Construction method of roof system

Abstract

This invention belongs to the field of building construction technology and discloses a construction method for a roof system. The roof system includes a main structure, a keel structure, and a roof structure. The keel structure is connected to the top of the main structure, and the roof structure is connected to the top of the keel structure. The construction method includes: assembling the main structure on the ground; installing the keel structure to the top of the main structure; lifting the main structure and keel structure to a preset position off the ground using a lifting device, causing deformation of the main structure and keel structure due to their own weight and structural stress during the lifting process; after the main structure and keel structure have stabilized, installing the roof structure to the top of the keel structure; and lifting the assembled roof system to the top of the building using the lifting device, connecting the roof system to the outer structure of the building's top. This invention improves construction efficiency and safety, while also ensuring installation quality.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a construction method for a roof system. Background Technology

[0002] With the continuous development and progress of architectural design, more and more public buildings not only meet basic functional requirements but also possess aesthetic value. For example, stadiums and convention centers, due to their unique shapes and artistic flair, have become iconic symbols of a city's charm.

[0003] In architectural engineering, the roof system refers to the roof structure system of a building. Due to the large span of stadium-type buildings, the current construction method for their roof systems involves first fabricating prefabricated components in a factory, then welding these components sequentially on-site to form the final roof system. While on-site welding ensures stability, it presents complex and high-risk high-altitude operations. To address this issue, existing technologies have proposed a modular installation method. This method divides the roof system into several modules, assembling each module on the ground, and then sequentially lifting each module to its installation position. While this method reduces some of the high-altitude work, the connections between modules still need to be made at height. Controlling the connection quality during high-altitude operations is difficult and prone to problems such as inaccurate installation and component deformation, affecting the final result.

[0004] Therefore, there is an urgent need to propose a construction method for a roof system to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a construction method for a roof system that can improve construction efficiency and safety, while also ensuring installation quality.

[0006] Based on the above concept, the technical solution adopted by this invention is as follows:

[0007] This invention provides a construction method for a roof system, used to install the roof system onto the top of a building structure. The roof system includes a main structure, a keel structure, and a roof structure. The keel structure is connected to the top of the main structure, and the roof structure is connected to the top of the keel structure.

[0008] The construction method for the roof system includes:

[0009] The main structure is assembled on the ground.

[0010] Install the keel structure onto the top of the main structure;

[0011] The main structure and the keel structure are lifted to a preset position off the ground by a lifting device, causing the main structure and the keel structure to deform due to their own weight and structural stress during the lifting process;

[0012] After the main structure and the keel structure have stabilized, the roof structure is installed on top of the keel structure to complete the assembly of the roof system.

[0013] The assembled roof system is lifted to the top of the main building using the lifting equipment, and the roof system is connected to the outer structure of the top of the main building.

[0014] In some embodiments, assembling the main structure on the ground includes:

[0015] Set up the assembly frame on the ground;

[0016] The main structure is assembled and adjusted using the assembly frame.

[0017] In some embodiments, installing the keel structure onto the top of the main structure specifically includes:

[0018] First, the keel structure is modularly assembled to form several keel modules, and then the several keel modules are installed one by one onto the top of the main structure.

[0019] In some embodiments, prior to assembling the main structure on the ground, the method further includes:

[0020] Model building and collision checking: Based on professional drawings, a complete three-dimensional model of the roof system is built, and a collision check is performed to ensure that there are no conflicts between the components of the roof system.

[0021] Construction simulation analysis: The construction process is simulated and analyzed, taking into account each construction step in the construction of the roof system, to obtain the stress and deformation of each component of the roof system in each construction stage;

[0022] Stress and displacement check: Check and confirm whether the corresponding stress and displacement meet the component installation conditions. If not, adjust the construction method and steps and re-perform the construction simulation analysis.

[0023] Determine the processing dimensions of the components: Based on the initial state of the components shown in the construction simulation analysis results, determine the processing dimensions of the components;

[0024] Component fabrication: The main structure, the keel structure, and the roof structure are fabricated to ensure processing accuracy and quality.

[0025] In some embodiments, installing the keel structure onto the top of the main structure specifically includes:

[0026] Based on the three-dimensional model of the roof system, the completed main structure is measured using three-dimensional scanning technology. If there is an error between the measurement results and the construction simulation analysis results, the keel structure is adjusted.

[0027] In some embodiments, the main structure and the keel structure are lifted to a preset position off the ground using a lifting device, causing the main structure and the keel structure to deform due to their own weight and structural stress during the lifting process. Specifically, this includes:

[0028] Based on the three-dimensional model of the roof system, three-dimensional scanning technology is used to measure and adjust the main structure and the keel structure during the lifting process.

[0029] In some embodiments, after the main structure and the keel structure have stabilized, the roof structure is installed on top of the keel structure, specifically including:

[0030] Based on the three-dimensional model of the roof system, the roof structure is measured and adjusted using three-dimensional scanning technology.

[0031] In some embodiments, the roof system further includes a walkway;

[0032] After the roof structure is installed on top of the keel structure, the following is also included:

[0033] A walkway is installed at the bottom of the main structure.

[0034] In some embodiments, after the assembled roof system is lifted to the top of the building body by the lifting device and the roof system is connected to the outer perimeter structure of the top of the building body, the method further includes:

[0035] The keel structure and the roof structure are installed sequentially on top of the outer structure.

[0036] In some embodiments, the roof structure is configured as a curtain wall structure;

[0037] And / or, the roof structure is configured as a roofing material.

[0038] The beneficial effects of this invention are:

[0039] The construction method for the roof system provided by this invention assembles the main structure and keel structure on the ground, allowing most of the connection work to be carried out at ground level. The assembled roof system is then lifted and installed as a single unit to the top of the building, significantly reducing the workload of high-altitude operations. This method offers higher safety and construction efficiency, and the lower difficulty of ground assembly makes it easier to control and ensure connection quality. Furthermore, lifting the assembled main structure and keel structure together allows them to deform due to their own weight and structural stress during the lifting process. The roof structure is then installed only after this deformation has stabilized. This facilitates better control of the connection quality between the roof structure and the keel structure, avoiding problems such as inaccurate installation or component deformation caused by unstable deformation or difficult operation during high-altitude work, thus ensuring the final installation accuracy and connection effect. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0041] Figure 1 This is a flowchart of the construction method of the roof system provided in the embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the main structure assembly process provided in an embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the keel structure assembly process provided in an embodiment of the present invention;

[0044] Figure 4 This is a schematic diagram of the completed keel structure assembly provided in an embodiment of the present invention;

[0045] Figure 5 This is a schematic diagram of the main structure and the keel structure being lifted out, provided by an embodiment of the present invention;

[0046] Figure 6 This is a schematic diagram of the roof structure and walkway after installation according to an embodiment of the present invention;

[0047] Figure 7 This is a schematic diagram illustrating the completed installation of the roof system provided in an embodiment of the present invention;

[0048] Figure 8 yes Figure 7 A magnified view of a portion of point A in the middle.

[0049] In the picture:

[0050] 1. Main structure;

[0051] 2. Keel structure;

[0052] 3. Roof structure;

[0053] 4. Assemble the tire frame;

[0054] 5. Horse trail;

[0055] 6. Lift the equipment;

[0056] 100. Roofing system;

[0057] 200. Main building structure; 210. External structure. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0059] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0060] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0061] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0062] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0063] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0064] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0065] like Figures 1 to 8 As shown, the construction method of the roof system provided in this embodiment is used to install the roof system 100 onto the top of the building body 200.

[0066] The roof system 100 includes a main structure 1, a keel structure 2, and a roof structure 3. The keel structure 2 is connected to the top of the main structure 1, and the roof structure 3 is connected to the top of the keel structure 2. The main structure 1 is the primary load-bearing and supporting structure of the roof system 100, and can be a steel structure. The keel structure 2 is a secondary supporting structure used to support and fix the roof structure 3, and the roof structure 3 is the outer surface structure of the roof system 100.

[0067] The construction methods for roof systems include:

[0068] S1. Assemble the main structure 1 on the ground;

[0069] S2. Install the keel structure 2 onto the top of the main structure 1;

[0070] S3. The main structure 1 and the keel structure 2 are lifted to a preset position above the ground by the lifting equipment 6, so that the main structure 1 and the keel structure 2 deform due to their own weight and structural stress during the lifting process.

[0071] S4. After the main structure 1 and the keel structure 2 are stable, install the roof structure 3 on top of the keel structure 2 to complete the assembly of the roof system 100.

[0072] S5. The assembled roof system 100 is lifted to the top of the main building 200 by the lifting device 6, and the roof system 100 is connected to the outer structure 210 at the top of the main building 200.

[0073] In specific implementation steps S3 to S5, the main structure 1 and the keel structure 2 are first lifted together using the lifting device 6. After being lifted to the preset position, the lifting device 6 is not unloaded, but only paused. That is, the main structure 1 and the keel structure 2 are still suspended at the preset position using the lifting device 6. Then, the roof structure 3 is installed in a low-altitude state. After the roof structure 3 is installed, the roof system 100 is fully assembled. The same lifting device 6 is then started again until the assembled roof system 100 is lifted to the installation position at the top of the building main body 200.

[0074] The construction method for the roof system provided in this embodiment assembles the main structure 1 and the keel structure 2 on the ground, allowing most of the connection work to be carried out on the ground. The assembled roof system 100 is then lifted and installed as a whole to the top of the building structure 200. This significantly reduces the workload of high-altitude operations, resulting in higher safety and construction efficiency. Ground assembly is less difficult and makes it easier to control and ensure connection quality. Furthermore, lifting the assembled main structure 1 and keel structure 2 together allows them to deform due to their own weight and structural stress during the lifting process. The roof structure 3 is then installed after the deformation has stabilized. This facilitates better control of the connection quality between the roof structure 3 and the keel structure 2, avoiding problems such as inaccurate installation or component deformation caused by unstable deformation or high operational difficulty during high-altitude operations. This ensures the final installation accuracy and connection effect.

[0075] Optionally, such as Figure 5 As shown, there are two connection points between the lifting device 6 and the main structure 1. The two connection points are symmetrically arranged at opposite ends of the main structure 1 so that the main structure 1 can maintain force balance during the lifting process.

[0076] Optionally, the lifting device 6 can be an electric hoist, a truck crane, a crawler crane, etc., without specific limitations.

[0077] It should be noted that when installing the keel structure 2 onto the top of the main structure 1 in step S2, it is not necessary to wait for the main structure 1 to be fully assembled. The keel structure 2 can be installed simultaneously with the main structure 1.

[0078] In some embodiments, the main structure 1 is assembled on the ground, including:

[0079] Set up the assembly frame 4 on the ground;

[0080] The main structure 1 is assembled and adjusted by assembling the jig 4.

[0081] With this setup, the assembly frame 4 facilitates the assembly and adjustment of the main structure 1, ensuring the assembly accuracy of the main structure 1.

[0082] The assembly frame 4 can adopt a conventional structural configuration in this field, which will not be described in detail here.

[0083] Understandably, when using the assembly frame 4, the lifting device 6 needs to lift the main structure 1 and the keel structure 2 to detach them from the assembly frame 4. During the lifting process, the support points between the main structure 1 and the assembly frame 4 are gradually separated by unloading in stages, avoiding severe deformation or damage caused by unloading all at once.

[0084] In some embodiments, the keel structure 2 is installed on top of the main structure 1, specifically including:

[0085] First, the keel structure 2 is modularly assembled to form several keel modules, and then the several keel modules are installed one by one onto the top of the main structure 1.

[0086] The modular assembly of the keel structure 2 can be carried out off-site in advance, which helps to reduce the installation time of the keel structure 2 and improve the installation efficiency of the keel structure 2 to the main structure 1.

[0087] like Figure 6 As shown, in some embodiments, the roof system 100 also includes a walkway 5. The walkway 5 serves as a passage for construction or maintenance, providing a safe route for construction workers.

[0088] After the roof structure 3 is installed on top of the keel structure 2, it also includes:

[0089] Install the walkway 5 at the bottom of the main structure 1.

[0090] By setting up walkway 5, the construction workers were able to pass through safely, which also facilitated the subsequent inspection and maintenance of the roof system 100.

[0091] like Figure 7 As shown, in some embodiments, after the assembled roof system 100 is lifted to the top of the building body 200 by the lifting device 6 and the roof system 100 is connected to the outer perimeter structure 210 at the top of the building body 200, the method further includes:

[0092] A keel structure 2 and a roof structure 3 are installed sequentially on the top of the outer structure 210. The keel structure 2 on the outer structure 210 is connected to the keel structure 2 in the roof system 100, and the roof structure 3 on the outer structure 210 is connected to the roof structure 3 in the roof system 100.

[0093] With this setup, after the initial connection between the roof system 100 and the outer structure 210 is completed, the keel structure 2 and the roof structure 3 are then installed on the outer structure 210. This allows for flexible handling of various situations on the construction site. For example, the accumulation of errors that may occur during the overall lifting of the roof system 100 can be adaptively adjusted according to the errors of the roof system 100 when installing the keel structure 2 and the roof structure 3 on the outer structure 210, which helps to improve the flexibility of construction.

[0094] Optionally, after the installation of the roof system 100 and the construction of the top of the external structure 210 are completed, the waterproofing locations can be inspected and secondary waterproofing treatment can be carried out to further improve the construction quality.

[0095] In some embodiments, the roof structure 3 is configured as a curtain wall structure. Curtain wall structures generally use transparent or semi-transparent materials, such as tempered glass or laminated glass, which can serve the purpose of allowing light to pass through.

[0096] In some embodiments, the roof structure 3 is configured as a roofing material. The roofing material typically includes a waterproof layer, an insulation layer, etc., serving functions such as waterproofing, thermal insulation, etc.

[0097] Of course, in some embodiments, the curtain wall structure and the roof surface material can be installed simultaneously, depending on the actual situation.

[0098] In some embodiments, prior to assembling the main structure 1 on the ground, the following steps are also included:

[0099] Model building and collision checking: Based on professional drawings, a complete 3D model of the roof system 100 is built, and a collision check is performed to ensure that there are no conflicts between the components of the roof system 100.

[0100] Construction simulation analysis: The construction process is simulated and analyzed, taking into account each construction step in the construction of the roof system 100, to obtain the stress and deformation of each component of the roof system 100 in each construction stage; specifically, the installation sequence of loads such as the keel structure 2 and the roof structure 3 should be considered in the simulation analysis to ensure reasonable structural deformation and structural safety.

[0101] Stress and displacement check: Check and confirm whether the corresponding stress and displacement meet the component installation conditions. If not, adjust the construction method and steps and re-perform the construction simulation analysis.

[0102] Determine the processing dimensions of the components: Based on the initial state of the components shown in the construction simulation analysis results, determine the processing dimensions of the components;

[0103] Component fabrication: Fabricate the main structure 1, keel structure 2 and roof structure 3 to ensure fabrication accuracy and quality.

[0104] In the model building process, the three-dimensional model of the roof system 100 can be a BIM model (Building Information Modeling), which refers to a digital three-dimensional model created based on architectural design drawings, including the shape, materials, connection methods, etc. of the roof system 100.

[0105] By establishing a 3D model of the roof system 100 and conducting collision checks, potential conflicts or interference between components can be identified in advance. Construction simulation analysis allows for the simulation of each step of the construction process in advance, revealing the stress and deformation of each component at each construction stage, thereby reducing rework and adjustments during construction. Stress and displacement checks ensure that the stress and deformation of each component of the roof system 100 are within safe limits at each construction stage. The processing dimensions of the components are determined based on the results of the construction simulation analysis. When determining the processing dimensions, the actual stress and deformation of the components in their initial, installation, and completed states, as obtained from the construction simulation analysis, should be fully considered. This is to allow for adjustments to the component dimensions in advance based on anticipated installation deviations and structural deformations during processing. For example, some components may bend after installation; compensating for this in advance in the processing dimensions ensures that the final completed state is achieved after installation.

[0106] By implementing this setup, pre-construction steps such as model building, construction simulation analysis, and stress and displacement checks before component processing effectively improve the accuracy of construction planning and component processing precision, reduce construction errors and rework risks, lower construction costs, and help ensure the final installation quality of the roof system 100 and the reliability of the overall project.

[0107] In some embodiments, the keel structure 2 is installed on top of the main structure 1, specifically including:

[0108] Based on the three-dimensional model of the roof system 100, the completed main structure 1 is measured using three-dimensional scanning technology. If there is an error between the measurement results and the construction simulation analysis results, the keel structure 2 is adjusted.

[0109] By using 3D scanning technology to accurately measure the completed main structure 1 and comparing the results with the 3D model and construction simulation analysis, deviations in the main structure 1 during actual installation can be accurately identified. Based on these deviations, the position and installation angle of the keel structure 2 can be adjusted in a timely manner to ensure that its installation accuracy meets the design requirements.

[0110] In some embodiments, the main structure 1 and the keel structure 2 are lifted to a preset position above the ground by the lifting device 6, causing the main structure 1 and the keel structure 2 to deform due to their own weight and structural stress during the lifting process, specifically including:

[0111] Based on the three-dimensional model of the roof system 100, three-dimensional scanning technology is used to measure and adjust the main structure 1 and the keel structure 2 during the lifting process.

[0112] With this setup, 3D scanning technology is used to monitor the deformation during the lifting process in real time and compare it with the expected deformation in the 3D model. Deviations can be detected and adjusted in a timely manner to ensure that the structural deformation is within a controllable range and to guarantee the accuracy of subsequent installation.

[0113] In some embodiments, after the main structure 1 and the keel structure 2 have stabilized, the roof structure 3 is installed on top of the keel structure 2, specifically including:

[0114] Based on the three-dimensional model of the roof system 100, the roof structure 3 is measured and adjusted using three-dimensional scanning technology.

[0115] This setup allows for real-time monitoring of the installation position and status of the roof structure 3, which helps ensure precise alignment between the roof structure 3 and the keel structure 2, reducing deviations or misalignments caused by inaccurate installation positions and improving installation accuracy.

[0116] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A construction method for a roof system, characterized in that, For installing a roof system (100) onto the top of a building body (200), the roof system (100) includes a main structure (1), a keel structure (2) and a roof structure (3), the keel structure (2) being connected to the top of the main structure (1) and the roof structure (3) being connected to the top of the keel structure (2); The construction method for the roof system includes: The main structure (1) is assembled on the ground; Install the keel structure (2) onto the top of the main structure (1); The main structure (1) and the keel structure (2) are lifted together by the lifting device (6) to a preset position that is off the ground. The lifting device (6) is then paused. The main structure (1) and the keel structure (2) are suspended at the preset position by the lifting device (6), so that the main structure (1) and the keel structure (2) deform due to their own weight and structural stress during the lifting process. After the deformation of the main structure (1) and the keel structure (2) has stabilized, the roof structure (3) is installed on top of the keel structure (2) to complete the assembly of the roof system (100); Continue to start the lifting device (6) to lift the assembled roof system (100) to the top of the building body (200) and connect the roof system (100) to the outer perimeter structure (210) at the top of the building body (200).

2. The construction method of the roof system according to claim 1, characterized in that, The assembly of the main structure (1) on the ground includes: Set up the assembly frame on the ground (4); The main structure (1) is assembled and adjusted using the assembly frame (4).

3. The construction method of the roof system according to claim 1, characterized in that, Installing the keel structure (2) onto the top of the main structure (1) specifically includes: First, the keel structure (2) is modularly assembled to form several keel modules, and then the several keel modules are installed one by one onto the top of the main structure (1).

4. The construction method of the roof system according to any one of claims 1 to 3, characterized in that, Before assembling the main structure (1) on the ground, the following steps are also included: Model building and collision check: Based on the professional drawings, a complete three-dimensional model of the roof system (100) is built and a collision check is performed to ensure that there are no conflicts between the components of the roof system (100); Construction simulation analysis: The construction process is simulated and analyzed, taking into account each construction step in the construction of the roof system (100), and the stress and deformation of each component of the roof system (100) in each construction stage are obtained; Stress and displacement check: Check and confirm whether the corresponding stress and displacement meet the component installation conditions. If not, adjust the construction method and steps and re-perform the construction simulation analysis. Determine the processing dimensions of the components: Based on the initial state of the components shown in the construction simulation analysis results, determine the processing dimensions of the components; Component processing: Process the main structure (1), the keel structure (2) and the roof structure (3) to ensure processing accuracy and quality.

5. The construction method of the roof system according to claim 4, characterized in that, Installing the keel structure (2) onto the top of the main structure (1) specifically includes: Based on the three-dimensional model of the roof system (100), the completed main structure (1) is measured using three-dimensional scanning technology. If there is an error between the measurement results and the construction simulation analysis results, the keel structure (2) is adjusted.

6. The construction method of the roof system according to claim 4, characterized in that, The main structure (1) and the keel structure (2) are lifted to a preset position above the ground by the lifting device (6), causing the main structure (1) and the keel structure (2) to deform due to their own weight and structural stress during the lifting process, specifically including: Based on the three-dimensional model of the roof system (100), three-dimensional scanning technology is used to measure and adjust the main structure (1) and the keel structure (2) during the lifting process.

7. The construction method of the roof system according to claim 4, characterized in that, After the main structure (1) and the keel structure (2) have stabilized, the roof structure (3) is installed on top of the keel structure (2), specifically including: Based on the three-dimensional model of the roof system (100), the roof structure (3) is measured and adjusted using three-dimensional scanning technology.

8. The construction method of the roof system according to claim 1, characterized in that, The roof system (100) also includes a walkway (5); After the roof structure (3) is installed on top of the keel structure (2), the following is also included: A walkway (5) is installed at the bottom of the main structure (1).

9. The construction method of the roof system according to claim 1, characterized in that, The assembled roof system (100) is lifted to the top of the building body (200) by the lifting device (6). After connecting the roof system (100) to the outer perimeter structure (210) at the top of the building body (200), the system further includes: The keel structure (2) and the roof structure (3) are installed sequentially on the top of the outer structure (210).

10. The construction method of the roof system according to claim 1, characterized in that, The roof structure (3) is configured as a curtain wall structure; And / or, the roof structure (3) is configured as a roof surface material.

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