A multi-layer self-buckling-resistant steel plate shear wall

Abstract

The invention relates to a multi-layer self-buckling steel plate shear wall, comprising: multi-layer steel plates with oblique grooves, friction-reducing layers are arranged between adjacent steel plates; The direction of the groove is opposite; the fastener penetrates through the steel plate and the anti-friction layer to fasten all the steel plates and the anti-friction layer into a wall; the wall is also fixedly connected to the frame column and / or frame beam through the fastener The connecting plate on the top is connected; between the inclined grooves is the inter-groove plate strip. Under the action of reciprocating horizontal earthquake load, the inter-groove plate strips in the same direction are respectively in the state of unidirectional tension or compression. The stiffness of the inter-strips provides support for the inter-slabs of the other layers of compression grooves, restricts their buckling, and achieves self-buckling prevention.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a multi-layer self-buckling-proof steel plate shear wall. Background technique [0002] Steel plate shear walls have good ductility, large lateral stiffness and energy dissipation capacity, and are widely used in high-rise and super high-rise buildings in high-intensity areas at home and abroad. Early steel plate shear walls used elastic buckling load as the limit state of bearing capacity, resulting in very thick steel plates or very dense stiffeners. On the one hand, it causes material waste, and on the other hand, the energy dissipation capacity of steel after plastic yielding cannot be utilized. [0003] While reducing the thickness of the steel plate to utilize its energy dissipation capacity after plastic yielding, it also reduces the buckling capacity of the steel plate under oblique pressure. The local buckling of the steel plate will lead to local damage such as...

AI Technical Summary

Problems solved by technology

However, usually the whole prefabricated concrete cover slab has a large area and is heavy, and it is easy to crack during transportation and installation, and the construction is inconvenient.

There are also buckling-resistant steel plate shear walls with bolted horizontal or oblique stiffeners, but the slippage of the bolted stiffeners will generate huge noise, causing users to worry about structural safety and psychological shadow

At the same time, under the action of reciprocating horizontal load, the whole steel plate shear wall has complex stress state and various failure modes, so it is impossible to accurately judge its yield load and energy dissipation capacity

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