CN114737671A - Connecting structure and method for steel pipe concrete column and steel node and transition connecting member - Google Patents
Connecting structure and method for steel pipe concrete column and steel node and transition connecting member Download PDFInfo
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- CN114737671A CN114737671A CN202210378406.8A CN202210378406A CN114737671A CN 114737671 A CN114737671 A CN 114737671A CN 202210378406 A CN202210378406 A CN 202210378406A CN 114737671 A CN114737671 A CN 114737671A
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- steel
- node
- support plate
- concrete column
- steel pipe
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
- E04B1/1906—Connecting nodes specially adapted therefor with central spherical, semispherical or polyhedral connecting element
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1924—Struts specially adapted therefor
- E04B2001/1948—Concrete struts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1957—Details of connections between nodes and struts
Abstract
The application discloses connection structure, method and transitional coupling component of steel core concrete column and steel node, transitional coupling component (30) are including backup pad (31) and transition structure (32), the axial setting of steel pipe (11) of backup pad perpendicular to steel core concrete column (10) and connect steel pipe and steel node (20), the axial extension of transition structure along the steel pipe connects steel pipe and backup pad, the transition structure sets up the cross section that can span the steel pipe, the backup pad is provided with first watering hole (311) that allows the shaping steel core concrete column of watering. The backup pad can evenly pass power to the steel pipe along the axial through the transition structure that crosses the cross section of steel pipe of steel core concrete column to can make transition connection component and steel core concrete column shaping integrative through first watering hole, make the steel node can wait to be connected to steel core concrete column by force on the one hand, on the other hand can conveniently operate and ensure that it is aesthetic in appearance.
Description
Technical Field
The application relates to the field of buildings, in particular to a connecting structure and a connecting method of a concrete filled steel tubular column and a steel node and a transition connecting member.
Background
The main function of the support node of the large-span space structure is to limit the displacement and rotation of the structure at the boundary position and ensure the integral stability of the structure. The common support forms in the upper roof large-span steel structure mainly comprise a flat plate or arc-shaped tension support, a natural rubber support, an anti-seismic spherical steel support, a plate spring steel support, a truss support, a rigid connection support, a pin shaft and the like, and the node is suitable for a node which is not complex, has the advantages of simple stress, small span, fewer connecting rods and the like. The steel node can be applied to nodes with complex shapes, connected multiple rods and complex stress, can avoid the generation of large initial stress caused by repeated welding of the nodes, has the characteristics of definite stress, direct force transmission, high bearing capacity, suitability for thick plates, complex configuration and the like, and can reduce the influence of the welding stress of the node plates and the node balls on the internal force of the structure, so that the steel node is more applied to urban landmark buildings such as a plurality of stadiums and exhibition halls.
In the prior art, in order to connect steel nodes and a concrete filled steel tubular column, the steel nodes are generally directly welded to a steel tube, and then the concrete filled steel tubular column is cast. This, on the one hand, does not ensure that the forces at the steel joints are evenly transferred to the concrete filled steel tubular column because the welding is only done along the circumference of the steel tubular, and on the other hand, may result in an unaesthetic appearance of the welded part being exposed.
Therefore, how to improve the connection between the steel node and the steel pipe concrete column becomes a technical problem to be solved in the field.
Disclosure of Invention
In view of the above, the present application provides a transition connection member for a steel pipe concrete column and a steel node, so as to improve the connection between the steel node and the steel pipe concrete column.
According to the application, a steel core concrete column and steel node's transitional coupling component is proposed, wherein, transitional coupling component includes backup pad and transition structure, the backup pad perpendicular to the axial setting of the steel pipe of steel core concrete column is connected the steel pipe with the steel node, transition structure follows the axial extension of steel pipe is connected the steel pipe with the backup pad, transition structure sets up to can span the cross section of steel pipe, the backup pad is provided with the first hole of watering that allows the shaping steel core concrete column of watering.
Optionally, the transition structure comprises a first cross rib, the first cross rib connecting the steel pipe at the branch ends thereof.
Optionally, the steel node's cross-sectional profile is less than the steel pipe's cross-sectional profile, the steel node includes the first node body that connects each other and connects the first node body with the support of backup pad, the transition connecting element includes being on a parallel with the end plate that the backup pad set up, the end plate is used for connecting the steel pipe, the transition structure sets up the backup pad with between the end plate, the end plate is provided with the second hole of watering that allows the shaping steel core concrete column of watering.
Optionally, the transition structure comprises a sleeve sleeved in the steel pipe, and the sleeve is provided with a third pouring hole allowing a concrete filled steel tubular column to be poured and formed.
Optionally, the steel node has a cross-sectional profile comparable to that of the steel pipe, the steel node comprising a second node body having an outer periphery connected to an edge of the support plate, the transitional coupling member comprising a connector connecting the second node body and the support plate across the cross-section of the support plate.
Optionally, the connecting piece is vertically centered with the transition structure; and/or the connecting piece comprises a second cross rib plate, and the second cross rib plate is connected with the second node body at the branch tail end of the second cross rib plate.
Optionally, the transitional coupling member comprises a rib plate for connecting the inner wall of the steel pipe and the support plate.
According to another aspect of the present application, a connection structure of a steel core concrete column and a steel node is provided, wherein the connection structure comprises the steel core concrete column, the steel node and the transition connection member of the present application.
The application also provides a method for connecting the steel pipe concrete column with the steel node, wherein the method comprises the following steps: s1, connecting a concrete-filled steel tube column by using the transitional connecting member, so that the support plate is connected to the steel tube in an axial direction perpendicular to the steel tube of the concrete-filled steel tube column, and the transitional structure is connected with the steel tube and the support plate; and S2, pouring and forming the steel pipe concrete column and connecting the supporting plate with the steel node.
Optionally, the transition structure includes a first cross rib, in step S1, a slot adapted to the first cross rib is formed in the steel pipe, and the first cross rib is inserted into the slot and then connected to the steel pipe.
According to the technical scheme of this application, the backup pad can evenly pass power to the steel pipe along the axial through the transition structure of the cross section of the steel pipe that spanes the steel core concrete column to can make transition connection component and steel core concrete column shaping integrative through first watering hole, make the steel node be connected to steel core concrete column equally strong on the one hand, on the other hand can conveniently operate and ensure that it is aesthetic in appearance.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of a connection structure of a concrete filled steel tubular column with steel nodes according to an embodiment of the present application;
FIG. 2 is a view taken along the plane A-A in FIG. 1;
FIG. 3 is a view taken along the plane B-B in FIG. 1;
FIG. 4 is a schematic view of a connection structure of a concrete filled steel tubular column with a steel node according to another embodiment of the present application;
fig. 5 is a view taken along the plane C-C in fig. 4.
Detailed Description
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
According to an aspect of the present application, there is provided a transitional coupling member for a concrete filled steel tubular column and a steel node, wherein the transitional coupling member 30 comprises a support plate 31 and a transitional structure 32, the support plate 31 is disposed perpendicular to an axial direction of a steel tube 11 of the concrete filled steel tubular column 10 and couples the steel tube 11 and the steel node 20, the transitional structure 32 extends along the axial direction of the steel tube 11 and couples the steel tube 11 and the support plate, the transitional structure 32 is disposed to span a cross section of the steel tube 11, and the support plate 31 is provided with a first pouring hole 311 allowing a molded concrete filled steel tubular column to be poured.
According to another aspect of the present application, there is provided a connection structure of a steel core concrete column and a steel node, wherein the connection structure comprises the steel core concrete column 10, the steel node 20 and the transition connection member 30 of the present application.
The support plate 31 can uniformly transmit force to the steel tube 11 in the axial direction through the transition structure 32 crossing the cross section of the steel tube 11 of the steel tube concrete column 10, and can integrate the transition connection member 30 with the steel tube concrete column 10 through the first pouring hole 311, so that the steel node 20 can be equally strongly connected to the steel tube concrete column 10 on one hand, and the operation is convenient and the appearance is beautiful on the other hand.
Wherein, the shape of the support plate 31 can be matched with the shapes of the steel pipe 11 and the steel node 20. For example, when the steel pipe 11 and the steel joint 20 are square, the support plate 31 is also square; when the steel pipe 11 is a round steel pipe and the steel nodes 20 are spherical or hemispherical, the support plate 31 is circular to match the cross-section of the steel pipe 11. During construction, one side of the support plate 31 is connected with the end of the steel pipe 11, and the other side is connected with the steel node 20.
The transition structure 32 may take any suitable form to transmit load across the cross-section of the steel duct 11 and thus across the cross-section of the steel duct 11, so that the force is transmitted uniformly throughout the steel duct 11 in the axial direction, achieving an equally strong connection of the steel duct concrete column 10 to the steel node 20.
In order to simplify the structure and to make the transition structure 32 as multi-point as possible with the steel duct 11 so that the load can be transmitted as evenly as possible to various positions of the cross section of the steel duct 11, it is preferable that the transition structure 32 includes a first cross rib 321, and the first cross rib 321 connects the steel duct 11 at the branch ends thereof. The first cross ribs 321 may be of a corresponding form according to the shape of the steel duct 11. Preferably, when the steel pipe 11 is a square steel pipe, the two ribs of the first cross rib 321 may be respectively disposed perpendicular to the two pairs of square sides of the steel pipe 11 and intersect the axis of the steel pipe 11, or the two ribs of the first cross rib 321 may be respectively disposed along two diagonal lines of the cross section of the steel pipe 11; when the steel pipe 11 is a round steel pipe, as shown in fig. 2 and 3, the two ribs of the first cross rib 321 extend along two perpendicular diameters of the steel pipe 11, respectively. It can be understood that when the steel pipe 11 is a round steel pipe, it can be welded by rolling a steel plate, and for convenience of welding, a slot can be provided on the inner side of the steel pipe 11 as described below to connect the first cross rib 321 on the construction site; when the steel pipe 11 is a square steel pipe, it may be formed by welding four steel plates, which is more convenient to weld the first cross rib 321 to the square steel pipe, so that the first cross rib 321 and the square steel pipe may be welded as an integral piece before reaching the construction site.
In order to facilitate the connection between the steel pipe 11 and the first cross rib 321, the steel pipe 11 is provided with an insertion groove adapted to the first cross rib 321, so that the first cross rib 321 can be inserted into the insertion groove to connect the first cross rib 321 and the steel pipe 11.
The transitional coupling member 30 may have a corresponding configuration according to the matching of the sizes of the cross-sectional profiles of the steel node 20 and the steel pipe 11.
According to an embodiment of the present application, under the condition that the cross-sectional profile of the steel node 20 is less than the cross-sectional profile of the steel pipe 11, the transition connection member 30 includes an end plate 33 parallel to the support plate 31, the end plate 33 is used for connecting the steel pipe 11, the transition structure 32 is disposed between the support plate 31 and the end plate 33, the end plate 33 is provided with a second pouring hole 331 allowing the cast steel pipe concrete column. By providing the end plates 33, the uniformity of the axial force transfer can be further improved and the integrity of the connection between the transition structure 32 and the steel pipe 11 as well as the bending and tensile resistance can be enhanced. When pouring molding is performed, the pouring material fills the corresponding space through the second pouring hole 331. Specifically, when pouring is performed from top to bottom, pouring materials enter the steel pipe 11 from the first pouring hole 311 through the second pouring hole 331; when pouring is performed from bottom to top, the pouring material 11 enters between the end plate 33 and the support plate 31 from the steel pipe 11 through the second pouring hole 331. To facilitate the uniform distribution of the pouring material, the number and the position of the second pouring holes 331 may be appropriately set, for example, in the embodiment shown in fig. 3, the second pouring holes 331 may include a large hole located at the center of the end plate 33 and a plurality of small holes uniformly arranged around the large hole.
Preferably, the steel node 20 comprises a first node body 21 and a support 22 connecting the first node body 21 and the support plate 31. In such an embodiment, the shape of the end surface of the abutment 22 connecting the first node body 21 may match the shape of the outer peripheral profile of the first node body 21. Thus, the load of the first node body 21 can be evenly applied to the holder 22, and then the holder 22 evenly applies the load to the concrete filled steel tubular column 10 through the transitional coupling member 30. Wherein, support 22 and first node body 21 cooperation can realize that this node fully rotates and slides to accord with the requirement of theoretical design. Of course, the abutment 22 may not be provided and the first node body 21 may be directly connected to the support plate 31, in which case, in order to avoid uneven compression caused by the load concentration at the peripheral connection of the first node body 21 and the support plate 31, the load of the first node body 21 may be evenly distributed to the support plate 31 by providing, for example, a connecting member 34 described below. A connector 34 connects the first node body 21 and the support plate 31 across a cross-section of the support plate 31.
In addition, since the cross-sectional profile of the steel joint 20 is smaller than that of the steel tube 11, in order to avoid the stress concentration in the area of the steel joint 20, as shown in fig. 1, the transition structure 32 includes a sleeve 322 sleeved inside the steel tube 11, and the sleeve 322 is provided with a third pouring hole 3221 allowing the concrete filled steel tube column to be poured. Wherein the sleeve 322 may have the same shape as the steel pipe 11. For example, the steel pipe 11 is a circular steel pipe, and the sleeve 322 is also a circular steel pipe, so as to improve the effect of uniformly transmitting the load. Of course, the shape of the steel pipe 11 and the sleeve 322 may be different, and for example, the steel pipe 11 is a square steel pipe and the sleeve 322 is a round steel pipe. Preferably, the steel pipe 11 and the sleeve 322 may be coaxially disposed in order to more uniformly transmit the load through the sleeve 322.
Wherein the transition structure 32 is disposed between the supporting plate 31 and the end plate 33, that is, the sleeve 322 and the two ends of the first cross rib 321 are connected to the supporting plate 31 and the end plate 33 respectively, and the length of the sleeve 322 and the first cross rib 321 is the same.
According to another embodiment of the present application, the steel node 20 has a sectional profile corresponding to that of the steel pipe 11, the steel node 20 includes a second node body 23, the outer circumference of the second node body 23 is connected to the edge of the support plate 31, and the transitional coupling member 30 includes a connection member 34 connecting the second node body 23 and the support plate 31 across the cross-section of the support plate 31. Since the cross-sectional profile of the steel node 20 corresponds to the cross-sectional profile of the steel pipe 11, that is, the cross-sectional profile of the steel node 20 corresponds to the profile of the support plate 31, the second node body 23 can be directly connected to the edge of the support plate 31 through the outer circumference without providing a stand. To avoid uneven compression due to the concentration of loads at the peripheral connection of second node body 23 and support plate 31, the loads on second node body 23 may be evenly distributed to support plate 31 by providing connectors 34.
Wherein the main function of the connecting piece 34 is to transmit pressure between the second joint body 23 and the support plate 31 to avoid uneven compression. For this reason, it is possible to press the connecting member 34 between the second node body 23 and the support plate 31 when connecting the peripheries of the second node body 23 and the support plate 31 after connecting the connecting member 34 to the second node body 23, so as to easily achieve load transmission of the connecting member 34 and the support plate 31.
To facilitate transferring loads along the same path to achieve an equally strong connection, the connection 34 is vertically centered with the transition structure 32. Preferably, the connection 34 and the transition structure 32 both extend along the axis of the steel duct 11.
In addition, connectors 34 may take a variety of suitable forms to span the cross-section of support plate 31, thereby transferring loads across the cross-section of support plate 31. In order to simplify the structure and to make the connecting member 34 have a multipoint connection with the second node body 23 and the support plate 31 as much as possible so that the load can be transmitted to the respective positions of the second node body 23 and the support plate 31 as uniformly as possible, the connecting member 34 includes a second cross rib which connects the second node body 23 at the branch ends thereof. Preferably, the ribs of the second cross rib intersect at the center of the support plate 31. For example, in the embodiment shown in fig. 4 and 5, the second node body 23 is hemispherical, and the second cross rib may include two segmental ribs perpendicular to each other, which intersect at the center of the support plate 31.
In addition, in order to ensure that the connection part of the support plate 31 and the steel pipe 11 is uniformly compressed, the transitional coupling member 30 includes a rib 35 for connecting the inner wall of the steel pipe 11 and the support plate 31. The ribs 35 may be radially provided from the inner wall of the steel pipe 11 around the center of the end face of the steel pipe 11 connected to the support plate 31, so as to extend from the steel pipe 11 to the support plate 31, thereby increasing the contact area for load transmission.
In the present application, the components (such as the supporting plate 31, the steel pipe 11, the transition structure 32, the node 20, and the rib plate 35) may be connected by a suitable method, preferably by welding. In this case, a uniform load transfer is achieved primarily via the transition structure 32, whose main components can be dimensioned according to the respective strength requirements. For example, when the connection method of the all-welded joint (all the parts are welded together), the same vertical butt weld may be used, and the length L of the first cross rib 321 (the extension length in the axial direction of the steel pipe 11) may be determined according to L/(4 × fy × t), where N is the tensile force/pressure to be borne, fy is the weld yield strength, and t is the rib thickness of the first cross rib 321.
According to another aspect of the present application, there is provided a method of connecting a concrete filled steel tubular column to a steel node, wherein the method comprises: s1, connecting a steel tube concrete column 10 by using a transition connecting member 30 of the application, enabling a support plate 31 to be perpendicular to the axial direction of a steel tube 11 of the steel tube concrete column 10 and connected to the steel tube 11, and enabling a transition structure 32 to connect the steel tube 11 and the support plate 31; and S2, pouring and forming the steel pipe concrete column 10 and connecting the support plate 31 with the steel node 20.
The support plate 31 can uniformly transmit force to the steel tube 11 in the axial direction through the transition structure 32 crossing the cross section of the steel tube 11 of the steel tube concrete column 10, and can integrate the transition connection member 30 with the steel tube concrete column 10 through the first pouring hole 311, so that the steel node 20 can be equally strongly connected to the steel tube concrete column 10 on one hand, and the operation is convenient and the appearance is beautiful on the other hand.
In this case, the connection between the support plate 31 and the steel pipe 11, the connection between the transition structure 32 and the steel pipe 11 and the support plate 31 in step S1, and the connection between the steel node 20 and the support plate 31 in step S2 may be welded.
It should be noted that, in step S2, the pouring and the connection between the supporting plate 31 and the steel node 20 are determined according to the pouring order. Specifically, when pouring is performed from top to bottom, pouring is performed first, so that pouring materials enter from the first pouring holes 311 to integrally connect the steel pipes 11 and the transition connecting members 30 through pouring, and then the support plates 31 and the steel nodes 20 are connected after the first pouring holes 311 are closed; when pouring from bottom to top, connect support plate 31 and steel node 20 earlier, then seal first watering hole 311, water at last for the pouring material gets into between transition structure 32 and support plate 31, the steel pipe 11 from steel pipe 11, thereby accomplishes the pouring of steel core concrete column and the pouring integrated into one piece of steel pipe 11 and transitional coupling component 30 in the lump.
In the case where the transitional structure 32 includes the first cross rib 321, in step S1, for convenience of construction, an insertion groove adapted to the first cross rib 321 is formed in the steel pipe 11, and the first cross rib 321 is inserted into the insertion groove to connect the first cross rib 321, the steel pipe 11 and the support plate 31. Wherein the first cross rib 321 may be connected to the steel duct 11 and the support plate 31 by welding, as described above.
Further, in the case where the bushing 322 needs to be provided, the bushing 322 may be previously attached to the first cross rib 321, so that the bushing 322 is positioned when the first cross rib 321 is inserted into the slot. Specifically, the sleeve 322 may be divided into four parts in the radial direction, and the parts are welded between adjacent ribs of the first cross ribs 321, respectively, to form a structure in which the first cross ribs 321 penetrate the sleeve 322.
In addition, in order to improve the construction efficiency, some parts of the intermediate connection member 30 may be connected in advance, so that the operation of connecting the steel pipes 11 and the steel joints 20 may be directly performed on site. For example, in the embodiment shown in fig. 1, the support plate 31, the first cross rib 321, the sleeve 322, and the end plate 33 may be welded in advance to form an integral piece, and then the integral piece may be transported to the site, and the relevant components may be directly connected to the steel pipe 11 and the steel joint 20 during construction. In the embodiment shown in fig. 4, the support plate 31 and the first cross rib 321 may be welded into an integral piece, and then the integral piece is transported to the site, and the connection between the relevant components and the steel pipe 11 and the steel joint 20 is directly performed during construction.
The present application is described below with reference to the accompanying drawings.
In the embodiment shown in fig. 1 to 3, the steel pipe 11 is a circular steel pipe, the steel node 20 includes a first node body 21 (cast steel hemispherical node) and a support 22, the spherical surface diameter of the first node body 21 is smaller than the diameter of the steel pipe 11 (i.e. non-equal diameter connection), the transitional connection member 30 includes a support plate 31, a first cross rib 321, a sleeve 322, and an end plate 33, the steel pipe 11 is preset with a slot matching with the first cross rib 321, and the diameter of the end plate 33 matches with the inner diameter of the steel pipe 11 for insertion. Among them, the support plate 31, the first cross rib 321, the sleeve 322, and the end plate 33 may be welded in advance as an integral piece. During construction, the integral piece is transported to the site, the first cross rib 321 is inserted into the slot, and then the support plate 31, the first cross rib 321, the sleeve 322 and the end plate 33 are welded to the steel pipe 11. If pouring is performed from top to bottom, pouring material enters the pouring space inside the steel pipe 11 from the first pouring hole 311, the second pouring hole 331 and the third pouring hole 3221, so that the transitional coupling member 30 is integrally formed with the concrete filled steel pipe column by pouring, and then the support plate 31 and the support 22 are connected after the first pouring hole 311 is closed. If pouring is performed from bottom to top, the support plate 31 and the support 22 are connected first, then the first pouring hole 311 is closed, and finally, pouring material enters the steel pipe 11 from the bottom of the steel pipe 11 through the second pouring hole 331 and the third pouring hole 3221 and fills a pouring space between the steel pipe 11 and the transitional connecting member 30, so that the steel pipe 11 is poured to form the concrete filled steel tubular column, and meanwhile, the transitional connecting member 30 is integrally formed with the concrete filled steel tubular column through pouring.
In the embodiment shown in fig. 4 and 5, the steel pipe 11 is a circular steel pipe, the steel node 20 includes a second node body 23 (cast steel hemisphere node), the spherical surface diameter of the second node body 23 is equivalent to the diameter of the steel pipe 11 (i.e., equal diameter connection), the transitional connection member 30 includes a support plate 31, a first cross rib 321, a connection member 34, and a rib 35, and the steel pipe 11 is preset with a slot matching with the first cross rib 321. Wherein the support plate 31 and the first cross rib 321 may be welded in advance as an integral piece. During construction, the whole piece is transported to the site, the rib 35 is welded to the end of the steel pipe 11, the first cross rib 321 is inserted into the slot, and then the support plate 31 and the first cross rib 321 are welded to the steel pipe 11 and the rib 35 correspondingly. If pouring is performed from top to bottom, pouring material enters the pouring space inside the steel tube 11 from the first pouring hole 311, so that the transitional coupling member 30 is integrally formed with the concrete-filled steel tube column by pouring, and then the support plate 31 and the second node body 23 are connected after the first pouring hole 311 is closed, so that the lower end of the connecting member 34 abuts against the support plate 31. If pouring is performed from bottom to top, the support plate 31 and the second node body 23 are connected first, so that the lower end of the connecting piece 34 abuts against the support plate 31, then the first pouring hole 311 is closed, and finally, pouring materials enter the steel tube 11 from the bottom of the steel tube 11 and fill a pouring space between the steel tube 11 and the transitional connecting member 30, so that the steel tube 11 is poured to form the concrete-filled steel tube column, and meanwhile, the transitional connecting member 30 is integrally formed with the concrete-filled steel tube column through pouring.
The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.
In addition, any combination of the various embodiments of the present application can be made, and the same should be considered as the disclosure of the present invention as long as the combination does not depart from the spirit of the present application.
Claims (10)
1. The transition connection member of the concrete filled steel tubular column and the steel node is characterized in that the transition connection member (30) comprises a support plate (31) and a transition structure (32), the support plate (31) is perpendicular to the axial direction of a steel tube (11) of the concrete filled steel tubular column (10) and is connected with the steel tube (11) and the steel node (20), the transition structure (32) extends along the axial direction of the steel tube (11) and is connected with the steel tube (11) and the support plate, the transition structure (32) is arranged to be capable of crossing the cross section of the steel tube (11), and the support plate (31) is provided with a first pouring hole (311) allowing the concrete filled steel tubular column to be poured and formed.
2. The steel core concrete column to steel node transitional coupling member of claim 1, characterized in that said transitional structure (32) comprises a first cross rib (321), said first cross rib (321) connecting said steel pipe (11) at its branching ends.
3. Transition connection element of a steel tube concrete column and steel node according to claim 1 or 2, characterized in that the cross sectional profile of the steel node (20) is smaller than the cross sectional profile of the steel tube (11), the transition connection element (30) comprises an end plate (33) arranged parallel to the support plate (31), the end plate (33) being used for connecting the steel tube (11), the transition structure (32) being arranged between the support plate (31) and the end plate (33), the end plate (33) being provided with a second pouring hole (331) allowing for pouring of a steel tube concrete column, preferably the steel node (20) comprises a first node body (21) and a seat (22) connecting the first node body (21) with the support plate (31).
4. The steel core concrete column and steel node transitional coupling member of claim 3, characterized in that the transitional structure (32) comprises a sleeve (322) sleeved inside the steel pipe (11), the sleeve (322) is provided with a third pouring hole (3221) allowing for pouring of a shaped steel core concrete column.
5. Transition connection element of a steel tube concrete column to a steel node according to claim 1 or 2, characterized in that the cross sectional profile of the steel node (20) corresponds to the cross sectional profile of the steel tube (11), the steel node (20) comprising a second node body (23), the outer circumference of the second node body (23) being connected to the edge of the support plate (31), the transition connection element (30) comprising a connection piece (34) connecting the second node body (23) and the support plate (31) across the cross section of the support plate (31).
6. The steel core concrete column and steel node transitional coupling element of claim 5, characterized in that the connector (34) is vertically centered with the transition structure (32); and/or the connecting piece (34) comprises a second cross rib, which connects the second node body (23) at the branch ends thereof.
7. The steel core concrete column to steel node transitional coupling member of claim 5, characterized in that said transitional coupling member (30) comprises ribs (35) for connecting the inner wall of said steel core (11) with said support plate (31).
8. A connection structure of a steel core concrete column and a steel node, characterized in that the connection structure comprises a steel core concrete column (10), a steel node (20) and a transitional coupling element (30) according to any one of claims 1-7.
9. A method for connecting a concrete filled steel tubular column with a steel node is characterized by comprising the following steps:
s1, connecting the steel tube concrete column (10) by using the transition connecting member (30) of any one of claims 1 to 7, enabling the support plate (31) to be perpendicular to the axial direction of a steel tube (11) of the steel tube concrete column (10) and connected to the steel tube (11), and enabling the transition structure (32) to connect the steel tube (11) and the support plate (31);
s2, the steel pipe concrete column (10) is poured and formed, and the supporting plate (31) and the steel node (20) are connected.
10. The method for connecting a steel tubular concrete column with a steel node according to claim 9, wherein said transition structure (32) comprises a first cross rib (321), and in step S1, a slot adapted to said first cross rib (321) is formed in said steel tubular (11), and said first cross rib (321) is inserted into said slot to connect said first cross rib (321) with said steel tubular (11).
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