Fusiform steel pipe latticed column

Abstract

The utility model relates to a fusiform steel pipe latticed column, belongs to the technical field of civil engineering, and solves the problem that the building effect and the overall stability of the fusiform steel pipe latticed column are contradictory. The fusiform steel pipe latticed column comprises a plurality of single-section columns, the single-section column comprises a first single-section column and a second single-section column; the first single-section column comprises a limb tube, a transverse lacing tube, an inhaul cable structure, a single ear plate node and a space butterfly-shaped ear plate node; in the first single-section column, the number of the branch pipes is three, and the branch pipes are vertically arranged; the number of the transverse lacing pipes is six, the transverse lacing pipes are horizontally arranged, and the two ends of each transverse lacing pipe are connected with the corresponding nodes on the two adjacent branch pipes respectively; the number of the inhaul cable structures is six, one end of each inhaul cable structure is connected with the node through the single-lug-plate node, the other end of each inhaul cable structure is connected with the spatial butterfly-shaped lug plate node, and the spatial butterfly-shaped lug plate node is located on the central axis of the first single-section column. According to the utility model, the building effect and the overall stability can be balanced.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a shuttle-shaped steel tube lattice column. Background Art

[0002] The shuttle-shaped steel tube lattice column with hinged ends has a beautiful and slender appearance and is widely used in large public buildings such as terminal buildings, gymnasiums, and exhibition halls. In engineering practice, common shuttle-shaped steel tube lattice columns include limb tubes, tie tubes (transverse tie tubes, oblique tie tubes), etc. The three-limb shuttle-shaped steel tube lattice column with no oblique tie tubes and only transverse tie tubes in the structure is favored by architects because of the small number of rods and good permeability. However, the steel tube lattice column without oblique tie tubes may have two lowest-order buckling modes under the action of axial force, namely, symmetrical single-wave buckling mode and antisymmetric S-type buckling mode, among which the symmetrical single-wave buckling mode is bending instability, and the antisymmetric S-type buckling mode is shear instability. The two instability states affect the stability of the overall lattice column. Therefore, how to improve the overall stability of the three-limb shuttle-shaped steel tube lattice column without excessively affecting the architectural effect has become a difficult problem in the engineering community. Utility Model Content

[0003] In view of the above analysis, the embodiment of the utility model aims to provide a shuttle-shaped steel tube lattice column to solve the problem of the contradiction between the architectural effect and the overall stability of the shuttle-shaped steel tube lattice column in engineering practice.

[0004] The purpose of this utility model is mainly achieved through the following technical solutions:

[0005] A shuttle-shaped steel tube lattice column comprises a plurality of single-section columns;

[0006] The single-section column comprises a first single-section column and a second single-section column;

[0007] The first single-section column includes a limb tube, a cross-jointed tube, a cable structure, a single ear plate node and a spatial butterfly-shaped ear plate node;

[0008] In the first single-section column, the number of the limb tubes is three, which are arranged vertically, and the connecting line of the center of each limb tube on the horizontal cross section forms a triangle; the two ends of the first limb tube are nodes, and the nodes are used to connect another first limb tube;

[0009] In the first single-section column, the number of the transverse connecting tubes is six, which are arranged horizontally, and the two ends of each transverse connecting tube are respectively connected to the corresponding nodes on the two adjacent limb tubes;

[0010] In the first single-section column, the number of the cable structures is six, one end of each of the cable structures is connected to the node through the single ear plate node, and the other end is connected to the spatial butterfly-shaped ear plate node, and the spatial butterfly-shaped ear plate node is located on the central axis of the first single-section column; the angle formed by the projection of adjacent cable structures in the horizontal direction is 120°;

[0011] The second single-section column includes a second limb tube and a second cross tube.

[0012] Furthermore, two ends of the cable structure are respectively connected to the single ear plate node and the spatial butterfly-shaped ear plate node through pins.

[0013] Furthermore, in the single-section column, the number of the single-ear plate nodes is six.

[0014] Furthermore, a first pin hole is arranged on the single-ear plate node, and a first pin shaft is arranged on the first pin hole.

[0015] Furthermore, the installation direction of the first pin shaft is perpendicular to the length direction of the cable structure.

[0016] Furthermore, the spatial butterfly-shaped ear plate node includes a butterfly-shaped ear plate and a round steel rod.

[0017] Furthermore, a second pin hole is arranged on the butterfly-shaped ear plate, and a second pin shaft is arranged on the second pin hole.

[0018] Furthermore, the installation direction of the second pin shaft is perpendicular to the length direction of the cable structure.

[0019] Furthermore, it also includes a column top support node and a column base support node.

[0020] Furthermore, the second single-section column is located between the column top support node or the column base support node and the first single-section column.

[0021] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0022] (1) In the prior art, the shuttle-shaped steel lattice column uses oblique tie tubes, which cannot achieve the aesthetic and overall transparent architectural effect required by some buildings; the shuttle-shaped steel lattice column structure without oblique tie tubes may have two modes of lowest-order buckling modes under the action of axial force, affecting the stability of the overall structure. The utility model adopts a cable structure, which applies force to the nodes of each first single-section column, so that the six cable structures in the first single-section column are synergistically stressed to form a stable spatial structural system. At the same time, the cable structure can significantly enhance the shear stiffness and shear yield load of the shuttle-shaped steel lattice column, thereby improving the ability of the shuttle-shaped steel lattice column to resist antisymmetric instability.

[0023] (2) The cable structure is adopted in the utility model. While ensuring the overall stability of the shuttle-shaped steel lattice column, the slenderness of the cable structure makes the entire building transparent, achieving the goal of architectural beauty while taking into account the stability of the overall structure.

[0024] (3) In the utility model, a single-ear plate node structure and a spatial butterfly-shaped ear plate node structure are arranged according to the cable structure. The single-ear plate node structure is used to connect a single cable to a node, and the spatial butterfly-shaped ear plate node structure is used to gather six cable structures. The single-ear plate structure is welded to the limb tube by a steel column, thereby solving the connection problem between the cable structure and the limb tube.

[0025] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0027] Figure 1 A three-dimensional diagram of a shuttle-shaped steel tube lattice column of a specific embodiment;

[0028] Figure 2 For a specific embodiment Figure 1 A magnified view of part A;

[0029] Figure 3 For a specific embodiment Figure 1 Enlarged view of part B.

[0030] Reference numerals:

[0031] 1-single-section column, 11-first single-section column, 111-1-first limb tube, 112-1-first transverse tube, 113-cable structure, 114-single ear plate node, 115-spatial butterfly-shaped ear plate node, 1151-butterfly-shaped ear plate, 1152-round steel rod, 12-second single-section column, 111-2-second limb tube, 112-2-second transverse tube, 2-column top support node, 3-column foot support node. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0033] A specific embodiment of the utility model is as follows Figure 1 As shown, a shuttle-shaped steel tube lattice column is disclosed, which includes a plurality of single-section columns 1, a column top support node 2 and a column base support node 3.

[0034] The single-section column 1 includes a first single-section column 11 and a second single-section column 12. Figure 2 As shown, the first single-section column 11 includes a first limb tube 111 - 1 , a first cross tube 112 - 1 , a cable structure 113 , a single ear plate node 114 and a spatial butterfly-shaped ear plate node 115 .

[0035] In each first single-section column 11, there are three first limb tubes 111-1, which are arranged vertically, and the connecting line of the centers of each first limb tube 111-1 on the horizontal cross section forms a triangle. The first limb tube 111-1 is a seamless steel pipe or a straight seam steel pipe; the first limb tube 111-1 can be a straight rod or a curved rod. The connection between the first limb tube 111-1 and another first limb tube 111-1 adopts full penetration butt welding, and the welding position of the two first limb tubes 111-1 is a node.

[0036] In each first single-section column 11, there are six first transverse tubes 112-1, which are arranged horizontally. The two ends of each first transverse tube 112-1 are respectively connected to the corresponding nodes on two adjacent first limb tubes 111-1 to form two upper and lower triangles, and the first transverse tubes 112-1 are the sides of the triangle.

[0037] The first transverse connecting pipe 112-1 is a seamless steel pipe or a straight seam welded pipe, and the first transverse connecting pipe 112-1 is connected to the first limb pipe 111-1 by intersecting welding.

[0038] In order to improve the overall stability of the lattice column and form a more stable spatial structural system, six cable structures 113 are arranged in each first single-section column 11. The structures of the six cable structures 113 are exactly the same. One end of each cable structure 113 is connected to a node, and the other end converges on the central axis of the first single-section column 11. As a result, the six nodes are synergistically stressed to form a stable spatial structural system. Specifically, the angle formed by the projection of adjacent cable structures 113 in the horizontal direction is 120°.

[0039] Compared with the prior art that uses obliquely attached pipes, this embodiment uses a cable structure 113 and sets it as a spatially symmetrical structure to form a stable spatial structural system. At the same time, the use of the cable structure 113 can effectively enhance the shear stiffness and shear yield load of the shuttle steel tube lattice column, and improve the ability of the structure to resist antisymmetric instability.

[0040] Furthermore, in order to facilitate the installation of the cable structure 113 in the shuttle-shaped steel tube lattice column, a single ear plate node 114 and a spatial butterfly-shaped ear plate node 115 are set, and both ends of the cable structure 113 are respectively connected to the single ear plate node 114 and the spatial butterfly-shaped ear plate node 115 through pins.

[0041] The single-ear plate node is arranged at the connection between the cable structure 113 and the node of the first limb tube 111-1. Specifically, the number of the single-ear plate nodes 114 of each first single-section column 11 is six. In order to make the node force of the first limb tube 111-1 consistent with the direction of the cable structure 113, so as to increase the firmness of the node of the first limb tube 111-1, a first pin hole for connection is provided on the single-ear plate node 114, and a first pin shaft is provided on the first pin hole. The single-ear plate node 114 is movably connected to the cable structure 113 through a first pin shaft perpendicular to the length direction of the cable structure 113. The single-ear plate node 114 is made of steel plate and connected to the first limb tube 111-1 by a full penetration weld.

[0042] The spatial butterfly-shaped ear plate node 115 is located at the intersection of the six cable structures 113 and on the central axis of the first single-section column 11. Since the single ear plate node 114 can only connect the cable structure 113 in a single direction, and each first single-section column 11 has six cable structures 113 that intersect with each other, a spatial butterfly-shaped ear plate node 115 is provided to bring the six cable structures 113 together. The spatial butterfly-shaped ear plate node 115 is located on the central axis of the first single-section column 11. Specifically, the number of spatial butterfly-shaped ear plate nodes 115 for each first single-section column 11 is one. The spatial butterfly-shaped ear plate node 115 includes a butterfly-shaped ear plate 1151 connected to the cable structure 113 and a central round steel rod 1152, and the butterfly-shaped ear plate 1151 and the round steel rod 1152 are connected by a full penetration weld. A plurality of second pin holes for connecting with the cable structure 113 are provided on the butterfly-shaped ear plate 1151, and a second pin shaft is arranged on the second pin hole. The spatial butterfly-shaped ear plate node 115 is movably connected with the cable structure 113 via the second pin shaft.

[0043] There are two second single-section columns 12, one is adjacent to the column top support node 2, located between the column top support node 2 and the first single-section column 11; the other is adjacent to the column base support node 2, located between the column base support node 3 and the first single-section column 11.

[0044] like Figure 3 As shown, the second single-section column 12 includes a second limb tube 111-2 and a second cross tube 112-2.

[0045] In the second single-section column 12, there are three second limb tubes 111-2 arranged vertically, and the connecting line of the centers of each second limb tube 111-2 on the horizontal cross section forms a triangle. The second limb tube 111-2 is a seamless steel pipe or a straight seam steel pipe; the second limb tube 111-2 can be a straight rod or a curved rod.

[0046] In the second single-section column 12, there are three second transverse tubes 112-2, which are arranged horizontally. The two ends of each second transverse tube 112-2 are respectively connected to the corresponding nodes on two adjacent second limb tubes 111-2 to form a triangle, and the second transverse tubes 112-2 are the sides of the triangle.

[0047] The second transverse connecting pipe 112-2 is a seamless steel pipe or a straight seam welded pipe, and the second transverse connecting pipe 112-2 is connected to the second limb pipe 111-2 by intersecting welding.

[0048] The column top support node 2 is used to connect with the structure supported by the shuttle lattice column, and the column foot support node 3 is used to connect with the foundation of the shuttle steel tube lattice column. The column top structure is a circular steel tube concrete column or a cast steel structure; when applied to a flexible system of a tensioned cable membrane structure, the column top hinge support can be a cable intersection type support; when applied to a rigid system of a large-span space structure, the column top hinge support can be a ball joint support. In the column foot support node 3, the column foot structure is a circular steel tube concrete column or a cast steel structure, and the column foot hinge support is a ball joint support. The column top support node 2 and the column foot support node 3 are connected to the second limb tube 111-2 by a full penetration weld.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A shuttle-shaped steel tube lattice column, characterized in that: It comprises a plurality of single-section columns (1); The single-section column (1) comprises a first single-section column (11) and a second single-section column (12); The first single-section column (11) comprises a first limb tube (111-1), a first cross-jointed tube (112-1), a cable structure (113), a single ear plate node (114) and a spatial butterfly-shaped ear plate node (115); In the first single-section column (11), the number of the first limb tubes (111-1) is three, which are arranged vertically, and the connecting line of the center of each of the first limb tubes (111-1) on the horizontal cross section forms a triangle; the two ends of the first limb tube (111-1) are nodes, and the nodes are used to connect another first limb tube (111-1); In the first single-section column (11), the number of the first transverse tubes (112-1) is six; they are arranged horizontally, and the two ends of each first transverse tube (112-1) are respectively connected to corresponding nodes on two adjacent first limb tubes (111-1); In the first single-section column (11), the number of the cable structures (113) is six, one end of each of the cable structures (113) is connected to the node via the single ear plate node (114), and the other end is connected to the spatial butterfly-shaped ear plate node (115), and the spatial butterfly-shaped ear plate node (115) is located on the central axis of the first single-section column (11); the angle formed by the projections of adjacent cable structures (113) in the horizontal direction is 120°; The second single-section column (12) comprises a second limb tube (111-2) and a second cross tube (112-2).

2. The shuttle-shaped steel tube lattice column according to claim 1, characterized in that: The two ends of the cable structure (113) are respectively connected to the single ear plate node (114) and the spatial butterfly-shaped ear plate node (115) through a pin shaft.

3. The shuttle-shaped steel tube lattice column according to claim 2, characterized in that: In the first single-section column (11), the number of the single-ear plate nodes (114) is six.

4. The shuttle-shaped steel tube lattice column according to claim 3, characterized in that: A first pin hole is arranged on the single-ear plate node (114), and a first pin shaft is arranged on the first pin hole.

5. The shuttle-shaped steel tube lattice column according to claim 4, characterized in that: The installation direction of the first pin shaft is perpendicular to the length direction of the cable structure (113).

6. The shuttle-shaped steel tube lattice column according to claim 2, characterized in that: The spatial butterfly-shaped ear plate node (115) comprises a butterfly-shaped ear plate (1151) and a round steel bar (1152).

7. The shuttle-shaped steel tube lattice column according to claim 6, characterized in that: A second pin hole is arranged on the butterfly-shaped ear plate (1151), and a second pin shaft is arranged on the second pin hole.

8. The shuttle-shaped steel tube lattice column according to claim 7, characterized in that: The installation direction of the second pin shaft is perpendicular to the length direction of the cable structure (113).

9. The shuttle-shaped steel tube lattice column according to any one of claims 1 to 8, characterized in that: It also includes a column top support node (2) and a column foot support node (3).

10. The shuttle-shaped steel tube lattice column according to claim 9, characterized in that: The second single-section column (12) is located between the column top support node (2) or the column base support node (3) and the first single-section column (11).

Images