Steel tube concrete frame inbuilt steel plate core cylinder with soft steel sleeves at bottom and producing method of steel tube concrete frame inbuilt steel plate core cylinder

Abstract

The invention discloses a steel tube concrete frame inbuilt steel plate core cylinder with soft steel sleeves at a bottom. The steel tube concrete frame inbuilt steel plate core cylinder is composed of a steel tube concrete frame column, a soft steel sleeve and a steel plate concrete shear wall. The steel tube concrete frame inbuilt steel plate core cylinder with the soft steel sleeves at the bottom, disclosed by the invention, is a three-combination body of a combination of reinforced steel bars and concrete, a combination of steel plates and concrete as well as a combination of the steel tube concrete frame column and the steel plate shear wall. The steel tube concrete frame inbuilt steel plate core cylinder with the soft steel sleeves at the bottom, disclosed by the invention, has greater initial rigidity, higher bearing capability, slower attenuation of the bearing force and the rigidity as well as better integral quake-proof energy consumption performance than those of normal reinforced concrete cylinders and has relatively steady earthquake resistant capability in a later stage. After the soft steel sleeves are additionally arranged, the soft steel sleeve at the outer side is firstly yielded to consume energy of an earthquake input structure and can play resistance power and ductility functions even when the soft steel sleeve at the outer side is damaged, so that previous damage and destruction of the high-intensity steel plate can be prevented and delayed.

Description

technical field [0001] The invention relates to a steel plate core tube with a steel tube concrete frame with a soft steel casing at the bottom and a method for it, which is a composite tube applied to high-rise buildings and belongs to the field of construction engineering. Background technique [0002] With the rapid development of my country's economic construction and the acceleration of urbanization, a large number of high-rise buildings have been built. In the selection of the structural system of high-rise buildings, factors such as improving the seismic energy dissipation capacity of the structure, reducing wind-induced swing, shortening the construction period, and reducing the cost are generally considered. The tube body composed of shear walls is the core part of high-rise building anti-seismic. Since high-rise buildings need to have greater lateral stiffness, the design of the lateral force-resistant structure is the key in the design, and the tube body is the ma...

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Problems solved by technology

[0004] At present, in the research field of cylinder structure, most of them are focused on the research of ordinary reinforced concrete cylinder, while the research results on the core cylinder with built-in steel plate are relatively few, and the research on its seismic performance and structural measures is not deep enough. The anti-seismic energy dissipation capacity of its internal materials has not been deeply excavated

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