A kind of steel plate shear wall with two-way arrangement of multi-layer oblique grooves

Abstract

The invention relates to a multi-layer obliquely grooved two-way arrangement steel plate shear wall, which comprises multi-layer obliquely grooved steel plates, edge frames and polytetrafluoroethylene plates arranged between different steel plates. Wherein, the chute directions of two adjacent layers of steel plates are different, and the total thickness of the steel plates with different chute directions is the same. The number of layers of the steel plate is an odd number greater than 1. The connecting plate and the edge frame are fixed by welding. The thickness of the polytetrafluoroethylene plate is not more than 1mm. The surroundings of the steel plate shear wall and the connecting plate on the edge frame are connected in shear on one side by high-strength bolts, which is convenient for maintenance and post-disaster repair and replacement. Each column of oblique slots in the steel plate of the shear wall is a discontinuous slot, and the inclination direction of each column of oblique slots in steel plates with different aspect ratios is parallel to the diagonal direction of the steel plate.

Description

technical field [0001] The invention relates to the field of structural engineering, in particular to a multi-layer obliquely slotted bidirectionally arranged 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. In the early steel plate shear walls, the elastic buckling load was used as the limit state of the bearing capacity, which would result in very thick steel plates or very dense ribs. On the one hand, it would lead to material waste, and on the other hand, the energy dissipation capacity of the steel after plastic yielding could not be utilized. However, reducing the thickness of the steel plate to utilize its energy dissipation capacity after plastic yielding also reduces the buckling capacity of the steel plate under oblique pressure. The local buckling of th...

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Problems solved by technology

However, usually the whole prefabricated concrete cover slab has a large area and its own weight, so it is easy to crack during transportation and installation, which brings a lot of inconvenience to the construction

There are also buckling-resistant steel plate shear walls that are bolted to horizontal or oblique stiffeners, but the bolted stiffeners are prone to slippage, and the slippage of the stiffeners will generate huge noise, which will cause users to dislike buckling-resistant steel plate shear walls. safety concerns

At the same time, since the entire steel plate shear wall is subjected to reciprocating horizontal loads, its stress state is complicated, and its yield load and energy dissipation capacity cannot be accurately judged.

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