CN110241914B - Stiffness controllable assembled node structure and construction method thereof - Google Patents
Stiffness controllable assembled node structure and construction method thereof Download PDFInfo
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- CN110241914B CN110241914B CN201910457842.2A CN201910457842A CN110241914B CN 110241914 B CN110241914 B CN 110241914B CN 201910457842 A CN201910457842 A CN 201910457842A CN 110241914 B CN110241914 B CN 110241914B
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- column end
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to a rigidity-controllable assembly type node structure, which comprises a column end steel node and a beam end steel node connected with the column end steel node; the column end steel node comprises a column end plate, one side of the column end plate is provided with a column end connecting member, the other side of the column end plate is provided with a column end frame, the column end frame comprises a plurality of rectangular frames which are arranged in parallel, reinforcing steel bars can be inserted into the rectangular frames and connected with the rectangular frames, and two ends of each rectangular frame can be connected with the column end plate; the beam end steel node comprises a beam end plate, one side of the beam end plate is provided with a beam end connecting member, the beam end connecting member is hinged with a column end connecting member, and the beam end connecting member can rotate vertically relative to the column end connecting member. The invention can meet the earthquake-proof design requirements of strong column and weak beam, strong node and weak anchor. The method has good ductility and good energy consumption performance under the action of earthquake load, and fundamentally solves the defects that the rigid connection node is difficult to realize ductile deformation, has poor recovery capability and has small residual rigidity.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a rigidity-controllable assembled node structure and a construction method thereof.
Background
Prefabricated building is a house which is built by prefabricating part or all of the building components in a factory and then transporting the prefabricated building components to a construction site to assemble the components in a reliable connection mode. In recent years, with the great development of house industrialization, the demand for building industrialization has increased. The assembled structure is gradually active in the building field again with a series of advantages such as low pollution, high efficiency of construction and the like.
The nodes of the assembled structure are always the focus of building industrialization research. Researchers study the stress performance, the anti-seismic energy consumption capability, the ductility and the like of the assembled structure node through a large number of experiments, and based on the stress performance, the anti-seismic energy consumption capability, the ductility and the like, the node is improved and innovated so as to obtain the node with better performance.
The main stream of the assembled structural node is focused on the research on the form of the assembled node and the stress anti-seismic performance of the assembled node. The integrity of conventional wet joints is generally equivalent to cast-in-place structures, but the degree of assembly is too low to accommodate the development of building industrialization, while the integrity of conventional dry joints is too poor. In order to improve the earthquake-resistant performance of the fabricated structure and simultaneously adapt to the trend of building industrialization, at present, the nodes used in the fabricated frame structure are not usually purely nodes of a certain type, but rather the combination of certain nodes or improvement on the original connection modes can lead the connection to have better performance.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a rigidity-controllable assembled node structure and a construction method thereof.
The technical scheme is as follows: in order to solve the technical problems, the rigidity-controllable assembled node structure comprises a column end steel node and a beam end steel node connected with the column end steel node; the column end steel node comprises a column end plate, one side of the column end plate is provided with a column end connecting member, the other side of the column end plate is provided with a column end frame, the column end frame comprises a plurality of rectangular frames which are arranged in parallel, one end of each rectangular frame is connected with the column end plate, and the other end of each rectangular frame is suspended; the beam end steel node comprises a beam end plate, one side of the beam end plate is provided with a beam end connecting member, the beam end connecting member is hinged with a column end connecting member, and the beam end connecting member can rotate vertically relative to the column end connecting member.
Further, the column end connecting member comprises a column end lug plate vertically arranged in the middle of the column end plate, and the beam end connecting member comprises a beam end lug plate vertically arranged in the middle of the beam end plate, and the beam end lug plate is connected with the column end lug plate through a pin bolt.
Further, the upper and lower sides of post end otic placode all are provided with post end atress board, and the upper and lower side of beam end otic placode all sets up beam end atress board, and beam end atress board and post end atress board fixed connection.
Further, a stretch bending stress plate is further arranged at the joint of the beam end stress plate and the column end stress plate.
Further, a notch is formed in the middle of the transverse edge of the stretch bending stress plate.
Further, the stretch bending stress plate is provided with reinforcing ribs.
Further, the beam end plate other end is provided with the beam end frame, and the beam end frame includes a plurality of parallel arrangement's rectangle frame, and each rectangle frame one end is connected with the beam end plate, and the reinforcement frame is connected to the other end.
The invention also provides a construction method of the rigidity-controllable assembled node structure, which comprises the following steps:
Step one: manufacturing a column end steel node and a beam end steel node;
Step two: the method comprises the steps of prefabricating a reinforced concrete beam and a reinforced concrete column, wherein steel bars of the reinforced concrete beam are welded with beam end steel nodes, and steel bars of the reinforced concrete column are welded with column end steel nodes;
Step three: and (3) assembling and connecting the precast concrete beam and the precast concrete column, aligning the beam end lug plate and the column end lug plate, inserting a pin bolt, and connecting the beam end stress plate, the column end stress plate and the stretch bending stress plate by using bolts.
The beneficial effects are that: the invention has the following beneficial effects:
1. All-bolt connection is simple and convenient in field installation, easy for efficient construction, capable of realizing all-dry connection, suitable for large-scale production, and easy for standardization and industrialization.
2. The anti-seismic design requirements of strong columns, weak beams, strong nodes and weak anchors can be met. The method has the advantages that the method has good ductility and good energy consumption performance under the action of earthquake load, fundamentally solves the defects that the rigid connection node is difficult to realize ductile deformation, has poor recovery capability and has small residual rigidity, is very suitable for the earthquake-resistant design concept of strong nodes and weak anchors in China, and can adjust the distribution of the bending moment of the frame beam at the span center and the beam end through the relative rotation rigidity of the node under the action of gravity load, thereby achieving the purpose of reducing the section size of the frame beam, and the semi-rigid node can embody the earthquake-resistant concept of strong-column weak-beam and can meet the requirements of the current economic development level in China.
3. The high-strength steel has good deformation and energy consumption capability, and has obvious influence on improving the ductility and the shock resistance of the structure.
4. The rigidity is controllable, the structural failure mode is that the beam end leaning node part is changed from rigid connection to hinged failure, and the replaceable bolt is used for reinforcing and changing the rigidity, so that the structural failure repair is realized.
5. The node is simple and easy to calculate and design and has strong practicability.
Drawings
FIG. 1 is a schematic structural view of a column end steel joint;
FIG. 2 is a schematic view of a beam-end steel node;
FIG. 3 is a schematic view of a structure of a stretch bending stress plate;
fig. 4 is a schematic structural view of a steel member inside a beam-column joint formed by a beam-end steel joint and a column-end steel joint.
Fig. 5 is a schematic structural view of a concrete beam-column joint formed by a precast beam and a precast column.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A rigidity-controllable fabricated node construction as shown in fig. 1-5, comprising a column end steel node 1, and a beam end steel node 2 connected to the column end steel node 1; the column end steel node 1 comprises a column end plate 11, wherein one side of the column end plate 11 is provided with a column end connecting member, and the other side is provided with a column end frame which is used for supporting and connecting reinforcing steel bars of the precast concrete column 5; the column end frames comprise a plurality of rectangular frames 12 which are arranged in parallel, one end of each rectangular frame 12 is connected with a column end plate 11, the other end of each rectangular frame is suspended, steel bars of the precast concrete columns 5 penetrate through the rectangular frames, and the plurality of column end frames can be inserted in a crossing mode, so that a concrete column is provided with connecting nodes of a plurality of precast concrete beams 6, and meanwhile the precast concrete beams 6 are connected. The beam end steel node 2 comprises a beam end plate 21, one side of the beam end plate 21 is provided with a beam end connecting member, the beam end connecting member is hinged with a column end connecting member, and the beam end connecting member can rotate vertically relative to the column end connecting member. The beam end plate 21 other end is provided with the beam end frame, and the beam end frame includes a plurality of parallel arrangement's rectangle frame 22, and each rectangle frame 22 one end is connected with beam end plate 21, and reinforcement frame 23 is connected to the other end, and the reinforcing bar tip and the beam end plate 21 welding of precast concrete beam 6, rectangle frame 22 are used for supporting and connecting the reinforcing bar of precast concrete beam 6. The post end connecting member comprises a post end lug plate 13 vertically arranged in the middle of the post end plate 11, the beam end connecting member comprises a beam end lug plate 24 vertically arranged in the middle of the beam end plate 21, the beam end lug plate 24 is connected with the post end lug plate 13 through a bolt 3 to form a hinge structure, and the precast concrete beam 6 and the precast concrete column 5 can move relatively to consume seismic energy when an earthquake occurs. The upper and lower sides of post end otic placode 13 all are provided with post end atress board 14, and the top and the below of beam end otic placode 24 all set up beam end atress board 25, and beam end atress board 25 and post end atress board 14 fixed connection, beam end atress board 25 and post end atress board 14 junction still is provided with stretch-bending atress board 4, the transverse edge middle part of stretch-bending atress board 4 is provided with notch 41, and notch 41 is as the weak department of structure of stretch-bending atress board 4 for it destroys the position controllable when receiving external force. The stretch bending stress plate 4 is provided with reinforcing ribs 42, so that the structural stability of the stretch bending stress plate is ensured. By adopting stretch bending stress plates with different thicknesses, the rigidity of the joint is controllable.
The invention also provides a construction method of the rigidity-controllable assembled node structure, which comprises the following steps:
Step one: manufacturing a column end steel node 1 and a beam end steel node 2;
Step two: the method comprises the steps of prefabricating a reinforced concrete beam and a reinforced concrete column, wherein the steel bars of the reinforced concrete beam are welded with beam end steel nodes 2, and the steel bars of the reinforced concrete column are welded with column end steel nodes;
Step three: the precast concrete beam 6 and the precast concrete column 5 are assembled and connected, the beam end lug plate 24 and the column end lug plate 13 are aligned first, the pin bolt 3 is inserted, and then the beam end stress plate 25, the column end stress plate 14 and the stretch bending stress plate 4 are connected through bolts.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (3)
1. The utility model provides a controllable assembled node structure of rigidity which characterized in that: the beam end steel node is connected with the column end steel node; the column end steel node comprises a column end plate, one side of the column end plate is provided with a column end connecting member, the other side of the column end plate is provided with a column end frame, the column end frame comprises a plurality of rectangular frames which are arranged in parallel, one end of each rectangular frame is connected with the column end plate, and the other end of each rectangular frame is suspended; the beam end steel node comprises a beam end plate, one side of the beam end plate is provided with a beam end connecting member, the beam end connecting member is hinged with a column end connecting member, and the beam end connecting member can vertically and relatively rotate relative to the column end connecting member; the beam end plate is provided with a beam end frame at the other end, the beam end frame comprises a plurality of rectangular frames which are arranged in parallel, one end of each rectangular frame is connected with the beam end plate, and the other end of each rectangular frame is connected with the reinforcing frame;
the beam end connecting member comprises a beam end lug plate vertically arranged in the middle of the beam end plate, and the beam end lug plate is connected with the beam end lug plate through a pin bolt; the upper part and the lower part of the column end lug plate are respectively provided with a column end stress plate, and the upper part and the lower part of the beam end lug plate are respectively provided with a beam end stress plate which is fixedly connected with the column end stress plate; a stretch bending stress plate is further arranged at the joint of the beam end stress plate and the column end stress plate; the middle part of the transverse edge of the stretch bending stress plate is provided with a notch.
2. The stiffness controllable fabricated node construction of claim 1, wherein: and the stretch bending stress plate is provided with reinforcing ribs.
3. A method of constructing a stiffness controllable fabricated node construction according to any of claims 1-2, comprising the steps of:
Step one: manufacturing a column end steel node and a beam end steel node;
Step two: the method comprises the steps of prefabricating a reinforced concrete beam and a reinforced concrete column, wherein steel bars of the reinforced concrete beam are welded with beam end steel nodes, and steel bars of the reinforced concrete column are welded with column end steel nodes;
Step three: and (3) assembling and connecting the precast concrete beam and the precast concrete column, aligning the beam end lug plate and the column end lug plate, inserting a pin bolt, and connecting the beam end stress plate, the column end stress plate and the stretch bending stress plate by using bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910457842.2A CN110241914B (en) | 2019-05-29 | 2019-05-29 | Stiffness controllable assembled node structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910457842.2A CN110241914B (en) | 2019-05-29 | 2019-05-29 | Stiffness controllable assembled node structure and construction method thereof |
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| Publication Number | Publication Date |
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| CN110241914A CN110241914A (en) | 2019-09-17 |
| CN110241914B true CN110241914B (en) | 2024-11-12 |
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| CN201910457842.2A Active CN110241914B (en) | 2019-05-29 | 2019-05-29 | Stiffness controllable assembled node structure and construction method thereof |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111335462A (en) * | 2020-03-30 | 2020-06-26 | 郑州航空工业管理学院 | Pin shaft type prefabricated concrete connecting structure |
| CN112049452B (en) * | 2020-08-17 | 2021-09-03 | 同济大学 | Assembled displacement regulator suitable for removable even roof beam is connected |
| CN112499436A (en) * | 2020-12-11 | 2021-03-16 | 湖州职业技术学院 | Multi-degree-of-freedom weak connection node additionally provided with elevator steel shaft |
| CN113529947A (en) * | 2021-06-17 | 2021-10-22 | 北京工业大学 | Detachable and reusable full-bolt-pin-shaft-connected steel-structure beam column node |
| CN113529943A (en) * | 2021-07-21 | 2021-10-22 | 上海建工一建集团有限公司 | Concrete support and lattice column connecting device and method convenient to dismantle |
| CN113585512B (en) * | 2021-08-30 | 2023-03-28 | 尚庆鹏 | Assembled-based anti-seismic node structure |
| CN115977245B (en) * | 2023-03-21 | 2023-05-12 | 湖南大学 | High-energy-consumption high-bearing-capacity self-resetting beam column node |
| CN117090299B (en) * | 2023-10-07 | 2025-11-21 | 芜湖高屋工程技术咨询有限责任公司 | Strong node connection structure system of assembled concrete structure |
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| CN106978853A (en) * | 2017-05-05 | 2017-07-25 | 哈尔滨工业大学深圳研究生院 | A kind of controllable steel node of prefabricated assembled concrete structural plasticity |
| CN108867865A (en) * | 2018-07-02 | 2018-11-23 | 兰州理工大学 | It is a kind of to repair plastic hinge from loss energy |
| CN210713194U (en) * | 2019-05-29 | 2020-06-09 | 东南大学 | Stiffness controllable prefabricated joint structure |
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2019
- 2019-05-29 CN CN201910457842.2A patent/CN110241914B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978853A (en) * | 2017-05-05 | 2017-07-25 | 哈尔滨工业大学深圳研究生院 | A kind of controllable steel node of prefabricated assembled concrete structural plasticity |
| CN108867865A (en) * | 2018-07-02 | 2018-11-23 | 兰州理工大学 | It is a kind of to repair plastic hinge from loss energy |
| CN210713194U (en) * | 2019-05-29 | 2020-06-09 | 东南大学 | Stiffness controllable prefabricated joint structure |
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| CN110241914A (en) | 2019-09-17 |
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