U-shaped steel composite beam-concrete filled steel tubular column sleeve core beam type node structure
By adopting a core beam-type node in the node structure of U-shaped steel composite beam and steel pipe concrete column, and using the overlapping force transmission method of grooves and connecting members, the problems of high welding difficulty and difficult to guarantee the quality of the weld are solved, and the bearing capacity and ductility of the node are improved.
Patent Information
- Application Number
- CN202420610138.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-27
AI Technical Summary
The node connection between U-shaped steel composite beams and steel pipe concrete columns has problems such as high welding difficulty, high workload, difficult to guarantee the quality of the welds, and brittle welds in the cold bend area, resulting in reduced node bearing capacity and ductility.
The U-shaped steel composite beam-steel pipe concrete column sleeve core beam-type node structure is adopted. By opening a groove at the top of the lower steel pipe column, the connecting end of the connecting member is placed in the groove and extending through the groove to the outside of the lower steel pipe column, the overlapping transmission force between the U-shaped steel beam and the steel pipe concrete column is achieved, reducing or avoiding welding.
It reduces the difficulty and workload of the nodes, improves the quality of the welds, avoids the problem of brittleness in the cold bend area, and enhances the bearing capacity and ductility of the nodes.
Smart Images
Figure CN222595146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building structures, in particular to a U-shaped steel composite beam-steel tube concrete column sleeve core beam type node structure. Background Art
[0002] When the U-shaped steel composite beam is connected to the column, the beam-column node is the key to the structural force. Since the U-shaped steel is a semi-closed section, when this beam-column node is connected using traditional inner partitions, through partitions or outer ring plates, due to the simultaneous existence of overhead welding, vertical welding and flat welding processes, on-site welding is difficult, the welding workload is large, and the weld quality is difficult to guarantee. In addition, cold-bent U-shaped steel has cold-bending zone welding, which makes the weld brittle, resulting in reduced node bearing capacity and ductility. Utility Model Content
[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a U-shaped steel composite beam-steel tube concrete column angle steel reinforced connection node to solve the problems of high welding difficulty, large welding workload, difficult to ensure weld quality, brittle welds in cold bending areas, and reduced node bearing capacity and ductility in the prior art.
[0004] To solve the above technical problems, the utility model adopts the following technical solutions:
[0005] A U-shaped steel composite beam-steel tube concrete column sleeve core beam type node structure, including an upper steel tube column, a lower steel tube column and multiple steel beams, including a connecting member, the connecting member is cross-shaped and has four connecting ends; the upper steel tube column is located above the connecting member, and its lower end is fixedly connected to the upper side of the connecting member; a plurality of grooves are opened at the top end of the lower steel tube column, and the grooves extend downward from the top end of the lower steel tube column along its length direction; the middle part of the connecting member is located in the lower steel tube column, so that the connecting end of the connecting member is placed in the groove and extends through the groove to the outside of the lower steel tube column; the top end of the lower steel tube column is fixedly connected to the lower end of the upper steel tube column; the connecting end of the connecting member is fixedly connected to one end of the steel beam.
[0006] Preferably, the connecting member includes a cross-shaped box body; a main core beam and at least one secondary core beam are arranged in the box body, and the main core beam and the secondary core beam are cross-arranged and fixedly connected, and placed in the box body; the top ends of the side walls of the box body are fixedly connected to the upper sides of the main core beam and the secondary core beam, respectively.
[0007] Preferably, the box body includes at least two U-shaped steels, which are arranged in a cross shape so that a gap that can accommodate the main core beam and the secondary core beam is formed inside the two U-shaped steels; the upper end edges of the two side walls of the U-shaped steel are bent inward to form upper flanges, and the main core beam and the secondary core beam are both I-beams, and the upper flanges of the U-shaped steels are respectively fixedly connected to the upper sides of the I-beams.
[0008] Preferably, the steel beam is a U-shaped steel beam, one end of which is located between the upper and lower steel pipe columns and is fixedly connected to the upper and lower steel pipe columns respectively, and the connecting end of the connecting member extends into the U-shaped steel beam and is fixedly connected thereto.
[0009] Preferably, a plurality of connecting plates I are provided above the lower steel pipe column, and the lower side of the connecting plate I is fixedly connected to the top end of the lower steel pipe column; a connecting plate II is provided at the lower end of the upper steel pipe column, and the upper side of the connecting plate II is fixedly connected to the lower end of the upper steel pipe column, and the upper steel pipe column is fixedly connected to the connecting plate I through the connecting plate II; an opening I is provided in the middle of the connecting plate II, and the interior of the upper steel pipe column can be connected with the interior of the connecting member and the interior of the U-shaped steel beam through the opening I.
[0010] Preferably, a reinforcing member is provided between every two adjacent steel beams, and the length direction of the reinforcing member is consistent with the length direction of the lower steel pipe column; the cross-section of the reinforcing member is L-shaped, and the edges on both sides along its length direction are bent inward to form fixed ends, and the reinforcing member is fixedly connected to adjacent outer walls of two adjacent steel beams through the fixed ends.
[0011] Preferably, a plurality of plug-ins are provided on the connecting member, and the upper and lower ends of the plug-ins respectively extend into the interior of the upper steel pipe column and the interior of the lower steel pipe column after penetrating the upper and lower opposite sides of the connecting member and the upper and lower opposite sides of the steel beam.
[0012] Preferably, an inner partition is provided on the upper side of the interior of the lower steel pipe column, and the inner partition is fixedly connected to the inner wall of the lower steel pipe column; a plurality of through holes are opened on the inner partition at positions corresponding to the plug-ins, and the through holes correspond to the plug-ins one by one, so that the lower end of the plug-in can pass through the corresponding through holes on the inner partition and extend into the interior of the lower steel pipe column; an opening is also provided in the middle of the inner partition, and the opening passes through the opposite side walls of the inner partition.
[0013] Compared with the prior art, the utility model has the following advantages:
[0014] 1. The utility model can directly place the U-shaped steel beam on the groove of the lower column, and then overlap and transmit force between the U-shaped steel beam and the steel tube concrete column through a cross-shaped connector and a plug-in. This connection method requires only a small amount of welding or no welding between the U-shaped steel beam and the steel tube concrete column to achieve connection with the steel tube concrete column. This structure greatly reduces the amount of on-site welding at the node and avoids welding in the cold bending area of the U-shaped steel beam, making it easy to ensure the quality of the weld. At the same time, the groove at the upper end of the lower column is used to place the U-shaped beam, the installation allowable error is large, the construction efficiency is improved, and the construction period is shortened.
[0015] 2. The U-shaped steel beam and the internal concrete of the steel pipe column of the utility model form a whole at the node. At the same time, the edges on both sides of the reinforcement member along its length direction are bent inward to form fixed ends, which enhances the integrity of the open steel pipe and improves the restraining effect of the steel pipe on the concrete in the node area, thereby improving the bearing capacity and ductility of the node. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of a U-shaped steel composite beam-steel tube concrete column sleeve core beam type node structure of the utility model.
[0017] Figure 2 This is a schematic diagram of the structure after the connecting components and reinforcing components are installed.
[0018] Figure 3 A structural schematic diagram of an implementation scheme of a connecting component.
[0019] In the figure: upper steel pipe column 1, lower steel pipe column 2, steel beam 3, main core beam 4, secondary core beam 5, U-shaped steel 6, connecting plate I 7, connecting plate II 8, reinforcing member 9, fixed end 10, plug-in 11, inner partition 12. DETAILED DESCRIPTION
[0020] The present invention will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the present invention belong to the scope of protection of the present invention.
[0021] The utility model provides a U-shaped steel composite beam-steel tube concrete column sleeve core beam type node structure, such as Figure 1~2 As shown, it includes an upper steel pipe column 1, a lower steel pipe column 2 and a plurality of steel beams 3, including a connecting member, which is cross-shaped and has four connecting ends; the upper steel pipe column is located above the connecting member, and its lower end is fixedly connected to the upper side of the connecting member; a slot is provided at the top of the lower steel pipe column 2, and the slot extends downward from the top of the lower steel pipe column along its length direction. The slot is located on the side wall of the lower steel pipe column and corresponds to the position of the connecting end of the connecting member. The middle part of the connecting member is located in the lower steel pipe column, so that the connecting end of the connecting member is placed in the slot, and the connecting end of the connecting member can pass through the slot of the lower steel pipe column and extend to the outside of the lower steel pipe column. Preferably, the center line of the connecting member coincides with the axis of the lower steel pipe column, so that the connecting member can be located at the center position in the lower steel pipe column, and such a design can further improve the stability of the node structure. The top of the lower steel pipe column is fixedly connected to the lower end of the upper steel pipe column; the connecting end of the connecting member is fixedly connected to one end of the steel beam.
[0022] In a specific implementation, the connecting member includes a cross-shaped box. A main core beam 4 and at least one secondary core beam 5 are arranged in the box. The main core beam and the secondary core beam are arranged cross-shaped and then fixedly connected and placed in the box, so that the main core beam and the secondary core beam are assembled in the same shape as the box, both in a cross shape, so that the assembled main core beam and the secondary core beam can be placed in the box at the same time. The top of the side wall of the box is fixedly connected to the upper side of the main core beam and the secondary core beam respectively. Here, there can be many specific implementations of the cross-shaped cross-arrangement of the main core beam and the secondary core beam. For example, a main core beam and a secondary core beam can be used, and a groove is respectively opened on the lower side of the main core beam and a groove is opened on the upper side of the secondary core beam, so that the two can be cross-arranged with a mortise and tenon structure; at the same time, a main core beam and two secondary core beams can also be used, and the two secondary core beams are located on the two sides of the main core beam that are away from each other, and one end of the secondary core beam is fixedly connected to the two sides of the main core beam that are away from each other, and the axes of the main core beam and the secondary core beam are perpendicular to each other, so that the main core beam and the secondary core beam form a cross structure. In this embodiment, the box body can be obtained by integral molding, and other embodiments can also be adopted. For example, such as Figures 1 to 3 As shown, the box body includes at least two U-shaped steels 6, and the two U-shaped steels are cross-arranged in a cross shape. The specific arrangement method can refer to the cross-arrangement method of the main core beam and the secondary core beam, that is, they can be cross-arranged through mortise and tenon structures, or two corresponding U-shaped steels can be arranged on both sides of one of the U-shaped steels, or four U-shaped steels can be arranged in a cross shape and then fixedly connected. Regardless of which arrangement method is adopted, it is necessary to ensure that the interior of the box body obtained in this way is interconnected and has space to accommodate the main core beam and the secondary core beam. The upper end edges of the two side walls of the U-shaped steel are bent inward to form upper flanges. The main core beam and the secondary core beam are both I-beams. The upper flanges of the U-shaped steel are respectively fixedly connected to the upper side of the I-beam, which improves the integrity between the main core beam, the secondary core beam and the box body, so that they can play a role in the force transmission process.
[0023] In some embodiments, the steel beam is a U-shaped steel beam, one end of which is located between the upper and lower steel pipe columns and is fixedly connected to the upper and lower steel pipe columns respectively, and the connecting end of the connecting member extends into the U-shaped steel beam and is fixedly connected thereto, wherein the upper surface of the connecting member may be flush with the upper surface of the U-shaped steel beam, or may not be flush so that the upper surface of the connecting member is located above or below the upper surface of the U-shaped steel beam, and whichever method is selected will not affect the stability of the overall node. However, it should be noted that the interior of the connecting member is connected to the interior of the U-shaped steel beam, and at the same time, the lower side of the connecting member is at a distance from the bottom of the U-shaped steel beam, so that when pouring concrete, the connecting member and the U-shaped steel beam can be temporarily fixed to prevent the positions of the two from changing. When pouring concrete, the concrete inside the connecting member can flow into the U-shaped steel beam, and then flow into the lower steel pipe column through the distance between the lower surface of the inner side of the U-shaped steel beam and the lower side of the connecting member, so that it forms a whole with the concrete inside the U-shaped steel beam, thereby realizing a fixed connection between the connecting member and the U-shaped steel beam, and at the same time, the concrete inside the connecting member can also form a whole with the concrete inside the U-shaped steel beam, the upper steel pipe column and the lower steel pipe column, thereby consolidating the stability of the node structure.
[0024] On the basis of the above embodiments, there can be multiple ways of connecting the connecting member and the upper and lower steel pipe columns. In the present utility model, a plurality of connecting plates I 7 are provided above the lower steel pipe column, and the lower side of the connecting plate I is fixedly connected to the top of the lower steel pipe column. A connecting plate II 8 is provided at the lower end of the upper steel pipe column, and the upper side of the connecting plate II is fixedly connected to the lower end of the upper steel pipe column. The upper steel pipe column is fixedly connected to the connecting plate I through the connecting plate II, that is, the connecting plate I and the connecting plate II can be fixedly connected by high-strength bolts. An opening I is provided in the middle of the connecting plate II, and the interior of the upper steel pipe column can be connected to the interior of the connecting member and the interior of the U-shaped steel beam through the opening I. When pouring concrete, the concrete can flow from the upper steel pipe column through the opening I into the interior of the connecting member, and then further flow into the interior of the U-shaped steel beam, so that the concrete inside the three can form a whole.
[0025] On the basis of the above embodiment, a reinforcing member 9 is further provided between every two adjacent steel beams, and the length direction of the reinforcing member is consistent with the length direction of the lower steel pipe column. The cross section of the reinforcing member is L-shaped, and the edges on both sides along the length direction are bent inward to form a fixed end 10. The reinforcing member is fixedly connected to an adjacent outer side wall of two adjacent steel beams through the fixed end, specifically, the outer side wall of the fixed end of the reinforcing member is fixedly connected to the adjacent outer side wall of two adjacent steel beams. The reinforcing member can not only fix the position of the steel beam, but also strengthen the node from the outside.
[0026] On the basis of the above embodiment, a plurality of plug-ins 11 are further provided on the connecting member, and the upper and lower ends of the plug-ins extend into the interior of the upper steel pipe column and the interior of the lower steel pipe column respectively after penetrating the upper and lower opposite sides of the connecting member and the upper and lower opposite sides of the steel beam. These plug-ins can realize the position and connection fixation between the connecting member and the U-shaped steel beam, which can not only ensure that the connecting member is in the correct position, but also realize the connection between it and the U-shaped steel beam. At the same time, due to the disconnection between the upper steel pipe column and the lower steel pipe column, the upper and lower force transmission is interrupted, and the plug-ins here can just play the role of upper and lower force transmission, especially this role can cooperate with the reinforcement member to transmit force from the inside to the outside. An inner partition 12 is provided on the upper side of the interior of the lower steel pipe column, and the inner partition is fixedly connected to the inner wall of the lower steel pipe column. A plurality of through holes are provided on the inner partition at positions corresponding to the plug-ins, and the through holes correspond to the plug-ins one by one, so that the lower end of the plug-in can pass through the corresponding through holes on the inner partition and extend into the lower steel pipe column. At the same time, the diameter of the through hole is larger than the diameter of the plug-in, so that concrete can also flow into the lower steel pipe column through the through hole, and then the plug-in can be anchored inside the concrete, which can enhance the connection effect between it and the concrete. An opening II is also provided in the middle of the inner partition, and the opening II passes through the opposite side walls of the inner partition, so that concrete can flow from the gap between the upper and lower steel pipe columns of the U-shaped steel beam to the top of the inner partition, and then flow into the lower steel pipe column through the opening II on the inner partition, so that the upper and lower steel pipe columns, the connecting member and the concrete in the U-shaped steel beam form a whole.
[0027] The present invention is not limited to the above-mentioned implementation modes, and any structure that is the same or similar to the above-mentioned embodiments of the present invention is within the protection scope of the present invention.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the technical solution. Ordinary technicians in this field should understand that those modifications or equivalent replacements of the technical solution of the utility model without departing from the purpose and scope of the technical solution of the utility model should be included in the scope of the claims of the utility model.
Claims
1. A U-shaped steel composite beam-steel tube concrete column sleeve core beam type node structure, comprising an upper steel tube column (1), a lower steel tube column (2) and a plurality of steel beams (3), characterized in that: It includes a connecting member, which is cross-shaped and has four connecting ends; the upper steel pipe column is located above the connecting member, and its lower end is fixedly connected to the upper side of the connecting member; a plurality of slots are opened at the top of the lower steel pipe column, and the slots extend from the top of the lower steel pipe column along its length direction; the middle part of the connecting member is located in the lower steel pipe column, so that the connecting end of the connecting member is placed in the slot and extends through the slot to the outside of the lower steel pipe column; the top of the lower steel pipe column is fixedly connected to the lower end of the upper steel pipe column; the connecting end of the connecting member is fixedly connected to one end of the steel beam.
2. According to claim 1, the U-shaped steel composite beam-steel tube concrete column sleeve core beam node structure is characterized in that: The connecting member comprises a cross-shaped box body; a main core beam (4) and at least one secondary core beam (5) are arranged in the box body, the main core beam and the secondary core beam are arranged cross-shaped and fixedly connected, and are placed in the box body; the top ends of the side walls of the box body are respectively fixedly connected to the upper sides of the main core beam and the secondary core beam.
3. The U-shaped steel composite beam-steel tube concrete column sleeve core beam node structure according to claim 2 is characterized in that: The box body comprises at least two U-shaped steels (6), which are arranged crosswise and connected in a cross shape, so that a gap capable of accommodating the main core beam and the secondary core beam is formed inside the two U-shaped steels; the upper end edges of the two side walls of the U-shaped steel are bent inward to form upper flanges, the main core beam and the secondary core beam are both I-shaped steels, and the upper flanges of the U-shaped steels are respectively fixedly connected to the upper sides of the I-shaped steels.
4. The U-shaped steel composite beam-steel tube concrete column sleeve core beam node structure according to any one of claims 1 to 3, characterized in that: The steel beam is a U-shaped steel beam, one end of which is located between the upper and lower steel pipe columns and is fixedly connected to the upper and lower steel pipe columns respectively, and the connecting end of the connecting component extends into the U-shaped steel beam and is fixedly connected thereto.
5. The U-shaped steel composite beam-steel tube concrete column sleeve core beam node structure according to claim 4 is characterized in that: A plurality of connection plates I (7) are provided above the lower steel pipe column, and the lower side of the connection plate I is fixedly connected to the top end of the lower steel pipe column; a connection plate II (8) is provided at the lower end of the upper steel pipe column, and the upper side of the connection plate II is fixedly connected to the lower end of the upper steel pipe column, and the upper steel pipe column is fixedly connected to the connection plate I through the connection plate II; an opening I is provided in the middle of the connection plate II, and the interior of the upper steel pipe column can be connected with the interior of the connection member and the interior of the U-shaped steel beam through the opening I.
6. The U-shaped steel composite beam-steel tube concrete column sleeve core beam node structure according to claim 4 is characterized in that: A reinforcing member (9) is also provided between every two adjacent steel beams, wherein the length direction of the reinforcing member is consistent with the length direction of the lower steel pipe column; the reinforcing member has an L-shaped cross section, and both side edges along its length direction are bent inward to form fixed ends (10), and the reinforcing member is fixedly connected to adjacent outer side walls of two adjacent steel beams through the fixed ends.
7. The U-shaped steel composite beam-steel tube concrete column sleeve core beam node structure according to claim 4 is characterized in that: A plurality of plug-ins (11) are also provided on the connection member, and the upper and lower ends of the plug-ins respectively extend into the interior of the upper steel pipe column and the interior of the lower steel pipe column after penetrating the upper and lower opposite sides of the connection member and the upper and lower opposite sides of the steel beam.
8. The U-shaped steel composite beam-steel tube concrete column sleeve core beam node structure according to claim 7 is characterized in that: An inner partition (12) is provided on the upper side of the interior of the lower steel pipe column, and the inner partition is fixedly connected to the inner wall of the lower steel pipe column; a plurality of through holes are provided on the inner partition at positions corresponding to the plug-ins, and the through holes correspond to the plug-ins one by one, so that the lower end of the plug-in can pass through the corresponding through holes on the inner partition and extend into the interior of the lower steel pipe column; an opening II is also provided in the middle of the inner partition, and the opening II passes through the opposite side walls of the inner partition.