Diagonal web member node structure of profile steel truss

Abstract

The utility model relates to a section steel truss diagonal web member node structure. The section steel truss diagonal web member node structure comprises an H-shaped diagonal bracket, a bracket reinforcing plate, a chord member, a vertical web member and a reinforcing plate, the vertical web member is vertically arranged on the transversely arranged chord member, the H-shaped inclined bracket is obliquely connected between the vertical web member and the chord member, a stiffening plate is transversely arranged on the vertical web member, a stiffening plate is longitudinally arranged on the chord member, and bracket reinforcing plates are respectively arranged between the H-shaped inclined bracket and the vertical web member and between the H-shaped inclined bracket and the chord member. The truss node is optimized, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to steel structure construction, in particular to a steel truss diagonal web member node structure. Background Art

[0002] In recent years, the domestic demand for large-span roof truss steel structure factory project construction has gradually increased. The traditional typical node design forms of steel trusses are mostly derived from the atlas "Detailed Construction of Steel Structure Nodes for Multi-story and High-rise Civil Buildings". Among them, in the chapter "Connection Structure of Support Diagonal Bars at Frame Nodes", there are many H-shaped steel curved arcs or bent diagonal bar brackets. This node generally has more structural requirements for the curved arc radius and the strengthening of the curved arc section. While ensuring the stress performance of the node structure, it also has extremely high requirements for the quality of component processing. On this basis, consider whether it is possible to optimize the design of a steel truss diagonal web bar node, optimize the processing technology and improve the construction efficiency while ensuring the structural stress, and at the same time conform to the social development form of energy conservation, emission reduction and low-carbon economy. Summary of the invention

[0003] The utility model aims to overcome the defects of the prior art and provide a steel truss diagonal web node structure to solve the problems of low construction efficiency and high construction cost caused by the use of H-shaped steel curved arcs or bent diagonal rod brackets in current construction.

[0004] In order to solve the above technical problems, the utility model is achieved as follows:

[0005] A steel truss diagonal web node structure, characterized in that it comprises an H-shaped diagonal corbel, a corbel reinforcement plate, a chord, a vertical web and a stiffening plate; the vertical web is vertically arranged on a transversely arranged chord, the H-shaped diagonal corbel is obliquely connected between the vertical web and the chord, a stiffening plate is transversely arranged on the vertical web, a stiffening plate is longitudinally arranged on the chord, and corbel reinforcement plates are respectively arranged between the H-shaped diagonal corbel and the vertical web and the chord.

[0006] The diagonal web node structure of a steel truss is characterized in that the vertical webs and the chords are connected by welding, and the butt joint is a full-penetration first-level weld.

[0007] The described steel truss diagonal web member node structure is characterized in that: the H-shaped diagonal bracket is connected to the vertical web member and the chord member by welding, and the butt joint is a full-penetration first-level weld.

[0008] The described steel truss diagonal web node structure is characterized in that the thickness of the stiffening plate is not less than the thickness of the H-shaped diagonal corbel flange plate, and the stiffening plate is connected to the vertical web plate and the chord by welding and adopts double-sided fillet welds.

[0009] The described steel truss diagonal web member node structure is characterized in that the shape of the corbel plus strong plate matches the shape between the H-shaped diagonal corbel and the vertical web member and the chord member, and the thickness of the corbel plus strong plate takes the maximum value of the web plate thickness in the H-shaped diagonal corbel, the chord member and the vertical web member.

[0010] The beneficial effects of the utility model are as follows: It can be seen from the above technical scheme that the present application provides a steel truss diagonal web node structure, the steel structure usage is close, and the overall structural force performance is improved; the difficulty of processing component parts is greatly reduced, the processing technology is optimized, and the production efficiency is improved; compared with traditional nodes, the processing accuracy is improved while ensuring the controllability of the accuracy of on-site assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0012] Figure 1 This is a schematic diagram of the structure of this application;

[0013] Figure 2 It is a schematic diagram of the side view. DETAILED DESCRIPTION

[0014] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application.

[0015] like Figure 1 , 2 As shown: a steel truss diagonal web member node structure, which includes an H-shaped oblique corbel 1, a corbel reinforcement plate 2, a chord 3, a vertical web member 4 and a stiffening plate 5; the vertical web member is vertically arranged on the transversely arranged chord, the H-shaped oblique corbel is obliquely connected between the vertical web member and the chord, a stiffening plate is transversely arranged on the vertical web plate, and a stiffening plate is longitudinally arranged on the chord, and corbel reinforcement plates are respectively arranged between the H-shaped oblique corbel and the vertical web member and the chord.

[0016] The vertical web members and chord members are connected by welding, and the butt joint is a full penetration first-level weld.

[0017] The H-shaped oblique bracket is connected to the vertical web member and the chord member by welding, and the butt joint is a full-penetration first-level weld.

[0018] The thickness of the stiffening plate is not less than the thickness of the H-shaped oblique bracket flange plate. The stiffening plate is connected to the vertical web plate and the chord by welding and is connected by double-sided fillet welds.

[0019] The shape of the corbel plus strong plate matches the shape of the H-shaped oblique corbel and the vertical web member and the chord member, and the thickness of the corbel plus strong plate takes the maximum value of the web plate thickness of the H-shaped oblique corbel, the chord member and the vertical web member.

[0020] The specific implementation steps are as follows:

[0021] This set of diagonal web member node system is mainly composed of 5 components, namely: H-shaped diagonal bracket 1, bracket plus strong plate 2, chord 3, vertical web member 4, stiffening plate 5;

[0022] First, assemble the parts, butt the vertical web member 4 with the chord member 3, and the butt joint requires full penetration of the first-level weld;

[0023] The H-shaped oblique bracket is butted with the chord 3 and the vertical web 4, and the butt joint requires full penetration of the first-level weld;

[0024] The stiffening plate 5 is aligned with the flange position of the H-shaped oblique bracket 1 and assembled. The thickness of the stiffening plate 5 is required to be not less than the flange thickness of the H-shaped oblique bracket 1. The stiffening plate 5 is welded to the chord 3 and the vertical web 4 respectively by double-sided fillet welds.

[0025] The corbel plus stiffening plate 2 is aligned with the web position of the H-shaped oblique corbel, the chord 3 and the vertical web member 4. The thickness of the corbel plus stiffening plate 2 is the maximum thickness of the web of the H-shaped oblique corbel 1, the chord 3 and the vertical web member 4. The corbel plus stiffening plate 2 is welded to the H-shaped oblique corbel 1, the vertical web member 4 and the stiffening plate 5 respectively by double-sided fillet welds.

[0026] This application is to optimize the bending arc section process of the diagonal web member and the corresponding strengthening plate and other measures without weakening the bearing capacity of the original node. The H-shaped bending arc section bracket is cancelled and replaced with an H-shaped straight bracket and the length of the diagonal web member bracket is reduced. The bending arc section is changed to a triangular strengthening plate to simplify the parts processing process, and through finite element simulation comparative analysis, it is ensured that the overall stress and stability of the optimized node are not lower than the original bending arc or bent diagonal web member bracket node.

[0027] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A steel truss diagonal web node structure, characterized in that: It includes an H-shaped oblique corbel, a corbel reinforcement plate, a chord, a vertical web member and a stiffening plate; the vertical web member is vertically arranged on the transversely arranged chord member, the H-shaped oblique corbel is obliquely connected between the vertical web member and the chord member, a stiffening plate is transversely arranged on the vertical web member, and a stiffening plate is longitudinally arranged on the chord member, and corbel reinforcement plates are respectively arranged between the H-shaped oblique corbel and the vertical web member and the chord member.

2. A steel truss diagonal web node structure according to claim 1, characterized in that: The vertical web members and chord members are connected by welding, and the butt joint is a full penetration first-level weld.

3. A steel truss diagonal web node structure according to claim 1, characterized in that: The H-shaped oblique bracket is connected to the vertical web member and the chord member by welding, and the butt joint is a full-penetration first-level weld.

4. A steel truss diagonal web node structure according to claim 1, characterized in that: The thickness of the stiffening plate is not less than the thickness of the H-shaped oblique bracket flange plate. The stiffening plate is connected to the vertical web plate and the chord by welding and is connected by double-sided fillet welds.

5. The diagonal web node structure of a steel truss according to claim 1, characterized in that: The shape of the corbel plus strong plate matches the shape of the H-shaped oblique corbel and the vertical web member and the chord member, and the thickness of the corbel plus strong plate takes the maximum value of the web plate thickness of the H-shaped oblique corbel, the chord member and the vertical web member.

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