A steel beam deviation correction device and deviation correction method for special-shaped skylight

Abstract

The present application relates to the technical field of steel structure engineering construction, and discloses a steel beam deviation correction device for a special-shaped canopy and a deviation correction method thereof, which includes an umbrella column and a steel beam installed at the top of the umbrella column, and also includes temporary supports corresponding to the steel beam connection coordinates located according to the BIM model, and a mounting seat is provided at the top of each temporary support, and a steel structure connector is sleeved at the end of each steel beam, and the ends of two adjacent steel beams are connected by the same steel structure connector, and the steel structure connector connecting the two steel beams corresponds to the mounting seat one by one, and can be detachably arranged on the corresponding mounting seat, and a positioning sensor is arranged at the top center of the steel structure connector on the mounting seat, and the positioning sensor is electrically connected to an external three-dimensional laser scanner, and an adjustment module electrically connected to the PC end is also arranged on the mounting seat. The present application has the effect of improving the installation accuracy of the canopy steel beam.

Description

Technical Field

[0001] The present application relates to the technical field of steel structure engineering construction, and in particular to a steel beam deviation correction device and a deviation correction method for a special-shaped skylight. Background Art

[0002] The special-shaped skylight is an innovative architectural structure design, which is usually used for the roof or exterior wall of large public buildings, commercial complexes, stadiums, exhibition centers, etc. The special-shaped skylight is characterized by its irregular shape and unique structure, which can create a striking visual effect while providing functions such as sunshade, lighting, and heat preservation.

[0003] As a unique form of modern architecture, the special-shaped canopy is difficult to construct, especially the precise installation of steel beams is the key to ensure the overall stability and beauty of the canopy. However, the special-shaped canopy has ups and downs in shape, so it is very easy to cause deviations in the steel beams during installation due to various factors such as construction errors and material deformation. Due to the special shape of the canopy, it is time-consuming and laborious to check the installation accuracy of the steel beams during the installation process, and the effect is not good. Therefore, how to improve the installation accuracy of the steel beams of the canopy has become an urgent problem to be solved. Summary of the invention

[0004] In order to improve the installation accuracy of the steel beams of the canopy, the present application provides a steel beam deviation correction device and a deviation correction method for a special-shaped canopy.

[0005] The present application provides a steel beam deviation correction device and a deviation correction method for a special-shaped skylight, which adopts the following technical solutions:

[0006] A steel beam deviation correction device for an irregular canopy comprises an umbrella column and a steel beam installed at the top of the umbrella column, and also comprises temporary supports corresponding to the steel beam connection coordinates located according to a BIM model, a mounting seat is arranged on the top of each temporary support, a steel structure connector is sleeved on the end of each steel beam, and the ends of two adjacent steel beams are connected by the same steel structure connector, the steel structure connector connecting the two steel beams corresponds to the mounting seat one by one, and is detachably arranged on the corresponding mounting seat, a positioning sensor is arranged at the center of the top of the steel structure connector located on the mounting seat, the positioning sensor is electrically connected to an external three-dimensional laser scanner, and an adjustment module electrically connected to a PC is also arranged on the mounting seat, the precise positions of the steel beams obtained by the positioning sensors collected by the three-dimensional laser scanner and the BIM model data are compared and integrated on the PC to generate positioning deviation correction data, and the adjustment module receives the deviation correction instruction from the PC to perform precise height adjustment on the corresponding steel structure connector and the steel beam end connected thereto.

[0007] By adopting the above technical solution, before the construction of the canopy steel beam, temporary supports and mounting bases are first laid out at the construction site according to the BIM model. Subsequently, the steel beams are installed radiating from the umbrella column to the surrounding areas, and the steel beams are installed to the predetermined positions and connected through steel structure connectors. When the steel beam reaches one-third of the construction progress, a 3D laser scanner is used to scan the position of the positioning sensor at the connection of the steel beam, and the collected information is integrated into a point cloud model, which is compared with the BIM model to finally generate correction data. Then, the steel beam is precisely adjusted through the adjustment module on the mounting base to improve the accuracy of the steel beam installation position, thereby improving the installation accuracy of the canopy steel beam.

[0008] Optionally, the mounting seat includes a mounting base mounted on the top of the temporary support and a mounting top seat arranged on the top of the mounting base, and the adjustment module is a CNC jack arranged between the mounting base and the mounting top seat, and the base of the CNC jack is fixedly set on the mounting base, and the top end of the extending rod thereof is fixedly set on the mounting top seat.

[0009] By adopting the above technical solution and using the CNC jack as an adjustment module, the height of the end of the steel beam can be accurately adjusted, which is easy to operate and has high adjustment accuracy.

[0010] Optionally, a plurality of guide columns are arranged around the CNC jack on the mounting base, the plurality of guide columns are arranged parallel to the extension and retraction direction of the CNC jack, and a guide hole for the guide columns to pass through is opened on the mounting top seat.

[0011] By adopting the above technical solution, the cooperation of the guide column and the guide hole can improve the stability and accuracy of the CNC jack during the adjustment process, thereby reducing the possibility of deviation or shaking of the installation top seat, thereby improving the adjustment accuracy and reliability of the correction device.

[0012] Optionally, a support seat is provided on the top of the mounting top seat at the connection center of the two steel beams, and the steel structure connecting part is installed on the support seat. Support plates are rotatably provided on the support seat corresponding to the steel beams on both sides, and a first torsion spring is sleeved on the rotating shaft where the support plate is rotatably connected to the support seat.

[0013] By adopting the above technical solution, the support plate is used to provide support force for the steel beam during the deviation correction process, thereby improving the stability and safety of the steel beam during the installation process.

[0014] Optionally, each of the supporting pallets is parallel to the corresponding steel beam and is set to match the width of the steel beam side plate, and each of the supporting pallets is provided with a clamping member for clamping the steel beam side plate, and the clamping member is an L-shaped clamping plate hinged on both sides of the width direction of the supporting pallet, the openings of the two clamping plates are arranged opposite to each other, and a second torsion spring is sleeved at the hinge axis between each of the clamping plates and the side wall of the supporting pallet, and when the second torsion spring is in a natural state, the steel beam side plate is limited between the clamping plate and the supporting pallet.

[0015] By adopting the above technical solution, the side plates of the steel beams are clamped by clamping plates before the ends of the steel beams are connected to each other, which can further improve the stability of the steel beams during the installation process.

[0016] Optionally, the end of the clamping plate away from the rotating shaft is chamfered toward the supporting plate, and an invisible handle is also provided on the side wall of the clamping plate away from the clamping plate and the steel beam.

[0017] By adopting the above technical solution, the chamfer setting makes it easier for the clamping plate to clamp the side plate of the steel beam, which can reduce damage to the side plate of the steel beam; the setting of the invisible handle makes it easier for construction workers to open and close the clamping plate, thereby improving the convenience of using the clamping plate when clamping and supporting the steel beam.

[0018] Optionally, an installation groove is recessed on the side wall in the middle part of the top plate of the steel structure connector corresponding to the positioning sensor, and an elastic snap-in protrusion is provided on the inner side wall of the installation groove, and a snap-in groove is provided on the side wall of the positioning sensor corresponding to the snap-in protrusion. When the positioning sensor is inserted into the installation groove until the snap-in protrusion is snapped into the snap-in groove, the positioning sensor and the steel structure connector are accurately aligned.

[0019] By adopting the above technical solution, the snap-fit ​​cooperation between the positioning sensor and the steel structure connector can realize the rapid installation and precise positioning of the positioning sensor, and also facilitate the subsequent welding and fixing of the steel beam. The positioning sensor can be retrieved and wait for reuse, thereby reducing construction costs.

[0020] Optionally, a pin joint is provided at the top of the umbrella rib, and a pin plug-in plate is provided at the bottom of the steel structure connecting piece at the end of the steel beam located on the top of the umbrella rib. The pin plug-in plate is plugged into the pin joint, and the pin plug-in plate and the pin joint are rotationally matched.

[0021] By adopting the above technical solution and utilizing the rotational cooperation between the pin shaft plug-in plate and the pin shaft joint, convenience is provided for the steel beam deviation correction process.

[0022] Optionally, a deviation correction method for a special-shaped skylight steel beam deviation correction device comprises the following steps:

[0023] S1. Import the original design drawings through the BIM model system on the PC to carry out in-depth design, and use a point on a rib column on site as a reference point to correspond to the in-depth drawings of the BIM model to clarify the installation position and coordinates of each steel beam;

[0024] S2. Arrange and install several temporary supports according to the installation position and coordinates of each steel beam, and set a mounting seat on each temporary support;

[0025] S3. Install steel beams radiating from the center of the umbrella rib column to the surrounding areas. During the installation process, with the support of the installation seat, the ends of two adjacent steel beams are covered with steel structure connectors;

[0026] S4. When the construction of the steel beam reaches one-third of the construction progress, use a 3D laser scanner to scan the position of the positioning sensor;

[0027] S5. After data collection is completed, a point cloud model that meets the requirements of collision analysis is generated through point cloud import, noise reduction, splicing, elimination, export and other steps;

[0028] S6. Overlay the point cloud model with the BIM model on the PC. After overlaying, the software is used for comparative analysis to identify the deviation, display the location where the error exists, and generate correction data.

[0029] S7. The PC sends instructions to the corresponding CNC jack according to the correction data to accurately adjust the height of the corresponding steel structure connector and the steel beam end connected thereto.

[0030] By adopting the above technical solution, this correction method combines the BIM model and the 3D laser scanner, which not only realizes the real-time monitoring and precise adjustment of the installation position of the steel beam, but also improves the installation accuracy and construction quality.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. Before the construction of the canopy steel beam, first lay out temporary supports and mounting bases at the construction site according to the BIM model. Then, install the steel beams radiating from the center of the umbrella column to the surrounding areas, and install the steel beams to the predetermined positions and connect them through steel structure connectors. When the steel beam reaches one-third of the construction progress, use a 3D laser scanner to scan the position of the positioning sensor at the connection of the steel beam, and integrate the collected information into a point cloud model, compare it with the BIM model, and finally generate correction data. Then, use the adjustment module on the mounting base to accurately adjust the steel beam to improve the accuracy of the steel beam installation position, thereby improving the installation accuracy of the canopy steel beam;

[0033] 2. Using CNC jack as adjustment module can realize accurate adjustment of the height of the end of steel beam, which is easy to operate and has high adjustment accuracy;

[0034] 3. The cooperation of the guide column and the guide hole can ensure the stability of the mounting top seat during the up and down movement, thereby improving the reliability of the correction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0036] Figure 2 It is an exploded diagram showing the connection relationship between the positioning sensor and the steel structure connector in the embodiment of the present application.

[0037] Figure 3 It is a schematic diagram showing the connection relationship between a single set of temporary supports, a mounting base and a steel beam in an embodiment of the present application.

[0038] Figure 4 It is a schematic diagram showing the connection relationship between the clamping plate and the supporting plate in the embodiment of the present application.

[0039] Description of reference numerals:

[0040] 1. Umbrella rib column; 11. Pin joint; 2. Temporary support; 21. Connecting bolt; 3. Steel beam; 4. Mounting seat; 41. Mounting base; 411. Guide column; 42. Mounting top seat; 421. Guide hole; 422. Rubber pad; 5. Adjustment module; 6. Steel structure connector; 61. Pin plug-in plate; 62. Mounting slot; 63. Plug-in slot; 621. Elastic snap-in protrusion; 7. Positioning sensor; 71. Plug-in slot; 8. Support seat; 81. Plug-in block; 82. First torsion spring; 9. Support tray; 91. Clamp; 911. Invisible handle. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-4 This application is described in further detail.

[0042] The embodiment of the present application discloses a steel beam deviation correction device and a deviation correction method for a special-shaped skylight.

[0043] Reference Figure 1 and Figure 2A steel beam deviation correction device for a special-shaped canopy includes an umbrella column 1, a temporary support 2 and a steel beam 3. The umbrella column 1 supports the entire special-shaped canopy, and a pin joint 11 is installed at the top of the umbrella rib. The temporary support 2 is a temporary support, which can be replaced by a scaffolding and arranged correspondingly at the connection coordinates of the steel beam 3 located according to the BIM model. A mounting seat 4 is provided at the top of each temporary support 2, and an adjustment module 5 is provided on each mounting seat 4. A steel structure connector 6 is sleeved at the end of each steel beam 3. A pin plug-in plate 61 is fixedly provided at the bottom of the steel structure connector 6 located at the top of the umbrella rib at the end of the steel beam 3. The pin plug-in plate 61 is plugged into the pin joint 11, and the pin plug-in plate 61 and the pin joint 11 are rotatably matched, and the pin plug-in plate 61 and the pin joint 11 can be rotated together through the pin. A positioning sensor 7 is inserted and installed at the top center of each steel structure connector 6. A mounting groove 62 is recessed on the middle side wall of the top plate of the steel structure connector 6 corresponding to the positioning sensor 7, and an elastic snap-fit ​​protrusion 621 is fixedly installed on the inner side wall of the mounting groove 62. A snap-fit ​​groove 71 is installed on the side wall of the positioning sensor 7 corresponding to the snap-fit ​​protrusion. The ends of two adjacent steel beams 3 are connected by the same steel structure connector 6, and such steel structure connector 6 corresponds to the mounting seat 4 one by one, and can be detachably installed on the corresponding mounting seat 4.

[0044] Reference Figure 1 Before the construction of the canopy steel beam 3, firstly, temporary supports 2 and mounting seats 4 are arranged at the construction site according to the BIM model. Subsequently, the steel beam 3 is installed radiating from the center of the umbrella column 1 to the surrounding areas, and the steel beam 3 is installed at the predetermined position and connected through the steel structure connector 6. When the steel beam 3 reaches one-third of the construction progress, the positioning sensor 7 is electrically connected to the external three-dimensional laser scanner, and the three-dimensional laser scanner is used to scan the position of the positioning sensor 7 at the connection of the steel beam 3. The precise position of the steel beam 3 obtained by the positioning sensor 7 collected by the three-dimensional laser scanner is compared and integrated with the BIM model data on the PC to generate the position correction data. The adjustment module 5 receives the correction instruction from the PC to accurately adjust the height of the corresponding steel structure connector 6 and the end of the steel beam 3 connected thereto.

[0045] Reference Figure 3The mounting seat 4 includes a mounting base 41 and a mounting top seat 42. The mounting base 41 is sleeved on the top of the temporary support 2, and a connecting bolt 21 is provided between the mounting base 41 and the temporary support 2. The mounting top seat 42 is located at the top of the mounting base 41. Four top corners of the mounting base 41 facing the mounting top seat 42 are fixedly provided with guide columns 411. The side wall of the mounting top seat 42 is provided with guide holes 421 for the guide columns 411 to pass through, corresponding to the guide columns 411. The adjustment module 5 is arranged between the mounting top seat 42 and the mounting base 41. The adjustment module 5 in this embodiment is a CNC jack. The base of the CNC jack is fixedly arranged on the mounting base 41, and the top end of the extension rod thereof is fixedly arranged on the mounting top seat 42. A plurality of guide columns 411 are arranged parallel to the telescopic direction of the CNC jack.

[0046] Reference Figure 3 A support seat 8 is fixedly installed on the top of the mounting top seat 42 at the connection center of the two steel beams 3, and a plug-in groove 63 is opened at the bottom of the steel structure connecting member 6 perpendicular to the length direction of the steel beam 3, and a plug-in block 81 is integrally formed on the top of the support seat 8 to be plugged into and matched with the plug-in groove 63.

[0047] Reference Figure 4 , the support base 8 is provided with support plates 9 corresponding to the steel beams 3 on both sides thereof through the first torsion spring 82 for rotation, each support plate 9 is arranged parallel to the corresponding steel beam 3, and its width is arranged in accordance with the width of the side plate of the steel beam 3, and a rubber pad 422 is fixedly arranged on the top wall of the mounting top base 42 to reduce the occurrence of structural instability caused by the support plate 9 contacting the top wall of the mounting top base 42 when the support plate 9 rotates. In addition, a clamping member 91 is also arranged on each support plate 9, and the clamping member 91 in this embodiment is an L-shaped clamping plate hingedly arranged on both sides of the width direction of the support plate 9, the openings of the two clamping plates are arranged oppositely, and a second torsion spring (not shown in the figure) is sleeved at the hinge axis of each clamping plate and the side wall of the support plate 9, and a chamfer is provided at the end of the clamping plate away from the rotating shaft toward the side of the support plate 9, and an invisible handle 911 is also fixedly arranged on the side wall of the clamping plate away from the clamping plate and the steel beam 3.

[0048] Reference Figures 1 to 4 A deviation correction method for a special-shaped skylight steel beam deviation correction device comprises the following steps:

[0049] S1. Import the original design drawings through the BIM model system on the PC side to carry out in-depth design, and use a point on an umbrella column 1 on site as a reference point, corresponding to the in-depth drawings of the BIM model, to clarify the installation position and coordinates of each steel beam 3;

[0050] S2. Arrange and install several temporary supports 2 according to the installation position and coordinates of each steel beam 3, and set a mounting seat 4 on each temporary support 2;

[0051] S3, installing steel beams 3 radiating from the center of the umbrella rib column 1 to the surroundings, and during the installation process, with the support of the mounting seat 4, the ends of two adjacent steel beams 3 are jointly sleeved with steel structure connectors 6;

[0052] S4, when the construction of the steel beam 3 reaches one third of the construction progress, use a three-dimensional laser scanner to scan the position of the positioning sensor 7;

[0053] S5. After data collection is completed, a point cloud model that meets the requirements of collision analysis is generated through point cloud import, noise reduction, splicing, elimination, export and other steps;

[0054] S6. Overlay the point cloud model with the BIM model on the PC. After overlaying, the software is used for comparative analysis to identify the deviation, display the location where the error exists, and generate correction data.

[0055] S7. The PC sends instructions to the corresponding CNC jack according to the correction data to accurately adjust the height of the corresponding steel structure connector 6 and the end of the steel beam 3 connected thereto.

[0056] The implementation principle of the steel beam deviation correction device and deviation correction method of the special-shaped canopy in the embodiment of the present application is as follows: before the construction of the canopy steel beam 3, firstly, a temporary support 2 and a mounting seat 4 are arranged at the construction site according to the BIM model;

[0057] Subsequently, the steel beams 3 are installed radially around the umbrella rib column 1, and the steel beams 3 are installed at the predetermined position, and the connection between the steel structure connector 6 and the support seat 8 is achieved by plugging and fitting the two, and the steel beams 3 are inserted into the steel structure connector 6, and the inner side wall of the installation groove 62 abuts against the end of the steel beam 3, so as to achieve the preliminary positioning between two adjacent steel beams 3;

[0058] When the steel beam 3 reaches one-third of the construction progress, the positioning sensor 7 at the connection of the steel beam 3 is scanned by a 3D laser scanner, and the collected information is integrated into a point cloud model, which is compared with the BIM model on the PC. Finally, the correction data is calculated and generated, and the height of the end of the steel beam 3 is accurately adjusted by the CNC jack on the mounting seat 4;

[0059] The positions of the several positioning sensors 7 to be adjusted are scanned again by a three-dimensional laser scanner. The obtained point cloud model is compared with the BIM model on the PC. If they are consistent, the steel structure connector 6 can be welded between the steel beam 3. After welding, the temporary support 2, the mounting seat 4, the support seat 8 and the clamping plate are removed in turn.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel beam deviation correction device for a special-shaped canopy, comprising an umbrella rib column (1) and a steel beam (3) installed at the top of the umbrella rib on the umbrella rib column (1), characterized in that: The invention also comprises temporary supports (2) arranged at corresponding connection coordinates of the steel beams (3) located according to the BIM model, a mounting seat (4) being arranged at the top of each temporary support (2), a steel structure connecting piece (6) being sleeved at the end of each steel beam (3), and the ends of two adjacent steel beams (3) being connected by the same steel structure connecting piece (6), the steel structure connecting piece (6) connecting the two steel beams (3) corresponding to the mounting seat (4) one by one, and being detachably arranged on the corresponding mounting seat (4), and a positioning sensor (7) being arranged at the top center of the steel structure connecting piece (6) located on the mounting seat (4), The positioning sensor (7) is electrically connected to an external three-dimensional laser scanner. The mounting seat (4) is also provided with an adjustment module (5) electrically connected to the PC end. The three-dimensional laser scanner collects a number of precise positions of the steel beam (3) obtained by the positioning sensor (7) and the BIM model data to generate positioning correction data on the PC end. The adjustment module (5) receives the correction instruction from the PC end to accurately adjust the height of the corresponding steel structure connecting piece (6) and the end of the steel beam (3) connected thereto. The mounting seat (4) includes a mounting base (41) sleeved on the top of the temporary support (2) and a mounting base (41) disposed on the mounting base (41). ), the adjustment module (5) is a CNC jack arranged between the mounting base (41) and the mounting base (42), the base of the CNC jack is fixedly arranged on the mounting base (41), the top of its extension rod is fixedly arranged on the mounting base (42), the top of the mounting base (42) is provided with a support seat (8) at the connection center of the two steel beams (3), the steel structure connecting member (6) is installed on the support seat (8), and the support seat (8) is rotatably provided with a support plate (9) corresponding to the steel beams (3) on both sides, and the support plate (9) is rotatably connected to the support seat (8). A first torsion spring (82) is sleeved on the rotating shaft, each of the supporting pallets (9) is parallel to the corresponding steel beam (3) and is arranged to match the width of the side plate of the steel beam (3), and each of the supporting pallets (9) is provided with a clamping member (91) for clamping the side plate of the steel beam (3), and the clamping member (91) is an L-shaped clamping plate hinged on both sides of the width direction of the supporting pallet (9), and the openings of the two clamping plates are arranged opposite to each other, and a second torsion spring is sleeved on the hinge axis between each clamping plate and the side wall of the supporting pallet (9), and when the second torsion spring is in a natural state, the side plate of the steel beam (3) is limited between the clamping plate and the supporting pallet (9).

2. The steel beam deviation correction device for a special-shaped canopy according to claim 1 is characterized in that: A plurality of guide columns (411) are arranged on the mounting base (41) around the numerical control jack, the plurality of guide columns (411) are arranged parallel to the telescopic direction of the numerical control jack, and a guide hole (421) for the guide column (411) to pass through is opened on the mounting top seat (42).

3. The steel beam deviation correction device for a special-shaped canopy according to claim 1 is characterized in that: The end of the clamping plate away from the rotating shaft is chamfered toward the supporting plate (9), and an invisible handle (911) is also provided on the side wall of the clamping plate away from the clamping plate and the steel beam (3).

4. The steel beam deviation correction device for a special-shaped canopy according to claim 1 is characterized in that: A mounting groove (62) is concavely provided on the side wall of the middle part of the top plate of the steel structure connecting piece (6) corresponding to the positioning sensor (7), and an elastic snap-fitting protrusion (621) is provided on the inner side wall of the mounting groove (62), and a snap-fitting groove (71) is provided on the side wall of the positioning sensor (7) corresponding to the snap-fitting protrusion. When the positioning sensor (7) is inserted into the mounting groove (62) until the snap-fitting protrusion is snap-fitted into the snap-fitting groove (71), the positioning sensor (7) and the steel structure connecting piece (6) are accurately aligned.

5. The steel beam deviation correction device for a special-shaped canopy according to claim 1 is characterized in that: A pin joint (11) is provided at the top of the umbrella rib, and a pin plug-in plate (61) is provided at the bottom of the steel structure connecting piece (6) at the end of the steel beam (3) located on the top of the umbrella rib, the pin plug-in plate (61) is plugged into the pin joint (11), and the pin plug-in plate (61) and the pin joint (11) are rotationally matched.

6. A deviation correction method based on the deviation correction device for special-shaped canopy steel beams according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Import the original design drawings through the BIM model system on the PC to carry out in-depth design, and use a point on an umbrella rib column (1) on site as a reference point, correspond to the in-depth drawings of the BIM model, and clarify the installation position and coordinates of each steel beam (3); S2. Arrange and install a number of temporary supports (2) according to the installation position and coordinates of each steel beam (3), and set a mounting seat (4) on each temporary support (2); S3, installing the steel beams (3) radiating from the umbrella rib column (1) to the surrounding areas, and during the installation process, with the support of the installation seat (4), the ends of two adjacent steel beams (3) are jointly sleeved with steel structure connectors (6); S4. When the construction of the steel beam (3) reaches one third of the construction progress, use a three-dimensional laser scanner to scan the position of the positioning sensor (7); S5. After data collection is completed, a point cloud model that meets the requirements of collision analysis is generated through point cloud import, noise reduction, splicing, elimination, export and other steps; S6. Overlay the point cloud model with the BIM model on the PC. After overlaying, the software is used for comparative analysis to identify the deviation, display the location where the error exists, and generate correction data. S7. The PC sends instructions to the corresponding CNC jack according to the deviation correction data to accurately adjust the height of the corresponding steel structure connector (6) and the end of the steel beam (3) connected thereto.

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