Contact buckling-resistant steel plate shear wall and manufacturing method thereof

Abstract

The invention provides a contact type buckling-restrained steel plate shear wall and a production method thereof. The contact type buckling-restrained steel plate shear wall comprises an embedded steel plate, flanges, stiffening ribs and insulating layers, wherein the flanges are welded on the left side and the right side of the embedded steel plate; the stiffening ribs are arranged on the front side and the back side of the embedded steel plate and supported on the flanges. According to the provided contact type buckling-restrained steel plate shear wall, reduction of the bearing capacity and stiffness due to reduction of the section size of the embedded steel plate and damage to a pull strap because of slotting or punching in the embedded steel plate is avoided, and reduction of the low-cycle fatigue performance of the embedded steel plate due to a welding process adopted on the embedded steel plate is avoided. The contact type buckling-restrained steel plate shear wall is simple in structure, convenient to construct and excellent in energy dissipation capacity, has the wide application range and can consume energy input by an earthquake under the action of the earthquake and protect a main body structure from damage.

Description

Technical field [0001] The invention relates to an engineering structure damping device and a manufacturing process thereof, in particular to a contact type anti-buckling steel plate shear wall and a manufacturing method thereof, and belongs to the energy dissipation and vibration reduction and vibration control technology of engineering structures. Background technique [0002] Steel plate shear wall is a new type of anti-lateral force system, which is mainly used in areas with high seismic intensity such as Japan and North America. It is a common energy dissipation device. The steel plate shear wall is composed of embedded steel plates and edge members. According to the height-to-thickness ratio of embedded steel plates, steel plate shear walls can be divided into thick steel plate shear walls and thin steel plate shear walls. Thick steel plate shear walls have greater initial stiffness and generally do not undergo elastic buckling, while thin steel plate shear walls are prone...

AI Technical Summary

Problems solved by technology

Welding stiffeners, whether it is cross stiffening or cross stiffening, welding process will inevitably produce residual stress and residual deformation, which will affect the mechanical properties of the steel plate

Because the steel plate is thin, it is easy to "burn through" during welding, and there are inevitably defects such as cracks and inclusions in a large number of welded parts. Under the action of reciprocating load, the cracks are easy to expand rapidly and brittle fracture occurs soon, which reduces the ductility of the steel plate.

Secondly, the stiffener is prone to local buckling, which reduces the stiffening efficiency of the stiffener. Repeated local buckling accelerates the fracture of the stiffener, and eventually loses the stiffening effect

[0005] Vertical seams are opened on the plate, and the vertical seams are opened on the steel plate to change the overall shear deformation of the steel plate into the bending deformation of the columns between the seams, thereby improving the ductility of the plate, but the construction process is more complicated

Due to the division of the steel plate, the path of the tension field is not smooth, and it is difficult to form a complete tension field, so the bearing capacity provided is limited

Secondly, the vertical joints greatly weaken the stiffness and bearing capacity of the steel plate, and generally cannot work alone as the main anti-lateral force system of the structure, and its hysteretic curve presents obvious shear-slip characteristics

At the same time, making vertical seams on the steel plate will greatly increase the production cost, and make the analysis parameters of the steel plate various, and the design method is more complicated. In addition, the design parameters increase suddenly, which is difficult to grasp and the theoretical prediction accuracy is not high

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