Steel pipe high-strength concrete column joint for beam-column connection and manufacturing method thereof

CN118531911BActive Publication Date: 2026-10-23SHANDONG YIFANGDA CONSTR PROJECT MANAGEMENT CO LTD +1
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Patent Information

Application Number
CN202410606188.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-16
Publication Date
2026-10-23
Estimated Expiration
2044-05-16

AI Technical Summary

Technical Problem

[0003]现有的专利文献中,一份公开号为CN 1095018 C,名称为“一种用于梁柱连接的钢管高强混凝土柱节点及其制造方法”的专利,该专利等现有技术主要通过法兰盘将柱身段与节点段固定连接,并在节点段的外侧设置有穿心腹板用于提升抗变形能力,但是其仅能提升节点段的抗变形能力,无法保证柱身段与节点段之间连接处的抗变形能力,因为穿心腹板并没有延伸至柱身段上,而柱身段与节点段之间仅靠法兰盘连接,导致柱身段与节点段之间的法兰盘处很容易因应力过大而出现完全变形的现象,其实际应用时的稳定性及可靠性并不高

Benefits of technology

1、该钢管高强混凝土柱节点将加强定位座固定于钢管柱身内,由于节点柱身的上下端设置对接嘴和内加强钢筋,当对接嘴装配于对接口内时,内加强钢筋也同时装配于钢筋插口内,此时插块在卡爪的推动下抵触于插槽内,从而实现节点柱身的卡接,进一步强化节点柱身与钢管柱身之间连接处的抗弯能力,以此保证其安装后的稳定性及可靠性。

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Abstract

The application discloses a steel pipe high-strength concrete column joint for beam-column connection and a manufacturing method thereof, and relates to the technical field of connecting devices. The steel pipe high-strength concrete column joint comprises a joint column body, the upper and lower ends of the joint column body are fixed with butt joints, the upper and lower ends of the joint column body are fixed with internal reinforcing steel bars, the internal reinforcing steel bars are provided with insertion slots, the steel pipe high-strength concrete column joint further comprises a reinforcing positioning seat, a butt joint is provided in the center of the reinforcing positioning seat, the reinforcing positioning seat is provided with a steel bar insertion opening, and the reinforcing positioning seat is provided with an insertion block. The reinforcing positioning seat is fixed in the steel pipe column body, when the butt joint is assembled in the butt joint, the internal reinforcing steel bars are simultaneously assembled in the steel bar insertion opening, at this time, the insertion block is abutted in the insertion slot under the pushing of the clamping jaw, so that the clamping of the joint column body is realized, the bending resistance of the connecting part between the joint column body and the steel pipe column body is further strengthened, and the stability and reliability after installation are ensured.
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Description

Technical Field

[0001] This invention relates to the technical field of connection devices, specifically to a steel pipe high-strength concrete column joint for beam-column connection and its manufacturing method. Background Technology

[0002] A steel-tube high-strength concrete column joint refers to a column joint in a building structure that uses steel tubes and high-strength concrete as the main materials. This joint design typically uses high-strength steel tubes as the main components of the column and connects the steel tubes to the concrete column through specific connection methods to provide better seismic performance and load-bearing capacity.

[0003] Among the existing patent documents, there is a patent with publication number CN 1095018 C entitled "A steel pipe high-strength concrete column joint for beam-column connection and its manufacturing method". This patent and other existing technologies mainly fix the column section and the joint section by flange, and set a through-core web plate on the outside of the joint section to improve the deformation resistance. However, it can only improve the deformation resistance of the joint section, but cannot guarantee the deformation resistance of the connection between the column section and the joint section. This is because the through-core web plate does not extend to the column section, and the column section and the joint section are only connected by flange. As a result, the flange between the column section and the joint section is prone to complete deformation due to excessive stress. Its stability and reliability in actual application are not high. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a steel pipe high-strength concrete column joint for beam-column connection and its manufacturing method. The reinforcing positioning seat is fixed inside the steel pipe column. Since the upper and lower ends of the joint column are provided with a butt joint and an inner reinforcing bar, when the butt joint is assembled into the butt joint, the inner reinforcing bar is also assembled into the bar insertion. At this time, the insertion block abuts against the slot under the push of the claw, thereby realizing the snap-fit ​​of the joint column and further strengthening the bending resistance of the connection between the joint column and the steel pipe column, thereby ensuring its stability and reliability after installation.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is implemented as follows: A steel-tube high-strength concrete column joint for beam-column connection, the steel-tube high-strength concrete column joint including a joint column body; The upper and lower ends of the node column are fixedly connected with a mating mouth. The outer side of the mouth of the mating mouth has a circumferential array of claws that are inclined. The upper and lower ends of the node column are fixed with an inner reinforcing steel bar that is circumferentially arrayed with the mating mouth as the center. Each inner reinforcing steel bar has a slot opened at the location of the mating mouth. The steel pipe high-strength concrete column joint also includes a reinforcing positioning seat that works in conjunction with the butt joint and the internal reinforcing bars. The center of the reinforcing positioning seat has a through-hole that mates with the butt joint. The reinforcing positioning seat has a reinforcing bar insertion hole arranged in a circular array with the butt joint as the center. Insert blocks are installed on the reinforcing positioning seat and arranged in a circular array with the butt joint as the center. The reinforcing positioning seat is fixedly connected to the inside of the steel pipe column. The insert blocks are located between the butt joint and the reinforcing bar insertion hole. When the mating nozzle is installed in the mating interface, the inner reinforcing steel bar is also installed in the steel bar socket. At this time, the insert block is pushed against the slot by the claw.

[0006] Using this scheme, the steel pipe high-strength concrete column joint will fix the reinforced positioning seat inside the steel pipe column body. Since the upper and lower ends of the joint column body are equipped with connecting mouthpieces and inner reinforcing bars, when the connecting mouthpiece is installed in the connecting interface, the inner reinforcing bars are also installed in the reinforcing bar insertion. At this time, the insertion block is pushed by the claw and abuts against the slot, thereby realizing the snap-fit ​​of the joint column body, further strengthening the bending resistance of the connection between the joint column body and the steel pipe column body, thus ensuring its stability and reliability after installation.

[0007] As a preferred embodiment of a steel pipe high-strength concrete column joint for beam-column connection, the claw is fixedly connected only to the mouth of the docking nozzle, and an avoidance groove is provided between each two adjacent claws.

[0008] In order to achieve smooth assembly of the mating nozzle and the mating interface, the inclined claws will be gradually compressed when the mating nozzle is installed in the mating interface. By opening the clearance groove, the claws can be smoothly closed, thus ensuring the smooth assembly of the mating nozzle and the mating interface.

[0009] As a preferred embodiment of a steel pipe high-strength concrete column joint for beam-column connection, the upper and lower ends of the column body of the joint are provided with material inlets arranged in a circular array with the butt joint as the center, and each material inlet is located between two adjacent reinforcing bars; wherein, the reinforcing positioning seat is provided with material inlets arranged in a circular array with the butt joint as the center, and the position of the material inlets corresponds vertically to the position of the material inlets; wherein, the reinforcing positioning seat is fixedly connected to the steel pipe column body, and the upper surface of the reinforcing positioning seat is an inclined slope that gradually decreases towards the joint.

[0010] In order to improve the fluidity of concrete, this scheme is adopted. By opening a first conveying port, the concrete can be conveyed not only from the opposite interface of the trough, but also from the first and second conveying ports, thereby improving the fluidity of the concrete.

[0011] As a preferred embodiment of a steel pipe high-strength concrete column joint for beam-column connection, at least one solidification groove is also provided on the inner wall of the rebar insertion along its length.

[0012] In order to strengthen the fixation of the inner reinforcing steel bars in the steel bar spigot, a solidification groove is also opened on the inner wall of the steel bar spigot. Concrete will flow into the solidification groove, so that the inner reinforcing steel bars are completely fixed in the steel bar spigot, thereby improving the stability of the inner reinforcing steel bars after they are fixed. The inner reinforcing steel bars can strengthen the bending resistance of the connection between the node column and the steel pipe column.

[0013] In a preferred embodiment of a steel-tube high-strength concrete column joint for beam-column connection, the insert is inclined within a reinforcing positioning seat. The insert located above the steel tube column gradually decreases from near the rebar insertion point towards the joint, while the insert located below the steel tube column gradually increases from near the rebar insertion point towards the joint. Damping is provided between the contact surfaces of the insert and the reinforcing positioning seat. The upper surface of the reinforcing positioning seat below the column joint is an inclined slope that gradually decreases towards the joint, while the lower surface of the reinforcing positioning seat above the column joint is an inclined slope that gradually increases towards the joint.

[0014] In order to further improve the fixing effect of the butt joint and the internal reinforcing steel bars, this scheme is adopted. Before the butt joint enters the interface, the butt joint is mainly located in the interface due to the tilt setting of the butt joint. As the butt joint gradually enters the interface, the butt joint is pushed by the claw and abuts against the slot, thereby realizing the snap-fit ​​of the node column.

[0015] In a preferred embodiment of a steel pipe high-strength concrete column joint for beam-column connection, flanges for connecting the steel pipe column body are fixedly connected to both the upper and lower ends of the column body.

[0016] Using this method, in order to connect the node column and the steel pipe column, bolts and nuts are installed on the flange, which can quickly complete the installation of the node column and the steel pipe column.

[0017] A method for manufacturing high-strength concrete steel tube column joints for beam-column connections. This method enables the manufacture of high-strength concrete steel tube column joints for beam-column connections. The specific processing steps are as follows: S1. The node column body is obtained by integral molding of the mold, and the material inlet is also integrally molded along with the node column body; S2. Weld and fix the mating nozzles at the upper and lower ends of the node column body respectively, and weld and fix the clamps on the outside of the nozzle openings. S3. A slot is made in the inner reinforcing steel bar using a machine tool, and then the inner reinforcing steel bar is welded and fixed at the upper and lower ends of the node column body respectively; S4. The reinforced positioning seat is obtained by integral molding of the mold, wherein the rebar insertion, solidification groove and material conveying port are also integrally molded with the node column body; S5. The machine tool opens a groove on the reinforcing positioning seat at the location of the insert block, and then all the insert blocks are assembled into the groove in sequence. S6. The reinforcement positioning seat is welded and fixed inside the steel pipe column body to complete the processing and manufacturing of the steel pipe high-strength concrete column node. S7. When this high-strength concrete steel pipe column joint is applied, the butt joint is installed in the butt joint. During the butt joint process, the inner reinforcing steel bar is also installed in the steel bar socket. At this time, the insert block is pushed by the claw and abuts against the slot. Then, it is fixed to the steel pipe column body by the flange, and the installation of the joint column body and the steel pipe column body can be completed. Finally, concrete is poured into the steel pipe column body and the joint column body.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are: 1. This high-strength concrete steel pipe column joint fixes the reinforcing positioning seat inside the steel pipe column body. Since the upper and lower ends of the joint column body are equipped with connecting mouthpieces and inner reinforcing bars, when the connecting mouthpiece is installed in the connecting interface, the inner reinforcing bars are also installed in the reinforcing bar insertion. At this time, the insertion block abuts against the slot under the push of the claw, thereby realizing the snap-fit ​​of the joint column body, further strengthening the bending resistance of the connection between the joint column body and the steel pipe column body, thus ensuring its stability and reliability after installation.

[0019] 2. In order to achieve smooth assembly of the mating nozzle and the mating interface, when the mating nozzle is assembled into the mating interface, the inclined claws will be gradually compressed. By opening the clearance groove, the claws can be smoothly closed, thereby ensuring the smooth assembly of the mating nozzle and the mating interface.

[0020] 3. In order to improve the fluidity of concrete, by opening a first conveying port, concrete can be conveyed not only from the opposite interface of the trough, but also from both the first and second conveying ports, thereby improving the fluidity of the concrete.

[0021] 4. In order to strengthen the fixation of the inner reinforcing steel bars in the steel bar spigot, a solidification groove is also opened on the inner wall of the steel bar spigot. Concrete will flow into the solidification groove, so that the inner reinforcing steel bars are completely fixed in the steel bar spigot, thereby improving the stability of the inner reinforcing steel bars after they are fixed. The inner reinforcing steel bars can strengthen the bending resistance of the connection between the node column and the steel pipe column.

[0022] 5. In order to further improve the fixing effect of the butt joint and the internal reinforcing steel bars, by installing the insert block, before the butt joint enters the butt joint, the insert block is mainly located in the butt joint due to the inclined setting. As the butt joint gradually enters the butt joint, the insert block is pushed by the claw and abuts against the slot, thereby realizing the snap-fit ​​of the node column. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the invention after installation with the steel pipe column. Figure 2 for Figure 1 Exploded view; Figure 3 From an overhead view Figure 2 3D structural diagram of the column body at the middle node; Figure 4 To look up Figure 2 3D structural diagram of the column body at the middle node; Figure 5 To showcase Figure 3 A sectional view of the internal structure; Figure 6 From an overhead view Figure 2 A three-dimensional structural diagram of the reinforced positioning seat; Figure 7 To look up Figure 2 A three-dimensional structural diagram of the reinforced positioning seat; Figure 8 To showcase Figure 6 A sectional view of the internal structure; Figure 9 for Figure 2 A three-dimensional structural diagram showing the reinforcement positioning seat fixed inside the steel pipe column. Figure 10 To showcase Figure 1 A sectional view of the internal structure; Figure 11 for Figure 10 A magnified view of a portion of point A in the middle.

[0025] In the diagram: 1-Node column body; 2-Connecting nozzle; 3-Claw; 4-Inner reinforcing steel bar; 5-Slot; 6-Reinforcing positioning seat; 7-Matching interface; 8-Reinforcing steel bar insertion; 9-Insertion block; 10-Allowing groove; 11-Feeding port one; 12-Feeding port two; 13-Consolidation tank; 14-Flange; 15-Steel pipe column body. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 11 As shown, a steel tube high-strength concrete column joint for beam-column connection includes a joint column body 1. The upper and lower ends of the node column 1 are fixedly connected with a docking mouth 2. The outer side of the opening of the docking mouth 2 has eight circumferentially distributed and inclined claws 3. The upper and lower ends of the node column 1 are fixed with eight circumferentially distributed inner reinforcing steel bars 4 with the docking mouth 2 as the center. Each inner reinforcing steel bar 4 has a slot 5 facing the docking mouth 2. The steel pipe high-strength concrete column joint also includes a reinforcing positioning seat 6 that works in conjunction with the butt joint 2 and the inner reinforcing steel bar 4. The center of the reinforcing positioning seat 6 is provided with a butt joint 7 that works in conjunction with the butt joint 2. The reinforcing positioning seat 6 is provided with steel bar insertion slots 8 arranged in a circular array with the butt joint 7 as the center. The reinforcing positioning seat 6 is provided with eight insertion blocks 9 arranged in a circular array with the butt joint 7 as the center. The reinforcing positioning seat 6 is fixedly connected to the steel pipe column body 15. The insertion blocks 9 are located between the butt joint 7 and the steel bar insertion slots 8. When the mating nozzle 2 is installed in the mating interface 7, the inner reinforcing steel bar 4 is also installed in the steel bar insertion port 8. At this time, the insertion block 9 is pushed by the claw 3 and abuts against the slot 5.

[0028] The steel pipe high-strength concrete column joint fixes the reinforcing positioning seat 6 inside the steel pipe column body 15. Since the upper and lower ends of the joint column body 1 are equipped with the connecting mouth 2 and the inner reinforcing steel bar 4, when the connecting mouth 2 is assembled into the connecting interface 7, the inner reinforcing steel bar 4 is also assembled into the steel bar insertion 8 at the same time. At this time, the insertion block 9 is pushed by the claw 3 and abuts against the slot 5, thereby realizing the snap-fit ​​of the joint column body 1, further strengthening the bending resistance of the connection between the joint column body 1 and the steel pipe column body 15, so as to ensure its stability and reliability after installation.

[0029] like Figure 4 As shown, the claw 3 is fixedly connected only to the mouth of the docking nozzle 2, and a clearance groove 10 is provided between each two adjacent claws 3.

[0030] In order to achieve smooth assembly of the mating nozzle 2 and the mating interface 7, when the mating nozzle 2 is assembled into the mating interface 7, the inclined claw 3 will be gradually compressed. By opening the clearance groove 10, the claw 3 can be smoothly closed, thereby ensuring the smooth assembly of the mating nozzle 2 and the mating interface 7.

[0031] like Figures 3 to 8 As shown, the upper and lower ends of the node column 1 are provided with eight material inlets 11 arranged in a circular array with the docking nozzle 2 as the center. Each material inlet 11 is located between two adjacent inner reinforcing bars 4. The reinforcing positioning seat 6 is provided with eight material inlets 12 arranged in a circular array with the docking nozzle 2 as the center. The positions of the material inlets 12 and 12 correspond vertically to the positions of the material inlets 11. The reinforcing positioning seat 6 is fixedly connected to the steel pipe column 15, and the upper surface of the reinforcing positioning seat 6 is an inclined slope that gradually decreases towards the docking interface 7.

[0032] To improve the fluidity of concrete, by opening a conveying port 11, concrete can be conveyed not only from the interface 7, but also from the conveying port 11 and the conveying port 2 12, thereby improving the fluidity of concrete.

[0033] like Figure 8 As shown, two solidification grooves 13 are also provided on the inner wall of the rebar insertion 8 along its length.

[0034] To strengthen the fixation of the inner reinforcing steel bar 4 in the steel bar spigot 8, a solidification groove 13 is provided on the inner wall of the steel bar spigot 8. Concrete will flow into the solidification groove 13, so that the inner reinforcing steel bar 4 is completely fixed in the steel bar spigot 8, thereby improving the stability of the inner reinforcing steel bar 4 after it is fixed. The inner reinforcing steel bar 4 can strengthen the bending resistance of the connection between the node column body 1 and the steel pipe column body 15.

[0035] like Figure 8 and Figure 11 As shown, the insert 9 located above the steel pipe column 15 gradually decreases from the location near the rebar insertion 8 to the location near the interface 7, while the insert 9 located below the steel pipe column 15 gradually increases from the location near the rebar insertion 8 to the location near the interface 7. Damping is provided between the contact surfaces of the insert 9 and the reinforcing positioning seat 6. The upper surface of the reinforcing positioning seat 6 located below the node column 1 is an inclined slope, which gradually decreases towards the interface 7. The lower surface of the reinforcing positioning seat 6 located above the node column 1 is an inclined slope, which gradually increases towards the interface 7.

[0036] In order to further improve the fixing effect of the butt joint 2 and the inner reinforcing steel bar 4, the insert block 9 is installed. Before the butt joint 2 enters the interface 7, the insert block 9 is mainly located in the interface 7 due to the inclined setting of the pin. As the butt joint 2 gradually enters the interface 7, the insert block 9 is pushed by the claw 3 and abuts against the slot 5, thereby realizing the snap-fit ​​of the node column body 1.

[0037] like Figure 3 As shown, flanges 14 for connecting steel pipe columns 15 are fixedly connected to both the upper and lower ends of the node column 1.

[0038] To connect the node column 1 and the steel pipe column 15, bolts and nuts are installed on the flange 14, which completes the quick installation of the node column 1 and the steel pipe column 15.

[0039] like Figures 1 to 11 As shown, a method for manufacturing a high-strength concrete steel tube column joint for beam-column connection is disclosed. This method can manufacture high-strength concrete steel tube column joints for beam-column connection, and the specific processing steps are as follows: S1. The node column 1 is obtained by integral molding of the mold, and the material inlet 11 is also integrally molded along with the node column 1. S2. Weld and fix the mating nozzle 2 at the upper and lower ends of the node column 1 respectively, and weld and fix the claw 3 on the outside of the opening of the mating nozzle 2. S3. A slot 5 is made on the inner reinforcing steel bar 4 using a machine tool, and then the inner reinforcing steel bar 4 is welded and fixed at the upper and lower ends of the node column body 1 respectively. S4. The reinforced positioning seat 6 is obtained by integral molding of the mold, wherein the steel bar insertion 8, the solidification groove 13 and the material conveying port 12 are also integrally molded with the node column body 1. S5. A slot is opened on the reinforcing positioning seat 6 at the location of the insert 9 using a machine tool, and then all inserts 9 are sequentially assembled into the slot. S6. The reinforcing positioning seat 6 is welded and fixed inside the steel pipe column body 15 to complete the processing and manufacturing of the steel pipe high-strength concrete column node. S7. When the high-strength concrete column joint of the steel pipe is applied, when the butt joint 2 is installed in the butt joint 7, the inner reinforcing steel bar 4 is also installed in the steel bar insertion 8 at the same time during the butt joint process. At this time, the insertion block 9 is pushed by the claw 3 and abuts against the slot 5. Then, it is fixed to the steel pipe column body 15 by the flange 14, and the installation of the joint column body 1 and the steel pipe column body 15 can be completed. Finally, concrete is poured into the steel pipe column body 15 and the joint column body 1.

[0040] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steel tube high-strength concrete column joint for beam-column connection, the steel tube high-strength concrete column joint comprising a joint column body (1); Its features are: The upper and lower ends of the node column (1) are fixedly connected with a docking mouth (2). The outer side of the opening of the docking mouth (2) is fixed with a circumferentially distributed and inclined claw (3). The upper and lower ends of the node column (1) are fixed with an inner reinforcing steel bar (4) distributed in a circumferential array with the docking mouth (2) as the center. Each inner reinforcing steel bar (4) has a slot (5) facing the docking mouth (2). The steel pipe high-strength concrete column joint also includes a reinforcing positioning seat (6) used in conjunction with the butt joint (2) and the inner reinforcing steel bar (4). The center of the reinforcing positioning seat (6) is provided with a butt joint (7) that mates with the butt joint (2). The reinforcing positioning seat (6) is provided with steel bar insertion slots (8) arranged in a circular array with the butt joint (7) as the center. The reinforcing positioning seat (6) is provided with insertion blocks (9) arranged in a circular array with the butt joint (7) as the center. The reinforcing positioning seat (6) is fixedly connected to the steel pipe column body (15). The insertion blocks (9) are located between the butt joint (7) and the steel bar insertion slots (8). When the mating nozzle (2) is installed in the mating interface (7), the inner reinforcing steel bar (4) is also installed in the steel bar socket (8). At this time, the insert (9) is pushed by the claw (3) and abuts against the slot (5).

2. The steel pipe high-strength concrete column joint for beam-column connection according to claim 1, characterized in that, The claw (3) is fixedly connected only to the mouth of the docking nozzle (2), and a clearance groove (10) is provided between each two adjacent claws (3).

3. The steel pipe high-strength concrete column joint for beam-column connection according to claim 2, characterized in that, The upper and lower ends of the node column (1) are provided with material inlets (11) arranged in a circular array with the connecting nozzle (2) as the center. Each material inlet (11) is located between two adjacent inner reinforcing bars (4).

4. The steel pipe high-strength concrete column joint for beam-column connection according to claim 3, characterized in that, The reinforced positioning seat (6) has a through-hole with a second material inlet (12) arranged in a circular array with the docking nozzle (2) as the center. The position of the second material inlet (12) corresponds vertically to the position of the first material inlet (11).

5. The steel-tube high-strength concrete column joint for beam-column connection according to claim 4, characterized in that, At least one solidification groove (13) is also provided on the inner wall of the steel bar insertion (8) along its length direction.

6. The steel-tube high-strength concrete column joint for beam-column connection according to claim 5, characterized in that, The insert (9) is inclined inside the reinforcing positioning seat (6). The insert (9) above the steel pipe column (15) gradually decreases from the location near the rebar insertion (8) to the location near the interface (7), and the insert (9) below the steel pipe column (15) gradually increases from the location near the rebar insertion (8) to the location near the interface (7).

7. The steel-tube high-strength concrete column joint for beam-column connection according to claim 6, characterized in that, Damping is provided between the contact surfaces of the insert (9) and the reinforcing positioning seat (6).

8. The steel-tube high-strength concrete column joint for beam-column connection according to claim 7, characterized in that, The upper and lower ends of the node column (1) are fixedly connected with flanges (14) for connecting the steel pipe column (15).

9. The steel-tube high-strength concrete column joint for beam-column connection according to claim 8, characterized in that, The upper surface of the reinforcing positioning seat (6) located below the node column (1) is an inclined slope, which gradually decreases towards the interface (7); the lower surface of the reinforcing positioning seat (6) located above the node column (1) is an inclined slope, which gradually increases towards the interface (7).

10. A method for manufacturing a steel-tube high-strength concrete column joint for beam-column connection, characterized in that, This method can be used to manufacture the steel tube high-strength concrete column joint for beam-column connection as described in claim 9. The specific processing steps are as follows: S1. The node column (1) is obtained by integral molding of the mold, wherein the material inlet (11) is also integrally molded along with the node column (1); S2. Weld and fix the upper and lower ends of the node column (1) respectively to the upper and lower ends, and weld and fix the upper claw (3) to the outside of the mouth of the upper and lower ends. S3. A slot (5) is made on the inner reinforcing steel bar (4) by a machine tool, and then the upper inner reinforcing steel bar (4) is welded and fixed to the upper and lower ends of the column body (1); S4. The reinforced positioning seat (6) is obtained by integral molding of the mold, wherein the steel bar insertion (8), solidification groove (13) and material conveying port II (12) are also integrally formed with the node column body (1); S5. The machine tool opens a groove on the reinforcing positioning seat (6) where the insert (9) is located, and then all the inserts (9) are assembled into the groove in sequence. S6. Weld the reinforcing positioning seat (6) into the steel pipe column body (15) to complete the processing and manufacturing of the steel pipe high-strength concrete column node. S7. When the steel pipe high-strength concrete column joint is applied, when the butt joint (2) is assembled into the butt joint (7), during the butt joint process, the inner reinforcing steel bar (4) is also assembled into the steel bar socket (8). At this time, the insert (9) is pushed by the claw (3) and abuts against the slot (5). Then, it is fixed to the steel pipe column body (15) by the flange (14), and the installation of the joint column body (1) and the steel pipe column body (15) can be completed. Finally, concrete is poured into the steel pipe column body (15) and the joint column body (1).

Citation Information

Patent Citations

  • Steel pipe high strength concrete column reinforcing joint and method for manufacturing same

    CN1095018C

  • Fabricated steel pipe casing reinforced concrete combined joint and construction method

    CN112376688A

  • Flat slab node structure suitable for steel pipe or concrete filled steel tubular column

    CN112900718A