Awning steel structure system and construction method thereof

Abstract

The invention discloses an awning steel structure system and a construction method thereof, and relates to the technical field of awning steel structures. The strength of the steel structure system is improved. Comprising a steel structure connecting frame, the steel structure connecting frame is used for building an awning main body part, and the steel structure connecting frame is connected with internal concrete through a pull rod. The first drainage ditch and the second drainage ditch are used for quickening drainage in rainy days, so that rainwater is prevented from falling in a straight waterfall mode, the rain shed is arranged as a rain shielding mechanism, a small amount of rainwater can be effectively blocked when falling from the edge of the second aluminum veneer decorative roof, and the service life of the aluminum veneer decorative roof is prolonged. The aluminum alloy latticed shell is arranged to serve as a framework for laying the colorful aluminum composite board decorative curtain wall, the colorful aluminum composite board decorative curtain wall and the steel structure connecting frame can be fixed conveniently, and when internal concrete needs to be built in the steel structure connecting frame, the steel structure connecting frame and the internal concrete are connected through the pull rod, so that the internal concrete can be conveniently built; therefore, the stability of the steel structure armature is improved.

Description

Technical Field

[0001] The invention relates to the technical field of canopy steel structures, and in particular to a canopy steel structure system and a construction method thereof. Background Art

[0002] In the prior art, with the development of social and economic diversification, more and more canopy steel structure roofs are used for oval sports stadium buildings, especially curved cantilever canopy steel structures. The canopy steel structure usually includes a plurality of arc columns arranged on the outer ring of the canopy, radial cantilever trusses connected to the arc columns, and annular brackets arranged on the inner ring of the canopy. The annular trusses are connected between the plurality of radial cantilever trusses, and the inner side of the canopy is cast to form a stand. At present, the construction methods of canopy steel structures mainly include hoisting method, block installation method, etc. During the construction of the existing canopy steel structure, due to unreasonable planning and non-standard construction process, the canopy steel structure is prone to quality problems such as insufficient strength, resulting in the collapse of the canopy steel structure, which poses a great safety hazard; In summary, the present application proposes a canopy steel structure system and a construction method thereof, which can effectively ensure the installation strength of the canopy steel structure system during and after construction, and improve the safety of its use. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a canopy steel structure system and a construction method thereof.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A canopy steel structure system includes a steel structure frame, which is connected to internal concrete through a tension rod. A covering is installed on the periphery of the steel structure frame, and the covering includes a glass skylight and an aluminum single plate decorative roof. The glass skylight is laid at the center of the top of the steel structure frame, and the aluminum single plate decorative roof is laid in a surrounding manner on the outer circle of the glass skylight.

[0005] Preferably: an aluminum alloy grid shell is laid on the side of the steel structure frame, and a colorful aluminum composite panel decorative curtain wall is laid on the outside of the aluminum alloy grid shell, and a canopy is laid on the outer circle of the colorful aluminum composite panel decorative curtain wall, and an aluminum single panel decorative roof is laid in the area between the colorful aluminum composite panel decorative curtain wall and the aluminum single panel decorative roof.

[0006] Further: a drainage ditch 1 is provided at the connection between the glass skylight and the aluminum veneer decorative roof, and at the connection between the aluminum veneer decorative roof and the second aluminum veneer decorative roof, and a drainage ditch 2 is provided at the connection between the second aluminum veneer decorative roof and the colorful aluminum composite panel decorative curtain wall.

[0007] Furthermore: the steel structure frame is connected by a plurality of steel structure units, the steel structure units include node members fixed on a concrete base, and steel beam assemblies are installed on the node members.

[0008] As a preferred solution of the present invention: the node member includes a steel column and a card plate, the steel column and the concrete base are fixed by casting, and the card plate is fixed to the top outer wall of the steel column, and the side wall of the card plate is installed with a tree-like member.

[0009] As a further solution of the present invention: the tree-like member includes a connecting steel pipe and a plug plate, the plug plate is movably connected to the inner wall of the card plate, the connecting steel pipe and the plug plate are welded and fixed, and a positioning plate is inserted into a through hole opened on the surface of the plug plate.

[0010] As a further solution of the present invention: the steel beam assembly includes a cantilever steel beam and a tie round tube, the two cantilever steel beams are welded and fixed by multiple groups of tie round tubes, and the thickness in the middle of the cantilever steel beam is greater than the thickness at both ends of the cantilever steel beam, two groups of reinforcing round tubes are welded between two adjacent tie round tubes, and the two reinforcing round tubes are cross-welded and fixed, and the connecting steel tube and the cantilever steel beam are welded and fixed.

[0011] On the basis of the above-mentioned scheme: a fixing plate is fixed to the outer wall of one side of the steel column, and the two fixing plates are fixed by welding through lateral steel pipes, and the lateral steel pipe and the cantilever steel beam are fixed by welding.

[0012] A construction method for a canopy steel structure system comprises the following steps: S1: First, carry out planning work before the construction of the canopy steel structure system; S2: Carry out the construction of internal concrete. After the construction is completed, the formwork is installed on the internal concrete. After the pallet and the steel column are fixed, the two sets of tree-like members are respectively inserted along the two sides of the pallet. Then, the positioning plate is used to position the insertion plate and the pallet. Then, concrete is poured into the formwork to complete the fixation of the node member of one of the steel structure units on the steel structure frame. S3: Weld and fix the cantilever steel beam and the connecting steel pipe, and use the connecting steel pipe to support the cantilever steel beam; S4: After fixing the fixing plate and the clamping plate, weld and fix the lateral steel pipe and the fixing plate, and then weld and fix the lateral steel pipe and the cantilever steel beam to complete the construction of a steel structure unit; S5: The remaining steel structure units are constructed in the same way, and two adjacent steel structure units are fixed by welding with tie-round tubes to complete the overall construction of the steel structure frame; S6: Then, a glass skylight and an aluminum veneer decorative roof are laid on the top of the completed steel structure frame, and a drainage ditch is opened in the interval area between the glass skylight and the aluminum veneer decorative roof; S7: Then, the second aluminum veneer decorative roof is laid on the curved surface area at the top of the steel structure frame, and the first drainage ditch is also opened in the area between the second aluminum veneer decorative roof and the aluminum veneer decorative roof; S8: Lay the aluminum alloy grid shell on the side wall of the steel structure frame, then install the colorful aluminum composite panel decorative curtain wall on the aluminum alloy grid shell, and after installation, install the canopy on the outer ring of the colorful aluminum composite panel decorative curtain wall; S9: Finally, the internal concrete and the steel structure frame are connected and fixed by tension rods.

[0013] Based on the above scheme: the planning work in step S1 includes the following steps: S11: Evaluate the rationality and safety of the canopy's own structural system, and design the inter-column support, roof horizontal support, and lower end connection measures of the steel structure; S12: Calculate and test the connection measures between the steel beams and the node members to avoid the steel beams and the node members forming a geometrically variable system; S13: Use 3D3S modeling to analyze and verify the bearing capacity and stability of the steel structure system to prevent its bearing limit from exceeding the limit of the specification; S14: During welding, the standards for weld length and thickness are set to ensure the welding strength between steel structure units. The welding method and welding equipment for the upper chord, web and lower chord connection welds of the steel structure units are selected. For areas where welding is weak and prone to rust, the thickness of the steel structure needs to be increased and anti-rust agent needs to be sprayed after welding.

[0014] The beneficial effects of the present invention are: A canopy steel structure system and a construction method thereof utilize a first drainage ditch and a second drainage ditch to accelerate drainage in rainy weather, thereby preventing rainwater from falling in a straight waterfall manner. By providing a canopy as a rain shielding mechanism, a small amount of rainwater can be effectively blocked when it falls from the second edge of an aluminum single plate decorative roof.

[0015] A canopy steel structure system and a construction method thereof are provided, wherein an aluminum alloy lattice shell is provided as a skeleton for laying a colorful aluminum composite panel decorative curtain wall, so that the colorful aluminum composite panel decorative curtain wall and a steel structure frame are conveniently fixed. When internal concrete needs to be built inside the steel structure frame, a pull rod is used to connect the steel structure frame and the internal concrete, thereby improving the stability of the steel structure frame and effectively enhancing its overall load-bearing capacity.

[0016] A canopy steel structure system and a construction method thereof are provided, wherein a plug-in connection is arranged between a plug-in plate and a clamping plate for installation, thereby flexibly adjusting according to the actual installation quantity of connecting steel pipes.

[0017] A canopy steel structure system and a construction method thereof are provided. The thickness of the middle portion of a cantilever steel beam is set to be greater than that of both ends, thereby providing sufficient strength support for the portion of the cantilever steel beam that transitions from the vertical direction to the horizontal direction, thereby improving its ability to withstand pressure. The cantilever steel beam is supported by connecting steel pipes, and a plurality of tie-circular tubes are cross-fixed to improve the connection strength between two cantilever steel beams.

[0018] A canopy steel structure system and a construction method thereof can play a stretching role on the tail of a cantilever steel beam by arranging a lateral steel pipe, so that the tail of the cantilever steel beam is subjected to the tensile force applied by the lateral steel pipe, thereby improving the pressure bearing capacity of the head of the cantilever steel beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings: Figure 1 It is a schematic diagram of the overall structure of a canopy of a canopy steel structure system proposed by the present invention; Figure 2 It is a schematic diagram of a steel structure frame structure of a canopy steel structure system proposed by the present invention; Figure 3 It is a schematic diagram of a partial structure of a steel structure of a canopy steel structure system proposed by the present invention; Figure 4 It is a schematic diagram of a steel structure unit structure of a canopy steel structure system proposed by the present invention; Figure 5 It is a schematic diagram of the bottom structure of a steel structure unit of a canopy steel structure system proposed by the present invention; Figure 6 It is a schematic diagram of the structure of the base part of a canopy steel structure system proposed by the present invention; Figure 7 It is a schematic diagram of the lateral support structure of a canopy steel structure system proposed by the present invention; Figure 8 The present invention provides a schematic diagram of the node member installation structure of the canopy steel structure system.

[0020] In the figure: glass skylight 1; drainage ditch 1 2; aluminum veneer decorative roof 3; aluminum veneer decorative roof 2 4; drainage ditch 2 5; canopy 6; steel structure frame 7; colorful aluminum composite panel decorative curtain wall 8; tie rod 9; aluminum alloy grid shell 10; concrete base 11; cantilever steel beam 12; tie round tube 13; reinforcement round tube 14; connecting steel pipe 15; lateral steel pipe 16; steel column 17; positioning plate 18; fixing plate 19; plug plate 20; clamping plate 21. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0025] In addition, the term "plurality" shall mean two or more.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Example

[0027] A canopy steel structure system, such as Figures 1 to 8As shown, it includes a steel structure frame 7, which is used to build the main part of the canopy, and the steel structure frame 7 is connected to the internal concrete through a tie rod 9. A covering is installed on the periphery of the steel structure frame 7, and the covering includes a glass skylight 1 and an aluminum single plate decorative roof 3. The glass skylight 1 is laid at the center of the top of the steel structure frame 7, and the aluminum single plate decorative roof 3 is laid around the outer circle of the glass skylight 1. The side of the steel structure frame 7 is laid with an aluminum alloy grid shell 10, and the aluminum alloy grid shell 1 0 The exterior is paved with a colorful aluminum composite panel decorative curtain wall 8, and the outer circle of the colorful aluminum composite panel decorative curtain wall 8 is paved with a canopy 6, the area between the colorful aluminum composite panel decorative curtain wall 8 and the aluminum veneer decorative roof 3 is paved with an aluminum veneer decorative roof 2 4, the connection between the glass skylight 1 and the aluminum veneer decorative roof 3, the connection between the aluminum veneer decorative roof 3 and the aluminum veneer decorative roof 2 4 is provided with a drainage ditch 1 2, and the connection between the aluminum veneer decorative roof 2 4 and the colorful aluminum composite panel decorative curtain wall 8 is provided with a drainage ditch 2 5; The steel structure frame 7 serves as the skeleton of the entire system, thereby providing support for the subsequent laying of covering parts. The glass skylight 1, the aluminum veneer decorative roof 3 and the aluminum veneer decorative roof 2 4 cover and decorate the top of the steel structure frame 7. The connection between the three is provided with a drainage ditch 1 2 and a drainage ditch 2 5. The drainage ditch 1 2 and the drainage ditch 2 5 are used to accelerate the drainage in rainy weather, thereby preventing the rain from falling in a straight waterfall. By providing an aluminum alloy mesh shell 10 as the skeleton for laying the colorful aluminum composite panel decorative curtain wall 8, it is convenient to fix the colorful aluminum composite panel decorative curtain wall 8 and the steel structure frame 7. When it is necessary to construct internal concrete inside the steel structure frame 7, the pull rod 9 is used to connect the steel structure frame 7 and the internal concrete, thereby improving the stability of the steel structure frame 7 and effectively strengthening its overall load-bearing capacity. By providing a canopy 6 as a rainproof mechanism, a small amount of rainwater can be effectively blocked when it falls from the edge of the aluminum veneer decorative roof 2 4.

[0028] The steel structure frame 7 is connected by a plurality of steel structure units, the steel structure unit includes a node member fixed on a concrete base 11, and a steel beam assembly is installed on the node member, the node member includes a steel column 17 and a card plate 21, the steel column 17 and the concrete base 11 are fixed by casting, and the card plate 21 is fixed to the top outer wall of the steel column 17 by bolts, and a tree-like member is installed on the side wall of the card plate 21, and the tree-like member includes a connecting steel pipe 15 and a plug plate 20, the plug plate 20 is slidably connected to the inner wall of the card plate 21, and the connecting steel pipe 15 and the plug plate 20 are welded and fixed, and a positioning plate 18 is inserted into a through hole opened on the surface of the plug plate 20; In this embodiment, the concrete base 11 is preferably installed on the internal concrete. During construction, the steel column 17 is placed inside the template using a concrete template, and after the clamping plate 21 and the steel column 17 are fixed, the two groups of tree-like members are respectively inserted along the two sides of the clamping plate 21, and then the positioning plate 18 is used to position the plug plate 20 and the clamping plate 21, and then concrete is poured into the template to complete the fixation of the node member. In this embodiment, the plug plate 20 and the clamping plate 21 are installed in a plug-in manner, so as to facilitate flexible adjustment according to the actual installation number of the connecting steel pipes 15. In this embodiment, the number of connecting steel pipes 15 on each plug plate 20 is two groups, and the connecting steel pipes 15 are used to support the steel beam assembly.

[0029] The steel beam assembly includes a cantilever steel beam 12 and a tie round tube 13. The two cantilever steel beams 12 are welded and fixed by multiple groups of tie round tubes 13. The thickness of the middle part of the cantilever steel beam 12 is greater than the thickness of the two ends of the cantilever steel beam 12. Two groups of reinforcing round tubes 14 are welded between two adjacent tie round tubes 13. The two reinforcing round tubes 14 are cross-welded and fixed, and the connecting steel tube 15 and the cantilever steel beam 12 are welded and fixed. By setting the thickness of the middle part of the cantilever steel beam 12 to be greater than that of the two ends, the part of the cantilever steel beam 12 that transitions from the vertical direction to the horizontal direction is supported with sufficient strength, thereby improving its ability to withstand pressure. The cantilever steel beam 12 is supported by providing a connecting steel pipe 15, and a plurality of tie circular tubes 13 are cross-fixed to each other, thereby improving the connection strength between the two cantilever steel beams 12.

[0030] A fixing plate 19 is fixed to the outer wall of one side of the steel column 17 by bolts, and the two fixing plates 19 are fixed by welding through a lateral steel pipe 16, and the lateral steel pipe 16 and the cantilever steel beam 12 are fixed by welding; The lateral steel pipe 16 can be provided to stretch the tail of the cantilever steel beam 12 , so that the tail of the cantilever steel beam 12 is subjected to the tensile force applied by the lateral steel pipe 16 , thereby improving the pressure bearing capacity of the head of the cantilever steel beam 12 . Example

[0031] A construction method for a canopy steel structure system comprises the following steps: S1: First, carry out planning work before the construction of the canopy steel structure system; S2: Carry out the construction of internal concrete. After the construction is completed, the template is installed on the internal concrete. After the clamping plate 21 and the steel column 17 are fixed, the two sets of tree-like members are respectively inserted along the two sides of the clamping plate 21. Then, the positioning plate 18 is used to position the insertion plate 20 and the clamping plate 21. Then, concrete is poured into the template to complete the fixing of the node member of one of the steel structure units on the steel structure bracket 7. S3: Weld and fix the cantilever steel beam 12 and the connecting steel pipe 15, and use the connecting steel pipe 15 to support the cantilever steel beam 12; S4: After fixing the fixing plate 19 and the clamping plate 21, the lateral steel pipe 16 and the fixing plate 19 are welded and fixed, and then the lateral steel pipe 16 and the cantilever steel beam 12 are welded and fixed to complete the construction of a steel structure unit; S5: The remaining steel structure units are constructed in the same manner, and two adjacent steel structure units are welded and fixed by tie-joint circular tubes 13 to complete the overall construction of the steel structure frame 7; S6: Then, a glass skylight 1 and an aluminum veneer decorative roof 3 are laid on the top of the built steel structure frame 7, and a drainage ditch 2 is opened in the interval area between the glass skylight 1 and the aluminum veneer decorative roof 3; S7: Then, an aluminum veneer decorative roof 2 4 is laid on the curved surface area at the top of the steel structure frame 7, and a drainage ditch 1 2 is also opened in the area between the aluminum veneer decorative roof 2 4 and the aluminum veneer decorative roof 3; S8: laying an aluminum alloy lattice shell 10 on the side wall of the steel structure frame 7, then installing a colorful aluminum composite panel decorative curtain wall 8 on the aluminum alloy lattice shell 10, and after installation, installing a canopy 6 on the outer ring of the colorful aluminum composite panel decorative curtain wall 8; S9: Finally, the internal concrete and the steel structure frame 7 are connected and fixed by the tie rod 9; The planning work in step S1 includes the following steps: S11: Evaluate the rationality and safety of the canopy's own structural system, and design the inter-column support, roof horizontal support, and lower end connection measures of the steel structure; S12: Calculate and test the connection measures between the steel beams and the node members to avoid the steel beams and the node members forming a geometrically variable system; S13: Use 3D3S modeling to analyze and verify the bearing capacity and stability of the steel structure system to prevent its bearing limit from exceeding the limit of the specification; S14: During welding, the standards for weld length and thickness are set to ensure the welding strength between steel structure units. The welding method and welding equipment for the upper chord, web and lower chord connection welds of the steel structure units are selected. For areas where welding is weak and prone to rust, the thickness of the steel structure needs to be increased and anti-rust agent needs to be sprayed after welding.

[0032] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A canopy steel structure system, comprising a steel structure frame (7), characterized in that: The steel structure frame (7) is connected to the internal concrete via a tension rod (9), and a covering is installed on the periphery of the steel structure frame (7), wherein the covering comprises a glass skylight (1) and an aluminum single plate decorative roof (3), wherein the glass skylight (1) is laid at the center of the top of the steel structure frame (7), and the aluminum single plate decorative roof (3) is laid in a surrounding manner on the outer circle of the glass skylight (1).

2. A canopy steel structure system according to claim 1, characterized in that: The side of the steel structure frame (7) is paved with an aluminum alloy lattice shell (10), and the outside of the aluminum alloy lattice shell (10) is paved with a colorful aluminum composite panel decorative curtain wall (8), and the outer ring of the colorful aluminum composite panel decorative curtain wall (8) is paved with a canopy (6), and the area between the colorful aluminum composite panel decorative curtain wall (8) and the aluminum single panel decorative roof (3) is paved with an aluminum single panel decorative roof second (4).

3. A canopy steel structure system according to claim 2, characterized in that: A first drainage ditch (2) is provided at the connection between the glass skylight (1) and the aluminum veneer decorative roof (3), and at the connection between the aluminum veneer decorative roof (3) and the second aluminum veneer decorative roof (4), and a second drainage ditch (5) is provided at the connection between the second aluminum veneer decorative roof (4) and the colorful aluminum composite panel decorative curtain wall (8).

4. A canopy steel structure system according to claim 3, characterized in that: The steel structure frame (7) is connected by a plurality of steel structure units, wherein the steel structure units include node members fixed on a concrete base (11), and steel beam components are installed on the node members.

5. A canopy steel structure system according to claim 4, characterized in that: The node member comprises a steel column (17) and a clip (21); the steel column (17) and the concrete base (11) are fixed by casting, the clip (21) is fixed to the top outer wall of the steel column (17), and a tree-like member is installed on the side wall of the clip (21).

6. The canopy steel structure system according to claim 5, characterized in that: The tree-like member comprises a connecting steel pipe (15) and a plug plate (20), wherein the plug plate (20) is movably connected to the inner wall of the clamping plate (21), the connecting steel pipe (15) and the plug plate (20) are welded and fixed, and a positioning plate (18) is inserted into a through hole provided on the surface of the plug plate (20).

7. The canopy steel structure system according to claim 6, characterized in that: The steel beam assembly comprises a cantilever steel beam (12) and a tie round tube (13), wherein two cantilever steel beams (12) are welded and fixed via a plurality of groups of tie round tubes (13), and the thickness of the cantilever steel beam (12) in the middle is greater than the thickness at both ends of the cantilever steel beam (12), two groups of reinforcing round tubes (14) are welded between two adjacent tie round tubes (13), and the two reinforcing round tubes (14) are cross-welded and fixed, and the connecting steel tube (15) and the cantilever steel beam (12) are welded and fixed.

8. The canopy steel structure system according to claim 7, characterized in that: A fixing plate (19) is fixed to the outer wall of one side of the steel column (17), and the two fixing plates (19) are fixed by welding via a lateral steel pipe (16), and the lateral steel pipe (16) and the cantilever steel beam (12) are fixed by welding.

9. A construction method of a canopy steel structure system according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: First, carry out planning work before the construction of the canopy steel structure system; S2: Constructing the internal concrete, after which the formwork is installed on the internal concrete, fixing the clamping plate (21) and the steel column (17), inserting the two sets of tree-like members along the two sides of the clamping plate (21), and then using the positioning plate (18) to position the insertion plate (20) and the clamping plate (21), and then pouring concrete into the formwork to complete the fixing of the node member of one of the steel structure units on the steel structure bracket (7); S3: welding and fixing the cantilever steel beam (12) and the connecting steel pipe (15), and using the connecting steel pipe (15) to support the cantilever steel beam (12); S4: After the fixing plate (19) and the clamping plate (21) are fixed, the lateral steel pipe (16) and the fixing plate (19) are welded and fixed, and then the lateral steel pipe (16) and the cantilever steel beam (12) are welded and fixed, thereby completing the construction of a steel structure unit; S5: The remaining steel structure units are constructed in the same manner, and two adjacent steel structure units are fixed by welding through tie-ring round tubes (13), thereby completing the overall construction of the steel structure bracket (7); S6: Then, a glass skylight (1) and an aluminum veneer decorative roof (3) are laid on the top of the completed steel structure frame (7), and a drainage ditch (2) is opened in the interval area between the glass skylight (1) and the aluminum veneer decorative roof (3); S7: Then, the second aluminum veneer decorative roof (4) is laid on the curved surface area at the top of the steel structure frame (7), and the first drainage ditch (2) is also opened in the area between the second aluminum veneer decorative roof (4) and the aluminum veneer decorative roof (3); S8: laying an aluminum alloy lattice shell (10) on the side wall of the steel structure frame (7), then installing a colorful aluminum composite panel decorative curtain wall (8) on the aluminum alloy lattice shell (10), and after installation, installing a canopy (6) on the outer ring of the colorful aluminum composite panel decorative curtain wall (8); S9: Finally, the internal concrete and the steel structure frame (7) are connected and fixed by the tie rod (9).

10. The construction method of a canopy steel structure system according to claim 9, characterized in that: The planning work in step S1 includes the following steps: S11: Evaluate the rationality and safety of the canopy's own structural system, and design the inter-column support, roof horizontal support, and lower end connection measures of the steel structure; S12: Calculate and test the connection measures between the steel beams and the node members to avoid the steel beams and the node members forming a geometrically variable system; S13: Use 3D3S modeling to analyze and verify the bearing capacity and stability of the steel structure system to prevent its bearing limit from exceeding the limit of the specification; S14: During welding, the standards for weld length and thickness are set to ensure the welding strength between steel structure units. The welding method and welding equipment for the upper chord, web and lower chord connection welds of the steel structure units are selected. For areas where welding is weak and prone to rust, the thickness of the steel structure needs to be increased and anti-rust agent needs to be sprayed after welding.

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