CN113152730B - Assembled composite energy consumption shear wall - Google Patents

Assembled composite energy consumption shear wall Download PDF

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Publication number
CN113152730B
CN113152730B CN202110265188.2A CN202110265188A CN113152730B CN 113152730 B CN113152730 B CN 113152730B CN 202110265188 A CN202110265188 A CN 202110265188A CN 113152730 B CN113152730 B CN 113152730B
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China
Prior art keywords
shear wall
rod piece
shape memory
memory alloy
alloy rod
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CN202110265188.2A
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Chinese (zh)
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CN113152730A (en
Inventor
徐丽
杨正熙
朱卫斌
邓成浩
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Guangzhou University
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Guangzhou University
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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
    • 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
    • E04B1/38Connections for building structures in general
    • 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
    • E04B1/38Connections for building structures in general
    • E04B1/61Connections for building structures in general of slab-shaped building elements with each other
    • 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
    • E04B1/38Connections for building structures in general
    • E04B1/61Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/6187Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means on top and/or bottom surfaces of the slabs
    • 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
    • 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

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

Abstract

The invention relates to an assembled composite energy consumption shear wall which comprises two shear wall components, wherein a plurality of shock isolation supports are uniformly arranged between the two shear wall components, one end of each shock isolation support is connected with one shear wall component, the other end of each shock isolation support is connected with the other shear wall component, at least one shape memory alloy rod piece is arranged between two adjacent shock isolation supports, one end of each shape memory alloy rod piece is connected with one shear wall component through a rod piece connecting piece, and the other end of each shape memory alloy rod piece is connected with the other shear wall component through a rod piece connecting piece. According to the invention, the vibration isolation support and the shape memory alloy rod piece are arranged between the two shear wall components, so that the ductility and the energy consumption capacity of the whole assembled shear wall structure can be improved, the energy consumption and shock absorption performance of a high-rise assembled building can be enhanced, and the shear wall components and the energy consumption device are reset after energy consumption by utilizing the self-reset characteristic of the shape memory alloy rod piece.

Description

Assembled composite energy consumption shear wall
Technical Field
The invention relates to the technical field of energy consumption and shock absorption of building structures, in particular to an assembled composite energy consumption shear wall.
Background
In recent years, construction management departments in countries popularize building industrialization, that is, assembly type buildings, in most regions of the country, and the increasing social demands are satisfied by improving the efficiency of infrastructure construction.
With the shortage of urban land resources, most of buildings under construction or construction are high-rise buildings in order to improve the utilization rate of land resources. In order to meet the structural safety requirements of high-rise buildings, the fabricated shear wall structure is required. Compared with the cast-in-situ shear wall structure under the same condition, the integrity, rigidity and deformability of the common fabricated precast shear wall are poorer, and the common fabricated shear wall structure is required to have larger shear wall thickness in the region with the intensity of fortification of more than medium, so that the dead weight of the structure is increased, and the structure cannot necessarily show satisfactory earthquake resistance under the actual earthquake action. In addition, in the current shear wall with the energy consumption device, the energy consumption device is fully embedded in the shear wall or is arranged at a hidden part, so that the daily maintenance of the energy consumption device is inconvenient, the energy consumption device has residual deformation after energy consumption, and meanwhile, the maintenance and replacement of the energy consumption device are difficult or even impossible to maintain, which are all problems to be solved urgently.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the invention aims at: the utility model provides an assembled composite energy dissipation shear force wall, through setting up shock insulation support and shape memory alloy member between two shear force wall components, can improve the holistic ductility and the power consumption ability of assembled shear force wall structure, the energy consumption shock attenuation performance of reinforcing high-rise assembled building reduces the dynamic response of high-rise assembled building under the seismic action, utilizes shape memory alloy member's self-reset characteristic simultaneously, makes shear force wall component and power consumption device reset after the power consumption.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides an assembled compound power consumption shear force wall, including two shear force wall components, evenly be provided with a plurality of shock insulation supports between two shear force wall components, the one end and the one shear force wall component of shock insulation support are connected, the other end and the other shear force wall component of shock insulation support are connected, be provided with a shape memory alloy member at least between two adjacent shock insulation supports, one end of shape memory alloy member passes through the member connecting piece and is connected with a shear force wall component, the other end of shape memory alloy member passes through the member connecting piece and is connected with another shear force wall component, shape memory alloy member between two shear force wall components is the ripple form and distributes.
Further, the shock insulation support comprises a shock insulation rubber pad and end connecting plates connected to two ends of the shock insulation rubber pad, wherein the end connecting plates at one end of the shock insulation support are connected with one shear wall member through bolts, and the end connecting plates at the other end of the shock insulation support are connected with the other shear wall member through bolts.
Further, a plurality of screws are pre-buried in each of the two shear wall components, and the screws in the two shear wall components respectively penetrate through end connecting plates at two ends of the shock insulation support and are fixed with the end connecting plates at two ends of the shock insulation support through nuts.
Further, a plurality of rod piece connecting pieces are pre-embedded in the two shear wall components, one end of the shape memory alloy rod piece penetrates through the rod piece connecting piece in one shear wall component and is fixed with the rod piece connecting piece in the shear wall component through a nut; the other end of the shape memory alloy rod passes through a rod connecting piece in another shear wall member and is fixed with the rod connecting piece in the shear wall member through a nut.
Further, a friction pad is arranged at the fixed part of the shape memory alloy rod piece and the rod piece connecting piece.
Further, the included angle between the shape memory alloy rod piece and the horizontal plane is 16 degrees.
Further, a pin is arranged at one end of the rod piece connecting piece, which is pre-buried in the shear wall component.
In general, the invention has the following advantages:
1. According to the invention, the shock insulation support and the shape memory alloy rod piece are arranged between the two shear wall components, so that on one hand, the effective transmission of the vertical load of the structure can be ensured, and on the other hand, the assembled shear wall system has certain lateral resistance, and meanwhile, the energy input laterally can be effectively dissipated through the cooperative work of the shock insulation support and the shape memory alloy rod piece; and on the premise of ensuring that the whole structure has a certain bearing capacity, the ductility and the energy consumption capacity of the whole assembly type shear wall structure are improved, and meanwhile, the self-resetting characteristic of the shape memory alloy rod piece is utilized, so that the shear wall component and the energy consumption device are reset after energy consumption.
2. The invention has simple structure, convenient assembly, short construction time, convenient and simple routine maintenance, can not fail due to the fact that routine maintenance is not in place, can reduce the size of the needed shear wall component, improves the space utilization rate of the building to a certain extent, and creates better social benefit.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the structure of the shock-insulating support of the present invention.
FIG. 3 is a schematic view of the connection of the shape memory alloy rod and the rod connector according to the present invention.
Wherein: the shear wall comprises a shear wall member 1, a shock insulation support 2, a shock insulation rubber pad 2-1, an end connecting plate 2-2, a shape memory alloy rod piece 3, a rod piece connecting piece 4, a pin 4-1 and a friction gasket 5.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
As shown in FIG. 1, the assembled composite energy dissipation shear wall comprises two shear wall components, a plurality of shock isolation supports are uniformly arranged between the two shear wall components, one end of each shock isolation support is connected with one shear wall component, the other end of each shock isolation support is connected with the other shear wall component, at least one shape memory alloy rod piece is arranged between every two adjacent shock isolation supports, one end of each shape memory alloy rod piece is connected with one shear wall component through a rod piece connecting piece, the other end of each shape memory alloy rod piece is connected with the other shear wall component through a rod piece connecting piece, and the shape memory alloy rods between the two shear wall components are distributed in a corrugated shape.
As shown in fig. 1, in the present embodiment, three shock-insulation supports are uniformly provided between two shear wall members, and two shape memory alloy bars are provided between two adjacent shock-insulation supports. When the upper shear wall member and the lower shear wall member are subjected to relative displacement, the shape memory alloy rod piece is made to be in reciprocating tension or compression, and meanwhile, the shock insulation support is subjected to horizontal reciprocating displacement, and the energy input by the earthquake can be dissipated through horizontal shearing deformation of the shock insulation support, so that the effects of energy consumption and shock absorption are achieved.
As shown in fig. 1 and 2, the shock insulation support includes a shock insulation rubber pad and end connection plates connected to both ends of the shock insulation rubber pad, the end connection plate at one end of the shock insulation support is connected with one shear wall member through a bolt, and the end connection plate at the other end of the shock insulation support is connected with the other shear wall member through a bolt. In this embodiment, a plurality of screws are pre-buried in each of the two shear wall members, and the screws in the two shear wall members respectively pass through the end connection plates at the two ends of the shock insulation support and are fixed with the end connection plates at the two ends of the shock insulation support through nuts.
As shown in fig. 1 and 3, a plurality of rod connection pieces are pre-embedded in two shear wall members, one end of a shape memory alloy rod passes through the rod connection piece in one shear wall member and is fixed with the rod connection piece in the shear wall member through a nut; the other end of the shape memory alloy rod passes through a rod connecting piece in another shear wall member and is fixed with the rod connecting piece in the shear wall member through a nut.
Because the rod piece connecting piece is pre-buried in the shear wall component, the shear wall component can keep the overall stability when the shape memory alloy rod piece takes place to warp, and the ability that the shape memory alloy rod piece bears horizontal shearing force and restricts the horizontal displacement of shear wall component through warp is fully exerted to guarantee that the shock insulation support still can keep stable in the deformation process that takes place horizontal shearing, and does not lose power consumption ability because of warp too big.
As shown in fig. 3, a pin is provided at one end of the rod connection member embedded in the shear wall member. The pin is arranged to strengthen the connection between the rod piece connecting piece and the shear wall component, so that the connection stability between the rod piece connecting piece and the shear wall component is improved.
As shown in FIG. 3, a friction pad is provided at the fixing location of the shape memory alloy rod and the rod connector. The friction gasket is arranged to increase the maximum value of friction sliding at the fixed position, so that the shape memory alloy rod piece is prevented from friction sliding under the action of an earthquake, and the connection is invalid. The included angle between the shape memory alloy rod piece and the horizontal plane is 16 degrees.
The working principle of the invention is as follows:
The invention is applied to high-rise assembled buildings, and when an earthquake occurs, two shear wall members of the building structure are horizontally and relatively displaced. Because the two ends of the shape memory alloy rod piece are respectively connected with the two shear wall members through the rod piece connecting pieces, the end connecting plates at the two ends of the shock insulation support are respectively connected with the two shear wall members through bolts, when the two shear wall members generate relative horizontal displacement, the shock insulation support generates small-amplitude horizontal displacement, meanwhile, the shape memory alloy rod piece slows down the horizontal displacement of the shock insulation support and limits the maximum horizontal displacement of the shock insulation support, and the shape memory alloy rod piece can be repeatedly pulled or pressed while slowing down the reciprocating horizontal displacement of the shock insulation support.
The shape memory alloy rod piece and the shock insulation support have certain energy consumption capability, and under the action of the same horizontal force, the deformation of the shape memory alloy rod piece is smaller than that of the shock insulation support, and the maximum deformation of the shape memory alloy rod piece is smaller than that of the shock insulation support, so that the shape memory alloy rod piece can limit the shock insulation support to work in the allowable maximum displacement range, and the stability and the normal work of the shock insulation support are ensured.
The energy consumption capacity of the shape memory alloy rod piece can be amplified by reasonably setting the diameter of the shape memory alloy rod piece, the size of a nut adopted by a connecting screw, the thickness of a friction gasket and the like; the larger the diameter of the shape memory alloy rod piece is, the larger the lateral shearing resistance is, and the capacity of limiting the displacement of the shear wall member is improved; by applying a certain pretightening force to the shape memory alloy rod piece, the shape memory alloy rod piece can generate the damping effect of a large damper, and the manufacturing cost is saved.
In general, the invention can ensure the effective transmission of the vertical load of the structure on one hand and the certain lateral resistance of the assembled shear wall system on the other hand by arranging the shock insulation support and the shape memory alloy rod pieces between the two shear wall components, and can effectively dissipate the laterally input energy through the cooperative work of the shock insulation support and the shape memory alloy rod pieces; and on the premise of ensuring that the whole structure has a certain bearing capacity, the ductility and the energy consumption capacity of the whole assembly type shear wall structure are improved, and meanwhile, the self-resetting characteristic of the shape memory alloy rod piece is utilized to reset the shear wall component and the energy consumption device after energy consumption. The invention has simple structure, convenient assembly, short construction time, convenient and simple routine maintenance, can not fail due to the fact that routine maintenance is not in place, can reduce the size of the needed shear wall component, improves the space utilization rate of the building to a certain extent, and creates better social benefit.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.

Claims (5)

1. The utility model provides an assembled compound power consumption shear force wall which characterized in that: the shear wall comprises two shear wall components, wherein a plurality of shock insulation supports are uniformly arranged between the two shear wall components, one end of each shock insulation support is connected with one shear wall component, the other end of each shock insulation support is connected with the other shear wall component, at least one shape memory alloy rod piece is arranged between two adjacent shock insulation supports, one end of each shape memory alloy rod piece is connected with one shear wall component through a rod piece connecting piece, the other end of each shape memory alloy rod piece is connected with the other shear wall component through a rod piece connecting piece, and the shape memory alloy rod pieces between the two shear wall components are distributed in a corrugated shape;
a plurality of rod piece connecting pieces are pre-embedded in the two shear wall components, one end of the shape memory alloy rod piece passes through the rod piece connecting piece in one shear wall component and is fixed with the rod piece connecting piece in the shear wall component through a nut; the other end of the shape memory alloy rod piece passes through a rod piece connecting piece in another shear wall member and is fixed with the rod piece connecting piece in the shear wall member through a nut;
The vibration isolation support comprises a vibration isolation rubber pad and end connecting plates connected to two ends of the vibration isolation rubber pad, wherein the end connecting plates at one end of the vibration isolation support are connected with one shear wall member through bolts, and the end connecting plates at the other end of the vibration isolation support are connected with the other shear wall member through bolts.
2. The fabricated composite energy-dissipating shear wall of claim 1, wherein: the two shear wall components are embedded with a plurality of screws, and the screws in the two shear wall components respectively penetrate through end connecting plates at two ends of the shock insulation support and are fixed with the end connecting plates at two ends of the shock insulation support through nuts.
3. The fabricated composite energy-dissipating shear wall of claim 1, wherein: a friction pad is arranged at the fixed part of the shape memory alloy rod piece and the rod piece connecting piece.
4. The fabricated composite energy-dissipating shear wall of claim 1, wherein: the included angle between the shape memory alloy rod piece and the horizontal plane is 16 degrees.
5. The fabricated composite energy-dissipating shear wall of claim 1, wherein: the rod piece connecting piece is pre-buried in the shearing force one end of the wall member is provided with a pin.
CN202110265188.2A 2021-03-11 2021-03-11 Assembled composite energy consumption shear wall Active CN113152730B (en)

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Application Number Priority Date Filing Date Title
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CN113152730B true CN113152730B (en) 2024-08-16

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114482315B (en) * 2022-01-21 2022-09-20 四川大学 Multifunctional self-resetting shock insulation support
CN114703739B (en) * 2022-03-18 2022-12-20 西南交通大学 Shock isolation device for preventing fault from damaging bridge tower

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111395568A (en) * 2020-04-26 2020-07-10 辽宁工程技术大学 Replaceable shape memory alloy composite shock insulation support
CN215406706U (en) * 2021-03-11 2022-01-04 广州大学 Assembled composite energy dissipation shear wall

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11136777B2 (en) * 2017-09-19 2021-10-05 University Of Manitoba Seismic performance improvement of FRP-RC structures
CN107574945B (en) * 2017-10-09 2019-04-16 上海市建筑科学研究院 Self-resetting swinging wall component based on shape memory alloy bar material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111395568A (en) * 2020-04-26 2020-07-10 辽宁工程技术大学 Replaceable shape memory alloy composite shock insulation support
CN215406706U (en) * 2021-03-11 2022-01-04 广州大学 Assembled composite energy dissipation shear wall

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