A ring beam joint connecting a composite column and a concrete beam

Abstract

This utility model discloses a ring beam joint connecting a composite column and a concrete beam, relating to the field of building construction technology. It aims to solve the technical problem that the seismic anchorage length of current straight anchorage sections of reinforcing bars cannot meet structural requirements. The joint includes a composite column, an outer ring beam, outer ring beam web reinforcement, and inner stirrups. The composite column contains an embedded steel pipe. The outer ring beam is located outside the composite column and consists of two sets of ring-shaped members with gradually changing diameters. Outer stirrups are provided on the outer side of the outer ring beam. The outer ring beam web reinforcement is positioned between the two sets of outer ring beams, and its diameter is the same as the diameter of the outermost ring member. The inner stirrups are installed between the outer ring beam and the outer ring beam web reinforcement. A concrete structural beam is located outside the outer ring beam. This utility model has the advantages of simplifying and maximizing the anchorage structure by adding a ring beam, and facilitating construction.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to a ring beam node connecting a composite column and a concrete beam. Background Technology

[0002] As the most critical connection point in a structural system, beam-column joints play a crucial role in the overall safety and performance of the structure. Traditional reinforced concrete beam-column joints have mature structural designs, but the connection between composite columns and concrete beams is more complex and inconvenient to construct, limiting the widespread adoption of this type of composite column structure. The connection between composite columns and concrete beams is mainly constrained by the fact that the seismic anchorage length of the straight anchorage section of the main longitudinal reinforcement of the concrete beam extending into the steel-concrete composite column cannot meet structural requirements.

[0003] Based on current domestic construction practices, there are generally four ways to address the anchorage length issue: First, the longitudinal reinforcement of the concrete beam is directly passed through the embedded steel pipe. However, when there are many through-reinforcement bars, the opening in the steel pipe becomes very large, significantly affecting the load-bearing capacity of the composite column. Furthermore, pouring concrete inside the pipe is difficult and the construction period is long. Second, the cross-sectional dimensions of the embedded steel pipe are reduced to ensure the required anchorage length for the outer concrete beam reinforcement. However, when the diameter of the steel pipe is too small, it firstly hinders concrete pouring, and secondly, it restricts the load-bearing capacity of the concrete composite column, limiting the maximum development potential of this type of structure. Third... One approach involves welding reinforcing steel plates or corbels to the outer wall of the steel pipe, with the longitudinal reinforcement of the concrete beam directly welded to these plates or corbels. However, this method is highly complex, involves extensive on-site welding, has low construction efficiency, and is costly. Another approach is to use an inner ring beam within the outer frame column of the steel pipe. This solves the problems of reinforcement anchorage and load transfer. However, the inner ring beam reduces the diameter of the steel pipe. When the column connects to multiple beams under heavy loads, the longitudinal reinforcement of the ring beam needs to be increased to ensure load-bearing capacity, leading to complex joints and affecting concrete pouring and reinforcement installation in the joint area. Therefore, we propose a ring beam joint for connecting a composite column to a concrete beam. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a ring beam node for connecting composite columns and concrete beams, so as to solve the technical problem that the current straight anchorage length of steel bars cannot meet the structural requirements.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a ring beam node connecting a composite column and a concrete beam, comprising a composite column, an outer ring beam, and outer ring beam stirrups. The composite column has an embedded steel pipe inside. The outer ring beam is located outside the composite column and is composed of two sets of ring-shaped members with gradually changing diameters. An outer ring beam stirrup is provided on the outer side of the outer ring beam. The outer ring beam stirrup is located between the two sets of outer ring beams, and the diameter of the outer ring beam stirrup is the same as the diameter of the outermost ring member of the outer ring beam. An inner stirrup is installed between the outer ring beam and the outer ring beam stirrup. A concrete structural beam is provided on the outer side of the outer ring beam.

[0006] Preferably, the cross-section of the composite column is square, and the steel pipe embedded in the composite column is centered inside the composite column, and the inner wall of the composite column is provided with longitudinal reinforcement.

[0007] Preferably, the outer ring beam has a C-shaped outer hoop design, and the outer ring beam is sleeved on the outside of the upper and lower sets of outer ring beams. The end of the outer ring beam is placed inside the stacked column after passing through it.

[0008] Preferably, the middle part of the outer ring beam waist reinforcement is semi-circular and the two ends are vertically extended. The extended parts of two adjacent outer ring beam waist reinforcements form an insertion port, and the ends of the concrete structure beam are connected to the insertion port.

[0009] Preferably, the outer ring beam waist reinforcement is sleeved with the outer ring beam longitudinal bottom reinforcement, and the outer ring beam longitudinal bottom reinforcement is square closed, and the outer ring beam longitudinal bottom reinforcement and the outer ring beam waist reinforcement are fixed by binding.

[0010] Preferably, the outer ring beam has longitudinal reinforcement at the end of the outer ring beam stirrups, and the connection ends of the outer ring beam longitudinal reinforcement, the outer ring beam stirrups, and the composite column longitudinal reinforcement are tied and fixed by the composite column stirrups.

[0011] Preferably, the inner hoop of the outer ring beam has end hoop openings at both the upper and lower ends, and an inner hoop opening at the middle of the inner side of the outer ring beam, and the end hoop openings and inner hoop openings are respectively used to fix the outer ring beam body and the outer ring beam waist reinforcement.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The outer ring beam of this utility model is anchored outside the composite column. The ends of the outer ring beam's outer stirrups are inserted into the composite column. When concrete is poured into the composite column, the outer ring beam's outer stirrups can be reinforced a second time. The concrete structural beam is inserted between the outer ring beams, inserted from the opening of the outer ring beam's web reinforcement end, and then reinforced with the longitudinal bottom reinforcement of the outer ring beam, forming multiple anchorages. The arrangement method of the outer ring beam can effectively solve the problem of the seismic anchorage length of the longitudinal reinforcement of the concrete structural beam, and the construction is convenient and will not cause damage to the embedded steel pipe in the composite column.

[0013] 2. The outer ring beam of this utility model is composed of ring parts with different diameters. The outer ring parts are tightly bound by the outer hoop of the outer ring beam, and the inner ring parts are tightly bound by the inner hoop of the outer ring beam. The end hoop of the inner hoop of the outer ring beam is engaged with and positioned to locate the outermost ring part of the outer ring beam, while the inner hoop is engaged with the waist reinforcement of the outer ring beam, so that they form a complete and effective overall structure to ensure structural strength. The structural design of the inner hoop of the outer ring beam reduces the difficulty of assembly and improves construction efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a schematic diagram of the outer ring beam of this utility model; Figure 4 This is a schematic diagram of the outer ring beam web reinforcement of this utility model; Figure 5 This is a schematic diagram of the inner hoop of the outer ring beam of this utility model.

[0015] The labels in the diagram are as follows: 1. Concrete structural beam; 2. Composite column; 3. Steel pipe embedded in composite column; 4. Outer ring beam; 5. Longitudinal reinforcement of outer ring beam; 6. Outer stirrups of outer ring beam; 7. Longitudinal reinforcement of composite column; 8. Stirrups of composite column; 9. Longitudinal bottom reinforcement of outer ring beam; 10. Web reinforcement of outer ring beam; 11. Inner stirrups of outer ring beam; 1101. End stirrup opening; 1102. Inner stirrup opening. Detailed Implementation

[0016] like Figures 1 to 3As shown, this utility model relates to a ring beam node connecting a composite column and a concrete beam, including a composite column 2, an outer ring beam 4, outer ring beam web reinforcement 10, and outer ring beam inner hoop 11. The composite column 2 contains an embedded steel pipe 3. The outer ring beam 4 is located outside the composite column 2 and is composed of two sets of ring-shaped components with gradually changing diameters. The outer ring beam 4 is further reinforced with outer hoop 6. The composite column 2 has a square cross-section, with the embedded steel pipe 3 centered within the composite column 2. The inner wall of the composite column 2 is provided with composite column longitudinal reinforcement 7. The outer ring beam outer hoop 6 has a C-shaped design and is sleeved on the upper and lower sets of outer ring beams. On the outside of body 4, the ends of the outer ring beam stirrups 6 penetrate through the composite column 2 and are placed inside it. The outer ring beam 4 is anchored outside the composite column 2, and the ends of the outer ring beam stirrups 6 are placed inside the composite column 2. When concrete is poured inside the composite column 2, the outer ring beam stirrups 6 can be reinforced for the second time. The concrete structure beam 1 is inserted between the outer ring beams 4, inserted from the opening of the end of the outer ring beam web reinforcement 10, and then reinforced with the longitudinal bottom reinforcement 9 of the outer ring beam to form multiple anchorages. The arrangement method of the outer ring beam 4 can effectively solve the problem of the seismic anchorage length of the longitudinal reinforcement of the concrete structure beam 1, and the construction is convenient and will not cause damage to the embedded steel pipes in the composite column 2.

[0017] like Figures 2 to 5As shown, this utility model relates to a ring beam node connecting a composite column and a concrete beam, including a composite column 2, an outer ring beam 4, outer ring beam web reinforcement 10, and an outer ring beam inner hoop 11. The outer ring beam web reinforcement 10 is located between two sets of outer ring beams 4, and the diameter of the outer ring beam web reinforcement 10 is the same as the diameter of the outermost ring member of the outer ring beam 4. The outer ring beam inner hoop 11 is installed between the outer ring beam 4 and the outer ring beam web reinforcement 10. A concrete structural beam 1 is provided on the outer side of the outer ring beam 4. The middle part of the outer ring beam web reinforcement 10 is semi-circular, and both ends are vertically extended. The extended parts of two adjacent outer ring beam web reinforcements 10 form an insertion port. The ends of the concrete structural beam 1 are connected to the insertion port. The outer ring beam longitudinal bottom reinforcement 9 is sleeved on the outer side of the extended part of the outer ring beam web reinforcement 10, and the outer ring beam longitudinal bottom reinforcement 9 is square closed. The outer ring beam longitudinal bottom reinforcement 9 and the outer ring beam web reinforcement 10 are fixed by binding. The ends of the outer ring beam outer hoop 6 are... The outer ring beam is provided with longitudinal reinforcement 5. The connection ends of the outer ring beam longitudinal reinforcement 5, the outer ring beam outer stirrup 6, and the composite column longitudinal reinforcement 7 are tied and fixed by the composite column stirrup 8. The inner hoop 11 of the outer ring beam has end hoop openings 1101 at both the upper and lower ends of its inner side, and an inner hoop opening 1102 at the middle of its inner side. The end hoop openings 1101 and the inner hoop openings 1102 respectively clamp and fix the outer ring beam body 4 and the outer ring beam waist reinforcement 10. The outer ring beam body 4 is composed of ring parts of different diameters. The outer ring parts are tightly clamped by the outer ring beam outer stirrup 6 and the inner side is tightly clamped by the outer ring beam inner hoop 11. The end hoop openings 1101 of the outer ring beam inner hoop 11 clamp and position the outermost ring part of the outer ring beam body 4, while the inner hoop opening 1102 clamps the outer ring beam waist reinforcement 10, so that they form a complete and effective overall structure to ensure structural strength. The structural design of the outer ring beam inner hoop 11 reduces the difficulty of assembly and improves construction efficiency.

[0018] Working principle: This embodiment provides a ring beam node connecting a composite column and a concrete beam. The outer ring beam 4 is anchored outside the composite column 2. The ends of the outer ring beam stirrups 6 are inserted into the composite column 2. When concrete is poured into the composite column 2, the outer ring beam stirrups 6 can be reinforced for the second time. The concrete structure beam 1 is inserted between the outer ring beams 4, inserted from the opening of the end of the outer ring beam web reinforcement 10, and then reinforced with the longitudinal bottom reinforcement 9 of the outer ring beam. The outer ring beam 4 is composed of ring parts with different diameters. The outer ring parts are tightly bound by the outer ring beam stirrups 6 on the outside and tightly bound by the inner ring beam stirrups 11 on the inside. The end hoop 1101 of the inner ring beam stirrups 11 is engaged with and positioned on the outermost ring part of the outer ring beam 4, while the inner hoop 1102 is engaged with the outer ring beam web reinforcement 10.

[0019] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A ring beam joint connecting a composite column and a concrete beam, comprising a composite column (2), an outer ring beam (4), outer ring beam web reinforcement (10), and inner hoop members (11) of the outer ring beam, characterized in that: The composite column (2) has an embedded steel pipe (3) inside. The outer ring beam (4) is located outside the composite column (2). The outer ring beam (4) is composed of two sets of ring parts with gradually changing diameters, and the outer ring beam (4) is provided with outer ring beam stirrups (6) on the outside. The outer ring beam waist reinforcement (10) is set between the two sets of outer ring beam bodies (4), and the diameter of the outer ring beam waist reinforcement (10) is the same as the diameter of the outermost ring member of the outer ring beam body (4). The outer ring beam inner hoop (11) is installed between the outer ring beam body (4) and the outer ring beam waist reinforcement (10). The outer ring beam body (4) is provided with a concrete structural beam (1) on the outside.

2. The ring beam joint connecting a composite column and a concrete beam according to claim 1, characterized in that: The cross-section of the composite column (2) is square, and the steel pipe (3) embedded in the composite column is centered inside the composite column (2). The inner wall of the composite column (2) is provided with composite column longitudinal reinforcement (7).

3. A ring beam joint connecting a composite column and a concrete beam according to claim 2, characterized in that: The outer ring beam outer hoop (6) is designed in a C shape, and the outer ring beam outer hoop (6) is sleeved on the outside of the upper and lower sets of outer ring beams (4). The end of the outer ring beam outer hoop (6) passes through the composite column (2) and is placed on its inner side.

4. A ring beam joint connecting a composite column and a concrete beam according to claim 3, characterized in that: The middle part of the outer ring beam waist bar (10) is semi-circular and the two ends are vertically extended. The extended parts of two adjacent outer ring beam waist bars (10) form an insertion port, and the ends of the concrete structure beam (1) are connected to the insertion port.

5. A ring beam joint connecting a composite column and a concrete beam according to claim 4, characterized in that: The outer ring beam waist reinforcement (10) is sleeved with the outer ring beam longitudinal bottom reinforcement (9) on the outer side, and the outer ring beam longitudinal bottom reinforcement (9) is square closed. The outer ring beam longitudinal bottom reinforcement (9) and the outer ring beam waist reinforcement (10) are fixed by binding.

6. A ring beam joint connecting a composite column and a concrete beam according to claim 5, characterized in that: The outer ring beam outer hoop (6) has a longitudinal surface reinforcement (5) at its head. The connection ends of the outer ring beam longitudinal surface reinforcement (5), the outer ring beam outer hoop (6) and the composite column longitudinal reinforcement (7) are tied and fixed by the composite column hoop (8).

7. A ring beam joint connecting a composite column and a concrete beam according to claim 6, characterized in that: The inner hoop (11) of the outer ring beam is provided with end hoop openings (1101) at both the upper and lower ends of the inner side, and the inner hoop opening (1102) is provided at the middle of the inner side of the outer ring beam. The end hoop opening (1101) and the inner hoop opening (1102) are respectively used to fix the outer ring beam body (4) and the outer ring beam waist reinforcement (10).

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