Recoverable steel joint for assembling embedded steel pipe column

Abstract

The utility model relates to a recoverable steel joint for assembling an embedded steel pipe column, which comprises an upper column, a lower column, a lower column and a steel joint, an inserting hole is formed in the upper end of the lower column, and the upper column is inserted into the inserting hole of the lower column through the inserting part; the upper portion of the adapter is welded to one side of the upper column, and a plurality of through connecting holes are oppositely formed in the lower portion of the adapter, the inserting portion and the side wall of the inserting hole and used for allowing bolt assemblies to penetrate through so that the upper column and the lower column can be fixedly connected; and the at least one beam module is detachably connected with the adapter through a bolt assembly. According to the recoverable steel joint for assembling the embedded steel pipe column, the upper column, the lower column and the beam module can be disassembled, repaired and reassembled, and meanwhile the overall stability of the joint is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of steel structure design, in particular to an assembled embedded steel pipe column recoverable steel node. Background Art

[0002] The node form of steel structure is a very important part of steel structure design, which is related to the bearing capacity, stability and overall performance of the structure. In construction, steel nodes are usually connected by welding, bolt welding or bolt connection. Welded nodes have the advantages of simple construction, high connection strength and good sealing performance. However, when the beam is damaged and needs maintenance and replacement, welded nodes are not easy to disassemble and reinstall; bolt connection nodes are easy to construct and install quickly, and are suitable for structures that need to be assembled or disassembled quickly, but this method has the defect of loose bolts. Loose bolts may be caused by improper installation, long use time or load exceeding the design range. Loose bolts reduce the stiffness and strength of the connection parts, which has an adverse effect on the overall stability of the steel structure. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a recoverable steel node of an assembled embedded steel pipe column, which can be disassembled, repaired and reassembled between the upper column, the lower column and the beam module, while ensuring the overall stability of the node.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] An assembled embedded steel pipe column recoverable steel node comprises:

[0006] An upper column, the lower end of which is provided with a protruding plug-in portion;

[0007] A lower column, the upper end of which is provided with a plug-in hole, and the upper column is plugged into the plug-in hole of the lower column through the plug-in portion;

[0008] At least one adapter, the upper portion of which is welded to one side of the upper column, and a plurality of through connection holes are provided on the lower portion of the adapter, the plug portion and the side wall of the plug hole for passing bolt assemblies to fix the upper column and the lower column in connection;

[0009] At least one beam module is detachably connected to the adapter via a bolt assembly.

[0010] As a preferred embodiment, the adapter adopts a vertically arranged H-shaped steel, which includes:

[0011] A first wing plate, the upper portion of which is welded to one side of the upper column, and the lower portion of which is provided with a plurality of connection holes opposite to the plug-in portion and the side wall of the plug-in hole;

[0012] a second wing panel detachably connected to the beam module by applying a bolt assembly;

[0013] The web plate is connected and arranged between the first wing plate and the second wing plate.

[0014] As a preferred embodiment, two rib assemblies are symmetrically arranged on both sides of the web, and the rib assemblies include a plurality of ribs fixedly arranged on one side of the web at intervals along the vertical direction, and the ribs are connected and arranged between the first wing plate and the second wing plate.

[0015] As a preferred embodiment, the rib assembly includes a middle rib and a plurality of end ribs symmetrically arranged on both sides of the middle rib, the middle rib is arranged in the middle of the web, the width of the middle rib is greater than the width of the end ribs, and the middle rib corresponds to the middle of the beam module.

[0016] As a preferred embodiment, two shear connectors are symmetrically arranged on both sides of the web, and the two shear connectors are fixedly connected to the web by passing a bolt assembly, and the two ends of the shear connectors are respectively abutted against the first wing plate and the second wing plate to increase the shear resistance of the adapter.

[0017] As a preferred embodiment, the upper column and the lower column both adopt a box-type column structure, and the plug-in portion includes a plurality of enclosures fixed on the lower end of the upper column, the shape and size of the enclosures are compatible with the shape and size of the upper column, and the vertical through hole in the middle of the lower column forms the plug-in hole.

[0018] As a preferred embodiment, a reinforcement member is provided between two opposite enclosure plates of the plug-in portion;

[0019] The reinforcement piece is tubular and has a reinforcement hole inside. Long through bolt holes are provided on the lower part of the adapter, the enclosure of the plug-in part and the side wall of the plug-in hole corresponding to the reinforcement hole. The long bolt hole and the reinforcement hole are used to pass a semi-threaded screw, and the optical axis of the semi-threaded screw is interference fit with the reinforcement hole.

[0020] The beneficial effects of adopting the above technical solution are:

[0021] The present application provides a new idea for the connection of nodes. The traditional connection between box-type columns and H-shaped steel beams is welding or end plate connection. The present application divides the box-type column into two parts, the upper column, the lower column and the beam module are connected together through an adapter, which is convenient for disassembly and installation while taking into account the stability of the node, providing convenient conditions for subsequent disassembly and post-earthquake repair. In addition, in order to increase the strength of the adapter, a shear connector and a rib are arranged in the middle, so that the node as a whole can achieve a better earthquake resistance effect. The present application arranges a tubular reinforcement between the two opposite enclosures of the plug-in part, and a through long bolt hole is opened on the lower part of the adapter, the enclosure of the plug-in part and the side wall of the plug-in hole corresponding to the reinforcement hole. A semi-threaded screw is inserted into the long bolt hole and the reinforcement hole of the reinforcement member. The optical axis of the semi-threaded screw and the reinforcement hole are interference fit, which increases the connection strength of the adapter, the upper column and the lower column, and further increases the stability of the node. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an embodiment.

[0023] Figure 2 It is a structural schematic diagram of the embodiment from another angle.

[0024] Figure 3 yes Figure 1 Schematic diagram of the structure at A in the middle.

[0025] Figure 4 It is a structural schematic diagram of an upper column, a lower column, a beam module and a shear connector of an embodiment.

[0026] Figure 5 It is a front view of the upper column of the embodiment.

[0027] Among them: 1 upper column; 1-1 plug-in part;

[0028] 2 lower column; 2-1 first connecting hole; 2-2 second connecting hole; 2-3 third connecting hole;

[0029] 3 beam module; 3-1 beam end connection plate; 3-2 beam body; 3-3 beam rib plate;

[0030] 4 adapter; 4-1 web; 4-2 first wing plate; 4-3 second wing plate; 4-4 end rib plate; 4-5 middle rib plate; 4-6 fourth connecting hole; 4-7 fifth connecting hole;

[0031] 5 Shear connectors;

[0032] 6 Reinforcement. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model is clearly and completely described below in conjunction with specific embodiments.

[0034] like Figures 1 to 5 The assembled embedded steel pipe column can restore the steel node shown, which includes:

[0035] An upper column 1, the lower end of which is provided with a protruding plug-in portion 1-1;

[0036] The lower column 2 has an inserting hole at its upper end, and the upper column 1 is inserted into the inserting hole of the lower column 2 through the inserting portion 1-1;

[0037] An adapter 4, the upper part of which is welded to one side of the upper column 1, and a plurality of through connection holes are relatively opened on the lower part of the adapter 4, the plug-in portion 1-1 and the side wall of the plug-in hole, and after the upper column 1 and the lower column 2 are inserted into place, bolt assemblies are inserted into the connection holes to fix the upper column 1 and the lower column 2 in connection;

[0038] A beam module 3 is detachably connected to the adapter 4 through a bolt assembly. Specifically, it includes a beam end connecting plate 3-1 connected and fixed to the adapter 4 through a bolt assembly and a beam body 3-2 arranged on one side of the beam end connecting plate 3-1. The other end of the beam body 3-2 can be connected to the adapter 4 of the adjacent node through another beam end connecting plate 3-1. The beam body 3-2 adopts an I-beam, and a beam rib 3-3 can be arranged on the web of the middle section to increase the strength of the beam body.

[0039] See also Figures 1 to 4 The adapter 4 is a vertically arranged H-shaped steel, which includes:

[0040] The first wing plate 4-2 has an upper portion welded to one side of the upper column 1, and a lower portion thereof is provided with a plurality of connection holes opposite to the plug-in portion 1-1 and the side wall of the plug-in hole, see Figure 3 and Figure 4 The connection holes include a fourth connection hole 4-6 opened at the lower part of the adapter 4, a through hole opened at one side of the plug-in portion 1-1, and a first connection hole 2-1 at one side of the lower column 2;

[0041] A second wing panel 4 - 3 detachably connected to the beam module 3 by applying a bolt assembly;

[0042] The web 4 - 1 is connected and arranged between the first wing plate 4 - 2 and the second wing plate 4 - 3 .

[0043] See also Figure 3, two rib assemblies are symmetrically arranged on both sides of the web 4-1, and the rib assembly includes a plurality of ribs fixedly arranged on one side of the web 4-1 at intervals in the vertical direction, and the ribs are connected and arranged between the first wing 4-2 and the second wing 4-3. The rib assembly includes a middle rib 4-5 and a plurality of end ribs 4-4 symmetrically arranged on both sides of the middle rib 4-5, and the middle rib 4-5 is arranged in the middle of the web 4-1, and the width of the middle rib 4-5 is greater than the width of the end rib 4-4. The beam body 3-2 of the beam module 3 of this embodiment adopts I-shaped steel, and the middle rib 4-5 corresponds to the middle of the web of the beam body 3-2, so that the connection line of the two middle ribs 4-5 and the middle of the web of the beam body 3-2 are in a cross shape, which is used to strengthen the seismic performance of the weak part (web) of the beam body 3-2.

[0044] See also Figures 3 to 5 Two shear connectors 5 are symmetrically arranged on both sides of the web 4-1. The shear connectors 5 are in the shape of long strips or I-beams (long strips are used in this embodiment). The two shear connectors 5 are fixedly connected to the web 4-1 by passing bolt assemblies. The two ends of the shear connectors 5 are respectively against the first wing plate 4-2 and the second wing plate 4-3 (the length of the shear connector 5 is slightly larger than the distance between the first wing plate 4-2 and the second wing plate 4-3) to increase the shear resistance of the adapter 4 (resisting the shear force in the direction of the connection line between the first wing plate 4-2 and the second wing plate 4-3).

[0045] See also Figures 1 to 4 The upper column 1 and the lower column 2 both adopt a box-type column structure. The plug-in portion 1-1 includes a plurality of enclosures fixed on the lower end of the upper column 1. The shape and size of the enclosures are compatible with the shape and size of the upper column 1. The vertical through hole in the middle of the lower column 2 forms the plug-in hole.

[0046] In this embodiment, adapters 4 can be set on the four sides of the box-type columnar upper column 1, which can be used to simultaneously connect up to four beam modules 3, wherein the connection holes of two opposite adapters 4 are connected; the connection holes of two circumferentially adjacent adapters 4 are staggered to avoid interference between the bolt assemblies.

[0047] See also Figure 4 A reinforcement piece 6 is arranged between the two opposite enclosures of the plug-in part 1-1; the reinforcement piece 6 is tubular, and a reinforcement hole is arranged inside it. A through long bolt hole corresponding to the reinforcement hole is opened on the lower part of the adapter 4, the enclosure of the plug-in part 1-1 and the side wall of the plug-in hole. The long bolt hole and the reinforcement hole are opposite to each other for passing a semi-threaded screw, and the optical axis of the semi-threaded screw is arranged with an interference fit with the reinforcement hole.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A recoverable steel node for assembling an embedded steel pipe column, characterized in that: It includes: An upper column (1), the lower end of which is provided with a protruding plug-in portion (1-1); A lower column (2) having an inserting hole at its upper end, wherein the upper column (1) is inserted into the inserting hole of the lower column (2) via the inserting portion (1-1); At least one adapter (4), the upper portion of the adapter (4) being welded to one side of the upper column (1), and the lower portion of the adapter (4), the plug-in portion (1-1) and the side wall of the plug-in hole being provided with a plurality of through connection holes for passing bolt assemblies to fix the upper column (1) and the lower column (2) in connection; At least one beam module (3) which is detachably connected to the adapter (4) via a bolt assembly; The adapter (4) is a vertically arranged H-shaped steel, comprising: A first wing plate (4-2), the upper portion of which is welded to one side of the upper column (1), and the lower portion of which is provided with a plurality of connection holes opposite to the plug-in portion (1-1) and the side wall of the plug-in hole; A second wing panel (4-3) which is detachably connected to the beam module (3) by applying a bolt assembly; The web plate (4-1) is connected and arranged between the first wing plate (4-2) and the second wing plate (4-3).

2. The recoverable steel node for assembling an embedded steel pipe column according to claim 1, characterized in that: Two rib plate assemblies are symmetrically arranged on both sides of the web (4-1), the rib plate assembly comprising a plurality of rib plates fixedly arranged at intervals on one side of the web (4-1) in a vertical direction, and the rib plates are connected and arranged between the first wing plate (4-2) and the second wing plate (4-3).

3. The recoverable steel node for assembling an embedded steel pipe column according to claim 2, characterized in that: The rib plate assembly comprises a middle rib plate (4-5) and a plurality of end rib plates (4-4) symmetrically arranged on both sides of the middle rib plate (4-5), the middle rib plate (4-5) being arranged in the middle of the web plate (4-1), the width of the middle rib plate (4-5) being greater than the width of the end rib plates (4-4), and the middle rib plate (4-5) corresponding to the middle of the beam module (3).

4. The recoverable steel node for assembling an embedded steel pipe column according to claim 3, characterized in that: Two shear connectors (5) are symmetrically arranged on both sides of the web (4-1); the two shear connectors (5) are fixedly connected to the web (4-1) by passing a bolt assembly; two ends of the shear connectors (5) are respectively abutted against the first wing plate (4-2) and the second wing plate (4-3) to increase the shear resistance of the adapter (4).

5. The recoverable steel node for assembling an embedded steel pipe column according to claim 1, characterized in that: The upper column (1) and the lower column (2) both adopt a box-type column structure, the plug-in portion (1-1) comprises a plurality of enclosures fixedly mounted on the lower end of the upper column (1), the shape and size of the enclosures being compatible with the shape and size of the upper column (1), and a vertical through hole in the middle of the lower column (2) forming the plug-in hole.

6. The recoverable steel node for assembling an embedded steel pipe column according to claim 5, characterized in that: A reinforcing member (6) is provided between two opposite enclosure plates of the plug-in portion (1-1); The reinforcing member (6) is tubular and has a reinforcing hole therein. Long through bolt holes are provided on the lower portion of the adapter (4), the enclosure of the plug-in portion (1-1) and the side wall of the plug-in hole corresponding to the reinforcing hole. The long bolt hole is used to pass a semi-threaded screw relative to the reinforcing hole. The optical axis of the semi-threaded screw is interference-fitted with the reinforcing hole.

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