CN212689209U - Recoverable magnetorheological damper energy dissipation concrete frame structure - Google Patents
Recoverable magnetorheological damper energy dissipation concrete frame structure Download PDFInfo
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- CN212689209U CN212689209U CN202021044834.XU CN202021044834U CN212689209U CN 212689209 U CN212689209 U CN 212689209U CN 202021044834 U CN202021044834 U CN 202021044834U CN 212689209 U CN212689209 U CN 212689209U
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Abstract
The utility model relates to a building structure antidetonation technical field, in particular to recoverable magnetic current becomes attenuator power consumption concrete frame structure contains: the magnetorheological damper is used for changing the strength of output damping force by adjusting the current. The utility model discloses simple structure, modern design, scientific and reasonable through the damping force of adjusting the electric current size control output and combine together it with mixed arrangement of reinforcement concrete frame structure, can improve frame construction's restorability and power consumption ability, and arrange and to change at any time after the magneto rheological damper of frame inner space damages, use and maintain convenient, reliable, have stronger popularization and application and worth.
Description
Technical Field
The utility model relates to a building structure antidetonation technical field, in particular to recoverable magnetic current becomes attenuator power consumption concrete frame structure.
Background
Earthquake is one of the most serious natural disasters faced by human beings, the current design concept of China is that the ductility requirement is met and earthquake energy is dissipated through the plastic deformation of main components or nodes, although a building structure meets the requirement of seismic fortification of 'falling into a great earthquake', the plastic deformation of a main body structure of a building is larger after the earthquake, the repairing difficulty is large, the cost is high, even the repairing cannot be carried out, and great economic loss is brought to the reconstruction after the disaster.
Disclosure of Invention
Therefore, the utility model provides a recoverable magnetic current becomes attenuator power consumption concrete frame structure, simple structure, design science, reasonable through the damping force of adjusting the output of electric current size control and combine together it with mixed arrangement of reinforcement concrete frame structure, can improve frame structure's recoverable ability and power consumption ability, and arrange and can change at any time after the magnetic current becomes attenuator of frame inner space damages, use and maintain convenient, reliable.
According to the utility model provides a design, a recoverable magnetic current becomes attenuator power consumption concrete frame structure contains: the magnetorheological damper is used for changing the strength of output damping force by adjusting the current.
As the utility model discloses recoverable magnetic current becomes attenuator power consumption concrete frame structure, further, be provided with two connecting pieces that are used for fixed magnetic current to become attenuator on one of them diagonal line of frame construction inner space.
As the utility model discloses recoverable magnetic current becomes attenuator power consumption concrete frame structure, furtherly, the connecting piece contain with the diagonal on built-in fitting welded fastening's connecting plate, with the fixed steel member of connecting plate, and with steel member bolted connection's girder steel.
As the utility model discloses recoverable magnetic current becomes attenuator power consumption concrete frame structure, furtherly, be provided with on the connecting piece and be used for the test to bear pulling force and pressure data and with the force transducer of magnetic current becomes attenuator controller signal connection.
As the utility model discloses recoverable magnetic current becomes attenuator power consumption concrete frame structure, furtherly, mixed arrangement of reinforcement adopts the structure of being prepared by reinforcing bar and FRP muscle mixture.
The utility model has the advantages that:
the utility model improves the restorability of the concrete frame through the mixed reinforcement, reduces the residual deformation after the earthquake, can ensure that the building does not incline greatly after the earthquake, has higher bearing capacity, ensures that the building can be used continuously after the earthquake, and is easy to repair; meanwhile, the magnetorheological damper is arranged in the frame structure, so that the energy in the earthquake can be well consumed, and the bearing capacity of the concrete frame structure can be improved; in addition, if the magneto-rheological damper is damaged after strong shock, the magneto-rheological damper can be conveniently and quickly taken out from the frame structure for replacement, the shock resistance of the main structure of the building is effectively ensured, and the magneto-rheological damper has high popularization and application values.
Description of the drawings:
FIG. 1 is a schematic structural diagram of an anti-seismic frame in an embodiment;
FIG. 2 is a schematic view of an exemplary frame post;
fig. 3 is a schematic diagram of a connecting piece in the embodiment.
In the drawing, reference numeral 1 denotes a foundation beam, reference numeral 2 denotes a top beam, reference numeral 3 denotes a left frame column, reference numeral 4 denotes a right frame column, reference numeral 5 denotes an embedded part, reference numerals 6 and 7 denote connecting members, reference numeral 71 denotes a connecting plate, reference numeral 72 denotes a steel member, reference numeral 73 denotes a steel beam, reference numeral 8 denotes a force sensor, reference numeral 9 denotes a magnetorheological damper, reference numeral 10 denotes an anchoring steel plate, reference numeral 11 denotes an FRP rib, reference numeral 12 denotes a corner reinforcing steel bar, reference numeral 13 denotes a high-strength bolt, reference numeral 14 denotes a piston rod, and reference numeral 15 denotes a fixing rod.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and technical solutions, and embodiments of the present invention will be described in detail by way of preferred examples, but the embodiments of the present invention are not limited thereto.
The embodiment of the utility model provides a, it is shown with reference to fig. 1, provide a recoverable magnetorheological damper power consumption concrete frame structure, contain: the magnetorheological damper is used for changing the strength of output damping force by adjusting the current. The restorability of the concrete frame is improved through the mixed reinforcing bars, the residual deformation after the earthquake is reduced, the building can be prevented from being inclined greatly after the earthquake, the bearing capacity is higher, the building can be used continuously after the earthquake, and the building is easy to repair; the concrete frame structure adopting the CFRP (carbon fiber reinforced plastic) bar and the steel bar mixed reinforcement is a novel anti-seismic structure, the high tensile strength and good linear elasticity of a high-strength steel bar (FRP) are utilized to reduce the residual deformation of the concrete structure so as to improve the restorability of the structure, and meanwhile, the plastic deformation of the ordinary steel bar after yielding is utilized to provide certain ductility and energy consumption capability for the structure. The energy consumption capability is still low, the magnetorheological damper can control the output damping force by adjusting the current and is combined with the high-strength rib-reinforced concrete frame structure, the shock resistance and the damage control capability of the frame structure are improved, the energy in the earthquake can be well consumed, and the bearing capacity of the concrete frame structure can be improved.
As the embodiment of the utility model provides an in recoverable magnetic current becomes attenuator power consumption concrete frame structure, further, be provided with two connecting pieces that are used for fixed magnetic current to become attenuator on one of them diagonal line of frame construction inner space. Referring to fig. 1, the magnetorheological damper is arranged between the upper connecting piece and the lower connecting piece, and the magnetorheological damper is detachably connected with the frame structure through the connecting pieces, so that the magnetorheological damper is convenient to replace and maintain in the using process, stable in performance and more convenient and reliable to use.
As the embodiment of the utility model provides an in recoverable magnetorheological damper power consumption concrete frame structure, further, the connecting piece contain with the diagonal on built-in fitting welded fastening's connecting plate, with the fixed steel member of connecting plate, and with steel member bolted connection's girder steel. Furthermore, a force sensor which is used for testing the data of the bearing tension and the pressure and is in signal connection with the magnetorheological damper controller is arranged on the connecting piece. Stiffening ribs can be added in the steel beam to enhance the strength and rigidity of the connecting piece. Referring to fig. 3, the slotted steel connecting plate and the steel member can be welded in a fixed position, the steel beam is fixed with the steel member through the high-strength bolt, and the force sensor is used for acquiring tension and pressure data borne by the frame structure, so that the resistance of the magnetorheological damper can be adjusted through the damper controller, and the adaptability of the concrete frame structure in bearing is improved.
As the embodiment of the utility model provides an in recoverable magnetorheological damper power consumption concrete frame structure, further, mix the structure that the arrangement of reinforcement adopted and is mixed the preparation by reinforcing bar and FRP muscle. The high tensile strength and good linear elasticity of the high-strength steel bar (FRP) are utilized to reduce the residual deformation of the concrete structure so as to improve the restorability of the structure, and meanwhile, the plastic deformation of the ordinary steel bar after yielding is utilized to provide certain ductility and energy consumption capability for the structure.
The utility model discloses in, refer to fig. 1~3 and show, including foundation beam 1, be equipped with mixed reinforced concrete frame construction on foundation beam 1, including top frame roof beam 2, left side frame post 3 and right side frame post 4. Concrete positions of mixed reinforcement are located in a left frame column 3 and a right frame column 4, the left frame column 3 and the right frame column 4 are both provided with CFRP reinforcements 11, the left frame column 3 and the right frame column 4 are simultaneously provided with vertical reinforcements 12 and stirrups, a top frame beam 2 is provided with the reinforcements and the stirrups, after all reinforcements are bound, a stud embedded part 5 is fixed at the corner inside the frame structure in advance, then concrete is poured, and after the concrete pouring is finished, one side of the plane of the stud embedded part 5 is flush with the surface of the concrete. The FRP ribs 11 are inserted into the steel pipes of the anchoring steel plates 10, and high-strength grouting materials are poured into the steel pipes, so that the FRP ribs 11 and the anchoring steel plates 10 form a whole, and corner reinforcing steel bars 12 are arranged around the FRP ribs 11 to form a framework. The FRP bars 11 and the corner reinforcing bars 12 can improve the bearing capacity and restorability of the concrete frame structure. The upper connecting piece 6 and the lower connecting piece 7 are respectively welded with the stud embedded part 5. A piston rod 14 of the magnetorheological damper 9 is connected with the upper connecting piece 6 through a high-strength bolt 13, and a fixed rod 15 is connected with the lower connecting piece 7 through the high-strength bolt 13. After the magneto-rheological damper 9 is installed, the magneto-rheological damper is connected with an external controller through a wire. The piston rod 14 of the magnetorheological damper 9 can reciprocate along the axial direction, resistance is generated on the piston rod 14 by the interior of the magnetorheological damper 9, and further energy input from the outside can be consumed, and the external controller can control the resistance by adjusting the current. The force sensor 8 is connected with an external controller through a lead.
The working principle is as follows: in the earthquake, the concrete frame structure deforms, the frame column 3 and the magnetorheological damper 9 relatively displace, the stud embedded part 5 and the upper connecting part 6 drive the piston rod 14 to move, and the magnetorheological damper 9 generates resistance to the concrete frame structure and consumes energy transferred to the concrete frame by the earthquake. When the external load is zero, the force sensor transmits the load information to the external controller, the external controller cuts off the power of the magnetorheological damper 9, the resistance disappears, and the frame structure generates deformation recovery under the restoring force effect of the FRP ribs. In addition, after the upper connecting piece 6, the magnetorheological damper 9 and the lower connecting piece 7 are integrated, part of bending moment generated by the frame column can be transmitted to the foundation beam 1, the bending moment borne by the top frame beam 2 is reduced, and the bearing capacity of the concrete frame structure is improved.
The term "and/or" herein means that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Exemplary embodiments of the present invention have been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various changes and modifications may be made to the specific embodiments described above and various combinations of the technical features and structures proposed by the present invention may be made without departing from the concept of the present invention, and the scope of the present invention is defined by the appended claims. The foregoing description of specific exemplary embodiments of the invention is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (5)
1. A recoverable magnetorheological damper energy-dissipating concrete frame structure is characterized by comprising: the frame structure is formed by mixing reinforcement and pouring concrete and comprises a foundation beam, a top beam, a left frame column and a right frame column; and a magnetorheological damper for changing the strength of the output damping force by adjusting the current is arranged on one diagonal line of the internal space of the frame structure.
2. The recoverable magnetorheological damper energy dissipating concrete frame structure according to claim 1, wherein two connectors for fixing the magnetorheological damper are arranged on a diagonal line in the internal space of the frame structure.
3. The recoverable magnetorheological damper energy dissipating concrete frame structure according to claim 2, wherein the connecting members comprise connecting plates welded to diagonal embedments, steel members fixed to the connecting plates, and steel beams bolted to the steel members.
4. The recoverable magnetorheological damper energy-dissipating concrete frame structure according to claim 2, wherein the connecting piece is provided with a force sensor for testing load-bearing tension and pressure data and in signal connection with the magnetorheological damper controller.
5. The recoverable magnetorheological damper energy dissipating concrete frame structure according to claim 1, wherein the hybrid reinforcement is a structure prepared by mixing reinforcing steel bars and FRP ribs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021044834.XU CN212689209U (en) | 2020-06-09 | 2020-06-09 | Recoverable magnetorheological damper energy dissipation concrete frame structure |
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| CN202021044834.XU CN212689209U (en) | 2020-06-09 | 2020-06-09 | Recoverable magnetorheological damper energy dissipation concrete frame structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809691A (en) * | 2022-03-16 | 2022-07-29 | 东南大学 | Hidden type wood beam column joint reinforcing device and reinforcing method thereof |
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2020
- 2020-06-09 CN CN202021044834.XU patent/CN212689209U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114809691A (en) * | 2022-03-16 | 2022-07-29 | 东南大学 | Hidden type wood beam column joint reinforcing device and reinforcing method thereof |
| CN114809691B (en) * | 2022-03-16 | 2023-10-03 | 东南大学 | Hidden wood beam column node reinforcing device and reinforcing method thereof |
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