CN115217234A - Multistage energy dissipation brace combining friction damper and buckling restrained brace - Google Patents

Multistage energy dissipation brace combining friction damper and buckling restrained brace Download PDF

Info

Publication number
CN115217234A
CN115217234A CN202210945459.3A CN202210945459A CN115217234A CN 115217234 A CN115217234 A CN 115217234A CN 202210945459 A CN202210945459 A CN 202210945459A CN 115217234 A CN115217234 A CN 115217234A
Authority
CN
China
Prior art keywords
plate
buckling restrained
restrained brace
brace
fixedly connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210945459.3A
Other languages
Chinese (zh)
Other versions
CN115217234B (en
Inventor
岳焱超
李长鑫
梁亚鹏
张宇航
贾开
刘安明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Jiagu Jian'an Shock Absorbing Technology Co.,Ltd.
Original Assignee
Xian Jiaotong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Jiaotong University filed Critical Xian Jiaotong University
Priority to CN202210945459.3A priority Critical patent/CN115217234B/en
Publication of CN115217234A publication Critical patent/CN115217234A/en
Application granted granted Critical
Publication of CN115217234B publication Critical patent/CN115217234B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • E04B1/36—Bearings or like supports allowing movement
    • 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
    • E04B1/66—Sealings
    • E04B1/665—Sheets or foils impervious to water and water vapor
    • 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
    • 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
    • E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention discloses a multistage energy dissipation brace combining a friction damper and a buckling restrained brace, which comprises buckling restrained brace components, wherein the buckling restrained brace components are two and symmetrically distributed, the two sides of each buckling restrained brace component are respectively provided with a friction damping component, the bottom side of each friction damping component is provided with a fulcrum shaft component, the bottom of each fulcrum shaft component is fixedly connected with a base component, the bottom ends of the buckling restrained brace components are respectively and fixedly connected with the two ends of the base component, the top ends of the buckling restrained brace components are respectively and fixedly connected with a top plate, each buckling restrained brace component comprises a core plate, the two ends of each core plate are respectively and fixedly welded with a core reinforcing plate, the multistage energy dissipation brace combining the friction damper and the buckling restrained brace has a comprehensive and sufficient energy dissipation and protection function of a building component, and the multistage energy dissipation brace has good heat dissipation and bracing effects.

Description

Multistage energy dissipation brace of friction damper and buckling restrained brace combination
Technical Field
The invention relates to the technical field of structural shock absorption, in particular to a multi-order energy dissipation support combining a friction damper and a buckling restrained brace.
Background
In order to reduce the damage of the earthquake influence on the building structural member, the damping device is generally adopted in engineering for energy consumption during the earthquake, so that the earthquake energy input of the building structural member is reduced, the building structural member is prevented from being damaged by the earthquake influence, and in the prior art, the building engineering technicians usually adopt the buckling restrained brace to realize the damping protection on the building structure;
the buckling restrained brace belongs to a displacement type metal damper shock absorption device, the main body structure of the buckling restrained brace generally consists of three parts, namely a core unit, a restraining unit and a sliding mechanism unit, wherein the core unit is also called a main stress unit and is a main stress element in a member and is made of a steel plate with specific strength, the restraining unit is also called a lateral support unit and is responsible for providing a restraining mechanism so as to prevent the core unit from wholly or remaining buckling when being pressed by an axis, the sliding mechanism unit is also called a delaminating unit and is used for providing a sliding interface between the core unit and the restraining unit so that the brace has similar mechanical properties when being pulled and pressed as far as possible, and the phenomenon that the core unit generates friction force between the core unit and the restraining unit after being pressed and expanded so as to cause a large amount of increase of the axis pressure is avoided, and the buckling restrained brace is widely applied at home and abroad due to excellent energy consumption capability, but when in actual use, the traditional buckling restrained brace still has the following defects;
firstly, when the traditional buckling restrained brace structure is used, under the influence of frequent earthquakes, namely the shock intensity is low, the buckling restrained brace is generally in an elastic state, the buckling restrained brace structure in the state only provides certain lateral rigidity for a main body structure, and only under the influence of rare earthquakes, namely the shock intensity is high, the buckling restrained brace can enter a plastic state, and at the moment, excellent energy consumption capability can be shown, namely the damping and energy consumption effects of the traditional buckling restrained brace structure are not comprehensive, and the protection effect on the main body structure is not sufficient;
secondly, relative displacement is easy to occur between the core unit and the constraint unit of the traditional buckling constraint support structure due to buckling, the support structure generates heat under the friction action of the core unit and the constraint unit, the performance of the support structure material is changed under the influence of high temperature, and the structure is easy to buckle and destabilize, but the traditional buckling constraint support structure does not have good heat conduction performance to dissipate heat of the structure;
therefore, it is desirable to provide a multi-step dissipative brace with a combination of a friction damper and an anti-buckling restrained brace to solve the above problems.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, the present invention provides a multi-stage dissipative brace with a combination of a friction damper and a buckling restrained brace, so as to solve the above-mentioned problems in the prior art.
The invention provides the following technical scheme: a multi-order energy dissipation support combining a friction damper and a buckling restrained brace comprises buckling restrained brace components, the buckling restrained brace components are two and symmetrically distributed, friction damping components are arranged on two sides of each buckling restrained brace component, a fulcrum shaft component is arranged on the bottom side of each friction damping component, the bottom of each fulcrum shaft component is fixedly connected with a base component, the bottom ends of the buckling restrained brace components are fixedly connected with two ends of the base component respectively, and the top ends of the buckling restrained brace components are fixedly connected with a top plate;
the buckling restrained brace component comprises a core plate, core reinforcing plates are fixedly welded at two ends of the core plate, main structure connecting plates are arranged at the tail ends of the core reinforcing plates, restraining base plates are arranged at two sides of the core plate, and restraining plates are arranged at the upper end and the lower end of each restraining base plate;
the friction damping assembly comprises a connecting plate, wherein a special-shaped sliding plate is fixedly welded on the connecting plate, a pin shaft is fixedly embedded in the connecting plate, the connecting plate is fixedly connected with a main structure connecting plate through the pin shaft, constraint stiffening ribs are arranged on two sides of the special-shaped sliding plate, a friction material piece is arranged between the special-shaped sliding plate and the constraint stiffening ribs, and a friction damping bolt is fixedly connected among the special-shaped sliding plate, the constraint stiffening ribs and the friction material piece.
Furthermore, fixedly connected with high strength restraint bolt between restraint backing plate and the about board, all there is the clearance between core plate and restraint backing plate, the about board.
Furthermore, the outside fixedly connected with of restraint stiffening rib seals a box board, seal the equal fixedly connected with inserted sheet in both ends of box board, the mutual gomphosis between inserted sheet and the dysmorphism sliding plate, restraint stiffening rib, a box board, inserted sheet formation cavity structure, the outside fixed welding of restraint stiffening rib and restraint board.
Furthermore, the fulcrum shaft assembly comprises a cavity shaft, the cavity shaft is fixedly connected with the bottom side face of the box sealing plate and communicated with a cavity structure formed by the cavity shaft, a piston ring is fixedly connected to the bottom end of the cavity shaft, and a supporting shaft column is movably sleeved on the piston ring.
Further, the base assembly comprises a supporting seat, an empty groove is formed in the supporting seat, a bottom fixedly connected with bottom plate is arranged at the bottom end of the supporting seat, a sealing plate is fixedly mounted at the upper end of the supporting seat, and the empty groove formed in the supporting seat is sealed by the sealing plate.
Further, the upper end of the sealing plate is fixedly connected with the bottom end of the supporting shaft column, the inner space of the supporting shaft column is communicated with the empty groove of the supporting seat, non-Newtonian fluid is filled in the empty groove formed in the supporting seat, and the non-Newtonian fluid is filled in the whole communicated space formed by the box sealing plate, the cavity shaft, the supporting shaft column and the supporting seat.
The invention has the technical effects and advantages that:
1. the invention is provided with a buckling restrained brace component and a friction damping component, when the multi-stage energy dissipation brace combined by a friction damper and a buckling restrained brace is used, the brace is mainly divided into two energy dissipation stages, namely a core plate unstressed stage and a core plate stressed stage, only the friction damping component is subjected to axial force in the core plate unstressed stage, when the sliding load of the friction damping component is reached, the friction energy dissipation is carried out between a special-shaped sliding plate and a friction material piece, when the brace displacement reaches a set value, the buckling restrained brace component and the friction damping component are subjected to axial force action, at the moment, the friction damping component and the buckling restrained brace component form parallel connection to work together, firstly, when the loads applied to the buckling restrained brace component and the friction damping component do not reach the sliding load and the yielding load, the buckling restrained brace component and the friction damping component do not enter an energy dissipation state, when the loads applied to the buckling restrained brace component reach the sliding load and the yielding load, when the loads applied to the friction damping component do not reach the sliding load, only the buckling restrained brace component and the yielding load dissipation effect of the buckling restrained brace component and the multi-stage type energy dissipation effect under different seismic strengths can be realized through the structure.
2. The invention is provided with a friction damping component and a fulcrum component, when the friction damper and the multi-stage energy dissipation support combined with the buckling restrained brace are used, the cavity shaft and the support shaft column can provide a certain side face support function for the box sealing plate by using the filled non-Newtonian fluid, and have high flexibility in the relaxation activity and high-strength resistance effect in violent vibration due to the mechanical property of the non-Newtonian fluid.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of a buckling restrained brace assembly and a frictional damping assembly according to the present invention.
Fig. 3 is a schematic structural view of the fulcrum assembly of the present invention.
Fig. 4 is a schematic structural diagram of the base assembly of the present invention.
Fig. 5 is a partial cross-sectional structural diagram of the present invention.
FIG. 6 is a schematic cross-sectional view of the inner space of the sealing plate of the present invention.
The reference signs are: 1. a buckling restrained brace assembly; 101. a core plate; 102. a core reinforcement plate; 103. a main body structure connecting plate; 104. restraining the base plate; 105. a restraint plate; 106. a high strength restraint bolt; 2. a friction damping assembly; 201. connecting the plate; 202. a profiled sliding panel; 203. a pin shaft; 204. constraining the stiffening ribs; 205. a friction material member; 206. a friction damping bolt; 207. a box sealing plate; 208. embedding sheets; 3. a fulcrum assembly; 301. a cavity shaft; 302. a piston ring; 303. supporting the axle column; 4. a base assembly; 401. a supporting seat; 402. a base plate; 403. sealing plates; 404. a non-Newtonian fluid; 5. a top plate.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and the forms of the structures described in the following embodiments are merely examples, and the multi-stage dissipative brace in which the friction damper and the buckling restrained brace are combined according to the present invention is not limited to the structures described in the following embodiments, and all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the invention provides a multi-order energy-consuming support combined by a friction damper and a buckling restrained brace, which comprises buckling restrained brace components 1, wherein the buckling restrained brace components 1 are two and symmetrically distributed, friction damping components 2 are arranged on two sides of each buckling restrained brace component 1, a fulcrum shaft component 3 is arranged on the bottom side of each friction damping component 2, a base component 4 is fixedly connected to the bottom of each fulcrum shaft component 3, the bottom ends of the buckling restrained brace components 1 are respectively fixedly connected with two ends of the base component 4, and the top ends of the buckling restrained brace components 1 are respectively fixedly connected with a top plate 5;
in the embodiment, when the supporting device is used, the top plate 5 and the base assembly 4 are erected at the upper and lower supporting positions of the building structural member, so that in earthquake activities, the buckling restrained brace assembly 1 and the friction damping assembly 2 can protect the building structural member by using the energy dissipation effect, and the fulcrum shaft assembly 3 can provide an additional buffering supporting effect.
Referring to fig. 2, the buckling restrained brace assembly 1 comprises a core plate 101, core reinforcing plates 102 are fixedly welded at two ends of the core plate 101, main structure connecting plates 103 are arranged at the tail ends of the core reinforcing plates 102, restraining base plates 104 are arranged at two sides of the core plate 101, restraining plates 105 are arranged at the upper end and the lower end of each restraining base plate 104, high-strength restraining bolts 106 are fixedly connected between the restraining base plates 104 and the restraining plates 105, and gaps are reserved among the core plate 101, the restraining base plates 104 and the restraining plates 105;
in the embodiment, the core plate 101 is located in the inner center of the constraint base plate 104 and the constraint plate 105, and a gap is reserved between the core plate 101 and the constraint base plate 104 and between the core plate and the constraint plate 105, so that buckling deformation of the core plate 101 during earthquake activities is facilitated.
Referring to fig. 2, the friction damping assembly 2 includes a connecting plate 201, a special-shaped sliding plate 202 is fixedly welded on the connecting plate 201, a pin shaft 203 is fixedly embedded in the connecting plate 201, the connecting plate 201 is fixedly connected with a main structure connecting plate 103 by the pin shaft 203, both sides of the special-shaped sliding plate 202 are provided with constraining stiffening ribs 204, a friction material 205 is arranged between the special-shaped sliding plate 202 and the constraining stiffening ribs 204, friction damping bolts 206 are fixedly connected between the special-shaped sliding plate 202, the constraining stiffening ribs 204 and the friction material 205, the outer side of the constraining stiffening ribs 204 is fixedly connected with a box sealing plate 207, both ends of the box sealing plate 207 are fixedly connected with embedding pieces 208, the embedding pieces 208 are embedded with the special-shaped sliding plate 202, the constraining stiffening ribs 204, the box sealing plate 207 and the embedding pieces 208 form a cavity structure, and the constraining stiffening ribs 204 are fixedly welded with the outer side surface of the constraining plate 105;
in this embodiment, the constraining base plate 104 and the constraining plate 105 form the constraint of the core plate 101 by connecting the high-strength constraining bolts 106, and the two ends of the core plate 101 are welded with the two core reinforcing plates 102 to form a whole, so as to strengthen the connection between the core plate 101 and other members, the two special-shaped sliding plates 202 are respectively located at the two ends of the buckling constraint support assembly 1, the special-shaped sliding plates 202 are connected with the constraining stiffening ribs 204 by the friction damping bolts 206, and the friction material 205 is arranged between the special-shaped sliding plates 202 and the constraining stiffening ribs 204, so that the special-shaped sliding plates 202 can generate sliding friction under the load transmitted by the main body structure, the connecting plate 201 is connected with the main body structure connecting plate 103 by the pin 203, so that the friction damping structure and the buckling constraint support structure can be formed in parallel after the special-shaped sliding plates 202 perform the set sliding displacement, the core plate 101 can be stressed and participate in energy consumption at the later stage, the constraining stiffening ribs 204 and the constraining plate 105 are welded, so that the friction damping structure and the buckling constraint support structure and the buckling constraint stiffening ribs 204 are formed into a whole.
Referring to fig. 3-6, the fulcrum shaft assembly 3 includes a cavity shaft 301, the cavity shaft 301 is fixedly connected to the bottom side surface of the box-sealing plate 207 and is communicated with a cavity structure formed by the cavity shaft 301, a piston ring 302 is fixedly connected to the bottom end of the cavity shaft 301, the piston ring 302 is movably sleeved with a support shaft column 303, the base assembly 4 includes a support seat 401, the support seat 401 is provided with a hollow groove, the bottom end of the support seat 401 is fixedly connected with a bottom plate 402, a sealing plate 403 is fixedly installed at the upper end of the support seat 401, the sealing plate 403 seals the hollow groove formed by the support seat 401, the upper end of the sealing plate 403 is fixedly connected with the bottom end of the support shaft column 303, the internal space of the support shaft column 303 is communicated with the hollow groove of the support seat 401, the hollow groove formed by the support seat 401 is filled with a non-newton fluid 404, and the non-newton fluid 404 is filled in an overall communication space formed by the box-sealing plate 207, the cavity shaft 301, the support shaft column 303 and the support seat 401;
in this embodiment, the cavity shaft 301 and the supporting shaft column 303 can provide a certain lateral supporting function for the box sealing plate 207 by using the filled non-newtonian fluid 404, due to the mechanical properties of the non-newtonian fluid 404, the cavity shaft and the supporting shaft column have high flexibility in the relaxation activity and have a high-strength resisting effect in the severe vibration, in the transient vibration activity of an earthquake, the cushioning supporting function can be realized by using the filling supporting effect of the non-newtonian fluid 404, and in the relative friction motion of the profiled sliding plate 202 and the friction material piece 205, the heat generated by the friction material piece 205 can be conducted by the non-newtonian fluid 404, so that the friction material piece 205 is prevented from being difficult to dissipate heat to cause the material performance damage, and meanwhile, the whole supporting structural member is prevented from buckling and buckling instability due to high temperature;
it should be noted that the non-newtonian fluid 404 may be prepared from starch and water, and may be prepared in various ways, and may be flexibly prepared according to actual use.
The working principle and the beneficial effects of the invention are as follows: when the multistage energy dissipation brace combining the friction damper and the buckling restrained brace works, the brace is mainly divided into two energy dissipation stages, namely a core plate 101 unstressed stage and a core plate 101 stressed stage, only the friction damping component 2 bears axial force in the core plate 101 unstressed stage, when the sliding load of the friction damping component 2 is reached, the friction energy dissipation is carried out between the special-shaped sliding plate 202 and the friction material 205, when the brace displacement reaches a set value, the buckling restrained brace bears the axial force, at the moment, the friction damping component 2 and the buckling restrained brace component 1 work together in a parallel connection mode, firstly, when the loads borne by the buckling restrained brace component 1 and the friction damping component 2 do not reach the sliding load and the yield load, the buckling restrained brace component 1 and the friction damping component 2 do not enter an energy dissipation state, and when the load borne by the buckling restrained brace component 1 reaches the sliding load, when the load borne by the friction damping component 2 does not reach the yield load, only the buckling restrained brace component 1 can slide to consume energy at the moment, and finally under the condition that the load is continuously increased, the buckling restrained brace component 1 yields and consumes energy together with the friction damping component 2, the sectional energy consumption effect of the structure under different seismic strengths can be realized through the structure, the comprehensiveness of the shock absorption and energy consumption effect is improved, the cavity shaft 301 and the brace shaft column 303 can provide a certain side face bracing function for the box sealing plate 207 by using the filled non-Newtonian fluid 404, due to the mechanical characteristics of the non-Newtonian fluid 404, the cavity shaft 301 and the brace shaft column 303 have high flexibility in the relaxation activity and have a high-strength resisting effect in violent vibration, in the transitional vibration activity of an earthquake, the cushioning bracing function of the non-Newtonian fluid 404 can be realized by using the filling bracing effect of the non-Newtonian fluid 404, and in the relative friction motion of the special-shaped sliding plate 202 and the friction material piece 205, the heat generated by the friction material 205 is conducted by the non-Newtonian fluid 404, thereby preventing the friction material 205 from being damaged due to the difficult heat dissipation and preventing the buckling instability of the whole buckling-restrained brace structure due to high temperature.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (6)

1. The multistage energy dissipation support combined by the friction damper and the buckling restrained brace is characterized by comprising buckling restrained brace components (1), wherein the buckling restrained brace components (1) are two and symmetrically distributed, friction damping components (2) are arranged on two sides of each buckling restrained brace component (1), a fulcrum shaft component (3) is arranged on the bottom side of each friction damping component (2), a base component (4) is fixedly connected to the bottom of each fulcrum shaft component (3), the bottom ends of the buckling restrained brace components (1) are fixedly connected with two ends of each base component (4), and top plates (5) are fixedly connected to the top ends of the buckling restrained brace components (1);
the buckling restrained brace component (1) comprises a core plate (101), core reinforcing plates (102) are fixedly welded at two ends of the core plate (101), a main structure connecting plate (103) is arranged at the tail end of each core reinforcing plate (102), restraining base plates (104) are arranged at two sides of the core plate (101), and restraining plates (105) are arranged at the upper end and the lower end of each restraining base plate (104);
friction damping subassembly (2) is including connecting plate (201), connecting plate (201) fixed welding has special-shaped sliding plate (202), connecting plate (201) fixed gomphosis has round pin axle (203), connecting plate (201) utilizes round pin axle (203) and major structure connecting plate (103) fixed connection, the both sides of special-shaped sliding plate (202) all are equipped with restraint stiffening rib (204), be equipped with friction material spare (205) between special-shaped sliding plate (202) and restraint stiffening rib (204), fixedly connected with friction damping bolt (206) between special-shaped sliding plate (202), restraint stiffening rib (204), friction material spare (205).
2. The multi-step dissipative brace combining a friction damper and a buckling restrained brace according to claim 1, wherein: and a high-strength constraint bolt (106) is fixedly connected between the constraint base plate (104) and the constraint plate (105), and gaps are reserved between the core plate (101) and the constraint base plate (104) as well as between the core plate and the constraint plate (105).
3. The multi-step dissipative brace combining a friction damper and a buckling restrained brace according to claim 1, wherein: the outer side of the restraint stiffening rib (204) is fixedly connected with a box sealing plate (207), two ends of the box sealing plate (207) are fixedly connected with embedded pieces (208), the embedded pieces (208) are embedded with the special-shaped sliding plate (202), the restraint stiffening rib (204), the box sealing plate (207) and the embedded pieces (208) form a cavity structure, and the restraint stiffening rib (204) is fixedly welded with the outer side face of the restraint plate (105).
4. The multi-step dissipative brace combining a friction damper and a buckling restrained brace according to claim 1, wherein: the fulcrum shaft assembly (3) comprises a cavity shaft (301), the cavity shaft (301) is fixedly connected with the bottom side face of the box sealing plate (207) and communicated with a cavity structure formed by the cavity shaft, a piston ring (302) is fixedly connected to the bottom end of the cavity shaft (301), and a support shaft column (303) is movably sleeved on the piston ring (302).
5. The multi-step dissipative brace combining a friction damper and a buckling restrained brace according to claim 1, wherein: the base assembly (4) comprises a supporting seat (401), an empty groove is formed in the supporting seat (401), a bottom end fixedly connected with a bottom plate (402) of the supporting seat (401), a sealing plate (403) is fixedly mounted at the upper end of the supporting seat (401), and the empty groove formed in the supporting seat (401) is sealed by the sealing plate (403).
6. The multi-step dissipative brace with combination of friction damper and anti-buckling restrained brace as claimed in claim 5, wherein: the upper end of sealing plate (403) and the bottom fixed connection who supports jack-post (303), the inner space of supporting jack-post (303) communicates with the dead slot of supporting seat (401) each other, it has non-Newtonian fluid (404) to fill in the dead slot that supporting seat (401) were seted up, non-Newtonian fluid (404) are full in the whole intercommunication space that box board (207), cavity axle (301), supporting jack-post (303), supporting seat (401) formed.
CN202210945459.3A 2022-08-08 2022-08-08 Multi-stage energy dissipation support combined by friction damper and buckling restrained brace Active CN115217234B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210945459.3A CN115217234B (en) 2022-08-08 2022-08-08 Multi-stage energy dissipation support combined by friction damper and buckling restrained brace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210945459.3A CN115217234B (en) 2022-08-08 2022-08-08 Multi-stage energy dissipation support combined by friction damper and buckling restrained brace

Publications (2)

Publication Number Publication Date
CN115217234A true CN115217234A (en) 2022-10-21
CN115217234B CN115217234B (en) 2023-06-27

Family

ID=83615272

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210945459.3A Active CN115217234B (en) 2022-08-08 2022-08-08 Multi-stage energy dissipation support combined by friction damper and buckling restrained brace

Country Status (1)

Country Link
CN (1) CN115217234B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003034984A (en) * 2001-07-24 2003-02-07 Takenaka Komuten Co Ltd Vibration control brace
JP2012112098A (en) * 2010-11-19 2012-06-14 Takenaka Komuten Co Ltd Joining method of buckling stiffening brace and buckling stiffening brace
CN103774768A (en) * 2014-01-14 2014-05-07 东南大学 Reinforced sleeve concrete bending restraining support
CN205776862U (en) * 2016-06-21 2016-12-07 华侨大学 buckling-restrained shearing type damper
KR102085478B1 (en) * 2019-04-24 2020-03-05 주식회사 아이맥스트럭처 Buckling-Restrained Braces of higher deformation mode type
CN111535467A (en) * 2020-05-26 2020-08-14 广州市建工设计院有限公司 Multistage energy dissipater of surrendering of assembled
CN211622802U (en) * 2019-09-20 2020-10-02 震安科技股份有限公司 Friction compound type buckling restrained energy dissipation brace
CN113719177A (en) * 2021-08-11 2021-11-30 重庆大学 Novel damping plate group with multi-stage yielding and deformation restorable functions
CN113982135A (en) * 2021-11-17 2022-01-28 上海史狄尔建筑减震科技有限公司 Load-multistage energy dissipation buckling restrained brace with friction damper

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003034984A (en) * 2001-07-24 2003-02-07 Takenaka Komuten Co Ltd Vibration control brace
JP2012112098A (en) * 2010-11-19 2012-06-14 Takenaka Komuten Co Ltd Joining method of buckling stiffening brace and buckling stiffening brace
CN103774768A (en) * 2014-01-14 2014-05-07 东南大学 Reinforced sleeve concrete bending restraining support
CN205776862U (en) * 2016-06-21 2016-12-07 华侨大学 buckling-restrained shearing type damper
KR102085478B1 (en) * 2019-04-24 2020-03-05 주식회사 아이맥스트럭처 Buckling-Restrained Braces of higher deformation mode type
CN211622802U (en) * 2019-09-20 2020-10-02 震安科技股份有限公司 Friction compound type buckling restrained energy dissipation brace
CN111535467A (en) * 2020-05-26 2020-08-14 广州市建工设计院有限公司 Multistage energy dissipater of surrendering of assembled
CN113719177A (en) * 2021-08-11 2021-11-30 重庆大学 Novel damping plate group with multi-stage yielding and deformation restorable functions
CN113982135A (en) * 2021-11-17 2022-01-28 上海史狄尔建筑减震科技有限公司 Load-multistage energy dissipation buckling restrained brace with friction damper

Also Published As

Publication number Publication date
CN115217234B (en) 2023-06-27

Similar Documents

Publication Publication Date Title
CN101718123B (en) E-shaped fastener constrained type assembled buckling-restrained energy-consumed brace
CN103938750B (en) Energy dissipation brace damping device
CN213539880U (en) Self-resetting energy dissipation support
CN109868912B (en) Multi-stage energy-consumption foam metal ball composite type inner plate buckling-restrained brace and mounting method
CN113338469B (en) Assembled composite graded energy dissipation buckling restrained brace component
CN113417502B (en) Double-yield-point buckling restrained brace
CN201588312U (en) 'Ju'-shaped fastener restricted type fabricated anti-bending power-wasting support
CN215054172U (en) Composite damper with staged energy consumption
CN103243832B (en) Polyurethane efficient support is filled with in a kind of steel pipe
CN114016791B (en) Metal friction double-yield-point composite energy dissipation support
CN115030343A (en) Double-stage buckling restrained brace damper
CN115217234A (en) Multistage energy dissipation brace combining friction damper and buckling restrained brace
CN2900658Y (en) Accentric support
CN113958001A (en) Parallel multiple sleeve type double-yield-point buckling restrained brace
CN209854964U (en) Bearing-energy dissipation structure with double-order yield characteristic
CN103696497B (en) The method of attachment of a kind of steel flanged beam diagonal brace and laced of battened compression member
CN111173155B (en) Shearing-bending parallel connection type graded energy dissipation damper
CN210712520U (en) Assembled buckling-restrained brace device for improving anti-seismic performance of bridge
CN111218999A (en) Metal and spring rubber composite damper
CN217759286U (en) Full-assembly cross buckling-free energy dissipation supporting component
CN212506857U (en) Metal and spring rubber composite damper
CN202831286U (en) Dual-core buckling-proof supporting structure
CN212271289U (en) Two-stage buckling-restrained energy dissipation support
CN113585845B (en) Assembly type self-resetting viscous energy dissipation support based on SMA stranded wire
CN209941905U (en) Shear-resistant reinforced node of assembled concrete wallboard and concrete wall column

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20231019

Address after: 710000 Room 301-23, West Building, Building 10, West Life Science Park, Fengdong New City, Xixian New District, Xi'an City, Shaanxi Province

Patentee after: Shaanxi Jiagu Jian'an Shock Absorbing Technology Co.,Ltd.

Address before: Beilin District Xianning West Road 710049, Shaanxi city of Xi'an province No. 28

Patentee before: XI'AN JIAOTONG University