Search

CN-224228028-U - Negative poisson ratio cell perforating member capable of being assembled and installed and steel plate shear wall

CN224228028UCN 224228028 UCN224228028 UCN 224228028UCN-224228028-U

Abstract

The utility model discloses a cell open pore member with a negative poisson ratio and a steel plate shear wall which can be assembled and installed, and belongs to the technical field of house anti-seismic shock absorption structures in civil engineering; the cell opening component with the negative poisson ratio comprises a component body, wherein first energy absorption cells and second energy absorption cells are densely arranged on the component body, the first energy absorption cells and the second energy absorption cells are concave triangular holes penetrating through the component body, and the corners inside the concave triangular holes are in arc transition. The steel plate shear wall comprises a negative poisson ratio cell opening member, a cross beam and an upright post, wherein the cross beam and the upright post enclose a supporting frame, and the negative poisson ratio cell opening member is arranged in the supporting frame. According to the utility model, through an accurate negative Poisson ratio cell perforating technology, the structures of the negative Poisson ratio cell perforating component and the steel plate shear wall are effectively improved, the structure is simple to set, and energy brought by an earthquake and the like can be better absorbed.

Inventors

  • WANG XIANJIE
  • LI YUAO
  • CUI XINRU
  • CHEN YONGDANG

Assignees

  • 云南大学

Dates

Publication Date
20260512
Application Date
20250609

Claims (9)

  1. 1. The cell opening component with the negative Poisson ratio capable of being assembled and installed is characterized by comprising a component body (1), wherein first energy absorption cells (2) and second energy absorption cells (3) are densely arranged on the component body (1), the first energy absorption cells (2) and the second energy absorption cells (3) are concave triangle holes penetrating through the component body (1), the corners inside the concave triangle holes are in arc transition, and the first energy absorption cells (2) and the second energy absorption cells (3) are reversely arranged.
  2. 2. The cell opening member with the negative poisson ratio according to claim 1, wherein the first energy absorbing cells (2) and the second energy absorbing cells (3) are respectively distributed along a transverse array of the member body (1) to form a first energy absorbing row and a second energy absorbing row respectively, the first energy absorbing row and the second energy absorbing row are alternately arranged along the longitudinal direction of the member body (1), and the first energy absorbing cells (2) and the second energy absorbing cells (3) of the adjacent first energy absorbing row and second energy absorbing row are staggered.
  3. 3. The cell opening member with negative poisson ratio according to claim 2, wherein the first energy absorbing cell (2) is an isosceles triangle placed horizontally, the bottom side is concave, an angle formed by the concave is an obtuse angle, and the vertex of the concave angle is positioned on an angular bisector of the vertex angle of the first energy absorbing cell (2).
  4. 4. A negative poisson ratio cell opening member according to claim 3, characterized in that the member body (1) is a rectangular plate and the rectangular plate is of solid or hollow construction.
  5. 5. The cell perforating member with the negative poisson ratio according to claim 4, further comprising a buckling joint (4) and a clamping block (5), wherein the buckling joint (4) and the clamping block (5) are respectively arranged on the left side and the right side of the member body (1), a clamping groove is formed in the clamping block (5), and the buckling joint (4) can be clamped into the clamping groove; the buckling joint (4) and the clamping groove are of the same T-shaped structure.
  6. 6. The cell opening member with negative poisson ratio according to claim 5, wherein a plurality of buckling joints (4) and clamping blocks (5) are respectively arranged on the left side and the right side of the member body (1), the buckling joints (4) and the clamping blocks (5) on the two sides are arranged in a one-to-one correspondence manner, and the distance between every two clamping blocks (5) is larger than the length of the buckling joint (4).
  7. 7. The steel plate shear wall is characterized by comprising the negative poisson ratio cell opening component as claimed in any one of claims 1-6, and further comprising a cross beam (6) and a stand column (7), wherein the cross beam (6) and the stand column (7) enclose a supporting frame, and the negative poisson ratio cell opening component is arranged in the supporting frame.
  8. 8. The steel plate shear wall according to claim 7, further comprising a reserved piece (8) and a flattening plate (9), wherein a plurality of reserved pieces (8) are respectively arranged on the cross beam (6) and the upright post (7), and the reserved pieces (8) and the cell opening members with negative Poisson's ratio are fixedly connected through the flattening plate (9).
  9. 9. The steel plate shear wall according to claim 8, wherein the cross beams (6) and the upright posts (7) are respectively provided with dense reserved pieces (8) along the length direction, and the screeds (9) adopt rectangular plates and wrap the reserved pieces (8) from one side.

Description

Negative poisson ratio cell perforating member capable of being assembled and installed and steel plate shear wall Technical Field The utility model relates to a steel plate member and a steel plate shear wall, in particular to a combined-installable negative poisson ratio cell perforating member and a steel plate shear wall, belonging to the technical field of house anti-seismic shock-absorbing structures in civil engineering. Background Shear walls are a common type of seismic component and structural element, typically composed of reinforced and concrete materials, for resisting horizontal forces and dynamic effects from earthquakes and strong winds. The shear wall is arranged in the building, so that the shock resistance of the structure can be obviously improved, and the stability of the structure is enhanced, and therefore, the shear wall plays an important role in the building. Traditional shear wall designs rely primarily on their stiffness and strength to resist lateral loads or horizontal effects. In modern buildings, steel plate shear walls are widely applied to various building structures due to the advantages of good side-standing resistance, high anti-seismic bearing capacity, relatively convenient construction and the like. The negative poisson ratio steel plate shear wall is a novel steel plate shear wall structure, and is mainly made of negative poisson ratio steel plates, and one key characteristic of the negative poisson ratio steel plate is that the negative poisson ratio steel plate shear wall can show physical reaction which is quite different from that of a conventional steel plate shear wall when the negative poisson ratio steel plate shear wall is subjected to external force. When a negative poisson's ratio material or structure is stretched, it "expands" rather than contracts in a direction perpendicular to the direction of stretching, i.e., the transverse dimension increases and the longitudinal dimension also increases, which is in stark contrast to the behavior of conventional materials or structures. Compared with the positive poisson ratio structure, the negative poisson ratio structure has the advantages of more excellent shearing resistance, fracture resistance and energy consumption performance, flatter hysteresis curve and the like. In view of the unique mechanical property and deformability of the negative poisson ratio material, the material can be used in structural members so as to effectively absorb and dissipate earthquake energy under the earthquake action, reduce the dynamic response of a building and improve the earthquake resistance of the structure. In addition, the negative poisson ratio structure also has good self-resetting capability, namely, after external load is applied and removed, the structure can be restored to the original state, so that permanent residual deformation is avoided, and the long-term stability, restorability and collapse resistance of the building are improved. Therefore, the negative poisson ratio steel plate shear wall has great market potential. The negative poisson ratio steel plate shear wall is generally formed by a negative poisson ratio member and an edge member, and the current negative poisson ratio steel plate shear wall is disclosed as a Chinese patent application with the patent name of 202311260251.9 and the negative poisson ratio composite steel plate shear wall, which is required to be provided with a multi-layer structure, is complex in structure arrangement and has high cost. Disclosure of Invention In order to overcome the defects in the prior art and simplify the negative poisson ratio shear wall structure, the utility model provides a combined-installable cell opening component with negative poisson ratio and a steel plate shear wall. The technical scheme includes that the negative poisson ratio cell perforating component capable of being installed in a combined mode is designed, the negative poisson ratio cell perforating component comprises a component body, first energy absorbing cells and second energy absorbing cells are densely arranged on the component body, the first energy absorbing cells and the second energy absorbing cells are concave triangular holes penetrating through the component body, the inner corners of the concave triangular holes are in arc transition, and the first energy absorbing cells and the second energy absorbing cells are reversely arranged. The concave triangular hole structure design endows the member with negative poisson ratio characteristics, and the shearing resistance, indentation resistance and fracture resistance are obviously improved. The combination of cells in the reverse arrangement may further optimize the energy absorption efficiency. The open pore design reduces the weight of the component, reduces stress concentration by arc transition, and prolongs the fatigue life. By adjusting parameters such as cell size, arrangement density and the like, the requirements of differ