Fabricated curved surface gypsum board suspended ceiling assembly based on BIM and mounting method of fabricated curved surface gypsum board suspended ceiling assembly

Abstract

The invention belongs to the technical field of curved surface suspended ceilings, and particularly relates to a BIM-based assembly type curved surface gypsum board suspended ceiling assembly and an installation method thereof.The assembly comprises a plurality of suspenders, a keel system and a curved surface gypsum board which are sequentially arranged from top to bottom, the curved surface gypsum board comprises a plurality of GRG modules, and the multiple GRG modules in each group are connected end to end and arranged along an arc line, one sides of the at least two groups of GRG modules are integrally provided with upper flanges, and the other sides of the at least three groups of GRG modules are integrally provided with lower flanges; a first side plate is arranged on one side, close to the GRG module, of each upper flange, and a second side plate is arranged on one side, away from the GRG module, of each lower flange; the method comprises the step 1 to the step 5, each module is separated, mutual collision between the modules is avoided, and the modules are arranged in an imbricated mode. According to the method, the disassembly structure of the curved surface gypsum board is uniformly segmented by utilizing the BIM technology, all GRG modules are rapidly located and tightly connected, multiple construction sections are synchronously processed, and the operation period of assembly construction is shortened.

Description

Technical Field

[0001] The present invention belongs to the technical field of curved ceilings, and in particular relates to a BIM-based assembled curved gypsum board ceiling assembly and an installation method thereof. Background Art

[0002] The design of the curved ceiling can soften the lines of the space, making the overall visual effect softer and warmer, and reducing the sense of rigidity. The curved ceiling presents a wavy shape, with a sense of continuity and extension, which can enhance the dynamics and vitality of the space. However, the curved ceiling has a large span and is difficult to construct, so it is generally assembled on site using modular prefabricated parts.

[0003] Especially in areas such as theaters and lecture halls, where the ground is mostly steps, the area available for high-altitude construction is small, and the ceiling shapes are complex and diverse. In order to shorten the construction period, speed up the ceiling construction, and meet the structural stability requirements, a modular processing technology can be used to evenly divide the curved ceiling into sections, process the ground as a whole, and unify the lifting construction.

[0004] For large-space hyperbolic gypsum board ceilings, it has two curvatures in the horizontal and vertical directions and is divided into different modules prefabricated in the factory. The two curvatures increase the difficulty of module assembly, especially when corners are fitted together. Each module needs to be tightly connected, which slows down the construction progress. Once individual modules are damaged, re-ordering and re-delivery of materials will greatly delay the construction period. Summary of the invention

[0005] The purpose of the present invention is to provide a BIM-based assembled curved gypsum board ceiling assembly and an installation method thereof, which can utilize BIM technology to evenly segment the disassembled structure of the curved gypsum board, quickly position each GRG module and tightly connect it, and simultaneously process multiple construction sections to shorten the assembly construction operation period.

[0006] The technical solution adopted by the present invention is as follows: The BIM-based assembled curved gypsum board ceiling assembly comprises a plurality of hangers, a keel system and a curved gypsum board arranged in sequence from top to bottom, wherein the curved gypsum board comprises a plurality of groups of GRG modules, and each group of a plurality of the GRG modules are connected end to end and arranged along an arc, wherein at least two groups of the GRG modules have an upper flange integrally installed on one side, and at least three groups of the GRG modules have a lower flange integrally installed on the other side.

[0007] A first side plate is provided on the side of the upper flange close to the GRG module, and a second side plate is provided on the side of the lower flange away from the GRG module. The second side plates are bent downwardly from the lower flange and fixedly connected to the lower edge of the adjacent first side plate. The interval between the second side plate and the first side plate forms a shingled cavity, and the shingled cavity is provided with a mesh cage mechanism.

[0008] Before construction, BIM technology was used to carry out comprehensive pipeline layout and pipeline collision detection in advance in the complex ceiling structure; BIM technology was used to compare, disassemble, group and assemble the curved gypsum board. By evenly disassembling the structure, each group of shapes was evenly segmented. After the model drawings were sent to the factory for processing, each GRG module was numbered.

[0009] During construction, the GRG modules are sent to the site for pre-assembly according to the numbers. Then, the keel system is hoisted in sections using prefabricated technology, and the section-by-section assembly and reinforcement are completed to ensure accuracy. Finally, the GRG modules are sealed according to the numbers. The process is to first insert the lower flange into the shingle cavity, and then stick the GRG module to the keel system. At the same time, the shingle cavity is used to separate adjacent GRG modules to avoid mutual collisions, and the adjacent upper and lower flanges are connected and pressed through the mesh cage mechanism, so that each GRG module can be quickly placed in place to tightly connect the keel system and the curved gypsum board. It can also be processed simultaneously in multiple construction sections to shorten the assembly construction period.

[0010] As a preferred solution, the keel system includes a plurality of main keels arranged at intervals, the upper edges of the main keels are fixedly connected to the lower ends of adjacent hangers, and the upper curved surfaces of the GRG modules are fixedly provided with a plurality of secondary keels fixedly connected to the main keels. According to the layout of the model drawings, a number of hangers are fixed at intervals, the main keel is first fixed to the lower ends of the hangers, and then the secondary keels are arranged one by one and fixed to the lower surface of the main keel in a fan-shaped distribution. Since the secondary keels themselves have a certain curvature, the keel system has at least two curvatures on the roof and can fit the curved gypsum board.

[0011] As a preferred solution, the mesh cage mechanism includes a steel liner arranged along an arc inside the shingled cavity, the steel liners are all located below adjacent GRG modules, one side of the steel liner is used to stick to the inner arc surface of the adjacent lower flange, and the other side is fixed with multiple first steel arc sheets at intervals. During construction, the steel liner and the second side plate are separated to leave a gap for convenient positioning of the GRG module, and then the GRG module is moved, the lower flange is inserted into the gap, and then the steel liner is penetrated and fixed to the second side plate with screws. The steel liner and the first steel arc sheets are pressed against the lower flange in a mesh cage shape, taking into account the arc surface compression and clamping of the arc surface of the gypsum board, so as to achieve a tight connection between the keel system and the curved gypsum board, and reduce the degree of cracking caused by single-point extrusion of the screws.

[0012] As a preferred solution, slopes are provided on the steel lining and the adjacent first steel arc sheets, the lower end of the lower flange is inserted into the shingle cavity along the slope, and first pin holes are radially provided on the outer side of the steel lining in the middle of the two first steel arc sheets, and the first pin holes are used to tighten the steel lining and the second side plate by inserting screws. The slope facilitates guiding the lower flange to slide upward and insert it into the shingle cavity, and the reserved first pin hole can be inserted with the screw, which clarifies the position where the curved gypsum board passes through the screw and arranges them neatly, making it convenient for the screws to stagger the first steel arc sheets and tighten the steel lining and the second side plate to clamp the lower flange.

[0013] As a preferred solution, a second steel arc sheet is welded on the side of the first steel arc sheet away from the steel lining, the opening direction of the second steel arc sheet is away from the first steel arc sheet, and the opening is welded to the outer arc surface of the adjacent first side plate. The second steel arc sheet, the first steel arc sheet and the steel liner are used to form a three-fold mesh cage, which is supported in the curved hook-shaped support plate formed by the first side plate and the second side plate. Once the screws tighten the steel lining and the second side plate, the middle of the first side plate and the middle of the second side plate are connected, which greatly improves the supporting strength of the shingled cavity.

[0014] As a preferred solution, a steel seat is radially fixed in the middle of the second steel arc sheet, and the steel seat is in the shape of a thick round rod at one end. A round steel pipe is rotatably installed on the end of the steel seat away from the first steel arc sheet. During construction, a number of screws can be passed through the first side plate and the upper flange at intervals, and at the same time extend into the second steel arc sheet until the round steel pipe is inserted and the steel seat is laterally supported, which can push the first steel arc sheet and the second steel arc sheet to further bend, so as to tighten the steel lining, taking into account the fixation of the upper flange and the clamping of the lower flange.

[0015] As a preferred solution, a second pin hole is provided at the position of the first side plate facing the opening of the round steel pipe. The second pin hole is used to tighten the steel seat and the round steel pipe by inserting screws. The staff can touch the second pin hole to find the point where the screw is inserted into the upper flange. The diameter of the second pin hole is smaller than the outer diameter of the screw, so it can be tightened after the screw is inserted.

[0016] As a preferred solution, the upper edge of the inner arc surface of the steel lining is welded with ribs vertically pointing to the first pin hole, and the ribs are hidden in the shingled cavity. On the one hand, the ribs can enhance the supporting strength of the upper surface of the steel lining, and on the other hand, they are on the same plane as the first pin hole and the second pin hole, which can well indicate the orientation of the first pin hole and the second pin hole, making it easier to find the screw insertion position.

[0017] As a preferred solution, at least one group of the GRG modules is embedded with a decorative panel on one side, and the decorative panels are staggered with the shingle cavities.

[0018] The BIM-based method for installing a prefabricated curved gypsum board ceiling assembly includes the following steps: Step 1: Measure the roof area on site and use BIM technology to carry out comprehensive pipeline layout and pipeline collision detection in advance in the complex ceiling structure; Step 2: Use BIM technology to compare, disassemble, group, and assemble the hyperbolic gypsum board. By evenly disassembling the structure, evenly segment each group of GRG modules to make a model drawing. Step 3: After sending the model drawings to the factory for processing, each GRG module is numbered; Step 4: Send it to the site for pre-assembly according to the number, use the assembly technology to carry out segmented structural hoisting of the keel system, and complete the segmented assembly reinforcement; Step 5: Seal the hyperbolic gypsum board according to the number.

[0019] The technical effects achieved by the present invention are: The present invention uses BIM technology to compare, disassemble, group, and assemble curved gypsum boards. By evenly disassembling the structure, each group of shapes is evenly segmented. After the model drawings are sent to the factory for processing, each GRG module is numbered. The GRG module is sealed according to the number. The process is to first insert the lower flange into the imbrication cavity, and then stick the GRG module to the keel system. At the same time, the imbrication cavity is used to separate adjacent GRG modules to avoid mutual collision, and the adjacent upper and lower flanges are connected and compressed through the mesh cage mechanism, so that each GRG module can be quickly placed in place to tightly connect the keel system and the curved gypsum board. It can also be processed simultaneously in multiple construction sections to shorten the assembly construction period.

[0020] During the construction of the present invention, the steel liner and the second side plate are separated to leave a gap for facilitating the positioning of the GRG module, and then the GRG module is moved, the lower flange is inserted into the gap, and then the steel liner is penetrated by screws to be fixed to the second side plate. The steel liner and the first steel arc sheet are pressed against one side of the lower flange in a cage shape, and the other side of the lower flange is pressed against the second side plate, taking into account the arc surface compression and the clamping of the two sides of the arc surface of the gypsum board. The second side plate is used as a bridge to achieve a close connection between the keel system and the curved gypsum board, and the degree of cracking caused by single-point extrusion of the screws can be reduced.

[0021] The present invention modularizes the hyperbolic gypsum board through steps one to five. After the shape of each section is clarified, multiple construction sections can be processed simultaneously, and the construction efficiency is high. In particular, each module is separated to avoid mutual collision between modules, and the shingled arrangement between each other is more layered. Structures such as light strips can be placed at the intervals between modules to enhance the aesthetic feeling. Compared with traditional double-eyelid ceilings, the hyperbolic gypsum board shingled structure of the present invention is more difficult to construct, especially in an environment with multiple steps on the ground in a large space, it can meet the structural stability requirements, evenly divide the curved ceiling into sections, process the ground as a whole, and uniformly lift and construct, which does not conflict with the layout of water and electricity integrated pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a plan view schematic diagram of a curved gypsum board in the first embodiment of the present invention; Figure 2 is a cross-sectional schematic diagram of a curved gypsum board in Embodiment 1 of the present invention; Figure 3 It is a structural schematic diagram of a BIM-based assembled curved gypsum board ceiling component part in the first embodiment of the present invention; Figure 4 is a schematic structural diagram of the keel system part in the first embodiment of the present invention; Figure 5 is a schematic diagram of the structure of a single GRG module in Embodiment 1 of the present invention; Figure 6 is a schematic structural diagram of a single second side plate in the first embodiment of the present invention; Figure 7 It is a structural schematic diagram of the net cage mechanism in the first embodiment of the present invention; Figure 8 2 is a schematic diagram of the structure after the first steel arc sheet and the second steel arc sheet are welded in the first embodiment of the present invention; Fig. 9 is a cross-sectional view of a round steel pipe in Embodiment 1 of the present invention; Fig.10 It is a flow chart of a method for installing a prefabricated curved gypsum board ceiling assembly based on BIM in the second embodiment of the present invention.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Suspension rod; 2. GRG module; 3. Upper flange; 4. Lower flange; 5. First side plate; 6. Second side plate; 7. Main keel; 8. Secondary keel; 9. Steel lining; 10. First steel arc piece; 11. Slope; 12. First pin hole; 13. Second steel arc piece; 14. Steel seat; 15. Round steel pipe; 16. Second pin hole; 17. Rib; 18. Decorative panel. DETAILED DESCRIPTION

[0024] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0025] Embodiment 1: like Figure 1-Figure 9As shown, the BIM-based assembled curved gypsum board ceiling assembly includes a plurality of hangers 1, a keel system and a curved gypsum board arranged in sequence from top to bottom. In this embodiment, the curved gypsum board has curvature in both horizontal and vertical directions. The hangers 1 are fixed to the roof with expansion screws facing upwards. The curved gypsum board includes a plurality of groups of GRG modules 2. The GRG modules 2 are made of a mixture of gypsum board and glass fiber. The computer-based BIM software can be customized into a hyperbolic structure. Each group of multiple GRG modules 2 is connected end to end and arranged along an arc. Among them, at least two groups of GRG modules 2 have an upper flange 3 integrated on one side, and at least three groups of GRG modules 2 have a lower flange 4 integrated on the other side.

[0026] A first side plate 5 is provided on the side of the upper flange 3 close to the GRG module 2, and a second side plate 6 is provided on the side of the lower flange 4 away from the GRG module 2. In this embodiment, the first side plate 5 and the second side plate 6 can be made of steel plates and are fixed to the GRG module 2 respectively by screws. The second side plates 6 are bent downwardly from the lower flange 4 and fixedly connected to the lower edge of the adjacent first side plate 5. The interval between the second side plate 6 and the first side plate 5 forms a shingled cavity, and the shingled cavity is provided with a mesh cage mechanism.

[0027] Before construction, BIM technology was used to carry out comprehensive pipeline layout and pipeline collision detection in advance in the complex ceiling structure; BIM technology was used to compare, disassemble, group and assemble the curved gypsum board. By evenly disassembling the structure, each group of shapes was evenly segmented. After the model drawings were sent to the factory for processing, each GRG module 2 was numbered.

[0028] During construction, the GRG modules 2 are sent to the site for pre-assembly according to the numbers. Then, the keel system is hoisted in sections using prefabricated technology, and the section-by-section assembly and reinforcement are completed to ensure accuracy. Finally, the GRG modules 2 are sealed according to the numbers. The process is to first insert the lower flange 4 into the shingle cavity, and then attach the GRG module 2 to the keel system. At the same time, the shingle cavity is used to separate adjacent GRG modules 2 to avoid mutual collisions, and the adjacent upper flange 3 and lower flange 4 are connected and compressed through the mesh cage mechanism, so that each GRG module 2 can be quickly placed in place to tightly connect the keel system and the curved gypsum board. It can also be processed simultaneously in multiple construction sections to shorten the assembly construction period.

[0029] See attached Figure 1 , Figure 3 and Figure 4The keel system includes a plurality of main keels 7 arranged at intervals, and the upper edges of the main keels 7 are fixedly connected to the lower ends of adjacent suspension rods 1. A plurality of secondary keels 8 fixedly connected to the main keels 7 are fixedly fixed on the upper arc surface of the GRG module 2. One end of the secondary keel 8 is fixedly connected to one side of the first side plate 5, and the lower edges of the secondary keels 8 are fixedly connected to the upper surface of the second side plate 6. Both the main keel 7 and the secondary keel 8 can be made of square steel pipes. In this embodiment, a bending machine is used to assist in heating to bend the main keel 7 and the secondary keel 8. According to the layout of the model drawing, a plurality of suspension rods 1 are fixed at intervals, and the main keel 7 is first fixed to the lower end of the suspension rod 1, and then the secondary keels 8 are arranged and fixed one by one to the lower surface of the main keel 7 in a fan-shaped distribution. Since the secondary keel 8 itself has a certain curvature, the keel system has at least two curvatures on the roof, which can fit the hyperbolic gypsum board.

[0030] See attached Figure 3 , Figure 5 and Figure 6 The mesh cage mechanism includes a steel liner 9 arranged along an arc inside the shingled cavity. The steel liner 9 is located below the adjacent GRG modules 2. One side of the steel liner 9 is used to stick to the inner arc surface of the adjacent lower flange 4, and the other side is fixed with multiple first steel arc sheets 10 at intervals. During construction, the steel liner 9 and the second side plate 6 are separated to leave a gap for convenient positioning of the GRG module 2, and then the GRG module 2 is moved, the lower flange 4 is inserted into the gap, and then the steel liner 9 is fixed to the second side plate 6 with screws. The steel liner 9 and the first steel arc sheet 10 are mesh-cage-shaped to press against one side of the lower flange 4, and the other side of the lower flange 4 is close to the second side plate 6, taking into account the arc surface compression and clamping of the arc surface of the gypsum board, so as to achieve a close connection between the keel system and the curved gypsum board, and reduce the degree of cracking caused by single-point extrusion of the screw.

[0031] See attached Figure 3 , Figure 5 and Figure 8 , the steel lining 9 and the adjacent first steel arc sheet 10 are both provided with a slope 11, the lower end of the lower flange 4 is inserted into the shingle cavity along the slope 11, and the outer side of the steel lining 9 is located between the two first steel arc sheets 10. A first pin hole 12 is radially provided, and the first pin hole 12 is inserted by inserting screws to tighten the steel lining 9 and the second side plate 6. The slope 11 is convenient for guiding the lower flange 4 to slide upward and insert it into the shingle cavity. The reserved first pin hole 12 can be penetrated by the screw, and the position where the curved gypsum board passes through the screw is clearly defined, and it is neatly arranged, which is convenient for the screws to stagger the first steel arc sheet 10, tighten the steel lining 9 and the second side plate 6 to clamp the lower flange 4.

[0032] See attached Figure 6 , Figure 7 and Figure 8A second steel arc sheet 13 is welded on the side of the first steel arc sheet 10 away from the steel lining 9. The opening direction of the second steel arc sheet 13 is away from the first steel arc sheet 10 and the opening is welded to the outer arc surface of the adjacent first side plate 5. The second steel arc sheet 13, the first steel arc sheet 10 and the steel lining 9 are used to form a three-fold mesh cage, which is supported in the curved hook-shaped support plate formed by the first side plate 5 and the second side plate 6. Once the screws tighten the steel lining 9 and the second side plate 6, the middle of the first side plate 5 and the middle of the second side plate 6 are connected, which greatly improves the supporting strength of the shingled cavity.

[0033] See attached Figure 7 , Figure 8 and Fig. 9 A steel seat 14 is radially fixed in the middle of the second steel arc sheet 13. The steel seat 14 is in the shape of a thick round rod at one end. A round steel pipe 15 is rotatably installed on the end of the steel seat 14 away from the first steel arc sheet 10. During construction, a number of screws can be passed through the first side plate 5 and the upper flange 3 at intervals, and at the same time extend into the second steel arc sheet 13 until the round steel pipe 15 is inserted and the steel seat 14 is laterally supported, which can push the first steel arc sheet 10 and the second steel arc sheet 13 to further bend, so as to compress the steel lining 9, while taking into account the fixation of the upper flange 3 and the clamping of the lower flange 4.

[0034] See attached Figure 6 , Figure 8 and Fig. 9 A second pin hole 16 is provided at the position of the first side plate 5 facing the opening of the round steel pipe 15. The second pin holes 16 are used to tighten the steel seat 14 and the round steel pipe 15 by inserting screws. The staff can touch the second pin holes 16 to find the point where the screw penetrates the upper flange 3. The diameter of the second pin hole 16 is smaller than the outer diameter of the screw, so it can be tightened after the screw is penetrated, which reduces the difficulty of screw penetration and reduces the time spent on screwing.

[0035] See attached Figure 3 and Figure 6 The upper edge of the inner arc surface of the steel liner 9 is welded with ribs 17 vertically pointing to the first pin hole 12. The ribs 17 are hidden in the shingle cavity. On the one hand, the ribs 17 can enhance the supporting strength of the upper surface of the steel liner 9. On the other hand, they are on the same plane as the first pin hole 12 and the second pin hole 16, which can well indicate the orientation of the first pin hole 12 and the second pin hole 16 to facilitate accurate positioning of the screws.

[0036] See attached Figure 1 and Figure 2 At least one group of GRG modules 2 is embedded with a decorative panel 18 on one side, and the decorative panels 18 are staggered in the shingle cavity. The decorative panel 18 can be a metal plate with a mesh, which is used to connect the air outlet of the air conditioner, or to connect to the light strip to emit multiple lights at one time.

[0037] Embodiment 2: Theaters, lecture halls and other areas, where the ground is mostly steps, have a small area available for aerial work construction, and the ceiling shapes are complex and diverse. In order to shorten the construction period, speed up the ceiling construction, and meet the structural stability requirements, a modular processing technology can be used to evenly divide the curved ceiling into sections, process the ground as a whole, and unify the lifting construction. Therefore, we have made improvements to the construction technology of traditional curved gypsum board ceilings.

[0038] like Figure 1-Figure 10 As shown, the BIM-based assembled curved gypsum board ceiling assembly installation method includes the following steps: Step 1: Measure the roof area on site and import it into the computer BIM software. Use BIM technology to carry out comprehensive pipeline layout and pipeline collision detection in advance in the complex ceiling structure; Step 2: In the computer BIM software, use BIM technology to compare, disassemble, group and assemble the hyperbolic gypsum board. By evenly disassembling the structure, evenly segment the shape of each group of GRG modules 2 to make a model drawing; Step 3: After the model drawing is sent to the factory for processing, each GRG module 2 is numbered to match the position in the model drawing; Step 4: Send it to the site for pre-assembly according to the number, use the assembly technology to carry out segmented structural hoisting of the keel system, and complete the segmented assembly reinforcement; According to the layout of the model drawing, several suspension rods 1 are fixed at intervals, the main keel 7 is first fixed to the lower end of the suspension rod 1, and then the secondary keels 8 are arranged and fixed to the lower surface of the main keel 7 one by one, in a fan-shaped distribution. Since the secondary keel 8 itself has a certain curvature, the keel system has at least two curvatures on the roof, which can fit the hyperbolic gypsum board; At this point, hydropower construction personnel can enter the site to carry out comprehensive pipeline layout; Step 5: Seal the hyperbolic gypsum board according to the number; Among them, the first side plate 5 is fixed to one end of the secondary keel 8, and the second side plate 6 is fixed to the lower edge of the secondary keel 8. The adjacent first side plates 5 and the second side plates 6 form a hook-shaped support plate. The internal space of the hook-shaped support plate is an imbrication cavity. The steel liner 9 and the second side plate 6 are separated to leave a gap to facilitate the positioning of the GRG module 2. The lower end of the lower flange 4 is inserted into the imbrication cavity along the slope 11. The reserved first pin hole 12 can be penetrated by a screw, which penetrates the steel liner 9 and is fixed to the second side plate 6. The steel liner 9 and the first steel arc sheet 10 are pressed against one side of the lower flange 4 in a cage shape, and the other side of the lower flange 4 is close to the second side plate 6, taking into account the arc surface compression and clamping of the arc surface of the gypsum board, so as to achieve a close connection between the keel system and the curved gypsum board, and reduce the degree of cracking caused by single-point extrusion of the screw; At the same time, a number of screws can be passed through the first side plate 5 and the upper flange 3 at intervals, and extended into the second steel arc sheet 13 until they are inserted into the round steel tube 15 and laterally support the steel seat 14, which can push the first steel arc sheet 10 and the second steel arc sheet 13 to further bend to tighten the steel lining 9, while taking into account the fixation of the upper flange 3 and the clamping of the lower flange 4.

[0039] In summary, through steps one to five, the hyperbolic gypsum board is modularized. After the shape of each section is clarified, multiple construction sections can be processed simultaneously, and the construction efficiency is high. In particular, each module is separated to avoid collision between modules, and the shingled arrangement between each other is more layered. Structures such as light strips can be placed at the intervals between modules to enhance the beauty. Compared with traditional double-eyelid ceilings, the hyperbolic gypsum board shingled structure of the present invention is more difficult to construct, especially in an environment with multiple steps on the ground in a large space. It can meet the structural stability requirements, evenly divide the curved ceiling into sections, process the ground as a whole, and perform unified hoisting construction, which does not conflict with the layout of water and electricity integrated pipelines.

[0040] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A BIM-based assembled curved gypsum board ceiling assembly, comprising a plurality of hangers (1), a keel system and a curved gypsum board arranged in sequence from top to bottom, characterized in that: The curved gypsum board comprises a plurality of groups of GRG modules (2), wherein each group of a plurality of the GRG modules (2) are connected end to end and arranged along an arc, wherein at least two groups of the GRG modules (2) have an upper flange (3) integrally mounted on one side, and at least three groups of the GRG modules (2) have a lower flange (4) integrally mounted on the other side; A first side plate (5) is provided on the side of the upper flange (3) close to the GRG module (2), and a second side plate (6) is provided on the side of the lower flange (4) away from the GRG module (2), the second side plate (6) is bent toward the bottom of the lower flange (4) and fixedly connected to the lower edge of the adjacent first side plate (5), the interval between the second side plate (6) and the first side plate (5) forms an imbrication cavity, and the imbrication cavity is provided with a mesh cage mechanism; During construction, the shingle cavity is used to separate adjacent GRG modules (2) to avoid collision with each other, and the mesh cage mechanism is used to connect and press the adjacent upper flanges (3) and lower flanges (4), so as to facilitate the rapid placement of each GRG module (2) to tightly connect the keel system and the curved gypsum board, and multiple construction sections can be processed simultaneously to shorten the assembly construction operation period.

2. The BIM-based assembled curved gypsum board ceiling assembly according to claim 1, characterized in that: The keel system comprises a plurality of main keels (7) arranged at intervals, the upper edges of the main keels (7) being fixedly connected to the lower ends of adjacent suspension rods (1), and the upper curved surfaces of the GRG modules (2) being fixedly provided with a plurality of secondary keels (8) fixedly connected to the main keels (7) at intervals.

3. The BIM-based assembled curved gypsum board ceiling assembly according to claim 1, characterized in that: The mesh cage mechanism comprises a steel liner (9) arranged along an arc inside the shingled cavity, the steel liner (9) being located below adjacent GRG modules (2), one side of the steel liner (9) being used to abut against the inner arc surface of the adjacent lower flange (4), and the other side being provided with a plurality of first steel arc sheets (10) fixed at intervals.

4. The BIM-based assembled curved gypsum board ceiling assembly according to claim 3, characterized in that: The steel liner (9) and the adjacent first steel arc sheets (10) are both provided with a slope (11), the lower end of the lower flange (4) is inserted into the shingle cavity along the slope (11), and the outer side of the steel liner (9) is provided with a first pin hole (12) in the radial direction at a position between the two first steel arc sheets (10), and the first pin hole (12) is used to tighten the steel liner (9) and the second side plate (6) by inserting a screw.

5. The BIM-based assembled curved gypsum board ceiling assembly according to claim 4, characterized in that: A second steel arc sheet (13) is welded to the side of the first steel arc sheet (10) away from the steel lining (9); the opening direction of the second steel arc sheet (13) is away from the first steel arc sheet (10), and the opening is welded to the outer arc surface of the adjacent first side plate (5).

6. The BIM-based assembled curved gypsum board ceiling assembly according to claim 5, characterized in that: A steel seat (14) is radially fixed in the middle of each of the second steel arc pieces (13); each of the steel seats (14) is in the shape of a round rod with a thick end; and a round steel pipe (15) is rotatably mounted on one end of the steel seat (14) away from the first steel arc piece (10).

7. The BIM-based assembled curved gypsum board ceiling assembly according to claim 6, characterized in that: The first side plate (5) is provided with a second pin hole (16) at a position facing the opening of the round steel pipe (15), and the second pin hole (16) is fastened to the steel seat (14) and the round steel pipe (15) by inserting a screw.

8. The BIM-based assembled curved gypsum board ceiling assembly according to claim 7, characterized in that: The upper edges of the inner arc surface of the steel liner (9) are welded with ribs (17) vertically pointing to the first pin hole (12), and the ribs (17) are hidden in the shingle cavity.

9. The BIM-based assembled curved gypsum board ceiling assembly according to claim 1, characterized in that: At least one group of the GRG modules (2) is embedded with a decorative panel (18) on one side, and the decorative panels (18) are all staggered with the shingle cavities.

10. The BIM-based method for installing a prefabricated curved gypsum board ceiling assembly is characterized by: The BIM-based assembled curved gypsum board ceiling assembly applied to any one of claims 1 to 9 comprises the following steps: Step 1: Measure the roof area on site and use BIM technology to carry out comprehensive pipeline layout and pipeline collision detection in advance in the complex ceiling structure; Step 2: Use BIM technology to compare, disassemble, group, and assemble the hyperbolic gypsum board. By evenly disassembling the structure, evenly segment the shape of each group of GRG modules (2) to produce a model drawing. Step 3: After the model drawings are sent to the factory for processing, each GRG module (2) is numbered; Step 4: Send it to the site for pre-assembly according to the number, use the assembly technology to carry out segmented structural hoisting of the keel system, and complete the segmented assembly reinforcement; Step 5: Seal the hyperbolic gypsum board according to the number.

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