H-shaped rigid connection node for oblique crossing of primary beam and secondary beam

Abstract

The utility model relates to a rigid connection node for oblique crossing of an H-shaped main beam and a secondary beam, which comprises an H-shaped steel secondary beam, an H-shaped steel main beam with an oblique upper flange and a connection node structure, and the connection node structure comprises a connection plate, a right-angle connection piece, a stiffening rib and a bolt, the inclination angle of the H-shaped steel secondary beam is the same as the inclination angle of the upper flange of the H-shaped steel primary beam with the inclined upper flange, the connecting plates are arranged on the two sides of a web of the H-shaped steel secondary beam in parallel, and the connecting plates are welded in a groove in the side, close to the H-shaped steel secondary beam, of the H-shaped steel primary beam with the inclined upper flange. And the connecting plate is fixedly connected with the H-shaped steel secondary beam through the bolt. The utility model designs a specific structure of a skew rigid connection node under the conditions that the main beam and the secondary beam are not at the same elevation, the main beam is a special-shaped beam and the main beam and the secondary beam are not in plane intersection, and successfully solves the problem of skew rigid connection of the H-shaped steel main beam and the H-shaped steel secondary beam with an inclined upper flange.

Description

Technical Field

[0001] The utility model relates to the technical field of rigid connection between secondary H-shaped steel beams and primary H-shaped steel beams in steel structures, and particularly relates to a rigid connection node for an inclined intersection of a primary H-shaped beam and a secondary beam. Background Art

[0002] The prefabricated structure is one of the important directions for the development of building structures in China, which is conducive to the development of building industrialization in China, improves production efficiency, saves energy, and develops green and environment-friendly buildings. At present, most of the connections between primary and secondary steel beams need to be welded or cut on site, which is inconvenient for installation, time-consuming and laborious, and the connection reliability is relatively low. The current codes and atlases in China have specific regulations on the rigid connection nodes of H-shaped primary and secondary beams, but they are only limited to the cases where both the primary and secondary beams are H-shaped beams and the elevations of the primary and secondary beams are at the same elevation. There are no clear regulations on the rigid connection nodes of special-shaped beams and inclined beams that often appear in projects. Summary of the Utility Model

[0003] The utility model aims to solve the deficiencies of the prior art and provides a rigid connection node for an inclined intersection of a primary H-shaped beam and a secondary beam.

[0004] To achieve the above object, the utility model adopts the following technical solutions: A rigid connection node for an inclined intersection of a primary H-shaped beam and a secondary beam, comprising: a secondary H-shaped steel beam, a primary H-shaped steel beam with an inclined upper flange, and a connection node structure. The connection node structure includes: a connecting plate, a right-angle connector, a stiffening rib, and bolts. The inclination angle of the secondary H-shaped steel beam is the same as the inclination angle of the upper flange of the primary H-shaped steel beam with an inclined upper flange. The connecting plates are arranged in parallel on both sides of the web of the secondary H-shaped steel beam. The connecting plates are welded in the groove on the side of the primary H-shaped steel beam with an inclined upper flange close to the secondary H-shaped steel beam. The connecting plates and the secondary H-shaped steel beam are fixedly connected by the bolts.

[0005] Further, the stiffening rib is welded in the groove on the side of the primary H-shaped steel beam with an inclined upper flange away from the secondary H-shaped steel beam.

[0006] Further, the right-angle connector is an angle steel. One side of the right-angle connector is closely attached to the lower flange of the primary H-shaped steel beam with an inclined upper flange, and the other side is closely attached to the web of the secondary H-shaped steel beam. The right-angle connector and the primary H-shaped steel beam with an inclined upper flange and the secondary H-shaped steel beam are fixedly connected by the bolts.

[0007] Further, bolt mounting holes are provided on the web of the secondary H-shaped steel beam, the lower flange of the primary H-shaped steel beam with an inclined upper flange, the connecting plate, and the right-angle connector.

[0008] Furthermore, the upper flange of the H-shaped steel main beam with an inclined upper flange is a steel plate PL207×14, the web of the H-shaped steel main beam with an inclined upper flange is a steel plate PL8×272, the lower flange of the H-shaped steel main beam with an inclined upper flange is a steel plate PL200×14, and the H-shaped steel secondary beam is HI500×250×10×20.

[0009] The beneficial effects of the present utility model are as follows: The present utility model designs a specific structure of an oblique rigid connection node in the case where the main beam and the secondary beam are not at the same elevation, the main beam is a special-shaped beam, and the main beam and the secondary beam do not intersect in a plane, successfully solving the problem of the rigid connection of the H-shaped steel main beam with an inclined upper flange and the H-shaped steel secondary beam in an oblique intersection. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic structural diagram of the present utility model;

[0011] Figure 2 is a side view of the three-dimensional structure of the present utility model;

[0012] Figure 3 is a schematic structural diagram of the H-shaped steel secondary beam;

[0013] Figure 4 is a sectional view of the H-shaped steel main beam with an inclined upper flange;

[0014] Figure 5 is a top view of the H-shaped steel main beam with an inclined upper flange;

[0015] Figure 6 is a schematic structural diagram of the connecting plate;

[0016] Figure 7 is a schematic structural diagram of the right-angle connecting piece;

[0017] Figure 8 is a schematic structural diagram of the connecting nodes at both ends of the H-shaped steel secondary beam;

[0018] In the figure: 1-H-shaped steel secondary beam; 2-H-shaped steel main beam with an inclined upper flange; 3-connecting plate; 4-right-angle connecting piece; 5-stiffening rib; 6-bolt; 7-bolt mounting hole;

[0019] The drawings in the present utility model are all schematic diagrams, and their sizes do not represent actual sizes;

[0020] The following will be described in detail with reference to the embodiments of the present utility model and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0022] As Figures 1 to 8As shown in the figure, a rigid connection node where an H-shaped main beam intersects obliquely with a secondary beam includes: an H-shaped steel secondary beam 1, an H-shaped steel main beam 2 with an inclined upper flange, and a connection node structure. The connection node structure includes: a connecting plate 3, a right-angle connecting piece 4, a stiffening rib 5, and bolts 6. The inclination angle of the H-shaped steel secondary beam 1 is the same as the inclination angle of the upper flange of the H-shaped steel main beam 2 with an inclined upper flange. The connecting plate 3 is arranged in parallel on both sides of the web of the H-shaped steel secondary beam 1, and the connecting plate 3 is welded in the groove on the side of the H-shaped steel main beam 2 with an inclined upper flange close to the H-shaped steel secondary beam 1. The connecting plate 3 and the H-shaped steel secondary beam 1 are fixedly connected by the bolts 6. The connection node structure between the H-shaped steel main beam 2 with an inclined upper flange and the H-shaped steel secondary beam 1 is connected in an oblique intersection manner.

[0023] The stiffening rib 5 is welded in the groove on the side of the H-shaped steel main beam 2 with an inclined upper flange far from the H-shaped steel secondary beam 1. The size of the stiffening rib 5 is determined according to the actual situation.

[0024] The right-angle connecting piece 4 is an angle steel. One side of the right-angle connecting piece 4 is closely attached to the lower flange of the H-shaped steel main beam 2 with an inclined upper flange, and the other side is closely attached to the web of the H-shaped steel secondary beam 1. The right-angle connecting piece 4 and the H-shaped steel main beam 2 with an inclined upper flange, and the H-shaped steel secondary beam 1 are fixedly connected by the bolts 6. Since there is a large difference in the section heights of the main beam and the secondary beam, at the position of the lower flange of the H-shaped steel main beam 2 with an inclined upper flange, a right-angle connecting piece 4 is set to connect the lower flange of the H-shaped steel main beam 2 with an inclined upper flange and the web of the H-shaped steel secondary beam 1 with bolts 6 to enhance the bearing capacity.

[0025] Bolting holes 7 are provided on the web of the H-shaped steel secondary beam 1, the lower flange of the H-shaped steel main beam 2 with an inclined upper flange, the connecting plate 3, and the right-angle connecting piece 4. This facilitates the bolt 6 splicing operation at the construction site.

[0026] The upper flange of the H-shaped steel main beam 2 with an inclined upper flange is a steel plate PL207×14, the web of the H-shaped steel main beam 2 with an inclined upper flange is a steel plate PL8×272, the lower flange of the H-shaped steel main beam 2 with an inclined upper flange is a steel plate PL200×14, and the H-shaped steel secondary beam 1 is HI500×250×10×20.

[0027] The usage steps of the present utility model are as follows: The H-shaped steel main beam 2 with an inclined upper flange is welded by three steel plates in the factory. The connecting plate 3 and the stiffening rib 5 are pre-welded on the H-shaped steel main beam 2 with an inclined upper flange in the factory. Bolt installation holes 7 are pre-provided at the lower flange of the H-shaped steel main beam 2 with an inclined upper flange, the connecting plate 3, and the right-angle connecting piece 4. The above materials are transported to the construction site. According to the construction design elevation, the position of the H-shaped steel main beam 2 with an inclined upper flange is determined, and the H-shaped steel secondary beam 2 is erected so that the bolt installation holes 7 opened on the connecting plate 3 correspond to the bolt installation holes 7 opened on the H-shaped steel secondary beam 1, and they are fixedly connected with bolts 6. The bolt installation holes 7 opened on the right-angle connecting piece 4 are made to correspond to the bolt installation holes 7 opened on the lower flange of the H-shaped steel main beam 2 with an inclined upper flange and the web of the H-shaped steel secondary beam 1, and they are connected with bolts 6, realizing full-bolt connection at the construction site and avoiding on-site welding operations.

[0028] The present utility model has been described exemplarily above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above-mentioned manner. As long as various improvements are made by adopting the method concept and technical solution of the present utility model, or it is directly applied to other occasions without improvement, they are all within the protection scope of the present utility model.

Claims

1. A rigid connection node where the H-shaped main beam intersects obliquely with the secondary beam, characterized in that, Including: The secondary H-shaped steel beam (1), the primary H-shaped steel beam (2) with an inclined upper flange, and a connection node structure. The connection node structure includes: a connection plate (3), a right-angle connector (4), a stiffener (5), and bolts (6). The inclination angle of the secondary H-shaped steel beam (1) is the same as the inclination angle of the upper flange of the primary H-shaped steel beam (2) with an inclined upper flange. The connection plates (3) are arranged in parallel on both sides of the web of the secondary H-shaped steel beam (1), and the connection plates (3) are welded in the groove on the side of the primary H-shaped steel beam (2) with an inclined upper flange close to the secondary H-shaped steel beam (1). The connection plates (3) and the secondary H-shaped steel beam (1) are fixedly connected by the bolts (6).

2. The rigid connection node of an H-shaped main beam and a secondary beam with an oblique intersection according to claim 1, characterized in that, The stiffener (5) is welded in the groove on the side of the primary H-shaped steel beam (2) with an inclined upper flange away from the secondary H-shaped steel beam (1).

3. The rigid connection node of an H-shaped main beam and an obliquely intersecting secondary beam according to claim 2, wherein, The right-angle connector (4) is an angle steel. One side of the right-angle connector (4) is closely attached to the lower flange of the primary H-shaped steel beam (2) with an inclined upper flange, and the other side is closely attached to the web of the secondary H-shaped steel beam (1). The right-angle connector (4) and the primary H-shaped steel beam (2) with an inclined upper flange and the secondary H-shaped steel beam (1) are fixedly connected by the bolts (6).

4. A rigid connection node of an H-shaped main beam and a secondary beam with an oblique intersection according to claim 3, characterized in that, Bolt mounting holes (7) are provided on the web of the secondary H-shaped steel beam (1), the lower flange of the primary H-shaped steel beam (2) with an inclined upper flange, the connection plate (3), and the right-angle connector (4).

5. The rigid connection node of an H-shaped main beam and a secondary beam with an oblique intersection according to claim 4, characterized in that, The upper flange of the primary H-shaped steel beam (2) with an inclined upper flange is a steel plate PL207×14, the web of the primary H-shaped steel beam (2) with an inclined upper flange is a steel plate PL8×272, the lower flange of the primary H-shaped steel beam (2) with an inclined upper flange is a steel plate PL200×14, and the secondary H-shaped steel beam (1) is HI500×250×10×20.

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