps for installing the first board section are as follows: Step e, controlling the installation position of the first plate segment: Control the longitudinal position of the ceiling board: place the bottom surface of the first board section on the top surface of the initial positioning temporary bracket; Control the horizontal position of the ceiling board: adjust the first board section, align the two sides of the ceiling board with the two sides of the ceiling board to install the control line; Control the chord height direction position of the ceiling board: extract the design distance data between the keel tube and the first board section in the model, then use a tape measure to measure on site and adjust the actual distance between the two to the design distance; Three types of controls are used to position the ceiling panel and temporarily fix the first panel section to the ceiling hanging assembly. Step f, then using the Leica reflector to measure with a total station to accurately adjust the posture of the first plate segment; Step g, repeating steps a to f until the construction of the first plate sections of all rows is completed.

[0011] In step 10, the steps for installing the second plate segment, the third plate segment and the fourth plate segment are as follows: Step e, controlling the installation position of the second plate segment: Control the longitudinal position of the ceiling board: control based on the position of the corresponding previous board section after precise adjustment, that is, the second board section is controlled based on the position of the first board section after precise adjustment, that is, the third board section is controlled based on the position of the second board section after precise adjustment, that is, the fourth board section is controlled based on the position of the third board section after precise adjustment; Control the lateral position of the ceiling panel: the same as the first panel section; Control the chord height direction position of the ceiling board: the method is the same as the first board section; The three controls are used to position the ceiling panels, and the second panel segment, the third panel segment and the fourth panel segment are temporarily fixed to the ceiling hanging components respectively. Step f, then using the Leica reflector and total station to measure and accurately adjust the postures of the second plate segment, the third plate segment, and the fourth plate segment; Step g, repeating steps a to f until all the second plate segments, the third plate segments and the fourth plate segments are constructed.

[0012] In step three, design and mark each structural control point on the roof steel structure, and obtain the coordinates of each structural control point; use a total station to check the position of each structural control point to ensure that it meets the installation accuracy requirements; In step 4, before modeling and scanning, target paper is affixed to each structural control point of the roof steel structure, and then the scanner is set up at a line-of-sight position on the ground to perform an overall three-dimensional scan of the roof steel structure. After scanning, a point cloud model is generated in BIM. When the point cloud model is spliced, the coordinates of each structural control point are brought into the point cloud model to obtain the coordinates of other points in the point cloud model relative to the structural control points, thereby completing the modeling of the roof steel structure model.

[0013] In step 4, the distance between scanner stations is 5m. Target balls are used when scanning. There are 4 target balls. Avoid placing the target balls in a straight line.

[0014] In step 5, the installation points of each component include: Determine the installation points of the clamps on the roof steel structure that are connected to the keel tube clamp assembly; Determine the mounting points on the keel tube that connect to the ceiling mounting assembly; Determine the ceiling installation points on the ceiling board that are connected to the ceiling hanging components, and pre-mark the fine-tuning measurement points at the corresponding positions of the ceiling installation points.

[0015] In step 7, the specific method for installing the keel tube clamp assembly is as follows: the total station is set up on the total station site designed in step 2, and after the station orientation is completed, the clamp installation point in step 5 is laid out, and the keel tube clamp assembly is laid out using a Leica reflector for the front view, and after the layout is completed, a mark is made, and then the keel tube clamp assembly is clamped and installed with the roof steel structure; In step nine, the specific method of installing the ceiling hanging assembly is as follows: the total station is set up on the total station site, and after the station orientation is completed, the hanging installation point is laid out according to the hanging installation point in step six, and the front view uses a Leica reflector to lay out the hanging installation point, and after the layout is completed, mark it, and then hang the ceiling hanging assembly and the keel pipe for installation; In step ten, when constructing each layer of suspended ceiling panels, every five rows of suspended ceiling panels on each layer are accurately positioned by a total station, and a detection ruler is used between the five rows of suspended ceiling panels to control the surface curvature and installation position.

[0016] In step 10, before measuring with a level instrument, check whether the instrument's angle error is within the allowable range. When setting the level point of the level instrument, an L-shaped settlement observation nail is embedded in the roof steel structure as a backsight point to reduce the error when setting up the ruler. When measuring with a level instrument, there should be no less than rear-sight observation points to prevent accidental errors caused by incorrect position when reading or setting up the scale. A level bubble is set on the scale to ensure that the scale is in a plumb state during measurement.

[0017] The roof steel structure includes a set of vertical single-curved convex main beams arranged at intervals. The keel tube includes a set of connecting tubes that span the entire roof steel structure and are closely attached to the main beam of the structure and are arranged at intervals. The connecting tubes are horizontally convex in a single curved arc. The clamp installation point is set on the main beam of the structure. The top of the keel tube clamp assembly is fixedly connected to the main beam clamp at the clamp installation point, and the bottom of the keel tube clamp assembly is fixedly connected to the keel tube clamp. The hanging installation point is set on the keel tube, the top of the ceiling hanging assembly is adjustably or fixedly connected to the keel tube corresponding to the hanging installation point, the ceiling installation point is set on the ceiling board, and the bottom of the ceiling hanging assembly is adjustably or fixedly connected to the ceiling board corresponding to the ceiling installation point.

[0018] Compared with the prior art, the present invention has the following characteristics and beneficial effects: 1. Compared with the existing design of equal seams and unequal panels, the present invention adopts the method of "equal panels and unequal seams". The width of the ceiling panel is a fixed value, and the hyperbolic surface is adjusted singly by controlling the posture of a single ceiling panel. There is no tolerance in the length direction of most panels, and the tolerance in the short side direction can be ignored. Only the seam dividing method is changed, and there is no obvious difference in visual effect.

[0019] 2. Simplify the structure of the connecting parts, design the keel pipe clamp assembly and the ceiling hanging assembly to achieve the connection between the ceiling panel and the main beam of the steel structure, and reduce the measurement and positioning workload before installing the ceiling panel.

[0020] 3. After the width of the ceiling panels are designed to be the same, the lateral position of the ceiling panels can be projected onto the ground according to the BIM model, and then a laser level can be clamped to control and guide the edge position of the installed ceiling panels using the laser line, thereby controlling the lateral position of the ceiling panels and further simplifying the lateral positioning.

[0021] 4. After the width of the ceiling panels is designed to be the same, the horizontal positioning is controlled by the panel edge, so that the longitudinal elevation of the ceiling panel section can be controlled by the longitudinal elevation of the previous section. Therefore, a temporary bracket is designed specifically.

[0022] The first board section is the reference for the starting position of each column of strips. The installation accuracy of the first board section directly determines the installation quality of the strips in this column. In order to ensure the accuracy of the starting position of each column of strips and the convenience of installation, a horizontal bracket is set before the installation of the aluminum plate. The bracket elevation is controlled by a level, and the bracket elevation error is controlled within ±1mm. The elevation of the first board section of the ceiling board is set out on the temporary bracket to stabilize the elevation of the first board section and control the longitudinal position of the ceiling board.

[0023] 5. Read the chord height data in the built model, and then use a tape measure to measure the actual distance between the keel tube and the ceiling board on site and adjust it to the designed distance to control the chord height direction of the ceiling board, making the construction simple.

[0024] The present invention can well realize the installation of ceiling strips in the hollow design of ceiling panels. The ceiling strips adopt two steps of positioning and fine-tuning the posture, and three controls are used to realize the most important temporary positioning fixation. Then, the Leica reflector is used to measure the posture of the ceiling panel with a total station, taking into account the spatial installation position accuracy of each ceiling panel and the final forming appearance of the hyperbolic ceiling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the overall shape structure of the ceiling board in the present invention.

[0027] Figure 2 yes Figure 1 Schematic diagram of the structure of the ceiling panel segments and keel tubes.

[0028] Figure 3 It is a schematic diagram of the connection system structure of the ceiling board of the present invention.

[0029] Figure 4 yes Figure 3 Schematic diagram of the setting position of the temporary bracket for starting positioning.

[0030] Figure 5 yes Figure 3 A partial enlarged view of the .

[0031] Figure 6 It is the projection position of the horizontal projection control line and the ceiling panel edge installation control line in step ten of the construction method of the present invention.

[0032] Figure 7 It is the extraction position of the designed distance in step ten of the construction method of the present invention.

[0033] Figure 8 It is a schematic diagram of the posture adjustment of the ceiling hanging components and the corresponding settings of the panel sections.

[0034] Fig. 9 It is a plan view of the total station setting position.

[0035] Figure numbers: 1-structural main beam, 2-keel tube, 3-keel tube clamp assembly, 4-ceiling hanging assembly, 5-ceiling board, 51-first board section, 52-second board section, 53-third board section, 54-fourth board section, 6-starting positioning temporary bracket, 7-board seam, 8-horizontal projection control line, 9-ceiling board edge installation control line, 10-design distance, 11-total station. DETAILED DESCRIPTION

[0036] See Example Figure 1-5 As shown, the roof steel structure includes a group of structural main beams 1 that are vertically protruding in a single-curved arc and arranged at intervals, and the keel pipes 2 include a group of connecting pipes that span the entire roof steel structure and are closely attached to the structural main beams and arranged at intervals, and the connecting pipes are horizontally protruding in a single-curved arc.

[0037] The clamp installation point is set on the main beam 1 of the structure, the top of the keel tube clamp assembly 3 is fixedly connected with the clamp of the main beam 1 at the clamp installation point, and the bottom of the keel tube clamp assembly 3 is fixedly connected with the keel tube 2 clamp.

[0038] The hanging installation point is set on the keel tube 2, the top of the ceiling hanging component 4 is adjustably or fixedly connected to the keel tube 2 corresponding to the hanging installation point, the ceiling installation point is set on the ceiling board 5, and the bottom of the ceiling hanging component 4 is adjustably or fixedly connected to the ceiling board 5 corresponding to the ceiling installation point.

[0039] Each ceiling board 5 is divided into sections along the board direction by folding instead of bending. In this embodiment, four layers of ceiling board sections are formed from bottom to top, namely the first board section 51, the second board section 52, the third board section 53 and the fourth board section 54. During construction, the first board section 51 is constructed layer by layer, and the second board section 52 is constructed after the first board section 51 is fully constructed, and so on until all the construction is completed. In this embodiment, the first board section 51 is a vertical board, and the other board sections are single curved arc boards.

[0040] The measurement, positioning and installation steps of this super-long curved aluminum plate are as follows: Construction equipment includes 3D scanners, total stations, levels and laser levels.

[0041] The measurement, positioning and installation steps of this super-long curved aluminum plate are as follows: Step 1, in-depth design of the ceiling: according to the design, a ceiling model of the hyperbolic ceiling is established in BIM. In the ceiling model, the hyperbolic ceiling is designed as a group of vertical single-curved convex ceiling panels 5. The number and size of the ceiling panels 5 and the size of the panel joints are determined. The width of each ceiling panel 5 is the same, and the panel joints 7 between adjacent ceiling panels 5 are of variable width.

[0042] Step 2: Design the instrument control station: According to the size of the roof steel structure, design the location of each instrument control station on the ground.

[0043] Step three, construct the roof steel structure; design and mark each structural control point on the roof steel structure, and obtain the coordinates of each structural control point; review the structural control point: use the total station 11 to review the position of each structural control point reserved in step three to meet the installation accuracy requirements.

[0044] Step 4: Model the roof steel structure; In step 4, before modeling and scanning, target paper is pasted on each structural control point of the roof steel structure, and then the scanner is set up at a visible position on the ground to perform an overall three-dimensional scan of the roof steel structure. After scanning, a point cloud model is generated in BIM. When the point cloud model is spliced, the coordinates of each structural control point are brought into the point cloud model to obtain the coordinates of other points in the point cloud model relative to the structural control points, and the modeling of the roof steel structure model is completed; In step 4, the distance between scanner stations is 5m. Target balls are used when scanning. There are 4 target balls. Avoid placing the target balls in a straight line.

[0045] Step 5: After fitting the data of the suspended ceiling model in step 1 with the roof steel structure model in step 4, the installation process of the suspended ceiling model is previewed on the roof steel structure model: Determine the size, quantity and spatial position of each keel tube 2, keel tube clamp assembly 3, ceiling hanging assembly 4, the spatial position of the ceiling board 5 and the installation point of each component; Determine the clamp installation point on the roof steel structure connected to the keel tube clamp assembly 3; Determine the mounting point on the keel tube 2 that is connected to the ceiling mounting assembly 4; Determine the ceiling installation point on the ceiling plate 5 connected to the ceiling hanging assembly 4, wherein the ceiling plate 5 needs to pre-mark the fine-tuning measurement point at the corresponding position of the installation point to facilitate on-site adjustment.

[0046] Step six, according to the result obtained by data fitting in step five, process each keel tube 2, keel tube clamp assembly 3, ceiling hanging assembly 4 and ceiling board 5.

[0047] Step seven, install the keel tube clamp assembly. The specific method for installing the keel tube clamp assembly is: clamp the keel tube clamp assembly to the roof steel structure; set up the total station 11 on the total station site designed in step two, and after the station orientation is completed, lay out the clamp installation point according to step five, and use Leica reflective sheet for forward viewing to lay out the keel tube clamp assembly. After the layout is completed, mark it, and then clamp the keel tube clamp assembly to the roof steel structure.

[0048] Step eight, install the keel tube, and connect and fix the keel tube 2 and the keel tube clamp assembly 3.

[0049] Step nine, install the ceiling hanging component: hang and install the ceiling hanging component 4 and the keel tube 2; the specific method of installing the ceiling hanging component is: set up the total station 11 on the total station site, and after the station orientation is completed, the hanging and installation points in step six are laid out, and the Leica reflective sheet is used for forward vision to lay out the hanging and installation points. After the layout is completed, mark it, and then hang and install the ceiling hanging component 4 and the keel tube 2.

[0050] Step 10, A. The steps for installing the first plate segment 51 are as follows: Step a, see Figure 6 As shown, a ceiling panel 5 to be installed is laid out on the ground at a plane position in the ceiling model to form a horizontal projection control line 8; Step b, see Figure 6 As shown, with the horizontal projection control line as the starting point, the vertical line function of the laser level is used to directly project the side lines of the first board section 51 upward to form two ceiling board edge installation control lines 9; since the first board section 51 is a vertical board, the ceiling board edge installation control lines 9 of the board section coincide with the side edges of the board body; Step c, sticking the Leica reflector to the fine-tuning measuring point of the first plate segment 51 pre-marked in step 5; Step d, installing the temporary initial positioning bracket 6: erecting the temporary initial positioning bracket 6, the temporary initial positioning bracket 6 is detachably connected to the roof steel structure, and the top elevation of the temporary initial positioning bracket 6 is controlled by a level to be the bottom elevation of each first plate segment 51, and the error of the top elevation of the temporary initial positioning bracket 6 is controlled within ±1mm; Before measuring with a level, check whether the instrument's i-angle error is within the allowable range; when setting the level point of the level, use an L-shaped settlement observation nail pre-buried in the roof steel structure as a backsight point to reduce the error when setting up the ruler; when measuring with a level, there should be no less than 2 backsight observation points to prevent accidental errors caused by position errors when reading or setting up the ruler, and a level bubble is set on the tower ruler to ensure that the tower ruler is in a plumb state during measurement; Step e, controlling the installation position of the first plate segment 51: Control the longitudinal position of the ceiling panel: place the bottom surface of the first panel section 51 on the top surface of the initial positioning temporary bracket 6; Control the lateral position of the ceiling board: adjust the first board section 51, and align the two side edges of the ceiling board with the two side edges of the ceiling board to install the control lines; Control the chord height direction position of the ceiling board: extract the design distance data between the keel tube 2 and the first board section 51 in the model, then use a tape measure to measure on site and adjust the actual distance between the two to the design distance; since the first board section 51 is a vertical board, extract the design distance 10 between the keel tube 2 and the first board section 51, that is, the horizontal distance between the two; The three controls are used to position the ceiling panel and temporarily fix the first panel section 51 to the ceiling hanging assembly 4. Step f, then using the Leica reflector and the total station 11 to measure and accurately adjust the posture of the first plate segment 51; Step g, repeating steps a to f until the construction of the first plate segments 51 of all rows is completed.

[0051] B. The steps for installing the second plate section 52 are as follows: Step e, controlling the installation position of the second plate segment 52: Controlling the longitudinal position of the ceiling panel: controlling based on the position of the corresponding previous panel section, i.e., the first panel section 51, after precise adjustment; Controlling the lateral position of the ceiling panel: the same as the first panel section 51; Controlling the chord height direction position of the ceiling board: the method is the same as that of the first board section 51; The three controls are used to position the ceiling panel and temporarily fix the second panel section to the ceiling hanging assembly 4. Step f, then using the Leica reflector and the total station 11 to measure and accurately adjust the posture of the second plate segment 52; Step g, repeating steps a to f until all second plate sections 52 are constructed.

[0052] C. The steps for installing the third plate segment 53 are as follows: Step e, controlling the installation position of the third plate segment 53 of the first row: Control the longitudinal position of the ceiling panel: control based on the position of the first panel section, i.e., the second panel section 52, after precise adjustment; Controlling the lateral position of the ceiling panel: in the same manner as the first panel section 51; Controlling the chord height direction position of the ceiling panel: in the same manner as the first panel section 51; The three controls are used to position and temporarily fix the ceiling panels, and then the posture of the ceiling panels is precisely adjusted by using a total station 11 with Leica reflectors; Step f, then using the Leica reflector and the total station 11 to measure and accurately adjust the posture of the third plate segment 53; Step g, repeating steps a to f until the construction of the third plate segments 53 of all rows is completed.

[0053] D. The steps for installing the fourth plate segment 54 are as follows: Step e, controlling the installation position of the fourth plate segment 54: Control the longitudinal position of the ceiling panel: control based on the position of the upper panel segment, i.e., the third panel segment 53, after precise adjustment; Controlling the lateral position of the ceiling panel: in the same manner as the first panel section 51; Controlling the chord height direction position of the ceiling panel: in the same manner as the first panel section 51; Step f, then using the Leica reflector and the total station 11 to measure and accurately adjust the posture of the fourth plate segment 54; Step g, repeating steps a to f until the construction of the fourth plate segments 54 of all rows is completed.

[0054] In step ten, when each layer of suspended ceiling panels is constructed, each layer may be precisely positioned every five rows of suspended ceiling panels by a total station 11, and a detection ruler may be used between the five rows of suspended ceiling panels to control the surface curvature and installation position.

[0055] The control line 9 for installing the edge of the ceiling board is generally arranged at the end of the board section, and can be added at other positions if necessary. The extraction position of the designed distance 10 corresponds to the setting position of the ceiling hanging component 4.

[0056] In this embodiment, see Figure 7-9 As shown, the total station 11 is arranged on a building platform below the ceiling plate. Fig. 9 The total station 11 measures the overall structure of the middle edge ceiling board at three measuring points in turn. When measuring with the total station, it should be noted that since each ceiling board is independent, try to use a fixed station measurement and a fixed backsight point when setting up the total station site to reduce the cumulative error. When measuring the height of the instrument, it should be measured from three directions respectively, and the readings should be estimated to the last digit of the millimeter. The average value of the three directions is taken to determine the height of the instrument. The backsight point should be fixed on the structural column by forced centering to reduce the backsight centering error. The measurement and layout data should be directly imported into the instrument using the coordinates extracted by the design to prevent accidental errors caused by manual input. Before each measurement, the total station should be checked and set up, such as: prism constant, ambient temperature, air pressure, etc. Calibrate the instrument regularly.

Claims

1. A method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate, characterized in that: The installation steps are as follows: Step 1, detailed ceiling design: according to the design, a ceiling model of a hyperbolic ceiling is established in BIM, and the hyperbolic ceiling is designed as a group of vertically single-curved convex ceiling panels (5) in the ceiling model, and the number and size of the ceiling panels (5) and the size of the panel seams are determined. The width of each ceiling panel (5) is the same, and the panel seams (7) between adjacent ceiling panels (5) are of variable width; Step 2: Design the instrument control station: Design the location of each instrument control station on the ground according to the size of the roof steel structure; Step 3: construct the roof steel structure; Step 4: Model the roof steel structure; Step 5: After fitting the data of the ceiling model in step 1 with the roof steel structure model in step 4, the installation process of the ceiling model is previewed on the roof steel structure model. Thus, the size, quantity and spatial position of each keel tube (2), keel tube clamp assembly (3), ceiling hanging assembly (4), the spatial position of the ceiling board (5) and the installation point of each component are determined, wherein the ceiling board (5) needs to mark the fine adjustment measurement points in advance at the corresponding positions of the installation points; Step six, according to the result obtained by data fitting in step five, processing each keel tube (2), keel tube clamp assembly (3), ceiling hanging assembly (4) and ceiling board (5); Step 7: Install the keel pipe clamp assembly, and clamp the keel pipe clamp assembly to the roof steel structure; Step eight, installing the keel tube, connecting and fixing the keel tube (2) and the keel tube clamp assembly (3); Step nine, installing the ceiling hanging assembly: hanging and installing the ceiling hanging assembly (4) and the keel tube (2); Step 10: Install the ceiling panel: Step a, lofting a ceiling panel (5) to be installed on the ground at a plane position in the ceiling model to form a horizontal projection control line (8); Step b, taking the horizontal projection control line (8) as the starting point, using the vertical line function of the laser level, directly projecting the side lines of the ceiling board (5) upward to form two ceiling board side installation control lines (9); Step c, sticking the Leica reflective sheet to the fine-tuning measuring points of each ceiling panel (5) pre-marked in step 5; Step d, installing the temporary bracket for initial positioning: erecting the temporary bracket for initial positioning (6), the temporary bracket for initial positioning (6) being detachably connected to the roof steel structure, using a level to control the top elevation of the temporary bracket for initial positioning (6) to be the bottom elevation of the ceiling board, and the error of the top elevation of the temporary bracket for initial positioning (6) being controlled within ±1 mm; Step e, control the installation position of each ceiling panel as follows: Controlling the longitudinal position of the ceiling panel: placing the bottom surface of the ceiling panel (5) on the top surface of the initial positioning temporary bracket (6); Control the lateral position of the ceiling panel: adjust the ceiling panel, align the two sides of the ceiling panel with the two sides of the ceiling panel to install the control lines (9); Control the chord height direction position of the ceiling board: extract the design distance (10) data between the keel tube (2) and the ceiling board (5) in the model, then use a tape measure to measure on site and adjust the actual distance between the two to the design distance. The three controls position the ceiling panel and temporarily fix the ceiling panel (5) and the ceiling hanging assembly (4); Step f, using a Leica reflector and a total station (11) to measure and precisely adjust the posture of the ceiling panel (5); Step g, repeating steps a to f until all ceiling panels (5) are constructed.

2. The method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate according to claim 1 is characterized in that: Each ceiling board (5) is divided into sections along the board direction by folding instead of bending, and the whole forms four layers of ceiling board sections from bottom to top, namely a first board section (51), a second board section (52), a third board section (53) and a fourth board section (54). During construction, the first board section (51) is constructed layer by layer, and the second board section (52) is constructed after the first board section (51) is fully constructed, and so on until all the construction is completed.

3. The method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate according to claim 2 is characterized in that: In step 10, the steps for installing the first board section are as follows: Step e, controlling the installation position of the first plate segment (51): Controlling the longitudinal position of the ceiling panel: placing the bottom surface of the first panel section (51) on the top surface of the initial positioning temporary bracket (6); Control the lateral position of the ceiling panel: adjust the first panel section (51) and align the two side edges of the ceiling panel with the two side edges of the ceiling panel to install the control lines (9); Controlling the chord height direction position of the ceiling panel: extracting the design distance data between the keel tube (2) and the first panel section (51) in the model, then measuring the actual distance between the two on site with a tape measure and adjusting the actual distance between the two to the design distance (10); The three controls are used to position the ceiling panel and temporarily fix the first panel section (51) to the ceiling hanging assembly (4). Step f, then using a Leica reflector and a total station (11) to measure and accurately adjust the posture of the first plate segment (51); Step g, repeating steps a to f until the construction of the first plate segments (51) of all rows is completed.

4. The method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate according to claim 3 is characterized in that: In step 10, the steps for installing the second plate segment, the third plate segment and the fourth plate segment are as follows: Step e, controlling the installation position of the second plate segment (52): Controlling the longitudinal position of the ceiling panel: controlling based on the position of the corresponding previous panel segment after precise adjustment, i.e., the second panel segment (52) is controlled based on the position of the first panel segment (51) after precise adjustment, i.e., the third panel segment (53) is controlled based on the position of the second panel segment (52) after precise adjustment, i.e., the fourth panel segment (54) is controlled based on the position of the third panel segment (53) after precise adjustment; Controlling the lateral position of the ceiling panel: in the same manner as the first panel section (51); Controlling the chord height direction position of the ceiling board: the method is the same as that of the first board section (51); The three controls are used to position the ceiling panel, and the second panel segment, the third panel segment and the fourth panel segment are temporarily fixed to the ceiling hanging assembly (4) respectively. Step f, then using the Leica reflector and a total station (11) to measure and accurately adjust the postures of the second plate segment, the third plate segment, and the fourth plate segment; Step g, repeating steps a to f until all the second plate segments, the third plate segments and the fourth plate segments are constructed.

5. The method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate according to claim 1 is characterized in that: In step 3, each structural control point is designed and marked on the roof steel structure, and the coordinates of each structural control point are obtained; the position of each structural control point is checked using a total station (11) to ensure that it meets the installation accuracy requirements; In step 4, before modeling and scanning, target paper is affixed to each structural control point of the roof steel structure, and then the scanner is set up at a line-of-sight position on the ground to perform an overall three-dimensional scan of the roof steel structure. After scanning, a point cloud model is generated in BIM. When the point cloud model is spliced, the coordinates of each structural control point are brought into the point cloud model to obtain the coordinates of other points in the point cloud model relative to the structural control points, thereby completing the modeling of the roof steel structure model.

6. The method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate according to claim 5 is characterized in that: In step 4, the distance between scanner stations is 5m. Target balls are used when scanning. There are 4 target balls. Avoid placing the target balls in a straight line.

7. The method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate according to claim 2 is characterized in that: In step 5, the installation points of each component include: Determine the installation point of the clamp on the roof steel structure that is connected to the keel tube clamp assembly (3); Determine the mounting point on the keel tube (2) for connecting with the ceiling mounting assembly (4); The ceiling installation point on the ceiling plate (5) connected to the ceiling hanging assembly (4) is determined, and the fine adjustment measurement point is pre-marked at the corresponding position of the ceiling installation point.

8. The method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate according to claim 7 is characterized in that: In step 7, the specific method for installing the keel tube clamp assembly is as follows: the total station (11) is set up on the total station site designed in step 2, and after the station orientation is completed, the clamp installation point in step 5 is laid out, and the keel tube clamp assembly is laid out using a Leica reflector for front vision, and after the layout is completed, a mark is made, and then the keel tube clamp assembly is clamped and installed with the roof steel structure; In step nine, the specific method for installing the ceiling hanging assembly is as follows: the total station (11) is set up on the total station site, and after the station orientation is completed, the hanging installation point is laid out according to the hanging installation point in step six, and the front view uses a Leica reflector to lay out the hanging installation point, and after the layout is completed, it is marked, and then the ceiling hanging assembly (4) and the keel tube (2) are hung and installed; In step 10, when constructing each layer of suspended ceiling panels, every five rows of suspended ceiling panels on each layer are accurately positioned by a total station (11), and a detection ruler is used between the five rows of suspended ceiling panels to control the surface curvature and installation position.

9. The method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate according to any one of claims 1 to 4, characterized in that: In step 10, before measuring with a level instrument, check whether the instrument's angle error is within the allowable range. When setting the level point of the level instrument, an L-shaped settlement observation nail is embedded in the roof steel structure as a backsight point to reduce the error when setting up the ruler. When measuring with a level instrument, there should be no less than two rear-sight observation points to prevent accidental errors caused by incorrect position when reading or setting up the scale. A level bubble is set on the scale to ensure that the scale is in a plumb state during measurement.

10. The method for measuring, positioning and installing an ultra-long arc-shaped aluminum plate according to any one of claims 1 to 8, characterized in that: The roof steel structure comprises a set of vertical single-curved outwardly convex structural main beams (1) arranged at intervals. The keel pipe (2) comprises a group of connecting pipes which span the entire roof steel structure and are closely attached to the main structural beam and are arranged at intervals. The connecting pipes are horizontally convex in a single-curved arc. The clamp installation point is set on the main beam (1) of the structure, the top of the keel tube clamp assembly (3) is fixedly connected to the clamp of the main beam (1) of the structure at the clamp installation point, and the bottom of the keel tube clamp assembly (3) is fixedly connected to the clamp of the keel tube (2). The hanging installation point is set on the keel tube (2), the top of the ceiling hanging component (4) is adjustably or fixedly connected to the keel tube (2) corresponding to the hanging installation point, the ceiling installation point is set on the ceiling board (5), and the bottom of the ceiling hanging component (4) is adjustably or fixedly connected to the ceiling board (5) corresponding to the ceiling installation point.

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