An assembled beam-column joint with diagonal bracing

Abstract

The present invention discloses an assembled beam-column node with an oblique support. Traditional steel support connection nodes are connected by welding, and the node ductility is poor and brittle failure is prone to occur. The structural columns and structural beams of the present invention are connected by upper and lower connecting plates, the node plates are pre-welded to the upper connecting plates, the grooved connecting plates, vertical support plates and horizontal support plates are pre-welded to the rectangular steel pipe supports, and then the various components are connected and fixed by bolts, thereby realizing the assembled connection of three large components. The present invention reduces the difficulty of on-site installation, solves the problem of difficult welding of steel supports in the air, and speeds up the installation progress of construction; at the same time, it reduces the workload of welding, thereby reducing the adverse effects of residual deformation, stress and low-temperature cold brittleness on structural components caused by excessive welding.

Description

Technical Field

[0001] The present invention belongs to the technical field of building structure nodes, and in particular relates to an assembled beam-column node with oblique supports. Background Art

[0002] Diagonal braces are widely used in civil engineering structures as lateral force resisting components, dual-function components for lateral force resisting and energy dissipation, and connecting components. Conventional steel braces are often used as lateral force resisting components to improve the structure's lateral stiffness. Their light weight and high stiffness are highly valued, but currently, few construction methods for diagonal braces are available on the market.

[0003] Traditional steel brace connection nodes typically utilize direct welding or bolt-on welding. While these connections are rigid, they suffer from poor ductility and are prone to brittle failure at welded locations during earthquakes. Furthermore, these traditional steel brace connection nodes require workers to perform welding operations in mid-air, making hoisting, welding, and installation difficult and resulting in poor quality control, significantly impacting construction speed and quality. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, the present invention provides an assembled beam-column node with an oblique support, which has a simple structure and is easy to process and install, thus solving the problem of difficult aerial welding of steel supports.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An assembled beam-column node with oblique support, characterized in that it comprises a vertically arranged structural column and a structural beam, wherein the structural column and the structural beam are fixedly connected by an upper connecting plate and a lower connecting plate;

[0007] The upper connecting plate and the lower connecting plate are both L-shaped structures, and two node plates are welded at right angles inside the upper connecting plate;

[0008] The grooved connecting plate is a right-angled U-shape, and the two flange plates of the grooved connecting plate are arranged on the outside of the node plate; the node plate and the grooved connecting plate are fixedly connected by high-strength bolts;

[0009] A rectangular steel tube support is welded to the web of the trough-type connecting plate; a side plate is provided on each of the two opposite sides of the rectangular steel tube support, and the side plate is welded to the flange plate of the trough-type connecting plate and the side surface of the rectangular steel tube support;

[0010] Two connecting plates are symmetrically arranged on the outside of the side plates and the rectangular steel pipe support to form a rectangular hollow structure. The two connecting plates are fixedly connected by bolts;

[0011] An L-shaped vertical support plate is provided between the rectangular steel tube support and the structural beam. One side of the vertical support plate is bolted to the upper flange of the structural beam, and the other side is welded to the side of the rectangular steel tube support.

[0012] An L-shaped horizontal support plate is provided between the rectangular steel tube support and the structural column. One side of the horizontal support plate is bolted to the side of the structural column, and the other side is welded to the side of the rectangular steel tube support.

[0013] Furthermore, the upper connecting plate and the lower connecting plate are symmetrically arranged on both sides of the upper and lower flanges of the structural beam;

[0014] Furthermore, a stiffening rib II is welded at a right angle inside the lower connecting plate;

[0015] Furthermore, stiffening ribs I are welded between the upper flange and the lower flange of the structural beam, and the stiffening ribs I are symmetrically arranged on both sides of the web of the structural beam.

[0016] Beneficial effects of the present invention:

[0017] This invention proposes a novel steel support connection method. A node plate is pre-welded to the upper connecting plate, and the trough connecting plate, vertical support plate, and horizontal support plate are pre-welded to the rectangular steel tube support. Bolts are then used to secure these components together, achieving an assembled connection of the three major components. This significantly reduces the difficulty of on-site installation, solves the problem of welding steel supports in mid-air, and accelerates construction and installation. It also reduces the welding workload, thereby minimizing the adverse effects of excessive welding on structural components, such as residual deformation, stress, and low-temperature brittleness. Furthermore, this invention is simple in construction, easy to manufacture and process, saves materials and time, and facilitates transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the present invention;

[0019] Figure 2 is a side view of the present invention;

[0020] Figure 3 A top view of the present invention;

[0021] Figure 4 Detailed drawing of support connection;

[0022] Figure 5 This is a schematic diagram of the explosion at the support connection;

[0023] In the figure: 1 is the structural column, 2 is the structural beam, 3 is the upper connecting plate, 4 is the node plate, 5 is the trough connecting plate, 6 is the lower connecting plate, 7 is the rectangular steel pipe support, 8 is the stiffening rib I, 9 is the vertical support plate, 10 is the horizontal support plate, 11 is the connecting plate, 12 is the side plate, and 13 is the stiffening rib II. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to specific embodiments.

[0025] like Figure 1 、 2 As shown, the present invention includes a vertically arranged structural column 1 and a structural beam 2, which are fixedly connected by an upper connecting plate 3 and a lower connecting plate 6. The upper connecting plate 3 and the lower connecting plate 6 are symmetrically arranged on both sides of the upper and lower flanges of the structural beam 2; the structural column 1 is a square steel tube concrete column, and the structural beam 2 is an H-shaped steel beam;

[0026] The upper connecting plate 3 and the lower connecting plate 6 are both L-shaped structures. The upper connecting plate 3 and the lower connecting plate 6 are made of angle steel. Bolt holes are pre-processed on the upper connecting plate 3 and the lower connecting plate 6. Two node plates 4 are welded at right angles inside the upper connecting plate 3. The two node plates 4 are parallel to each other.

[0027] like Figure 5 As shown, the grooved connecting plate 5 is a right-angled U-shape, and the two flange plates of the grooved connecting plate 5 are arranged on the outside of the gusset plate 4; the gusset plate 4 and the grooved connecting plate 5 are fixedly connected by high-strength bolts; bolt holes are processed on the two flange plates of the two gusset plates 4 and the grooved connecting plate 5, and high-strength bolts are passed through the bolt holes to connect and fix the gusset plate 4 and the grooved connecting plate 5;

[0028] like Figure 4 As shown, a rectangular steel tube support 7 is welded to the web of the trough-type connecting plate 5; a side plate 12 is provided on each of two opposite sides of the rectangular steel tube support 7, and the side plate 12 is welded to the flange plate of the trough-type connecting plate 5 and the side surface of the rectangular steel tube support 7;

[0029] Two connecting plates 11 are symmetrically arranged on the outside of the side plates 12 and the rectangular steel tube supports 7 to form a rectangular hollow structure. The two connecting plates 11 are fixedly connected by bolts; the side plates 12 and the rectangular steel tube supports 7 can be enclosed and reinforced; the side plates 12 and the connecting plates 11 can not only make the connection between the grooved connecting plate 5 and the rectangular steel tube supports 7 bear the force evenly to prevent local buckling, but also strengthen the connection between the grooved connecting plate 5 and the rectangular steel tube supports 7 to prevent fracture and damage at the connection;

[0030] An L-shaped vertical support plate 9 is provided between the rectangular steel tube support 7 and the structural beam 2. One side of the vertical support plate 9 is bolted to the upper flange of the structural beam 2, and the other side is welded to the side of the rectangular steel tube support 7.

[0031] An L-shaped horizontal support plate 10 is provided between the rectangular steel tube support 7 and the structural column 1 . One side of the horizontal support plate 10 is bolted to the side of the structural column 1 , and the other side is welded to the side of the rectangular steel tube support 7 .

[0032] The vertical support plate 9 and the horizontal support plate 10 can strengthen the load-bearing of the rectangular steel tube support 7 and prevent the rectangular steel tube support 7 from tilting; the vertical support plate 9 and the horizontal support plate 10 are both bolted at one end and beveled at the other end;

[0033] like Figure 2 As shown, stiffening ribs II13 are welded at right angles inside the lower connecting plate 6, and stiffening ribs II13 can improve the stability and torsional resistance of the component; stiffening ribs I8 are welded between the upper flange and the lower flange of the structural beam 2, and the stiffening ribs I8 are symmetrically arranged on both sides of the web of the structural beam 2, and the stiffening ribs I8 are arranged parallel to the vertical plate surface of the vertical support plate 9.

[0034] The present invention pre-welds the gusset plate to the upper connecting plate, and the trough connecting plate, vertical support plate, and horizontal support plate to the rectangular steel pipe support. Bolts then secure the components together, achieving an assembled connection of the three major components. This significantly reduces the difficulty of on-site installation, solves the problem of welding steel supports in mid-air, and accelerates the construction and installation process. It also reduces the welding workload, thereby minimizing the adverse effects of excessive welding on structural components, such as residual deformation, stress, and low-temperature brittleness. Furthermore, the present invention is simple in structure, easy to manufacture and process, saves materials and time, and facilitates transportation.

[0035] In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0036] The content of the present invention is not limited to the embodiments listed. Any equivalent transformation of the technical solution of the present invention made by ordinary technicians in this field after reading the description of the present invention is covered by the claims of the present invention.

Claims

1. A prefabricated beam-column joint with oblique supports, characterized in that: It comprises a vertically arranged structural column (1) and a structural beam (2), wherein the structural column (1) and the structural beam (2) are fixedly connected via an upper connecting plate (3) and a lower connecting plate (6); The upper connecting plate (3) and the lower connecting plate (6) are both L-shaped structures, and two node plates (4) are welded at right angles inside the upper connecting plate (3); The grooved connecting plate (5) is a right-angled U-shape, and the two flange plates of the grooved connecting plate (5) are arranged on the outside of the node plate (4); the node plate (4) and the grooved connecting plate (5) are fixedly connected by high-strength bolts; A rectangular steel tube support (7) is welded to the web of the trough-shaped connecting plate (5); a side plate (12) is provided on each of two opposite sides of the rectangular steel tube support (7), and the side plate (12) is welded to the flange plate of the trough-shaped connecting plate (5) and the side surface of the rectangular steel tube support (7); Two connecting plates (11) are symmetrically arranged on the outside of the side plates (12) and the rectangular steel pipe support (7) to form a rectangular hollow structure, and the two connecting plates (11) are fixedly connected by bolts; An L-shaped vertical support plate (9) is provided between the rectangular steel tube support (7) and the structural beam (2); one side of the vertical support plate (9) is bolted to the upper flange of the structural beam (2), and the other side is welded to the side of the rectangular steel tube support (7); An L-shaped horizontal support plate (10) is provided between the rectangular steel tube support (7) and the structural column (1); one side of the horizontal support plate (10) is connected to the side of the structural column (1) by bolts, and the other side is connected to the side of the rectangular steel tube support (7) by welding.

2. The assembled beam-column joint with oblique support according to claim 1, characterized in that: The upper connecting plate (3) and the lower connecting plate (6) are symmetrically arranged on both sides of the upper and lower flanges of the structural beam (2).

3. The assembled beam-column joint with oblique support according to claim 2, characterized in that: A stiffening rib II (13) is welded at a right angle position inside the lower connecting plate (6).

4. The assembled beam-column joint with oblique support according to claim 3, characterized in that: Stiffening ribs I (8) are welded between the upper flange and the lower flange of the structural beam (2), and the stiffening ribs I (8) are symmetrically arranged on both sides of the web of the structural beam (2).

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