Mounting method of steel roof structure

Abstract

The invention relates to the technical field of steel structure construction, in particular to an installation method of a steel roof structure, the steel roof structure is a spoke type tension structure, the spoke type tension structure is divided into four areas of an outer ring, a vertical face grid, an inner ring and a roof grid, hoisting operation is carried out in different areas, the weight and size of single-time hoisting are reduced, and the construction efficiency is improved. The dependence on heavy hoisting equipment is reduced, so that the construction cost is effectively controlled, the temporary support is used for providing stable support for components in all areas in the hoisting process, it is ensured that the components in all the areas are accurately in place, and potential safety hazards are avoided. According to the technical scheme, the inlaying sections are reserved between the hoisting units, the inlaying sections are installed after the hoisting units are installed in place, constructors can ensure tight and smooth connection of adjacent components of the steel grid structure by adjusting the sizes or inclination angles of the inlaying sections, the construction process is optimized, and the construction efficiency is improved. And the construction quality is considered while the construction efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure construction, in particular to an installation method of a steel roof structure. Background Art

[0002] Steel roof structure refers to the roof structure of a building with steel as the main load-bearing material, which is suitable for large-span buildings. As a special type of steel roof structure, the spoke tension structure draws on the design principle of bicycle wheels. Through a series of cables radiating from the center to the outside (similar to the spokes of a wheel) and annular components around the edge (similar to the outer ring of a wheel), a lightweight and strong structural system is constructed. It can effectively cover a large area of ​​column-free space, so it is widely used in stadiums, exhibition halls and other large public facilities. According to its stiffness characteristics, the spoke tension structure can be further divided into three categories: rigid, semi-rigid and flexible. Among them, the rigid spoke-type tensile structure has relatively high rigidity of each component, and all external loads hardly cause any obvious bending or stretching, and are directly transmitted to the foundation or supporting structure. Usually, a large amount of steel and concrete are required to ensure that the structure has sufficient strength and stability; the flexible spoke-type tensile structure focuses on utilizing the tensile properties of the material, relying on a high-strength cable system to provide the necessary support, and using prestressed technology to maintain the overall equilibrium of the structure; and the semi-rigid spoke-type tensile structure is between the two, allowing a certain degree of elastic deformation while maintaining a certain rigidity characteristic, and can stably maintain its original form over a larger range.

[0003] For the above three types of spoke-type tensioned structures, traditional construction methods mainly include the overall lifting method and the high-altitude scattered assembly method. The overall lifting method is to lift the spoke-type tensioned structure to the designed height as a whole after most of the assembly work is completed on the ground. The overall lifting method requires a large amount of heavy lifting equipment to support the vertical lifting of the entire spoke-type tensioned structure, which increases the cost and complexity of construction; although the high-altitude scattered assembly method does not need to rely on a large amount of heavy lifting equipment, it requires a large amount of assembly work at high altitudes because it is assembled in a dispersed manner at high altitudes, which not only increases the danger of construction, but also increases the construction period and cost. The long construction period also makes the construction more susceptible to weather conditions. The overall lifting method has the problems of large equipment demand and high cost, while the high-altitude scattered assembly method faces the defects of high construction danger, long construction period, and susceptibility to weather. These problems limit the wide application of spoke-type tensioned structures and the improvement of construction efficiency. Summary of the invention

[0004] The technical problems to be solved by the present invention are:

[0005] The existing construction methods for spoke-type tensioned structures mainly include the overall lifting method and the high-altitude scattered assembly method. The overall lifting method has the problems of large equipment requirements and high cost, while the high-altitude scattered assembly method faces the defects of high construction risk, long construction period, and susceptibility to weather influences. These problems limit the widespread application of spoke-type tensioned structures and the improvement of construction efficiency.

[0006] In order to solve the above technical problems, the present invention provides an installation method of a steel roof structure, wherein the steel roof structure is a spoke-type tensioned structure, which comprises a grandstand pipe column, a steel grid, an outer pressure ring, and an inner pressure ring. A plurality of grandstand pipe columns are arranged circumferentially, and the plurality of grandstand pipe columns are fixed to the ground in an annular manner. The outer pressure ring is arranged on the top of the plurality of grandstand pipe columns arranged in an annular manner, and the inner pressure ring is arranged on the inner side of the outer pressure ring. The steel grid connects the outer pressure ring and the inner pressure ring.

[0007] The installation method of the spoke-type tension structure includes the following steps:

[0008] S1. Divide the construction area, set the outer pressure ring and the stand pipe column at the bottom thereof as the outer ring area, and the inner pressure ring as the inner ring area; set the steel grid grid outside the outer pressure ring as the facade grid area, and set the steel grid grid inside the outer pressure ring as the roof grid area;

[0009] S2, hoisting and fixing each stand pipe column in the outer ring area, and fixing the outer pressure ring on the top of each stand pipe column;

[0010] S3, dividing the facade grid area into a plurality of facade hoisting units arranged in a ring shape and a plurality of facade patching sections arranged in a ring shape, installing a plurality of first temporary supports arranged in a ring shape on the outer peripheral surface of the facade grid area, hoisting each facade hoisting unit to the top of each first temporary support, each facade hoisting unit is fixedly connected to each first temporary support, each facade grid unit is fixedly connected to an external pressure ring, hoisting each facade patching section between two adjacent facade hoisting units, fixing each facade patching section to the external pressure ring, and disassembling each first temporary support;

[0011] S4, erecting a plurality of second temporary supports in a ring shape in the circumferential direction of the inner ring area, and fixing the inner pressure ring on the top of each second temporary support;

[0012] S5. Divide the roof grid area into a number of ring-shaped roof hoisting units and a number of ring-shaped roof patching sections, set up a number of third temporary supports in a ring-shaped manner around the roof grid area, hoist each roof hoisting unit to the top of each third temporary support, each roof hoisting unit is arranged in the space between the outer pressure ring and the inner pressure ring, and both ends of each roof hoisting unit are fixedly connected to the outer pressure ring and the inner pressure ring respectively; hoist each roof patching section between two adjacent roof hoisting units, and both ends of each roof patching section are fixedly connected to the outer pressure ring and the inner pressure ring respectively.

[0013] Preferably, in step S1, dividing the construction area specifically further comprises: setting a plurality of facade grid assembly sites on the periphery of the facade grid area, and completing the assembly of each facade hoisting unit at the facade grid assembly site;

[0014] A number of roof grid assembly sites are arranged around the roof grid area, and the assembly of each roof hoisting unit is completed at the roof grid assembly sites.

[0015] Preferably, in step S3, each facade hoisting unit is hoisted to the top of each first temporary support, each facade hoisting unit is fixedly connected to each first temporary support, and each facade grid unit is fixedly connected to the outer pressure ring, including:

[0016] Each facade hoisting unit is further divided into a number of upper facade grid hoisting blocks and a number of lower facade grid hoisting blocks. Each upper facade grid hoisting block is hoisted to the outer end of each first temporary support, each upper facade grid hoisting block is fixedly connected to each first temporary support, each lower facade grid hoisting block is hoisted to the top of each upper facade grid hoisting block, and both ends of each lower facade grid are fixedly connected to each upper facade grid hoisting block and the outer pressure ring.

[0017] Preferably, the facade grid area is divided into eight facade hanging units and eight facade inlay segments, and each facade hanging unit is further divided into four upper facade grid hanging blocks and four lower facade grid hanging blocks, the four upper facade grid hanging blocks are sequentially the first upper facade hanging block, the second upper facade hanging block, the third upper facade hanging block and the fourth upper facade hanging block, and the four lower facade grid hanging blocks are sequentially the first lower facade hanging block, the second lower facade hanging block, the third lower facade hanging block and the fourth lower facade hanging block corresponding to each upper facade grid hanging block. The hanging of the facade grid area specifically includes:

[0018] S301: hoisting the first lower facade hoisting block to the outer end of the first temporary support, the first lower facade hoisting block is fixedly connected to the first temporary support, hoisting the second lower facade hoisting block to the outer end of the first temporary support, the second lower facade hoisting block is fixedly connected to the first temporary support and the first lower facade hoisting block;

[0019] S302: hoisting the first upper facade hoisting block to the top of the first lower facade hoisting block, and fixing the two ends of the first upper facade hoisting block to the first lower facade hoisting block and the outer pressure ring respectively;

[0020] S303: hoisting the third lower facade hoisting block to the outer end of the first temporary support, the third lower facade hoisting block is fixedly connected to the first temporary support and the second lower facade hoisting block, hoisting the second upper facade hoisting block to the top of the second lower facade hoisting block, the two ends of the second upper facade hoisting block are respectively fixedly connected to the second lower facade hoisting block and the outer pressure ring, and the side surface of the second upper facade hoisting block is fixedly connected to the first upper facade hoisting block;

[0021] S304: hoisting the fourth lower facade hoisting block to the outer end of the first temporary support, the fourth lower facade hoisting block is fixedly connected to the first temporary support and the third lower facade hoisting block, hoisting the third upper facade hoisting block to the top of the third lower facade hoisting block, the two ends of the third upper facade hoisting block are respectively fixedly connected to the third lower facade hoisting block and the outer pressure ring, and the side of the third upper facade hoisting block is fixedly connected to the second upper facade hoisting block;

[0022] S305: hoisting the fourth upper facade hoisting block to the top of the fourth lower facade hoisting block, the two ends of the fourth upper facade hoisting block are respectively fixedly connected to the fourth lower facade hoisting block and the outer pressure ring, and the side surface of the fourth upper facade hoisting block is fixedly connected to the third upper facade hoisting block;

[0023] S306: Repeat S301 to S305, hoist each facade patching section between adjacent facade hoisting units, fix both sides of each facade patching section to the facade hoisting unit, fix each facade patching section to the outer pressure ring, and remove each first temporary support.

[0024] Preferably, each first temporary support is an outer ring frame, and the top of each outer ring frame is fixedly connected with a connecting steel, and the connecting steel is used for welding and fixing with each lower facade grid lifting block.

[0025] Preferably, each second temporary support is an inner ring tire frame, and the inner pressure ring is welded to the top end of each inner ring tire frame.

[0026] Preferably, in step S5, the roof grid area is divided into a plurality of roof hoisting units and a plurality of roof patching sections along the annular direction, a plurality of third temporary supports are set up in an annular shape in the circumferential direction of the roof grid area, each roof hoisting unit is hoisted to the top of each third temporary support, and both ends of each roof grid unit are fixedly connected to the outer pressure ring and the inner pressure ring, respectively, including:

[0027] Each roof hoisting unit is further divided into a number of roof grid hoisting blocks, each roof grid hoisting block is hoisted to the top of each third temporary support, each roof grid hoisting block is fixedly connected to the third temporary support, and both ends of each roof grid hoisting block are fixedly connected to the outer pressure ring and the inner pressure ring.

[0028] Preferably, the roof grid area is divided into eight roof hoisting units and eight roof patching sections, each roof hoisting unit is further divided into four roof grid hoisting blocks, the four roof grid hoisting blocks are sequentially a first roof hoisting block, a second roof hoisting block, a third roof hoisting block and a fourth roof hoisting block, and the hoisting of the roof grid area specifically includes:

[0029] S501: hoisting the first roof hoisting block to the top of the third temporary support, the first roof hoisting block is fixedly connected to the third temporary support, and both ends of the first roof hoisting block are fixedly connected to the outer pressure ring and the inner pressure ring respectively;

[0030] S502: hoisting the second roof hoisting block to the top of the third temporary support, the second roof hoisting block is fixedly connected to the third temporary support and the first roof hoisting block, and both ends of the second roof hoisting block are fixedly connected to the outer pressure ring and the inner pressure ring respectively;

[0031] S503: hoisting the third roof hoisting block to the top of the third temporary support, the third roof hoisting block is fixedly connected to the third temporary support and the second roof hoisting block, and both ends of the third roof hoisting block are fixedly connected to the outer pressure ring and the inner pressure ring respectively;

[0032] S504: hoisting the fourth roof hoisting block to the top of the third temporary support, the fourth roof hoisting block is fixedly connected to the third temporary support and the third roof hoisting block, and both ends of the fourth roof hoisting block are fixedly connected to the outer pressure ring and the inner pressure ring respectively;

[0033] S505: Repeat S501 to S504, hoist each roof patching section between adjacent roof hoisting units, both sides of each roof patching section are fixedly connected to the roof hoisting unit, and both ends of each roof patching section are fixedly connected to the outer pressure ring and the inner pressure ring respectively.

[0034] Preferably, each third temporary support is a middle ring frame, each roof grid lifting block and each roof patching section are located at the top of each middle ring frame, and a clamping plate is fixedly connected to the top of each middle ring frame.

[0035] Preferably, the spoke-type tension structure further includes a cable structure, the cable structure includes an annular cable, a radial cable, a flying column and an inclined cable, a plurality of struts are connected to the lower part of the steel grid grid at intervals, each strut is suspended downward, and each strut is arranged in a ring shape, and the installation method of the spoke-type tension structure further includes:

[0036] S6. Stretch and unfold the circumferential cables and radial cables, lift the circumferential cables and radial cables to a preset height, arrange a number of circumferential cable clamps at intervals on the circumferential cables, each circumferential cable clamp is fixedly connected to each strut, one end of each radial cable is fixedly connected to each circumferential cable clamp, the other end of each radial cable is fixedly connected to an outer pressure ring, one end of the fly column is fixedly connected to one end of the radial cable connected to each circumferential cable clamp, the other end of the fly column is fixedly connected to the lower part of the steel grid, one end of the oblique cable is fixed to the circumferential cable, and one end of the oblique cable is anchored to the ground or the steel grid.

[0037] Compared with the prior art, the installation method of a steel grid structure in the embodiment of the present invention has the following beneficial effects:

[0038] The embodiment of the present invention divides the spoke-type tension structure into four areas: an outer ring, a facade grid, an inner ring, and a roof grid, and performs hoisting operations in different areas, thereby reducing the weight and volume of a single hoisting and reducing the reliance on heavy lifting equipment, thereby effectively controlling construction costs. During the hoisting process, temporary supports are used to provide stable support for components in each area to ensure that the components in each area are accurately in place and avoid potential safety hazards. For the facade grid area and the roof grid area, the present invention further divides the steel grid structure in these two areas into multiple independent hoisting units. Such a division not only further reduces the weight and volume of a single hoisting, but also facilitates the parallel operation of multiple construction units, significantly speeding up the overall construction progress. In addition, a patching section is reserved between each lifting unit. The patching section is installed after each lifting unit is in place. Slight position deviations are inevitable in the process of installing the lifting unit. Construction personnel can ensure the tightness and smoothness of the connection between adjacent components of the steel grid structure by adjusting the size or inclination angle of the patching section. While improving the construction efficiency, it avoids the common problems of splicing misalignment or irregular gaps between adjacent components in traditional splicing methods, thereby improving the installation quality and accuracy of the rigid roof structure. The installation method of the steel grid structure provided in this application not only optimizes the construction process, but also significantly improves the construction efficiency while taking into account the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the overall structure of a method for installing a steel grid structure according to a preferred embodiment of the present invention;

[0040] Figure 2 is a schematic diagram of the overall area division of the facade grid area of ​​a preferred embodiment of the present invention;

[0041] Figure 3 It is a schematic diagram of the regional division of the roof grid area in a preferred embodiment of the present invention;

[0042] Figure 4is a schematic diagram of the local area division of the facade grid area of ​​a preferred embodiment of the present invention;

[0043] Figure 5 Schematic diagram of the division of the facade hanging unit of the preferred embodiment of the present invention Figure 1 ;

[0044] Figure 6 Schematic diagram of the division of the facade hanging unit of the preferred embodiment of the present invention Figure 2 ;

[0045] Figure 7 It is a schematic diagram of the hoisting of the lower facade grid hoisting block of the preferred embodiment of the present invention;

[0046] Figure 8 It is a schematic diagram of the hoisting of the upper facade grid hoisting block of the preferred embodiment of the present invention;

[0047] Fig. 9 The schematic diagram of the hoisting of the roof grid hoisting block of the preferred embodiment of the present invention is Figure 1 ;

[0048] Fig.10 The schematic diagram of the hoisting of the roof grid hoisting block of the preferred embodiment of the present invention is Figure 2 ;

[0049] Fig.11 It is a schematic diagram of fixing the lower facade grid hanging block and the first temporary support in a preferred embodiment of the present invention;

[0050] Fig.12 It is a schematic diagram of fixing the inner pressure ring and the second temporary support according to a preferred embodiment of the present invention.

[0051] In the figure, 1. grandstand pipe column; 2. steel grid; 3. outer pressure ring; 4. inner pressure ring; 5. cable structure; 6. outer ring area; 7. inner ring area; 8. facade grid area; 9. roof grid area; 10. facade hoisting unit; 11. facade patching section; 12. first temporary support; 13. second temporary support; 14. roof hoisting unit; 15. roof patching section; 16. third temporary support; 17. upper facade grid hoisting block; 18. lower facade grid hoisting block; 19. roof grid hoisting block. DETAILED DESCRIPTION

[0052] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0053] like Figure 1As shown, a method for installing a steel roof structure according to a preferred embodiment of the present invention, the steel roof structure is a spoke tension structure, the spoke tension structure comprises a stand pipe column 1, a steel grid 2, an outer pressure ring 3, and an inner pressure ring 4, a plurality of stand pipe columns 1 are arranged circumferentially, a plurality of stand pipe columns 1 are fixed to the ground in an annular interval, the outer pressure ring 3 is arranged on the top of the plurality of stand pipe columns 1 arranged in an annular shape, the inner pressure ring 4 is arranged on the inner side of the outer pressure ring 3, and the steel grid 2 connects the outer pressure ring 3 and the inner pressure ring 4;

[0054] The installation method of the spoke type tension structure comprises the following steps;

[0055] S1. Divide the construction area;

[0056] The outer pressure ring 3 and the stand pipe column 1 at the bottom thereof are set as the outer ring area 6, and the inner pressure ring 4 is set as the inner ring area 7; the steel grid grid 2 located outside the outer pressure ring 3 is set as the facade grid area 8, and the steel grid grid 2 located inside the outer pressure ring 3 is set as the roof grid area 9;

[0057] In actual use, after the area is divided, targeted foundation treatment measures are taken for each construction area, the existing site road surface is protected by laying roadbed boxes, steel plates and other measures, and pre-compression bearing capacity tests are carried out on the crane station area and foundation pedestal to ensure that the foundation of each construction area meets the functional requirements;

[0058] S2, hoisting of the outer ring area 6;

[0059] Each stand pipe column 1 is hoisted and fixed in the outer ring area 6, and the outer pressure ring 3 is fixed on the top of each stand pipe column 1;

[0060] In actual use, a lifting point is set on each stand column 1. The setting of the lifting point needs to consider the ease of lifting, stability and reliability, and avoidance of deformation of steel components. The lifting point of each stand column 1 is set at the top, and four lifting points are set symmetrically in the circumferential direction. In order to ensure the balance of lifting, four single ropes of sufficient strength are hung under the hook to cooperate with the four lifting points for lifting. In order to prevent the stand column 1 from dragging on the ground during lifting and causing damage to the ground and the stand column 1, a sufficient number of sleepers should be padded under the stand column 1. During lifting, the three actions of hooking, rotating, and moving are performed alternately and slowly. During the lifting process, the cable wind rope is used to pull the stand column 1 to keep it stable. After the lifting and fixation of the stand column 1 are completed, the external pressure ring 3 is embedded in each stand column 1 section by section.

[0061] S3, hoisting the facade grid area 8;

[0062] The facade grid area 8 is divided into a plurality of facade hoisting units 10 and a plurality of facade patching sections 11 arranged in a ring shape, a plurality of first temporary supports 12 arranged in a ring shape are installed on the outer peripheral surface of the facade grid area 8, each facade hoisting unit 10 is hoisted to the top of each first temporary support 12, each facade hoisting unit 10 is fixedly connected to each first temporary support 12, each facade grid unit is fixedly connected to the outer pressure ring 3, each facade patching section 11 is hoisted between two adjacent facade hoisting units 10, each facade patching section 11 is fixedly connected to the outer pressure ring 3, and each first temporary support 12 is disassembled;

[0063] In actual use, the facade grid area 8 is divided into multiple facade hoisting units 10 and multiple facade patching sections 11 with the cross-connection points of the steel grid 2 as nodes, ensuring that the mass of each facade hoisting unit 10 and each facade patching section 11 is less than the maximum hoisting mass of the hoisting equipment, thereby avoiding equipment damage or safety accidents caused by overloading during the hoisting process.

[0064] A number of first temporary supports 12 are circumferentially erected on the outer circumference of the facade grid area 8 . It is necessary to ensure that each first temporary support 12 is stable and does not shake, and the bearing capacity of each first temporary support 12 needs to be checked to ensure the safe lifting of the facade lifting unit 10 .

[0065] S4, hoisting of the inner ring area 7;

[0066] A plurality of second temporary supports 13 are set up in a ring shape in the circumferential direction of the inner ring area 7, and the inner pressure ring 4 is fixed on the top of each second temporary support 13;

[0067] During actual use, several second temporary supports 13 are set up in a ring shape in the circumference of the inner ring area 7 to ensure that each second temporary support 13 is stable and does not shake, and the bearing capacity of each second temporary support 13 needs to be checked to ensure the safe lifting of the inner pressure ring 4. After the second temporary supports 13 are set up, the inner pressure ring 4 is embedded in each second temporary support 13 section by section.

[0068] S5, hoisting the roof grid area 9;

[0069] The roof grid area 9 is divided into a plurality of ring-shaped roof hanging units 14 and a plurality of ring-shaped roof patching sections 15, a plurality of third temporary supports 16 are set up in a ring shape around the roof grid area 9, each roof hanging unit 14 is hung to the top of each third temporary support 16, each roof hanging unit 14 is arranged in the space between the outer pressure ring 3 and the inner pressure ring 4, and the two ends of each roof hanging unit 14 are fixedly connected to the outer pressure ring 3 and the inner pressure ring 4, respectively; each roof patching section 15 is hung between two adjacent roof hanging units 14, and the two ends of each roof patching section 15 are fixedly connected to the outer pressure ring 3 and the inner pressure ring 4, respectively.

[0070] In actual use, the roof grid area 9 is divided into multiple roof hoisting units 14 and multiple roof patching sections 15 with the cross-connection points of the steel grid 2 as nodes, ensuring that the mass of each roof hoisting unit 14 and each roof patching section 15 is less than the maximum hoisting mass of the hoisting equipment, avoiding equipment damage or safety accidents caused by overloading during the hoisting process.

[0071] By dividing the spoke-type tension structure into four areas, namely the outer ring, the facade grid, the inner ring and the roof grid, and performing hoisting operations in different areas, the weight and volume of a single hoisting are reduced, and the reliance on heavy lifting equipment is reduced, thereby effectively controlling the construction cost. During the hoisting process, temporary supports are used to provide stable support for the components in each area, ensuring that the components in each area are accurately in place and avoiding safety hazards. For the facade grid area 8 and the roof grid area 9, the present invention further divides the steel grid structure in these two areas into a plurality of independent hoisting units. Such a division not only further reduces the weight and volume of a single hoisting, but also facilitates the parallel operation of multiple construction units, significantly speeding up the overall construction progress. In addition, a patching section is reserved between each lifting unit. The patching section is installed after each lifting unit is in place. Slight position deviations are inevitable in the process of installing the lifting unit. Construction personnel can ensure the tightness and smoothness of the connection between adjacent components of the steel grid structure by adjusting the size or inclination angle of the patching section. While improving the construction efficiency, it avoids the common problems of splicing misalignment or irregular gaps between adjacent components in traditional splicing methods, thereby improving the installation quality and accuracy of the rigid roof structure. The installation method of the steel grid structure provided in this application not only optimizes the construction process, but also significantly improves the construction efficiency while taking into account the construction quality.

[0072] Specifically, in step S1, the division of the construction area specifically further includes: setting a plurality of facade grid assembly sites on the periphery of the facade grid area 8, and completing the assembly of each facade hoisting unit 10 at the facade grid assembly site;

[0073] In actual use, a plurality of facade grid assembly sites are arranged at intervals in the outer side of the facade grid area 8, and after the assembly of each facade hoisting unit 10 is completed, each cross connection point of each facade hoisting unit 10 is welded;

[0074] A plurality of roof grid assembly sites are arranged around the roof grid area 9, and the assembly of each roof hoisting unit 14 is completed at the roof grid assembly site;

[0075] In actual use, a plurality of roof grid assembly sites are arranged at intervals in the inner side of the roof grid area 9, and after the assembly of each roof hoisting unit 14 is completed, each cross connection point of each roof hoisting unit 14 is welded;

[0076] By rationally planning the assembly site, the site utilization efficiency is improved. The hoisting units in different areas work in their respective assembly sites, avoiding mutual interference between the hoisting units and improving construction efficiency and quality.

[0077] Specifically, in step S3, each facade hoisting unit 10 is hoisted to the top of each first temporary support 12, each facade hoisting unit 10 is fixedly connected to each first temporary support 12, and each facade grid unit is fixedly connected to the outer pressure ring 3, including:

[0078] Each facade hoisting unit 10 is further divided into a plurality of upper facade grid hoisting blocks 17 and a plurality of lower facade grid hoisting blocks 18. Each upper facade grid hoisting block 17 is hoisted to the outer end of each first temporary support 12, and each upper facade grid hoisting block 17 is fixedly connected to each first temporary support 12. Each lower facade grid hoisting block 18 is hoisted to the top of each upper facade grid hoisting block 17, and both ends of each lower facade grid are fixedly connected to each upper facade grid hoisting block 17 and the outer pressure ring 3.

[0079] In actual use, each facade hanging unit 10 is further divided into a plurality of upper facade grid hanging blocks 17 and a plurality of lower facade grid hanging blocks 18 with the cross connection points of the steel grid frame 2 as nodes.

[0080] Specifically, when the facade hoisting unit 10 is divided, the weight of each upper facade grid hoisting block 17 and each lower facade grid hoisting block 18 can be kept consistent, which not only further reduces the weight and volume of a single hoisting, but also facilitates the use of lifting devices of the same model or similar specifications to complete the hoisting work of the entire facade grid area 8, thereby effectively controlling construction costs.

[0081] Before lifting, the specific lifting points are reasonably determined according to the shapes and centers of gravity of the upper and lower facade grid lifting blocks 17 and 18. The principle of determining the lifting points is to prevent the upper and lower facade grid lifting blocks 17 and 18 from tilting or becoming unbalanced during the lifting process, thereby ensuring the stability of the entire lifting process and guaranteeing the safety of the lifting operation.

[0082] Specifically, the facade grid area 8 is divided into eight facade hanging units 10 and eight facade inlay sections 11, and each facade hanging unit 10 is further divided into four upper facade grid hanging blocks 17 and four lower facade grid hanging blocks 18. The four upper facade grid hanging blocks 17 are the first upper facade hanging block, the second upper facade hanging block, the third upper facade hanging block and the fourth upper facade hanging block, respectively, and the four lower facade grid hanging blocks 18 are the first lower facade hanging block, the second lower facade hanging block, the third lower facade hanging block and the fourth lower facade hanging block corresponding to each upper facade grid hanging block 17. The hanging of the facade grid area 8 specifically includes:

[0083] S301: hoisting the first lower facade hoisting block to the outer end of the first temporary support 12, the first lower facade hoisting block is fixedly connected to the first temporary support 12, hoisting the second lower facade hoisting block to the outer end of the first temporary support 12, the second lower facade hoisting block is fixedly connected to the first temporary support 12 and the first lower facade hoisting block;

[0084] S302: hoisting the first upper facade hoisting block to the top of the first lower facade hoisting block, and the two ends of the first upper facade hoisting block are respectively fixedly connected to the first lower facade hoisting block and the outer pressure ring 3;

[0085] S303: hoisting the third lower facade hoisting block to the outer end of the first temporary support 12, the third lower facade hoisting block is fixedly connected to the first temporary support 12 and the second lower facade hoisting block, hoisting the second upper facade hoisting block to the top of the second lower facade hoisting block, the two ends of the second upper facade hoisting block are respectively fixedly connected to the second lower facade hoisting block and the outer pressure ring 3, and the side surface of the second upper facade hoisting block is fixedly connected to the first upper facade hoisting block;

[0086] S304: hoisting the fourth lower facade hoisting block to the outer end of the first temporary support 12, the fourth lower facade hoisting block is fixedly connected to the first temporary support 12 and the third lower facade hoisting block, hoisting the third upper facade hoisting block to the top of the third lower facade hoisting block, the two ends of the third upper facade hoisting block are respectively fixedly connected to the third lower facade hoisting block and the outer pressure ring 3, and the side of the third upper facade hoisting block is fixedly connected to the second upper facade hoisting block;

[0087] S305: hoisting the fourth upper facade hoisting block to the top of the fourth lower facade hoisting block, the two ends of the fourth upper facade hoisting block are respectively fixedly connected to the fourth lower facade hoisting block and the outer pressure ring 3, and the side surface of the fourth upper facade hoisting block is fixedly connected to the third upper facade hoisting block;

[0088] S306: Repeat S301 to S305, hoist each facade patching section 11 between adjacent facade hoisting units 10, both sides of each facade patching section 11 are fixedly connected to the facade hoisting unit 10, each facade patching section 11 is fixedly connected to the outer pressure ring 3, and each first temporary support 12 is disassembled.

[0089] In actual application, the upper facade grid lifting block 17 and the lower facade grid lifting block 18 are both lifted by crawler cranes. The lifting capacity of the crawler crane is greater than the weight of a single upper facade grid lifting block 17 or a single lower facade grid lifting block 18. Four-point lifting is adopted when lifting the upper facade grid lifting block 17 and the lower facade grid lifting block 18. The specifications of the wire rope and the length of the wire rope and the fall chain are reasonably selected according to the lifting weight to avoid tilting or imbalance of the upper facade grid lifting block 17 and each lower facade grid lifting block 18 during the lifting process, thereby ensuring the stability of the entire lifting process.

[0090] The lower facade grid hoisting block 18 is fixedly connected to the first temporary support 12 to form a stable support structure, which provides safety guarantee for subsequent installation work. Then the upper facade grid hoisting block 17 is hoisted and fixed, and the construction process is smooth and safe.

[0091] The construction workers use a scissors lift to approach the high-altitude docking position between two adjacent facade grid lifting blocks, the high-altitude docking position between the upper facade grid lifting block 17 and the lower facade grid lifting block 18, and the high-altitude docking position between the upper facade grid lifting block 17 and the outer pressure ring 3 for welding operations. The scissors lift is fixedly connected to the stand pipe column 1 through a clamp structure to ensure the stability of the scissors lift during the lifting process. At the same time, a limit column is set at the bottom of the scissors lift to ensure that the bottom of the scissors lift is fixed below the welding point to improve the safety of the welding process.

[0092] The facade grid area 8 is further divided into eight facade hoisting units 10 and eight inlay segments, namely A1, B1, C1, D1, A2, B2, C2 and D2. Each facade hoisting unit 10 has four upper facade grid hoisting blocks 17 and four lower facade grid hoisting blocks 18. During construction, two teams are divided to synchronously construct the facade hoisting units 10 of A1A2, B1 B2, C1 C2 and D1 D2 in a clockwise manner. After completing the construction of each facade hoisting unit 10, the two construction teams synchronously complete the hoisting and fixing of the inlay segments.

[0093] Specifically, each of the first temporary supports 12 is an outer ring frame, and the top of each outer ring frame is fixedly connected with a connecting steel, which is used for welding and fixing with each lower facade grid lifting block 18.

[0094] In actual use, a connecting steel is welded on the top of each outer ring frame, and one of the cross-connection points of each lower facade grid hanging block 18 is welded to the connecting steel on the top of each outer ring frame, so that each lower facade grid hanging block 18 is fixedly connected to each outer ring frame.

[0095] Specifically, each second temporary support 13 is an inner ring tire frame, and the inner pressure ring 4 is welded to the top end of each inner ring tire frame.

[0096] In actual use, several inner ring tire frames are first set up in the inner ring area 7 to ensure that each inner ring tire frame is stable and does not shake. After the inner ring tire frames are set up, the inner pressure ring 4 is welded to the top of each inner ring tire frame section by section.

[0097] Specifically, in step S5, the roof grid area 9 is divided into a plurality of roof hoisting units 14 and a plurality of roof patching sections 15 along the annular direction, a plurality of third temporary supports 16 are set up in an annular shape in the circumferential direction of the roof grid area 9, each roof hoisting unit 14 is hoisted to the top of each third temporary support 16, and both ends of each roof grid unit are fixedly connected to the outer pressure ring 3 and the inner pressure ring 4, respectively, including:

[0098] Each roof hoisting unit 14 is further divided into a number of roof grid hoisting blocks 19, and each roof grid hoisting block 19 is hoisted to the top of each third temporary support 16, and each roof grid hoisting block 19 is fixedly connected to the third temporary support 16, and both ends of each roof grid hoisting block 19 are fixedly connected to the outer pressure ring 3 and the inner pressure ring 4.

[0099] In actual use, each roof hanging unit 14 is further divided into a plurality of roof grid hanging blocks 19 with the cross connection points of the steel grid 2 as nodes.

[0100] Specifically, when the roof hoisting unit 14 is divided, the weight of each roof grid hoisting block 19 can be kept consistent, which not only further reduces the weight and volume of a single hoisting, but also facilitates the use of a hoisting device of the same model or similar specifications to complete the hoisting work of the entire roof grid area 9, effectively controlling construction costs.

[0101] Before lifting, the specific lifting point is reasonably determined according to the shape and center of gravity of each roof grid lifting block 19. The principle of determining the lifting point is to prevent the roof grid lifting block 19 from tilting or unbalanced during the lifting process, so as to ensure the stability of the entire lifting process and ensure the safety of the lifting operation.

[0102] Specifically, the roof grid area 9 is divided into eight roof hoisting units 14 and eight roof patching sections 15, and each roof hoisting unit 14 is further divided into four roof grid hoisting blocks 19. The four roof grid hoisting blocks 19 are the first roof hoisting block, the second roof hoisting block, the third roof hoisting block and the fourth roof hoisting block. The hoisting of the roof grid area 9 specifically includes:

[0103] S501: hoisting the first roof hoisting block to the top of the third temporary support 16, the first roof hoisting block is fixedly connected to the third temporary support 16, and the two ends of the first roof hoisting block are respectively fixedly connected to the outer pressure ring 3 and the inner pressure ring 4;

[0104] S502: hoisting the second roof hoisting block to the top of the third temporary support 16, the second roof hoisting block is fixedly connected to the third temporary support 16 and the first roof hoisting block, and the two ends of the second roof hoisting block are respectively fixedly connected to the outer pressure ring 3 and the inner pressure ring 4;

[0105] S503: hoisting the third roof hoisting block to the top of the third temporary support 16, the third roof hoisting block is fixedly connected to the third temporary support 16 and the second roof hoisting block, and the two ends of the third roof hoisting block are fixedly connected to the outer pressure ring 3 and the inner pressure ring 4 respectively;

[0106] S504: hoisting the fourth roof hoisting block to the top of the third temporary support 16, the fourth roof hoisting block is fixedly connected to the third temporary support 16 and the third roof hoisting block, and the two ends of the fourth roof hoisting block are respectively fixedly connected to the outer pressure ring 3 and the inner pressure ring 4;

[0107] S505: Repeat S501 to S504, hoist each roof patching section 15 between adjacent roof hoisting units 14, both sides of each roof patching section 15 are fixedly connected to the roof hoisting unit 14, and both ends of each roof patching section 15 are fixedly connected to the outer pressure ring 3 and the inner pressure ring 4 respectively.

[0108] In actual application, each roof grid hoisting block 19 is hoisted by a crawler crane. The lifting weight of the crawler crane is greater than the weight of a single roof grid hoisting block 19. The hoisting of the roof grid hoisting block 19 adopts five-point hoisting. Because the span of the roof grid is large, a shoulder pole beam is required to assist the hoisting operation. The two ends of the bottom of the shoulder pole beam are respectively provided with a roof connection point. The three hoisting points on one side of the hoisting roof grid hoisting block 19 are connected to the roof connection point at one end through a steel wire rope, and the two hoisting points on the other side of the hoisting roof grid hoisting block 19 are connected to the roof connection point at one end through a steel wire rope. The wire rope is connected to the roof connection point at the other end. Lifting points are provided at both ends of the top of the shoulder pole beam. Each lifting point is connected to the hook of the crawler crane through a wire rope. The shoulder pole beam plays a role in distributing the load. It transfers the loads on different lifting points on the roof grid lifting blocks 19 to the hook of the crane evenly, and reasonably selects the specifications of the wire rope and the length of the wire rope and the fall chain according to the lifting weight to avoid tilting or imbalance of the roof grid lifting block 19 during the lifting process, thereby ensuring the stability of the entire lifting process.

[0109] The roof grid hoisting block 19 is hoisted to the top of the third temporary support 16 and fixedly connected to the third temporary support 16. The third temporary support 16 forms a stable supporting structure for each roof grid hoisting block 19, providing safety guarantee for the subsequent welding work of the roof grid hoisting block 19, and has high safety.

[0110] The construction workers use a scissors lift to approach the high-altitude docking position between two adjacent roof grid lifting blocks 19, the high-altitude docking position between the roof grid lifting block 19 and the outer pressure ring 3, and the high-altitude docking position between the roof grid lifting block 19 and the inner pressure ring 4 for welding operations. The scissors lift is fixedly connected to the stand pipe column 1 through a clamp structure to ensure the stability of the scissors lift during the lifting process. At the same time, a limit column is set at the bottom of the scissors lift to ensure that the bottom of the scissors lift is fixed below the welding point to improve the safety of the welding process.

[0111] The roof grid area 9 is further divided into eight roof hoisting units 14 and eight embedded sections, namely A1, B1, C1, D1, A2, B2, C2 and D2. Each roof hoisting unit 14 has four roof grid hoisting blocks 19. During construction, two teams are divided to synchronously construct the roof hoisting units 14 of A1A2, B1 B2, C1 C2 and D1 D2 in a clockwise manner. After completing the construction of each roof hoisting unit 14, the two construction teams synchronously complete the hoisting and fixing of the embedded sections.

[0112] Specifically, each third temporary support 16 is a middle ring frame, each roof grid hoisting block 19 and each roof patching section 15 are located on the top of each middle ring frame, and a clamping plate is fixedly connected to the top of each middle ring frame.

[0113] In actual use, vertically upward clamping plates are welded at both ends of the top of the middle ring tire frame, and the clamping plates are clamped at both ends of one of the cross-connection points of each roof grid lifting block 19, thereby limiting the horizontal displacement of each roof grid lifting block 1915, providing a stable temporary support for the roof grid lifting block 19, and ensuring the stability of the welding process.

[0114] Specifically, the spoke-type tension structure further includes a cable structure 5 (not shown in the figure), the cable structure 5 includes annular cables, radial cables, flying columns and inclined cables, a plurality of struts are connected to the lower part of the steel grid 2 at intervals, each strut is suspended downward, and each strut is arranged in a ring shape, and the installation method of the spoke-type tension structure further includes:

[0115] S6. Stretch and unfold the circumferential cables and radial cables, lift the circumferential cables and radial cables to a preset height, a plurality of circumferential cable clamps are arranged at intervals on the circumferential cables, each circumferential cable clamp is fixedly connected to each strut, one end of each radial cable is fixedly connected to each circumferential cable clamp, the other end of each radial cable is fixedly connected to the outer pressure ring 3, one end of the flying column is fixedly connected to one end of the radial cable connected to each circumferential cable clamp, the other end of the flying column is fixedly connected to the lower part of the steel grid 2, one end of the oblique cable is fixed on the circumferential cable, and one end of the oblique cable is anchored to the ground or the steel grid 2.

[0116] In actual use, the hoop cable is stretched on the ground, and hoop cable clamps are installed at intervals on the hoop cable. Each hoop cable clamp is a lifting point. A hydraulic jack is used as a lifting device. Under the joint action of multiple hydraulic jacks, the hoop cable is lifted to a preset height as a whole. Each hoop cable clamp is fixedly connected to each support rod to fix the hoop cable.

[0117] Then, the radial cables are spread out on the ground in stages and batches, and radial cable clamps are installed on the radial cables at intervals. The two ends of the radial cables are used as lifting points, and hydraulic jacks are used as lifting equipment. Under the action of the hydraulic jacks, each annular cable is lifted to a preset height, one end of each radial cable is fixedly connected to each annular cable clamp, and the other end of each radial cable is fixedly connected to the outer pressure ring 3, so as to fix each radial cable;

[0118] Install the fly column on the annular cable, and fix one end of the fly column to one end of the radial cable connected to each annular cable clamp by oblique pulling or jacking up the top of the fly column, and the other end of the fly column is fixedly connected to the lower part of the steel grid grid 2;

[0119] The inclined cable on the annular cable is installed, one end of the inclined cable is fixed on the inclined cable, and the other end is anchored on the ground or the steel grid 2, so that the installation of the cable structure 5 is completed.

[0120] In summary, an embodiment of the present invention provides a method for installing a steel grid structure, which divides the spoke-type tensioning structure into four areas: an outer ring, a facade grid, an inner ring, and a roof grid, and performs hoisting operations in different areas, thereby reducing the weight and volume of a single hoisting, reducing dependence on heavy lifting equipment, and effectively controlling construction costs. During the hoisting process, temporary supports are used to provide stable support for components in each area, ensuring that components in each area are accurately positioned to avoid safety hazards. For the facade grid area and the roof grid area, the present invention further divides the steel grid structure in these two areas into a plurality of independent hoisting units. Such a division not only further reduces the weight and volume of a single hoisting, but also facilitates the parallel operation of multiple construction units, significantly speeding up the overall construction progress. In addition, a patching section is reserved between each lifting unit. The patching section is installed after each lifting unit is in place. Slight position deviations are inevitable in the process of installing the lifting unit. Construction personnel can ensure the tightness and smoothness of the connection between adjacent components of the steel grid structure by adjusting the size or inclination angle of the patching section. While improving the construction efficiency, it avoids the common problems of splicing misalignment or irregular gaps between adjacent components in traditional splicing methods, thereby improving the installation quality and accuracy of the rigid roof structure. The installation method of the steel grid structure provided in this application not only optimizes the construction process, but also significantly improves the construction efficiency while taking into account the construction quality.

[0121] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A method for installing a steel roof structure, characterized in that: The steel roof structure is a spoke-type tension structure, which comprises a grandstand pipe column (1), a steel grid (2), an outer pressure ring (3), and an inner pressure ring (4). The grandstand pipe column (1) is provided with a plurality of them in a circumferential direction, and the plurality of the grandstand pipe columns (1) are fixed to the ground in an annular manner at intervals. The outer pressure ring (3) is arranged on the top of the plurality of the grandstand pipe columns (1) arranged in an annular manner, and the inner pressure ring (4) is arranged on the inner side of the outer pressure ring (3). The steel grid (2) connects the outer pressure ring (3) and the inner pressure ring (4); The installation method of the spoke-type tension structure comprises the following steps: S1. Divide the construction area, set the outer pressure ring (3) and the stand pipe column (1) at the bottom thereof as the outer ring area (6), and set the inner pressure ring (4) as the inner ring area (7); set the steel grid (2) located outside the outer pressure ring (3) as the facade grid area (8), and set the steel grid (2) located inside the outer pressure ring (3) as the roof grid area (9); S2, hoisting and fixing each of the stand pipe columns (1) in the outer ring area (6), and fixing the outer pressure ring (3) on the top of each of the stand pipe columns (1); S3, dividing the facade grid area (8) into a plurality of facade hanging units (10) arranged in a ring shape and a plurality of facade patching sections (11) arranged in a ring shape, installing a plurality of first temporary supports (12) arranged in a ring shape on the outer peripheral surface of the facade grid area (8), hanging each of the facade hanging units (10) to the top of each of the first temporary supports (12), each of the facade hanging units (10) is fixedly connected to each of the first temporary supports (12), each of the facade grid units is fixedly connected to the outer pressure ring (3), hanging each of the facade patching sections (11) between two adjacent facade hanging units (10), fixing each of the facade patching sections (11) to the outer pressure ring (3), and removing each of the first temporary supports (12); S4, erecting a plurality of second temporary supports (13) in a ring shape in the circumferential direction of the inner ring region (7), and fixing the inner pressure ring (4) on the top of each second temporary support (13); S5. The roof grid area (9) is divided into a plurality of roof hanging units (14) arranged in a ring shape and a plurality of roof patching sections (15) arranged in a ring shape. A plurality of third temporary supports (16) are erected in a ring shape around the roof grid area (9). Each of the roof hanging units (14) is hoisted to the top of each of the third temporary supports (16). Each of the roof hanging units (14) is arranged in the space between the outer pressure ring (3) and the inner pressure ring (4). The two ends of each of the roof hanging units (14) are respectively fixedly connected to the outer pressure ring (3) and the inner pressure ring (4). Each of the roof patching sections (15) is hoisted between two adjacent roof hanging units (14). The two ends of each of the roof patching sections (15) are respectively fixedly connected to the outer pressure ring (3) and the inner pressure ring (4).

2. The method for installing a steel roof structure according to claim 1, characterized in that: In step S1, the division of the construction area specifically includes: setting a plurality of facade grid assembly sites on the periphery of the facade grid area (8), and completing the assembly of each of the facade hoisting units (10) at the facade grid assembly sites; A plurality of roof grid assembly sites are arranged around the roof grid area (9), and the assembly of each of the roof hanging units (14) is completed at the roof grid assembly sites.

3. The method for installing a steel roof structure according to claim 1, characterized in that: In step S3, each of the facade hoisting units (10) is hoisted to the top of each of the first temporary supports (12), each of the facade hoisting units (10) is fixedly connected to each of the first temporary supports (12), and each of the facade grid units is fixedly connected to the outer pressure ring (3), including: Each of the facade hoisting units (10) is further divided into a plurality of upper facade grid hoisting blocks (17) and a plurality of lower facade grid hoisting blocks (18); each of the upper facade grid hoisting blocks (17) is hoisted to the outer end of each of the first temporary supports (12); each of the upper facade grid hoisting blocks (17) is fixedly connected to each of the first temporary supports (12); each of the lower facade grid hoisting blocks (18) is hoisted to the top of each of the upper facade grid hoisting blocks (17); and both ends of each of the lower facade grids are fixedly connected to each of the upper facade grid hoisting blocks (17) and the outer pressure ring (3).

4. The method for installing a steel roof structure according to claim 3, characterized in that: The facade grid area (8) is divided into eight facade hanging units (10) and eight facade inlay sections (11), and each of the facade hanging units (10) is further divided into four upper facade grid hanging blocks (17) and four lower facade grid hanging blocks (18), the four upper facade grid hanging blocks (17) are sequentially a first upper facade hanging block, a second upper facade hanging block, a third upper facade hanging block and a fourth upper facade hanging block, and the four lower facade grid hanging blocks (18) are sequentially a first lower facade hanging block, a second lower facade hanging block, a third lower facade hanging block and a fourth lower facade hanging block corresponding to each upper facade grid hanging block (17), and the hanging of the facade grid area (8) specifically includes: S301: hoisting the first lower facade hoisting block to the outer end of the first temporary support (12), the first lower facade hoisting block being fixedly connected to the first temporary support (12), hoisting the second lower facade hoisting block to the outer end of the first temporary support (12), the second lower facade hoisting block being fixedly connected to the first temporary support (12) and the first lower facade hoisting block; S302: hoisting the first upper facade hoisting block to the top of the first lower facade hoisting block, wherein the two ends of the first upper facade hoisting block are respectively fixedly connected to the first lower facade hoisting block and the outer pressure ring (3); S303: hoisting the third lower facade hoisting block to the outer end of the first temporary support (12), the third lower facade hoisting block being fixedly connected to the first temporary support (12) and the second lower facade hoisting block, hoisting the second upper facade hoisting block to the top of the second lower facade hoisting block, the two ends of the second upper facade hoisting block being fixedly connected to the second lower facade hoisting block and the outer pressure ring (3) respectively, and the side surface of the second upper facade hoisting block being fixedly connected to the first upper facade hoisting block; S304: hoisting the fourth lower facade hoisting block to the outer end of the first temporary support (12), the fourth lower facade hoisting block is fixedly connected to the first temporary support (12) and the third lower facade hoisting block, hoisting the third upper facade hoisting block to the top of the third lower facade hoisting block, the two ends of the third upper facade hoisting block are respectively fixedly connected to the third lower facade hoisting block and the outer pressure ring (3), and the side surface of the third upper facade hoisting block is fixedly connected to the second upper facade hoisting block; S305: hoisting the fourth upper facade hoisting block to the top of the fourth lower facade hoisting block, the two ends of the fourth upper facade hoisting block are respectively fixedly connected to the fourth lower facade hoisting block and the outer pressure ring (3), and the side surface of the fourth upper facade hoisting block is fixedly connected to the third upper facade hoisting block; S306: Repeat S301 to S305, hoist each facade patch section (11) between adjacent facade hoisting units (10), both sides of each facade patch section (11) are fixedly connected to the facade hoisting unit (10), each facade patch section (11) is fixedly connected to the outer pressure ring (3), and each first temporary support (12) is disassembled.

5. The method for installing a steel roof structure according to claim 3 or 4, characterized in that: Each of the first temporary supports (12) is an outer ring frame, and the top of each of the outer ring frames is fixedly connected with a connecting steel, and the connecting steel is used to be welded and fixed to each of the lower facade grid hanging blocks (18).

6. A method for installing a steel roof structure according to any one of claims 1 to 4, characterized in that: Each of the second temporary supports (13) is an inner ring tire frame, and the inner pressure ring (4) is welded to the top end of each of the inner ring tire frames.

7. The method for installing a steel roof structure according to claim 1, characterized in that: In step S5, the roof grid area (9) is divided into a plurality of roof hanging units (14) and a plurality of roof patching sections (15) along a circular direction, a plurality of third temporary supports (16) are set up in a circular shape around the roof grid area (9), each of the roof hanging units (14) is hoisted to the top of each of the third temporary supports (16), and both ends of each of the roof grid units are fixedly connected to the outer pressure ring (3) and the inner pressure ring (4), respectively, including: Each of the roof hoisting units (14) is further divided into a plurality of roof grid hoisting blocks (19), and each of the roof grid hoisting blocks (19) is hoisted to the top of each of the third temporary supports (16), each of the roof grid hoisting blocks (19) is fixedly connected to the third temporary supports (16), and two ends of each of the roof grid hoisting blocks (19) are fixedly connected to the outer pressure ring (3) and the inner pressure ring (4).

8. The method for installing a steel roof structure according to claim 7, characterized in that: The roof grid area (9) is divided into eight roof hanging units (14) and eight roof patching sections (15), each of the roof hanging units (14) is further divided into four roof grid hanging blocks (19), the four roof grid hanging blocks (19) are sequentially a first roof hanging block, a second roof hanging block, a third roof hanging block and a fourth roof hanging block, and the hanging of the roof grid area (9) specifically includes: S501: hoisting the first roof hoisting block to the top of the third temporary support (16), wherein the first roof hoisting block is fixedly connected to the third temporary support (16), and the two ends of the first roof hoisting block are respectively fixedly connected to the outer pressure ring (3) and the inner pressure ring (4); S502: hoisting the second roof hoisting block to the top of the third temporary support (16), the second roof hoisting block being fixedly connected to the third temporary support (16) and the first roof hoisting block, and the two ends of the second roof hoisting block being fixedly connected to the outer pressure ring (3) and the inner pressure ring (4) respectively; S503: hoisting the third roof hoisting block to the top of the third temporary support (16), wherein the third roof hoisting block is fixedly connected to the third temporary support (16) and the second roof hoisting block, and the two ends of the third roof hoisting block are respectively fixedly connected to the outer pressure ring (3) and the inner pressure ring (4); S504: hoisting the fourth roof hoisting block to the top of the third temporary support (16), the fourth roof hoisting block being fixedly connected to the third temporary support (16) and the third roof hoisting block, and the two ends of the fourth roof hoisting block being fixedly connected to the outer pressure ring (3) and the inner pressure ring (4) respectively; S505: Repeat S501 to S504, and hoist each roof patch section (15) between adjacent roof hoisting units (14), both sides of each roof patch section (15) are fixedly connected to the roof hoisting unit (14), and both ends of each roof patch section (15) are fixedly connected to the outer pressure ring (3) and the inner pressure ring (4), respectively.

9. The method for installing a steel roof structure according to claim 7 or 8, characterized in that: Each of the third temporary supports (16) is a middle ring frame, each of the roof grid lifting blocks (19) and each of the roof patching sections (15) are located at the top of each of the middle ring frames, and a clamping plate is fixedly connected to the top of each of the middle ring frames.

10. The method for installing a steel roof structure according to claim 1, characterized in that: The spoke-type tension structure further comprises a cable structure (5), wherein the cable structure (5) comprises an annular cable, a radial cable, a flying column and an inclined cable, a plurality of struts are connected to the lower part of the steel grid (2) at intervals, each of the struts is suspended downward, and each of the struts is arranged in a ring shape, and the installation method of the spoke-type tension structure further comprises: S6, stretching and unfolding the annular cable and the radial cable, lifting the annular cable and the radial cable to a preset height, a plurality of annular cable clamps are arranged at intervals on the annular cable, each annular cable clamp is fixedly connected to each strut, one end of each radial cable is fixedly connected to each annular cable clamp, the other end of each radial cable is fixedly connected to the outer pressure ring (3), one end of the flying column is fixedly connected to one end of the radial cable connected to each annular cable clamp, the other end of the flying column is fixedly connected to the lower part of the steel grid (2), one end of the inclined cable is fixed to the annular cable, and one end of the inclined cable is anchored to the ground or the steel grid (2).

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