Aluminum alloy pipe confined reinforced concrete column-reinforced concrete beam connecting joint

Abstract

The utility model discloses a connecting joint of aluminum alloy pipe restraint reinforced concrete column-reinforced concrete beam relates to building construction technical field, including aluminum alloy pipe restraint reinforced concrete column, with a group of reinforced concrete beam that aluminum alloy pipe restraint reinforced concrete column is connected and aluminum alloy concrete column and reinforced concrete beam connecting joint core area, and there is the spiral hoop in the column on the aluminum alloy pipe restraint reinforced concrete column and penetrates, and spiral hoop passes through the close annular constraint, prevents longitudinal reinforcement premature buckling, has stronger anti -seismic energy -dissipation ability. Adopt spiral hoop further improved the restraint of core concrete, improved the shear performance of node core area structure. Compared with reinforced concrete column, aluminum alloy pipe restraint reinforced concrete column has better anti -seismic performance, and aluminum alloy pipe restraint reinforced concrete column adopts aluminum alloy pipe and has light weight high -strength, and the corrosion -resisting performance is good, and aluminum alloy pipe does not directly bear vertical load at the same time, and has better restraint effect to core concrete.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a connection node for an aluminum alloy tube constrained reinforced concrete column-reinforced concrete beam. Background Technology

[0002] With rapid socio-economic development, both domestically and internationally, there is increasing emphasis on sustainable development in the construction industry. Green building has become a crucial development direction for the industry. Aluminum alloys, with their excellent corrosion resistance, high recyclability, and lightweight yet high-strength characteristics, are widely used as green building materials in fields such as architectural decoration, bridge structures, and aerospace. However, in practical engineering, aluminum alloy tube reinforced concrete columns have certain limitations. Under vertical loads, aluminum alloy tubes are prone to local buckling, leading to structural failure. If a traditional ring-plate structure similar to that used in steel-concrete composite beam-column structures is adopted, welding the outer ring plate of the aluminum alloy tube to the reinforcing steel is difficult, resulting in low weld strength. Welding the outer ring plate of the steel tube to the aluminum alloy tube is equally challenging. Drilling holes in the surface of the aluminum alloy tube weakens its mechanical properties, disrupts its integrity, and easily causes localized stress concentration at the edges of the holes. All of these factors pose potential risks to the overall load-bearing capacity and resistance to progressive collapse of the structure.

[0003] The prior art, such as the Chinese invention patent with publication number CN 117127723 A, discloses a beam-column connection structure and a construction method for the beam-column connection structure. The beam-column connection structure includes: a beam extending along a first direction, with beam stirrups inside the beam; a column extending in a vertical direction, comprising a lower column segment, a node area column segment, and an upper column segment connected sequentially from bottom to top, with column stirrups provided in both the lower and upper column segments, and a portion of the beam stirrups located in the node area column segment; and spiral stirrups extending in a vertical direction, comprising a lower spiral stirrup segment, a node area spiral stirrup segment, and an upper spiral stirrup segment connected sequentially from bottom to top, with the lower spiral stirrup segment located in the lower column segment, the node area spiral stirrup segment located in the node area column segment, and the upper spiral stirrup segment located in the upper column segment. Although the patent features spiral stirrups, the outer tube material of the patent is in direct contact with the concrete. The spiral stirrups are only used to restrain the concrete. Furthermore, the construction of the spiral stirrups and the longitudinal reinforcement in the beam is difficult, as is the splicing of the reinforcing bars and the pouring of concrete. Utility Model Content

[0004] To address the shortcomings in the aforementioned background technology, this utility model proposes a connection node for an aluminum alloy tube-constrained reinforced concrete column-reinforced concrete beam, which solves the problems of limitations in the existing aluminum alloy tube reinforced concrete column, difficulties in rebar splicing and concrete pouring, and the tendency of the aluminum alloy tube to buckle locally under vertical loads, leading to structural damage.

[0005] The technical solution of this utility model is implemented as follows: the connection node of aluminum alloy tube constrained reinforced concrete column-reinforced concrete beam includes aluminum alloy tube constrained reinforced concrete column, at least one set of reinforced concrete beams are provided on the aluminum alloy tube constrained reinforced concrete column, the reinforced concrete beams are provided with beam-column joint area that cooperates with the aluminum alloy tube constrained reinforced concrete column, and spiral stirrups are passed through the aluminum alloy tube constrained reinforced concrete column.

[0006] Furthermore, the density of the spiral stirrups inside the column decreases from the point of contact with the reinforced concrete beam towards both sides.

[0007] Furthermore, the aluminum alloy tube-confined reinforced concrete column includes an aluminum alloy tube assembly, with column concrete inside the aluminum alloy tube assembly. The column is circumferentially provided with column longitudinal reinforcement that cooperates with the column spiral stirrups. Both the column spiral stirrups and the column longitudinal reinforcement are embedded in the column concrete.

[0008] Furthermore, the aluminum alloy tube assembly includes an upper aluminum alloy tube and a lower aluminum alloy tube, with the upper aluminum alloy tube located above the reinforced concrete beam and the lower aluminum alloy tube located below the reinforced concrete beam.

[0009] Furthermore, both the upper and lower aluminum alloy tubes are rectangular tubes or both are cylindrical tubes.

[0010] Furthermore, the distance between the upper aluminum alloy tube and the adjacent end face of the reinforced concrete beam is 'a', where 'a' is 8~15mm, and the distance between the lower aluminum alloy tube and the adjacent end face of the reinforced concrete beam is 'b', where 'b' is 8~15mm.

[0011] Furthermore, the reinforced concrete beam includes concrete inside the beam, longitudinal reinforcement bars are provided inside the concrete, and stirrups are provided on the longitudinal reinforcement bars.

[0012] Furthermore, the beam stirrup group includes several beam stirrups, and the spacing between adjacent beam stirrups increases sequentially from the aluminum alloy tube constraining the reinforced concrete column outwards.

[0013] Furthermore, the longitudinal reinforcement of the beam includes outer longitudinal reinforcement and inner longitudinal reinforcement. Both the outer and inner longitudinal reinforcements penetrate the concrete inside the beam and the concrete inside the column. The outer longitudinal reinforcement is symmetrically arranged outside the inner longitudinal reinforcement, and the middle part of the outer longitudinal reinforcement has an arc-shaped part that cooperates with the inner longitudinal reinforcement.

[0014] Furthermore, the reinforced concrete beam is a cross-shaped beam structure, with the beam-column joint area covering the outer side of the arc-shaped portion of the beam's longitudinal reinforcement.

[0015] The beneficial effects of this utility model are as follows: This utility model is for green building. Aluminum alloy, as a new type of green building material, has the advantages of being "lightweight and high-strength," while also possessing strong corrosion resistance and high recyclability. It is of great significance in promoting the development of the construction industry towards low-carbon, high-efficiency, and green directions. It exhibits excellent corrosion resistance. In aluminum alloy tubes constrained reinforced concrete structures, a dense aluminum oxide film forms on the aluminum alloy surface, providing good corrosion resistance and making it widely applicable to harsh environments such as humidity and salt spray. The construction cycle is short. The construction of aluminum alloy tube-constrained reinforced concrete column-reinforced concrete beam joints mainly uses precast components, resulting in a simple structure and convenient construction, effectively reducing the construction cycle. Aluminum alloy tubes, longitudinal reinforcement, and spiral stirrups can all be prefabricated in the factory, greatly reducing the construction cycle.

[0016] With its rational force transmission, the aluminum alloy tube-confined reinforced concrete column possesses high load-bearing capacity and better ductility. The use of spiral stirrups further enhances the confinement of the core concrete, improving the structure's shear resistance. The entire joint connection construction meets the design principles of "strong column-weak beam," "strong shear-weak bending," and "strong joint-weak member." It exhibits excellent seismic performance, with the aluminum alloy tube-confined reinforced concrete column demonstrating superior seismic resistance compared to other aluminum alloy tube reinforced concrete columns. The spiral stirrups, through tight circumferential confinement, prevent premature buckling of the longitudinal reinforcement and possess strong energy dissipation capacity. Construction is convenient; the construction steps for the aluminum alloy tube-confined reinforced concrete column-reinforced concrete beam joint are simple and efficient. The entire structure possesses good mechanical properties, ensuring high reliability while facilitating construction, thus improving the economic benefits and social value of this type of structure. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0020] Figure 3 for Figure 1 A perspective view used to show the reinforcement of the circular cross-section aluminum alloy tube-confined reinforced concrete column-reinforced concrete beam joint;

[0021] Figure 4 for Figure 2A perspective view used to show the reinforcement of the square cross-section aluminum alloy tube confined reinforced concrete column-reinforced concrete beam joint;

[0022] Figure 5 This is a cross-sectional view of the present invention;

[0023] Figure 6 for Figure 5 AA cross-section view;

[0024] Figure 7 for Figure 5 BB section Figure 1 ;

[0025] Figure 8 for Figure 5 BB section Figure 2 ;

[0026] Figure 9 for Figure 5 CC cross-section;

[0027] Figure 10 This is a schematic diagram of the spiral stirrups inside the column;

[0028] In the diagram: 1 is an aluminum alloy tube-confined reinforced concrete column, 2 is a reinforced concrete beam, 3 is the beam-column joint area, 4 is the upper aluminum alloy tube, 5 is the lower aluminum alloy tube, 6 is the concrete inside the column, 7 is the longitudinal reinforcement inside the column, 8 is the spiral stirrup inside the column, 9 is the concrete inside the beam, 10 is the longitudinal reinforcement inside the beam, 11 is the longitudinal reinforcement outside the beam, and 12 is the stirrup inside the beam. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1-3As shown in Example 1, the connection node between an aluminum alloy tube-confined reinforced concrete column and a reinforced concrete beam includes an aluminum alloy tube-confined reinforced concrete column 1, at least one set of reinforced concrete beams 2 on the aluminum alloy tube-confined reinforced concrete column 1, and a beam-column joint area 3 on the reinforced concrete beams 2 that cooperates with the aluminum alloy tube-confined reinforced concrete column 1. Spiral stirrups 8 penetrate the aluminum alloy tube-confined reinforced concrete column 1. These spiral stirrups, through tight circumferential confinement, prevent premature buckling of the longitudinal reinforcement and have strong energy dissipation capacity. The use of spiral stirrups further enhances the confinement force on the core concrete, improving the shear resistance of the structure. The entire node connection construction meets the design principles of "strong column-weak beam," "strong shear-weak bending," and "strong node-weak member." It exhibits excellent seismic performance; the aluminum alloy tube-confined reinforced concrete column 1 has better seismic performance than aluminum alloy tube reinforced concrete columns. The entire structure has good mechanical properties, ensuring high structural reliability while facilitating construction, thus improving the economic benefits and social value of this type of structure.

[0031] In this embodiment, the density of the spiral stirrups 8 within the column decreases from the point of contact with the reinforced concrete beam 2 towards both sides. The aluminum alloy tube-confined reinforced concrete column 1 includes an aluminum alloy tube assembly, within which is column-embedded concrete 6. Longitudinal reinforcement 7, which cooperates with the spiral stirrups 8, is circumferentially arranged within the aluminum alloy tube assembly. Both the spiral stirrups 8 and the longitudinal reinforcement 7 are embedded in the column-embedded concrete 6. The aluminum alloy tube assembly includes an upper aluminum alloy tube 4 and a lower aluminum alloy tube 5. The upper aluminum alloy tube 4 is located above the reinforced concrete beam 2, and the lower aluminum alloy tube 5 is located below the reinforced concrete beam 2. The reinforced concrete column 1 confined by the aluminum alloy tube should use concrete of at least C40 grade to ensure that the concrete and aluminum alloy tubes can fully utilize their synergistic material properties while considering economy and column cross-sectional dimensions.

[0032] Specifically, the aluminum alloy tube-confined reinforced concrete column 1 mainly includes an upper aluminum alloy tube 4, a lower aluminum alloy tube 5, a concrete structure filled within the aluminum alloy tube, longitudinal reinforcement bars throughout the column, and spiral stirrups 8 within the column. The upper aluminum alloy tube 4 and the lower aluminum alloy tube 5 refer to the upper and lower parts of the beam-column joint area 3. The upper and lower aluminum alloy tubes do not directly contact the reinforced concrete beam 2, but are spaced 10mm apart. This ensures that the aluminum alloy tubes do not directly bear the vertical load while providing good confinement to the core concrete. In other words, the aluminum alloy tubes do not contact the concrete beam, preventing buckling under vertical loads. By using the aluminum alloy tubes to confine the lateral deformation of the core concrete instead of directly bearing the vertical load, the component exhibits good ductility.

[0033] In this embodiment, both the upper aluminum alloy tube 4 and the lower aluminum alloy tube 5 are rectangular tubes. Both the upper aluminum alloy tube 4 and the lower aluminum alloy tube 5 are cylindrical tubes. The distance between the upper aluminum alloy tube 4 and the adjacent end face of the reinforced concrete beam 2 is 'a', where 'a' is 8~15mm, and the distance between the lower aluminum alloy tube 5 and the adjacent end face of the reinforced concrete beam 2 is 'b', where 'b' is 8~15mm. Preferably, 'a' = 'b' = 10mm. For square and circular cross-section columns, the longitudinal reinforcement 7 inside the column is arranged in a circular pattern along the column cross-section. When considering the thickness of the protective layer of the reinforcement in the aluminum alloy tube-confined reinforced concrete column 1, the thickness of the aluminum alloy tube should also be considered to ensure that the mechanical performance of the composite structure is optimal.

[0034] Specifically, aluminum alloy tubes of model 6061-T6 or higher are selected according to design requirements to ensure the material's strength and corrosion resistance. The aluminum alloy tubes are prefabricated in the factory, which not only improves the precision of the components but also shortens the construction cycle. In the reinforced concrete column 1, the aluminum alloy tubes only provide restraint to the core concrete and do not directly bear vertical loads, thus giving the component higher load-bearing capacity and ductility. When the gap between the aluminum alloy tube and the beam-column joint area 3 is too large, it will reduce the mechanical properties of the upper and lower frame columns in the beam-column joint area 3. When the gap in the beam-column joint area 3 is too small, it is easy for the aluminum alloy tube to bear vertical loads. Considering all factors, the gap between the aluminum alloy tube and the beam-column joint area 3 is set at 10mm. During factory processing, the aluminum alloy tubes should be processed in sections strictly according to design requirements. Due to the special properties of aluminum alloy materials, welding and cutting will lead to performance degradation of the aluminum alloy tubes. Therefore, secondary cutting and welding of the aluminum alloy tubes after processing should be avoided during construction.

[0035] For columns with square or circular cross-sections, circular spiral stirrups are used for the internal reinforcement. Circular spiral stirrups have strong circumferential restraint, effectively preventing premature yielding of longitudinal reinforcement and improving the ductility of the frame column. The spiral stirrups are densified in beam-column joint area 3 to improve the shear capacity, ductility, and energy dissipation performance of the core joint area. The length and spacing of the reinforced spiral stirrup zone directly affect the mechanical properties of beam-column joint area 3. When the reinforced spiral stirrup zone is short and the spacing is large, it cannot effectively provide restraint; when the spacing of the spiral stirrups is small, the spiral stirrups in beam-column joint area 3 cannot connect well with the longitudinal reinforcement in the beam, making concrete pouring difficult and hindering construction. Therefore, it is recommended that the spacing of the reinforced spiral stirrup zone should not be less than 40mm and not more than 80mm, and the length of the reinforced spiral stirrup zone should not be less than twice the beam height and not less than 500mm. The spiral stirrups are wound along the direction of the longitudinal reinforcement 7 in the column and tied with binding wire to form a reinforcing cage.

[0036] like Figures 4-10As shown in Example 2, the connection node between an aluminum alloy tube-confined reinforced concrete column and a reinforced concrete beam includes an aluminum alloy tube-confined reinforced concrete column, a set of reinforced concrete beams connected to the aluminum alloy tube-confined reinforced concrete column, and a core area of ​​the connection node between the aluminum alloy concrete column and the reinforced concrete beam. The aluminum alloy tube-confined reinforced concrete column is perforated with internal spiral stirrups. These spiral stirrups, through tight circumferential confinement, prevent premature buckling of the longitudinal reinforcement and possess strong seismic energy dissipation capacity. The use of spiral stirrups further enhances the confinement force on the core concrete and improves the shear performance of the core area structure. Compared to reinforced concrete columns, aluminum alloy tube-confined reinforced concrete columns have better seismic performance. The aluminum alloy tubes used in these columns are lightweight, high-strength, and corrosion-resistant. Furthermore, while not directly bearing vertical loads, the aluminum alloy tubes provide good confinement to the core concrete. The reinforced concrete beam 2 includes an inner concrete 9, within which are internal longitudinal reinforcement 10, and internal stirrup sets are provided on the internal longitudinal reinforcement 10. The beam stirrup group includes several beam stirrups 12, with the spacing of adjacent beam stirrups 12 increasing sequentially from the closest to the aluminum alloy tube-confined reinforced concrete column 1 outwards. The reinforced concrete beam 2 should use concrete of at least C30 grade or higher. Considering both economic efficiency and beam cross-sectional dimensions, higher strength concrete should be used when the beam cross-sectional height is higher.

[0037] Specifically, the longitudinal reinforcement in the beam passes through the beam-column joint area 3 to improve the overall mechanical strength of the joint area and improve the stress distribution. The longitudinal reinforcement in the beam should be at least HRB400 grade steel to ensure structural safety and reliability while avoiding excessive increases in reinforcement area. To avoid difficulties in splicing the reinforcement in the joint area and hindering concrete pouring, the longitudinal reinforcement 10 on the inner side of the beam in different directions passes through the spiral stirrups and overlaps with each other, while the longitudinal reinforcement 11 on the outer side of the beam in different directions bypasses the spiral stirrups and overlaps with each other. If the longitudinal reinforcement in the beam conflicts with the spiral stirrups 8 in the column when it passes through the core joint area, the stirrup avoidance principle can be adopted, and the spacing of the spiral stirrups 8 in the column can be adjusted appropriately, but the shear resistance of the joint area cannot be sacrificed, and the longitudinal reinforcement or spiral stirrups cannot be cut off. For the longitudinal reinforcement 11 on the outer side of the beam, excessive bending angles should be avoided.

[0038] In this embodiment, the longitudinal reinforcement of the beam includes outer longitudinal reinforcement 11 and inner longitudinal reinforcement 10. Both the outer longitudinal reinforcement 11 and the inner longitudinal reinforcement 10 penetrate the concrete inside the beam and the concrete inside the column 6. The outer longitudinal reinforcement 11 is symmetrically arranged outside the inner longitudinal reinforcement 10, and the middle part of the outer longitudinal reinforcement 11 has an arc-shaped part that cooperates with the inner longitudinal reinforcement 7. In this embodiment, the reinforced concrete beam 2 is a "+" shaped beam structure, and the beam-column joint area 3 is set to cover the outside of the arc-shaped part of the beam longitudinal reinforcement. The stirrups 12 inside the beam are arranged along the entire length of the longitudinal reinforcement and are connected to the inner longitudinal reinforcement by binding wire. The stirrups 12 inside the beam are densified at the beam ends. The length of the densified stirrup area should be at least 1.5 times the beam height, the stirrup spacing should not be greater than 100mm, and the first ring of stirrups should be within 50mm from the end.

[0039] All other structures are the same as in Example 1.

[0040] The specific construction method of this building structure is as follows: the aluminum alloy tube-confined reinforced concrete column-reinforced concrete beam building structure mainly includes aluminum alloy tube-confined concrete columns 1, reinforced concrete beams 2, and beam-column joint area 3, among which beam-column joint area 3 is the key area in this structure. The aluminum alloy tube-confined steel tube concrete column 1 with different cross-section types is mainly composed of upper aluminum alloy tube 4, lower aluminum alloy tube 5, column concrete 6, column longitudinal reinforcement 7, and column spiral stirrups 8.

[0041] Step 1: Determine the dimensions and specifications of the precast components, including the cross-sectional dimensions of the aluminum alloy tube-confined reinforced concrete column 1 and the reinforced concrete beam 2, as well as the model and dimensions of the longitudinal reinforcement and spiral stirrups 8. All components are precast in the factory.

[0042] Step two: Determine the placement of the frame column through measurement. First, install the longitudinal reinforcement 7 inside the column. The quantity, strength, and diameter of the longitudinal reinforcement should be determined according to the design requirements. The longitudinal reinforcement 7 inside the column runs through the core node area 3 and should use at least HRB400 grade steel to achieve better mechanical performance. The spiral stirrups 8 inside the column are arranged along the direction of the longitudinal reinforcement 7. It is worth noting that the spacing of the spiral stirrups inside the column is not uniform. The spiral stirrups 8 are densified in the node area 3 and the upper and lower parts of the node area. The spacing of the spiral stirrups in the densified area should not exceed 80mm. The spiral stirrups 8 are prefabricated in the steel processing plant. The spiral stirrups 8 are tied to the longitudinal reinforcement 7 inside the column with tie wire and form a steel cage with the longitudinal reinforcement 7 inside the column to improve the mechanical performance of the node area and meet the design principle of "strong node, weak member". The aluminum alloy pipe is fitted onto the reinforcing cage, and the aluminum alloy pipe also serves as a formwork, saving construction time. According to the design requirements, the appropriate aluminum alloy pipe model and wall thickness are selected. The aluminum alloy pipe is prefabricated in the factory and transported from the factory to the construction site. When hoisting the aluminum alloy pipe, considering the material characteristics of the aluminum alloy pipe, the rotation straightening method should be used to prevent the aluminum alloy pipe from being damaged by impact. At this time, the hoisting of the aluminum alloy pipe is completed. The aluminum alloy pipe should be constructed in sections, and prefabricated in sections according to the design height.

[0043] Step 3: The reinforced concrete beam 2 is mainly composed of the inner concrete 9, the inner longitudinal reinforcement 10, the outer longitudinal reinforcement 11, and the inner stirrups 12. The inner longitudinal reinforcement 10 and 11 pass through the joint area. The inner longitudinal reinforcement 10 is arranged along the entire length of the beam. The outer longitudinal reinforcement 11 is arranged along the direction of the spiral stirrups 8 in the column. The inner longitudinal reinforcement 10 of the beams in different directions overlaps with each other. The inner longitudinal reinforcement 10 passes through the gap of the spiral stirrups 8 in the joint area 3. The outer longitudinal reinforcement 11 of the beams in different directions bypasses the spiral stirrups 8 and overlaps with each other. The inner stirrups 12 are arranged along the entire length of the inner longitudinal reinforcement. The inner stirrups 12 are densified near the joint area to ensure the seismic and shear resistance of the joint area. When binding the inner stirrups 12, the position of the stirrups should be confirmed first. The position of the stirrups should be determined strictly in accordance with the design specifications to ensure that the opening direction of the stirrups is staggered. Galvanized binding wire is used for binding.

[0044] Step four: Concrete pouring. Before pouring concrete, the longitudinal reinforcement bars 10 and 11 in the beam are laid through. The stirrups 12 in the beam are tied with the longitudinal reinforcement bars 10 and 11 to form a steel cage. Formwork construction is carried out in the joint area 3. During formwork erection, the error should be strictly controlled to prevent the steel cage from shifting. At the same time, the sealing and strength of the formwork in the joint area 3 should be ensured to meet the construction requirements. At this time, concrete pouring is carried out. The concrete 6 in the column is C40 or higher strength concrete. The concrete pouring should be carried out by high-level drop method. During the pouring process, the concrete is vibrated and ultrasonic testing is used to check for the voids between the aluminum alloy pipe and the concrete.

[0045] Step 5: Curing the concrete. Curing should be carried out according to the specifications based on the actual site conditions. After curing is completed, remove the formwork and check the concrete strength.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection node for an aluminum alloy tube-confined reinforced concrete column-reinforced concrete beam, characterized in that: It includes an aluminum alloy tube-confined reinforced concrete column (1), an aluminum alloy tube-confined reinforced concrete column (1) with at least one set of reinforced concrete beams (2), a beam-column joint area (3) that cooperates with the aluminum alloy tube-confined reinforced concrete column (1) on the reinforced concrete beams (2), and a spiral stirrup (8) penetrating the aluminum alloy tube-confined reinforced concrete column (1).

2. The connection joint of an aluminum alloy tube confined reinforced concrete column-reinforced concrete beam according to claim 1, characterized by: The density of the spiral stirrups (8) inside the column decreases from the point where they meet the reinforced concrete beam (2) to both sides.

3. The connection joint of an aluminum alloy tube confined reinforced concrete column-reinforced concrete beam according to claim 2, characterized by: The aluminum alloy tube confined reinforced concrete column (1) includes an aluminum alloy tube assembly, with column concrete (6) inside the aluminum alloy tube assembly. The column is provided with column longitudinal reinforcement (7) in the circumferential direction of the aluminum alloy tube assembly, which cooperates with the column spiral stirrup (8). The column spiral stirrup (8) and column longitudinal reinforcement (7) are both embedded in the column concrete (6).

4. The connection joint of an aluminum alloy tube confined reinforced concrete column-reinforced concrete beam according to claim 3, characterized by: The aluminum alloy tube assembly includes an upper aluminum alloy tube (4) and a lower aluminum alloy tube (5). The upper aluminum alloy tube (4) is located above the reinforced concrete beam (2), and the lower aluminum alloy tube (5) is located below the reinforced concrete beam (2).

5. The connection joint of an aluminum alloy tube confined reinforced concrete column-reinforced concrete beam according to claim 4, characterized by: Both the upper aluminum alloy tube (4) and the lower aluminum alloy tube (5) are rectangular or cylindrical tubes.

6. The connection joint of an aluminum alloy tube confined reinforced concrete column-reinforced concrete beam according to claim 5, characterized by: The distance between the upper aluminum alloy tube (4) and the adjacent end face of the reinforced concrete beam (2) is a, where a is 8~15mm, and the distance between the lower aluminum alloy tube (5) and the adjacent end face of the reinforced concrete beam (2) is b, where b is 8~15mm.

7. The connection joint of an aluminum alloy tube confined reinforced concrete column-reinforced concrete beam according to claim 5 or 6, characterized by: The reinforced concrete beam (2) includes concrete (9) inside the beam, and longitudinal reinforcement bars are provided inside the concrete (9), and stirrups are provided on the longitudinal reinforcement bars.

8. The connection joint of an aluminum alloy tube confined reinforced concrete column-reinforced concrete beam according to claim 7, characterized by: The beam stirrup group includes several beam stirrups (12), and the spacing between adjacent beam stirrups (12) increases sequentially from the aluminum alloy tube constrained reinforced concrete column (1) to the outside.

9. The connection node of aluminum alloy tube confined reinforced concrete column-reinforced concrete beam according to claim 8, characterized in that: The longitudinal reinforcement of the beam includes the outer longitudinal reinforcement (11) and the inner longitudinal reinforcement (10). Both the outer longitudinal reinforcement (11) and the inner longitudinal reinforcement (10) penetrate the concrete inside the beam and the concrete inside the column (6). The outer longitudinal reinforcement (11) is symmetrically arranged outside the inner longitudinal reinforcement (10). The middle part of the outer longitudinal reinforcement (11) is provided with an arc-shaped part that cooperates with the inner longitudinal reinforcement (7).

10. The connection joint of an aluminum alloy tube confined reinforced concrete column-reinforced concrete beam according to claim 8 or 9, characterized by: The reinforced concrete beam (2) is a cross-shaped beam structure, and the beam-column joint area (3) is set to cover the outside of the arc-shaped part of the longitudinal reinforcement of the beam.

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