Small-angle skew connection node for primary and secondary beams of steel structure

Abstract

The utility model discloses a small-angle skew connection node for primary and secondary beams of a steel structure, and belongs to the technical field of buildings. A steel structure primary and secondary beam small-angle oblique crossing connection node is characterized in that a steel structure primary beam (1) and a steel structure secondary beam (2) are connected in a hinged mode, the hinged connection angle of the steel structure primary beam (1) and the steel structure secondary beam (2) is smaller than or equal to 30 degrees, connecting angle steel (3) is arranged between the steel structure primary beam (1) and the steel structure secondary beam (2), and the connecting angle steel (3) is welded to a web of the primary beam (1) through a fillet weld; a connecting plate (4) is arranged between the steel structure secondary beam (2) and the connecting angle steel (3), and the connecting plate (4) is welded on the connecting angle steel (3) through a fillet weld; and a stiffening plate (5) is arranged at the connecting angle steel (3). According to the utility model, the original small welding angle is enlarged, the construction is more convenient, and the connection is more reliable.

Description

Technical Field

[0001] This utility model belongs to the field of building technology and relates to a small-angle oblique connection node for main and secondary beams of steel structure. Background Technology

[0002] In steel structure specifications and related manuals, the main and secondary beams are vertically connected in the design nodes, and hinged connections are achieved through vertical connecting plates and high-strength bolts. However, in industrial buildings, the main and secondary beams often intersect at an angle. When the angle of the intersection is small, there is insufficient construction space for the fillet welds of the connecting plates, making it difficult to guarantee the construction quality. Utility Model Content

[0003] The purpose of this invention is to provide a small-angle oblique connection node for main and secondary beams of steel structures. By combining connecting angle steel and connecting plates, the originally small welding angle can be increased, making construction more convenient and the connection more reliable.

[0004] Technical solution of utility model:

[0005] A small-angle oblique connection node for main and secondary steel beams, wherein the main steel beam and the secondary steel beam are hinged together, characterized in that: the hinged connection angle between the main steel beam and the secondary steel beam is less than or equal to 30 degrees, and a connecting angle steel is provided between the main steel beam and the secondary steel beam, the connecting angle steel being welded to the web of the main steel beam by fillet weld; a connecting plate is provided between the secondary steel beam and the connecting angle steel, the connecting plate being welded to the connecting angle steel by fillet weld and fixedly connected to the secondary steel beam by high-strength bolts.

[0006] Furthermore, stiffening plates are provided at the connecting angle steel.

[0007] The beneficial effects of this utility model are as follows: This novel steel structure main and secondary beam small-angle oblique connection node changes the separate connection plate to a connection angle steel plus connection plate structure. The connection plate is welded to the connection angle steel, and the connection angle steel is welded to the web of the main beam, which increases the original small welding angle, making construction more convenient and the connection more reliable. Attached Figure Description

[0008] Figure 1 This is a plan view of the small-angle oblique connection between the main and secondary beams of the steel structure.

[0009] Figure 2 This is an isometric drawing of the small-angle skew connection between the main and secondary beams of the steel structure.

[0010] In the diagram: 1-Main steel beam, 2-Secondary steel beam, 3-Connecting angle steel, 4-Connecting plate, 5-Stiffening plate, 6-High-strength bolt. Detailed Implementation

[0011] The embodiments are further described below with reference to the accompanying drawings.

[0012] Figure 1 and Figure 2 As shown, a small-angle oblique connection node for main and secondary beams of a steel structure is provided, in which the main beam 1 and the secondary beam 2 of the steel structure are hinged together. The hinged connection angle between the main beam 1 and the secondary beam 2 of the steel structure is less than or equal to 30 degrees, and a connecting angle steel 3 is provided between the main beam 1 and the secondary beam 2 of the steel structure. The connecting angle steel 3 is welded to the web of the main beam 1 by fillet weld. A connecting plate 4 is provided between the secondary beam 2 of the steel structure and the connecting angle steel 3. The connecting plate 4 is welded to the connecting angle steel 3 by fillet weld. To enhance strength, a stiffening plate (5) is provided at the connecting angle steel (3).

[0013] The main steel beam 1 and the secondary steel beam 2 intersect at a relatively small angle to accommodate the installation requirements of process equipment. To avoid the limited construction space between the connecting plate 4 and component 1, the separate connecting plate is replaced with a structure consisting of connecting angle steel 3 and connecting plate 4. The connecting plate 4 is welded to the connecting angle steel 3 via fillet welds, and the connecting angle steel 3 is welded to the web of the main beam 1 via fillet welds. This increases the previously small welding angle, making construction easier and the connection more reliable.

Claims

1. A small-angle skew connection joint of a main girder and a secondary girder of a steel structure, the main girder (1) and the secondary girder (2) of the steel structure being hingedly connected, characterized in that: The main steel beam (1) and the secondary steel beam (2) are hinged together at an angle of less than or equal to 30 degrees and a connecting angle steel (3) is provided between the main steel beam (1) and the secondary steel beam (2). The connecting angle steel (3) is welded to the web of the main beam (1) by fillet weld. A connecting plate (4) is provided between the secondary steel beam (2) and the connecting angle steel (3). The connecting plate (4) is welded to the connecting angle steel (3) by fillet weld and fixedly connected to the secondary steel beam (2) by high-strength bolts (6).

2. A steel structure primary and secondary beam small angle skew connecting joint according to claim 1, characterized in that: A stiffening plate (5) is provided at the connecting angle steel (3).

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