Fabricated hybrid frame beam-column connecting joint
By creating through holes in the sidewalls of steel pipe columns and inserting longitudinal reinforcement and transverse beams, the prefabricated hybrid frame beam-column connection node solves the problems of long construction cycle, high cost, and difficulty in quality control of traditional steel-concrete composite beam-column nodes. It achieves efficient and low-cost beam-column connection, which is in line with the environmental protection concept of prefabricated buildings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN PLANNING & DESIGN CO LTD
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional steel-concrete composite beam-column joints suffer from problems such as long construction period, high cost, difficulty in quality control, construction environment limitations, and unsightly appearance. In particular, the wet connection method leads to long construction time, increased costs, and greater construction difficulty.
The prefabricated hybrid frame beam-column connection node is adopted. By opening through holes in the side wall of the steel pipe column and inserting longitudinal bars and transverse beams through the through holes, combined with the design of the connection block, a stable connection between the beam and column is achieved, avoiding the disadvantages of wet connection. The method of factory prefabrication and on-site splicing reduces on-site wet work.
It achieves low-cost and high-efficiency beam-column connections, reduces steel consumption, simplifies the construction process, improves construction efficiency, and conforms to the environmental protection concept of prefabricated buildings.
Smart Images

Figure CN224173518U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of beam-column connection nodes, and particularly relates to a prefabricated hybrid frame beam-column connection node. Background Technology
[0002] Beam-column connections are the joints between beams and columns in a building structure, and are a crucial component of the structure's load-bearing capacity and stability. The design and construction requirements of beam-column connections directly affect the safety and service life of the building. The design methods for beam-column connections vary depending on the structural form.
[0003] Traditional reinforced concrete beam-column joints in steel tubular concrete columns mostly use wet connection methods. Wet connection methods have the following disadvantages:
[0004] 1. Long construction period: Wet connection requires re-pouring concrete and waiting for the concrete to cure and set, which increases the construction time and is not conducive to high-speed construction;
[0005] 2. Increased costs: During the wet connection process, the curing and setting of the concrete mixture requires support and fixation, which increases construction costs;
[0006] 3. High difficulty in quality control: The volumetric deformation between the post-cast concrete and the precast component concrete needs to be coordinated, otherwise cracks are likely to occur.
[0007] 4. Construction environment limitations: When the joint space between precast components is small and the reinforcing bars are dense, construction is difficult and vibration is hard to achieve.
[0008] In addition, some traditional steel-concrete composite column-reinforced concrete beam joints feature long corbels on the steel composite column, with the corbels either through-holes or butt-welded to the internal diaphragm of the column, and the longitudinal reinforcement of the reinforced concrete beam lapped with the corbels. This structural form, due to the long corbels at both ends, consumes a large amount of steel. Some traditional steel-concrete composite column-reinforced concrete beam joints also feature reinforcing rings on the column at the joint, with the reinforcing bars anchored into the reinforcing rings. These joints are aesthetically unappealing and may sometimes affect the building's functionality.
[0009] To address the above-mentioned technical problems, this application proposes a prefabricated hybrid frame beam-column connection node. Utility Model Content
[0010] The purpose of this invention is to provide a prefabricated hybrid frame beam-column connection node to solve the problems mentioned in the background art.
[0011] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated hybrid frame beam-column connection node, including a steel pipe column, wherein a first crossbeam and a second crossbeam are provided through the side wall of the steel pipe column, the first crossbeam and the second crossbeam are vertically distributed, longitudinal reinforcement is provided inside the first crossbeam and the second crossbeam, and a plurality of through holes are provided through the side of the steel pipe column, the plurality of through holes are equidistantly distributed on the four sides of the steel pipe column, and the through holes are connected to the corresponding first crossbeam or second crossbeam.
[0012] Preferably, the steel pipe column includes an upper pipe column, a middle pipe column, and a lower pipe column from top to bottom, with the middle pipe column sleeved on the upper and lower pipe columns and assembled and connected.
[0013] Preferably, the through hole is formed on the side wall of the central tube column.
[0014] Preferably, the same side wall of the central tube column has two through holes distributed from top to bottom.
[0015] Preferably, a connecting block is provided between the two through holes on the same side of the central column, and the connecting block is embedded in the first or second crossbeam.
[0016] Preferably, the longitudinal ribs are perpendicularly intersecting and pass through several through holes.
[0017] This utility model has at least the following beneficial effects:
[0018] (1) This utility model provides a prefabricated hybrid frame beam-column connection node, which has a lower cost, no steel brackets, no partitions, and less steel consumption compared with the traditional node system;
[0019] (2) This utility model provides a prefabricated hybrid frame beam-column connection node, with no partitions inside the steel pipe column, making it convenient to pour concrete and easy to pass through the reinforcing bars;
[0020] (3) This utility model provides a prefabricated hybrid frame beam-column connection node with guaranteed structural safety. The steel pipe columns are manufactured in the factory and transported to the site. After hoisting and splicing, only self-compacting concrete needs to be poured on site. The installation and construction efficiency is high, the construction period is fast, and there is less wet work on site, which meets the environmental protection concept of prefabricated buildings. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the through-hole distribution of this utility model;
[0023] Figure 3 This is a three-dimensional schematic diagram of the longitudinal rib distribution of this utility model;
[0024] Figure 4This is a schematic diagram of the longitudinal reinforcement distribution of this utility model.
[0025] In the attached diagram, the following labels are used: 1. Upper column; 2. First crossbeam; 3. Second crossbeam; 4. Lower column; 5. Through hole; 6. Middle column; 7. Connecting block; 8. Longitudinal reinforcement. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0027] Example
[0028] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a technical solution: a prefabricated hybrid frame beam-column connection node, including a steel pipe column, with a first crossbeam 2 and a second crossbeam 3 passing through the side wall of the steel pipe column. The first crossbeam 2 and the second crossbeam 3 are vertically distributed, and longitudinal reinforcement 8 passes through the interior of the first crossbeam 2 and the second crossbeam 3. Several through holes 5 are opened through the side of the steel pipe column, and the several through holes 5 are equidistantly distributed on the four sides of the steel pipe column. The through holes 5 are connected to the corresponding first crossbeam 2 or second crossbeam 3. Specifically, the first crossbeam 2 or the second crossbeam 3 passes through the corresponding through hole 5.
[0029] In this embodiment, the steel pipe columns are manufactured in the factory and transported to the site. After hoisting and splicing, only self-compacting concrete needs to be poured on site. The installation and construction are efficient, the construction period is fast, and there is less wet work on site, which meets the environmental protection concept of prefabricated buildings.
[0030] Furthermore, the steel pipe column includes, from top to bottom, an upper pipe column 1, a middle pipe column 6, and a lower pipe column 4. The middle pipe column 6 is fitted onto the upper pipe column 1 and the lower pipe column 4 and assembled and connected. Specifically, the middle pipe column 6 is fixedly connected to the upper pipe column 1 and the lower pipe column 4.
[0031] In this embodiment, the steel pipe column is assembled from an upper pipe column 1, a middle pipe column 6, and a lower pipe column 4, which facilitates transportation.
[0032] Furthermore, through hole 5 is opened on the side wall of the central tube column 6.
[0033] In this embodiment, the central column 6 is made of thickened steel plate to reduce the impact of the weakening of the load-bearing capacity caused by the opening.
[0034] Furthermore, two through holes 5 are distributed from top to bottom on the same side wall of the central tube column 6.
[0035] In this embodiment, two through holes 5 are provided to facilitate a stable connection between the first crossbeam 2 or the second crossbeam 3 and the steel pipe column.
[0036] Furthermore, a connecting block 7 is provided between the two through holes 5 on the same side of the central tube column 6. Specifically, the connecting block 7 is fixedly connected to the side wall of the central tube column 6, and the connecting block 7 is embedded in the first crossbeam 2 or the second crossbeam 3.
[0037] In this embodiment, the stability of the connection between the first crossbeam 2 or the second crossbeam 3 and the steel pipe column is further improved by the connecting block 7.
[0038] Furthermore, the longitudinal ribs 8 intersect vertically through several through holes 5.
[0039] In this embodiment, the longitudinal reinforcement 8 is used to improve the strength of the connection between the first crossbeam 2 or the second crossbeam 3 and the steel pipe column.
[0040] The working principle and usage process of this utility model: After the utility model is installed, work according to the above implementation method until all working steps are completed.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A prefabricated hybrid frame beam-column connection node, characterized in that, The steel pipe column includes a first crossbeam (2) and a second crossbeam (3) passing through its side wall. The first crossbeam (2) and the second crossbeam (3) are vertically distributed. The first crossbeam (2) and the second crossbeam (3) are internally reinforced with longitudinal ribs (8). The side of the steel pipe column is provided with several through holes (5). The several through holes (5) are equidistantly distributed on the four sides of the steel pipe column. The through holes (5) are connected to the corresponding first crossbeam (2) or second crossbeam (3).
2. The prefabricated hybrid frame beam-column connection node according to claim 1, characterized in that: The steel pipe column consists of an upper pipe column (1), a middle pipe column (6) and a lower pipe column (4) from top to bottom. The middle pipe column (6) is fitted onto the upper pipe column (1) and the lower pipe column (4) and assembled and connected.
3. The prefabricated hybrid frame beam-column connection node according to claim 2, characterized in that: The through hole (5) is opened on the side wall of the central tube column (6).
4. The prefabricated hybrid frame beam-column connection node according to claim 3, characterized in that: The central column (6) has two through holes (5) distributed from top to bottom on the same side wall.
5. A prefabricated hybrid frame beam-column connection node according to claim 4, characterized in that: A connecting block (7) is provided between the two through holes (5) on the same side of the central column (6), and the connecting block (7) is embedded in the first crossbeam (2) or the second crossbeam (3).
6. The prefabricated hybrid frame beam-column connection node according to claim 1, characterized in that: The longitudinal ribs (8) pass through several through holes (5) in a vertically staggered manner.