A spherical net rack dome module and a method for mounting

Abstract

The application discloses a spherical net rack modularization and mounting method, wherein the spherical net rack module comprises a plurality of bolt balls and rod pieces, the rod pieces are in threaded connection with the bolt balls, the bolt balls are connected with the rod pieces to form a conical body, the bottom surface of the conical body is a partial arc surface in a spherical shape, the top of the conical body is provided with a bolt ball, and the partial top of the bottom surface of the conical body is provided with a bolt ball; the bolt balls in adjacent modules are connected through the rod pieces to combine the modules into a spherical net rack dome; the bolt ball is provided with a ball number which can be used to query the design position of the bolt ball in the spherical net rack; the rod piece is provided with a rod piece number which can be used to query the ball numbers of the bolt balls at the two ends of the rod piece; and the module mounted according to the rod piece number is the above module. The application improves the mounting efficiency of the spherical net rack dome module, guarantees the accuracy of the mounting of the spherical net rack dome module, and maintains the smoothness of the spherical net rack curve.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a spherical grid dome module and its mounting method. Background Technology

[0002] In large public buildings, stadiums, and industrial storage tanks, spherical space frame domes are widely used due to their high structural efficiency, magnificent appearance, and large span capacity. These structures are typically assembled on-site into standard modules from a large number of pre-manufactured rods and node spheres with specific geometric shapes, and then hoisted together at a high altitude.

[0003] In existing technologies, the final forming quality and structural safety of the space frame structure are highly dependent on the positioning accuracy of each module during the high-altitude installation phase. However, those skilled in the art understand that the accuracy of module installation constitutes a key technical bottleneck, its importance primarily manifested in the following three aspects: First, accurate module installation is a fundamental prerequisite for ensuring the overall structural mechanical performance and safety. A spherical space frame is a highly statically indeterminate spatial structure, and its internal force distribution is based on the designed geometry. If a single module experiences positional deviation or rotational misalignment during installation, the members between adjacent modules will not be able to achieve the theoretically correct hole-to-hole connection, resulting in enormous secondary assembly stress. This initial defect, which deviates from the design assumptions, will significantly alter the structure's force path, not only drastically reducing the overall stiffness and stability limit of the structure, but also potentially triggering a chain reaction of instability and failure under extreme loads (such as wind, snow, and earthquakes), leading to catastrophic consequences.

[0004] Secondly, the accuracy of module installation is a decisive factor in ensuring the smooth progress of subsequent construction procedures. As a supporting system, the space frame structure typically requires an enclosure system such as metal roof panels, skylights, or photovoltaic modules. These systems are extremely sensitive to the shape tolerances of the underlying supporting structure. If the actual outline of the completed space frame deviates significantly from the design model, it will directly lead to the roof panels being unable to be laid flat or sealed properly, and irreparable gaps will appear between the skylights and window frames. This will severely affect the building's waterproofing, insulation, and airtightness, and may even force costly on-site cutting and adjustments, greatly delaying the construction period and increasing project costs.

[0005] Third, accurate module installation is a core requirement for achieving aesthetic architectural design and controlling construction costs. The smooth curves of the spherical space frame are an important aesthetic feature. Installation deviations of the modules visually disrupt the smooth surface of the dome, creating obvious concavities or convexities, thus damaging the overall aesthetic appeal of the building. From an economic perspective, any loss of precision during installation requires significant manpower and resources for high-altitude correction, resulting in high operational risks and low efficiency. Minor precision deviations in the early stages will be amplified in subsequent processes, ultimately driving up the correction costs and overall project cost exponentially.

[0006] Therefore, ensuring the accuracy, efficiency, and reliability of high-altitude module installation in existing spherical dome construction technology has become a long-standing and urgent core technical problem in this field. Summary of the Invention

[0007] In view of the deficiencies in the existing technology, this application provides a spherical grid dome module and a method for mounting it, so as to solve the above-mentioned technical problems.

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: A spherical space frame module includes multiple bolt balls and rods. Each bolt ball has multiple bolt holes arranged radially along its surface. Bolts are fixed at both ends of each rod, which are threadedly connected to the bolt balls. The connection between the bolt balls and rods forms a cone. The bottom surface of the cone is a partial arc of a sphere. A bolt ball is located at the apex of the cone, and a bolt ball is located at a partial vertex of the bottom surface of the cone. Bolt balls in adjacent modules are connected by rods to assemble the modules into a spherical space frame dome. Each bolt ball is marked with a ball number, allowing the user to determine its design position within the spherical space frame. Each rod is marked with a rod number, allowing the user to determine the ball numbers of the bolt balls at both ends of the rod.

[0009] In one embodiment, the rod includes a steel pipe with tapered ends welded to both ends. The larger end of the tapered end is welded to the end of the steel pipe, and the smaller end of the tapered end is welded to a threaded sleeve. The threaded sleeve is arranged along the central axis of the steel pipe, and a bolt is threadedly connected to the threaded sleeve, with the end of the bolt extending out of the threaded sleeve.

[0010] In one embodiment, the surfaces of the bolt ball and the rod are both treated with anti-corrosion coating.

[0011] In one embodiment, the anti-corrosion treatment includes the following steps: first, sandblasting the surface, then sequentially spraying an anti-corrosion paint primer and an anti-corrosion paint intermediate coat, and finally spraying a topcoat; the anti-corrosion paint primer is an epoxy zinc-rich primer, the anti-corrosion paint intermediate coat is an epoxy micaceous iron oxide intermediate coat, and the topcoat is a polyurethane topcoat.

[0012] This application also provides a method for mounting a spherical space frame module, wherein the module is the aforementioned spherical space frame dome module, and the dome is hemispherical, comprising the following steps: S1. Install steel support columns along the intersection of the dome's designed location and the roof's circumference; S2. Multiple auxiliary support rods are evenly fixed along the circumference at the top of the steel column frame. The auxiliary support rods are set vertically. At least one steel cable fall protection net is fixedly installed in the area enclosed by the steel column frame. Multiple life ropes are fixed above the steel column frame. Some life ropes are set along the top of the auxiliary support rods to form a circle. One end of another life rope is fixedly connected at the center of the steel column frame and the other end is fixed to the roof. The life ropes with the ends fixed at the center of the steel column frame are laid out radially. All life ropes are always in a taut state. S3. Divide the spherical grid dome into six annular regions of equal width along the radial direction. From the center to the outer perimeter, these are the first annular region, the second annular region, the third annular region, the fourth annular region, the fifth annular region, and the sixth annular region. Look up the ball number of the bolt ball at both ends of the member according to the member number. Connect the members with bolts and assemble the corresponding bolt balls to form the above-mentioned spherical grid dome module.

[0013] S4. Use a truck crane to hoist the spherical space frame dome modules. When hoisting the spherical space frame dome modules, ensure that the position of each bolt ball matches the design position corresponding to the ball number. Each set of two space frame dome modules is a hoisting block. Hoist one set of hoisting blocks at a time. First, complete the hoisting of the spherical space frame dome modules in the sixth ring area. Then, from the outside to the inside, complete the installation of the spherical space frame dome modules in the fifth ring area, fourth ring area, third ring area, second ring area, and first ring area. After each set of hoisting blocks is installed, lay guy ropes between the two space frame dome modules. One end of the guy rope is fixed to the roof, and the other end is fixed to the bolt ball near the center between adjacent modules. The guy ropes all pass through the top of the auxiliary support rod and are in a taut state. The fixing point of the guy rope in the ring area gradually moves closer to the center as the splicing of different ring areas is completed. S5. After the spherical net frame is completely closed, remove the guy ropes, but keep the lifeline. S6. Install the roof aluminum panels on the surface of the spherical space frame, remove the life rope, and complete the installation of the spherical space frame dome.

[0014] In one implementation, in S4, the worker wears a five-point double-hook safety harness, which is attached to a lifeline. The worker stands on the spherical dome module or steel column frame to operate the connection between the rod and the bolt ball.

[0015] In one implementation, S4 further includes determining the relationship between the rods and bolt balls between the two spherical dome modules that need to be connected last if the first annular area cannot be closed. If the length of the rod is greater than the distance between the two bolt balls to be connected, proceed to S401; if the length of the rod is less than the distance between the two bolt balls to be connected, proceed to S402. S401. Set up a support frame under the bolt ball to be connected to the rod, use a jack to lift the bolt ball to the design elevation, fix the connecting rod and the lifted bolt ball, and remove the jack and support frame after the rod and the lifted bolt ball are fully tightened to complete the closure of the first ring area. S402. Secure the two bolt balls to be connected with a lifting sling, and then tighten the two bolt balls with a chain hoist to cause the upward-sloping grid frame to deflect downwards to bring the bolt balls to the design elevation. The rods are then threadedly connected to the two bolt balls, completing the closure of the first annular area.

[0016] In one implementation scheme, installing the roof aluminum panel in S6 specifically includes the following steps: S601. Weld a support rod at the corresponding ball joint; S602. Weld the main purlins, secondary purlins, and eaves steel frame sequentially onto the surface of the spherical space frame; S603. Temporarily remove the two steel cable safety nets; S604, Install the Z-shaped profiled steel sheet mounting strip; S605, Restore the two steel cable safety nets; S607. Install a dome on top of the spherical space frame; S608. Install profiled steel sheets on the surface of the spherical space frame; S609. Sequentially lay vapor barrier membrane, thermal insulation rock wool, steel plate and waterproof roll layer on the surface of spherical grid; S610. Conduct the first roof water tightness test; S611. Install the roof aluminum panels and eaves aluminum panels on the surface of the spherical space frame in sequence; S612. Apply adhesive to the aluminum roofing panels for the first time. S613, Install roof trim and apply second sealant; S614. Conduct the second roof water tightness test.

[0017] S615. After project acceptance, remove the two fall protection nets to complete the overall installation.

[0018] In one embodiment, the steel column frame in S1 includes multiple vertical steel columns, horizontal steel columns, and diagonal steel columns perpendicular to the roof. The multiple vertical steel columns are evenly arranged along the design position of the dome and the intersection of the dome and the circumference of the roof. The horizontal steel columns are parallel to the roof. The tops of adjacent vertical steel columns are fixedly connected by the horizontal steel columns. The diagonal steel columns are diagonally fixed between adjacent vertical steel columns.

[0019] Compared with the prior art, this application has at least the following beneficial effects: This application incorporates bolt balls with ball numbers and members with member numbers within the spherical space frame dome module. The design position of the bolt ball within the spherical space frame can be determined based on its ball number, and the ball numbers of the bolt balls at both ends of the member can be determined based on the member number. This allows for rapid and accurate assembly of the bolt balls and members into the module during its installation, ensuring that the position of the bolt balls during installation matches the design position corresponding to their ball numbers. This guarantees the accuracy of the spherical space frame dome module installation, maintains the smoothness of the spherical space frame curve, and improves the efficiency of the spherical space frame dome module installation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the spherical grid dome in the embodiments of this application; Figure 2 This is a schematic diagram of the spherical grid dome module in an embodiment of this application; Figure 3 This is a schematic diagram of the bolt ball structure in an embodiment of this application; Figure 4 This is a structural schematic diagram of the rod in the embodiment of this application; Figure 5 This is a schematic diagram of the connection between the bolt ball and the rod in an embodiment of this application; Figure 6 This is a structural schematic diagram illustrating the installation of the auxiliary support rod and the lifeline in the embodiments of this application; Figure 7 This is a schematic diagram of the spherical grid dome in the embodiments of this application; Figure 8 This is a schematic diagram of the hoisting of the spherical grid dome module in the sixth annular region of this application embodiment; Figure 9 This is a schematic diagram of the completed hoisting of the spherical space frame dome in an embodiment of this application; Attached reference numerals: 01, Spherical dome module; 1, Bolt ball; 2, Rod; 201, Bolt; 202, Steel pipe; 203, Cone head; 204, Threaded sleeve; 3, Steel column frame; 301, Vertical steel column; 302, Horizontal steel column; 303, Diagonal steel column; 4, Auxiliary support rod; 5, Lifeline; 6, Guy rope; 02, Roof. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0022] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0023] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms and should not be construed as indicating or implying relative importance. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0024] In the description of this invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical connection or internal connection between two components. They can be direct connection or indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] To better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0026] This embodiment provides a spherical grid dome module 01, such as Figure 1As shown, the structure includes multiple bolt balls 1 and rods 2. Multiple bolt holes are provided on the bolt balls 1, arranged radially along the bolt balls. Bolts 201 are fixed at both ends of the rods 2. The rods 2 and bolt balls 1 are threaded together, forming a cone. The bottom surface of the cone is a partial arc surface of a sphere. Bolt balls 1 are located at the apex of the cone and at some apex of the bottom surface of the cone. Bolt balls 1 within adjacent modules 01 are connected by rods 2 to assemble the modules into a spherical grid dome. Each bolt ball 1 is assigned a ball number, which allows the reference to the designed position of the bolt ball 1 within the spherical grid. Each rod 2 is assigned a rod number, which allows the reference to the ball numbers of the bolt balls at both ends of the rod 2.

[0027] The bolt ball 1 is made of 45# round steel. The rod 2 includes a steel pipe 202, with tapered heads 203 welded to both ends of the steel pipe 202. The larger end of the tapered head 203 is welded to the end of the steel pipe 202, and a threaded sleeve 204 is welded to the smaller end of the tapered head 203. The threaded sleeve 204 is arranged along the central axis of the steel pipe 202, and a bolt 201 is threadedly connected to the threaded sleeve 204. The end of the bolt 201 extends out of the threaded sleeve 204.

[0028] Each module 01 within the spherical space frame dome has the same dimension in the width direction, so as to facilitate the subsequent construction of the spherical space frame dome.

[0029] Both the bolt ball 1 and the rod 2 have undergone anti-corrosion treatment. In this embodiment, the anti-corrosion treatment includes the following steps: first, sandblasting the surface; then, sequentially spraying an anti-corrosion primer and an anti-corrosion intermediate coat; and finally, spraying a topcoat. The anti-corrosion primer is an epoxy zinc-rich primer, the anti-corrosion intermediate coat is an epoxy micaceous iron oxide intermediate coat, and the topcoat is a polyurethane topcoat. The thickness of the epoxy zinc-rich primer is 70 μm, the thickness of the epoxy micaceous iron oxide intermediate coat is 80 μm, and the thickness of the polyurethane topcoat is 50 μm.

[0030] This embodiment also provides a method for mounting a spherical space frame dome module. The module is the aforementioned spherical space frame dome mold, which is used for the installation of the dome at the Ordos Wedding Hall. The dome is generally hemispherical with a radius of 20.8m, an installation height of 15.6m, and a structural span of 41.6m, which is considered a large span. Includes the following steps: S1. Install steel column frames 3 along the intersection of the dome's designed location and the roof's circumference, such as... Figure 6 As shown, the steel column frame includes multiple vertical steel columns 301, horizontal steel columns 302, and diagonal steel columns 303 that are perpendicular to the roof. The multiple vertical steel columns 301 are evenly arranged along the design position of the dome and the intersection of the dome and the circumference of the roof. The horizontal steel columns 302 are parallel to the roof. The tops of adjacent vertical steel columns 301 are fixedly connected by the horizontal steel columns 302. The diagonal steel columns 303 are diagonally fixed between adjacent vertical steel columns 301.

[0031] S2. 24 auxiliary support rods 4, each 1.5m high, are evenly fixed along the circumference at the top of the steel column frame 3. The auxiliary support rods are set vertically. Two steel cable fall protection nets, one high and one low, are fixedly installed in the area enclosed by the steel column frame 3. The lower steel cable fall protection net is fixed at the bottom of the steel column frame 3, and the higher steel cable fall protection net is 4.3m higher than the lower steel cable fall protection net. Multiple life ropes 5 are fixed above the steel column frame 3. Some life ropes 5 are set along the top of the auxiliary support rods 4 to form a circle. One end of some life ropes 5 is fixed and connected at the center of the circle of the steel column frame 3, and the other end of some life ropes is fixed to the roof 02. The life ropes fixed at the center of the circle of the steel column frame 3 are laid radially. All life ropes are in a taut state.

[0032] S3. Divide the spherical grid dome into six annular regions of equal width along the radial direction. From the center to the outer perimeter, these are the first annular region, the second annular region, the third annular region, the fourth annular region, the fifth annular region, and the sixth annular region. Look up the ball number of the bolt ball at both ends of the member according to the member number. Connect the bolt member 2 and the corresponding bolt ball 1 to assemble the above-mentioned spherical grid dome module 01.

[0033] S4. Use a truck crane to hoist the spherical space frame dome module 01. When hoisting the spherical space frame dome module 01, ensure that the position of each bolt ball matches the design position corresponding to the ball number of the bolt ball. Every two space frame dome modules 01 form a hoisting block. Hoist one hoisting block at a time. First, hoist the spherical space frame dome module 01 of the sixth ring area. Then, complete the installation of the spherical space frame dome modules 01 of the fifth ring area, fourth ring area, third ring area, second ring area, and first ring area from the outside to the inside. After each set of hoisting blocks is installed, lay a guy rope 6 between the two space frame dome modules. One end of the guy rope 6 is fixed to the roof, and the other end of the guy rope 6 is fixed to the bolt ball 1 near the center between the adjacent modules. The guy rope 6 is tensioned through the top of the auxiliary support rod 4. The fixing point of the guy rope 6 in the ring area gradually moves closer to the center as the splicing of different ring areas is completed.

[0034] Guy ropes are used to prevent deformation and deflection of the spherical grid dome during module hoisting. Guy rope 6 is a 14mm diameter steel wire rope.

[0035] In this embodiment, the worker wears a five-point double-hook safety belt, which is attached to the lifeline 5. The worker stands on the spherical dome module 01 or the steel column frame 3 to operate the connection between the rod 2 and the bolt ball 1.

[0036] S5. After the spherical net frame is fully closed, remove the guy ropes 6, but keep the lifeline 5.

[0037] S6. Install the roof aluminum panels on the surface of the spherical space frame, remove the life rope, and complete the installation of the spherical space frame dome.

[0038] The specific steps for installing aluminum roof panels in S6 include: S601. Weld a support rod at the corresponding ball joint; S602. Weld the main purlins, secondary purlins, and eaves steel frame sequentially onto the surface of the spherical space frame; S603. Temporarily remove the two steel cable safety nets; S604, Install the Z-shaped profiled steel sheet mounting strip; S605, Restore the two steel cable safety nets; S607. Install a dome on top of the spherical space frame; S608. Install profiled steel sheets on the surface of the spherical space frame; S609. Sequentially lay vapor barrier membrane, thermal insulation rock wool, steel plate and waterproof roll layer on the surface of spherical grid; S610. Conduct the first roof water tightness test; S611. Install the roof aluminum panels and eaves aluminum panels on the surface of the spherical space frame in sequence; S612. Apply adhesive to the aluminum roofing panels for the first time. S613, Install roof trim and apply second sealant; S614. Conduct the second roof water tightness test.

[0039] S615. After project acceptance, remove the two fall protection nets to complete the overall installation.

[0040] S4 also includes: if the first annular area cannot be closed, then determine the relationship between the rod 2 and the bolt ball 1 between the two spherical dome modules 01 that need to be connected last. If the length of the rod 2 is greater than the distance between the two bolt balls to be connected, then proceed to S401; if the length of the rod 2 is less than the distance between the two bolt balls to be connected, then proceed to S402. S401. Set up a support frame under the bolt ball to be connected to member 2, use a 5-ton jack to lift the bolt ball to the design elevation, fix the connecting member and the lifted bolt ball, and remove the jack and support frame after the member and the lifted bolt ball are all tightened to complete the closure of the first ring area. S402. Secure the two bolt balls to be connected with a 3-ton lifting sling, and then tighten the two bolt balls with a 2-ton chain hoist, causing the upward-sloping grid frame to deflect downwards to bring the bolt balls to the design elevation. The rods are then threadedly connected to the two bolt balls, completing the closure of the first annular area.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A spherical grid dome module, characterized in that, It includes multiple bolt balls and rods. Each bolt ball has multiple bolt holes arranged radially along its length. Bolts are fixed at both ends of each rod, which are threadedly connected to the bolt balls. The connection between the bolt balls and rods forms a cone. The bottom surface of the cone is a partial arc of a sphere. Bolt balls are located at the apex of the cone and at some apex of the bottom surface. Bolt balls in adjacent modules are connected by rods to assemble the modules into a spherical grid dome. Each bolt ball is marked with a ball number, allowing the user to determine its design position within the spherical grid. Each rod is marked with a rod number, allowing the user to determine the ball numbers of the bolt balls at both ends of the rod.

2. The spherical grid dome module according to claim 1, characterized in that, The rod includes a steel pipe with tapered ends welded to both ends. The larger end of the tapered end is welded to the end of the steel pipe, and the smaller end of the tapered end is welded to a threaded sleeve. The threaded sleeve is arranged along the central axis of the steel pipe, and a bolt is threadedly connected to the threaded sleeve, with the end of the bolt extending out of the threaded sleeve.

3. The spherical grid dome module according to claim 1, characterized in that, The surfaces of the bolt ball and rod are all treated with anti-corrosion measures.

4. The spherical grid dome module according to claim 3, characterized in that, The anti-corrosion treatment includes the following steps: first, the surface is sandblasted, then an anti-corrosion paint primer and an anti-corrosion paint intermediate coat are sprayed in sequence, and finally a topcoat is sprayed; the anti-corrosion paint primer is an epoxy zinc-rich primer, the anti-corrosion paint intermediate coat is an epoxy micaceous iron oxide intermediate coat, and the topcoat is a polyurethane topcoat.

5. A method for mounting a spherical grid dome module, characterized in that, The module is the spherical grid dome module according to any one of claims 1-4, wherein the dome is hemispherical and includes the following steps: S1. Install steel support columns along the intersection of the dome's designed location and the roof's circumference; S2. Multiple auxiliary support rods are evenly fixed along the circumference at the top of the steel column frame. The auxiliary support rods are set vertically. At least one steel cable fall protection net is fixedly installed in the area enclosed by the steel column frame. Multiple life ropes are fixed above the steel column frame. Some life ropes are set along the top of the auxiliary support rods to form a circle. One end of another life rope is fixedly connected at the center of the steel column frame and the other end is fixed to the roof. The life ropes with the ends fixed at the center of the steel column frame are laid out radially. All life ropes are always in a taut state. S3. Divide the spherical grid dome into six annular regions of equal width along the radial direction. From the center to the outer perimeter, they are the first annular region, the second annular region, the third annular region, the fourth annular region, the fifth annular region, and the sixth annular region. Look up the ball number of the bolt ball at both ends of the member according to the member number. The bolted members and the corresponding bolt balls are assembled into the above-mentioned spherical grid dome module. S4. Use a truck crane to hoist the spherical space frame dome modules. When hoisting the spherical space frame dome modules, ensure that the position of each bolt ball matches the design position corresponding to the ball number. Each set of two space frame dome modules is a hoisting block. Hoist one set of hoisting blocks at a time. First, complete the hoisting of the spherical space frame dome modules in the sixth ring area. Then, from the outside to the inside, complete the installation of the spherical space frame dome modules in the fifth ring area, fourth ring area, third ring area, second ring area, and first ring area. After each set of hoisting blocks is installed, lay guy ropes between the two space frame dome modules. One end of the guy rope is fixed to the roof, and the other end is fixed to the bolt ball near the center between adjacent modules. The guy ropes all pass through the top of the auxiliary support rod and are in a taut state. The fixing point of the guy rope in the ring area gradually moves closer to the center as the splicing of different ring areas is completed. S5. After the spherical net frame is fully closed, remove the guy ropes, but keep the lifeline. S6. Install the roof aluminum panels on the surface of the spherical space frame, remove the life ropes, and complete the installation of the spherical space frame dome.

6. The method for mounting a spherical grid dome module according to claim 5, characterized in that, In S4, workers wear five-point double-hook safety harnesses, which are attached to lifelines. Workers stand on the spherical grid dome module or steel column frame to operate the connection between the rods and the bolt balls.

7. The method for mounting a spherical grid dome module according to claim 5, characterized in that, S4 also includes, if the first annular area cannot be closed, then determine the relationship between the rods and bolt balls between the two spherical dome modules that need to be connected last. If the length of the rod is greater than the distance between the two bolt balls to be connected, then proceed to S401. If the length of the rod is less than the distance between the two bolt balls to be connected, then proceed to S402. S401. Set up a support frame under the bolt ball to be connected to the rod, use a jack to lift the bolt ball to the design elevation, fix the connecting rod and the lifted bolt ball, and remove the jack and support frame after the rod and the lifted bolt ball are fully tightened to complete the closure of the first ring area. S402. Secure the two bolt balls to be connected with a lifting sling, and then tighten the two bolt balls with a chain hoist to cause the upward-sloping grid frame to deflect downwards to bring the bolt balls to the design elevation. The rods are then threadedly connected to the two bolt balls, completing the closure of the first annular area.

8. The method for mounting a spherical grid dome module according to claim 5, characterized in that, The installation of roof aluminum panels in S6 specifically includes the following steps: S601. Weld a support rod at the corresponding ball joint; S602. Weld the main purlins, secondary purlins, and eaves steel frame sequentially onto the surface of the spherical space frame; S603. Temporarily remove the two steel cable safety nets; S604, Install the Z-shaped profiled steel sheet mounting strip; S605, Restore the two steel cable safety nets; S607. Install a dome on top of the spherical space frame; S608. Install profiled steel sheets on the surface of the spherical space frame; S609. Sequentially lay vapor barrier membrane, thermal insulation rock wool, steel plate and waterproof roll layer on the surface of spherical grid; S610. Conduct the first roof water tightness test; S611. Install the roof aluminum panels and eaves aluminum panels on the surface of the spherical space frame in sequence; S612. Apply adhesive to the aluminum roofing panels for the first time. S613, Install roof trim and apply second sealant; S614. Conduct the second roof water tightness test; S615. After project acceptance, remove the two fall protection nets to complete the overall installation.

9. The method for mounting a spherical grid dome module according to claim 5, characterized in that, The steel column frame described in S1 includes multiple vertical steel columns, horizontal steel columns, and diagonal steel columns that are perpendicular to the roof. The multiple vertical steel columns are evenly arranged along the design position of the dome and the intersection of the dome and the circumference of the roof. The horizontal steel columns are parallel to the roof. The tops of adjacent vertical steel columns are fixedly connected by the horizontal steel columns. The diagonal steel columns are fixed diagonally between adjacent vertical steel columns.

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