BIM technology and 3D scanning technology-based curtain wall large keel assembly installation construction process

Abstract

The application belongs to the technical field of fabricated building process, and particularly relates to a curtain wall large keel fabricated installation construction process based on BIM technology and 3D scanning technology, and the specific steps are as follows: 3D scanning technology is used to perform three-dimensional scanning on the construction site, and collect and input various data information of the construction site; BIM technology is combined to model the project, and material shape data, size information and part matching data are extracted; after the data is extracted, the keel components of different shapes and sizes are grouped and numbered one by one, and then the curtain wall large keel is produced in the factory; after the keel component is processed, it is directly transported to the processing site and installed according to the number, and the keel and the base are screwed during installation, so that the installation is completed, the application can simplify the installation steps, does not need to repeatedly adjust and cut the keel, improves the installation speed, and further shortens the construction period, while ensuring the engineering quality, and reduces the management cost.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated building technology, specifically involving the prefabricated installation construction process of large curtain wall keel based on BIM technology and 3D scanning technology. Background Technology

[0002] A glass curtain wall refers to an exterior building envelope or decorative structure consisting of a supporting structural system that allows for a certain degree of displacement relative to the main structure and does not share the loads of the main structure. The wall can be made of single-layer or double-layered glass. Glass curtain walls are a beautiful and novel method of building wall decoration. The keel is a building material used to support the shape and fix the structure. In the installation of glass curtain walls, the keel is used as the main supporting structure. Furthermore, the main keel of the curtain wall plays a decisive role in the shape of irregularly shaped curtain walls.

[0003] Problems with existing technology:

[0004] The main keel of the curtain wall plays a decisive role in the shape of irregular curtain walls. During construction, problems such as low dimensional accuracy of on-site keel processing and inaccurate installation positioning often lead to repeated adjustments and cutting during installation, which increases construction costs and affects the construction period. It also reduces the installation speed, extends the construction period, and adds certain difficulties to the on-site work scheduling. Summary of the Invention

[0005] The purpose of this invention is to provide a prefabricated installation process for large curtain wall keel based on BIM and 3D scanning technologies. This process simplifies the installation steps, eliminates the need for repeated adjustments and cutting of the keel, increases installation speed, and shortens the construction period. It also reduces management costs while ensuring project quality.

[0006] The specific technical solution adopted by this invention is as follows:

[0007] The specific steps of the prefabricated installation process for large-scale curtain wall keel based on BIM and 3D scanning technologies are as follows:

[0008] S1: Use 3D scanning technology to perform three-dimensional scanning of the construction site, collect and input various data and information of the construction site;

[0009] S2: Combine BIM technology to model the project and extract material shape data, size information and part fit data, etc.

[0010] S3: After extracting the data, group the keel components of different shapes and sizes and number them one by one. Then, the large keel of the curtain wall is manufactured in the factory.

[0011] S4: Before assembling the keel, steel or concrete foundations are fabricated on-site based on the modeling information to provide an installation foundation for the assembly of the keel components.

[0012] S5: After the keel components are processed, they are directly transported to the processing site and installed according to their numbers. During installation, the keel and the base are screwed together to complete the installation.

[0013] S6: After the curtain wall keel frame is assembled, the installation of the insulated laminated glass is completed. Finally, vertical aluminum square tubes and aluminum alloy cover plates are installed in the designated positions to complete the curtain wall decoration.

[0014] Including steel structure buildings and concrete structure buildings;

[0015] For steel structure buildings and concrete building buildings, the large keel assembly work is carried out on the two types of building buildings using the construction process of S1 to S6 above. The corresponding structural systems are set as steel structure curtain wall keel system and concrete structure curtain wall keel system, respectively.

[0016] The steel structure curtain wall keel system includes the main steel structure beams that serve as the body of the steel structure building and steel columns that support the main steel structure beams. The steel columns are distributed along the inner edge of the steel structure building. Square steel tube columns are also arranged at equal intervals between adjacent steel columns. Steel flat tubes are fixedly installed at equal intervals between adjacent square steel tube columns and between steel columns. The steel columns are fixed to the foundation surface by a foundation steel structure set in the foundation. The outer surface of the keel framework composed of steel columns, square steel tube columns and steel flat tubes is covered with hollow laminated glass.

[0017] Vertical square steel pipes are arranged in an array on the top and upper surface of the main steel structure beam, and aluminum panels are installed on the outside of the vertical square steel pipes through aluminum angle brackets. Square steel pipe supports for supporting the top vertical square steel pipes are fixedly installed on the top edge of the main steel structure beam. Foam rods and sealant are filled at the top of the square steel pipe supports and at the splicing of the aluminum panels. A second lightning protection copper conductor is pre-embedded inside the aluminum panels on the top surface of the main steel structure beam, and a first lightning protection copper conductor is installed on the edge of the vertical square steel pipes on the top surface of the main steel structure beam.

[0018] The top of the steel column is connected to the main steel structure beam via an installed galvanized steel connector. The galvanized steel connector includes a keel base fixedly installed on the top of the steel column and a steel connector. One end of the steel connector has a bolt hole, and the keel base and the steel connector are connected by a connecting bolt through the bolt hole. The other end of the steel connector is connected to the main steel structure beam via a connected steel rod.

[0019] Foam rods and sealant are filled between the hollow laminated glass at the top and the vertical steel tube, and an aluminum alloy sub-frame is installed at the splice of the hollow laminated glass and the vertical steel tube and is fixedly assembled with the steel flat tube. The aluminum alloy sub-frame is fixedly installed on the outer wall of the steel flat tube by machine screws, and structural adhesive and double-sided adhesive are filled between the aluminum alloy sub-frame and the hollow laminated glass.

[0020] The bottom outer side of the main steel structure beam, located on the foundation surface, is also arranged in an array of vertical steel pipes and aluminum panels. The vertical steel pipes are fixed to the foundation surface by aluminum angle brackets, steel nails, and sealant. At the joint between the hollow laminated glass and the corresponding vertical steel pipe at the bottom, foam rods, sealant, and aluminum alloy sub-frames are also provided. Structural adhesive and double-sided adhesive are also used to fill the space between the hollow laminated glass and the corresponding aluminum alloy sub-frame at the bottom. An aluminum alloy support strip and matching accessories for supporting the hollow laminated glass are assembled on one side of the aluminum alloy sub-frame at the bottom.

[0021] An aluminum alloy cover plate is installed at the splice of adjacent hollow laminated glass. A vertical aluminum square tube is installed at the splice of adjacent hollow laminated glass and on the outer side of the top of the main steel structure beam. The vertical aluminum square tube is connected to the steel flat tube through an extension that passes through the splice gap between the hollow laminated glass and the vertical steel tube. The extension and the vertical aluminum square tube are fixedly assembled by angle steel bolt fasteners.

[0022] The concrete structure curtain wall keel system includes square steel tube columns distributed along the edge of the concrete building. Channel steel adapters are installed in an array of steel reinforcement components at the top edge of the concrete building. The top of the square steel tube columns is connected to the corresponding channel steel adapters by stainless steel bolts. Galvanized iron sheets are installed in an array of steel reinforcement components on the foundation surface at the bottom edge of the concrete building. The bottom end of the square steel tube columns is fixedly assembled with a corresponding self-made steel insert. Horizontal square steel tubes are installed in an array between adjacent square steel tube columns. The outer surface of the keel structure formed by the square steel tube columns and horizontal square steel tubes is covered with hollow laminated glass.

[0023] Angle steel is fixedly installed on the top outer wall of the square steel tube column, and vertical square steel tubes are also installed on the outer wall of the angle steel through aluminum angle brackets. The top of the angle steel is fixed to the top of the vertical steel tubes through angle steel. The vertical steel tubes at the top are also fixed to the top of the concrete building through aluminum angle brackets, steel nails, and sealant. Fireproof and heat-insulating rock wool is arranged at the top edge of the concrete building and at the top of the square steel tube column. The fireproof and heat-insulating rock wool is fixed by galvanized iron sheets connected to the concrete building and the horizontal square steel tubes.

[0024] An aluminum alloy cover plate is also installed at the joint of adjacent insulated laminated glass units. The vertical steel pipe, which is assembled with the angle steel, is also filled with foam rods and sealant at the joint with the insulated laminated glass. An aluminum alloy sub-frame connected to the horizontal steel pipe is also installed at the joint of the vertical steel pipe and the insulated laminated glass. Structural adhesive and double-sided adhesive are also filled between the aluminum alloy sub-frame and the insulated laminated glass.

[0025] At the bottom of the concrete structure, and outside the self-made steel core, vertical steel pipes and aluminum panels are arranged in an array. The vertical steel pipes are fixed to the foundation surface by aluminum angle brackets, steel nails, and sealant. At the joint between the hollow laminated glass and the corresponding vertical steel pipe at the bottom, foam rods, sealant, and aluminum alloy sub-frames are provided. The aluminum alloy sub-frames are also fixed to the outer wall of the horizontal steel pipes. Structural adhesive and double-sided adhesive are used to fill the space between the hollow laminated glass and the corresponding aluminum alloy sub-frame at the bottom. In addition, aluminum alloy support strips and matching parts for supporting the hollow laminated glass are assembled on one side of the aluminum alloy sub-frame at the bottom. Fireproof and heat-insulating rock wool is also arranged on the horizontal steel pipes and the foundation surface at the bottom. The fireproof and heat-insulating rock wool is fixed by galvanized iron sheets connected to the foundation and the horizontal steel pipes.

[0026] The technical effects achieved by this invention are as follows:

[0027] (1) This invention uses 3D scanning technology to scan the construction site, combines BIM technology to model the project, extracts data and then produces the large curtain wall keel in the factory. After processing, it can be installed according to the number. During installation, the keel and the base are screwed together to complete the installation. After the curtain wall main keel is scanned on site, modeled and collided, the factory production greatly improves the product accuracy; simplifies the installation steps, ensures the finished product installation effect, does not require repeated adjustment and cutting of the keel, improves the installation speed, and shortens the construction period. While ensuring the quality of the project, it also reduces the management cost and achieves good economic and social benefits.

[0028] (2) In this invention, the use of galvanized steel connectors is to realize the connection between the keel nodes on site. The installation can be completed by simply connecting the keel base with bolts, thus eliminating the need for welding operations, eliminating safety hazards, and producing no pollutants. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the on-site 3D scanning measurement model provided in an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the Bim creation model provided in an embodiment of the present invention;

[0031] Figure 3This is a partial schematic diagram of the top structure of the steel structure building curtain wall installation provided in an embodiment of the present invention;

[0032] Figure 4 yes Figure 3 A magnified schematic diagram of the partial structure at point A in the middle;

[0033] Figure 5 This is a structural diagram of the galvanized steel connector provided in an embodiment of the present invention;

[0034] Figure 6 This is a partial schematic diagram of the bottom structure of the steel structure building curtain wall installation provided in an embodiment of the present invention;

[0035] Figure 7 yes Figure 6 A magnified schematic diagram of the local structure at point C;

[0036] Figure 8 This is a partial schematic diagram of the top structure for installing a concrete building curtain wall according to an embodiment of the present invention;

[0037] Figure 9 yes Figure 8 A magnified schematic diagram of the local structure at point D;

[0038] Figure 10 This is a partial schematic diagram of the bottom structure for installing a concrete building curtain wall according to an embodiment of the present invention;

[0039] Figure 11 yes Figure 10 A magnified schematic diagram of the structure at point E in the middle.

[0040] The attached diagram lists the components represented by each number as follows:

[0041] 1. Steel column; 2. Square steel tube column; 3. Steel flat tube; 4. Insulating laminated glass; 5. Vertical aluminum square tube; 6. Vertical square steel tube; 7. Aluminum angle bracket; 8. Aluminum single panel; 9. Square steel tube support; 10. Main steel structure beam; 11. Foam rod and sealant; 12. Lightning protection copper conductor one; 13. Lightning protection copper conductor two; 14. Galvanized steel connectors; 1401. Keel base; 1402. Connecting bolts; 1403. Steel connectors; 1404. Bolt holes; 1405. Steel connecting rods; 15. 16. Horizontal steel pipe; 17. Fireproof and heat-insulating rock wool; 18. Aluminum alloy sub-frame; 19. Structural adhesive and double-sided adhesive tape; 20. Machine-made screws; 21. Extension parts; 22. Angle steel bolt fasteners; 23. Aluminum alloy cover plate; 24. Foundation steel structure; 25. Aluminum alloy support strips and accessories; 26. Aluminum angle brackets, steel nails and sealant; 27. Channel steel adapter; 28. Stainless steel bolts; 29. ​​Reinforcing steel base; 30. Angle steel; 31. Galvanized iron sheet; 32. Self-made steel insert. Detailed Implementation

[0042] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0043] like Figure 1-2 As shown, the specific steps of the prefabricated installation process for large curtain wall keel based on BIM and 3D scanning technologies are as follows:

[0044] S1: Use 3D scanning technology to perform three-dimensional scanning of the construction site, collect and input various data and information of the construction site;

[0045] S2: Combine BIM technology to model the project and extract material shape data, size information and part fit data, etc.

[0046] S3: After extracting the data, group the keel components of different shapes and sizes and number them one by one. Then, the large keel of the curtain wall is manufactured in the factory.

[0047] S4: Before assembling the keel, steel or concrete foundations are fabricated on-site based on the modeling information to provide an installation foundation for the assembly of the keel components.

[0048] S5: After the keel components are processed, they are directly transported to the processing site and installed according to their numbers. During installation, the keel and the base are screwed together to complete the installation.

[0049] S6: After the curtain wall keel frame is assembled, the installation of the insulated laminated glass 4 is completed. Finally, the vertical aluminum square tube 5 and aluminum alloy cover plate 22 are installed in the designated position to complete the curtain wall decoration work.

[0050] The working principle of this invention is as follows: 3D scanning technology is used to scan the construction site, and BIM technology is used to model the project. After data extraction, the large curtain wall keel is produced in the factory. After processing, it can be installed according to the number. During installation, the keel and the base are screwed together to complete the installation. This simplifies the installation steps, ensures the installation effect of the finished product, eliminates the need for repeated adjustment and cutting of the keel, improves the installation speed, and thus shortens the construction period.

[0051] like Figure 3-11 As shown, the curtain wall large keel prefabricated installation construction process based on BIM technology and 3D scanning technology includes steel structure building body and concrete building body. For steel structure building body and concrete building body, the large keel assembly work of the two types of building bodies is carried out by the above-mentioned construction process S1 to S6 respectively, which will generate two structural systems, which are set as steel structure curtain wall keel system and concrete structure curtain wall keel system respectively.

[0052] Example 1:

[0053] See attached document Figure 3 and Figure 6 The steel structure curtain wall keel system includes the main steel structure beam 10, which is the body of the steel structure building, and the steel columns 1 used to support the main steel structure beam 10. The steel columns 1 are distributed on the inner edge of the steel structure building. Square steel tube columns 2 are also arranged at equal intervals between adjacent steel columns 1. Steel flat tubes 3 are fixedly installed at equal intervals between adjacent square steel tube columns 2 and between steel columns 1 and square steel tube columns 2. The steel columns 1 are fixed to the foundation surface by the foundation steel structure 23 set in the foundation. The outer surface of the keel structure composed of steel columns 1, square steel tube columns 2 and steel flat tubes 3 is covered with hollow laminated glass 4.

[0054] See attached document Figure 3 Vertical steel pipes 6 are arranged in an array on the top and upper surface of the main steel structure beam 10, and aluminum single panels 8 are installed on the outside of the vertical steel pipes 6 through aluminum angle brackets 7. Square steel pipe supports 9 for supporting the top vertical steel pipes 6 are fixedly installed on the top edge of the main steel structure beam 10. Foam rods and sealant 11 are filled on the top of the square steel pipe supports 9 and at the splice of the aluminum single panels 8. Lightning protection copper wire 2 13 is pre-embedded inside the aluminum single panel 8 on the top surface of the main steel structure beam 10, and lightning protection copper wire 12 is set on the edge of the vertical steel pipes 6 on the top surface of the main steel structure beam 10.

[0055] See attached document Figure 3 and Figure 5 The top of the steel column 1 is connected to the main steel structure beam 10 through the installed galvanized steel connector 14. The galvanized steel connector 14 includes a keel base 1401 fixedly installed on the top of the steel column 1 and a steel connector 1403. One end of the steel connector 1403 is provided with a bolt hole 1404, and the keel base 1401 and the steel connector 1403 are connected by a connecting bolt 1402 that passes through the bolt hole 1404. The other end of the steel connector 1403 is connected to the main steel structure beam 10 through a connected steel connecting rod 1405.

[0056] According to the above structure, the galvanized steel connector 14 is used for the connection between the keel nodes on site, thereby eliminating the need for welding operations, eliminating safety hazards, and producing no pollutants.

[0057] See attached document Figure 4 and Figure 7Foam rods and sealant 11 are filled between the top hollow laminated glass 4 and the vertical steel pipe 6. An aluminum alloy sub-frame 17, which is fixedly assembled with the steel flat pipe 3, is installed at the joint between the hollow laminated glass 4 and the vertical steel pipe 6. The aluminum alloy sub-frame 17 is fixedly installed on the outer wall of the steel flat pipe 3 by machine screws 19. Structural adhesive and double-sided adhesive tape 18 are filled between the aluminum alloy sub-frame 17 and the hollow laminated glass 4. Vertical steel pipes 6 are also arranged in an array on the bottom outer side of the main steel structure beam 10 and on the foundation surface. And aluminum single panel 8, and vertical steel pipe 6 is fixed to the foundation surface by aluminum angle brackets, steel nails and sealant 25. Foam rods, sealant 11 and aluminum alloy sub-frame 17 are also provided at the splice between the bottom hollow laminated glass 4 and the corresponding vertical steel pipe 6. Structural adhesive and double-sided adhesive 18 are also filled between the bottom hollow laminated glass 4 and the corresponding aluminum alloy sub-frame 17. Aluminum alloy support strip and matching 24 for supporting the hollow laminated glass 4 are assembled on one side of the bottom aluminum alloy sub-frame 17.

[0058] See attached document Figure 4 and Figure 6 An aluminum alloy cover plate 22 is installed at the splicing point of adjacent hollow laminated glass 4. A vertical aluminum square tube 5 is set at the splicing point of adjacent hollow laminated glass 4 and on the outer side of the top of the main steel structure beam 10. The vertical aluminum square tube 5 is connected to the steel flat tube 3 through the extension 20 that passes through the splicing gap between the hollow laminated glass 4 and the vertical steel tube 6. The extension 20 and the vertical aluminum square tube 5 are fixedly assembled by the angle steel bolt fastener 21.

[0059] The working principle of this invention is as follows: Using the construction processes S1 to S6 described above, the large keel of the steel structure building is assembled. First, 3D scanning technology is used to perform a three-dimensional scan of the construction site, collecting and inputting various data information. Then, BIM technology is used to model the project and extract material shape data, size information, and part matching data. This allows the determination of the dimensions of each steel column 1, square steel pipe column 2, flat steel pipe 3, vertical square steel pipe 6, and square steel pipe support 9. After data extraction, the keel components of different shapes and sizes are grouped and numbered. Next, the large keel of the curtain wall is factory-produced and transported to the processing site. Each keel is installed according to its number. The keel is screwed to the base, and the steel column 1 is connected to the main steel structure beam 10 using galvanized steel connectors 14. This completes the assembly of the steel structure curtain wall keel system. Finally, the double-glazed laminated glass 4 is installed to complete the curtain wall installation.

[0060] Example 2:

[0061] See attached document Figure 8 and Figure 10The concrete structure curtain wall keel system includes square steel tube columns 2 distributed along the edge of the concrete building. Channel steel adapters 26 are installed in an array through steel reinforcement bases 28 at the top edge of the concrete building. The top of the square steel tube columns 2 is connected to the corresponding channel steel adapters 26 by stainless steel bolts 27. Galvanized iron sheets 31 are installed in an array through steel reinforcement bases 28 on the foundation surface at the bottom edge of the concrete building. The bottom end of the square steel tube columns 2 is fixedly assembled with the corresponding self-made steel inserts 32. Horizontal square steel tubes 15 are installed in an array between adjacent square steel tube columns 2. The outer surface of the keel structure composed of square steel tube columns 2 and horizontal square steel tubes 15 is covered with hollow laminated glass 4.

[0062] See attached document Figure 8 Angle steel 29 is fixedly installed on the top outer wall of the square steel pipe column 2, and vertical square steel pipe 6 is also installed on the outer wall of angle steel 29 through aluminum angle bracket 7. The top of angle steel 29 and the top of vertical square steel pipe 6 are fixed together by angle steel 30. The vertical square steel pipe 6 at the top is also fixed to the top of the concrete building through aluminum angle bracket, steel nail and sealant 25. Fireproof and heat-insulating rock wool 16 is arranged on the top edge of the concrete building and at the top of the square steel pipe column 2. The fireproof and heat-insulating rock wool 16 is fixed by galvanized iron sheet 31 connected to the concrete building and the horizontal square steel pipe 15.

[0063] See attached document Figure 8 and Figure 9 An aluminum alloy cover plate 22 is also installed at the splicing point of adjacent double-glazed glass 4. The vertical steel pipe 6, which is assembled with the angle steel 29, is also filled with foam rods and sealant 11 at the splicing point of the double-glazed glass 4. An aluminum alloy sub-frame 17 connected to the horizontal steel pipe 15 is also installed at the splicing point of the vertical steel pipe 6 and the double-glazed glass 4. Structural adhesive and double-sided adhesive tape 18 are also filled between the aluminum alloy sub-frame 17 and the double-glazed glass 4.

[0064] See attached document Figure 10 and 11At the bottom of the concrete building and on the outside of the self-made steel insert 32, vertical steel pipes 6 and aluminum single panels 8 are arranged in an array. The vertical steel pipes 6 are also fixed to the foundation surface by aluminum angle brackets, steel nails and sealant 25. At the splice between the hollow laminated glass 4 at the bottom and the corresponding vertical steel pipe 6, foam rods, sealant 11 and aluminum alloy sub-frames 17 are also provided. The aluminum alloy sub-frames 17 are also fixed to the outer wall of the horizontal steel pipes 15. The hollow laminated glass 4 at the bottom and the corresponding aluminum alloy sub-frames 17 are also filled with structural adhesive and double-sided adhesive tape 18. In addition, aluminum alloy support strips and matching 24 for supporting the hollow laminated glass 4 are assembled on one side of the aluminum alloy sub-frames 17 at the bottom. Fireproof and heat-insulating rock wool 16 is also arranged on the bottom horizontal steel pipes 15 and the foundation surface. The fireproof and heat-insulating rock wool 16 is fixed by galvanized iron sheets 31 connected to the foundation and the horizontal steel pipes 15.

[0065] The working principle of this invention is as follows: Using the construction processes S1 to S6 described above, the large keel of the concrete building is assembled. First, 3D scanning technology is used to perform a three-dimensional scan of the construction site, collecting and inputting various data information. Then, BIM technology is used to model the project and extract material shape data, size information, and part matching data. This allows for the determination of the dimensions of the steel pipe columns 2, horizontal steel pipes 15, vertical steel pipes 6, channel steel adapters 26, angle steel 29, and self-made steel inserts 32. After data extraction, the keel components of different shapes and sizes are grouped and numbered. Next, the large keel of the curtain wall is factory-produced and transported to the processing site. Each keel is installed according to its number, with the keel screwed to the base. This completes the assembly of the steel structure curtain wall keel system. Finally, the hollow laminated glass 4, fireproof and heat-insulating rock wool 16, and the corresponding aluminum alloy cover plate 22 are installed to complete the curtain wall installation.

[0066] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A curtain wall large keel assembly type installation construction process based on BIM technology and 3D scanning technology, characterized in that, The specific steps are as follows: S1: using 3D scanning technology to scan the construction site, collecting and inputting various data information of the construction site; S2: combining BIM technology to model the project, and extracting material shape data, size information and part fitting data; S3: after extracting the data, grouping and numbering the keel components of different shapes and sizes, and then producing the large keel of the curtain wall in the factory; S4: Before assembling the keel, make the steel structure foundation or concrete foundation in advance according to the modeling information, lay the foundation for the assembly of the keel component; S5: After the keel component is processed, it is directly transported to the processing site and installed according to the number. When installing, the keel is screwed with the base to complete the installation; S6: After the curtain wall keel skeleton is assembled, the hollow laminated glass (4) is installed, and finally the vertical aluminum square tube (5) and aluminum alloy cover plate (22) are installed at the specified position to complete the decoration of the curtain wall. It includes a steel structure building body and a concrete building body. For the steel structure building body and the concrete building body, the above S1 to S6 construction process is used to assemble the large keel of the two building bodies, which will produce two structure systems, which are respectively set as the steel structure curtain wall keel system and the concrete structure curtain wall keel system.

2. The BIM technology and 3D scanning technology-based curtain wall large keel assembly type installation construction process according to claim 1, characterized in that: The steel structure curtain wall keel system includes the main steel structure beam (10) as the main body of the steel structure building body and the steel column (1) for supporting the main steel structure beam (10), and the steel column (1) is distributed on the inner edge of the steel structure building body. Adjacent steel columns (1) are also arranged with square steel pipe columns (2) at equal intervals, and steel flat tubes (3) are fixedly installed between adjacent square steel pipe columns (2) and between steel columns (1) and square steel pipe columns (2) at equal intervals. The steel column (1) is fixed to the ground surface through the foundation steel structure (23) arranged in the foundation, and the keel framework composed of the steel column (1), the square steel pipe column (2) and the steel flat tube (3) is installed with the hollow laminated glass (4) on the outer surface.

3. The BIM technology and 3D scanning technology-based curtain wall large keel assembly type installation construction process according to claim 2, characterized in that: The top and upper surface of the main steel structure beam (10) are arranged with vertical square steel pipes (6) in an array, and the outer side of the vertical square steel pipe (6) is installed with an aluminum single board (8) through an aluminum corner code (7). The top edge of the main steel structure beam (10) is fixedly installed with a square steel pipe support (9) for supporting the top vertical square steel pipe (6). The top of the square steel pipe support (9) and the splicing place of the aluminum single board (8) are filled with a foam rod and sealant (11). The lightning copper wire two (13) is embedded in the inside of the aluminum single board (8) on the top surface of the main steel structure beam (10), and the lightning copper wire one (12) is arranged on the edge of the vertical square steel pipe (6) on the top surface of the main steel structure beam (10).

4. The BIM technology and 3D scanning technology-based curtain wall large keel assembly type installation construction process according to claim 3, characterized in that: The top of the steel column (1) is connected with the main body steel structure beam (10) through the installed galvanized steel connecting piece (14), the galvanized steel connecting piece (14) includes the keel base (1401) fixedly installed on the top of the steel column (1) and the steel connecting piece (1403), one end of the steel connecting piece (1403) penetrates the bolted hole (1404), and the keel base (1401) and the steel connecting piece (1403) are connected through the connecting bolt (1402) penetrating the bolted hole (1404), and the other end of the steel connecting piece (1403) is connected with the main body steel structure beam (10) through the connected steel connecting rod (1405).

5. The BIM technology and 3D scanning technology-based curtain wall large keel assembly type installation construction process according to claim 3, characterized in that: The top hollow laminated glass (4) and vertical square steel pipe (6) are filled with foam sticks and sealant (11), and the splicing part of the hollow laminated glass (4) and the vertical square steel pipe (6) is provided with an aluminum alloy sub-frame (17) fixedly assembled with the steel flat tube (3), the aluminum alloy sub-frame (17) is fixedly installed on the outer wall of the steel flat tube (3) through the mechanism screw (19), and the aluminum alloy sub-frame (17) and the hollow laminated glass (4) are filled with structural adhesive and double-sided adhesive tape (18); The bottom outer side of the main body steel structure beam (10) and the ground surface are also arranged with vertical square steel pipes (6) and aluminum single plates (8), the vertical square steel pipes (6) are fixed to the ground surface through aluminum angle codes, steel nails and sealant (25), the splicing part of the bottom hollow laminated glass (4) and the corresponding vertical square steel pipe (6) is also provided with foam sticks and sealant (11) and aluminum alloy sub-frame (17), the bottom hollow laminated glass (4) and the corresponding aluminum alloy sub-frame (17) are also filled with structural adhesive and double-sided adhesive tape (18), and the side of the bottom aluminum alloy sub-frame (17) is assembled with an aluminum alloy supporting strip and matching part (24) for supporting the hollow laminated glass (4).

6. The BIM technology and 3D scanning technology-based curtain wall large keel assembly type installation construction process according to claim 5, characterized in that: The splicing part of the adjacent hollow laminated glass (4) is provided with an aluminum alloy cover plate (22), the splicing part of the adjacent hollow laminated glass (4) and the top outer side of the main body steel structure beam (10) are provided with a vertical aluminum square tube (5), the vertical aluminum square tube (5) is connected with the steel flat tube (3) through the extension piece (20) penetrating the splicing gap of the hollow laminated glass (4) and the vertical square steel pipe (6), and the extension piece (20) and the vertical aluminum square tube (5) are fixedly assembled through the angle steel bolt fixing piece (21).

7. The BIM and 3D scanning technology-based curtain wall large keel assembly type installation construction process according to claim 1, characterized in that: The concrete structure curtain wall keel system includes square steel pipe columns (2) distributed at the edges of a concrete building body, a channel steel adapter (26) is installed at the top edge of the concrete building body through an array of reinforcing base pieces (28), the top of the square steel pipe column (2) is connected with the corresponding channel steel adapter (26) through stainless steel bolts (27), a galvanized iron sheet (31) is installed at the ground surface at the bottom edge of the concrete building body through an array of reinforcing base pieces (28), and the bottom end of the square steel pipe column (2) is fixedly assembled with a self-made steel insert core (32), a horizontal square steel pipe (15) is installed between adjacent square steel pipe columns (2) in an array, and a keel framework formed by the square steel pipe columns (2) and the horizontal square steel pipes (15) is installed with hollow laminated glass (4) on the outer surface in a paving manner.

8. The BIM technology and 3D scanning technology-based curtain wall large keel assembly type installation construction process according to claim 7, characterized in that: An angle steel one (29) is fixedly installed at the top outer wall of the square steel pipe column (2), a vertical square steel pipe (6) is also installed on the outer wall of the angle steel one (29) through an aluminum angle code (7), the top of the angle steel one (29) and the top of the vertical square steel pipe (6) are fixed through an angle steel (30), the vertical square steel pipe (6) at the top is also fixed to the top of the concrete building body through an aluminum angle code, a steel nail and sealant (25), a fireproof and heat-insulating rock wool (16) is arranged at the top edge of the concrete building body and at the top of the square steel pipe column (2), and the fireproof and heat-insulating rock wool (16) is fixed through the galvanized iron sheet (31) connected with the concrete building body and the horizontal square steel pipe (15).

9. The BIM and 3D scanning technology-based curtain wall large keel assembly type installation construction process according to claim 8, characterized in that: An aluminum alloy cover plate (22) is also installed at the joint of adjacent hollow laminated glass (4), the vertical square steel pipe (6) assembled with the angle steel one (29) is also filled with a foam stick and sealant (11) in the joint gap of the hollow laminated glass (4), an aluminum alloy sub-frame (17) connected with the horizontal square steel pipe (15) is also installed at the joint of the vertical square steel pipe (6) and the hollow laminated glass (4), and the aluminum alloy sub-frame (17) and the hollow laminated glass (4) are also filled with structural adhesive and double-sided adhesive tape (18).

10. The BIM and 3D scanning technology-based curtain wall large keel assembly type installation construction process according to claim 9, characterized in that: The concrete building body bottom and outside of self-made steel plug core (32) are also arranged with vertical square steel pipe (6) and aluminum veneer (8) in array, and the vertical square steel pipe (6) is also fixed on the ground surface through aluminum corner and steel nail and sealant (25), the hollow laminated glass (4) at the bottom is also provided with foam stick and sealant (11) and aluminum alloy sub-frame (17) at the splicing position of the corresponding vertical square steel pipe (6), and the aluminum alloy sub-frame (17) is also fixed on the outer wall of horizontal square steel pipe (15), the hollow laminated glass (4) at the bottom is also filled with structural adhesive and double-sided adhesive (18) between the corresponding aluminum alloy sub-frame (17), and the aluminum alloy sub-frame (17) on one side of the bottom is assembled with aluminum alloy supporting strip and matching (24) for supporting the hollow laminated glass (4), the horizontal square steel pipe (15) at the bottom is also arranged with fireproof and heat-insulating rock wool (16) on the ground surface, and the fireproof and heat-insulating rock wool (16) is fixed through galvanized iron sheet (31) connected with the ground and horizontal square steel pipe (15).

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