CN113700363A - Assembled easy-to-reset rotating energy consumption node - Google Patents
Assembled easy-to-reset rotating energy consumption node Download PDFInfo
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- CN113700363A CN113700363A CN202110877686.2A CN202110877686A CN113700363A CN 113700363 A CN113700363 A CN 113700363A CN 202110877686 A CN202110877686 A CN 202110877686A CN 113700363 A CN113700363 A CN 113700363A
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- node
- rotating
- energy consumption
- disc
- angle steel
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/024—Structures with steel columns and beams
Abstract
The invention discloses an assembled easy-to-reset rotary energy dissipation node which comprises a rotary beam, a rotary outer disc, a disc spring set, a high-strength bolt, energy dissipation angle steel, a connecting beam, a steel beam and a steel column. Use high strength bolt to connect rolling disc and rotation outer dish, the rolling disc passes through the helicoid laminating with the rotation outer dish, and install dish spring group under the nut of high strength bolt and the bolt head, when the structure received horizontal seismic load, the node uses high strength bolt to take place to rotate as rotation center, both sides rotate the interval increase between the outer dish, the compressive capacity increase of dish spring group, the elasticity of dish spring group will show the residual deformation who reduces the node, frictional force performance energy dissipation effect between the helicoid, collision damage component takes place when avoiding the node to rotate. The node has the characteristic of assembly type, is convenient to construct and install, and after the node rotates when encountering an earthquake, only the energy-consuming angle steel is yielded to enter a plastic stage, and other components are all in an elastic stage, so that important components are prevented from being damaged in the earthquake.
Description
Technical Field
The invention relates to an assembled easy-reset rotating energy dissipation node, and belongs to the technical field of structural energy dissipation and shock absorption of civil engineering.
Background
The assembled building becomes the key point of future building industrialization development due to the advantages of environmental protection, high efficiency and the like, on the other hand, an earthquake has a great threat to the assembled building, and the improvement of the earthquake-resistant toughness of the assembled structure has important significance. The node domain of traditional assembled steel node easily suffers serious destruction for node deformability and power consumption ability are not enough, can move the plastics hinge outward from the node domain through carrying out partial weakening to the girder steel, improve the deformability and the power consumption ability of node. However, this method still consumes seismic energy by plastic deformation of the structural member itself, which will cause permanent damage to the structural member, so that there is a large residual deformation after the structural member is earthquake, which is difficult to maintain and causes serious economic loss.
Disclosure of Invention
The invention aims to overcome the defects in the background art and effectively reduce the residual deformation of a steel structure node while dissipating seismic energy.
In order to improve the anti-seismic toughness of the structure and effectively reduce the residual deformation of the steel structure node while effectively dissipating seismic energy, the invention provides a novel assembly type node, which avoids the node domain from generating plastic hinges through a rotation center which is manually arranged, and has strong energy consumption capability and small residual deformation.
According to the invention, the rotating disc and the rotating outer disc are connected by using the high-strength bolt, the rotating disc and the rotating outer disc are attached through the spiral surface, and the disc spring group is arranged under the nut and the bolt head of the high-strength bolt. The webs of the connecting beam and the rotating beam are processed into corresponding arcs, so that the structural member is prevented from being damaged by collision when the node rotates. The energy-consuming angle steel connected with the connecting beam and the rotating beam through bolts effectively improves the strength, rigidity, shearing resistance and energy-consuming capacity of the node. The node has higher initial rotational rigidity and stronger resetting capability by applying pretightening force to the high-strength bolt. The node has the characteristic of assembly type, is convenient to construct and install, and after the node rotates when encountering an earthquake, only the energy-consuming angle steel is yielded to enter a plastic stage, and other components are all in an elastic stage, so that important components are prevented from being damaged in the earthquake.
In order to achieve the purpose, the invention adopts the following technical scheme:
an assembled easy-reset rotating energy consumption node mainly comprises a rotating beam (1), a rotating outer disc (2), a disc spring set (3), a high-strength bolt (4), energy consumption angle steel (5), a connecting beam (6), a steel beam (7) and a steel column (8). Bolt holes are processed in the end plates (20) of the connecting beams (6) and are used for being connected with the steel columns (8) through bolts. Bolt holes are processed on the stiffening plates (18) of the connecting beams (6) and are used for being connected with the connecting plates (15) of the rotating outer discs (2) through bolts. The end part of the web plate (19) of the connecting beam (6) is processed into a circular arc shape. Energy-consuming angle steels (5) are symmetrically arranged on two sides of the rotating beam (1) and the connecting beam (6) and are connected through bolts. The energy consumption angle steel (5) is provided with a weakening section (17) in a processing mode, and the purpose is to artificially control the plastic area of the energy consumption angle steel (5) and increase the deformation capacity and the energy consumption capacity of the energy consumption angle steel (5). The rotating beam (1) comprises a flange (9), an end plate (10) and a web plate (11), and bolt holes are machined in the flange (9) and used for being connected with energy-consuming angle steel bolts. Bolt holes are processed on the end plates (10) of the rotating beam (1) so that the rotating beam (1) is connected with the steel beam (7) through bolts. Bolt holes are processed in the positions, close to the flanges (9), of the web plates (11) of the rotating beams (1) and are used for being connected with energy-consuming angle steel (5) through bolts. The end part of the web plate (11) of the rotary beam (1) is processed into an arc shape, and the shape of the arc web plate (19) corresponds to that of the connecting beam (6), so that when the node rotates, the rotary beam (1) and the connecting beam (6) cannot be in contact collision to damage components. A rotating disc (12) is machined on a web plate (11) of the rotating beam (1), a first spiral surface (13) is machined on the rotating disc (12), and a bolt hole is machined in the circle center. A second spiral surface (14) is processed on the rotary outer disc (2), and a bolt hole is processed at the circle center. Slotted holes (16) are processed on the connecting plates (15) of the rotating outer disc (2) so as to ensure that the bolts do not restrict the horizontal displacement of the rotating outer disc (2) while shearing. The two sides of the rotating beam (1) and the connecting beam (6) are symmetrically provided with the rotating outer discs (2), and the connecting plate (15) of the rotating outer discs (2) is connected with the stiffening plate (18) of the connecting beam (6) through bolts. The second spiral surface (14) on the rotating outer disc (2) corresponds to the first spiral surface (13) on the rotating disc (12) and is connected with the first spiral surface through a high-strength bolt (4), and the high-strength bolt (4) is provided with a nut and a bolt head which are symmetrically provided with disc spring groups (3).
When an earthquake occurs, the structure is subjected to horizontal load, and the node rotates by taking the high-strength bolt (4) as a rotation center. Because rolling disc (12) and rotation outer dish (2) are in the same place through first helicoid (13) and second helicoid (14) laminating, relative rotation between rolling disc (12) and the rotation outer dish (2) can make both sides rotate outer dish (2) interval increase, dish spring group (3) compressive capacity increase, produce frictional force dissipation energy between first helicoid (13) and second helicoid (14), the elasticity of dish spring group (3) provides the restoring force of node, reduce the residual deformation of node, make it have the advantage of easy reseing. Meanwhile, the energy consumption angle steel (5) deforms due to relative deformation between the connecting beam (6) and the rotating beam (1), and the weakening section (17) of the energy consumption angle steel (5) yields to enter a plastic stage so as to dissipate energy.
The energy consumption angle steel (5) enhances the energy consumption capability of the node, and effectively improves the rigidity, strength and shear resistance of the node. Prestress is applied to the high-strength bolt (4), the disc spring group (3) is subjected to pre-compression, the rotating disc (12) and the rotating outer disc (2) are compressed, and the outer load needs to overcome the pre-compression of the disc spring group (3) to enable the node to rotate, so that the initial rotational rigidity of the node is effectively improved; meanwhile, the total compression amount of the disc spring set (3) after the node rotates is increased due to the pre-compression of the disc spring set (3), the restoring force provided by the disc spring set (3) is increased, and the resetting capacity of the node is enhanced.
The node has the characteristic of assembly, all components are prefabricated in factories, welding is not needed among the components, and the components are connected by adopting on-site bolts, so that the node is convenient to construct and install. After the node rotates, only the weakening section of the energy-consuming angle steel (5) is subjected to yielding to enter a plastic stage, and other components are in an elastic stage, so that important components such as a steel beam (7), a steel column (8) and the like are prevented from being damaged in an earthquake. The energy consumption capability of the node is provided by the friction force between the first spiral surface (13) of the rotating disc (12) and the second spiral surface (14) of the rotating outer disc (2) and the energy consumption angle steel (5), and the seismic energy can be effectively dissipated. The elasticity of the disc spring group (3) can effectively reduce the residual deformation of the node caused by the yielding of the energy consumption angle steel (5), so that the node has the advantage of easy resetting. The energy-consuming angle steel (5) is low in manufacturing cost and connected through bolts, and is convenient to replace after the earthquake is finished.
Compared with the prior art, the invention has the following advantages:
(1) the rotating disc and the rotating outer disc are jointed through the spiral surface and are fixedly connected through the high-strength bolt, and the disc spring group is arranged below the nut and the bolt head. When the structure receives earthquake horizontal load, the node uses high strength bolt to take place to rotate as rotation center, and both sides are rotated interval increase between the outer dish, and dish spring group compression increase, the elasticity of dish spring group will effectively reduce node residual deformation, makes the node have the advantage of easily restoreing.
(2) The node has integral energy consumption capacity comprising two parts of spiral friction energy consumption between the rotating disc and the rotating outer disc and plastic deformation energy consumption of the energy consumption angle steel weakening section, and has stronger energy consumption capacity compared with the node which only consumes energy through angle steel.
(3) According to the invention, the node has higher initial rigidity and better resetting capability by applying pretightening force to the high-strength bolt.
(4) According to the invention, the slotted holes are formed in the connecting plates of the rotating outer disks, the bolt holes are formed in the stiffening plates of the connecting beams, the bolts have shear resistance, and meanwhile, when the nodes rotate, the distance between the rotating outer disks on the two sides is increased, and the slotted holes cannot restrict the horizontal displacement of the rotating outer disks.
(5) The energy-consuming angle steel adopted by the node enhances the energy-consuming capability of the node, and effectively improves the strength, the rigidity and the shear resistance of the node.
(6) All components of the node are prefabricated in factories, are connected by adopting on-site bolts, do not need welding, are convenient to construct and install, and realize the characteristic of assembly.
(7) According to the invention, the node rotating beam and the connecting beam are provided with the arc-shaped webs with corresponding shapes, so that the rotating beam and the connecting beam are prevented from contacting and colliding to damage components when the node rotates.
(8) The energy-consuming angle steel is provided with the weakening section, the plastic area of the energy-consuming angle steel during deformation is artificially controlled, and the deformation capacity and the energy-consuming capacity of the energy-consuming angle steel are improved.
(9) After the node rotates, only the energy-consuming angle steel is subjected to yielding to enter a plastic stage, and other components are all in an elastic stage, so that the plastic hinge of the node is moved out of a node area, and important components such as steel beams, steel columns and the like are prevented from being damaged in an earthquake.
(10) The energy-consuming angle steel in the node is low in manufacturing cost and is connected by the bolts, so that the energy-consuming angle steel is convenient to replace after the earthquake is finished.
Drawings
FIG. 1 is a schematic view of a node assembly.
Fig. 2 is a schematic view of a turning beam.
Fig. 3 is a schematic view of the rotating outer disc.
Fig. 4 is a schematic diagram of energy-consuming angle iron.
Fig. 5 is a schematic view of a connection beam.
Fig. 6 is a schematic cross-sectional view a-a of fig. 1.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 6, an assembled easy-to-reset rotary energy consumption node is implemented as follows: the energy-saving steel column is characterized in that the energy-saving steel column is formed by prefabricating a rotating beam (1), an arc web plate (11), a rotating disc (12), a first spiral surface (13), a rotating outer disc (2), a slotted hole (16) and a second spiral surface (14) which are formed in the rotating outer disc (1), energy-consuming angle steel (5), a weakening section (17), a connecting beam (6), a stiffening plate (18), an arc web plate (19), an end plate (20), a steel beam (7), a steel column (8) and the like which are formed in advance in a factory and then transporting the steel column to a construction site.
Firstly, a steel column (8) is connected with a connecting beam (6) through an end plate (20) by bolts, and a rotating beam (1) is connected with a steel beam (7) through an end plate (10) by bolts. After the steel beam (7) and the steel column (8) are positioned, the outer rotating disks (2) on the two sides are in bolted connection with the stiffening plate (18) of the connecting beam (6) through the connecting plate (15), the second spiral surfaces (14) of the outer rotating disks (2) are attached to the first spiral surfaces (13) of the rotating disks (12), and then the disc spring groups (3) and the high-strength bolts (4) are installed. And the energy-consuming angle steel (5) is connected with the connecting beam (6) and the rotating beam (7) through bolts. And applying pretightening force to the high-strength bolt (4) to enable the compression amount of the disc spring group (3) to reach a design value.
Claims (9)
1. The utility model provides an energy consumption node is rotated in easy reseing of assembled which characterized in that: bolt holes are processed in end plates (20) of the connecting beams (6) and are used for being connected with the steel columns (8) through bolts; bolt holes are processed on the stiffening plates (18) of the connecting beams (6) and are used for being connected with the connecting plates (15) of the rotating outer discs (2) through bolts; the end part of a web plate (19) of the connecting beam (6) is processed into an arc shape; energy-consuming angle steels (5) are symmetrically arranged on two sides of the rotating beam (1) and the connecting beam (6) and are connected by bolts; the second spiral surface (14) on the rotating outer disc (2) corresponds to the first spiral surface (13) on the rotating disc (12) and is connected with the first spiral surface through a high-strength bolt (4), and the high-strength bolt (4) is provided with a nut and a bolt head which are symmetrically provided with disc spring groups (3).
2. The assembled easy-to-reset rotary energy consumption node as claimed in claim 1, wherein: the energy consumption angle steel (5) is provided with a weakening section (17) which controls the plastic area of the energy consumption angle steel (5) and increases the deformation capacity and the energy consumption capacity of the energy consumption angle steel (5).
3. The assembled easy-to-reset rotary energy consumption node as claimed in claim 1, wherein: the rotating beam (1) comprises a flange (9), an end plate (10) and a web plate (11), wherein a bolt hole is processed on the flange (9) and is used for being connected with an energy-consuming angle steel bolt; bolt holes are processed on an end plate (10) of the rotating beam (1) to ensure that the rotating beam (1) is connected with the steel beam (7) through bolts; bolt holes are processed in the positions, close to the flanges (9), of the web plates (11) of the rotating beams (1) and are used for being connected with energy-consuming angle steel (5) through bolts.
4. The assembled easy-to-reset rotary energy consumption node as claimed in claim 3, wherein: the end part of the web plate (11) of the rotating beam (1) is processed into an arc shape, and the shape of the end part corresponds to the shape of the arc-shaped web plate (19) of the connecting beam (6).
5. The assembled easy-to-reset rotary energy consumption node as claimed in claim 3, wherein: a rotating disc (12) is processed on a web plate (11) of the rotating beam (1), a first spiral surface (13) is processed on the rotating disc (12), and a bolt hole is processed at the circle center; a second spiral surface (14) is processed on the rotating outer disc (2), and a bolt hole is processed at the circle center; slotted holes (16) are processed on the connecting plates (15) of the rotating outer disc (2), so that the bolts do not restrict the horizontal displacement of the rotating outer disc (2) while shearing.
6. The assembled easy-to-reset rotary energy consumption node as claimed in claim 1, wherein: the two sides of the rotating beam (1) and the connecting beam (6) are symmetrically provided with the rotating outer discs (2), and the connecting plate (15) of the rotating outer discs (2) is connected with the stiffening plate (18) of the connecting beam (6) through bolts.
7. The assembled easy-to-reset rotary energy consumption node as claimed in claim 1, wherein: when an earthquake occurs, the structure is subjected to horizontal load, and the node rotates by taking the high-strength bolt (4) as a rotation center; because the rotating disc (12) and the rotating outer disc (2) are attached together through the first spiral surface (13) and the second spiral surface (14), the relative rotation between the rotating disc (12) and the rotating outer disc (2) can increase the distance between the rotating outer discs (2) at two sides, the compression amount of the disc spring group (3) is increased, friction force is generated between the first spiral surface (13) and the second spiral surface (14) to dissipate energy, and the elastic force of the disc spring group (3) provides the restoring force of a node; the energy consumption angle steel (5) deforms due to relative deformation between the connecting beam (6) and the rotating beam (1), and the weakening section (17) of the energy consumption angle steel (5) yields to enter a plastic stage so as to dissipate energy.
8. The assembled easy-to-reset rotary energy consumption node as claimed in claim 1, wherein: the energy consumption angle steel (5) enhances the energy consumption capability of the node, and effectively improves the rigidity, strength and shear resistance of the node; prestress is applied to the high-strength bolt (4), the disc spring group (3) is subjected to pre-compression, the rotating disc (12) and the rotating outer disc (2) are compressed, and the outer load needs to overcome the pre-compression of the disc spring group (3) to enable the node to rotate, so that the initial rotational rigidity of the node is effectively improved; meanwhile, the total compression amount of the disc spring set (3) after the node rotates is increased due to the pre-compression of the disc spring set (3), the restoring force provided by the disc spring set (3) is increased, and the resetting capacity of the node is enhanced.
9. The assembled easy-to-reset rotary energy consumption node as claimed in claim 1, wherein: all the components are prefabricated in factories, welding is not needed among the components, and the components are connected by adopting on-site bolts, so that construction and installation are convenient; after the node rotates, only the weakening section of the energy-consuming angle steel (5) is subjected to yielding to enter a plastic stage, and other components are in an elastic stage; the energy consumption capacity of the node is provided by the friction force between the first spiral surface (13) of the rotating disc (12) and the second spiral surface (14) of the rotating outer disc (2) and the energy consumption angle steel (5), and the seismic energy is dissipated; the elasticity of the disc spring group (3) reduces the node residual deformation caused by the yielding of the energy consumption angle steel (5); the energy-consuming angle steel (5) is low in manufacturing cost and is connected by bolts.
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| CN202110877686.2A CN113700363B (en) | 2021-08-01 | 2021-08-01 | Assembled easy-resetting rotary energy consumption node |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110877686.2A CN113700363B (en) | 2021-08-01 | 2021-08-01 | Assembled easy-resetting rotary energy consumption node |
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| CN113700363A true CN113700363A (en) | 2021-11-26 |
| CN113700363B CN113700363B (en) | 2023-04-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114482668A (en) * | 2022-03-28 | 2022-05-13 | 西安建筑科技大学 | Self-resetting rotary friction damper |
| CN114645584A (en) * | 2022-04-16 | 2022-06-21 | 北京工业大学 | Rotary friction self-resetting damper |
| CN114718206A (en) * | 2022-03-15 | 2022-07-08 | 大连交通大学 | Self-resetting beam column node with replaceable energy consumption device |
| CN114718205A (en) * | 2022-03-14 | 2022-07-08 | 大连交通大学 | Self-resetting support with amplification energy consumption mechanism |
| CN114790847A (en) * | 2022-04-21 | 2022-07-26 | 东南大学 | Rotary type variable friction self-resetting node |
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| CN113700363B (en) | 2023-04-28 |
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