Z-shaped steel pipe-steel framework recycled concrete combined pillar

Abstract

The invention relates to a Z-shaped steel pipe-steel framework recycled concrete combined pillar. The Z-shaped steel pipe-steel framework recycled concrete combined pillar is composed of a steel framework, a steel pipe and recycled concrete, wherein the steel framework is formed by welding steel plates, the recycled concrete is located in the steel pipe and wraps the steel framework, the steel pipe surrounds the concrete and is shaped like a Z, the steel framework is welded to form a Z shape, is located in the center of the Z-shaped steel pipe and is coaxial with the Z-shaped steel pipe, the recycled concrete is arranged outside the steel frame, and an inner steel framework and the steel pipe are fixed to a base plate in a welding or bolt connection mode. The steel framework is located in the center of a Z-shaped pillar, and the stress performance of branch parts of the Z-shaped pillar is improved. The Z-shaped steel pipe is located outside, the concrete in the steel pipe is in a three-directional stressed state, and deformation of the concrete is restrained. The Z-shaped steel pipe-steel framework recycled concrete combined pillar is a main component of a framework structure in a high-rise and large-span building, and has the advantages of being high in bearing force, high in rigidity, light in weight, good in plasticity and tenacity, good in impact resistance and fatigue resistance, good in vibration resistance and good in durability, saving energy, protecting the environment and the like.

Description

technical field [0001] The invention relates to a concrete member, in particular to a Z-shaped concrete column used in civil engineering, which is a Z-shaped steel pipe-steel reinforced recycled concrete composite column. Background technique [0002] In the current society, with the development of super high-rise and long-span buildings, ordinary reinforced concrete columns are no longer suitable for heavy-duty columns under large loads. In this case, there are circular steel pipe-steel reinforced concrete composite columns and square steel pipe-steel reinforced concrete composite columns. However, due to people's higher and higher requirements for the building environment, especially the increasing emphasis on the structure of the house and the layout of the living room, the section size of the ordinary steel pipe-steel reinforced concrete heavy-duty column is often larger than the thickness of the wall, which affects the indoor space. It is difficult to meet the requirem...

AI Technical Summary

Problems solved by technology

However, at present, due to the inherent damage of recycled aggregates and the high water absorption rate caused by the adsorption of a layer of old mortar on its surface, the strength, shrinkage and durability of recycled concrete are poorer than ordinary concrete. The earth limits its scope of use

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