Anti-buckling energy consumption steel plate shear wall with concealed brace

Abstract

The invention relates to an anti-buckling energy consumption steel plate shear wall with a concealed brace. The shear wall comprises an infilled energy consumption steel plate, the concealed brace and a concrete plate. The infilled energy consumption steel plate and the concealed brace are connected into a whole and jointly work, wherein the concealed brace is welded into the position, being applied with large centralized force, of the infilled energy consumption steel plate, and therefore the infilled energy consumption steel plate and the concealed brace jointly resist the large centralized force; an isolating layer is arranged between the infilled energy consumption steel plate and the concrete plate, and therefore the infilled energy consumption steel plate and the concrete plate can relatively move; an isolating layer is arranged at the contact position of the outer surface of the concealed brace and the concrete plate, and therefore the concealed brace and the concrete plate can relatively move; a proper amount of plastic foam is filled into the contact position of the inner surface of the concealed brace and the concrete plate, and therefore the concrete plate can be prevented from being squeezed and damaged in the deformation process. The shear wall has the advantages of high side lurch resistance, good ductility and outstanding energy consumption capacity of an anti-buckling restrained brace and an anti-buckling steel plate wall, and can solve the problem of performance degeneration caused by buckling of edges of a steel plate wall.

Description

technical field [0001] The invention belongs to the technical field of structural engineering, and in particular relates to a force-bearing member combined with a composite steel plate wall and a support. Background technique [0002] BRB (Buckling Restrained Brace) is a very effective energy-dissipating member with very stable hysteretic characteristics and good low-cycle fatigue characteristics, which can greatly improve the lateral stiffness and bearing capacity of the frame structure. Due to the accumulation of earthquake action from top to bottom, the bottom of the frame structure often needs a BRB with a huge cross-sectional size. After the thick wall is outsourced, the building space is limited, which also leads to the complicated design of the beam-column-bracing joints. , Construction is difficult. [0003] Buckling-resistant steel plate wall, as a new type of lateral force-resistant member with excellent performance, can avoid the above problems, but for figure 1...

AI Technical Summary

Problems solved by technology

Due to the accumulation of earthquake action from top to bottom, the bottom of the frame structure often needs a BRB with a huge cross-sectional size. After the thick wall is outsourced, the building space is limited, which also leads to the complicated design of the beam-column-bracing joints. , construction difficulties

[0003] Buckling-resistant steel plate wall, as a new type of lateral force-resistant member with excellent performance, can avoid the above problems, but for figure 1 In the working conditions shown, the huge concentrated force from the upper support can easily lead to buckling of the steel plate wall corners, resulting in the performance degradation of the steel plate wall; in addition, in order to avoid additional bending moments to the column and to facilitate the adjustment of performance parameters, The steel plate wall is often only connected to the beam. Under the action of the overturning moment, the corner of the wall is prone to stress concentration and lead to the failure of out-of-plane restraints, which in turn leads to buckling and performance degradation of the inner filling steel plate

[0004] There is currently no direct, targeted solution for this

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