CN113944360A - Multi-stage self-resetting support member and assembling method thereof - Google Patents
Multi-stage self-resetting support member and assembling method thereof Download PDFInfo
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- CN113944360A CN113944360A CN202111347044.8A CN202111347044A CN113944360A CN 113944360 A CN113944360 A CN 113944360A CN 202111347044 A CN202111347044 A CN 202111347044A CN 113944360 A CN113944360 A CN 113944360A
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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
- E04H9/0237—Structural braces with damping devices
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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
Abstract
The invention discloses a multi-stage self-resetting support member and an assembling method thereof, wherein the multi-stage self-resetting support member comprises a cover plate, a force guide rod, a first prestressed tendon group, a second prestressed tendon group, a first end plate, a first energy consumption assembly, a disc spring assembly, a second energy consumption assembly and a second end plate, wherein the first end plate, the first energy consumption assembly, the disc spring assembly, the second energy consumption assembly and the second end plate are sequentially arranged on the cover plate; the first prestressed tendon group is connected between the first end plate and the first energy dissipation assembly, and the second prestressed tendon group is connected between the second end plate and the second energy dissipation assembly; one end of the force guide rod is fixedly connected with the second energy dissipation assembly, and the other end of the force guide rod is fixedly connected to the outside. This application is divided into little deformation stage and the big deformation stage of second stage through the power consumption stage with the supporting component, and provides the restoring force for big deformation stage by prestressing tendons group and pressurized power consumption dish spring, and the second stage provides the restoring force through prestressing tendons and pressurized power consumption dish spring, improves its deformation recovery ability from this, avoids showing the deformation, prevents that the main structure is impaired.
Description
Technical Field
The invention relates to the field of structural engineering, in particular to a multi-stage self-resetting support member and an assembling method thereof.
Background
Measures such as improving strength and ductility, optimizing a force transmission path and improving structural integrity are generally adopted in a traditional building structure to improve the overall anti-seismic performance of the structure, and structures such as a damper and a support can share main seismic energy consumption through reasonable design and arrangement, so that the seismic damage to a main structure body is reduced, the normal operation of the use function of the structure is ensured, and energy consumption reinforcement measures can be rapidly repaired and replaced after a disaster.
The traditional support system has the problems of overlarge pollution, long construction period, unreasonable material utilization, higher requirements on a construction process and the like in the installation process, and can generate obvious residual deformation after an earthquake, so that a main body structure is damaged and even collapses.
Scholars at home and abroad propose to arrange a self-resetting energy-consuming support member in an engineering structure to eliminate the hidden danger of the traditional support system on the structural safety and the use after earthquake, but the current research mostly adopts a resetting prestress technology, and because the deformation capacity of a prestressed tendon is limited, the fracture risk exists, and the application and maintenance of prestress are greatly influenced by external factors, the requirement of the engineering structure on the self-resetting and energy-consuming capacity of the support cannot be met by a single prestress technology; because the energy consumption capability and the self-resetting capability are in a pair of dynamic balance relationship, the two capabilities are difficult to be considered simultaneously; buckling instability easily occurs when the current support is pressed, and under the action of multiple earthquakes, the performance of the current support is possibly greatly deviated from the initial design performance.
Therefore, it is desirable to provide a multi-stage self-resetting bracing member and an assembling method thereof to solve the above-mentioned problems.
Disclosure of Invention
The invention mainly aims to provide a multi-stage self-resetting support member and an assembling method thereof, and aims to solve the problems that a traditional support structure is obviously deformed, the supporting energy consumption effect is poor, and further a main structure is easily damaged.
In order to achieve the purpose, the multi-stage self-resetting support member provided by the invention comprises a cover plate, a force guide rod, a first prestressed tendon group, a second prestressed tendon group, a first end plate, a first energy dissipation assembly, a disc spring assembly, a second energy dissipation assembly and a second end plate, wherein the first end plate, the first energy dissipation assembly, the second energy dissipation assembly and the second end plate are sequentially arranged on the cover plate; the first prestressed tendon group is connected between the first end plate and the first energy dissipation assembly, the second prestressed tendon group is connected between the second end plate and the second energy dissipation assembly, and the disc spring assembly is connected between the first energy dissipation assembly and the second energy dissipation assembly; the force guide rod sequentially penetrates through the first end plate and the first energy dissipation assembly, the force guide rod is connected with the first end plate in a sliding mode, the force guide rod is fixedly connected with the first energy dissipation assembly, one end of the force guide rod is fixedly connected with the second energy dissipation assembly, and the other end of the force guide rod is fixedly connected to the outside.
Optionally, the first energy dissipation assembly comprises a base plate and a sliding friction plate, the base plate is fixedly connected with the force guide rod, a through hole is formed in the base plate, and the first prestressed tendon group penetrates through the through hole; the end part of the first prestressed tendon group is connected with the sliding friction plate, and the sliding friction plate is connected with the cover plate through a bolt and can slide in a friction mode relative to the cover plate; the first energy dissipation assembly and the second energy dissipation assembly are consistent in structure and are symmetrically arranged.
Optionally, the sliding friction plate comprises a first folded plate, a connecting portion and a second folded plate which are connected in sequence, the first folded plate is connected with the first prestressed rib group, a strip-shaped groove is formed in the connecting portion, the bolt penetrates through the strip-shaped groove and is connected with the cover plate, and the second folded plate is connected with the disc spring assembly in a sliding mode.
Optionally, the disc spring assembly includes a screw rod and a plurality of compressed energy consuming disc springs serially connected to the screw rod, and the screw rod is slidably connected to the second folding plate.
Optionally, two ends of the screw rod are provided with anchoring portions, the anchoring portions are located between the first folded plate and the second folded plate of the corresponding sliding friction plate, and a gap exists between the anchoring portions and the second folded plate.
Optionally, the number of the cover plates is two, the two cover plates are arranged at intervals, and the first prestressed tendon group, the first energy dissipation assembly, the disc spring assembly, the second energy dissipation assembly and the second prestressed tendon group are all arranged between the two cover plates.
Optionally, the multi-stage self-resetting bracing member further comprises a reinforcing plate connected between the two cover plates.
Optionally, the reinforcing plate is a U-shaped plate.
The invention also provides an assembling method of the multi-stage self-resetting supporting member, which comprises the following steps:
acquiring a first cover plate, a second cover plate, a force guide rod, a first prestressed tendon group, a second prestressed tendon group, a first end plate, a first energy consumption assembly, a disc spring assembly, a second energy consumption assembly and a second end plate;
rectangular holes are formed in the first end plate and the first energy consumption assembly;
combining the first cover plate, the second cover plate, the first end plate and the second end plate to form a rectangular frame;
the force guide rod penetrates through the first end plate and the first energy dissipation assembly, the force guide rod and the first energy dissipation assembly are welded, and the end part of the force guide rod and the second energy dissipation assembly are welded;
connecting a first group of prestressed tendon groups between a first end plate and a first energy dissipation assembly; connecting the second prestressed tendon group between the second energy dissipation assembly and the second end plate;
and two ends of the disc spring assembly are respectively connected with the first energy dissipation assembly and the second energy dissipation assembly in a sliding manner, so that a secondary friction energy dissipation self-resetting device provided with prestressed ribs and a compression energy dissipation disc spring is formed.
According to the technical scheme, when the multi-stage self-resetting support member is stressed, the force guide rod is displaced, and the support structure can be divided into two energy consumption stages according to the displacement distance of the force guide rod. In the first stage (small deformation stage), the second energy dissipation assembly slides relative to the cover plate to dissipate energy, meanwhile, the second prestressed tendon group moves rightwards to be pulled, and the disc spring assembly is not activated. In the second stage (large deformation stage), the second energy dissipation assembly continuously slides relative to the cover plate to dissipate energy, the second prestressed tendon group moves rightwards to be pulled, and the disc spring assembly is activated. The first stage provides restoring force through the prestressed rib group, the second stage provides restoring force through the prestressed rib and the compressed energy dissipation disc spring, when the compressed energy dissipation disc spring is compressed, the inner ring surface and the outer ring surface are in contact, and when the compressed energy dissipation disc spring generates compression deformation, the energy dissipation compressed energy dissipation disc spring performs friction energy dissipation, the energy dissipation capacity of the energy dissipation compressed energy dissipation disc spring group is stable, plastic deformation is not generated, and the disc spring does not need to be replaced after repeated earthquake, so that the disc spring has excellent earthquake-resistant recoverability. The prestress rib group and the energy consumption compression energy consumption disc spring group component with self-resetting and energy consumption capabilities are combined to realize a staged energy consumption technology, the problem of the defects of the existing energy consumption support can be overcome, the two-stage support has good self-resetting capability, the deformation recovery capability is improved, the obvious deformation is avoided, and the damage of a main structure is prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or 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 schematic structural view of a multi-stage self-resetting bracing member from a perspective in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a multi-stage self-resetting bracing member from another perspective in accordance with an embodiment of the present invention;
FIG. 3 is a schematic illustration of a multi-stage self-resetting bracing member in an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a disc spring assembly according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a multi-stage self-resetting bracing member in a first state according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a multi-stage self-resetting bracing member in a second state according to an embodiment of the invention.
The reference numbers illustrate: 101. a cover plate; 201. a first end plate; 202. a second end plate; 301. a reinforcing plate; 410. a force guide rod; 420. a first energy dissipating assembly; 430. a second energy consuming component; 421. a base plate; 422. a sliding friction plate; 423. a strip-shaped groove; 5. a first tendon group; 6. a second tendon group; 7. a disc spring assembly; 701. a screw; 702. an anchoring part; 703. the energy dissipation dish spring is pressed.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 4, in an embodiment of the present invention, the multi-stage self-resetting bracing member includes a cover plate 101, a force-guiding rod 410, a first tendon group 5, a second tendon group 6, and a first end plate 201, a first energy-consuming component 420, a disc spring component 7, a second energy-consuming component 430, and a second end plate 202 sequentially disposed on the cover plate 101, wherein the first energy-consuming component 420 and the second energy-consuming component 430 can frictionally slide relative to the cover plate 101; the first tendon group 5 is connected between the first end plate 201 and the first energy dissipation assembly 420, the second tendon group 6 is connected between the second end plate 202 and the second energy dissipation assembly 430, and the disc spring assembly 7 is connected between the first energy dissipation assembly 420 and the second energy dissipation assembly 430; the force guide rod 410 sequentially penetrates through the first end plate 201 and the first energy consumption assembly 420, the force guide rod 410 is connected with the first end plate 201 in a sliding mode, the force guide rod 410 is fixedly connected with the first energy consumption assembly 420, one end of the force guide rod 410 is fixedly connected with the second energy consumption assembly 430, and the other end of the force guide rod is fixedly connected to the outside.
In the above embodiment, when the multi-stage self-resetting support member is stressed, the force guide rod 410 is displaced, and the support structure can be divided into two energy consumption stages according to the displacement distance of the force guide rod 410. In the first stage (small deformation stage), the second energy dissipation assembly 430 generates sliding energy dissipation relative to the cover plate 101, and meanwhile, the second tendon group 6 moves to the right and is pulled, and the disc spring assembly 7 is not activated. In the second stage (large deformation stage), the second energy dissipation assembly 430 continues to slide and dissipate energy relative to the cover plate 101, the second tendon group 6 moves to the right and is pulled, and the disc spring assembly 7 is activated. The first stage provides restoring force through the prestressed tendon group, and the second stage provides restoring force through the prestressed tendon and the compressed energy-consuming disc spring 703, so that the two-stage support has better self-resetting capability, thereby improving the deformation restoring capability, avoiding significant deformation and preventing the damage of the main structure.
Specifically, the first energy dissipation assembly 420 includes a backing plate 421 and a sliding friction plate 422, the backing plate 421 is fixedly connected to the force guide rod 410, the backing plate 421 is provided with a through hole, and the first tendon group passes through the through hole; the end part of the first prestressed tendon group 5 is connected with a sliding friction plate 422, and the sliding friction plate 422 is connected with the cover plate 101 through bolts and can slide in a friction manner relative to the cover plate 101; the first energy dissipation assembly 420 and the second energy dissipation assembly 430 are identical in structure and are symmetrically arranged. The second dissipative assembly 430 also includes a backing plate 421 and a sliding friction plate 422, and the backing plate 421 and the sliding friction plate 422 in the second dissipative assembly 430 are symmetrically arranged with respect to the backing plate 421 and the sliding friction plate 422 in the first dissipative assembly 420. That is, when the force guiding rod 410 moves to the right, in the second dissipative element 430, the force guiding rod 410 pulls the backing plate 421 to move to the right, the backing plate 421 pushes the sliding friction plate 422 to move to the right, so that slippage dissipation occurs between the sliding friction plate 422 and the cover plate 101, and the second prestressing group is pulled up. When the force guide rod 410 moves to the right, in the first dissipative member 420, the force guide rod 410 pulls the backing plate 421 to the right, and the backing plate 421 is separated from the sliding friction plate 422 due to friction between the sliding friction plate 422 and the cover plate 101.
Further, the sliding friction plate 422 comprises a first folded plate, a connecting portion and a second folded plate which are connected in sequence, the first folded plate is connected with the first prestressed rib group 5, a strip-shaped groove 423 is formed in the connecting portion, a bolt penetrates through the strip-shaped groove 423 to be connected with the cover plate 101, and the second folded plate is connected with the disc spring assembly 7 in a sliding mode. The connecting part provided with the strip-shaped groove 423 is connected with the cover plate 101 through a bolt, and pretightening force is applied to the bolt, so that certain friction force exists between the connecting plate and the cover plate 101 in the stress process.
The disc spring assembly 7 comprises a screw 701 and a plurality of compressed energy consumption disc springs 703 serially connected to the screw 701, and the screw 701 is slidably connected to the second folding plate. The recovery capability is ensured by arranging a plurality of compressed energy consumption disc springs 703. The screw 701 is provided with anchoring portions 702 at both ends thereof, the anchoring portions 702 are located between the first flap and the second flap of the corresponding sliding friction plate 422, and a gap is formed between the anchoring portions 702 and the second flap. The force-bearing rod moves rightwards, the backing plate 421 and the sliding friction plate 422 of the second energy-consuming assembly 430 both move rightwards, and the sliding friction plate 422 moves rightwards for a certain distance to press the compressed energy-consuming disc spring 703 due to the gap between the anchoring part 702 and the second folding plate. I.e. in the first phase, the disc spring assembly 7 is not activated due to the gap between the anchor 702 and the second flap.
In the above embodiment, since the deformation mode and mechanism are the same when the multi-stage self-resetting bracing member is pulled or pressed (the force rods 410 move to the right or left), in order to reduce the description workload, the following description will take the example of the pulling (the force rods 410 move to the right). In the first stage (when the force guiding rod 410 moves a small amount), the force guiding rod 410 drives the first energy consuming component 420 and the second energy consuming component 430 to move to the left,
first stage (small deformation stage): the force guide rod 410 drives the connecting plate with the strip-shaped groove 423 to slide relative to the cover plate 101 to consume energy, meanwhile, the second prestressed tendon group 6 moves rightwards and is pulled, and the first prestressed tendon group 5 keeps unchanged and does not participate in stress because a certain friction force exists between the connecting plate with the strip-shaped groove 423 and the cover plate 101; the gap between the web plate, which is slotted with the strip groove 423, and the disc spring assembly 7 is such that the disc spring assembly 7 is not activated, as shown in fig. 5.
Second stage (large deformation stage): with the further increase of the deformation, the gap between the connecting plate with the strip-shaped groove 423 and the disc spring assembly 7 is eliminated, the compressed energy dissipation disc spring 703 in the disc spring assembly 7 is compressed to participate in the structural energy dissipation, and meanwhile, the friction energy dissipation in the first stage still plays a role, as shown in fig. 6. Finally, the aim of multi-stage energy consumption is achieved.
In addition, the number of the cover plates 101 is two, the two cover plates 101 are arranged at intervals, and the first prestressed tendon group 5, the first energy dissipation assembly 420, the disc spring assembly 7, the second energy dissipation assembly 430 and the second prestressed tendon group 6 are all arranged between the two cover plates 101. That is, the two cover plates 101, the first end plate 201 and the second end plate 202 enclose a rectangular frame, and the first tendon group 5, the first energy dissipation component 420, the disc spring component 7, the second energy dissipation component 430 and the second tendon group 6 are all disposed in the rectangular frame to protect the components in the rectangular frame.
In order to improve the overall strength of the multi-stage self-resetting bracing member, the multi-stage self-resetting bracing member further comprises a reinforcing plate 301, and the reinforcing plate 301 is connected between the two cover plates 101. Optionally, the reinforcing plate 301 is a U-shaped plate. Alternatively, the reinforcing plate 301 may be a plurality of reinforcing plates 301, and the plurality of reinforcing plates 301 are distributed at intervals on both sides of the cover plate 101. While protecting the internal parts, the traditional closed sleeve structure is avoided, the deformation condition of the support can be observed conveniently, and the stage (the first stage or the second stage) of the support can be judged conveniently. The energy consumption by stages can increase the energy consumption capability while reducing the residual deformation, thereby promoting the construction of a tough city.
In addition, the invention also provides an assembling method of the multi-stage self-resetting supporting member, which comprises the following specific steps in one embodiment:
1. acquiring a first cover plate, a second cover plate, a force guide rod, a first prestressed tendon group, a second prestressed tendon group, a first end plate, a first energy consumption assembly, a disc spring assembly, a second energy consumption assembly and a second end plate;
2. rectangular holes are formed in the first end plate and the first energy consumption assembly;
3. combining the first cover plate, the second cover plate, the first end plate and the second end plate to form a rectangular frame;
4. the force guide rod penetrates through the first end plate and the first energy dissipation assembly, the force guide rod and the first energy dissipation assembly are welded, and the end part of the force guide rod and the second energy dissipation assembly are welded;
and the force guide rod penetrates through the first end plate and the base plates in the first energy dissipation assembly, the force guide rod and the base plates in the first energy dissipation assembly are welded, and the end part of the force guide rod and the base plates in the second energy dissipation assembly are welded.
5. Connecting a first group of prestressed tendon groups between a first end plate and a first energy dissipation assembly; connecting the second prestressed tendon group between the second energy dissipation assembly and the second end plate;
connecting a first group of prestressed tendon groups between a first end plate and a base plate in a first energy dissipation assembly; connecting the second prestressed tendon group between the backing plate and the second end plate in the second energy dissipation assembly;
6. and two ends of the disc spring assembly are respectively connected with the first energy dissipation assembly and the second energy dissipation assembly in a sliding manner, so that a secondary friction energy dissipation self-resetting device provided with prestressed ribs and a compression energy dissipation disc spring is formed.
The two ends of the disc spring component are respectively connected with the friction energy dissipation plate in the first energy dissipation component and the friction energy dissipation plate in the second energy dissipation component in a sliding manner to form a secondary friction energy dissipation self-resetting device provided with prestressed ribs and a stressed energy dissipation disc spring
When the stage assembled by the method is stressed from the reset supporting member, the force guide rod is displaced, and the supporting structure can be divided into two energy consumption stages according to the displacement distance of the force guide rod. In the first stage (small deformation stage), the second energy dissipation assembly slides relative to the cover plate to dissipate energy, meanwhile, the second prestressed tendon group moves rightwards to be pulled, and the disc spring assembly is not activated. In the second stage (large deformation stage), the second energy dissipation assembly continuously slides relative to the cover plate to dissipate energy, the second prestressed tendon group moves rightwards to be pulled, and the disc spring assembly is activated. The first stage provides restoring force through prestressing tendons group, and the second stage provides restoring force through prestressing tendons and stressed energy consumption dish spring, so the support of two stages all has better from the reset ability, improves its deformation restoring ability from this, avoids showing the deformation, prevents that the main structure from damaging.
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 modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A multi-stage self-resetting support member is characterized by comprising a cover plate, a force guide rod, a first prestressed tendon group, a second prestressed tendon group, a first end plate, a first energy dissipation assembly, a disc spring assembly, a second energy dissipation assembly and a second end plate, wherein the first end plate, the first energy dissipation assembly, the second energy dissipation assembly and the second end plate are sequentially arranged on the cover plate; the first prestressed tendon group is connected between the first end plate and the first energy dissipation assembly, the second prestressed tendon group is connected between the second end plate and the second energy dissipation assembly, and the disc spring assembly is connected between the first energy dissipation assembly and the second energy dissipation assembly; the force guide rod sequentially penetrates through the first end plate and the first energy dissipation assembly, the force guide rod is connected with the first end plate in a sliding mode, the force guide rod is fixedly connected with the first energy dissipation assembly, one end of the force guide rod is fixedly connected with the second energy dissipation assembly, and the other end of the force guide rod is fixedly connected to the outside.
2. The multi-stage self-resetting bracing member according to claim 1, wherein the first energy dissipation assembly comprises a backing plate and a sliding friction plate, the backing plate is fixedly connected with the force guide rod, a through hole is formed in the backing plate, and the first tendon group passes through the through hole; the end part of the first prestressed tendon group is connected with the sliding friction plate, and the sliding friction plate is connected with the cover plate through a bolt and can slide in a friction mode relative to the cover plate; the first energy dissipation assembly and the second energy dissipation assembly are consistent in structure and are symmetrically arranged.
3. The multi-stage self-resetting bracing member according to claim 2, wherein the sliding friction plate comprises a first folded plate, a connecting part and a second folded plate which are connected in sequence, the first folded plate is connected with the first prestressed tendon group, the connecting part is provided with a strip-shaped groove, the bolt passes through the strip-shaped groove to be connected with the cover plate, and the second folded plate is connected with the disc spring assembly in a sliding manner.
4. The multi-stage self-resetting bracing member according to claim 3, wherein the disc spring assembly comprises a screw rod and a plurality of compressed energy-consuming disc springs strung on the screw rod, and the screw rod is slidably connected with the second folding plate.
5. The multi-stage self-resetting bracing member according to claim 4, wherein both ends of the screw are provided with anchoring portions between the first flap and the second flap of the corresponding sliding friction plate with a gap therebetween.
6. The multi-stage self-resetting bracing member according to any one of claims 1 to 5, wherein the number of the cover plates is two, the two cover plates are arranged at intervals, and the first tendon group, the first energy dissipation component, the disc spring component, the second energy dissipation component and the second tendon group are arranged between the two cover plates.
7. The multi-stage self-resetting bracing member according to claim 6, further comprising a reinforcing plate connected between two of the cover plates.
8. The multi-stage self-resetting bracing member according to claim 7, wherein the reinforcing plate is a U-shaped plate.
9. A method of assembling a multi-stage self-resetting bracing member, comprising the steps of:
acquiring a first cover plate, a second cover plate, a force guide rod, a first prestressed tendon group, a second prestressed tendon group, a first end plate, a first energy consumption assembly, a disc spring assembly, a second energy consumption assembly and a second end plate;
rectangular holes are formed in the first end plate and the first energy consumption assembly;
combining the first cover plate, the second cover plate, the first end plate and the second end plate to form a rectangular frame;
the force guide rod penetrates through the first end plate and the first energy dissipation assembly, the force guide rod and the first energy dissipation assembly are welded, and the end part of the force guide rod and the second energy dissipation assembly are welded;
connecting a first group of prestressed tendon groups between a first end plate and a first energy dissipation assembly; connecting the second prestressed tendon group between the second energy dissipation assembly and the second end plate;
and two ends of the disc spring assembly are respectively connected with the first energy dissipation assembly and the second energy dissipation assembly in a sliding manner, so that a secondary friction energy dissipation self-resetting device provided with prestressed ribs and a compression energy dissipation disc spring is formed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530331A (en) * | 2021-07-19 | 2021-10-22 | 重庆大学 | Self-reset module, frame structure with self-reset module and assembling method |
| CN116290450A (en) * | 2023-04-12 | 2023-06-23 | 燕山大学 | Multi-stage anti-seismic self-resetting support |
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| CN116290450A (en) * | 2023-04-12 | 2023-06-23 | 燕山大学 | Multi-stage anti-seismic self-resetting support |
| CN116290450B (en) * | 2023-04-12 | 2023-09-22 | 燕山大学 | Multi-stage anti-seismic self-resetting support |
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