CN113846765B - Self-resetting energy dissipation supporting device - Google Patents
Self-resetting energy dissipation supporting device Download PDFInfo
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- CN113846765B CN113846765B CN202111053473.4A CN202111053473A CN113846765B CN 113846765 B CN113846765 B CN 113846765B CN 202111053473 A CN202111053473 A CN 202111053473A CN 113846765 B CN113846765 B CN 113846765B
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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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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Abstract
The invention discloses a self-resetting energy dissipation supporting device which comprises a box body and a self-resetting energy dissipation assembly arranged in the box body; the right surface of the left side plate of the box body is provided with an inner side pipe, and the surface of the right side plate of the box body is provided with an outer side pipe; the self-resetting energy dissipation assembly comprises a cylinder, a first prestressed steel bar and a second prestressed steel bar; the left end plate and the right end plate are arranged at the left end and the right end of the cylinder body; the left end of the first prestressed reinforcement is anchored on the left side plate of the box body, the right end penetrates through the left end plate and is anchored on the right end plate, the right end of the second prestressed reinforcement is anchored on the right side plate of the box body, and the left end penetrates through the right end plate and is anchored on the left end plate; piezoelectric patches are arranged on the inner side faces of the left end plate and the right end plate, electromagnets are correspondingly arranged in the middle of the inner surface of the cylinder body up and down, the piezoelectric patches are connected with the electromagnets through wires, a mass block is arranged on a lead screw penetrating through the centers of the left end plate and the right end plate of the cylinder body, a plurality of through hole baffles are arranged on the left side and the right side of the mass block between the two electromagnets, disc springs are connected between the baffles and the piezoelectric patches, and magnetorheological fluid is arranged in the cylinder body.
Description
Technical Field
The invention relates to the field of steel structure energy dissipation and vibration reduction, in particular to a self-resetting energy dissipation supporting device.
Background
With the progress of society and the development of economy, steel structures have become the first choice of many high-rise buildings, urban stations, airport terminal buildings and the like, and the buildings are closely related to the life of people. The buckling restrained brace is generally used for steel structure buildings as an anti-seismic element, and can effectively reduce the influence of an earthquake on the buildings when the earthquake comes. However, the traditional buckling restrained brace has limited energy consumption capacity and supporting rigidity and has the defects of poor resetting capacity and the like.
Disclosure of Invention
The self-resetting energy-consuming bracing device can overcome the defects of limited energy-consuming capacity, bracing rigidity and poor resetting capacity of the traditional buckling restrained brace, enhances the energy-consuming performance of the traditional buckling restrained brace, increases the bracing rigidity and the self-resetting capacity, and improves the utilization rate of the device.
In order to realize the purpose, the following technical scheme is provided:
a self-resetting energy dissipation supporting device comprises a box body and a self-resetting energy dissipation assembly arranged in the box body;
the right surface of the left side plate of the box body is provided with an inner side pipe, the left surface of the right side plate of the box body is provided with an outer side pipe, and the outer side pipe is positioned outside the inner side pipe;
the self-resetting energy dissipation assembly comprises a cylinder, a first prestressed steel bar and a second prestressed steel bar; the left end plate and the right end plate are arranged at the left end and the right end of the cylinder body; the left end of the first prestressed reinforcement is anchored on the left side plate of the box body, the right end of the first prestressed reinforcement penetrates through the left end plate and is anchored on the right end plate, the right end of the second prestressed reinforcement is anchored on the right side plate of the box body, the left end of the second prestressed reinforcement penetrates through the right end plate and is anchored on the left end plate, and the first prestressed reinforcement and the second prestressed reinforcement are vertically staggered; piezoelectric patches are respectively arranged on the inner side surfaces of a left end plate and a right end plate of the barrel, electromagnets are respectively arranged in the middle of the inner surface of the barrel in a vertically corresponding manner, the piezoelectric patches are connected with the electromagnets through conducting wires, a lead screw penetrates through the centers of the left end plate and the right end plate of the barrel, a mass block is arranged on the lead screw in the barrel and is positioned between the two electromagnets, baffles provided with a plurality of through holes are arranged on the left side and the right side of the mass block, disc springs are connected between the baffles and the piezoelectric patches, and magnetorheological fluid is arranged in the barrel;
the left end of the lead screw is fixedly connected with the left side plate of the box body, and the right end of the lead screw penetrates out of the right side plate of the box body;
the side surface of the box body and the cylinder body are made of deformable materials.
Furthermore, a partition board is arranged in the box body, the partition board partitions the box body into an upper box body, inner cores penetrate through the left side plate and the right side plate of the upper box body, and non-viscous materials are filled in the upper box body.
Further, the cross section of the inner core is in a straight shape or a cross shape.
Further, a negative poisson's ratio material layer wraps the mass block.
Further, the material of the disc spring is memory alloy.
Further, the mass block is made of copper, aluminum or zinc.
Further, the deformable material is a rubber material.
Compared with the prior art, the invention has the beneficial effects that:
(1) The integration of the self-resetting energy dissipation assembly and the buckling restrained brace increases the energy dissipation performance of the whole device and simultaneously increases the brace rigidity of the device.
(2) The reset performance of the memory alloy disc spring is utilized, so that the device has stronger self-reset performance after an earthquake, and the utilization rate of the device is improved.
(3) The negative Poisson's ratio material and the organic whole formed by the device; making the negative Poisson ratio cells into a rotating rigid structure, periodically arranging and combining the cells, and connecting the cells through hinges; the energy consumption efficiency of the device is enhanced by utilizing the characteristic of high energy absorption of the deformation of the negative Poisson's ratio material, and the rotating rigid body structure has better strength and rigidity after the contraction is realized.
The defects that the traditional buckling restrained brace is poor in energy consumption capability, limited in support rigidity and poor in reset capability and the like are overcome. The self-resetting energy dissipation support device enhances the energy dissipation performance, increases the support rigidity and the self-resetting capability, and improves the utilization rate of the device.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a perspective view of one embodiment of a self-resetting energy dissipating brace apparatus of the present invention;
FIG. 2 is a front cross-sectional view of an embodiment of a self-resetting energy dissipating support device of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of one embodiment ofbase:Sub>A self-resetting dissipative support device of the invention;
FIG. 4 is a top view of the inner core of an embodiment of the self-resetting energy dissipating brace apparatus of the present invention;
fig. 5 is a schematic structural diagram of a mass and a negative poisson's ratio material layer of an embodiment of the self-resetting energy-consuming bracing apparatus of the invention.
In the above figures: 1, a box body; 2, a left side plate; 3, a right side plate; 4, an inner pipe; 5, an outer pipe; 6, a cylinder body; 7 first prestressed reinforcement; 8 second prestressed reinforcement; 9 a left end plate; 10 a right end plate; 11 an electromagnet; 12 leading screws; 13 a mass block; 14, a baffle plate; 15 disc springs; 16 magnetorheological fluid; 17 a partition plate; 18 an inner core; a layer of 19 negative poisson's ratio material; 20 non-stick material.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 to 5, a self-resetting energy dissipation brace includes a box body 1 and a self-resetting energy dissipation assembly installed in the box body 1; the right surface of the left side plate 2 of the box body 1 is provided with an inner side pipe 4, the left surface of the right side plate 3 of the box body 1 is provided with an outer side pipe 5, and the outer side pipe 5 is positioned outside the inner side pipe 4; the self-resetting energy dissipation assembly comprises a cylinder 6, a first prestressed reinforcement 7 and a second prestressed reinforcement 8; the left end plate 9 and the right end plate 10 are arranged at the left end and the right end of the cylinder 6; the left end of the first prestressed reinforcement 7 is anchored on the left side plate 2 of the box body 1, the right end of the first prestressed reinforcement 7 penetrates through the left end plate 9 and is anchored on the right end plate 10, the right end of the second prestressed reinforcement 8 is anchored on the right side plate 3 of the box body 1, the left end of the second prestressed reinforcement 8 penetrates through the right end plate 10 and is anchored on the left end plate 9, and the first prestressed reinforcement 7 and the second prestressed reinforcement 8 are vertically staggered; piezoelectric patches are respectively arranged on the inner side surfaces of a left end plate 9 and a right end plate 10 of a cylinder 6, electromagnets 11 are respectively arranged in the middle of the inner surface of the cylinder 6 in a vertically corresponding manner, the piezoelectric patches are connected with the electromagnets 11 through conducting wires, a screw 12 penetrates through the centers of the left end plate and the right end plate of the cylinder 6, a mass block 13 is arranged on the screw 12 in the cylinder 6, the mass block 13 is arranged between the two electromagnets 11, baffle plates 14 with a plurality of through holes are arranged on the left side and the right side of the mass block 13, disc springs 15 are connected between the baffle plates 14 and the piezoelectric patches, and magnetorheological fluid 16 is arranged in the cylinder 6; the left end of a screw 12 is fixedly connected with the left side plate 2, and the right end of the screw 12 penetrates out of the right side plate 3 of the box body 1; the side surface of the box body 1 and the cylinder body 6 are made of deformable materials. A partition plate 17 is arranged in the box body 1, the box body 1 is separated into an upper box body by the partition plate 17, inner cores 18 penetrate through the left side plate and the right side plate of the upper box body, and non-adhesive materials 20 are filled in the upper box body. The cross-section of the inner core 18 is a straight line or a cross. The mass 13 is surrounded by a layer of negative poisson's ratio material 19. The material of the disc spring 15 is memory alloy. The mass 13 is made of copper, aluminum or zinc. The deformable material is a rubber material.
In the embodiment, one end of a first prestressed reinforcement 7 penetrating through a left end plate 9 of a cylinder 6 of the self-resetting energy dissipation assembly is anchored on a left side plate 2 of a box body 1, the other end of the first prestressed reinforcement 7 is anchored on a right end plate 10 of the cylinder 6, one end of a second prestressed reinforcement 8 penetrating through a right end plate 10 of the cylinder 6 is anchored on the right side plate 2 of the box body 1, the other end of the second prestressed reinforcement 8 is anchored on the left end plate 9, piezoelectric plates are respectively arranged on the inner side surfaces of the left end plate 9 and the right end plate 10 of the cylinder 6, an electromagnet 11 is respectively arranged in the middle of the inner surface of the cylinder 6 in an up-and-down corresponding manner, the piezoelectric plates are connected with the electromagnets 11 through wires, a lead screw 12 penetrates through the centers of the left end plate and the right end plate of the cylinder 6, a mass block 13 is arranged on the lead screw 12 in the cylinder 6, the mass block 13 is arranged between the two electromagnets 11, baffle plates 14 with a plurality of through holes are arranged on the left and right sides of the mass block 13, a disc spring 15 is connected between the baffle 14 and the piezoelectric plate, and a disc spring 16 is arranged in the cylinder 6; the left end of a screw 12 is fixedly connected with the left side plate 2, and the right end of the screw 12 penetrates out of the right side plate 3 of the box body 1. The side surface of the box body 1 and the cylinder body 6 are made of deformable materials, and the deformable materials are made of rubber materials. When the left and right side plates of the box body 1 exert pulling force or pressure, the left and right end plates of the cylinder body 6 can move under the action of force, the left end plate 9 of the self-resetting energy dissipation assembly cylinder body 6 moves under the action of pulling force or pressure of the second prestressed reinforcement 8, and the right end plate 10 of the cylinder body 6 moves under the action of pulling force or pressure of the first prestressed reinforcement 7. The baffles 14 installed on the left and right sides of the mass 13 prevent the linear motion of the mass, and the mass 14 rotates. The memory alloy disc spring 15 between baffle 14 and the piezoelectric plate compresses, and the piezoelectric plate produces direct piezoelectric effect, and mechanical energy converts the electric energy into, and the electric current passes to electro-magnet 11, and according to the electromagnetic induction law, a pair of electro-magnet 11 magnetizes under the influence of circular telegram coil and produces magnetic field, and the rotatory in-process of quality piece 13 constantly cuts magnetic induction line, converts kinetic energy into the electric energy. Meanwhile, under the influence of the magnetic field, the magnetorheological fluid 16 generates a magnetorheological effect, the viscosity is increased, the temperature is increased, and the magnetorheological fluid 16 flows into the space between the baffles through the holes on the baffles to consume energy.
A partition plate 17 is arranged in the box body 1, the box body 1 is separated into an upper box body by the partition plate 17, inner cores 18 penetrate through the left side plate and the right side plate of the upper box body, and non-adhesive materials 20 are filled in the upper box body. The cross-section of the inner core 18 is a straight or cross-shaped cross-section. The inner core 18, the side wall of the upper box body and the non-viscous material 20 in the upper box body form a buckling restrained brace, the section of the inner core 18 is in a shape like a straight line or a cross, the inner core 18 is a main stress element, the side wall of the upper box body is a restraining element, the non-viscous material 20 is a sliding element, when the left side plate and the right side plate of the box body 1 exert pulling force or pressure, the inner core 18 is stressed to be buckled, and the side wall of the upper box body and the non-viscous material 20 restrain the stressed buckling of the inner core 18 to consume energy. The side face of the box body 1 and the barrel body 6 are made of deformable materials, and the deformable materials are made of rubber materials, so that the free stretching or shortening of the two ends of the device can be guaranteed when the two ends of the device are stressed. The self-resetting energy dissipation assembly and the buckling restrained brace are integrated, so that the energy dissipation performance and the brace rigidity of the whole device are improved.
The mass block 13 is wrapped by a negative poisson ratio material layer 19, the negative poisson ratio material layer 19 is composed of a plurality of negative poisson ratio cells in a rotating cube structure, the negative poisson ratio cells are arranged periodically with a certain gap, and each negative poisson ratio cell is connected through a hinge. The negative Poisson ratio cell elements are made into a rotary rigid structure and are periodically arranged and combined, the cell elements are connected through hinges, the energy consumption efficiency of the device is enhanced by utilizing the characteristic of high energy absorption of deformation of the negative Poisson ratio material, and the rotary rigid structure has better strength and rigidity after being contracted.
The material of the disc spring 15 is memory alloy, and the memory alloy disc spring 15 is affected by temperature, generates temperature memory effect and consumes energy.
The material of the mass 13 may be copper, aluminum or zinc
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields directly/indirectly applied to the present invention are included in the scope of the present invention.
Claims (6)
1. The self-resetting energy dissipation supporting device is characterized by comprising a box body (1) and a self-resetting energy dissipation assembly arranged in the box body (1);
an inner side pipe (4) is arranged on the right surface of the left side plate (2) of the box body (1), an outer side pipe (5) is arranged on the left surface of the right side plate (3) of the box body (1), and the outer side pipe (5) is positioned outside the inner side pipe (4);
the self-resetting energy dissipation assembly comprises a cylinder body (6), a first prestressed steel bar (7) and a second prestressed steel bar (8); the left end plate (9) and the right end plate (10) are arranged at the left end and the right end of the cylinder body (6); the left end of the first prestressed reinforcement (7) is anchored on the left side plate (2) of the box body (1), the right end of the first prestressed reinforcement (7) penetrates through the left end plate (9) and is anchored on the right end plate (10), the right end of the second prestressed reinforcement (8) is anchored on the right side plate (3) of the box body (1), the left end of the second prestressed reinforcement (8) penetrates through the right end plate (10) and is anchored on the left end plate (9), and the first prestressed reinforcement (7) and the second prestressed reinforcement (8) are vertically staggered; piezoelectric patches are respectively arranged on the inner side surfaces of a left end plate (9) and a right end plate (10) of the cylinder body (6), electromagnets (11) are respectively arranged in the middle of the inner surface of the cylinder body (6) in an up-down corresponding mode, the piezoelectric patches are connected with the electromagnets (11) through leads, a lead screw (12) penetrates through the center of the left end plate and the center of the right end plate of the cylinder body (6), a mass block (13) is arranged on the lead screw (12) in the cylinder body (6), the mass block (13) is located between the two electromagnets (11), baffle plates (14) with a plurality of through holes are installed on the left side and the right side of the mass block (13), a reed disc (15) is connected between the baffle plates (14) and the piezoelectric patches, and magnetorheological fluid (16) is arranged in the cylinder body (6);
the left end of the lead screw (12) is fixedly connected with the left side plate (2) of the box body (1), and the right end of the lead screw (12) penetrates out of the right side plate (3) of the box body (1);
the side surface of the box body (1) and the cylinder body (6) are made of deformable materials;
and a negative poisson ratio material layer (19) wraps around the mass block (13).
2. The self-resetting energy-consuming support device according to claim 1, wherein a partition plate (17) is arranged in the box body (1), the partition plate (17) partitions the box body (1) into an upper box body, inner cores (18) penetrate through left and right side plates of the upper box body, and the upper box body is filled with non-adhesive materials (20).
3. Self-resetting energy-consuming bracing device according to claim 2, characterized in that the cross-section of the inner core (18) is in-line or cross-shaped.
4. Self-resetting dissipative support device according to claim 1, characterized in that the material of the disc spring (15) is a memory alloy.
5. The self-resetting dissipative support device according to claim 1, wherein the mass (13) is made of copper, aluminum or zinc.
6. The self-resetting energy dissipating support device of claim 1, wherein the deformable material is a rubber material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111053473.4A CN113846765B (en) | 2021-09-09 | 2021-09-09 | Self-resetting energy dissipation supporting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111053473.4A CN113846765B (en) | 2021-09-09 | 2021-09-09 | Self-resetting energy dissipation supporting device |
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| CN113846765A CN113846765A (en) | 2021-12-28 |
| CN113846765B true CN113846765B (en) | 2023-01-17 |
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| CN115538639A (en) * | 2022-10-27 | 2022-12-30 | 东北林业大学 | Novel self-resetting buckling-restrained brace and assembling method |
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