Steel pipe X-shaped cross node connecting structure

Abstract

The utility model discloses a steel pipe X-shaped cross joint connecting structure which comprises a continuous first steel pipe, a second steel pipe and a third steel pipe, the second steel pipe and the third steel pipe are located on the two sides of the first steel pipe respectively, and the end of the second steel pipe and the end of the third steel pipe abut against the pipe wall of the first steel pipe to form an X-shaped cross joint. An upper gusset plate and a lower gusset plate are arranged on the upper edge and the lower edge of the crossed joint of the first steel pipe, the second steel pipe and the third steel pipe respectively, the upper gusset plate is fixedly connected with the first steel pipe, the second steel pipe and the third steel pipe respectively, and the lower gusset plate is fixedly connected with the first steel pipe, the second steel pipe and the third steel pipe respectively. The connecting structure is simple in form and convenient to manufacture, cast steel joints are not needed, the manufacturing process requirement is lowered, the joint manufacturing cost is lowered, and the manufacturing efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of building structures, and in particular to a steel pipe X-shaped cross node connection structure. Background Art

[0002] At present, the use of spatial grid steel structures in the field of building structures is increasing, and new requirements have been put forward for the economy, production efficiency and special use scenarios of components. In some public buildings, the canopy structures and roof structures of stadium buildings often use a single-layer spatial grid formed by the intersection of rectangular steel pipes. For this X-shaped cross grid, the connection nodes are usually made of cast steel or internal partitions. However, steel castings generally use a large amount of steel, have a high unit price, and a long production cycle, which is not conducive to widespread use in the structural field. As for the internal partition node form, in most cases, the cross grid rods are oblique, the node production is difficult, and the quality of the partition welds is not easy to meet the design requirements.

[0003] Therefore, in response to the above technical problems, how to reduce the manufacturing difficulty of node connection and improve the manufacturing efficiency while ensuring the quality and safety of the structure is a technical problem that technical personnel in this field need to solve. Utility Model Content

[0004] The purpose of the present application is to provide a steel pipe X-shaped cross node connection structure, which has a simple structure and is easy to manufacture. It does not require cast steel nodes, reduces manufacturing process requirements, reduces node manufacturing costs, and improves manufacturing efficiency.

[0005] To achieve the above-mentioned purpose, the present application provides a steel pipe X-shaped cross node connection structure, including a continuous first steel pipe, a second steel pipe and a third steel pipe respectively located on both sides of the first steel pipe, the ends of the second steel pipe and the third steel pipe are abutted against the pipe wall of the first steel pipe to form an X-shaped cross node, and the upper edges and lower edges of the intersection nodes of the first steel pipe, the second steel pipe and the third steel pipe are respectively provided with upper node plates and lower node plates, the upper node plates are respectively fixedly connected to the first steel pipe, the second steel pipe and the third steel pipe, and the lower node plates are respectively fixedly connected to the first steel pipe, the second steel pipe and the third steel pipe.

[0006] Preferably, the first steel tube, the second steel tube and the third steel tube are rectangular tubes of the same specifications, and the aspect ratio of the rectangular tube cross section is greater than three.

[0007] Preferably, the upper node plate is a whole plate structure and contacts the upper walls of the first steel pipe, the second steel pipe and the third steel pipe respectively. The side edges of the upper node plate extend in a direction parallel to the upper wall of the first steel pipe or the second steel pipe or the third steel pipe and protrude from the four blank areas of the X-shaped cross node.

[0008] Preferably, the upper node plate is fixedly welded to the upper walls of the first steel pipe, the second steel pipe and the third steel pipe respectively, and the lower node plate is fixedly welded to the lower walls of the first steel pipe, the second steel pipe and the third steel pipe respectively.

[0009] Preferably, the number of the upper node plates is four, and they are respectively located in four blank areas of the X-shaped cross node, and the two side edges of the upper node plate are respectively fixedly connected to the pipe walls of two adjacent steel pipes.

[0010] Preferably, the upper node plate is a whole plate structure, and the overlapping areas of the upper node plate and the upper tube walls of the first steel pipe, the second steel pipe and the third steel pipe are removed to form the upper node plate corresponding to the four blank areas of the X-shaped cross node.

[0011] Preferably, the upper surface of the upper node plate is flush with the upper wall surface of the first steel pipe, and the side edge of the upper node plate abuts against the side wall of the steel pipe and is fixed by welding.

[0012] Preferably, the lower node plate and the upper node plate are symmetrically arranged at the lower edge with respect to the first steel pipe.

[0013] Preferably, side node plates connecting the upper node plate and the lower node plate are arranged in two opposite blank areas of the X-shaped cross node.

[0014] Preferably, the two opposite side node plates are symmetrically arranged about the X-shaped cross node to improve the node connection stiffness and bearing capacity.

[0015] Compared with the prior art, the technical solution provided by this application has at least the following beneficial effects:

[0016] The present application sets an upper node plate and a lower node plate at the X-shaped cross node of the steel pipe, the upper node plate and the lower node plate are respectively located at the upper edge and the lower edge of the steel pipe, and are respectively fixedly connected to the first steel pipe, the second steel pipe and the third steel pipe, thereby forming a stable connection structure to ensure the quality and safety of the structure. At the same time, the structure is simple and easy to manufacture, and there is no need to use cast steel nodes, which reduces the manufacturing process requirements, reduces the node manufacturing cost, and improves the manufacturing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0018] Figure 1A schematic diagram of a steel pipe X-shaped cross node connection structure provided in an embodiment of the present application;

[0019] Figure 2 A cross-sectional view of a first arrangement of an upper node plate and a lower node plate provided in an embodiment of the present application;

[0020] Figure 3 A cross-sectional view of a second arrangement of the upper node plate and the lower node plate provided in an embodiment of the present application;

[0021] Figure 4 A schematic diagram of the side node plate configuration structure provided in an embodiment of the present application;

[0022] Figure 5 This is a cross-sectional view of the side node plate setting method provided in an embodiment of the present application.

[0023] In the figure: 1-first steel pipe; 2-second steel pipe; 3-third steel pipe; 4-upper node plate; 5-lower node plate; 6-side node plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions 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 are within the scope of protection of this application.

[0025] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] Please refer to Figure 1 In this embodiment, a steel pipe X-shaped cross node connection structure is provided, which is generally composed of three steel pipes to form an X-shaped cross structure. Specifically, the first steel pipe 1 is a continuous steel pipe, and the second steel pipe 2 and the third steel pipe 3 can be two separate steel pipes, or a continuous steel pipe is cut from the middle to form the second steel pipe 2 and the third steel pipe 3.

[0028] Furthermore, the second steel tube 2 and the third steel tube 3 are respectively located on both sides of the first steel tube 1, and the ends of the second steel tube 2 and the third steel tube 3 are in contact with the tube wall of the first steel tube 1. It should be noted that for different types of steel tubes, the shapes of the ends of the second steel tube 2 and the third steel tube 3 may be different. For example, when the steel tube is a rectangular tube, in order to form an X-shaped cross node, it is necessary to set the ends of the second steel tube 2 and the third steel tube 3 as inclined surfaces, so as to be in contact with and fit with the closure of the first steel tube 1; if the steel tube is a circular tube or other structure, the ends of the second steel tube 2 and the third steel tube 3 need to adapt to the shape of the tube wall of the first steel tube 1, so as to achieve contact and fit to form an X-shaped cross node.

[0029] An upper node plate 4 and a lower node plate 5 are respectively arranged at the upper and lower edges of the X-shaped cross node of the first steel tube 1, the second steel tube 2 and the third steel tube 3. The upper node plate 4 is respectively fixedly connected to the first steel tube 1, the second steel tube 2 and the third steel tube 3, and the lower node plate 5 is respectively fixedly connected to the first steel tube 1, the second steel tube 2 and the third steel tube 3, thereby forming a stable X-shaped cross node. At the same time, the first steel tube 1, the second steel tube 2 and the third steel tube 3 can also be welded and fixed at the abutting position, and the fixing method is simple and convenient.

[0030] In summary of the above embodiments, the present application sets an upper node plate 4 and a lower node plate 5 at the X-shaped cross node of the steel pipe, and the upper node plate 4 and the lower node plate 5 are respectively located at the upper edge and the lower edge of the steel pipe, and are respectively fixedly connected to the first steel pipe 1, the second steel pipe 2 and the third steel pipe 3, thereby forming a stable connection structure to ensure the quality and safety of the structure. At the same time, the structural form is simple and convenient to manufacture, and there is no need to use cast steel nodes, which reduces the manufacturing process requirements, reduces the node manufacturing cost, and improves the manufacturing efficiency.

[0031] It is pointed out above that the steel tube can be a rectangular tube or a circular tube, etc., and the present application takes a rectangular tube as an example. The first steel tube 1, the second steel tube 2 and the third steel tube 3 are rectangular tubes of the same specifications, and the aspect ratio of the rectangular tube section is usually greater than three. Of course, for rectangular tubes with other aspect ratios, they are also applicable to the connection structure of the present application, and therefore also fall within the protection scope of the present application.

[0032] In one embodiment, the upper node plate 4 is a whole plate-like structure, please refer to Figure 1 and Figure 2 The upper node plate 4 can cover the X-shaped intersection nodes of the three steel pipes. At the same time, there is a partial plate surface structure on the upper node plate 4 that can correspond to and contact the upper walls of the first steel pipe 1, the second steel pipe 2 and the third steel pipe 3, so that the upper node plate 4 is fixedly connected to the first steel pipe 1, the second steel pipe 2 and the third steel pipe 3 by welding or bolt connection or other methods, thereby forming a stable connection structure.

[0033] Also, please refer to Figure 1 and Figure 2 The side of the upper node plate 4 also extends in a direction parallel to the three steel pipes, so that the upper node plate 4 can protrude in the four blank areas of the X-shaped cross node. The lower node plate 5 is symmetrically arranged with the upper node plate 4 and is located at the lower edge of the steel pipe. For the arrangement of the lower node plate 5, please refer to the upper node plate 4. The two are only different in position, which will not be repeated here.

[0034] As for the fixing method of the upper node plate 4 and the lower node plate 5, the upper node plate 4 is fixedly welded or bolted to the upper walls of the first steel pipe 1, the second steel pipe 2 and the third steel pipe 3, respectively, and the lower node plate 5 is fixedly welded or bolted to the lower walls of the first steel pipe 1, the second steel pipe 2 and the third steel pipe 3, respectively. Of course, the fixing methods include but are not limited to fixed welding and bolt connection, which will not be described in detail here.

[0035] In another embodiment, the number of upper node plates 4 may be four, and the four upper node plates 4 are respectively located in four blank areas of the X-shaped cross node. In other words, based on the first embodiment, the area where the entire upper node plate 4 overlaps with the steel pipe may be removed, leaving only four upper node plates 4 corresponding to the blank areas.

[0036] Alternatively, the upper node plate is a whole plate structure, and the overlapping areas of the upper node plate 4 and the upper walls of the first steel tube 1, the second steel tube 2, and the third steel tube 3 are removed to form an upper node plate 4 corresponding to the four blank areas of the X-shaped cross node.

[0037] On this basis, the four upper node plates 4 correspond to four blank areas respectively, and at the same time, the side edges of the upper node rods need to be fixedly connected to the tube walls of the two steel pipes, thereby forming a stable connection structure. Then on the basis of the four upper node plates 4, two of the upper node plates 4 are fixedly connected to the tube walls of the first steel pipe 1 and the second steel pipe 2, while the other two upper node plates 4 are fixedly connected to the tube walls of the first steel pipe 1 and the third steel pipe 3. Since multiple upper node plates 4 are arranged in the blank areas of the X-shaped cross nodes, the upper surface of the upper node plates 4 can be made flush with the upper wall surface of the first steel pipe 1, and naturally it is also flush with the upper wall surfaces of the second steel pipe 2 and the third steel pipe 3, thereby reducing the thickness of the connection structure at the X-shaped cross node. For details, please refer to Figure 3 The side edge of the upper node plate 4 abuts against the side wall of the steel pipe and is welded and fixed.

[0038] Regarding the setting method of the upper node plate 4 in the second embodiment, the lower node plate 5 and the upper node plate 4 can also be symmetrically set and located at the lower edge of the steel pipe. For the setting method of the lower node plate 5, please refer to the upper node plate 4. The two are only different in position and will not be repeated here.

[0039] Also, please refer to Figure 4 and Figure 5 In the two blank areas opposite to the X-shaped cross node, a side node plate 6 connecting the upper node plate 4 and the lower node plate 5 is arranged. The side node plate 6 can be arranged in one set of opposite blank areas, or in both sets of opposite blank areas. And the two opposite side node plates 6 are arranged symmetrically about the X-shaped cross node to improve the node connection stiffness and bearing capacity, thereby improving the connection effect of the connection structure.

[0040] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0041] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A steel pipe X-shaped cross node connection structure, characterized in that: It includes a continuous first steel pipe, a second steel pipe and a third steel pipe respectively located on both sides of the first steel pipe, the ends of the second steel pipe and the third steel pipe are abutted against the pipe wall of the first steel pipe to form an X-shaped cross node, and the upper edges and lower edges of the cross node of the first steel pipe, the second steel pipe and the third steel pipe are respectively provided with an upper node plate and a lower node plate, the upper node plate is respectively fixedly connected to the first steel pipe, the second steel pipe and the third steel pipe, and the lower node plate is respectively fixedly connected to the first steel pipe, the second steel pipe and the third steel pipe.

2. The steel pipe X-shaped cross node connection structure according to claim 1, characterized in that: The first steel tube, the second steel tube and the third steel tube are rectangular tubes with the same specifications, and the aspect ratio of the rectangular tube cross section is greater than three.

3. The steel pipe X-shaped cross node connection structure according to claim 1, characterized in that: The upper node plate is a whole plate structure and contacts the upper walls of the first steel pipe, the second steel pipe and the third steel pipe respectively. The side edges of the upper node plate extend in a direction parallel to the upper wall of the first steel pipe, the second steel pipe or the third steel pipe and protrude from the four blank areas of the X-shaped cross node.

4. The steel pipe X-shaped cross node connection structure according to claim 3, characterized in that: The upper node plates are fixedly welded to the upper walls of the first steel pipe, the second steel pipe and the third steel pipe respectively, and the lower node plates are fixedly welded to the lower walls of the first steel pipe, the second steel pipe and the third steel pipe respectively.

5. The steel pipe X-shaped cross node connection structure according to claim 1, characterized in that: There are four upper node plates, which are respectively located in four blank areas of the X-shaped cross node. Two side edges of the upper node plate are respectively fixedly connected to the pipe walls of two adjacent steel pipes.

6. The steel pipe X-shaped cross node connection structure according to claim 1, characterized in that: The upper node plate is a whole plate structure, and the overlapping areas of the upper node plate and the upper tube walls of the first steel pipe, the second steel pipe and the third steel pipe are removed to form the upper node plate corresponding to the four blank areas of the X-shaped cross node.

7. The steel pipe X-shaped cross node connection structure according to claim 5, characterized in that: The upper surface of the upper node plate is flush with the upper wall surface of the first steel pipe, and the side edge of the upper node plate abuts against the side wall of the steel pipe and is welded and fixed.

8. The steel pipe X-shaped cross node connection structure according to claim 3 or 5, characterized in that: The lower node plate and the upper node plate are symmetrically arranged at the lower edge with respect to the first steel pipe.

9. The steel pipe X-shaped cross node connection structure according to claim 8, characterized in that: In two blank areas opposite to the X-shaped cross node, side node plates connecting the upper node plate and the lower node plate are arranged.

10. The steel pipe X-shaped cross node connection structure according to claim 9, characterized in that: The two opposite side node plates are symmetrically arranged about the X-shaped cross node to improve the node connection stiffness and bearing capacity.

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