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CN-117449500-B - Assembled composite shear wall based on steel pipe structure

CN117449500BCN 117449500 BCN117449500 BCN 117449500BCN-117449500-B

Abstract

The application relates to an assembled composite shear wall based on a steel pipe structure, which comprises two superimposed plates and an energy-consumption steel pipe concrete member, wherein an accommodating cavity for accommodating the energy-consumption steel pipe concrete member is arranged between the superimposed plates, the energy-consumption steel pipe concrete member comprises symmetrically arranged steel pipe concrete components, each steel pipe concrete component comprises four inclined steel pipe concrete members connected end to end, each steel pipe concrete component is in a prismatic shape, and corners of each diamond steel pipe concrete component are abutted against a beam member. In the application, when the energy-consumption steel pipe concrete member bears the earthquake action, the eight inclined steel pipe concrete members of the energy-consumption steel pipe assembly are bent to consume part of earthquake energy together, and the weak position of the shear wall is reinforced by the energy-consumption steel pipe assembly with stronger bearing capacity, so that the conditions of damaging and exiting the operation of the part of the member of the shear wall are reduced, the members of the shear wall cooperate to resist the earthquake action, and the integral earthquake resistance of the shear wall is improved.

Inventors

  • WANG YAO
  • LIU ZHUQIN
  • ZHANG HENGCHUN
  • ZHANG FENG
  • WU JINGHUA
  • WANG JIADONG

Assignees

  • 中建海峡建设发展有限公司

Dates

Publication Date
20260505
Application Date
20231117

Claims (7)

  1. 1. A steel pipe structure-based fabricated composite shear wall is characterized by comprising two superimposed plates (1), a steel bar truss (2) and an energy-consumption steel pipe concrete member (3), wherein the steel bar truss (2) is arranged between the two superimposed plates (1) and fixedly connected with the superimposed plates (1), an accommodating cavity (6) for accommodating the energy-consumption steel pipe concrete member (3) is arranged between the superimposed plates (1), the superimposed plates (1) and the energy-consumption steel pipe concrete member (3) are abutted against a beam member (7), the energy-consumption steel pipe concrete member (3) comprises steel pipe concrete components (31) which are symmetrically communicated, the steel pipe concrete components (31) comprise four inclined steel pipe concrete pieces (311) which are connected end to end, the steel pipe concrete components (31) are diamond-shaped, corners of the steel pipe concrete components (31) are abutted against the beam member (7), the inclined steel pipe concrete pieces (311) comprise inclined inner cavities, the inclined steel pipe concrete pieces (4) are poured into the inclined steel pipe concrete pieces (4) and are further arranged in the vertical steel pipe concrete members (4), the vertical steel pipe concrete piece (4) is arranged on two sides of the energy-consumption steel pipe concrete member (3), two ends of the vertical steel pipe concrete piece (4) are fixedly connected with the beam member (7), the vertical steel pipe concrete piece (4) comprises a vertical steel pipe and concrete poured into an inner cavity of the vertical steel pipe, the vertical steel pipe of the vertical steel pipe concrete piece (4) is a round steel pipe, a plurality of threaded convex rings (11) are arranged on the periphery of the vertical steel pipe concrete piece (4), the threaded convex rings (11) are fixedly connected with the vertical steel pipe, a connecting piece is arranged on the steel pipe concrete assembly (31), the connecting piece is fixedly connected with an inclined steel pipe of the steel pipe concrete assembly (31), and a groove (13) meshed with the threaded convex rings (11) is formed in the connecting piece.
  2. 2. The steel pipe structure-based assembled composite shear wall body according to claim 1, wherein a first connecting piece (8) is arranged at the end part of the energy-consumption steel pipe concrete member (3), a second connecting piece (9) is embedded in the beam structure, the first connecting piece (8) is fixedly connected with the second connecting piece (9), and the laminated slab (1) is fixedly connected with the beam member (7).
  3. 3. The steel pipe structure-based fabricated composite shear wall body as claimed in claim 2, wherein the second connecting piece (9) is a high-strength shear screw, and the first connecting piece (8) is provided with a mounting hole (81) through which the second connecting piece (9) passes.
  4. 4. The fabricated composite shear wall based on a steel pipe structure according to claim 1, wherein the area of the horizontal cross section of the inclined concrete filled steel tube (311) increases gradually along the direction from the middle to the two sides of the shear wall.
  5. 5. The steel pipe structure-based fabricated composite shear wall body according to claim 1, wherein the steel pipe concrete component (31) further comprises ribbed connecting rods (16), the connecting rods (16) are arranged between oppositely arranged inclined steel pipe concrete pieces (311), and the connecting rods (16) are fixedly connected with the inclined steel pipes.
  6. 6. The steel pipe structure-based fabricated composite shear wall body according to claim 1, further comprising steel reinforced concrete end posts (5), wherein the steel reinforced concrete end posts (5) are arranged on two sides of the laminated slab (1), and the steel reinforced concrete end posts (5) are abutted against the laminated slab (1).
  7. 7. The steel pipe structure-based fabricated composite shear wall of claim 6, further comprising pegs, wherein the pegs are arranged on one side of the steel reinforced concrete end column (5) close to the energy-dissipating steel pipe concrete member (3), and the pegs are arranged at intervals along the length direction of the steel reinforced concrete end column (5).

Description

Assembled composite shear wall based on steel pipe structure Technical Field The application relates to the technical field of assembled buildings, in particular to an assembled composite shear wall based on a steel pipe structure. Background In high-rise buildings, the shear wall is mainly used for bearing wind load and horizontal load wall caused by horizontal earthquake action so as to reduce structural damage. The traditional concrete shear wall is easy to crack under the action of horizontal earthquake, and has the phenomenon of centralized damage and damage, and the damage of the shear wall is centralized and the middle area of the wall is built. The main reasons for the concentrated damage positions of the concrete shear wall are that the shear wall materials are not fully utilized, and the structural ductility of the concrete shear wall is long. In addition, the shear wall body is deformed out of plane after being pressed, so that the bottom of the concrete shear wall body structure is damaged, the rigidity degradation of the shear wall body structure is further enhanced, and the earthquake-resistant effect of the shear wall body is affected. In the prior art, shear walls can be divided into cast-in-place concrete shear walls and fabricated shear walls. Along with the development of society, the industrialization of novel buildings represented by assembled buildings is rapidly promoted, and the anti-seismic performance of assembled shear walls is increasingly focused. However, the existing fabricated shear wall structure has the same problems as the existing cast-in-situ shear wall structure. Namely, the shear wall is easy to crack under the action of horizontal earthquake, and the phenomenon of centralized damage and destruction exists, so that the earthquake resistance of the assembled shear wall is affected. Disclosure of Invention The application provides an assembled composite shear wall based on a steel pipe structure, which aims to improve the earthquake resistance of the assembled shear wall and reduce the damage of the shear wall. The application provides an assembled composite shear wall based on a steel pipe structure, which adopts the following technical scheme: The assembled composite shear wall based on the steel pipe structure comprises two superimposed sheets, a steel bar truss and an energy-consumption steel pipe concrete member, wherein the steel bar truss is arranged between the two superimposed sheets and is fixedly connected with the superimposed sheets; The energy-consumption steel pipe concrete member comprises steel pipe concrete components which are symmetrically communicated, the steel pipe concrete components comprise four inclined steel pipe concrete pieces which are connected end to end, the steel pipe concrete components are in a prismatic shape, corners of the prismatic shape are abutted against the beam members, and the inclined steel pipe concrete pieces comprise inclined steel pipes and concrete poured into inner cavities of the inclined steel pipes. By adopting the technical scheme, the energy-consumption steel pipe concrete components which are symmetrically arranged are communicated, so that four inclined steel pipe concrete components in the middle area of the energy-consumption steel pipe component are arranged in the middle of the shear wall in a crossing manner. The position distribution of the middle area of the energy-consumption concrete filled steel tube member is consistent with the stress distribution direction of the shear wall structure after the earthquake action. The positions of the energy-consumption concrete filled steel tube members are set based on the stress condition of the shear wall, so that the shear wall can play the roles of different members to the greatest extent, and the material utilization rate of the members and the earthquake resistance of the shear wall structure are improved. When the two ends of the shear wall are staggered due to the earthquake action, the wall of the shear wall has stronger lateral resistance. The concrete ductility is further increased by the constraint effect of the inclined steel pipe on the high-ductility concrete. The shear wall has the advantages of ensuring more uniform stress distribution and more uniform damage distribution of the shear wall, reducing the occurrence of damage and work withdrawal caused by the fact that the partial components of the shear wall bear larger stress, and improving the shock resistance of the whole process of the shear wall. And a cavity is also enclosed in the inclined steel pipe concrete part connected with each energy dissipation steel pipe concrete component end to end. Therefore, when the energy-consumption concrete-filled steel tube assembly bears earthquake operation, the cavity can improve the ductility of the energy-consumption concrete-filled steel tube assembly so as to improve the overall stability of the shear wall. The technical scheme has the working princip