Coupled shearing force wall energy-dissipation beam-coupled steel plate damper and its using method

Abstract

The invention discloses a damper and the application method, in particular to a braced shear wall coupling beam energy dissipating damper and the application method. The damper comprises a mutual connection plastic yield energy dissipating work area and a keeping approximate rigidity partial fixing area, two or more than two column strip-shaped holes are arranged in work area; non-sharp corner processing is adopted at the upper ends of the strip-shaped hole. The application method of the damper for shear wall coupling beam energy dissipating comprises: the reinforced concrete coupling beam isreplaced by one or more than one damper; or one or more damper is adhered to the reinforced concrete coupling beam and is positioned at the coupling beam of the shear wall. Each damper work area is provided with anti out-plane instability bolt to prevent the out-plane of each damper from instability; each damper partial fixing area is pre-stretched by high strength bolt, or each damper is welded into a whole body by cap cover plate.

Description

technical field [0001] The invention discloses a damper and a using method thereof, in particular to a damper which enhances energy consumption of connecting beams of a shear wall with connected limbs and a using method thereof. Background technique [0002] The shear wall structure with connected limbs is a commonly used structural form of high-rise building structures. Its working state and failure mode under earthquake action are closely related to the stiffness and bearing capacity of the connecting beam relative to the shear wall limb. Structural ductility design requires following the principles of "strong limbs and weak beams" and "strong shear and weak bending", but there are often contradictions in ensuring the stiffness and ductility of coupling beams. Therefore, how to satisfy (1) that the joint beams and the connected shear wall members work together to provide sufficient lateral stiffness for the connected shear wall structure under normal use and frequent earth...

AI Technical Summary

Problems solved by technology

[0004] but with Figure 21 , attached Figure 22 The dampers shown are all sheared on the short side of the rectangular profile steel plate. If the profile is changed to make the sheared side longer, its lateral stiffness and energy dissipation capacity will be greatly reduced, and the center of the X-shaped steel plate develops plasticity. The area is narrow, the plastic area cannot be fully developed, and failure will occur earlier in the process of greater external force and plastic development

In addition, since the connecting bolt holes are directly arranged on the steel plate, the mild steel will be deformed during the stress process, which will affect the energy dissipation effect

attached Figure 22 , attached Figure 23 If the damper shown is made with a very long sheared edge, the fabrication and design will be slightly complicated. If there is an in-plane bending moment at both ends of the damper, it is prone to local instability and affects the energy dissipation effect

attached Figure 20 , attached Figure 21 , attached Figure 22 And attached Figure 23 None of the dampers described take into account the shape of the damper suitable for the construction of the coupling beam and the special connection to the reinforced concrete coupling beam is not considered

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