Reinforced steel structure node at joint of double-beam beam column
By introducing reinforcement at the steel structure nodes, reinforcement on the beams, and a support frame, a stable triangular support frame is formed, which solves the problems of stability and installation complexity of the steel structure nodes and improves seismic performance and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING UNIVERSITY OF TECHNOLOGY
- Filing Date
- 2025-01-06
- Publication Date
- 2026-05-08
AI Technical Summary
The stability and installation complexity of existing steel structure joints at welded points affect the seismic performance and safety of the structure.
A reinforced steel structure node is adopted at the connection of the double beam and column, including node reinforcement, beam reinforcement, column reinforcement and support frame, which are connected by fastening bolts and long bolts to form a stable triangular support frame and enhance the connection stability.
This improves the connection stability between the double beams and the square steel columns, prevents swaying, distributes stress, and enhances the overall structure's seismic resistance and safety.
Smart Images

Figure CN224213514U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of steel structure joints, and in particular relates to a reinforced steel structure joint at the connection between a double beam and a column. Background Technology
[0002] Steel structures, as a structural form with excellent seismic performance, play an important role in construction. However, as critical connecting components, the seismic performance of joints directly affects the seismic resistance of the entire structure. Improper joint design or poor construction quality can easily lead to brittle failure during earthquakes, thereby compromising the safety of the entire structure.
[0003] The connection between steel structure components typically employs processes such as welding, bolting, and riveting. Therefore, to further enhance the safety of buildings, it is necessary to strengthen the steel structure to improve the stability of the connections between steel structure components. However, existing steel structure connection reinforcement structures still suffer from problems such as complex installation and inability to form a stable supporting structure.
[0004] Therefore, a reinforced steel structure for steel structure joints is very necessary. Utility Model Content
[0005] To address the aforementioned technical problems related to weld seams and stability, this utility model provides a reinforced steel structure node at the connection between double beams and columns.
[0006] The objective of this utility model is achieved through the following technical solution:
[0007] This utility model discloses a reinforced steel structure node for the connection between a double crossbeam and a square steel column. It includes a node reinforcement body, a beam reinforcement body, a column reinforcement body, and a support frame. One end of the node reinforcement body is connected to one side of the square steel column. The node reinforcement body has an internal mounting slot for sliding installation with the ends of the double crossbeams. The connecting ends of the double crossbeams are placed within the mounting slots and contact the side of the square steel column for support. A beam reinforcement body is fitted onto the double crossbeams and slidably installed in cooperation with them. A column reinforcement body is fitted onto the square steel column. Two parallel support frames connect the column reinforcement body and the beam reinforcement body.
[0008] Furthermore, the node reinforcement body includes a main base and fastening bolts. The main base has mounting slots that mate with the ends of the double crossbeams. The double crossbeams are slidably installed in the mounting slots and fixed by fastening bolts. The main base and the square steel column are connected and fixed by long bolts and nuts.
[0009] Furthermore, the double crossbeam is composed of two parallel U-shaped plates with symmetrically arranged vertical plates between them. A cross support plate is set between the two vertical plates at the closed end of the U-shaped plate, and the distance between the two vertical plates is less than the width of the closed end of the U-shaped plate. Two parallel symmetrical I-beams are formed at the open end of the U-shaped plate, and the cross support plate end is connected to the mounting slot of the node reinforcement body.
[0010] Furthermore, the solid reinforcement on the beam consists of two rectangular sleeves connected at one end, forming a U-shaped structure. The rectangular sleeves have slots that slide in conjunction with the two parallel I-beams of the double crossbeams.
[0011] Furthermore, the solidification on the column is a square frame that fits into the square steel column and is fixedly connected by bolts after installation.
[0012] Furthermore, crossbars are added for reinforcement between the beam reinforcement and the node reinforcement on both sides of the double crossbeams.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. When the double crossbeams are installed on one side of the square steel column, a support point can be formed. After the double crossbeams are inserted into the node reinforcement body, one end of the double crossbeams can be supported first. After the node reinforcement body and the double crossbeams are connected and fixed, the double crossbeams can be installed more stably on one side of the square steel column and will not easily shake.
[0015] 2. In this utility model, a crossbar is added between the node reinforcement body on both sides of the double crossbeam and the beam reinforcement body, making the beam reinforcement body more stable, and the force of the bolt holes in the web of the crossbeam is distributed on the crossbar.
[0016] 3. This utility model is used to form a triangular support frame between the square steel column and the double crossbeams by supporting the frame, thereby ensuring the stability of the square steel column and the double steel beams in sequence. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application;
[0018] Figure 2 This is a schematic diagram of the node-reinforced solid structure of Embodiment 1 of this application;
[0019] Figure 3 This is a schematic diagram of the double beam structure of Embodiment 1 of this application;
[0020] Figure 4 This is a three-dimensional structural schematic diagram of Embodiment 2 of this application;
[0021] Figure 5 yes Figure 4 A partially enlarged structural diagram;
[0022] In the diagram: 1 square steel column, 2 double crossbeams, 21 cross support plate, 3 node reinforcement, 31 main base, 32 mounting slots, 33 fastening bolts, 4 beam reinforcement, 5 column reinforcement, 6 support frame, 7 crossbar. Detailed Implementation
[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] Example 1: This utility model discloses a reinforced steel structure node for the connection between a double beam and a column, which is connected between a double beam 2 and a square steel column 1. It includes a node reinforcement 3, a beam reinforcement 4, a column reinforcement 5, and a support frame 6. One end of the node reinforcement 3 is connected to one side of the square steel column 1. The node reinforcement 3 has an installation slot 32 inside that slides with the end of the double beam 2. The connecting end of the double beam 1 is placed in the installation slot 32 and contacts and supports the side of the square steel column 1. The beam reinforcement 4 is fitted on the double beam 2 and slides with it. The column reinforcement 5 is fitted on the square steel column 1. Two parallel support frames 6 are connected between the column reinforcement 5 and the beam reinforcement 4.
[0025] The node reinforcement 3 described in this example is made of steel and includes a main base 31 and fastening bolts 33. The main base 31 has mounting slots 32 that mate with the ends of the double crossbeams 2. The double crossbeams 2 are slidably installed in the mounting slots 32 and contact and support the square steel column 1. They are fixed by the fastening bolts 33, which form a support point when the double crossbeams 2 are about to be installed on one side of the square steel column 1. When the double crossbeams 2 are inserted into the mounting slots 32, they can be supported at one end first. After the node reinforcement 3 is connected and fixed to the double crossbeams 2, the double crossbeams 2 can be installed more stably on one side of the square steel column 1 without easily shaking. The main base 31 and the square steel column 1 are connected and fixed by long bolts and nuts.
[0026] The double crossbeam 2 is composed of two parallel U-shaped plates with symmetrical vertical plates between them. A cross support plate 21 is set between the two vertical plates at the closed end of the U-shaped plate, and the distance between the two vertical plates is less than the width of the closed end of the U-shaped plate. Two parallel symmetrical I-beams are formed at the open end of the U-shaped plate. The end of the cross support plate 21 is connected to the mounting slot 32 of the node reinforcement body 3.
[0027] The solid reinforcement 4 on the beam is made of steel and consists of two rectangular sleeves connected at one end to form a U-shaped structure. The rectangular sleeves have slots that slide in conjunction with the two parallel I-beams of the double crossbeam 2.
[0028] The column reinforcement 5 is made of steel and is a square frame that fits into the square steel column 1. After installation, it is fixedly connected by bolts.
[0029] The beam-mounted solid 4 and column-mounted solid 5 form two points on the surfaces of the square steel column 1 and the double crossbeam 2, respectively. These points are used to form a triangular support frame between the square steel column 1 and the double crossbeam 2 through the support frame 6, thereby ensuring the stability of the square steel column 1 and the double crossbeam 2. The support frame 6 is used to form a triangular frame between the square steel column 1 and the double crossbeam 2, increasing stability.
[0030] Example 2: As Figure 4 , Figure 5 As shown, in this example, a crossbar can be added between the solid body 4 and the node solid body 3 on both sides of the double crossbeam 2 to reduce the stress on the bolt holes and bolts in the web of the double crossbeam 2 and distribute it on the crossbar 7. The tensile force of the crossbar 7 can effectively prevent stress concentration and deformation caused by uneven stress on the web of the double crossbeam 2.
[0031] Components not described in detail in this application are all existing conventional technologies and will not be described further here.
[0032] It is understood that the above specific description of this utility model is only used to illustrate this utility model and is not limited to the technical solutions described in the embodiments of this utility model. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to this utility model to achieve the same technical effect; as long as the use needs are met, they are all within the protection scope of this utility model.
Claims
1. A reinforced steel structural joint at the connection between a double beam and a square steel column, characterized in that: The system includes a node reinforcement body, a beam reinforcement body, a column reinforcement body, and a support frame. One end of the node reinforcement body is connected to one side of the square steel column. The node reinforcement body has an installation slot inside that slides with the ends of the double crossbeams. The connecting ends of the double crossbeams are placed in the installation slots and contact the side of the square steel column for support. A beam reinforcement body that slides with the double crossbeams is fitted on the double crossbeams. A column reinforcement body is fitted on the square steel column. Two parallel support frames connect the column reinforcement body and the beam reinforcement body.
2. The reinforced steel structure node at the connection between double beams and columns according to claim 1, characterized in that: The node reinforcement includes a main base and fastening bolts. The main base has mounting slots that mate with the ends of the double crossbeams. The double crossbeams are slidably installed in the mounting slots and fixed by fastening bolts. The main base and the square steel column are connected and fixed by long bolts and nuts.
3. The reinforced steel structure node at the connection between double beams and columns according to claim 1, characterized in that: The double crossbeam is composed of two parallel U-shaped plates with symmetrical vertical plates between them. A cross support plate is set between the two vertical plates at the closed end of the U-shaped plate, and the distance between the two vertical plates is less than the width of the closed end of the U-shaped plate. Two parallel symmetrical I-beams are formed at the open end of the U-shaped plate. The cross support plate is connected to the mounting slot of the node reinforcement body.
4. The reinforced steel structure node at the connection between double beams and columns according to claim 1, characterized in that: The solid reinforcement on the beam consists of two rectangular sleeves connected at one end, forming a U-shaped structure. The rectangular sleeves have slots that slide in conjunction with the two parallel I-beams of the double crossbeams.
5. The reinforced steel structure node at the connection between double beams and columns according to claim 1, characterized in that: The solid reinforcement on the column is a square frame that fits into the square steel column and is fixedly connected by bolts after installation.
6. The reinforced steel structure node at the connection between double beams and columns according to claim 1, characterized in that: A crossbar is added between the solid reinforcement on the beams and the joint reinforcement on both sides of the double crossbeams for reinforcement.