Large-span steel structure pipe truss awning structure

Abstract

The invention discloses a large-span steel structure pipe truss awning structure. The large-span steel structure pipe truss awning structure comprises 2N sets of embedded parts, 2N sets of supports, 2N steel truss latticed columns, N arched steel truss beams and M raft-shaped steel truss beams. Wherein N and M are both natural numbers greater than or equal to 2, and N = M + 1. The embedded part is positioned below the steel truss latticed column, and is cast in situ with the reinforced concrete main body structure synchronously; two types of supports including a tensile spherical steel support and a tensile sliding rubber support are welded and fixed to the embedded part, a steel connecting piece and a ribbed welding hollow ball are welded and fixed to the upper portion of the supports, a steel truss latticed column is welded and fixed to the upper portion of the ribbed welding hollow ball, an arch-shaped steel truss beam is welded and fixed to the steel truss latticed column, and the arch-shaped steel truss beam is welded and fixed to the upper portion of the steel truss latticed column. And raft-shaped steel truss girders are welded and fixed on the arched steel truss girders. A stress system formed by the steel truss latticed columns, the arched steel truss girders and the raft-shaped steel truss girders meets the use requirement of a large-span space.

Description

Technical Field

[0001] The invention belongs to the technical field of building canopies, and in particular relates to a large-span steel structure tube truss canopy structure. Background Art

[0002] Skylights are generally used on the roofs of public buildings such as urban complexes, commercial streets, stadiums, hotels, and exhibition centers. They mainly serve to beautify the building shape, provide lighting, and provide shelter from wind and rain. Due to their large spans, they are often used in the form of steel structure tube trusses, grids, grid shells, and other spatial structures to solve the problems of force and deadweight.

[0003] Steel structure tube truss beam-column structure is often used in the design of large-span space structure due to its excellent mechanical properties and high space utilization. For canopy structures with a span of more than 80 meters, the steel structure tube truss beam-column structure can provide sufficient bearing capacity, rigidity and stability. At the same time, since the structural components are mostly made of round steel pipes and square steel pipes, the steel structure usage of the structure is relatively controllable and its economy is relatively good. In addition, the steel structure tube truss structure can ensure the structural safety, durability and economy of the entire canopy through reasonable material selection and node design. Summary of the invention

[0004] The purpose of the present invention is to provide a large-span steel structure tube truss canopy structure, which can solve the technical problems of using large-span structures.

[0005] An embodiment of the present invention provides a large-span steel structure tube truss canopy structure, and the large-span steel structure tube truss canopy structure comprises:

[0006] 2N groups of embedded parts 2, each group of embedded parts 2 has 3 embedded parts; the embedded parts 2 are located inside the reinforced concrete main structure 1 and are cast-in-place with the reinforced concrete main structure 1; the reinforced concrete main structure 1 is composed of a number of single buildings with different heights and volumes; the embedded parts 2 are welded by perforation and plug welding of upper and lower circular steel plates 21 and threaded steel bars 22 arranged in a circular array with equal spacing in the middle, and a cross-shaped shear key 23 is welded and fixed below the upper circular steel plate 21 to increase the structural stability and safety of the column foot;

[0007] 2N groups of bearings 3, each group of the bearings 3 has 3 members; the embedded parts 2 are welded and fixed with tensile spherical steel bearings 31 and tensile sliding rubber bearings 32; the tensile spherical steel bearings 31 are arranged at the column feet in the middle of the canopy, accounting for half of the total number of bearings 3; the tensile sliding rubber bearings 32 are arranged at the column feet at both ends of the canopy, also accounting for half of the total number of bearings 3;

[0008] 2N groups of steel connectors 4, each group of which has 3 steel connectors 4; steel connectors 4 are welded and fixed on the tensile spherical steel bearing 31 and the tensile sliding rubber bearing 32, and the steel connectors 4 are composed of a steel connector circular steel plate 41 and a stiffening steel plate 42 arranged in an equidistant annular array and welded vertically thereto;

[0009] 2N groups of column foot ribbed welded hollow balls 5, each group of which has 3 hollow balls 5; the column foot ribbed welded hollow balls 5 are welded and fixed on the top of the steel connecting piece 4;

[0010] 2N steel truss lattice columns 6, the column foot ribbed welded hollow ball 5 is welded and fixed with a column longitudinal force-bearing member 61 of the steel truss lattice column 6; each of the steel truss lattice columns 6 is composed of a column longitudinal force-bearing member 61, a column web member 62, a column chord member 63, a column long arm diagonal member 64, a column short arm diagonal member 65 and a column edge closing member 66; the column foot of the steel truss lattice column 6 falls on a reinforced concrete main structure 1 at different heights, so the steel truss lattice column 6 has a variation in height;

[0011] N arched steel truss beams 7, the cross section of the arched steel truss beam 7 is an irregular quadrilateral, the arched steel truss beam 7 is composed of a common-rod truss beam transverse force-bearing member 71, a self-owned arched truss beam transverse force-bearing member 72, an arched truss beam upper chord 73, an arched truss beam lower chord 74, an arched truss beam web member 75 and an arched truss beam middle strengthening diagonal rod 76; the middle strengthening diagonal rod 76 is only arranged in the middle of the arched steel truss beam 7 to strengthen the rigidity and overall stability;

[0012] M raft-shaped steel truss beams 8, the cross-section of the raft-shaped steel truss beam 8 is an inverted triangle, and the raft-shaped steel truss beam 8 is composed of a common-rod truss beam transverse force-bearing member 71, an independent raft-shaped truss beam transverse force-bearing member 81, a raft-shaped truss beam upper chord 82 and a raft-shaped truss beam lower chord 83.

[0013] Optionally, both N and M are natural numbers greater than or equal to 2, and N=M+1.

[0014] Optionally, the upper parts of the two ends of the steel truss lattice column 6 and the arched steel truss beam 7 are connected to each other with hollow balls 9 welded to the upper ribs of the truss beam; the two ends of the steel truss lattice column 6 and the raft-shaped steel truss beam 8 are connected to each other with hollow balls 10 welded to the lower ribs of the truss beam;

[0015] Optionally, the column base ribbed welded hollow ball 5, the truss beam upper ribbed welded hollow ball 9 and the truss beam lower ribbed welded hollow ball 10 are all formed by welding two hot stamped semi-circular balls with ribs, the weld quality grade is level two, and the semi-circular balls are machined with grooves; the surface of the finished hollow ball after welding should be smooth and flat, and should not have local protrusions and wrinkles.

[0016] Optionally, each component member of the steel truss lattice column 6, including the column longitudinal force-bearing member 61, the column web member 62, the column chord member 63, the column long arm diagonal member 64, the column short arm diagonal member 65 and the column edge closing member 66, all have a cross-section of a circular steel tube.

[0017] Optionally, among the components of the arched steel truss beam 7, the cross-sections of the common-rod truss beam transverse force-bearing members 71, the independent arched truss beam transverse force-bearing members 72, the arched truss beam web members 75 and the arched truss beam middle reinforcing diagonal members 76 are circular steel tube cross-sections; the cross-sections of the arched truss beam upper chord 73 and the arched truss beam lower chord 74 are square steel tube cross-sections.

[0018] Optionally, among the components of the raft steel truss beam 8, the cross-sections of the common-rod truss beam transverse force-bearing members 71 and the independent raft truss beam transverse force-bearing members 81 are circular steel tube cross-sections; the cross-sections of the raft truss beam upper chord 82 and the raft truss beam lower chord 83 are square steel tube cross-sections.

[0019] Optionally, the common-rod truss beam transverse force-bearing member 71 is shared by the arched steel truss beam 7 and the rafted steel truss beam 8, and is expressed in the arched steel truss beam 7 and the rafted steel truss beam 8 respectively, just to facilitate the understanding of the component system of the complete truss beam structure.

[0020] Optionally, the surface treatment grade of all steel structure components and rods constituting the large-span steel structure tube truss canopy structure shall not be lower than Sa2.5, and shall be painted with heavy-duty anti-corrosion paint to prevent rust and corrosion. The heavy-duty anti-corrosion paint shall be composed of a matching primer, intermediate paint and topcoat, with a total dry paint film thickness of not less than 250μm, and the color of the topcoat shall be in accordance with the requirements of the architectural design effect.

[0021] The main technical effects achieved by the embodiments of the present invention are: by setting embedded parts in the reinforced concrete main structure, the embedded parts and the main structure are cast in situ synchronously; two types of bearings, tensile spherical steel bearings and tensile sliding rubber bearings produced by professional manufacturers, are welded and fixed on the embedded parts, steel connectors and ribbed welded hollow balls are welded and fixed above the bearings, steel truss lattice columns are welded and fixed above the ribbed welded hollow balls, and the steel truss lattice columns are connected to the arched steel truss beams and raft-shaped steel truss beams by intersecting welding. The steel structure tube truss force system composed of steel truss lattice columns, arched steel truss beams and raft-shaped steel truss beams meets the needs of large-span space use; at the same time, the steel structure tube truss structure can ensure the structural safety, durability and economy of the entire canopy through reasonable material selection and node design. In addition, when implementing the steel structure tube truss canopy structure system, special attention should be paid to the following key and difficult issues. First, there are a large number of space bends, and some space bends have large spans; second, the bends are welded and the angles are different; and third, multiple tubes are welded and the largest number of tubes is up to 9 welded at the same location, resulting in a small intersection angle and a long intersection length. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall axial schematic diagram of a large-span steel structure tube truss canopy structure in an embodiment of the present invention;

[0023] Figure 2 This is a large-scale drawing of the embedded parts in the embodiment of the present invention;

[0024] Figure 3 AA cross-sectional view of the embedded part in the embodiment of the present invention;

[0025] Figure 4 Schematic diagram of the connection node between the tensile spherical steel support and the reinforced concrete main structure in an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection node between the tensile sliding rubber bearing and the reinforced concrete main structure in an embodiment of the present invention;

[0027] Figure 6 BB is a cross-sectional view of the connection between the steel connector and the support and the column foot ribbed and welded hollow ball in the embodiment of the present invention;

[0028] Figure 7 This is a schematic axial view of a steel truss lattice column in an embodiment of the present invention;

[0029] Figure 8 It is a vertical schematic diagram of a steel truss lattice column component assembly in an embodiment of the present invention;

[0030] Fig. 9 This is a schematic axial view of an arched steel truss beam in an embodiment of the present invention;

[0031] Fig.10 Schematic diagram of the components of the middle part of the arched steel truss beam in the embodiment of the present invention;

[0032] Fig.11 It is a schematic axial view of a raft-shaped steel truss beam in an embodiment of the present invention.

[0033] Description of the drawings: 1. Reinforced concrete main structure; 2. Embedded parts; 21. Circular steel plate; 22. Threaded steel bar; 23. Cross shear key; 3. Support; 31. Tensile ball steel support; 32. Tensile sliding rubber support; 4. Steel connector; 41. Circular steel plate of steel connector; 42. Stiffening steel plate; 5. Hollow ball welded with ribs at the column foot; 6. Steel truss lattice column; 61. Column longitudinal force rod; 62. Column web rod; 63. Column chord rod; 64. Column long arm diagonal rod; 65. Column short arm diagonal rod; 66. Column edge retractor Mouth member; 7. Arched steel truss beam; 71. Transverse force-bearing member of common truss beam; 72. Transverse force-bearing member of self-owned arched truss beam; 73. Upper chord of arched truss beam; 74. Lower chord of arched truss beam; 75. Web member of arched truss beam; 76. Strengthening diagonal member in the middle of arched truss beam; 8. Raft steel truss beam; 81. Transverse force-bearing member of self-owned rafted truss beam; 82. Upper chord of rafted truss beam; 83. Lower chord of rafted truss beam; 9. Hollow ball welded with ribs on the upper part of truss beam; 10. Hollow ball welded with ribs on the lower part of truss beam. DETAILED DESCRIPTION

[0034] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The modes described in the following exemplary embodiments do not represent all modes consistent with the present invention. Instead, they are merely examples of devices consistent with some aspects of the present invention as detailed in the appended claims.

[0035] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantitative limitation, but indicate that there is at least one. If only "one" is referred to, it will be separately stated. "Multiple" or "several" means two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for the convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "an", "the" and "the" used in the present specification and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0036] like Figure 1-11 As shown, an embodiment of the present invention provides a large-span steel structure tube truss canopy structure. The large-span steel structure tube truss canopy structure includes:

[0037] 2N groups of embedded parts 2, each group of embedded parts 2 has 3 embedded parts; the embedded parts 2 are located inside the reinforced concrete main structure 1 and are cast-in-place with the reinforced concrete main structure 1; the reinforced concrete main structure 1 is composed of a number of single buildings with different heights and volumes; the embedded parts 2 are welded by perforation and plug welding of upper and lower circular steel plates 21 and threaded steel bars 22 arranged in a circular array with equal spacing in the middle, and a cross-shaped shear key 23 is welded and fixed below the upper circular steel plate 21 to increase the structural stability and safety of the column foot;

[0038] 2N groups of bearings 3, each group of the bearings 3 has 3 members; the embedded parts 2 are welded and fixed with tensile spherical steel bearings 31 and tensile sliding rubber bearings 32; the tensile spherical steel bearings 31 are arranged at the column feet in the middle of the canopy, accounting for half of the total number of bearings 3; the tensile sliding rubber bearings 32 are arranged at the column feet at both ends of the canopy, also accounting for half of the total number of bearings 3;

[0039] 2N groups of steel connectors 4, each group of which has 3 steel connectors 4; steel connectors 4 are welded and fixed on the tensile spherical steel bearing 31 and the tensile sliding rubber bearing 32, and the steel connectors 4 are composed of a steel connector circular steel plate 41 and a stiffening steel plate 42 arranged in an equidistant annular array and welded vertically thereto;

[0040] 2N groups of column foot ribbed welded hollow balls 5, each group of which has 3 hollow balls 5; the column foot ribbed welded hollow balls 5 are welded and fixed on the top of the steel connecting piece 4;

[0041] 2N steel truss lattice columns 6, the column foot ribbed welded hollow ball 5 is welded and fixed with a column longitudinal force-bearing member 61 of the steel truss lattice column 6; each of the steel truss lattice columns 6 is composed of a column longitudinal force-bearing member 61, a column web member 62, a column chord member 63, a column long arm diagonal member 64, a column short arm diagonal member 65 and a column edge closing member 66; the column foot of the steel truss lattice column 6 falls on a reinforced concrete main structure 1 at different heights, so the steel truss lattice column 6 has a variation in height;

[0042] N arched steel truss beams 7, the cross section of the arched steel truss beam 7 is an irregular quadrilateral, the arched steel truss beam 7 is composed of a common-rod truss beam transverse force-bearing member 71, a self-owned arched truss beam transverse force-bearing member 72, an arched truss beam upper chord 73, an arched truss beam lower chord 74, an arched truss beam web member 75 and an arched truss beam middle strengthening diagonal rod 76; the middle strengthening diagonal rod 76 is only arranged in the middle of the arched steel truss beam 7 to strengthen the rigidity and overall stability;

[0043] M raft-shaped steel truss beams 8, the cross-section of the raft-shaped steel truss beam 8 is an inverted triangle, and the raft-shaped steel truss beam 8 is composed of a common-rod truss beam transverse force-bearing member 71, an independent raft-shaped truss beam transverse force-bearing member 81, a raft-shaped truss beam upper chord 82 and a raft-shaped truss beam lower chord 83.

[0044] Both N and M are natural numbers greater than or equal to 2, and N=M+1.

[0045] The upper parts of the two ends of the steel truss lattice column 6 and the arched steel truss beam 7 are connected to each other with hollow balls 9 welded to the upper ribs of the truss beam; the two ends of the steel truss lattice column 6 and the raft-shaped steel truss beam 8 are connected to each other with hollow balls 10 welded to the lower ribs of the truss beam;

[0046] The column foot ribbed welded hollow ball 5, the truss beam upper ribbed welded hollow ball 9 and the truss beam lower ribbed welded hollow ball 10 are all formed by two hot stamped semi-circular balls ribbed and welded, the weld quality grade is level 2, and the semi-circular balls are machined with grooves; the surface of the finished hollow ball after welding should be smooth and flat, and should not have local protrusions and wrinkles.

[0047] The cross sections of the components of the steel truss lattice column 6, including the column longitudinal force-bearing member 61, the column web member 62, the column chord member 63, the column long arm diagonal member 64, the column short arm diagonal member 65 and the column edge closing member 66, are all circular steel tube cross sections.

[0048] Among the components of the arched steel truss beam 7, the cross-sections of the common-rod truss beam transverse force-bearing rod 71, the independent arched truss beam transverse force-bearing rod 72, the arched truss beam web rod 75 and the arched truss beam middle reinforcing diagonal rod 76 are circular steel tube cross-sections; the cross-sections of the arched truss beam upper chord rod 73 and the arched truss beam lower chord rod 74 are square steel tube cross-sections.

[0049] Among the components of the raft steel truss beam 8, the cross-sections of the common-rod truss beam transverse force-bearing members 71 and the independent raft truss beam transverse force-bearing members 81 are circular steel tube cross-sections; the cross-sections of the raft truss beam upper chord 82 and the raft truss beam lower chord 83 are square steel tube cross-sections.

[0050] The common-rod truss beam transverse force-bearing member 71 is shared by the arched steel truss beam 7 and the rafted steel truss beam 8, and is expressed in the arched steel truss beam 7 and the rafted steel truss beam 8 respectively, just to facilitate the understanding of the component system of the complete truss beam structure.

[0051] The surface treatment grade of all steel structure components and rods that make up the large-span steel structure tube truss canopy structure shall not be lower than Sa2.5, and they shall be painted with heavy-duty anti-corrosion paint to prevent rust and corrosion. The heavy-duty anti-corrosion paint consists of a matching primer, intermediate paint and topcoat. The total dry paint film thickness shall not be less than 250μm, and the color of the topcoat shall be in accordance with the requirements of the architectural design effect.

[0052] The main technical effects achieved by the embodiments of the present invention are: by setting embedded parts in the reinforced concrete main structure, the embedded parts and the main structure are cast in situ synchronously; two types of bearings, tensile spherical steel bearings and tensile sliding rubber bearings produced by professional manufacturers, are welded and fixed on the embedded parts, steel connectors and ribbed welded hollow balls are welded and fixed above the bearings, steel truss lattice columns are welded and fixed above the ribbed welded hollow balls, and the steel truss lattice columns are connected to the arched steel truss beams and raft-shaped steel truss beams by intersecting welding. The steel structure tube truss force system composed of steel truss lattice columns, arched steel truss beams and raft-shaped steel truss beams meets the needs of large-span space use; at the same time, the steel structure tube truss structure can ensure the structural safety, durability and economy of the entire canopy through reasonable material selection and node design. In addition, when implementing the steel structure tube truss canopy structure system, special attention should be paid to the following key and difficult issues. First, there are a large number of space bends, and some space bends have large spans; second, the bends are welded and the angles are different; and third, multiple tubes are welded and the largest number of tubes is as many as 9 tubes welded at the same location, resulting in a small intersection angle and a long intersection length.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A large-span steel tube truss canopy structure, characterized by: The large-span steel structure tube truss canopy structure comprises: 2N groups of embedded parts (2), each group of embedded parts (2) has 3 embedded parts; the embedded parts (2) are located inside the reinforced concrete main structure (1) and are cast-in-situ constructed synchronously with the reinforced concrete main structure (1); the reinforced concrete main structure (1) is composed of a plurality of single buildings of different heights and volumes; the embedded parts (2) are welded by perforation plug welding of upper and lower circular steel plates (21) and threaded steel bars (22) arranged in a circular array with equal spacing in the middle, and a cross-shaped shear key (23) is welded and fixed below the upper circular steel plate (21) to increase the structural stability and safety of the column foot; 2N groups of supports (3), each group of supports (3) has 3 supports; the embedded parts (2) are welded and fixed with tensile spherical steel supports (31) and tensile sliding rubber supports (32); the tensile spherical steel supports (31) are arranged at the column feet in the middle of the canopy, accounting for half of the total number of supports (3); the tensile sliding rubber supports (32) are arranged at the column feet at both ends of the canopy, also accounting for half of the total number of supports (3); 2N groups of steel connectors (4), each group of the steel connectors (4) has 3 members; the steel connectors (4) are welded and fixed above the tensile spherical steel support (31) and the tensile sliding rubber support (32), and the steel connectors (4) are composed of a steel connector circular steel plate (41) and stiffening steel plates (42) vertically welded thereto and arranged in an equidistant annular array; 2N groups of column foot ribbed welded hollow balls (5), each group of column foot ribbed welded hollow balls (5) has 3 pieces; the column foot ribbed welded hollow balls (5) are welded and fixed above the steel connecting piece (4); 2N steel truss lattice columns (6), wherein a longitudinal force-bearing member (61) of the steel truss lattice column (6) is welded and fixed above the hollow ball (5) welded to the column foot with ribs; each of the steel truss lattice columns (6) is composed of a longitudinal force-bearing member (61), a column web member (62), a column chord member (63), a column long arm diagonal member (64), a column short arm diagonal member (65) and a column edge closing member (66); the column foot of the steel truss lattice column (6) falls on a reinforced concrete main structure (1) of different heights, so that the height of the steel truss lattice column (6) varies; N arched steel truss beams (7), wherein the cross section of the arched steel truss beam (7) is an irregular quadrilateral, and the arched steel truss beam (7) is composed of a common-rod truss beam transverse force-bearing member (71), a self-owned arched truss beam transverse force-bearing member (72), an arched truss beam upper chord member (73), an arched truss beam lower chord member (74), an arched truss beam web member (75), and an arched truss beam middle reinforcement diagonal member (76); the middle reinforcement diagonal member (76) is only arranged in the middle of the arched steel truss beam (7) to enhance rigidity and overall stability; M raft-shaped steel truss beams (8), the cross section of the raft-shaped steel truss beam (8) is an inverted triangle, and the raft-shaped steel truss beam (8) is composed of a common-rod truss beam transverse force-bearing member (71), a self-owned raft-shaped truss beam transverse force-bearing member (81), a raft-shaped truss beam upper chord (82) and a raft-shaped truss beam lower chord (83).

2. The large-span steel structure tube truss canopy structure according to claim 1, characterized in that: Both N and M are natural numbers greater than or equal to 2, and N=M+1.

3. The large-span steel structure tube truss canopy structure according to claim 1, characterized in that: The upper parts of the two ends of the steel truss lattice column (6) and the arched steel truss beam (7) are connected to each other by hollow balls (9) welded to the upper part of the truss beam and ribbed, and the hollow balls (10) welded to the lower part of the truss beam are connected to each other by ...

4. The large-span steel structure tube truss canopy structure according to claim 1, characterized in that: The column foot ribbed welded hollow ball (5), the truss beam upper ribbed welded hollow ball (9) and the truss beam lower ribbed welded hollow ball (10) are all formed by two hot stamped semi-circular balls ribbed and welded, the weld quality grade is level 2, and the semi-circular balls are machined with grooves; the surface of the finished hollow ball after welding should be smooth and flat, and should not have local protrusions and wrinkles.

5. The large-span steel structure tube truss canopy structure according to claim 1, characterized in that: The cross sections of the various components of the steel truss lattice column (6), including the column longitudinal force-bearing member (61), the column web member (62), the column chord member (63), the column long arm diagonal member (64), the column short arm diagonal member (65) and the column edge closing member (66), are all circular steel tube cross sections.

6. The large-span steel structure tube truss canopy structure according to claim 1, characterized in that: Among the components of the arched steel truss beam (7), the cross-sections of the common-rod truss beam transverse force-bearing rod (71), the self-owned arched truss beam transverse force-bearing rod (72), the arched truss beam web rod (75) and the arched truss beam middle reinforcement diagonal rod (76) are circular steel tube cross-sections; and the cross-sections of the arched truss beam upper chord rod (73) and the arched truss beam lower chord rod (74) are square steel tube cross-sections.

7. The large-span steel structure tube truss canopy structure according to claim 1, characterized in that: Among the components of the raft-shaped steel truss beam (8), the cross-sections of the common-rod truss beam transverse force-bearing rod (71) and the independent raft-shaped truss beam transverse force-bearing rod (81) are circular steel tube cross-sections; and the cross-sections of the raft-shaped truss beam upper chord (82) and the raft-shaped truss beam lower chord (83) are square steel tube cross-sections.

8. The large-span steel structure tube truss canopy structure according to claim 1, characterized in that: The common-rod truss beam transverse force-bearing member (71) is shared by the arched steel truss beam (7) and the rafted steel truss beam (8), and is respectively expressed in the arched steel truss beam (7) and the rafted steel truss beam (8), just to facilitate the understanding of the component system of the complete truss beam structure.

9. The large-span steel structure tube truss canopy structure according to claim 1, characterized in that: The surface treatment grade of all steel structure components and rods that make up the large-span steel structure tube truss canopy structure shall not be lower than Sa2.5, and they shall be painted with heavy-duty anti-corrosion paint to prevent rust and corrosion. The heavy-duty anti-corrosion paint consists of a matching primer, intermediate paint and topcoat. The total dry paint film thickness is not less than 250μm, and the color of the topcoat shall be in accordance with the requirements of the architectural design effect.

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