Buckling restrained brace connecting node of steel pipe concrete composite column steel beam frame

Abstract

The utility model discloses a buckling restrained brace connecting node for a steel beam frame of a concrete-filled steel tube composite column, which comprises a node vertical plate, a horizontal edge sealing rib plate and a vertical edge sealing rib plate, and the node vertical plate is vertically arranged at the connecting node of the concrete-filled steel tube composite column and the steel frame beam. The end face of the side, close to the concrete filled steel tube composite column, of the node vertical plate penetrates through out-of-tube concrete of the concrete filled steel tube composite column and is fixedly welded to the core steel tube, and the end face of the side, close to the steel frame beam, of the node vertical plate abuts against the steel frame beam and is fixedly welded to the steel frame beam. An inner side plate body of the joint vertical plate is arranged on the core steel pipe in a sleeving mode and is fixedly welded to the core steel pipe, and the vertical edge sealing rib plate is vertically welded to the end face of the side, away from the concrete filled steel tube composite column, of the joint vertical plate and is fixedly welded to the steel frame beam. The composite column structure is simple in structure, reliable in force transmission, easy to construct and high in applicability, and the anti-seismic performance of a traditional composite column structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of house building structures, in particular to a buckling restrained brace connection node of a steel tube concrete composite column steel beam frame. Background Art

[0002] The composite column of steel tube concrete is a column composed of a central circular steel tube concrete column and a steel tube outer reinforced concrete, referred to as a composite column. As a special form of steel frame concrete column, the composite column has the characteristics of high vertical bearing capacity. As a displacement damper, the buckling restrained support has excellent hysteresis performance and good energy dissipation effect, and can provide considerable lateral stiffness and additional damping ratio for the main structure. The introduction of buckling restrained support in the composite column-steel beam frame can give full play to the performance advantages of both. However, this structural form has not been applied in engineering. The connection node between the composite column and the buckling restrained support involves structural components such as the steel tube concrete core column, the outer concrete, the steel bar and the steel beam, and the structure is complicated. Therefore, how to provide a connection node structure for the composite column of steel tube concrete, the steel beam frame and the buckling restrained support, so that it has the characteristics of convenient connection and simple construction, and ensures that it can reliably transmit the axial force of the buckling restrained support under earthquake conditions to ensure the normal operation of the buckling restrained support, has become a technical problem that needs to be solved urgently. Utility Model Content

[0003] The utility model aims to provide a buckling restrained brace connection node of a steel tube concrete composite column steel beam frame to solve the technical problems described in the background technology.

[0004] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0005] A flexural restrained support connection node of a steel tube concrete composite column and a steel beam frame, comprising a node vertical plate, a horizontal edge sealing rib plate and a vertical edge sealing rib plate, wherein the node vertical plate is vertically arranged at the connection node of the steel tube concrete composite column and the steel frame beam, and its end face on one side close to the steel tube concrete composite column penetrates the outer concrete of the steel tube concrete composite column and is welded and fixed to a core steel tube, and its end face on one side close to the steel frame beam abuts against the steel frame beam and is welded and fixed to the steel frame beam, the horizontal edge sealing rib plate is vertically welded to the end face of the node vertical plate on one side away from the steel frame beam, and its inner side plate body is sleeved on the core steel tube and is welded and fixed to the core steel tube, and the vertical edge sealing rib plate is vertically welded to the end face of the node vertical plate on one side away from the steel tube concrete composite column, and the vertical edge sealing rib plate is welded and fixed to the steel frame beam.

[0006] Preferably, the horizontal edge-sealing rib plate includes a circular hoop plate and a rectangular edge-sealing neck plate, the hoop plate is integrally connected with the edge-sealing neck plate, a circular hole matching the outer diameter of the core steel pipe is opened in the middle of the hoop plate, the core steel pipe passes through the circular hole in the middle of the hoop plate and is welded and fixed to the inner edge of the hoop plate, and the outer edge of the hoop plate is located on the inner side of the longitudinal reinforcement of the composite column of the steel tube concrete composite column, the edge-sealing neck plate is correspondingly arranged on one side of the hoop plate close to the node vertical plate, and the connecting position between the hoop plate and the edge-sealing neck plate is arranged in the form of an arc chamfer.

[0007] Preferably, the longitudinal reinforcement of the composite column of the steel tube concrete composite column is connected to the horizontal edge sealing ribs by penetration, welding or sleeve connection.

[0008] Preferably, the composite column stirrups of the steel tube concrete composite column are connected to the node vertical plate by penetration, welding or sleeve connection.

[0009] Preferably, stiffening ribs are provided in the belly of the steel frame beam at positions corresponding to the vertical edge sealing ribs.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model realizes the reliable connection between the buckling restrained support and the steel tube concrete composite column by arranging node vertical plates, horizontal edge sealing ribs and vertical edge sealing ribs, forming an energy dissipation and shock absorption structure that can reliably transmit horizontal forces, especially seismic forces, and can reliably transmit the axial force of the buckling restrained support under earthquake conditions to ensure the normal operation of the buckling restrained support, thereby improving the seismic performance of the traditional composite column structure. Moreover, the utility model has a simple structure, reliable force transmission, simple construction, and strong applicability. It can be widely used in single-story industrial plants and multi-story industrial plants with composite columns, and can also be used in high-rise civil buildings with composite columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and / or other aspects and advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0012] Figure 1 This is a schematic diagram of the vertical section structure of a node of the utility model;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of a node of the present utility model.

[0014] Figure numerals: 1. Buckling restrained support; 2. Steel tube concrete composite column; 201. Core steel tube; 202. Concrete inside the tube; 203. Concrete outside the tube; 204. Composite column longitudinal reinforcement; 205. Composite column stirrups; 3. Steel frame beam; 4. Node vertical plate; 5. Horizontal edge sealing rib; 501. Hoop plate; 502. Edge sealing neck plate; 6. Vertical edge sealing rib; 7. Stiffening rib. DETAILED DESCRIPTION

[0015] In the following, an embodiment of a buckling restrained brace connection node of a steel tube concrete composite column steel beam frame of the utility model will be described with reference to the accompanying drawings. The embodiments recorded herein are specific embodiments of the utility model, which are used to illustrate the concept of the utility model, are explanatory and exemplary, and should not be interpreted as limiting the implementation mode of the utility model and the scope of the utility model. In addition to the embodiments recorded herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, including technical solutions that adopt any obvious replacements and modifications to the embodiments recorded herein.

[0016] In the description of the present invention, it should be noted that the terms "front", "rear", "left", "right", "top", "bottom", "up", "down", "inside", "outside", "horizontal", "longitudinal", "vertical", "oblique" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0017] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0018] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The embodiments are only used to explain the present invention and are not intended to limit the scope of the present invention. Figure 1-2 , the preferred embodiments of the utility model are further described in detail:

[0019] like Figure 1-2As shown, the utility model preferably adopts a steel tube concrete composite column steel beam frame buckling restraint support connection node, including a node vertical plate 4, a horizontal edge sealing rib plate 5 and a vertical edge sealing rib plate 6. The node vertical plate 4 is vertically arranged at the connection node of the steel tube concrete composite column 2 and the steel frame beam 3. The end surface of the node vertical plate 4 close to the steel tube concrete composite column 2 passes through the outer tube concrete 203 of the steel tube concrete composite column 2 and is welded and fixed with the core steel tube 201. The end surface of the node vertical plate 4 close to the steel frame beam 3 is against the steel frame The horizontal edge sealing ribs 5 are vertically welded on the end face of the node vertical plate 4 away from the steel frame beam 3, and the inner plate body thereof is sleeved on the core steel pipe 201 and welded to the core steel pipe 201, and the vertical edge sealing ribs 6 are vertically welded on the end face of the node vertical plate 4 away from the steel tube concrete composite column 2, and the vertical edge sealing ribs 6 are welded to the steel frame beam 3, and the horizontal edge sealing ribs 5 and the vertical edge sealing ribs 6 are used to ensure the out-of-plane stability of the node vertical plate 4;

[0020] Among them, the horizontal edge sealing rib plate 5 can be selected into a suitable shape according to the needs. From the perspective of saving materials, saving space and ensuring uniform force, the horizontal edge sealing rib plate 5 should include a circular ring hoop plate 501 and a rectangular edge sealing neck plate 502. The ring hoop plate 501 is integrally connected with the edge sealing neck plate 502. A circular hole matching the outer diameter of the core steel pipe 201 is opened in the middle of the ring hoop plate 501. The core steel pipe 201 passes through the circular hole in the middle of the ring hoop plate 501 and is welded and fixed to the inner edge of the ring hoop plate 501. The outer edge of the ring hoop plate 501 is located at the longitudinal direction of the composite column of the steel tube concrete composite column 2. On the inner side of the reinforcement 204, a certain gap is left between the hoop plate 501 and the composite column longitudinal reinforcement 204, which can ensure that the concrete has enough flow gap when pouring the outer tube concrete 203 to ensure its smooth flow, and on the other hand, it can ensure that the outer tube concrete 203 after pouring can be poured densely and fully vibrated to ensure the pouring quality of the concrete in this part. The edge sealing neck plate 502 is correspondingly arranged on the side of the hoop plate 501 close to the node vertical plate 4, and the position where the hoop plate 501 and the edge sealing neck plate 502 meet is set in the form of an arc chamfer to avoid stress concentration at this position;

[0021] When some of the composite column longitudinal reinforcements 204 and the horizontal edge sealing ribs 5 are in positional interference, the composite column longitudinal reinforcements 204 of the steel tube concrete composite column 2 can be connected to the horizontal edge sealing ribs 5 by penetration, welding or sleeve connection;

[0022] Of course, the composite column stirrups 205 of the steel tube concrete composite column 2 can also be connected to the node vertical plate 4 in the form of penetration, welding or sleeve connection. However, from the perspective of facilitating on-site construction, it is advisable to reserve through holes on the node vertical plate 4 to try to set the composite column stirrups 205 in the form of penetration. At this time, the strength reduction caused by the opening of the node vertical plate 4 needs to be taken into account in the early design stage to offset this effect through reasonable material selection;

[0023] The buckling restraint support 1 and the node vertical plate 4 can be connected flexibly by welding, high-strength bolt connection or pin connection according to the specific situation;

[0024] In order to ensure the structural strength of the steel frame beam 3, a stiffening rib 7 is provided in the belly of the steel frame beam 3 at a position corresponding to the vertical edge sealing rib 6;

[0025] Among them, each welding node should use the groove welding method as much as possible to achieve equal strength welding and ensure the stability of the entire connection node.

[0026] The corresponding connection node of the utility model should be reliably connected to the main structure and the buckling restraint support 1, so that it can effectively transmit the axial force of the buckling restraint support 1 under the action of an earthquake, that is, the connection node should have sufficient rigidity to maintain elasticity when the buckling restraint support 1 enters the yield stage, and the connection node should also have sufficient ultimate bearing capacity so that it will not be damaged when the axial force of the buckling restraint support 1 is maximum. Moreover, the connection node should also have sufficient stability so that no in-plane or out-of-plane buckling damage will occur under the action of an earthquake.

[0027] The above description is only a preferred embodiment of the present invention and is 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 in the protection scope of the present invention.

Claims

1. A buckling restrained brace connection node of a steel tube concrete composite column steel beam frame, characterized in that: The invention comprises a node vertical plate (4), a horizontal edge sealing rib plate (5) and a vertical edge sealing rib plate (6); the node vertical plate (4) is vertically arranged at the connection node between the steel tube concrete composite column (2) and the steel frame beam (3); the end surface of the node vertical plate (4) on one side close to the steel tube concrete composite column (2) penetrates the outer concrete (203) of the steel tube concrete composite column (2) and is welded and fixed to the core steel tube (201); the end surface of the node vertical plate (4) on one side close to the steel frame beam (3) abuts against the steel frame beam (3) The vertical plate (201) is welded to the steel frame beam (3), the horizontal edge sealing rib (5) is vertically welded to the end face of the node vertical plate (4) away from the steel frame beam (3), the inner plate body is sleeved on the core steel pipe (201) and is welded to the core steel pipe (201), the vertical edge sealing rib (6) is vertically welded to the end face of the node vertical plate (4) away from the steel tube concrete composite column (2), and the vertical edge sealing rib (6) is welded to the steel frame beam (3).

2. The buckling restrained brace connection node of a steel tube concrete composite column steel beam frame according to claim 1, characterized in that: The horizontal edge-sealing rib plate (5) comprises a circular ring hoop plate (501) and a rectangular edge-sealing neck plate (502), wherein the ring hoop plate (501) is integrally connected with the edge-sealing neck plate (502), a circular hole matching the outer diameter of the core steel pipe (201) is opened in the middle of the ring hoop plate (501), the core steel pipe (201) passes through the circular hole in the middle of the ring hoop plate (501) and is welded and fixed to the inner edge of the ring hoop plate (501), and the outer edge of the ring hoop plate (501) is located on the inner side of the composite column longitudinal reinforcement (204) of the steel tube concrete composite column (2), and the edge-sealing neck plate (502) is correspondingly arranged on one side of the ring hoop plate (501) close to the node vertical plate (4), and the connecting position of the ring hoop plate (501) and the edge-sealing neck plate (502) is arranged in the form of an arc chamfer.

3. The buckling restrained brace connection node of a steel tube concrete composite column steel beam frame according to claim 1, characterized in that: The composite column longitudinal reinforcement (204) of the steel tube concrete composite column (2) is connected to the horizontal edge sealing rib plate (5) in a penetration, welding or sleeve connection manner.

4. The buckling restrained brace connection node of a steel tube concrete composite column steel beam frame according to claim 1, characterized in that: The composite column stirrups (205) of the composite steel tube concrete column (2) are connected to the node vertical plate (4) in a penetration, welding or sleeve connection manner.

5. The buckling restrained brace connection node of a steel tube concrete composite column steel beam frame according to claim 1, characterized in that: A stiffening rib plate (7) is arranged in the belly of the steel frame beam (3) at a position corresponding to the vertical edge sealing rib plate (6).

Images