An energy-dissipating shear wall with limbs

Abstract

The invention discloses an energy dissipation coupled shear wall and belongs to the technical field of building structures. The energy dissipation coupled shear wall is mainly composed of prefabricated shear wall boards, spiral double-order coupling beams and steel rib connecting columns, wherein upper and lower adjacent prefabricated shear wall boards are self-coupled to form shear wall limb units, the shear wall limb units are connected through the steel rib connecting columns to form shear wall limbs, and the shear wall limbs are connected through the steel rib connecting columns to form the energy dissipation coupled shear wall; each prefabricated shear wall board comprises a shear wall board frame, a first web plate, a second web plate, a protective anti-impact assembly and high-strength anti-impact concrete; each spiral double-order coupling beam comprises a first spiral arm, a second spiral arm, a connecting short limb, a first connector, a second connector and an elastic protective drum; and each steel rib connecting column comprises a double-T horizontal type groove structure, a double-T corner type groove structure and a three-T vertical type groove structure. In conclusion, the energy dissipation coupled shear wall disclosed by the invention is free in structural design and high in impact resistance.

Description

technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to an energy-dissipating shear wall with limbs. Background technique [0002] Most of the reinforced concrete (RC) high-rise buildings in my country adopt the shear wall structure system, the frame-shear wall structure system, and the frame-core tube structure system. The core tube composed of the combined limb wall often bears most of the base shear force and most of the earthquake overturning bending moment of the high-rise building structure. At present, the most widely used is still the RC joint wall. Under the reciprocating action of the earthquake, the RC coupling beam first yields to dissipate the seismic energy, and the bottom of the rear wall yields to form a plastic hinge. During the Wenchuan earthquake in 2008, the combined limb wall designed in GB50011-2001 "Code for Seismic Design of Buildings" showed good seismic performance, and there were also...

AI Technical Summary

Problems solved by technology

[0004] Although the steel-concrete composite structural system currently used in high-rise buildings can achieve relatively large lateral stiffness relatively economically, on the one hand, its performance and damage mechanism are complex, which is not conducive to designers' grasp, and it is difficult to form damage controllable and earthquake recoverable concept of architecture

At present, there are some reports on the application of some energy-dissipating and shock-absorbing products to the steel-concrete composite structure system, but generally by replacing a small amount of concrete coupling beams in the original structure, replacing a small amount of ordinary supports with buckling restraint supports, or adding a small amount of viscous dampers The design scheme, but did not form a proprietary structural system

Moreover, most of the existing energy dissipation and shock absorption products applied to steel-concrete composite structures are rigid connection frames. Although the rigid connection frame can provide greater redundancy for the structure, the rigid connection frame leads to complex on-site construction, and the construction cost and The time is greatly increased; while the metal energy dissipation and shock absorption products have very good fatigue performance and ductility, the excessive redundancy of the frame structure leads to the performance of the metal energy dissipation and shock absorption products not being fully utilized, and the structural design is too conservative and Uneconomical

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