CN115324233A - Double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall - Google Patents

Double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall Download PDF

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Publication number
CN115324233A
CN115324233A CN202210874562.3A CN202210874562A CN115324233A CN 115324233 A CN115324233 A CN 115324233A CN 202210874562 A CN202210874562 A CN 202210874562A CN 115324233 A CN115324233 A CN 115324233A
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China
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wall
arc
energy consumption
energy dissipation
toe
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CN202210874562.3A
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CN115324233B (en
Inventor
翁维素
潘本卿
赵明坤
乔春蕾
邵志新
刘晓东
杜建婷
郭隆乾
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Hebei University of Architecture
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Hebei University of Architecture
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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
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
    • 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
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
    • E04B2/60—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members
    • 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
    • E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
    • 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
    • E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
    • 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
    • E04H9/0235—Anti-seismic devices with hydraulic or pneumatic damping
    • 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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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention discloses a double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall which comprises a shear wall and a frame beam, wherein assembly parts are formed at two feet of the bottom of the shear wall, a wall toe energy dissipation assembly is arranged between the assembly parts and the frame beam, a shear connecting piece for connecting the bottom of the shear wall and the frame beam is arranged between the bottom of the shear wall and the frame beam, and the wall toe energy dissipation assembly is a three-stage energy dissipation assembly. The wall toe has simple structure, is easy to process, and can be produced in factories and installed on site; the energy consumption and shock absorption mechanism is clear, the bending energy consumption and the pulling, shearing, pressing and shearing energy consumption work independently, and the bending energy consumption and the pulling, shearing, pressing and shearing energy consumption work cooperatively to form a complete energy consumption system; the energy consumption forms are various, and friction energy consumption, metal plastic deformation energy consumption, elastic deformation energy consumption and viscous damping energy consumption are combined in order to form a complete energy consumption system; the damage of the structural main body is concentrated on the wall toe, the damage deformation of the structural main body is effectively avoided, the energy dissipation component is only needed to be replaced after the earthquake, the wall body and the non-energy dissipation component are basically not damaged, and the repair cost is greatly reduced.

Description

Double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall
Technical Field
The invention belongs to the technical field of civil engineering structure earthquake resistance and shock absorption, and particularly relates to a double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall.
Background
Most of traditional shear wall manufacturing materials adopt a combination form of concrete or steel plates and concrete, and the traditional shear wall manufacturing materials are gradually eliminated by people due to the self-weight, the complex construction process, serious pollution and the like. The cross laminated wood (called CLT for short) formed by pressing a multi-layer solid wood sawn timber or a composite board cross assembly by adopting a structural adhesive is widely applied to building structures in recent years, and a large number of researchers at home and abroad prove that the cross laminated wood has excellent characteristics in the aspects of bearing capacity requirement, dead weight, thermal efficiency, fire prevention requirement, green environmental protection and the like compared with other types of wood composite boards, so that the cross laminated wood and the application of the combination form of the cross laminated wood and other materials in the aspect of shear walls have great potential.
Earthquake damage and experimental research show that: the damage of the shear wall structure is mostly generated at the bottom of the structure with the most unfavorable stress, and the damage is difficult to repair and the repair cost is high. Replaceable parts are arranged at seriously damaged parts such as wall corners, the main body part of the structure is protected by dissipating earthquake energy through the parts, and the parts are replaced in time after an earthquake, so that the structure function is recovered as soon as possible, and the repair difficulty and cost are reduced. The existing dampers are various in types, but have the problems of single energy consumption mechanism, insufficient energy consumption efficiency, high manufacturing cost or the like, and the damping force is not changed along with the increase of displacement, so that the structural rigidity, the construction cost and the protection strength on a main body part of the structure are influenced.
Disclosure of Invention
The invention provides a double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall, and aims to solve the problems in the prior art.
The technical scheme of the invention is as follows: the utility model provides a double arcs shape mild steel wall toe and sway power consumption CLT-rectangle steel sheet complex shear wall, includes shear wall, frame roof beam, shear wall bottom both feet department forms assembly portion, be provided with wall toe power consumption subassembly between assembly portion and the frame roof beam, be provided with the shear connector who connects the two between shear wall bottom and the frame roof beam, wall toe power consumption subassembly is tertiary power consumption subassembly.
The shear force connecting piece comprises a bottom plate, two vertical plates are arranged on the bottom plate, the bottom plate and the vertical plates are enclosed to form a mounting groove, the mounting groove is sleeved on the lower portion of the shear wall, and the bottom plate of the shear force connecting piece is connected with the frame beam.
The wall toe energy dissipation assembly comprises a lower connecting assembly located at the lower portion, and the lower connecting assembly is connected with the frame beam.
Lower part coupling assembling includes the rectangle connecting block, rectangle connecting block both sides outer wall department is provided with the wedge connecting block, the wedge connecting block links to each other with the arc steel sheet, the upper end and the middle part coupling assembling of arc steel sheet link to each other.
The top and the bottom of arc steel sheet form the engaging lug, be provided with the long circle bolt through-hole in the engaging lug, be provided with the friction cover in the long circle bolt through-hole, be provided with the bolt that passes the wedge connecting block and carry out the connection in the friction cover.
The inner wall of the long circular bolt through hole and the bolt rod are uniformly coated with friction coating, and the friction among the bolt, the friction sleeve and the long circular bolt through hole is low in vibration energy consumption.
The bottom of the top of the arc-shaped steel plate is thicker than the middle of the arc-shaped steel plate, and the deformation of the arc-shaped steel plate is the energy consumption of the middle earthquake.
The middle connecting assembly comprises a second connecting plate, a bending energy consumption assembly is arranged at the upper end of the second connecting plate, an upper connecting assembly is arranged at the upper end of the bending energy consumption assembly, and the upper connecting assembly is connected with the shear wall.
And a middle energy consumption assembly is arranged between the arc-shaped steel plates, and energy is consumed under the action of a large earthquake.
The middle energy consumption assembly comprises an oil cylinder, a telescopic piston rod is arranged in the oil cylinder, the piston rod penetrates through the arc-shaped steel plate, and viscous damping energy consumption and friction energy consumption are formed in the oil cylinder.
The invention has the following beneficial effects:
according to the invention, wall toes with staged energy consumption are arranged at the weak positions of the bottom corners of the shear wall, and under the action of small earthquake or wind load, the friction sleeve, the high-strength bolt and the long circular bolt through hole are in mutual contact to generate friction energy consumption; under the action of a middle shock, along with the increase of the vertical displacement of the structure, the two arc-section steel plates enter a plastic deformation stage from an elastic stage to yield and consume energy under the action of pulling shear or pressing shear, the low-yield-point steel has lower yield strength, and the fatigue performance is good under the action of reciprocating load, so that the double-arc-section steel plates enter a yield state before other components, and the energy consumption effect is obvious; under the action of a large earthquake, along with the increase of the vertical displacement of the structure, the deformation of the double-arc-section energy dissipation steel plate is further increased along the transverse out-of-plane or in-plane, the arc-shaped check blocks on the two sides of the arc-section steel plate are touched, and the vertical displacement is converted into the energy dissipation of the middle energy dissipation supporting system along the transverse tension and compression.
The wall toe has simple structure, is easy to design and process, and can be produced in factories and installed on site; the energy consumption and shock absorption mechanism is clear, the bending energy consumption and the pulling, shearing, pressing and shearing energy consumption work independently, and the bending energy consumption and the pulling, shearing, pressing and shearing energy consumption work cooperatively to form a complete energy consumption system; the energy consumption forms are various, and friction energy consumption, metal plastic deformation energy consumption, elastic deformation energy consumption and viscous damping energy consumption are combined in order to form a complete energy consumption system; the damage of the structural main body is concentrated on the wall toe, the damage deformation of the structural main body is effectively avoided, the energy dissipation component is only needed to be replaced after the earthquake, the wall body and the non-energy dissipation component are basically not damaged, and the repair cost is greatly reduced.
The novel wall body formed by combining the CLT-rectangular steel sleeves has higher lateral stiffness and bearing capacity, greatly reduces the self weight, obviously enhances the thermal efficiency, and is green, environment-friendly and pollution-free.
Under the action of external load, the bottom shear connector can enable the wall body to have larger shear resistance and simultaneously rotate in different degrees on the surface, the load acting on the wall body is transferred to the bottom angles on two sides, a multi-stage energy dissipation mechanism is realized, and the wall body swings but is not damaged.
Drawings
FIG. 1 is a schematic plan view of the connection of the present invention;
FIG. 2 is a schematic three-dimensional connection of the present invention;
FIG. 3 is a schematic view of the connection of the arc-shaped mild steel energy dissipating components in the present invention;
FIG. 4 is a schematic view of the connection of the lower connecting member of the present invention;
FIG. 5 is a schematic diagram of the connection of the central energy consuming component of the present invention;
FIG. 6 is a schematic view of the assembly of the central energy dissipating assembly of the present invention;
FIG. 7 is a schematic view of the connection of the bending dissipating assembly of the present invention;
FIG. 8 is a schematic view of the connection of the upper connecting assembly of the present invention;
FIG. 9 is a partially disassembled schematic view of a central energy consuming assembly of the present invention;
FIG. 10 is another partially broken away schematic view of a central energy consuming assembly of the present invention;
FIG. 11 is a schematic view of the attachment of the tambour stop of the present invention;
FIG. 12 is a schematic view of a shear wall connection according to the present invention;
FIG. 13 is a schematic view of the arrangement of the through holes of the wood screws in the present invention;
FIG. 14 is a schematic view of a high tensile bolt of the present invention;
FIG. 15 is a schematic view of a shear connector according to the present invention;
wherein:
0. wall toe
1. Lower connecting component of arc-shaped mild steel energy dissipation component 2
3. Middle part coupling assembling 4 middle part power consumption subassembly
5. Upper connecting component of bending energy dissipation component 6
7. 8 shear connector of shear wall
9. Frame beam
1.1 Straight section part of arc steel plate 1.1.1
1.1.2 Arc section part 1.1.3 connecting lug
1.1.4 Long circular bolt through hole 1.1.5 friction sleeve
1.1.6 Friction coating 1.1.7 square connecting through hole
2.1 First connecting plate 2.2 rectangular connecting block
2.3 Wedge-shaped connecting block 2.4 bolt through hole A
2.5 High-strength bolt A2.7 high-strength bolt B
2.8 Bolt through hole B
3.1 Second connecting plate
4.11 Oil cylinder 4.12 piston rod
4.13 Piston 4.14 inner chamber
4.15 First cavity 4.16 second cavity
4.17 Reflux cavity 4.18 first reflux orifice
4.19 Second backflow hole 4.20 sealing rubber ring
4.21 Buffer rubber block 4.22 oil hole
4.23 Baffle 4.24 end closure plate A
4.25 End closing plate B4.26 viscous damping medium
4.27 Connecting rod 4.28 arc baffle
4.29 Drum stopper of separating cylinder 4.31
4.32 Friction plate 4.33 high-strength bolt D
4.34 Connecting block 4.35 bending spring
4.36 Locating slot 4.37 limit stop A
4.38 Limit stop B4.39 smooth rubber ring
5.1 Bending energy dissipation plate
6.1 Third connecting plate 6.2 end plate
6.3 Bolt through hole C6.4 high-strength bolt C
7.1 Orthogonal laminated wood 7.2 steel sleeve
7.3 Wood screw 7.4 wood screw through hole
7.5 Right-angled folded steel plate
8.1 Bottom plate 8.2 riser
8.3 A long circular arc bolt through hole.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings and examples:
as shown in fig. 1 to 15, the double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall comprises a shear wall 7 and a frame beam 9, wherein assembly parts are formed at two feet of the bottom of the shear wall 7, a wall toe energy dissipation assembly is arranged between the assembly parts and the frame beam 9, a shear connection member 8 for connecting the bottom of the shear wall 7 and the frame beam 9 is arranged between the bottom of the shear wall 7 and the frame beam 9, and the wall toe energy dissipation assembly is a three-stage energy dissipation assembly.
The shear connector 8 comprises a bottom plate, two vertical plates are arranged on the bottom plate, the bottom plate and the vertical plates are enclosed to form a mounting groove, the mounting groove is sleeved on the lower portion of the shear wall 7, and the bottom plate of the shear connector 8 is connected with the frame beam 9.
The wall toe energy dissipation assembly comprises a lower connecting assembly 2 located at the lower portion, and the lower connecting assembly 2 is connected with a frame beam 9.
Lower part coupling assembling 2 includes rectangular connecting block 2.2, rectangular connecting block 2.2 both sides outer wall department is provided with wedge connecting block 2.3, wedge connecting block 2.3 links to each other with arc steel sheet 1.1, arc steel sheet 1.1's upper end links to each other with middle part coupling assembling 3.
The top and the bottom of arc steel sheet 1.1 form engaging lug 1.1.3, be provided with obround bolt through-hole 1.1.4 in the engaging lug 1.1.3, be provided with friction sleeve 1.1.5 in the obround bolt through-hole 1.1.4, be provided with the bolt that passes wedge connecting block 2.3 and carry out the connection in the friction sleeve 1.1.5.
The inner wall of the long circular bolt through hole 1.1.4 and the bolt rod are uniformly coated with friction coating 1.1.6, and the friction among the bolt, the friction sleeve 1.1.5 and the long circular bolt through hole 1.1.4 is low in vibration energy consumption.
The top and the bottom of the arc-shaped steel plate 1.1 are thicker than the middle part of the arc-shaped steel plate 1.1, and the deformation of the arc-shaped steel plate 1.1 is the energy consumption of the middle earthquake.
Middle part coupling assembling 3 includes second connecting plate 3.1, second connecting plate 3.1 upper end is provided with crooked power consumption subassembly 5, crooked power consumption subassembly 5 upper end is provided with upper portion coupling assembling 6, upper portion coupling assembling 6 links to each other with shear force wall 7.
And a middle energy consumption assembly 4 is arranged between the arc-shaped steel plates 1.1, and energy is consumed under the action of a large earthquake.
The middle energy consumption assembly 4 comprises an oil cylinder 4.11, a telescopic piston rod 4.12 is arranged in the oil cylinder 4.11, the piston rod 4.12 penetrates through an arc-shaped steel plate 1.1, and viscous damping energy consumption and friction energy consumption are formed in the oil cylinder 4.11.
Specifically, in the arc-shaped mild steel energy dissipation assembly 1, the arc-shaped mild steel energy dissipation assembly 1 includes two opposite arc-shaped steel plates 1.1, a straight section 1.1.1 is formed at the lower end of the upper end of the arc-shaped steel plate 1.1, an arc section 1.1.2 is formed between the two straight sections 1.1.1, a connecting lug 1.1.3 is formed by processing the straight section 1.1.1, a plurality of the connecting lugs 1.1.3 are uniformly distributed at equal intervals, a long round bolt through hole 1.1.4 is formed in the connecting lug 1.1.3, a friction sleeve 1.1.5 for performing friction energy dissipation is arranged in the long round bolt through hole 1.1.4, friction paint 1.1.6 is uniformly coated on the inner wall of the long round bolt through hole 1.1.4 and a high-strength bolt B2.8, the friction sleeve 1.5 and the long round bolt through hole 1.1.4 are in contact with each other to generate friction energy dissipation.
Specifically, a square connecting through hole 1.1.7 is formed in the arc section portion 1.1.2, and the square connecting through hole 1.1.7 is used for mounting the middle energy consumption assembly 4.
The middle energy dissipation assemblies 4 between the arc sections 1.1.2 are one group or two groups.
Specifically, 2 parts of lower part coupling assembling, lower part coupling assembling 2 include first connecting plate 2.1, first connecting plate 2.1 upper end is provided with rectangular connection piece 2.2, rectangular connection piece 2.2 is as the connection basis of arc section portion 1.1.2.
Two outer walls of rectangular connecting block 2.2 department is provided with a plurality of equidistant wedge connecting block 2.3, and as corresponding, engaging lug 1.1.3 is three, wedge connecting block 2.3 is six, two liang of a set of wedge connecting block 2.3.
Bolt through holes A2.4 are formed in the first connecting plate 2.1, and high-strength bolts A2.5 are used for being fixed with the frame beams 9 through the bolt through holes A2.4.
Form bolt through hole B2.8 in the wedge connecting block 2.3, be provided with high strength bolt B2.7 in the bolt through hole B2.8, high strength bolt B2.7 is still through friction sleeve 1.1.5 to realize the fixed between arc mild steel energy dissipation subassembly 1 and the lower part coupling assembling 2.
Specifically, middle part coupling assembling 3 part, middle part coupling assembling 3 includes second connecting plate 3.1, second connecting plate 3.1 is similar with first connecting plate 2.1, and middle part coupling assembling 3 had both realized that the top of segmental arc portion 1.1.2 is fixed, and middle part coupling assembling 3 fixes crooked power consumption subassembly 5 simultaneously.
Specifically, the energy dissipation assembly 5 is bent, the energy dissipation assembly 5 comprises a plurality of parallel bent energy dissipation plates 5.1, and an elliptical hole is formed in the middle of each bent energy dissipation plate 5.1.
Specifically, the upper connecting assembly 6 part and the upper connecting assembly 6 comprise a third connecting plate 6.1, and the lower end of the third connecting plate 6.1 is connected with the upper end of the bent energy dissipation plate 5.1.
Two end plates 6.2 are arranged at the upper end of the third connecting plate 6.1, bolt through holes C6.3 are formed in the end plates 6.2, high-strength bolts C6.4 are arranged in the bolt through holes C6.3, and the high-strength bolts C6.4 are used for being fixed with the shear wall 7.
Specifically, the middle energy consumption assembly 4 comprises an oil cylinder 4.11, a sliding piston rod 4.12 is arranged in the oil cylinder 4.11, viscous damping energy consumption is formed at the tail of the piston rod 4.12, and friction energy consumption is formed at the outer wall of the piston rod 4.12.
Specifically, a piston 4.13 is disposed at the tail of the piston rod 4.12, and the piston 4.13 slides in the inner cavity 4.14, so as to drive the piston rod 4.12 to slide.
The inner cavity 4.14 is divided into a first cavity 4.15 and a second cavity 4.16 by the piston 4.13, the piston rod 4.12 is positioned in the first cavity 4.15, a backflow cavity 4.17 is formed between the outer wall of the inner cavity 4.14 and the inner wall of the oil cylinder 4.11, and a first backflow hole 4.18 positioned at the first cavity 4.15 and a second backflow hole 4.19 positioned at the second cavity 4.16 are formed in the inner cavity 4.14.
And a sealing rubber ring 4.20 for sealing and sliding is arranged on the outer wall of the piston 4.13.
A buffer rubber block 4.21 is arranged in the inner cavity 4.14, and the buffer rubber block 4.21 carries out limit buffer on the piston 4.13.
An oil hole 4.22 is formed in the oil cylinder 4.11, and the oil hole 4.22 is used for injecting damping media.
The oil cylinder 4.11 is internally provided with a baffle 4.23, the baffle 4.23 divides the oil cylinder 4.11 into two cavities, one of the two cavities is used for viscous damping energy consumption, and the other cavity is used for friction energy consumption.
Two tip of hydro-cylinder 4.11 are tip shrouding A4.24 and tip shrouding B4.25 respectively, tip shrouding A4.24 is used for piston rod 4.12's the passing through, hold viscous damping medium 4.26 in the cavity that tip shrouding B4.25 is located, tip shrouding B4.25 outer wall department is provided with connecting rod 4.27, connecting rod 4.27 corresponds with piston rod 4.12.
Two arc-shaped baffles 4.28 are arranged in the connecting rod 4.27 and the piston rod 4.12, and the arc-shaped section 1.1.2 is clamped by the two arc-shaped baffles 4.28.
The inner cavity 4.14 is the inner cavity of the separating cylinder 4.29, and two ends of the separating cylinder 4.29 are connected with the end closing plate B4.25 and the baffle plate 4.23.
A drum-shaped stop block 4.31 is arranged on the inner side wall of the oil cylinder 4.11, and the drum-shaped stop block 4.31 is used for friction energy consumption.
The outer wall of the piston rod 4.12 is provided with a friction plate 4.32, the friction plate 4.32 is in an inclined and elastic state, the piston rod 4.12 is driven to move along with the arc section part 1.1.2, and the friction plate 4.32 is in contact with the drum-shaped stopper 4.31 to consume energy.
The outer wall of the piston rod 4.12 is provided with a connecting block 4.34, a high-strength bolt D4.33 is arranged between the connecting blocks 4.34, a through hole is formed in the friction plate 4.32, and the high-strength bolt D4.33 penetrates through the through hole.
The back of the friction plate 4.32 is provided with a bending spring 4.35, and the other end of the bending spring 4.35 is connected with the outer wall of the piston rod 4.12.
In particular, both sides of the drum stopper 4.31 are provided with friction plates 4.32 inclined toward thereto.
Specifically, a set of friction plates 4.32 is disposed on each of the four side walls of the piston rod 4.12.
A positioning groove 4.36 is formed at the outer wall of the piston rod 4.12 to facilitate the installation of the bending spring 4.35.
And a limit stop A4.37 and a limit stop B4.38 are arranged on the outer wall of the piston rod 4.12, and the limit stops A4.37 and B4.38 are used for limiting.
A smooth rubber ring 4.39 is arranged between the end closing plate A4.24 and the piston rod 4.12.
Yet another embodiment
A double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall comprises double-arc soft steel energy dissipation assemblies 1, lower connection assemblies 2, middle connection assemblies 3, middle energy dissipation supporting assemblies 4, bending energy dissipation assemblies 5, upper connection assemblies 6, shear walls 7, shear connection members 8 and frame beams 9.
The double-arc-shaped mild steel energy dissipation assembly 1, the middle energy dissipation supporting assembly 4 and the bending energy dissipation assembly 5 are connected and fixed through the middle connecting assembly 3 to jointly form an energy dissipation assembly, and are connected and fixed with the frame beam 9 through the lower connecting assembly 2, and are connected and fixed with the shear wall 7 through the upper connecting assembly 6, and meanwhile, the shear wall 7 is connected and fixed through the shear connecting piece 8 and the frame beam 9.
The double-arc mild steel energy consumption assembly 1 comprises two arc steel plates 1.1 which are identical and symmetrically distributed, the arc steel plates 1.1 are formed by bending and processing a whole steel plate, the material of the double-arc mild steel energy consumption assembly can be but is not limited to low-yield-point steel such as BLY100, BLY160, BLY225 and the like, the double-arc mild steel energy consumption assembly is divided into a straight section part 1.1.1 and an arc section part 1.1.2, and the connecting part of the straight section parts 1.1.1 at the two end parts and the middle arc section part 1.1.2 is subjected to smooth transition treatment; the thickness of each part of the straight steel plate is consistent, a plurality of connecting lugs 1.1.3 are longitudinally cut out, long round bolt through holes 1.1.4 are formed in the connecting lugs, friction sleeves 1.1.5 matched with the long round bolt through holes 1.1.4 are inserted into the holes, the aperture profile is larger than the diameter of the high-strength bolt B2.8 but not larger than the profile of the long round bolt through holes 1.1.4, and the straight steel plate is made of friction metal such as red copper; the inner wall of the long round bolt through hole 1.1.4 and the screw rod of the high-strength bolt 22.8 are uniformly coated with friction coating 1.1.6, the high-strength bolt 22.8, the friction sleeve 1.1.5 and the long round bolt through hole 1.1.4 are sequentially nested and combined from inside to outside, when the external structure bears a small earthquake or wind load, the friction sleeve 1.1.5 is driven by the high-strength bolt 22.8, and the long round bolt through hole 1.1.4 is contacted with one another to generate friction energy consumption, namely the first stage energy consumption.
The thickness of the two ends of the arc section part 1.1.2 steel plate is the largest, the thickness is gradually reduced from the two ends to the middle part, the thickness of the 1/2 part of the total height of the arc section part 1.1.2 is the smallest, the maximum thickness of the arc section 1.1.2 is not more than the thickness of the straight section 1.1.1 steel plate, and the minimum thickness is not less than 1/3 of the thickness of the straight section 1.1.1.
The middle part of the steel plate of the arc section part 1.1.2 is provided with a square connecting through hole 1.1.7; under the action of a medium shock, the steel plate with the two arc sections 1.1.2 enters a plastic deformation stage from an elastic stage to yield and consume energy under the action of pulling shear or pressing shear, the steel with the low yield point has lower yield strength, the fatigue performance is good under the action of reciprocating load, the steel plate with the two arc sections enters a yield state before other components, and the energy consumption effect is remarkable, namely the energy consumption in the second stage.
The lower connecting assembly 2 comprises a first connecting plate 2.1, a rectangular connecting block 2.2 and a wedge-shaped connecting block 2.3, the first connecting plate is provided with a plurality of bolt through holes A2.4, and the lower connecting assembly 2 and the frame beam 9 are connected through high-strength bolts A2.5; the rectangular connecting blocks 2.2 are positioned on the first connecting plate 2.1 in the middle in the longitudinal direction and the transverse direction; a plurality of wedge connecting blocks 2.3 are symmetrically distributed on two sides of the rectangular connecting block 2.2, the number of the wedge connecting blocks is 2 times that of the connecting lugs 1.1.3, a bolt through hole B2.7 is longitudinally formed in each wedge connecting block 2.3, and the lower connecting component 2 and the double-arc-shaped soft steel energy dissipation component 1 are connected through high-strength bolts B2.8.
The middle connecting assembly 3 comprises a second connecting plate 3.1, a rectangular connecting block 2.2 and a wedge-shaped connecting block 2.3, the area of the second connecting plate is not larger than that of the first connecting plate, the second connecting plate 3.1, the rectangular connecting block 2.2 and the wedge-shaped connecting block 2.3 in the middle connecting assembly are vertically and symmetrically distributed with the first connecting plate 2.1, the rectangular connecting block 2.2 and the wedge-shaped connecting block 2.3 in the lower connecting assembly 2, and other structures are consistent with those of the lower connecting assembly 2; and each wedge-shaped connecting block 2.3 is longitudinally provided with a bolt through hole B2.7, and is connected with the middle connecting component 3 and the double-arc soft steel energy dissipation component 1 through a high-strength bolt B2.8.
The middle energy consumption support assembly 4 comprises an oil cylinder 4.11 and a piston rod 4.12, the piston rod 4.12 is inserted from one end of the oil cylinder 4.11, and a connecting rod 4.27 at the other end is connected with an end sealing plate B4.25; the piston 4.13 located at the end of the piston rod 4.12 is nested in the partition cylinder 4.29, and divides a closed space in the partition cylinder 4.29, namely the inner cavity 4.14 into a first cavity 4.15 and a second cavity 4.16, an annular closed space between the outer wall of the partition cylinder 4.29 and the inner wall of the oil cylinder 4.11 is a backflow cavity 4.17, two ends of the partition cylinder 4.29 are provided with a first backflow hole 4.18 and a second backflow hole 4.19, sealing rubber rings 4.20 are arranged at parts of the piston 4.13, the inner wall of the partition cylinder, and the piston rod 4.12, which are in contact with the baffle 4.23, so as to prevent the viscous damping medium 4.26 from overflowing, a buffer rubber block 4.21 is arranged at the inner wall of the end part B4.25 corresponding to the piston 4.13, so as to prevent the piston 4.13 from having an excessive impact force during the movement and generating rigid collision with the oil cylinder wall, and an oil filling hole 4.22 is reserved at the end part B4.25 so as to ensure that the inner cavity 4.14 and the backflow cavity 4.17 are filled with the viscous damping medium, such as silicon oil and the like.
The four inner walls of the middle of the oil cylinder 4.11 are respectively welded with a drum-shaped stop 4.31, two sides of the drum-shaped stop 4.31 are provided with friction plates 4.32 which are obliquely arranged, the oblique lower ends of the friction plates 4.32 are fixed on a piston rod 4.12 through the hinged connection of high-strength bolts D4.33 and connecting blocks 4.34, a plurality of groups of bending springs 4.35 are arranged under the friction plates 4.32, two ends of each bending spring 4.35 are fixedly connected on the piston rod 4.12 and under the friction plates 4.32 through positioning grooves 4.36, each bending spring 4.35 is an arc-shaped spring which is processed through a special process and has certain initial rigidity and deformation recovery capacity, the drum-shaped stop 4.31 and the two friction plates 4.32 have certain initial distances in the horizontal direction and the vertical direction, one surface of each friction plate 4.32, which is in contact with the drum-shaped stop 4.31, is covered with a friction layer, and the friction layer is made of a metal sheet with a high friction coefficient.
And in the transverse direction, a limit stop A4.37 and a limit stop B4.38 are arranged on the outer sides of the two friction plates 4.32, the rotation of the friction plates 4.32 to the horizontal position is not influenced by the two limit stops, the clear distance from the limit stop A4.37 to the end sealing plate A4.34 is a, the clear distance from the limit stop B4.38 to the baffle plate 4.23 is B, the clear distance from the piston 4.13 to the buffer rubber block 4.21 is c, the clear distance from the piston 4.13 to the baffle plate 4.23 is d, and the length e of the friction plates 4.32 in the transverse direction is that a = B = c = d < e.
Under the action of a large earthquake, along with the increase of the vertical displacement of the structure, the double-arc-section energy consumption steel plate is further increased along the transverse deformation, the arc-shaped check blocks 4.28 on the two sides of the arc-section steel plate are touched, the vertical displacement is converted into the energy consumption of the middle energy consumption supporting component 4 along the transverse tension and compression, and the energy consumption is the energy consumption of the third stage.
In the process, a large external force is transmitted to the piston 4.13 along the piston rod 4.12 at a high speed, so that the piston 4.13 is driven to move in the inner cavity 4.14 to squeeze the viscous damping medium 4.26, the viscous damping medium is forced to pass through the first backflow hole 4.18 or the second backflow hole 4.19 from the first cavity 4.15 or the second cavity 4.16 to enter the backflow cavity 4.17, throttling damping is generated, seismic energy is dissipated, meanwhile, the viscous damping medium 4.26 newly entering the backflow cavity 4.17 squeezes the medium in the original backflow cavity, the viscous damping medium passes through the second backflow hole 4.19 or the first backflow hole 4.18 from the backflow cavity 4.17 to enter the second cavity 4.16 or the first cavity 4.15, friction force between the viscous damping medium and the cavity wall is increased, and energy consumption capability is improved.
Meanwhile, the piston rod 4.12 moves for a certain distance to drive the friction plate 4.32 to contact with the drum-shaped stop block 4.31 to form linear-surface friction, and in the moving process, the friction plate 4.32 rotates along the high-strength bolt D4.33 in a fixed-axis mode, so that the bending spring 4.35 is promoted to provide reaction force along the bending direction of the bending spring, and the energy consumption capacity is further improved.
The bending energy dissipation assembly 5 comprises a plurality of bending energy dissipation plates 5.1, the number of the bending energy dissipation plates is determined according to the actual working condition, and the bending energy dissipation plates are made of low-yield-point steel plates; the bending energy consumption plate 5.1 is a rectangular plate with a complete oval block dug in the middle, arc blocks dug at two ends respectively, and is connected with the upper third connecting plate 6.1 and the lower second connecting plate 3.1 through welding in a full penetration welding mode of opening a K-shaped break; during the whole structure stress process, the horizontal force of the external load acting on the shear wall 7 is transmitted downwards along the wall body, wherein the bending damage generated by the bending action on the wall bottoms at the two sides is completely borne by the bending energy dissipation assembly, so that the main part of the structure is prevented from being damaged.
The upper connecting assembly 6 comprises a third connecting plate 6.1, the size of which is the same as that of the first connecting plate 2.1; two rectangular vertical end plates 6.2 are longitudinally connected on the third connecting plate 6.1 through welding, two rows of bolt through holes C6.3 are formed in the end plates, the upper row and the lower row are arranged in a staggered mode, and the upper connecting assembly 6 and the shear wall 7 are connected through high-strength bolts C6.4.
The shear wall 7 comprises an orthogonal glued wood simple name CLT7.1, a steel sleeve 7.2 and a wood screw 7.3; the orthogonal laminated wood 7.1 is formed by vertically and orthogonally assembling three or more layers of solid wood sawn timber or structural composite boards, and pressing structural adhesives between the boards; the steel sleeve 7.2 is formed by bending a whole steel plate through impact, the material of the steel sleeve can be but is not limited to steel plates such as Q235 and Q345, the section shape is rectangular, a closed rectangular cavity is formed through a welding seam, and the CLT7.1 is contained in the rectangular cavity; the front and the back of the rectangular steel sleeve 7.2 are respectively provided with a wood screw through hole 7.4, the aperture sizes are the same, and the positions are staggered in a quincunx shape; the front side and the back side of the CLT7.1 are respectively provided with a non-through wood screw hole with the same position and aperture as the rectangular steel sleeve 7.2, and the depth of the hole is 1/3 of the thickness of the CLT7.1; the CLT7.1, the steel sleeve 7.2 and the wood screw 7.3 jointly form a shear wall 7; after bottom corners on two sides of the shear wall 7 are dug out, a right-angle folded steel plate 7.5 is respectively welded in a repair mode, and the wall toes 0 are installed on the bottom corners on the two sides of the shear wall 7.
The frame beam 9 is common H-shaped steel or a steel beam with an H-shaped section formed by welding common steel, and the width of a section flange of the frame beam is not less than the width of the shearing connector bottom plate 8.1; the upper flange of the frame beam 9 is provided with bolt through holes a2.4 corresponding to the shear connector bottom plate 8.1 and the first connecting plate 2.1 of the lower connecting assembly respectively.
According to the invention, wall toes with staged energy consumption are arranged at the weak positions of the bottom corners of the shear wall, and under the action of small earthquake or wind load, the friction sleeve, the high-strength bolt and the long circular bolt through hole are in mutual contact to generate friction energy consumption; under the action of a middle shock, along with the increase of the vertical displacement of the structure, the two arc-section steel plates enter a plastic deformation stage from an elastic stage to yield and consume energy under the action of pulling shear or pressing shear, the low-yield-point steel has lower yield strength, and the fatigue performance is good under the action of reciprocating load, so that the double-arc-section steel plates enter a yield state before other components, and the energy consumption effect is obvious; under the action of a large earthquake, along with the increase of the vertical displacement of the structure, the deformation of the double-arc-section energy dissipation steel plate is further increased along the transverse out-of-plane or in-plane, the arc-shaped check blocks on the two sides of the arc-section steel plate are touched, and the vertical displacement is converted into the transverse tension and compression energy dissipation of the middle energy dissipation supporting system.
The wall toe has simple structure, is easy to design and process, and can be produced in factories and installed on site; the energy consumption and shock absorption mechanism is clear, the bending energy consumption and the pulling, shearing, pressing and shearing energy consumption work independently, and the bending energy consumption and the pulling, shearing, pressing and shearing energy consumption work cooperatively to form a complete energy consumption system; the energy consumption forms are various, and friction energy consumption, metal plastic deformation energy consumption, elastic deformation energy consumption and viscous damping energy consumption are combined in order to form a complete energy consumption system; the damage of the structural main body is concentrated on the wall toe, the damage deformation of the structural main body is effectively avoided, the energy dissipation component is only needed to be replaced after the earthquake, the wall body and the non-energy dissipation component are basically not damaged, and the repair cost is greatly reduced.
The novel wall body formed by combining the CLT-rectangular steel sleeves has higher lateral stiffness and bearing capacity, greatly reduces the self weight, obviously enhances the thermal efficiency, and is green, environment-friendly and pollution-free.
Under the action of external load, the bottom shear connector can enable the wall body to have larger shear resistance and simultaneously rotate in different degrees on the surface, the load acting on the wall body is transferred to the bottom angles on two sides, a multi-stage energy dissipation mechanism is realized, and the wall body swings but is not damaged.

Claims (10)

1. The utility model provides a two arc soft steel wall toes and sway power consumption CLT-rectangle steel cover combination shear wall, includes shear force wall (7), frame roof beam (9), its characterized in that: the shear wall is characterized in that assembly parts are formed at two feet of the bottom of the shear wall (7), wall toe energy dissipation assemblies are arranged between the assembly parts and the frame beams (9), shear connecting pieces (8) for connecting the bottom of the shear wall (7) and the frame beams (9) are arranged between the bottom of the shear wall and the frame beams, and the wall toe energy dissipation assemblies are three-level energy dissipation assemblies.
2. The double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall as claimed in claim 1, wherein: the shear connector (8) comprises a bottom plate, two vertical plates are arranged on the bottom plate, the bottom plate and the vertical plates are enclosed to form a mounting groove, the mounting groove is sleeved on the lower portion of the shear wall (7), and the bottom plate of the shear connector (8) is connected with the frame beam (9).
3. The double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall as claimed in claim 1, wherein: the wall toe energy dissipation assembly comprises a lower connecting assembly (2) located at the lower portion, and the lower connecting assembly (2) is connected with the frame beam (9).
4. The double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall as claimed in claim 3, wherein: lower part coupling assembling (2) are including rectangle connecting block (2.2), rectangle connecting block (2.2) both sides outer wall department is provided with wedge connecting block (2.3), wedge connecting block (2.3) link to each other with arc steel sheet (1.1), the upper end of arc steel sheet (1.1) links to each other with middle part coupling assembling (3).
5. The double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall as claimed in claim 4, wherein: the top and the bottom of arc steel sheet (1.1) form engaging lug (1.1.3), be provided with long circle bolt through-hole (1.1.4) in engaging lug (1.1.3), be provided with friction cover (1.1.5) in long circle bolt through-hole (1.1.4), be provided with the bolt that passes wedge connecting block (2.3) and connect in friction cover (1.1.5).
6. The double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall as claimed in claim 5, wherein: the friction coating (1.1.6) is uniformly coated on the inner wall of the oblong bolt through hole (1.1.4) and the bolt rod, and the friction among the bolt, the friction sleeve (1.1.5) and the oblong bolt through hole (1.1.4) is small in vibration energy consumption.
7. The double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall as claimed in claim 6, wherein: the top and the bottom of the arc-shaped steel plate (1.1) are thicker than the middle part of the arc-shaped steel plate (1.1), and the deformation of the arc-shaped steel plate (1.1) is the energy consumption of the medium earthquake.
8. The double-arc soft steel wall toe and swinging energy dissipation CLT-rectangular steel sleeve combined shear wall as claimed in claim 7, wherein: middle part coupling assembling (3) include second connecting plate (3.1), second connecting plate (3.1) upper end is provided with crooked power consumption subassembly (5), crooked power consumption subassembly (5) upper end is provided with upper portion coupling assembling (6), upper portion coupling assembling (6) link to each other with shear force wall (7).
9. The double-arc soft steel wall toe and swinging energy dissipation CLT-rectangular steel sleeve combined shear wall as claimed in claim 8, wherein: and a middle energy consumption assembly (4) is arranged between the arc-shaped steel plates (1.1), and energy is consumed under the action of a large shock.
10. The double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall as claimed in claim 9, wherein: the middle energy consumption assembly (4) comprises an oil cylinder (4.11), a telescopic piston rod (4.12) is arranged in the oil cylinder (4.11), the piston rod (4.12) penetrates through an arc-shaped steel plate (1.1), and viscous damping energy consumption and friction energy consumption are formed in the oil cylinder (4.11).
CN202210874562.3A 2022-07-25 2022-07-25 Double-arc soft steel wall toe and swing energy dissipation CLT-rectangular steel sleeve combined shear wall Active CN115324233B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072869A1 (en) * 1981-02-25 1983-03-02 TOYAMA, Jun Suspension device
JP2008025830A (en) * 2006-06-20 2008-02-07 Shimizu Corp Base isolation device
CN107190879A (en) * 2017-04-20 2017-09-22 同济大学 A kind of orthogonal laminated wood shear wall of the replaceable foundation of band
KR20180116898A (en) * 2017-04-18 2018-10-26 박상태 Beam Connecting Type Friction Damper and Earthquake-proof Method using thereof
CN208168023U (en) * 2018-03-20 2018-11-30 西安建筑科技大学 The replaceable combination energy consumption tension and compression type mild steel damper of one kind and steel plate shear force wall
CN209907638U (en) * 2018-12-28 2020-01-07 青海民族大学 Engineering damping device used under foundation differential settlement and earthquake coupling
CN112854509A (en) * 2021-01-11 2021-05-28 西安建筑科技大学 Arc mild steel energy dissipation damper with viscoelastic material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072869A1 (en) * 1981-02-25 1983-03-02 TOYAMA, Jun Suspension device
JP2008025830A (en) * 2006-06-20 2008-02-07 Shimizu Corp Base isolation device
KR20180116898A (en) * 2017-04-18 2018-10-26 박상태 Beam Connecting Type Friction Damper and Earthquake-proof Method using thereof
CN107190879A (en) * 2017-04-20 2017-09-22 同济大学 A kind of orthogonal laminated wood shear wall of the replaceable foundation of band
CN208168023U (en) * 2018-03-20 2018-11-30 西安建筑科技大学 The replaceable combination energy consumption tension and compression type mild steel damper of one kind and steel plate shear force wall
CN209907638U (en) * 2018-12-28 2020-01-07 青海民族大学 Engineering damping device used under foundation differential settlement and earthquake coupling
CN112854509A (en) * 2021-01-11 2021-05-28 西安建筑科技大学 Arc mild steel energy dissipation damper with viscoelastic material

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