CN113235733A - Inter-column support and steel column connection node structure and method - Google Patents
Inter-column support and steel column connection node structure and method Download PDFInfo
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- CN113235733A CN113235733A CN202110394443.3A CN202110394443A CN113235733A CN 113235733 A CN113235733 A CN 113235733A CN 202110394443 A CN202110394443 A CN 202110394443A CN 113235733 A CN113235733 A CN 113235733A
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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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
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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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
-
- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
-
- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2445—Load-supporting elements with reinforcement at the connection point other than the connector
-
- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/246—Post to post connections
-
- 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
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B2001/2466—Details of the elongated load-supporting parts
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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 utility model provides a joint structure and a method for connecting a support and a steel column between columns, which comprises the following steps: the steel column, the support between the columns, the vertical rib plate and the horizontal rib plate; the inter-column support comprises a vertical section, a bending section and an inclined section which are sequentially arranged, the vertical section and the bending section are welded with the steel column into a whole through a vertical rib plate, a horizontal rib plate is arranged between the bending section and the steel column, and the inclined section is used for supporting; the structure integrity is strong, the rigidity and the strength of the node are high, the node structure is simple, steel is saved, and the construction and the installation are convenient; the problem of the regional limitation of column base that causes because technology requirement, door and window entrance to a cave and column base support node is solved, the length of the vertical section of intercolumnar support is adjustable, has not only avoided the regional limited difficult problem that can't set up the support of column base, can realize the designability of structure calculation moreover.
Description
Technical Field
The utility model belongs to the technical field of building structure, concretely relates to support and steel column connection node structure between post.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The steel structure building has the advantages of light weight, high strength, quick construction and the like, has unique development advantages in three aspects of high, large and light compared with other building structures, and flowers of the steel structure building are generated all the time along with the sudden and violent development of the domestic steel yield.
The horizontal rigidity of the steel structure is weak, so that a proper amount of horizontal side-shift-resistant components, namely inter-column supports, need to be uniformly configured in a steel structure building, the inter-column supports are used as the horizontal side-shift-resistant components to mainly bear the horizontal load of the structure, the horizontal load of the structure is converted into component shaft internal force, the component internal force of the inter-column supports is large, and therefore the design of the inter-column supports and the steel column connection nodes is particularly important.
The inter-column support is usually directly connected with the column base of the steel column, and the load is directly transmitted to the column base node, however, in the actual engineering, the column base area is limited by factors such as the requirement of a process pipeline, the opening of a door and window opening, the construction of the column base node and the like, so that the inter-column support cannot be arranged at the most reasonable position, and the designability of the overall structural performance is poor; when the column base is hidden in the inter-column support and connected, the internal force of the steel column at the lower end of the steel column and the inter-column support connection node is too large, so that the structure is heavy, steel is wasted, the node structure is complex, and construction and installation are inconvenient.
Disclosure of Invention
In order to solve the above problems, the present disclosure provides an inter-column support and steel column connection node structure and a method.
In a first aspect, the present disclosure provides an intercolumnar bracing and steel column connection node structure, including: the steel column, the support between the columns, the vertical rib plate and the horizontal rib plate; the support is including the vertical section, the bending segment and the slope section that set gradually between the post, and vertical section and bending segment are through vertical floor and steel column welding one-tenth whole, set up horizontal floor between bending segment and the steel column, and the slope section is used for supporting.
In a second aspect, the present disclosure provides a construction method of a joint structure for connecting a steel column and an inter-column support, including:
connecting the vertical section and the bending section of the inter-column support with one side of a vertical ribbed plate in a welding mode, and connecting the other side of the vertical ribbed plate with the steel column in a welding mode;
installing a horizontal rib plate between the bending section and the steel column in a welding mode;
and mounting the workpiece to be supported to the end part of the inclined section, so that the inclined section supports the workpiece to be supported and transfers the horizontal load.
Compared with the prior art, this disclosure possesses following beneficial effect:
1. the inter-column support and steel column connection node structure adopts a steel column, an inter-column support, a vertical rib plate and a horizontal rib plate; the steel bar reinforced node has the advantages of strong structural integrity, high rigidity and strength of the node, simple node structure, steel saving and convenient construction and installation.
2. According to the structure form of the joint between the intercolumn support and the steel column, the intercolumn support comprises a vertical section, a bending section and an inclined section which are sequentially arranged, the vertical section and the bending section are welded with the steel column into a whole through a vertical rib plate, a horizontal rib plate is arranged between the bending section and the steel column, and the inclined section is used for supporting.
3. The vertical section of the inter-column support strengthens the weak axis rigidity of the steel column, not only bears the internal force generated by the inter-column support in the direction of the weak axis of the steel column, but also can resist the bending moment generated by the integral structure in the direction of the weak axis at the lower end of the steel column.
4. The support between the columns is formed by bending, and the bending section area is provided with a plurality of layers of horizontal rib plates, so that the structural integrity is strong, and the rigidity and the strength of the node area are high.
5. The column base node of the structure is simple, and the performance requirement on the lower base support is reduced.
6. The inter-column support and steel column connecting node is simple in structure, saves steel, and is convenient to construct and install.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic structural view of an intercolumnar strut and steel column joint structure according to the present disclosure;
FIG. 2 is an elevation view of a structural schematic of an intercolumn support and steel column connection node structure according to the present disclosure;
FIG. 3 is a side view of a structural schematic of an intercolumn support and steel column connecting node structure according to the present disclosure;
FIG. 4 is a top view of a structural schematic of an intercolumn support and steel column connection node structure according to the present disclosure;
FIG. 5 is a cross-sectional view of a cross-sectional form of an intercolumnar support of the present disclosure;
the steel column comprises a steel column 1, a steel column 2, a column support 3, a vertical rib plate 4 and a horizontal rib plate.
The specific implementation mode is as follows:
the present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1
As shown in fig. 1, an inter-column support and steel column connecting node structure includes: the steel column comprises a steel column 1, an intercolumn support 2, a vertical rib plate 3 and a horizontal rib plate 4; the inter-column support 2 comprises a vertical section, a bending section and an inclined section which are sequentially arranged, the vertical section and the bending section are welded into a whole with the steel column 1 through a vertical rib plate 3, a horizontal rib plate 4 is arranged between the bending section and the steel column 1, and the inclined section is used for supporting. The vertical section is used as a stiffening flange plate in the direction of the weak axis of the steel column 1 and mainly bears bending moment in the direction of the weak axis of the steel column 1, and the horizontal rib plate is mainly used for reinforcing the bending section of the inter-column support 2 and bearing the internal force transmitted from the inter-column support 2; the length of the vertical section of the support between the columns is adjustable, so that the problem that the support cannot be set due to the limitation of a column base area is avoided, and the designability of structural calculation can be realized.
Further, the length that supports the vertical section between the post is adjustable, can support the length of vertical section between the post according to job site environment adjustment, and the reason of adjustment includes: 1. the method can be adjusted according to the process requirements and the limits of door and window openings and column base support nodes, and 2, the optimization design can be carried out according to structural calculation analysis indexes; specifically, the inter-column support comprises a vertical section, a bending section and an inclined section, and the bending section area can be moved downwards by a set distance according to construction requirements, so that the length of the vertical section is reduced, or the bending section is moved upwards by the set distance, so that the vertical section is lengthened; if the support between the columns is a round steel pipe, the bending section can be bent by adopting a hydraulic pipe bending machine.
As a specific embodiment, the steel column 1 may be an H-shaped steel column.
The end parts of the vertical rib plates 3 are higher than the bending sections supported between the columns by a set length which is 20-150 mm. And the vertical rib plate 3 is used for connecting the intercolumnar bracing 2 and the web plate of the steel column 1.
Furthermore, the horizontal rib plates, the inter-column supports, the vertical rib plates and the steel column web plates are welded into a whole. As shown in fig. 1, the horizontal rib is disposed in and near the bending section, wherein the horizontal rib is disposed between the bending section and the steel column, and the horizontal rib is also disposed in the region of the inclined end near the bending section,
the number, the inclination angle and the distance of the horizontal rib plates are adjustable and can be adjusted according to the site construction environment. The vertical ribbed slab is provided with at least one, the number, the inclination angle and the distance of the vertical ribbed slab are all adjustable, and the vertical ribbed slab can adopt an interrupted type or a supporting rod type.
When a horizontal ribbed plate is arranged, the horizontal ribbed plate is perpendicular to the steel column or the horizontal ribbed plate is inclined to the steel column. When a plurality of horizontal ribs are provided, the plurality of horizontal ribs have a set distance therebetween.
In one embodiment, the plurality of horizontal ribs have the same set distance therebetween, and in another embodiment, the plurality of horizontal ribs have different set distances therebetween.
The further technical scheme is that a plurality of horizontal rib plates are arranged in parallel, a set angle is formed between each horizontal rib plate and the steel column, and the preferred set angle is a right angle.
In one embodiment, two or more horizontal ribs among the plurality of horizontal ribs have a predetermined angle therebetween. The specific size of the adopted section bar can be input into a mechanical model for calculation to obtain the set angle so as to obtain the node structure according with the mechanical characteristics.
The cross section of the inter-column support 2 comprises but is not limited to a circle, a square, an H-shaped, a groove or a triangle, the inter-column support can be formed by bending a round steel pipe, a square steel pipe, a channel steel, an H-shaped steel and an angle steel, and the inter-column support 2 can be used as a process pipeline. Taking the inter-column support as a round steel pipe as an example, the inter-column support is formed by bending a vertical round steel pipe, and the inter-column support can also be a bent round steel pipe, so that the inter-column support is provided with a bending section, an inclined section and a vertical section; the vertical section is used as a stiffening flange plate in the direction of the weak axis of the steel column, and the vertical section bears bending moment in the direction of the weak axis of the steel column; and a plurality of layers of horizontal rib plates are arranged in the bending section area.
Example 2
A construction method of a joint structure for connecting an intercolumnar bracing and a steel column comprises the following steps:
connecting the vertical section and the bending section of the inter-column support with one side of a vertical ribbed plate in a welding mode, and connecting the other side of the vertical ribbed plate with the steel column in a welding mode;
connecting the bending section of the inter-column support, the steel column and the vertical rib plate together by using the horizontal rib plate in a welding mode;
and mounting the workpiece to be supported to the end part of the inclined section, so that the inclined section supports the workpiece to be supported and transfers the horizontal load.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. The utility model provides an intercolumnar bracing and steel column connected node structure which characterized in that includes: the steel column, the support between the columns, the vertical rib plate and the horizontal rib plate; the support is including the vertical section, the bending segment and the slope section that set gradually between the post, and vertical section and bending segment are through vertical floor and steel column welding one-tenth whole, set up horizontal floor between bending segment and the steel column, and the slope section is used for supporting.
2. The intercolumnar support and steel column connecting node structure of claim 1, wherein the vertical section of the intercolumnar support is adjustable in length and the vertical section is adjustable by adjusting the location of the bent section in the intercolumnar support.
3. The intercolumnar support and steel column connecting node structure of claim 1, wherein the ends of the vertical ribs are raised a set length above the bend of the intercolumnar support.
4. The intercolumn brace and steel column connecting node structure of claim 1, wherein the horizontal rib plates are welded integrally with the intercolumn brace, the vertical rib plates, and the steel column.
5. The inter-column support and steel column connecting node structure according to claim 1, wherein at least one of the horizontal ribs is provided.
6. The inter-column support and steel column connecting node structure according to claim 5, wherein when one horizontal rib is provided, the horizontal rib is disposed vertically or obliquely to the steel column.
7. The inter-column support and steel column connecting node structure according to claim 5, wherein when the plurality of horizontal ribs are provided, a set distance is provided between the plurality of horizontal ribs.
8. The inter-column support and steel column connecting node structure according to claim 7, wherein a plurality of horizontal rib plates are arranged in parallel, and a set angle is provided between each of the plurality of horizontal rib plates and the steel column.
9. The inter-column support and steel column connecting node structure according to claim 7, wherein the cross-section of the inter-column support includes, but is not limited to, circular, square, H-shaped, channel-shaped, or triangular.
10. A construction method of a joint structure for connecting an intercolumnar bracing and a steel column is characterized by comprising the following steps:
connecting the vertical section and the bending section of the inter-column support with one side of a vertical ribbed plate in a welding mode, and connecting the other side of the vertical ribbed plate with the steel column in a welding mode;
installing a horizontal rib plate between the bending section and the steel column in a welding mode;
and mounting the workpiece to be supported to the end part of the inclined section, so that the inclined section supports the workpiece to be supported and transfers the horizontal load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110394443.3A CN113235733B (en) | 2021-04-13 | 2021-04-13 | Inter-column support and steel column connection node structure and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110394443.3A CN113235733B (en) | 2021-04-13 | 2021-04-13 | Inter-column support and steel column connection node structure and method |
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| Publication Number | Publication Date |
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| CN113235733A true CN113235733A (en) | 2021-08-10 |
| CN113235733B CN113235733B (en) | 2023-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627958A (en) * | 2022-12-01 | 2023-01-20 | 北京市第三建筑工程有限公司 | Inclined adduction transformation structure suitable for super high-rise building and construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014623A1 (en) * | 1979-01-23 | 1980-08-20 | SOMEFRAN Société d'Exploitation des BREVETS MEFRAN | Bracing for a scaffold |
| CN203099262U (en) * | 2012-12-24 | 2013-07-31 | 合肥市东良汽车配件有限公司 | Support |
| CN204590258U (en) * | 2015-01-09 | 2015-08-26 | 中国建筑东北设计研究院有限公司 | A kind ofly be suitable for the lower end that box-shaped support is connected with i-shaped roof beam and build node |
| CN205369973U (en) * | 2016-03-04 | 2016-07-06 | 四川省建筑科学研究院 | Spatial grid structure bucking restraint reinforcing apparatus |
| CN210917730U (en) * | 2019-10-17 | 2020-07-03 | 山东聊城科创钢构有限公司 | Constructional steel constructs support frame |
-
2021
- 2021-04-13 CN CN202110394443.3A patent/CN113235733B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014623A1 (en) * | 1979-01-23 | 1980-08-20 | SOMEFRAN Société d'Exploitation des BREVETS MEFRAN | Bracing for a scaffold |
| CN203099262U (en) * | 2012-12-24 | 2013-07-31 | 合肥市东良汽车配件有限公司 | Support |
| CN204590258U (en) * | 2015-01-09 | 2015-08-26 | 中国建筑东北设计研究院有限公司 | A kind ofly be suitable for the lower end that box-shaped support is connected with i-shaped roof beam and build node |
| CN205369973U (en) * | 2016-03-04 | 2016-07-06 | 四川省建筑科学研究院 | Spatial grid structure bucking restraint reinforcing apparatus |
| CN210917730U (en) * | 2019-10-17 | 2020-07-03 | 山东聊城科创钢构有限公司 | Constructional steel constructs support frame |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627958A (en) * | 2022-12-01 | 2023-01-20 | 北京市第三建筑工程有限公司 | Inclined adduction transformation structure suitable for super high-rise building and construction method |
| CN115627958B (en) * | 2022-12-01 | 2023-03-21 | 北京市第三建筑工程有限公司 | Inclined adduction transformation structure suitable for super high-rise building and construction method |
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| Publication number | Publication date |
|---|---|
| CN113235733B (en) | 2023-01-20 |
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