Multilayer self anti-buckling steel plate shear wall

Abstract

The invention relates to a multilayer self anti-buckling steel plate shear wall comprising multilayer oblique slotted steel plates, and a friction reducing layer is arranged between adjacent steel plates; the oblique slots of the steel plates on two sides of a random friction reducing layer are different; fastening pieces penetrate the steel plates and the friction reducing layers so as to combine the steel plates and the friction reducing layers, thus forming the wall body; the wall body is connected with connecting plates fixed on frame poles and / or frame beams through fastening pieces; inter-slot plate strips are arranged between the oblique slots; under reciprocating horizontal earthquake load effect, the inter-slot plate strips of same direction are respectively under unidirectional pulled or pressed states; the rigidity of the pulled oblique inter-slot plate strips can provide support for pressed inter-slot plate strips of other layers, thus limiting buckling, and realizing self anti buckling.

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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