Combined shear wall with steel plates concealed in internal prestressed tendon CFST (concrete filled steel tube) frame and manufacturing method

Abstract

The invention discloses a combined shear wall with steel plates concealed in an internal prestressed tendon CFST (concrete filled steel tube) frame and a manufacturing method and belongs to the fieldof steel-concrete combined shear walls. The combined shear wall comprises CFST frame columns, prestressed tendons, steel plates and a reinforced concrete shear wall, wherein the CFST frame columns arearranged at two ends of the shear wall; the prestressed tendons are arranged in the CFST frame columns; the two CFST frame columns are connected through the steel plates; shear wall rebars are tied;tying bars penetrate through the steel plates to connect the rebars on two sides; concrete is poured; prestress is applied with a post-tensioning method, and the combined shear wall with steel platesconcealed in the internal prestressed tendon CFST frame is formed. compared with ordinary steel tube-concrete frame shear walls and steel plate shear walls, the combined shear wall has improved bearing capacity, attenuation of the bearing capacity and the rigidity is slow, the later aseismic property is stable, the shear wall has recoverability in the presence of the prestressed tendons, displacement of an overall structure is reduced, and the aseismic property is excellent; non-bonding prestressed tendon construction is convenient, and the combined shear wall can be applied to high-rise buildings or large complicated multi-storey buildings.

Description

Technical field [0001] The invention relates to a steel-concrete composite shear wall with built-in prestressed steel-tube concrete frame and a steel plate concealed method. It belongs to the field of building structures and is a new type of steel-concrete composite shear wall that improves the seismic performance of the structure and can partially recover from deformation after an earthquake And its production method. Background technique [0002] The development of high-rise and super high-rise buildings in China is rapid. It is common to use steel-concrete composite shear wall core tubes for super high-rise buildings above 300 meters in the 8 degree area and 400 meters above the 7 degree area. Steel-concrete composite shear walls include various forms of different combinations of steel, steel pipes, steel plates, diagonal braces and other steel and concrete in different parts of the shear wall. Steel structures such as steel plates can be embedded in the shear wall. . Adding...

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Problems solved by technology

[0004] The invention aims to solve the problems of unrecoverable and insufficient bearing capacity, ductility, and seismic energy dissipation capacity of shear walls during earthquakes

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