CN114737671B - Connection structure and method for steel pipe concrete column and steel node and transitional connection member - Google Patents
Connection structure and method for steel pipe concrete column and steel node and transitional connection member Download PDFInfo
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- CN114737671B CN114737671B CN202210378406.8A CN202210378406A CN114737671B CN 114737671 B CN114737671 B CN 114737671B CN 202210378406 A CN202210378406 A CN 202210378406A CN 114737671 B CN114737671 B CN 114737671B
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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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The application discloses a connection structure, a connection method and a transition connection member of a steel pipe concrete column and a steel node, wherein the transition connection member (30) comprises a supporting plate (31) and a transition structure (32), the supporting plate is perpendicular to the axial direction of a steel pipe (11) of the steel pipe concrete column (10) and is used for connecting the steel pipe and the steel node (20), the transition structure extends along the axial direction of the steel pipe and is used for connecting the steel pipe and the supporting plate, the transition structure is arranged to be capable of crossing the cross section of the steel pipe, and the supporting plate is provided with a first pouring hole (311) for allowing the steel pipe concrete column to be poured and formed. The support plate can evenly pass force to the steel pipe along the axial through the transition structure of crossing the cross section of the steel pipe of steel pipe concrete column to can make transition connecting element and steel pipe concrete column shaping an organic whole through first watering hole, on the one hand make the steel node can be equi-strength connect to steel pipe concrete column, on the other hand can convenient operation and ensure that the appearance is pleasing to the eye.
Description
Technical Field
The application relates to the field of construction, in particular to a connection structure, a connection method and a transitional connection component of a concrete filled steel tubular column and a steel node.
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 support forms commonly used in the large-span steel structure of the upper roof mainly comprise flat plate or arc tension supports, natural rubber supports, anti-seismic spherical steel supports, plate spring steel supports, truss supports, rigid connection supports, pin shafts and the like, and the node is suitable for nodes which are simple in stress, small in span, few in connecting rod members and the like and are not complex. The steel node can be applied to the nodes with complex shapes, multiple rod pieces connected and complex stress, can avoid great initial stress generated by repeated welding at the nodes, has the characteristics of definite stress, direct force transmission, high bearing capacity, suitability for thick plates and complex configurations 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 has more application in urban landmark buildings such as stadiums, exhibition halls and the like.
In the prior art, in order to connect a steel node with a concrete filled steel tubular column, the steel node is usually welded directly to the steel tubular column, and then the concrete filled steel tubular column is molded by casting. This cannot ensure that the stress at the steel joint is uniformly transferred to the steel pipe concrete column because only welding along the periphery of the steel pipe is possible, and on the other hand, the welded portion may be exposed to be not beautiful.
Therefore, how to improve the connection of steel nodes and concrete filled steel tube columns is a technical problem that needs to be solved in the art.
Disclosure of Invention
In view of the above, the present application provides a transitional connection member for a concrete filled steel tubular column and a steel node, so as to improve the connection between the steel node and the concrete filled steel tubular column.
According to the present application, there is provided a transition connection member of a concrete filled steel tubular column and a steel node, wherein the transition connection member comprises a support plate disposed perpendicular to an axial direction of a steel tube of the concrete filled steel tubular column and connecting the steel tube and the steel node, and a transition structure extending in the axial direction of the steel tube and connecting the steel tube and the support plate, the transition structure being disposed so as to be capable of crossing a cross section of the steel tube, the support plate being provided with a first pouring hole allowing a concrete filled steel tubular column to be poured.
Optionally, the transition structure includes a first cross rib connected to the steel pipe at a branching end thereof.
Optionally, the steel node has a cross-sectional profile smaller than that of the steel pipe, the steel node comprises a first node body connected to each other and a support connecting the first node body and the support plate, the transition connection member comprises an end plate arranged parallel to the support plate, the end plate is used for connecting the steel pipe, the transition structure is arranged between the support plate and the end plate, and the end plate is provided with a second pouring hole allowing a concrete filled steel tubular column to be poured.
Optionally, the transition structure comprises a sleeve sleeved in the steel pipe, and the sleeve is provided with a third pouring hole for allowing the steel pipe concrete column to be poured and molded.
Optionally, the steel node has a cross-sectional profile comparable to the cross-sectional profile of the steel pipe, the steel node comprising a second node body, the outer periphery of the second node body being connected to the edge of the support plate, the transition connection member comprising a connection connecting the second node body and the support plate across the cross-section of the support plate.
Optionally, the connecting piece is vertically aligned 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 transition connecting member includes a rib for connecting an inner wall of the steel pipe with the support plate.
According to another aspect of the present application, there is provided a connection structure of a concrete filled steel tubular column and a steel node, wherein the connection structure comprises the concrete filled steel tubular column, the steel node and the transitional connection member of the present application.
The application also provides a connection method of the steel pipe concrete column and the steel node, wherein the connection method comprises the following steps: s1, connecting a steel pipe concrete column by using the transition connecting member, so that the supporting plate is connected with the steel pipe perpendicular to the axial direction of the steel pipe concrete column, and the transition structure is connected with the steel pipe and the supporting plate; s2, pouring and forming the concrete filled steel tube column and connecting the supporting plate and the steel nodes.
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 connected to the steel pipe after being inserted into the slot.
According to the technical scheme of the application, the supporting plate can uniformly transfer force to the steel pipe along the axial direction through the transition structure crossing the cross section of the steel pipe concrete column, and the transition connecting member and the steel pipe concrete column can be integrally formed through the first pouring hole, so that on one hand, the steel node can be connected to the steel pipe concrete column at equal strength, and on the other hand, the operation can be convenient and the appearance is ensured to be attractive.
Additional features and advantages of the application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic view showing a connection structure of a concrete filled steel tubular column and a steel node according to an embodiment of the present application;
FIG. 2 is a view taken along the A-A plane in FIG. 1;
FIG. 3 is a view taken along the plane B-B in FIG. 1;
FIG. 4 is a schematic view showing a connection structure of a concrete filled steel tubular column and a steel node according to another embodiment of the present application;
fig. 5 is a view taken along the C-C plane in fig. 4.
Detailed Description
The technical scheme of the present application will be described in detail below with reference to the accompanying drawings in combination with embodiments.
According to an aspect of the present application, there is provided a transition connection member of a concrete filled steel tube column and a steel node, wherein the transition connection member 30 comprises a support plate 31 and a transition structure 32, the support plate 31 being disposed perpendicular to an axial direction of a steel tube 11 of the concrete filled steel tube column 10 and connecting the steel tube 11 and the steel node 20, the transition structure 32 extending in the axial direction of the steel tube 11 and connecting the steel tube 11 and the support plate, the transition structure 32 being disposed so as to be capable of crossing a cross section of the steel tube 11, the support plate 31 being provided with a first pouring hole 311 allowing a concrete filled steel tube column to be poured.
According to another aspect of the present application, there is provided a connection structure of a concrete filled steel tubular column and a steel node, wherein the connection structure comprises a concrete filled steel tubular column 10, a steel node 20 and a transition connection member 30 of the present application.
The support plate 31 can uniformly transmit force to the steel pipe 11 in the axial direction through the transition structure 32 crossing the cross section of the steel pipe 11 of the steel pipe concrete column 10, and can make the transition connection member 30 and the steel pipe concrete column 10 integrally formed through the first pouring hole 311, so that the steel nodes 20 can be equally strongly connected to the steel pipe concrete column 10 on the one hand, and on the other hand, the operation can be facilitated and the appearance is ensured to be beautiful.
The shape of the support plate 31 may be matched with the shape of the steel pipe 11 and the steel nodes 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 plates 31 are circular in shape matching the cross section of the steel pipe 11. During construction, one side of the support plate 31 is connected to the end of the steel pipe 11, and the other side is connected to the steel joint 20.
The transition structure 32 may take various suitable forms to span the cross section of the steel pipe 11, thereby transferring load across the cross section of the steel pipe 11, so that the force is uniformly transferred along the axial direction of the steel pipe 11 as a whole, and the equal-strength connection of the steel pipe concrete column 10 and the steel node 20 is realized.
In order to simplify the structure and to make the transition structure 32 as multipoint-connected as possible to the steel pipe 11 so that the load can be transferred to various positions of the cross section of the steel pipe 11 as uniformly as possible, it is preferable that the transition structure 32 includes a first cross rib 321, and the first cross rib 321 connects the steel pipe 11 at a branching end thereof. The first cross rib 321 may be in a corresponding form according to the shape of the steel pipe 11. Preferably, when the steel pipe 11 is a square steel pipe, two ribs of the first cross rib 321 may be disposed perpendicular to two pairs of square sides of the steel pipe 11 and cross an axis of the steel pipe 11, respectively, or two ribs of the first cross rib 321 may be disposed along two diagonal lines of a cross section of the steel pipe 11, respectively; when the steel pipe 11 is a round steel pipe, as shown in fig. 2 and 3, two ribs of the first cross rib 321 extend along two perpendicular diameters of the steel pipe 11, respectively. It will be appreciated that when the steel pipe 11 is a round steel pipe, it may be welded by a steel plate in a coiled manner, and for convenience of welding, a slot may be provided inside the steel pipe 11 as described below to connect the first cross rib 321 at the construction site; when the steel pipe 11 is a square steel pipe, it may be formed by welding four steel plates, so that the first cross rib 321 is more conveniently welded to the square steel pipe, and thus the first cross rib 321 and the square steel pipe may be welded into a single 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 a slot adapted to the first cross rib 321, so that the first cross rib 321 and the steel pipe 11 can be connected after the first cross rib 321 is inserted into the slot.
Depending on the size of the cross-sectional profile of the steel node 20 and the steel pipe 11, the transition piece 30 may have a corresponding arrangement.
According to one embodiment of the application, in case the cross-sectional profile of the steel node 20 is smaller than the cross-sectional profile of the steel pipe 11, the transition connection member 30 comprises an end plate 33 arranged parallel to the support plate 31, the end plate 33 being adapted to connect the steel pipe 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 to pour the shaped steel pipe concrete column. By providing the end plates 33, the uniformity of the axial force transfer can be further improved and the connection integrity and bending and tensile strength of the transition structure 32 and the steel pipe 11 can be enhanced. In the casting molding, the casting material fills the corresponding space through the second casting hole 331. Specifically, when pouring from top to bottom, the pouring material enters the steel pipe 11 from the first pouring hole 311 through the second pouring hole 331; in the case of pouring from bottom to top, the pouring material 11 is introduced from the steel pipe 11 between the end plate 33 and the support plate 31 through the second pouring hole 331. The number and location of the second watering holes 331 may be appropriately set to facilitate uniform distribution of the watering material, for example, in the embodiment shown in fig. 3, the second watering holes 331 may include a large hole at the center of the end plate 33 and a plurality of small holes uniformly disposed around the large hole.
Preferably, the steel node 20 includes a first node body 21 and a support 22 connecting the first node body 21 and the support plate 31. In this embodiment, the end surface shape of the abutment 22 connecting the first node body 21 may match the outer peripheral contour shape of the first node body 21. Thus, the load of the first node body 21 can be uniformly loaded on the support 22, and the support 22 in turn uniformly loads the load on the concrete filled steel tubular column 10 through the transition connecting member 30. The support 22 is matched with the first node body 21, so that the node can be fully rotated and slid to meet the theoretical design requirement. Of course, the support 22 may be omitted, 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 concentration of the load at the peripheral connection of the first node body 21 and the support plate 31 due to the peripheral connection, the load of the first node body 21 may be uniformly distributed to the support plate 31 by providing a connecting member 34 as 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 node 20 is smaller than that of the steel pipe 11, in order to avoid stress concentration in the area of the steel node 20, as shown in fig. 1, the transition structure 32 includes a sleeve 322 sleeved in the steel pipe 11, and the sleeve 322 is provided with a third pouring hole 3221 for allowing the steel pipe concrete column to be poured and formed. The shape of the sleeve 322 may be the same as that of the steel pipe 11. For example, the steel pipe 11 is a round steel pipe, and the sleeve 322 is a round steel pipe, so as to enhance the effect of uniformly transmitting load. Of course, the shapes of the steel pipe 11 and the sleeve 322 may be different, 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 load through the sleeve 322.
Wherein, the transition structure 32 is disposed between the support plate 31 and the end plate 33, that is, the sleeve 322 and the two ends of the first cross rib 321 are respectively connected with the support plate 31 and the end plate 33, and the sleeve 322 and the first cross rib 321 have the same length.
According to another embodiment of the present application, the cross-sectional profile of the steel node 20 corresponds to the cross-sectional profile 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 transition connection member 30 includes a connection 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 is equivalent to that of the steel pipe 11, i.e., the cross-sectional profile of the steel node 20 is equivalent to that 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 support. In order to avoid uneven compression caused by concentration of load at the peripheral connection of the second node body 23 and the support plate 31 due to the peripheral connection, the load of the second node body 23 can be uniformly distributed to the support plate 31 by providing the connection member 34.
The main function of the connection 34 is, among other things, to transmit pressure between the second node body 23 and the support plate 31, in order to avoid uneven compression. For this reason, after the connection member 34 is connected to the second node body 23, the connection member 34 may be abutted between the second node body 23 and the support plate 31 when connecting the circumferences of the second node body 23 and the support plate 31, so that the load transmission between the connection member 34 and the support plate 31 is conveniently achieved.
To facilitate load transfer along the same path to achieve a uniform strength connection, the connector 34 is vertically aligned with the transition structure 32. Preferably, both the connection 34 and the transition structure 32 extend along the axis of the steel pipe 11.
In addition, the connector 34 may take a variety of suitable forms to span the cross section of the support plate 31 to transfer loads across the cross section of the support plate 31. In order to simplify the construction and to make the connection 34 as multipoint as possible with the second node body 23, the support plate 31 so that the load can be transferred as evenly as possible to the respective positions of the second node body 23, the support plate 31, the connection 34 comprises a second cross rib which connects the second node body 23 at its branching end. Preferably, the ribs of the second cross rib cross 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 circular-shaped ribs perpendicular to each other, which intersect at the center of the support plate 31.
In addition, in order to ensure uniform compression at the junction of the support plate 31 and the steel pipe 11, the transition connection member 30 includes ribs 35 for connecting the inner wall of the steel pipe 11 with the support plate 31. The rib 35 may be provided in plurality radially from the inner wall of the steel pipe 11 around the center of the end surface of the steel pipe 11 connected to the support plate 31, thereby being connected to the support plate 31 as an extension of the steel pipe 11 and increasing the contact area for load transmission.
In the present application, the components (such as the support plate 31, the steel pipe 11, the transition structure 32, the nodes 20, and the rib plates 35) may be connected by a suitable means, preferably by welding. Wherein a uniform transfer of load is achieved mainly by the transition structure 32, the main components of which can be designed with parameters according to the respective strength requirements. For example, when a joining method of all welded joints (welded joint of the components) is adopted, the same vertical butt weld may be adopted, 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 based on l=n/(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 for connecting a concrete filled steel tubular column to a steel node, wherein the method comprises: s1, connecting a steel pipe concrete column 10 by using a transition connecting member 30 of the application, so that a supporting plate 31 is connected to the steel pipe 11 perpendicular to the axial direction of a steel pipe 11 of the steel pipe concrete column 10, and a transition structure 32 is connected with the steel pipe 11 and the supporting plate 31; s2, pouring and forming the concrete filled steel tube column 10 and connecting the supporting plate 31 and the steel nodes 20.
The support plate 31 can uniformly transmit force to the steel pipe 11 in the axial direction through the transition structure 32 crossing the cross section of the steel pipe 11 of the steel pipe concrete column 10, and can make the transition connection member 30 and the steel pipe concrete column 10 integrally formed through the first pouring hole 311, so that the steel nodes 20 can be equally strongly connected to the steel pipe concrete column 10 on the one hand, and on the other hand, the operation can be facilitated and the appearance is ensured to be beautiful.
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.
In step S2, the casting is performed and the connection support plate 31 and the steel node 20 are sequentially connected according to the casting method. Specifically, when pouring from top to bottom, pouring is performed first, so that the pouring material enters from the first pouring hole 311 to connect the steel pipe 11 and the transition connecting member 30 by pouring integrally, and then the support plate 31 and the steel node 20 are connected after the first pouring hole 311 is closed; when the steel pipe concrete column is poured from bottom to top, the supporting plate 31 and the steel nodes 20 are connected, the first pouring holes 311 are closed, and finally pouring is performed, so that pouring materials enter between the transition structure 32 and the supporting plate 31 and between the steel pipe 11 and the steel pipe 11 from the steel pipe 11, and the pouring of the steel pipe concrete column and the pouring of the steel pipe 11 and the transition connecting member 30 are integrally formed.
In the case that the transition structure 32 includes the first cross rib 321, in order to facilitate construction, in step S1, a slot adapted to the first cross rib 321 is formed in the steel pipe 11, and the first cross rib 321 is inserted into the slot to connect the first cross rib 321 with the steel pipe 11 and the support plate 31. Wherein, as described above, the first cross rib 321 may be connected to the steel pipe 11 and the support plate 31 by welding.
In addition, in the case where it is necessary to provide the sleeve 322, the sleeve 322 may be previously attached to the first cross rib 321 so that the sleeve 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 each part may be welded between adjacent ribs of the first cross rib 321, respectively, to form a structure in which the first cross rib 321 penetrates the sleeve 322.
In addition, in order to improve the construction efficiency, part of the components of the transitional coupling member 30 may be connected in advance, so that the operation of coupling the steel pipe 11 and the steel joint 20 can 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 into a single piece, and the single 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 the construction. For the embodiment shown in fig. 4, the support plate 31 and the first cross rib 321 may be welded into a single piece in advance, and then the single piece may be transported to the site, and the connection between the relevant components and the steel pipe 11 and the steel node 20 may be directly performed during the construction.
The present application is described below with reference to the drawings.
In the embodiment shown in fig. 1 to 3, the steel pipe 11 is a round steel pipe, the steel node 20 includes a first node body 21 (cast steel hemispherical node) and a support 22, and the spherical diameter of the first node body 21 is smaller than the diameter of the steel pipe 11 (i.e., non-equal diameter connection), the transition 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 pre-provided with a socket matching the first cross rib 321, and the diameter of the end plate 33 matches the inner diameter of the steel pipe 11 for insertion. Wherein the support plate 31, the first cross rib 321, the sleeve 322, and the end plate 33 may be welded in advance as a single piece. In the construction, the whole is carried 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, respectively. If the pouring is performed from the top to the bottom, the pouring material is introduced into 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 transition connection member 30 is integrally formed with the steel pipe concrete column by pouring, and then the support plate 31 and the support 22 are connected after the first pouring hole 311 is closed. If the steel pipe 11 is poured from bottom to top, the supporting plate 31 and the support 22 are connected, 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 a steel pipe concrete column, and meanwhile, the transitional connecting member 30 is integrally formed with the steel pipe concrete column through pouring.
In the embodiment shown in fig. 4 and 5, the steel pipe 11 is a round steel pipe, the steel node 20 includes a second node body 23 (cast steel hemispherical node), and the spherical diameter of the second node body 23 is equivalent to the diameter of the steel pipe 11 (i.e., equal diameter connection), the transitional coupling member 30 includes a support plate 31, a first cross rib 321, a connector 34 and a rib 35, and the steel pipe 11 is pre-provided with a slot matching the first cross rib 321. Wherein the support plate 31 and the first cross rib 321 may be welded in advance as a single piece. In construction, the whole is transported to the site, rib 35 is welded to the end of steel pipe 11, first cross rib 321 is inserted into the slot, and then support plate 31 and first cross rib 321 are welded to steel pipe 11 and rib 35. If the pouring is performed from the top down, the pouring material is introduced into the pouring space inside the steel pipe 11 from the first pouring hole 311 so that the transition connecting member 30 is integrally formed with the steel pipe concrete column by the pouring, and then the supporting 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 piece 34 abuts against the supporting plate 31. If pouring from bottom to top is adopted, the support plate 31 and the second node body 23 are connected first, so that the lower end of the connecting piece 34 is tightly pressed against the support plate 31, then the first pouring hole 311 is closed, finally pouring material is introduced into the steel pipe 11 from the bottom of the steel pipe 11 and fills the pouring space between the steel pipe 11 and the transitional connecting member 30, so that the steel pipe 11 is poured to form a steel pipe concrete column, and meanwhile, the transitional connecting member 30 is integrally formed with the steel pipe concrete 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 scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application.
In addition, the specific 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 further.
Moreover, any combination of the various embodiments of the application can be made without departing from the spirit of the application, which should also be considered as disclosed herein.
Claims (10)
1. The utility model provides a transitional coupling member of steel core concrete column and steel node, its characterized in that, transitional coupling member (30) include backup pad (31) and transition structure (32), backup pad (31) perpendicular to the axial setting of steel core (11) of steel core concrete column (10) and connect steel core (11) and steel node (20), transition structure (32) are followed the axial extension of steel core (11) and are connected steel core (11) with the backup pad, transition structure (32) set up to can span the cross section of steel core (11), backup pad (31) are provided with first watering hole (311) that allow cast steel core concrete column, transition structure (32) include first cross rib (321), first cross rib (321) are at its branch end connection steel core (11).
2. A steel tube concrete column and steel node transitional connection member according to claim 1, characterized in that the steel node (20) has a smaller cross-sectional profile than the steel tube (11), the transitional connection member (30) comprising an end plate (33) arranged parallel to the support plate (31), the end plate (33) being used for connecting the steel tube (11), the transitional 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 to pour the shaped steel tube concrete column.
3. A transitional coupling member of a concrete filled steel tubular column and a steel node according to claim 2, characterized in that the steel node (20) comprises a first node body (21) and a support (22) connecting the first node body (21) with the support plate (31).
4. A transitional coupling member for a concrete filled steel tubular column to a steel node according to claim 2, characterized in that the transitional structure (32) comprises a sleeve (322) which is arranged in the steel tube (11), the sleeve (322) being provided with a third pouring aperture (3221) allowing the concrete filled steel tubular column to be poured.
5. A steel pipe concrete column and steel node transitional coupling member according to claim 1, characterized in that the steel node (20) has a cross-sectional profile comparable to the cross-sectional profile of the steel pipe (11), the steel node (20) comprising a second node body (23), the outer periphery of the second node body (23) being connected to the edge of the support plate (31), the transitional coupling member (30) comprising a coupling (34) connecting the second node body (23) and the support plate (31) across the cross-section of the support plate (31).
6. A transitional coupling member of a concrete filled steel tubular column and a steel node according to claim 5, characterized in that said coupling element (34) is arranged vertically centred with respect to said transitional structure (32); and/or the connector (34) comprises a second cross rib, which connects the second node body (23) at its branching end.
7. A transitional coupling member of a concrete filled steel tubular column and a steel node according to claim 5, characterized in that the transitional coupling member (30) comprises ribs (35) for coupling the inner wall of the steel tube (11) with the support plate (31).
8. A connection structure of a concrete filled steel tubular column and a steel node, characterized in that the connection structure comprises a concrete filled steel tubular column (10), a steel node (20) and a transition connection member (30) according to any one of claims 1-7.
9. A method of connecting a concrete filled steel tubular column to a steel node, the method comprising:
s1, connecting a steel pipe concrete column (10) by using the transition connecting member (30) according to any one of claims 1 to 7, so that the supporting plate (31) is connected to the steel pipe (11) perpendicular to the axial direction of the steel pipe (11) of the steel pipe concrete column (10), and the transition structure (32) is connected with the steel pipe (11) and the supporting plate (31);
s2, casting and forming the concrete filled steel tube column (10) and connecting the supporting plate (31) and the steel nodes (20).
10. The method for connecting a concrete filled steel tubular column to a steel node according to claim 9, wherein in step S1, a slot adapted to the first cross rib (321) is formed in the steel tube (11), and the first cross rib (321) is inserted into the slot to connect the first cross rib (321) and the steel tube (11).
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| CN115450338B (en) * | 2022-10-09 | 2024-06-11 | 青岛强力钢结构有限公司 | Damping steel structure node member |
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