CN114856037A - Variable damping assembled shear force wall - Google Patents

Variable damping assembled shear force wall Download PDF

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Publication number
CN114856037A
CN114856037A CN202210708882.1A CN202210708882A CN114856037A CN 114856037 A CN114856037 A CN 114856037A CN 202210708882 A CN202210708882 A CN 202210708882A CN 114856037 A CN114856037 A CN 114856037A
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China
Prior art keywords
shear wall
mild steel
shaped
damping
connecting rod
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CN202210708882.1A
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Chinese (zh)
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CN114856037B (en
Inventor
任剑锋
赖志超
黄庆农
周敏
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Fangyuan Construction Group Co ltd
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Fangyuan Construction Group Co ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, 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
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/0237Structural braces with damping devices
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/30Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Abstract

The application discloses a variable damping fabricated shear wall, which relates to the field of fabricated building technology and comprises a shear wall main body and a U-shaped mild steel damper embedded in the shear wall main body, wherein the U-shaped mild steel damper comprises two U-shaped mild steel damping pieces, the two U-shaped mild steel damping pieces are respectively positioned on the upper side and the lower side of the shear wall main body, a plurality of connecting rods are connected between the two U-shaped mild steel damping pieces, and a connecting rod sleeve is provided with a protective sleeve; and the inner side surface and the outer side surface of the U-shaped soft steel damping piece are both provided with buffer base plates. The connecting rod can force the upper U-shaped soft steel damping piece and the lower U-shaped soft steel damping piece to generate large deformation in the application, so that the reinforcing effect of the U-shaped soft steel damper on the shock resistance of the assembly type building wall is improved.

Description

Variable damping assembled shear force wall
Technical Field
The application relates to the field of assembly type building technology, in particular to a variable damping assembly type shear wall.
Background
The assembly type building transfers a large amount of field operation work in the traditional building mode to a factory for carrying out, and after components and accessories for the building are processed and manufactured in the factory, the components and the accessories are transported to a construction site for installation and connection, so that the assembly type building is a green and efficient building technology.
The assembled shear wall is an important component in an assembled building, and has the defects of insufficient lateral force resistance, poor seismic performance and the like in the use process. Aiming at the defect of insufficient lateral force in an assembly type building wall body, the anti-seismic performance of the assembly type shear wall is improved by a scheme that a U-shaped mild steel damper is arranged in the assembly type shear wall in the prior art, the U-shaped mild steel damper utilizes the advantages of low yield strength, good ductility and the like of the U-shaped mild steel damper, compared with a main body structure, the U-shaped mild steel damper can be earlier subjected to yielding, variable damping is generated by a U-shaped mild steel damping piece along with the yielding deformation of the U-shaped mild steel damper, and the effect of dissipating seismic energy can be achieved by utilizing the accumulated plastic deformation after the mild steel is yielded.
In the prior art, the U-shaped mild steel damper is embedded in the main body structure of the fabricated shear wall, so that the deformation amplitude is limited in the use process, and the reinforcement of the shock resistance of the fabricated shear wall is limited.
Disclosure of Invention
In order to improve the reinforcing effect of U type mild steel attenuator to the shock resistance of assembled shear force wall, this application provides a variable damping assembled shear force wall.
The application provides a variable damping assembled shear force wall adopts following technical scheme:
a variable damping fabricated shear wall comprises a shear wall main body and U-shaped mild steel dampers embedded in the shear wall main body, wherein each U-shaped mild steel damper comprises two U-shaped mild steel damping pieces, the two U-shaped mild steel damping pieces are respectively positioned at the upper side and the lower side of the shear wall main body, a plurality of connecting rods are connected between the two U-shaped mild steel damping pieces, and the connecting rod sleeves are provided with sheath pipes; and the inner side surface and the outer side surface of the U-shaped soft steel damping piece are both provided with buffer base plates.
By adopting the technical scheme, when the shear wall main body deforms under the action of an earthquake, relative displacement occurs between the structures at the upper side and the lower side of the shear wall due to the deformation of the integral structure, so that the two U-shaped soft steel damping parts of the U-shaped soft steel damper have larger relative displacement, the U-shaped soft steel damping parts at the upper side and the lower side of the shear wall are connected through the connecting rod, the connecting rod is positioned at the inner side of the sheath pipe, the connecting rod is easy to keep the length unchanged in the deformation process of the shear wall main body, the connecting rod has the function of restraining the relative displacement between the two U-shaped soft steel damping parts, so that the connecting rod has the function of drawing the deformation of the two U-shaped soft steel damping parts, the buffer base plate has the function of avoiding the U-shaped soft steel damping parts in the deformation process of the U-shaped soft steel damping parts, and the U-shaped soft steel damping parts can generate larger yielding deformation, therefore, the U-shaped soft steel damping piece can dissipate more seismic energy, and the seismic performance of the assembled shear wall can be improved.
Optionally, the cushion plate is a rubber plate, chamfers are arranged on the periphery of the rubber plate, and the surfaces of the chamfers and the rubber plate are far away from an included angle of one side face of the U-shaped soft steel damping piece is an obtuse angle.
Through adopting above-mentioned technical scheme, the rubber slab has elasticity, and the U type mild steel damping piece is dodged in the flexible, and the contained angle between the side that the U type mild steel damping piece was kept away from to the chamfer surface rubber slab of rubber slab is the obtuse angle, is favorable to reducing the condition that U type mild steel damping piece surface formed stress concentration.
Optionally, the U-shaped soft steel damping member includes an arc portion and straight plate portions located at two sides of the arc portion, two edges of the straight plate portions, which are far away from the arc portion, are respectively bent outwards to form folded edge portions, and the U-shaped soft steel damping member is connected with the connecting rod through the folded edge portions.
Through adopting above-mentioned technical scheme, the U type mild steel damping piece is connected with the connecting rod through hem portion, and when the connecting rod pull the in-process that the U type mild steel damping piece warp, the arm of force of connecting rod to U type mild steel damping piece is longer, owing to make the deflection of U type mild steel damping piece increase as far as possible to make U type mild steel damping piece dissipate earthquake's energy as far as possible.
Optionally, the end of the connecting rod penetrates through the corresponding edge folding part, the edge folding part is provided with a through hole matched with the connecting rod, and two side faces of the edge folding part are welded and fixed with the connecting rod at the same time.
By adopting the technical scheme, the two side surfaces of the edge folding part are welded and fixed with the connecting rod at the same time, and when the welding part between the edge part and the connecting rod is broken after long-term use, the residual part of the welding salient point on the connecting rod can form clamping connection effect on the through hole, so that the connecting rod is prevented from being separated from the through hole, and the connecting relation between the connecting rod and the edge folding part is kept.
Optionally, the sheath tube is a spring tube, and adjacent coils of the spring tube are mutually and tightly abutted.
By adopting the technical scheme, the spring pipe is wrapped by the concrete structure in the shear wall main body, the spring pipe can be driven to generate elastic deformation in the process that the shear wall main body deforms along with an earthquake, and the elastic deformation of the spring pipe can further dissipate the energy applied to the fabricated shear wall by the earthquake.
Optionally, a coating interlayer is arranged on the outer circumferential surface of the spring tube.
By adopting the technical scheme, the shear wall main body is of a reinforced concrete structure, and in the process of pouring the shear wall main body, the coating interlayer coats the outer peripheral surface of the spring tube, so that concrete for forming the shear wall main body is not easy to permeate into the inner side of the spring tube through gaps among coils of the spring tube. After the shear wall main body is formed, the coating interlayer is automatically broken under the deformation force of the shear wall main body when the shear wall main body is deformed, so that the spring tube can be elastically deformed. In addition, the coating interlayer is used as a separation structure for separating the inner cavity of the spring pipe from concrete, and the coating interlayer has the advantage of being easy to construct.
Optionally, the spring tube includes a plurality of spring unit tubes arranged in sequence along the axial direction.
Through adopting above-mentioned technical scheme, the spring pipe comprises a plurality of spring unit pipes, the processing degree of difficulty of reducible spring.
Optionally, each of the same U-shaped soft steel damper is connected with a positioning steel wire mesh between the connecting rods, the connecting rods are connected with the positioning steel wire mesh in a penetrating manner, the diameter of an inscribed circle of meshes of the positioning steel wire mesh is smaller than the outer diameter of the spring pipe, and the upper surface and the lower surface of the positioning steel wire mesh are respectively abutted to the spring unit pipes.
By adopting the technical scheme, the connecting rods are connected through the positioning steel wire meshes, so that the relative position between the connecting rods can be kept stable by the same U-shaped soft steel damper, and the relative position between the upper U-shaped soft steel damping piece and the lower U-shaped soft steel damping piece of the same U-shaped soft steel damper is stable. The diameter of an inscribed circle of meshes of the positioning steel wire mesh is smaller than the outer diameter of the spring pipe, so that the spring unit pipe can support the positioning steel wire mesh, and the height position of the positioning steel wire mesh on the connecting rod can be controlled conveniently; the location wire net can use current wire net to cut processing as required, easily acquires, is favorable to saving the cost to be connected through the mode of wearing to establish between location wire net and the connecting rod, the connection process is comparatively convenient high-efficient.
Optionally, the cushion plate includes the sheet steel, the sheet steel with be equipped with the inlayer wire net between the U type mild steel damping piece, the inlayer wire net is wave structure, the week side edge of cushion plate with be connected with the sealing strip between the surface of U type mild steel damping piece.
By adopting the technical scheme, a closed gap is formed between the thin steel plate, the sealing strip and the U-shaped soft steel damping part together, concrete for forming the shear wall main body is not easy to enter the gap between the thin steel plate and the U-shaped soft steel damping part, the inner steel wire mesh positioned between the thin steel plate and the U-shaped soft steel damping part is of a wave-shaped structure, and when the U-shaped soft steel damping part deforms, the inner steel wire mesh can deform to avoid the U-shaped soft steel damping part, so that the U-shaped soft steel damping part generates larger deformation; and moreover, when the inner steel wire mesh deforms, part of seismic energy can be dissipated, and the seismic capacity of the assembled shear wall can be further improved.
Optionally, one side of the thin steel plate close to the U-shaped soft steel damping piece is set to be a frosted surface.
By adopting the technical scheme, when the inner steel wire mesh is deformed under pressure, the inner steel wire mesh abuts against the surface of the thin steel plate and generates relative friction with the surface of the thin steel plate in the deformation process, and one side of the thin steel plate close to the U-shaped soft steel damping part is set as the friction surface, so that the friction force between the inner steel wire mesh and the thin steel plate is favorably increased, and the further dissipation of earthquake energy is favorably realized.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the shear wall main body deforms due to the action of an earthquake, the two U-shaped mild steel damping parts of the U-shaped mild steel damper have larger relative displacement, and the connecting rod is easier to keep a state of unchanged length in the deformation process of the shear wall main body, so that the connecting rod has the function of drawing the two U-shaped mild steel damping parts to deform, and the U-shaped mild steel damping parts can generate larger yield deformation, thereby being beneficial to enabling the U-shaped mild steel damping parts to dissipate more earthquake energy;
the U-shaped soft steel damping piece is connected with the connecting rod through the hem part, when the connecting rod pulls the U-shaped soft steel damping piece to deform, the force arm of the connecting rod to the U-shaped soft steel damping piece is longer, and the deformation of the U-shaped soft steel damping piece is increased as much as possible, so that the U-shaped soft steel damping piece dissipates earthquake energy as much as possible;
3. the concrete structure in the shear wall main body wraps the spring pipe, when the shear wall main body deforms along with an earthquake, the spring pipe can be driven to generate elastic deformation, and the elastic deformation of the spring pipe can further dissipate energy applied to the assembled shear wall by the earthquake.
Drawings
Fig. 1 is a schematic view of the entire structure of embodiment 1.
Fig. 2 is a partial enlarged view at a in fig. 1.
Fig. 3 is a schematic view of the structure of the spring unit tube of example 1.
Fig. 4 is a schematic structural view of the U-shaped mild steel damper of embodiment 1.
FIG. 5 is a schematic view showing the state of connection of the U-shaped soft steel damper and the rubber plate in example 2.
Description of reference numerals: 1. a shear wall body; 2. a U-shaped mild steel damper; 21. a U-shaped mild steel damping member; 211. an arc-shaped portion; 212. a straight plate portion; 213. a hem part; 214. a through hole; 22. a connecting rod; 23. a spring tube; 231. a spring unit tube; 232. a coating barrier layer; 24. a cushion plate; 241. a thin steel sheet; 242. a sealing strip; 243. an inner steel wire mesh; 244. avoiding holes; 245. a rubber plate; 246. chamfering; 3. and (5) positioning the steel wire mesh.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
Example 1:
the embodiment of the application discloses a variable damping fabricated shear wall. Referring to fig. 1 and 2, the variable damping fabricated shear wall comprises a shear wall main body 1 of a reinforced concrete structure and a U-shaped mild steel damper 2 embedded in the shear wall main body 1, wherein the U-shaped mild steel damper 2 comprises two U-shaped mild steel damping pieces 21, the two U-shaped mild steel damping pieces 21 are respectively positioned at the upper side and the lower side of the shear wall main body 1, a plurality of connecting rods 22 are connected between the two U-shaped mild steel damping pieces 21 of the same U-shaped mild steel damper 2, and each connecting rod 22 is sleeved with a sheath pipe; the inner side surface and the outer side surface of the U-shaped soft steel damping piece 21 are respectively provided with a buffer base plate 24, and the two buffer base plates 24 respectively cover the inner side surface and the outer side surface of the U-shaped soft steel damping piece 21.
When the assembled shear wall is subjected to earthquake action, relative displacement occurs between the structures on the upper side and the lower side of the shear wall main body 1, and relatively large displacement occurs between the two U-shaped mild steel damping pieces 21 of the U-shaped mild steel damper 2, in the process, the connecting rod 22 is positioned in the sheath tube, so that the connecting rod 22 and the shear wall main body 1 are kept relatively separated, the connecting rod 22 has the function of blocking the relative displacement between the two U-shaped mild steel damping pieces 21, the connecting rod 22 can pull the U-shaped mild steel damping pieces 21 to deform greatly, and the anti-seismic function of the U-shaped mild steel damper 2 is improved.
Referring to fig. 1 and 2, the U-shaped soft steel damping member 21 includes an arc portion 211 and straight plate portions 212 located at two sides of the arc portion 211, edges of one side of the two straight plate portions 212 far away from the arc portion 211 are respectively bent outwards to form folded edge portions 213, and the folded edge portions 213 are perpendicular to the straight plate portions 212. The mounting positions of two U-shaped mild steel damping pieces 21 of the same U-shaped mild steel damper 2 correspond up and down, the opening of the U-shaped mild steel damping piece 21 positioned above is arranged upwards, and the opening of the U-shaped mild steel damping piece 21 positioned below is arranged downwards; the two bent portions 213 of the U-shaped soft steel damper 21 located above are connected to the two bent portions 213 of the U-shaped soft steel damper 21 located below by the link 22, and the length direction of the link 22 is perpendicular to the bent portions 213.
Referring to fig. 2, the end of the connecting rod 22 passes through the corresponding folded edge 213, the folded edge 213 has a through hole 214 adapted to the connecting rod 22, the end of the connecting rod 22 extends outside the through hole 214, and both side surfaces of the folded edge 213 are welded to the outer peripheral surface of the connecting rod 22. When the connecting rod 22 is welded and fixed to the flange 213 and the welded portion between the connecting rod 22 and the flange 213 is broken due to fatigue, the weld crater left at the end of the connecting rod 22 prevents the end of the connecting rod 22 from coming out of the through hole 214, so that the connecting rod 22 and the flange 213 are maintained in a connected relationship.
Referring to fig. 2, the buffer plate includes a thin steel plate 241, a weather strip 242 is connected between the peripheral edge of the thin steel plate 241 and the surface of the U-shaped soft steel damping member 21, so that a gap is formed between the thin steel plate 241 and the surface of the U-shaped soft steel damping member 21, an inner steel mesh 243 is disposed inside the gap between the thin steel plate 241 and the U-shaped soft steel damping member 21, the inner steel mesh 243 is in a wave-shaped structure, and a wave-shaped extending path of the inner steel mesh 243 is disposed along an overall curved path of the U-shaped soft steel damping member 21. One side of the thin steel plate 241 close to the U-shaped soft steel damping piece 21 is provided with a frosted surface to increase the friction damping between the inner steel wire mesh 243 and the thin steel plate 241, so as to facilitate the dissipation of earthquake energy through the friction damping.
When the U-shaped mild steel damping member 21 deforms, the inner steel wire mesh 243 can deform to avoid the U-shaped mild steel damping member 21, so that the deformation of the U-shaped mild steel damping member 21 is increased, and the energy applied to the shear wall main body 1 due to an earthquake can be further dissipated when the inner steel wire mesh 243 deforms under pressure.
Referring to fig. 2, the thin steel plate 241 is provided with an avoidance hole 244 for avoiding the connecting rod 22, and a gap between an inner edge of the avoidance hole 244 and an outer circumferential surface of the connecting rod 22 is filled and blocked by asphalt filler to prevent concrete for forming the shear wall body 1 from penetrating into the gap between the thin steel plate 241 and the U-shaped soft steel damper 21.
Referring to fig. 3, the protective sleeve is a spring tube 23, adjacent coils of the spring tube 23 are tightly abutted to each other, and the spring tube 23 is wrapped in concrete of the shear wall main body 1, so that the spring tube 23 can be driven to deform in the deformation process of the shear wall, and the spring tube 23 can dissipate energy applied to the assembled shear wall by an earthquake.
Referring to fig. 3 and 4, the spring tube 23 is composed of a plurality of spring unit tubes 231, the spring unit tubes 231 are sequentially sleeved on the connecting rod 22 along the axial direction, a coating interlayer 232 is disposed on the outer circumferential surface of each spring unit tube 231, and the coating interlayer 232 can seal a gap between adjacent coils of the spring unit tubes 231, so that concrete poured to form the shear wall main body 1 is not easy to permeate into the inner side of the spring tube 23, and thus the inner circumferential surface of the spring tube 23 and the outer circumferential surface of the connecting rod 22 are kept in a separated state.
Referring to fig. 4, a positioning steel wire mesh 3 is connected between the connecting rods 22 of the same U-shaped mild steel damper 2, and the positioning steel wire mesh 3 is located in the middle of the connecting rods 22 in the height direction. In other embodiments, the number of the positioning steel wire meshes 3 can be set to more than two according to requirements. The connecting rod 22 is connected with the positioning steel wire mesh 3 in a penetrating mode, the diameter of an inscribed circle of meshes of the positioning steel wire mesh 3 is smaller than the outer diameter of the spring pipe 23, and the upper surface and the lower surface of the positioning steel wire mesh 3 are respectively abutted to the spring unit pipes 231.
Each connecting rod 22 of same U type mild steel attenuator 2 passes through location wire net 3 to be connected, makes the relative position between each connecting rod 22 comparatively stable to make the relative position of two upper and lower U type mild steel damping pieces 21 of same U type mild steel attenuator 2 comparatively stable.
The implementation principle of the variable damping fabricated shear wall in the embodiment of the application is as follows: the upper and lower U-shaped soft steel damping parts 21 of the U-shaped soft steel damper 2 are connected through a plurality of connecting rods 22, and the connecting rods 22 are positioned on the inner side of the sheath pipe, so that the connecting rods 22 and the shear wall main body 1 can be kept in a relative separation state. When the shear wall main body 1 deforms due to the action of an earthquake, the upper U-shaped soft steel damping part 21 and the lower U-shaped soft steel damping part 21 of the U-shaped soft steel damper 2 generate large relative displacement, and the length of the connecting rod 22 is not easily influenced by the deformation of the shear wall main body 1, so that the connecting rod 22 can force the two U-shaped soft steel damping parts 21 with relative movement tendency to generate large deformation, and the buffer cushion plate 24 can perform an avoiding function on the deformed U-shaped soft steel damping parts 21 in the process of deformation; as the two U-shaped soft steel damping pieces 21 generate larger deformation, the U-shaped soft steel damping pieces 21 can dissipate more seismic energy, thereby being beneficial to improving the seismic performance of the assembled wall body. In addition, when the shear wall body 1 deforms, the spring tube 23 sleeved on the connecting rod 22 can elastically deform along with the shear wall body 1, which is beneficial to further dissipating energy applied to the shear wall body 1 due to an earthquake.
Example 2:
the present embodiment is different from embodiment 1 in that: the cushion pad 24 is a rubber plate 245, the peripheral sides of the rubber plate 245 are all provided with chamfers 246, and the included angle between the surface of the chamfers 246 and one side surface of the rubber plate 245 far away from the U-shaped soft steel damping piece 21 is an obtuse angle. The buffer backing plate 24 is made of the rubber plate 245, so that the installation process is simple and convenient. By arranging the chamfer 246 on the peripheral side of the rubber plate 245, a sharp corner part is not easily formed in the groove structure of the adaptive buffer plate formed in the shear wall body 1, so that the stress concentration in the shear wall body 1 is favorably reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a variable damping assembled shear force wall which characterized in that: the shear wall comprises a shear wall main body (1) and U-shaped mild steel dampers (2) buried in the shear wall main body (1), wherein the U-shaped mild steel dampers (2) comprise two U-shaped mild steel damping pieces (21), the two U-shaped mild steel damping pieces (21) are respectively positioned on the upper side and the lower side of the shear wall main body (1), a plurality of connecting rods (22) are connected between the two U-shaped mild steel damping pieces (21), and the connecting rods (22) are sleeved with sheath pipes; the inner side surface and the outer side surface of the U-shaped soft steel damping piece (21) are respectively provided with a buffer base plate (24).
2. The variable damping fabricated shear wall of claim 1, wherein: the buffer backing plate (24) is a rubber plate (245), the peripheral sides of the rubber plate (245) are provided with chamfers (246), the surfaces of the chamfers (246) are far away from the rubber plate (245), and the included angle of one side face of the U-shaped soft steel damping piece (21) is an obtuse angle.
3. The variable damping fabricated shear wall of claim 1, wherein: u type mild steel damping piece (21) include arc portion (211) and are located straight board portion (212) of arc portion (211) both sides, two straight board portion (212) are kept away from the edge of arc portion (211) is outwards bent respectively and is formed with hem portion (213), U type mild steel damping piece (21) pass through hem portion (213) with connecting rod (22) are connected.
4. A variable damping fabricated shear wall according to claim 3, wherein: the end of the connecting rod (22) penetrates through the corresponding flanging part (213), the flanging part (213) is provided with a through hole (214) matched with the connecting rod (22), and two side surfaces of the flanging part (213) are welded and fixed with the connecting rod (22) at the same time.
5. The variable damping fabricated shear wall of claim 1, wherein: the protective sleeve is a spring tube (23), and adjacent coils of the spring tube (23) are mutually and tightly abutted.
6. The variable damping fabricated shear wall of claim 5, wherein: and a coating interlayer (232) is arranged on the peripheral surface of the spring tube (23).
7. The variable damping fabricated shear wall of claim 5, wherein: the spring tube (23) comprises a plurality of spring unit tubes (231) which are sequentially arranged along the axial direction.
8. The variable damping fabricated shear wall of claim 7, wherein: be connected with location wire net (3) jointly between each connecting rod (22) of same U type mild steel attenuator (2), connecting rod (22) with location wire net (3) are worn to establish the connection, the inscribe circle diameter of the mesh of location wire net (3) is less than the external diameter of spring pipe (23), the upper and lower surface butt respectively of location wire net (3) spring unit pipe (231).
9. The variable damping fabricated shear wall of claim 1, wherein: buffer backing plate (24) include sheet steel (241), sheet steel (241) with be equipped with inlayer wire net (243) between U type mild steel damping piece (21), inlayer wire net (243) are wave structure, buffer backing plate (24) all side edges with be connected with sealing strip (242) between the surface of U type mild steel damping piece (21).
10. The fabricated shear wall with variable damping of claim 9, wherein: one side of the thin steel plate (241) close to the U-shaped mild steel damping piece (21) is set to be a frosted surface.
CN202210708882.1A 2022-06-22 2022-06-22 Assembled shear force wall of variable damping Active CN114856037B (en)

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