A high bearing capacity net rack support node structure convenient to install

Abstract

The application relates to a high-load-bearing net rack support node structure convenient to install, which comprises a concrete column formwork, a support column steel pipe, support adjusting steel bars, adjusting screw rods and a shear ring plate; the concrete column formwork is open at the upper end and the inner side is used for pouring a concrete column; the support column steel pipe is arranged at the inner side of the concrete column formwork and the lower end of the support column steel pipe extends into the concrete column; the support adjusting steel bars are connected to the lower end of the support column steel pipe and pass through the concrete column formwork, and are used for adjusting the bottom positioning of the support column steel pipe; the adjusting screw rods are connected to the support column steel pipe at positions close to the upper end of the concrete column formwork, the adjusting screw rods pass through the concrete column formwork, and are used for adjusting the top positioning of the support column steel pipe; and the shear ring plate is arranged at the top of the support column steel pipe corresponding to the concrete column; the net rack support node structure directly transmits force, has high bearing capacity, is simple to construct, can meet the structural stress requirement, and is convenient to install on site.

Description

Technical Field

[0001] This invention relates to the field of building structures, and more specifically to a high-load-bearing space frame support node structure that is easy to install. Background Technology

[0002] The increasing demand for column-free, large-space structures necessitates the use of large-span structural forms. Space frame structures, due to their good integrity, direct force transmission, low cost, convenient construction, and ability to span large distances, are frequently used in conjunction with supporting concrete columns in large-span spatial structures. As connecting components to the underlying concrete, space frame supports, according to the "Technical Specification for Spatial Grid Structures" (JGJ7-2010), must possess sufficient strength and stiffness, and should not fail before the members and other nodes under load, making them particularly important components. The construction of support nodes should ensure reliable force transmission, simple connections, and compliance with calculation assumptions. Conventional space frame support nodes consist of anchor plates, anchor bolts, transition plates, vertical plates, and support node spheres. Node design must consider the strength of each plate and the connection design between plates. For nodes with large support reactions, the design of anchor plates, anchor bolts, and welds may not be feasible, and the positioning error of the anchor plates is often large, resulting in insufficient fit with the supporting concrete columns, and instances of the anchor plates detaching from the underlying concrete columns frequently occur. Summary of the Invention

[0003] Based on the above description, the present invention provides a high-bearing capacity space frame support node structure that is easy to install. Under the premise of ensuring that the support reaction force is reliably transmitted to the supporting concrete column, it achieves the goals of convenient construction, improved efficiency and cost saving.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0005] A high-load-bearing capacity space frame support node structure that is easy to install includes concrete column formwork, support column steel pipe, support and adjustment reinforcement bars, adjustment screws and shear ring plate;

[0006] The concrete column formwork has an opening at the top and its inner side is used for pouring concrete columns.

[0007] The support column steel pipe is set inside the concrete column formwork and its lower end extends into the concrete column.

[0008] The supporting adjustment steel bar is connected to the lower end of the support column steel pipe and passes through the concrete column formwork, and is used to adjust the bottom positioning of the support column steel pipe.

[0009] The adjusting screw is connected to the support column steel pipe near the upper end of the concrete column formwork. The adjusting screw passes through the concrete column formwork and is used to adjust the top positioning of the support column steel pipe.

[0010] The shear ring plate is installed at the top of the concrete column corresponding to the support column steel pipe.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0012] The high-load-bearing capacity space frame support node structure provided in this application offers more reliable force transmission and requires fewer plates compared to the methods recommended in the specifications. The plates are prefabricated and assembled in the factory, reducing on-site construction work. This significantly improves installation accuracy, eliminates the need for pre-embedded column anchor bolts, reduces construction difficulty, and streamlines the construction process. The traditional installation procedure for steel pipe columns involves pouring concrete to the bottom of the steel pipe, installing anchor plates, welding the steel pipe to the anchor plates after the concrete column reaches a certain strength, and finally pouring concrete again to the design elevation. This invention utilizes supporting and adjusting reinforcing bars and adjusting screws to position and fix the support steel pipe, eliminating the need for anchor plates. Construction can be carried out continuously, reducing the construction period. The space frame support node structure of this invention provides direct force transmission, high load-bearing capacity, and simple construction, meeting both structural stress requirements and facilitating on-site installation.

[0013] Based on the above technical solution, the present invention can be further improved as follows.

[0014] Furthermore, the upper surface of the shear ring plate is flush with the upper end face of the concrete column.

[0015] Furthermore, the supporting and adjusting reinforcing bars are in the shape of a "well" and the lower end of the support column steel pipe is located inside the middle opening of the supporting and adjusting reinforcing bars and is welded and fixed. The outer end of the supporting and adjusting reinforcing bars passes through the concrete column formwork, and the end of the supporting and adjusting reinforcing bars extending out of the concrete column formwork is connected to a bottom adjusting nut.

[0016] Furthermore, the adjusting screw is in the shape of a "well" and the support column steel pipe is located inside the middle opening of the adjusting screw and welded and fixed. The outer end of the adjusting screw passes through the concrete column formwork, and the end of the adjusting screw extending out of the concrete column formwork is connected to a top adjusting nut.

[0017] Furthermore, the outer wall of the support column steel pipe is welded with multiple studs, all of which are located inside the concrete column.

[0018] Furthermore, a welding ball is welded to the upper end of the support column steel pipe.

[0019] Furthermore, the support column steel pipe, the welded ball, and the shear ring plate are connected by equal-strength welding.

[0020] Furthermore, the length of the support column steel pipe extending into the concrete column is not less than 2.5 times the diameter of the support column steel pipe. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a high-load-bearing capacity space frame support node structure that is easy to install, provided by an embodiment of the present invention.

[0022] Figure 2 for Figure 1 AA section view;

[0023] Figure 3 for Figure 1 BB section view;

[0024] Figure 4 This is a schematic diagram of the shear ring plate.

[0025] Figure 5 This is a diagram illustrating the installation of the gasket. Detailed Implementation

[0026] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0028] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90° or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0029] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediary element. In the following embodiments, "connection" should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have the transmission of electrical signals or data between them.

[0030] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0031] like Figure 1-5 As shown, this application provides a high-bearing capacity space frame support node structure that is easy to install, which includes a concrete column formwork 10, a support column steel pipe 20, a support adjustment steel bar 30, an adjustment screw 40, and a shear ring plate 50.

[0032] The concrete column formwork 10 is a rectangular frame structure with slabs on its sides, an opening at the top, and the inner side for pouring concrete columns 110.

[0033] The support column steel pipe 20 is installed inside the concrete column formwork 10, with its lower end extending into the concrete column 110. The lower end of the support column steel pipe 20 is sealed with a sealing plate 23.

[0034] The length of the support column steel pipe 20 extending into the concrete column 110 is not less than 2.5 times the diameter of the support column steel pipe 20, ensuring that the internal force of the support column steel pipe is reliably transmitted to the concrete column 110.

[0035] More preferably, the outer wall of the support column steel pipe 20 is welded with a plurality of studs 21, all of which are located inside the concrete column 110. The studs 21 are distributed in layers in the vertical direction and are evenly distributed at intervals in the circumferential direction of the support column steel pipe 20, thereby effectively enhancing the connection between the support column steel pipe 20 and the concrete column 110.

[0036] The supporting adjustment steel bar 30 is connected to the lower end of the support column steel pipe 20 and passes through the concrete column formwork 10, and is used to adjust the bottom positioning of the support column steel pipe 20.

[0037] Specifically, the supporting and adjusting steel bar 30 is in the shape of a "well". The lower end of the support column steel pipe 20 is located inside the middle opening of the supporting and adjusting steel bar 30 and is welded and fixed. The outer end of the supporting and adjusting steel bar 30 passes through the concrete column formwork 10. The end of the supporting and adjusting steel bar 30 extending out of the concrete column formwork 10 is connected to a bottom adjusting nut 31.

[0038] The adjusting screw 40 is connected to the support column steel pipe 20 near the upper end of the concrete column formwork 10. The adjusting screw 40 passes through the concrete column formwork 10 and is used to adjust the top positioning of the support column steel pipe 20.

[0039] Specifically, the adjusting screw 40 is in the shape of a "well" and the support column steel pipe 20 is located inside the middle opening of the adjusting screw 40 and is welded and fixed. The outer end of the adjusting screw 40 passes through the concrete column formwork 10 and the end of the adjusting screw 40 extending out of the concrete column formwork 10 is connected to the top adjusting nut 41.

[0040] Understandably, in order to ensure a stable connection between the bottom adjusting nut 31 and the top adjusting nut 41, a washer 22 is connected to the side of both near the support column steel pipe 20.

[0041] By adopting the above structural design, the bottom position of the support column steel pipe 20 can be controlled by adjusting the tightness of the top adjusting nut 31 and selecting the position of the supporting adjusting steel bar 30. The top position of the support column steel pipe 20 can be controlled by adjusting the tightness of the top adjusting nut 41 and selecting the position of the supporting adjusting steel bar 30, thereby realizing the adjustment of the entire support column steel pipe 20 to the design position.

[0042] The shear ring plate 50 is disposed on the top of the support column steel pipe 20 corresponding to the concrete column 110. The upper surface of the shear ring plate 50 is flush with the upper end face of the concrete column 110, which can improve the ability of the support column steel pipe 20 to transmit shear force and axial force to the concrete column 110.

[0043] Preferably, a welded ball 60 is welded to the upper end of the support column steel pipe 20. The upper node ball of the support column steel pipe 20 is the welded ball 60. The welded ball 60 serves as the upper node to connect the space frame members 61, thereby constructing the entire space frame structure. The welded ball 60 can be assembled by on-site welding, which can reduce the weight of the assembly formed by the support column steel pipe 20 and the studs 21, facilitate the correction of installation errors, and improve the tolerance of space frame installation.

[0044] The support column steel pipe 20, the welded ball 60 and the shear ring plate 50 are connected by equal-strength welding, and it is only necessary to verify the bearing capacity of the support column steel pipe 20 and the welded ball 60.

[0045] Compared to traditional space frame support nodes, the node structure of this invention has fewer structural plates and eliminates the need for inter-plate connection design. This results in more direct force transmission, less design verification work, and fewer factors controlling the node's bearing capacity, significantly improving the shear, bending, and vertical bearing capacity of the support node. Except for the welded ball, other support components can be welded into assemblies in the factory, eliminating the need for on-site assembly. These assemblies are integrally cast with the concrete column, ensuring a tight connection and faster, more precise, and shorter construction period. This invention utilizes a lower grid-shaped support that also acts as adjusting reinforcement and an upper grid-shaped adjusting screw for positioning and fixing, eliminating the need for anchor plates. Construction can be continuous, further reducing the construction period. Compared to the various support node types in the "Technical Specification for Spatial Grid Structures" (JGJ7-2010), the support node of this invention features direct force transmission, high bearing capacity, and simple construction, meeting both structural stress requirements and facilitating on-site installation.

[0046] The above description is only a preferred embodiment of the present invention and is 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 within the protection scope of the present invention.

Claims

1. A high-load-bearing capacity space frame support node structure that is easy to install, characterized in that, This includes concrete column formwork, support column steel pipes, support and adjustment reinforcing bars, adjustment screws, and shear ring plates; The concrete column formwork has an opening at the top and its inner side is used for pouring concrete columns. The support column steel pipe is set inside the concrete column formwork and its lower end extends into the concrete column. The supporting adjustment steel bar is connected to the lower end of the support column steel pipe and passes through the concrete column formwork, and is used to adjust the bottom positioning of the support column steel pipe. The adjusting screw is connected to the support column steel pipe near the upper end of the concrete column formwork. The adjusting screw passes through the concrete column formwork and is used to adjust the top positioning of the support column steel pipe. The shear ring plate is installed at the top of the concrete column corresponding to the support column steel pipe.

2. The easy-to-install high-bearing-capacity space frame support node structure according to claim 1, characterized in that, The upper surface of the shear ring plate is flush with the upper end face of the concrete column.

3. The easy-to-install high-bearing-capacity space frame support node structure according to claim 1, characterized in that, The supporting and adjusting steel bars are in the shape of a "well". The lower end of the support column steel pipe is located inside the middle opening of the supporting and adjusting steel bars and is welded and fixed. The outer end of the supporting and adjusting steel bars passes through the concrete column formwork. The end of the supporting and adjusting steel bars extending out of the concrete column formwork is connected to a bottom adjusting nut.

4. The easy-to-install high-bearing-capacity space frame support node structure according to claim 1, characterized in that, The adjusting screw is shaped like a "well". The support column steel pipe is located inside the middle opening of the adjusting screw and is welded and fixed. The outer end of the adjusting screw passes through the concrete column formwork. The end of the adjusting screw that extends out of the concrete column formwork is connected to the top adjusting nut.

5. The easy-to-install high-bearing-capacity space frame support node structure according to claim 1, characterized in that, The outer wall of the support column steel pipe is welded with multiple studs, all of which are located inside the concrete column.

6. The high-load-bearing capacity space frame support node structure for easy installation according to claim 1, characterized in that, The upper end of the support column steel pipe is welded with a welding ball.

7. The easy-to-install high-bearing-capacity space frame support node structure according to claim 6, characterized in that, The support column steel pipe, the welded ball, and the shear ring plate are connected by equal-strength welding.

8. The easy-to-install high-bearing-capacity space frame support node structure according to claim 1, characterized in that, The length of the steel pipe of the support column extending into the concrete column is not less than 2.5 times the diameter of the steel pipe of the support column.

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