CN114427256A - Steel column tooth-shaped splicing connection node - Google Patents
Steel column tooth-shaped splicing connection node Download PDFInfo
- Publication number
- CN114427256A CN114427256A CN202210110966.5A CN202210110966A CN114427256A CN 114427256 A CN114427256 A CN 114427256A CN 202210110966 A CN202210110966 A CN 202210110966A CN 114427256 A CN114427256 A CN 114427256A
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- steel column
- flange plate
- teeth
- layer steel
- prefabricated
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 120
- 239000010959 steel Substances 0.000 title claims abstract description 120
- 238000010276 construction Methods 0.000 abstract description 23
- 238000003466 welding Methods 0.000 abstract description 14
- 238000013461 design Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Classifications
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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
- 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
- E04B2001/2421—Socket type connectors
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a steel column tooth-shaped splicing connection node which comprises an upper layer steel column and a lower layer steel column, wherein an upper layer steel column flange plate is prefabricated on the outer side of the bottom of the upper layer steel column; the upper portion of the lower steel column flange plate is prefabricated with a connecting core cylinder, the outer side of the connecting core cylinder is provided with teeth and a circumferential opening, the periphery of the inner wall of the bottom of the upper steel column is prefabricated with teeth, the connecting core cylinder is inserted into the inner side of the bottom of the upper steel column in a matching mode, and the teeth of the connecting core cylinder and the teeth of the upper steel column are meshed with each other. The invention can ensure the reliable connection of the vertical components, reduce the number of bolts, avoid on-site welding, and has simple, convenient and quick on-site connection construction, thereby greatly improving the construction efficiency.
Description
Technical Field
The invention relates to the technical field of building structures, in particular to a tooth-shaped steel column splicing connection node.
Background
The fabricated steel structure building has the advantages of safety, reliability, low comprehensive cost, convenient construction, short construction period, environmental protection, sustainability and the like, and is widely popularized and applied in recent years. However, the existing steel structure nodes are multiple and complex in structure, and especially steel column all-welded connection nodes need a large amount of welding on site, so that more problems exist: the on-site welding construction efficiency is low, the welding quality is poor, the detachability is poor, the influence of the welding residual stress on the member under the action of the earthquake is large, the durability is poor, the environmental pollution is serious, and the like. If all adopt bolted connection, because bolt shear strength is not enough, accomplish to wait strong connection and then need a large amount of bolts, job site's work load is big, influences the construction progress. Therefore, the connection node which is more efficient and practical and is convenient for field construction is researched and developed, so that the construction quality and the construction period are guaranteed, and the anti-seismic performance of the structure is improved.
Disclosure of Invention
The invention provides a tooth-shaped steel column splicing connection node for solving the technical problems in the prior art, so as to solve the problems of low site construction efficiency, poor welding quality and poor anti-seismic performance and ensure the reliable connection of vertical components.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: a tooth-shaped steel column splicing connection node comprises an upper layer of steel column and a lower layer of steel column, wherein an upper layer of steel column flange plate is prefabricated on the outer side of the bottom of the upper layer of steel column, a closed lower layer of steel column flange plate is prefabricated on the top of the lower layer of steel column, and stiffening rib plates are prefabricated between the upper layer of steel column flange plate and the upper layer of steel column and between the lower layer of steel column flange plate and the lower layer of steel column; the upper portion of the lower steel column flange plate is prefabricated with a connecting core cylinder, the outer side of the connecting core cylinder is provided with teeth and a circumferential opening, the periphery of the inner wall of the bottom of the upper steel column is prefabricated with teeth, the connecting core cylinder is inserted into the inner side of the bottom of the upper steel column in a matching mode, and the teeth of the connecting core cylinder and the teeth of the upper steel column are meshed with each other.
And the upper-layer steel column flange plate and the lower-layer steel column flange plate are connected by high-strength bolts.
The connecting core cylinder is surrounded by four L-shaped toothed core ribs which are arranged at intervals and provided with teeth on the outer side.
The distance between the outer side wall of the connecting core cylinder and the inner side wall of the upper-layer steel column is not more than 2mm, and the distance is determined according to design when higher precision is required.
The invention has the advantages and positive effects that: through the structure that steel column grafting and tooth meshing about adopting, make connected node can undertake pulling force and shear force, guarantee the reliable connection of vertical component, reduce bolt quantity, avoid field weld, be applicable to assembled steel construction field connection, accord with assembled steel construction convenient and fast's characteristics, the field connection construction is simple, convenient and fast, can improve the efficiency of construction greatly, has solved the problem that field construction efficiency is low, welding quality is poor, anti-seismic performance is poor.
Drawings
FIG. 1 is a schematic elevational view of the present invention;
fig. 2 is a schematic plan view of the present invention.
In the figure: 1. an upper layer steel column; 2. a lower layer steel column; 3. an upper steel column flange plate; 4. a lower steel column flange plate; 5. a stiffening rib plate; 6. a toothed core rib; 7. teeth; 8. high strength bolt.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 and 2, a tooth-shaped steel column splicing connection node includes an upper layer steel column 1 and a lower layer steel column 2, an upper layer steel column flange plate 3 is prefabricated at the outer side of the bottom of the upper layer steel column 1, a closed lower layer steel column flange plate 4 is prefabricated at the top of the lower layer steel column 2, and stiffening rib plates 5 are prefabricated between the upper layer steel column flange plate 3 and the upper layer steel column 1 and between the lower layer steel column flange plate 4 and the lower layer steel column 2.
The upper portion of the lower steel column flange plate 4 is prefabricated with a connecting core cylinder, the outer side of the connecting core cylinder is provided with teeth 7 and a circumferential opening, the periphery of the inner wall of the bottom of the upper steel column 1 is prefabricated with teeth 7, the connecting core cylinder is inserted into the inner side of the bottom of the upper steel column 1 in a matching mode, and the teeth of the connecting core cylinder and the teeth of the upper steel column are meshed with each other.
And if the bearing capacity is insufficient, the upper-layer steel column flange plate 3 and the lower-layer steel column flange plate 4 are connected by adopting high-strength bolts 8.
In this embodiment, the connecting core cylinder is surrounded by four spaced L-shaped toothed core ribs 6 with teeth 7 on the outer side, and has simple structure and good strength, and is convenient to insert into the bottom of the upper steel column 1 to mesh with the teeth on the inner side. The distance between the outer side wall of the connecting core cylinder and the inner side wall of the upper-layer steel column 1 is not more than 2mm, and the distance is determined according to design when higher precision is required, so that the connecting node can better bear the pulling and shearing functions.
The steel column is connected on site through the splicing occlusion and the bolt connection of the toothed core ribs. Specifically, an upper-layer steel column flange plate 3 is arranged on the outer side of the bottom of an upper-layer steel column, a closed lower-layer steel column flange plate 4 is arranged on the top of a lower-layer steel column, the upper-layer steel column and the lower-layer steel column are connected through flange plate bolts, and a stiffening rib plate 5 is arranged on the flange plate according to requirements; four L-shaped core ribs 6 with teeth are welded at the upper part of a lower steel column flange plate 4, the distance between the outer wall of a rib plate of each core rib and the inner wall of an upper steel column is not more than 2mm, and the distance is determined according to design when higher precision is required; set up tooth all around the 1 bottom inner wall of upper steel column, set up tooth on the core rib, inject the core rib of lower floor's steel column 2 into upper steel column 1, reach zonulae occludens through the compressive deformation and the intermeshing effect of tooth. Welding the flange plate with the upper-layer steel column and the lower-layer steel column, welding the core rib with the flange plate, welding the stiffening rib plate with the flange plate and the steel column, and processing the teeth of the core rib and the teeth of the inner wall of the upper-layer steel column in a factory; in the construction site, only the splicing and meshing connection of the upper steel column and the lower steel column and the bolt connection of the flange plate are needed, the connection construction is simple, convenient and fast, and the construction efficiency can be greatly improved.
For a common flange plate bolt connection node, all the high-strength bolts bear the combined action of tensile force and shearing force, and if equal-strength connection is required, a large number of high-strength bolts are required. For the bolt tooth-shaped splicing combination connection node, the splicing and meshing action of the core rib and the upper-layer steel column can be used for playing the role of pulling and shearing required by the high-strength bolt. Therefore, the number of bolts can be reduced to a certain extent, the site construction burden is reduced, and the efficiency is improved. Under the condition that the outer edge of a building is limited by the outline, flange plate bolt connection can be arranged on the side surface of a steel column part, and the stress is mainly applied by means of tooth-shaped plug connection.
The splicing and meshing action of the tooth grooves on the inner wall of the upper-layer steel column and the toothed core ribs needs to bear the pulling and shearing action at the connecting nodes, so that the machining precision of the tooth grooves needs to be guaranteed within a range of 2mm, but the machining precision is not limited within the range of 2mm, and the machining precision is determined according to the design when higher precision is required. Meanwhile, the thickness of the rib plate of the core rib, the size of a welding seam, the height of the tooth groove along the axial force direction of the steel column, the tooth height, the tooth thickness, the tooth angle and the like of the teeth are determined through calculation, so that the smooth meshing of the teeth and the tight connection and stress are guaranteed.
Experimental research and engineering practice prove that the reliable connection of the steel columns can be ensured by adopting the nodes, the construction efficiency is improved, the construction quality is ensured, the construction period is shortened, and the anti-seismic performance is improved.
The design and construction process of the embodiment:
the method comprises the steps of firstly) analyzing and calculating the size and the thickness of a flange plate at the end part of a steel column, calculating the number, the section and the thickness of stiffening rib plates required to be arranged, and calculating the size of welding seams among the stiffening rib plates, the flange plate and the steel column.
And secondly) analyzing and calculating the size and thickness of the core rib, the height along the axial force direction of the steel column, the size of a welding seam between the core rib and the lower-layer steel column flange plate, the tooth height, the tooth thickness, the tooth angle and the like of teeth, the number and the size of high-strength bolts and other parameters.
And thirdly) manufacturing an upper-layer steel column, a lower-layer steel column, a flange plate, a stiffening rib plate and a core rib in a factory, wherein the inner wall of the upper-layer steel column is provided with teeth, and the core rib is provided with teeth, so that the machining precision is ensured within the range of 2mm, and the steel column is determined according to the design when higher precision is required.
Fourthly), welding the flange plate, the stiffening rib plate, the core rib and the steel column in a factory, and forming holes in the flange plate according to the standard holes of the bolts.
Fifthly), splicing the upper-layer steel column and the lower-layer steel column on site: and inserting the core ribs and the upper-layer steel column to enable the teeth to be mutually and tightly occluded until the flange plates of the upper steel column and the lower steel column are mutually contacted.
And sixthly), connecting the flange plates of the upper steel column and the lower steel column through high-strength bolts to complete node connection.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (4)
1. A tooth-shaped splicing connection node for a steel column comprises an upper-layer steel column and a lower-layer steel column, and is characterized in that an upper-layer steel column flange plate is prefabricated on the outer side of the bottom of the upper-layer steel column, a closed lower-layer steel column flange plate is prefabricated on the top of the lower-layer steel column, and stiffening rib plates are prefabricated between the upper-layer steel column flange plate and the upper-layer steel column and between the lower-layer steel column flange plate and the lower-layer steel column;
the upper portion of the lower steel column flange plate is prefabricated with a connecting core cylinder, the outer side of the connecting core cylinder is provided with teeth and a circumferential opening, the periphery of the inner wall of the bottom of the upper steel column is prefabricated with teeth, the connecting core cylinder is inserted into the inner side of the bottom of the upper steel column in a matching mode, and the teeth of the connecting core cylinder and the teeth of the upper steel column are meshed with each other.
2. The steel column toothed plug connection node according to claim 1, wherein the upper steel column flange plate and the lower steel column flange plate are connected by high-strength bolts.
3. The steel column toothed plug connection node according to claim 1, wherein said connection core barrel is surrounded by four spaced L-shaped toothed core ribs with teeth on the outside.
4. The steel column tooth-shaped plug connection node according to claim 3, wherein the distance between the outer side wall of the connection core cylinder and the inner side wall of the upper-layer steel column is not more than 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210110966.5A CN114427256A (en) | 2022-01-29 | 2022-01-29 | Steel column tooth-shaped splicing connection node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210110966.5A CN114427256A (en) | 2022-01-29 | 2022-01-29 | Steel column tooth-shaped splicing connection node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114427256A true CN114427256A (en) | 2022-05-03 |
Family
ID=81314145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210110966.5A Pending CN114427256A (en) | 2022-01-29 | 2022-01-29 | Steel column tooth-shaped splicing connection node |
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| Country | Link |
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| CN (1) | CN114427256A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676771A (en) * | 2005-05-17 | 2005-10-05 | 周兆弟 | Double-end inserting elastic meshing body pile connecting end plate and prefab |
| WO2013037944A1 (en) * | 2011-09-14 | 2013-03-21 | Simon Bullivant | Coupling assembly and method for coupling reinforcing bars |
| CN107012956A (en) * | 2016-01-27 | 2017-08-04 | 李全民 | Mechanical connecting device and its application method between a kind of housing industrialization component |
| CN107268785A (en) * | 2017-05-03 | 2017-10-20 | 湖南固尔邦幕墙装饰股份有限公司 | Architectural shape connecting structure and its installation method |
| CN110409614A (en) * | 2019-08-02 | 2019-11-05 | 中国航空规划设计研究总院有限公司 | A kind of the benzvalene form column attachment device and its construction method of resistance to plucking |
| CN112282057A (en) * | 2020-11-20 | 2021-01-29 | 北京建筑大学 | Core barrel flange closed section column joint with self-tapping bolt and construction method thereof |
-
2022
- 2022-01-29 CN CN202210110966.5A patent/CN114427256A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1676771A (en) * | 2005-05-17 | 2005-10-05 | 周兆弟 | Double-end inserting elastic meshing body pile connecting end plate and prefab |
| WO2013037944A1 (en) * | 2011-09-14 | 2013-03-21 | Simon Bullivant | Coupling assembly and method for coupling reinforcing bars |
| CN107012956A (en) * | 2016-01-27 | 2017-08-04 | 李全民 | Mechanical connecting device and its application method between a kind of housing industrialization component |
| CN107268785A (en) * | 2017-05-03 | 2017-10-20 | 湖南固尔邦幕墙装饰股份有限公司 | Architectural shape connecting structure and its installation method |
| CN110409614A (en) * | 2019-08-02 | 2019-11-05 | 中国航空规划设计研究总院有限公司 | A kind of the benzvalene form column attachment device and its construction method of resistance to plucking |
| CN112282057A (en) * | 2020-11-20 | 2021-01-29 | 北京建筑大学 | Core barrel flange closed section column joint with self-tapping bolt and construction method thereof |
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