Multi-pipe connected steel structure support

Abstract

The utility model discloses a multi-pipe connected steel structure support which comprises a steel pipe concrete column, an end socket steel plate is welded to the top of the steel pipe concrete column, a finished product support is welded to the top of the end socket steel plate, and a support steel plate is welded to the top of the finished product support. A short steel column is welded to the top of the support steel plate, and four pipe truss lower chords are connected to the periphery of the short steel column. A node connecting plate is welded to the top of the short steel column, a hollow hemisphere is welded to the top of the node connecting plate, and main truss diagonal web members are connected to the periphery of the hollow hemisphere. The utility model solves the problems of complex multi-pipe connection nodes, multiple cross welding seams, hidden welding seams and the like in a pipe truss structure, and for a conventional large-span pipe truss structure, the adoption of cast steel nodes is avoided, the manufacturing cost is saved, and the construction period influence caused by process defects is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a steel structure support connected by multiple pipes. Background Art

[0002] With the development of the economy, people have higher and higher requirements on building functions and aesthetics. Steel structure tube truss has excellent stress performance, transparent effect, can adapt to different building space shapes, and the cross-sectional rotation radius of the component is better than other components with the same cross-sectional area. It has good mechanical properties and conforms to the design concepts of modern architecture in terms of space, use, economy, etc. Therefore, the tube truss structure is widely used in modern public buildings.

[0003] Since large-span public buildings have high requirements for indoor space, they are usually designed with no columns or few columns. Therefore, there are often many tube trusses at the column top supports and complex node connections. Generally, for nodes with too many rods, cast steel nodes are used in the design to meet the connection and force requirements. However, cast steel nodes are heavy and costly, and there is also the possibility of remelting and recasting due to processing defects, which also affects the project cost and construction period to a certain extent.

[0004] In view of the above problems, a multi-tube connection method for column top tube truss connection nodes is proposed to solve the problem of excessive connection rods in some large-span tube truss structure nodes and avoid the use of cast steel nodes with higher cost and more complicated process. Utility Model Content

[0005] The utility model aims to provide a steel structure support with multiple tube connections to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a multi-tube connected steel structure support, comprising a steel tube concrete column, a head steel plate is welded on the top of the steel tube concrete column, a finished support is welded on the top of the head steel plate, and a support steel plate is welded on the top of the finished support;

[0007] A short steel column is welded on the top of the support steel plate, and four lower chords of the tube truss are connected around the short steel column;

[0008] A node connection plate is welded to the top of the short steel column, a hollow hemisphere is welded to the top of the node connection plate, and the four sides of the hollow hemisphere are connected to the main truss diagonal web members.

[0009] Preferably, a grouting hole is provided at the center of the top of the head steel plate, and air holes are provided around the top of the head steel plate.

[0010] Preferably, a cross-shaped transverse partition is additionally provided at the top of the steel tube concrete column, and a cross-shaped vertical stiffening plate is installed at the bottom of the cross-shaped transverse partition.

[0011] Preferably, the size of the support steel plate is smaller than the outer size of the finished support, and the welding between the finished support and the support steel plate adopts full penetration or semi-penetration.

[0012] Preferably, the diameter of the short steel column is smaller than the diameter of the support steel plate, and the welding between the short steel column and the support steel plate adopts full penetration or semi-penetration.

[0013] Preferably, a second transverse partition is provided on both the upper and lower surfaces of the lower chord of the inner-aligned tube truss of the short steel column.

[0014] Preferably, a cross stiffening plate is provided in the hollow hemisphere.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Solve the problems of complex multi-tube connection nodes, multiple cross welds, and hidden welds in the tube truss structure;

[0017] 2. For conventional large-span tube truss structures, avoid using cast steel nodes to save costs and reduce the impact of process defects on construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the AA cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the BB cross-sectional structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the CC cross-sectional structure of the utility model.

[0023] In the figure: 1. Steel tube concrete column; 2. Head steel plate; 3. Finished product support; 4. Grouting hole; 5. Air vent; 6. Cross-shaped cross diaphragm 1; 7. Cross-shaped vertical stiffening plate; 8. Support steel plate; 9. Short steel column; 10. Lower chord of tube truss; 11. Cross diaphragm 2; 12. Node connecting plate; 13. Hollow hemisphere; 14. Cross stiffening plate; 15. Main truss diagonal web member. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: a multi-tube connected steel structure support, including a steel tube concrete column 1, a head steel plate 2 is welded on the top of the steel tube concrete column 1, a finished support 3 is welded on the top of the head steel plate 2, and a support steel plate 8 is welded on the top of the finished support 3;

[0026] A short steel column 9 is welded to the top of the support steel plate 8, and four tube truss lower chords 10 are connected around the short steel column 9;

[0027] A node connection plate 12 is welded to the top of the short steel column 9. The size of the node connection plate 12 is the same as that of the support steel plate, and the plate thickness is determined according to calculation and construction requirements. A hollow hemisphere 13 is welded to the top of the node connection plate 12. The main truss diagonal web members 15 are connected to the four sides of the hollow hemisphere 13. The diameter and plate thickness of the hollow hemisphere 13 are determined according to calculation and intersecting construction requirements, and at the same time match the diameter of the short steel column.

[0028] In the utility model, a grouting hole 4 is opened at the center of the top of the head steel plate 2, and air holes 5 are opened around the top of the head steel plate 2.

[0029] In the utility model, a cross-shaped transverse partition 6 is additionally provided at the top of the steel tube concrete column 1, and a cross-shaped vertical stiffening plate 7 is installed at the bottom of the cross-shaped transverse partition 6, and the plate thickness is determined according to calculation and structural requirements.

[0030] In the utility model, the size of the support steel plate 8 is smaller than the outer size of the finished support 3, the welding form between the finished support 3 and the support steel plate 8 adopts full penetration or semi-penetration, the diameter of the short steel column 9 is smaller than the diameter of the support steel plate 8, and the welding form between the short steel column 9 and the support steel plate 8 adopts full penetration or semi-penetration.

[0031] In the utility model, a transverse partition plate 11 is arranged on the upper and lower surfaces of the lower chord 10 of the short steel column 9 aligned with the tube truss.

[0032] In the utility model, a cross stiffening plate 14 is arranged inside the hollow hemisphere 13 , thereby improving the structural stability of the hollow hemisphere 13 .

[0033] The utility model: a head steel plate 2 is welded on the top of a steel tube concrete column 1, the plate thickness is determined according to specifications and force requirements, a grouting hole 4 and a vent hole 5 are opened on the head steel plate 2 as needed, a finished support 3 is welded and fixed to the head steel plate 2, a cross-shaped vertical stiffening plate 7 and a cross partition 6 are added within a certain height range (variable according to design requirements) at the top of the steel tube concrete column 1 connected to the finished support 3, the plate thickness is determined according to calculation and structural requirements, a support steel plate 8 is welded on the surface of the finished support 3, the size of which is slightly smaller than the outer size of the support, the welding form adopts full penetration or semi-penetration according to design requirements, a short steel column 9 is welded above the connection of the finished support 3, the diameter and wall thickness of the short steel column 9 meet the force and structural requirements of the node connection, and the diameter is slightly smaller than the size of the support steel plate, and full penetration or semi-penetration is adopted between the steel column and the support steel plate according to design requirements Semi-penetration and other forms, at the intersection of the lower chord 10 of the tube truss and the short steel column 9, a cross partition 11 is arranged in the short steel column 9 to align with the upper and lower surfaces of the lower chord member 10 of the tube truss, and a node connecting plate 12 is welded on the top of the short steel column 9. The size of the connecting plate 12 is the same as that of the support steel plate 8, and the plate thickness is determined according to calculation and structural requirements. Above the node connecting plate 12, a hollow hemisphere 13 is welded, and the diameter and plate thickness of the hollow hemisphere 13 are determined according to calculation and intersecting structural requirements, and at the same time match the diameter of the short steel column. A cross stiffening plate 14 is arranged in the hollow hemisphere, and the thickness of the stiffening plate is determined according to structural requirements; the problems of complex multi-tube connection nodes, many cross welds, and hidden welds in the tube truss structure are solved. For conventional large-span tube truss structures, cast steel nodes are avoided, construction costs are saved, and the impact of construction period caused by process defects is reduced.

[0034] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the utility model have been shown and described, it is understandable to those of ordinary skill in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel structure support with multiple tube connections, characterized in that: It comprises a steel tube concrete column (1), a head steel plate (2) is welded to the top of the steel tube concrete column (1), a finished support (3) is welded to the top of the head steel plate (2), and a support steel plate (8) is welded to the top of the finished support (3); A short steel column (9) is welded to the top of the support steel plate (8), and four lower chords (10) of the tubular truss are connected around the short steel column (9); A node connection plate (12) is welded to the top of the short steel column (9), a hollow hemisphere (13) is welded to the top of the node connection plate (12), and the main truss diagonal web members (15) are connected to the four sides of the hollow hemisphere (13).

2. The steel structure support with multiple tube connections according to claim 1, characterized in that: A grouting hole (4) is provided at the center of the top of the head steel plate (2), and air holes (5) are provided around the top of the head steel plate (2).

3. The steel structure support with multiple tube connections according to claim 1, characterized in that: A cross-shaped transverse partition (6) is additionally provided at the top of the steel tube concrete column (1), and a cross-shaped vertical stiffening plate (7) is installed at the bottom of the cross-shaped transverse partition (6).

4. The steel structure support with multiple tube connections according to claim 1, characterized in that: The size of the support steel plate (8) is smaller than the outer size of the finished support (3), and the welding form between the finished support (3) and the support steel plate (8) is full penetration or semi-penetration.

5. The steel structure support with multiple tube connections according to claim 1, characterized in that: The diameter of the short steel column (9) is smaller than the diameter of the support steel plate (8), and the welding form between the short steel column (9) and the support steel plate (8) is full penetration or semi-penetration.

6. The steel structure support with multiple tube connections according to claim 1, characterized in that: Two transverse partitions (11) are arranged on the upper and lower surfaces of the lower chord (10) of the inner alignment tube truss of the short steel column (9).

7. The multi-tube connected steel structure support according to claim 1, characterized in that: A cross stiffening plate (14) is arranged inside the hollow hemisphere (13).

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