Steel tube bundle-corrugated steel plate concrete combined column

Abstract

The invention provides a steel tube bundle-corrugated steel plate concrete combined column. The steel tube bundle-corrugated steel plate concrete combined column comprises a combined column body, wherein the combined column body comprises steel tube bundles, corrugated steel plates and concrete; the steel tube bundles are vertically arranged; the corrugated steel plates are positioned between the steel tube bundles; side edges of the steel tube bundles and the corrugated steel plates are connected end to form a columnar body; and the concrete is poured in the columnar body. According to the steel tube bundle-corrugated steel plate concrete combined column, the corrugated steel plates are used as steel tube walls, slippage of steel and concrete is avoided in a loading process, the steel and the concrete can work together well, and the tube wall of the middle of the combined column cannot be bent to cause bearing capacity degradation waves. When the corrugated steel plates are pressed, the steel tube bundles on the periphery are effectively pulled, a high restraining effect is provided for core concrete, and brittle failure of the concrete is avoided. By the steel tube bundles consisting of rectangular steel tubes, C-shaped steel and angle steel, the bending rigidity of the steel tubes can be greatly improved under the condition of the same steel consumption, and therefore, the steel tubes can still work efficiently when the axes of the steel tubes are not pressed completely.

Description

technical field [0001] The invention relates to the field of building structures, in particular to a steel pipe bundle corrugated steel plate concrete composite column. Background technique [0002] In recent years, CFST columns have developed rapidly as new high-efficiency composite components. When the steel pipe wall is thin, steel bars or section steel still need to be configured inside, and the construction is more complicated. For steel pipe concrete with thicker steel pipe wall, the ideal combination of steel pipe and concrete cannot be achieved. At the same time, although rectangular steel pipes are more suitable for architectural layout than circular steel pipes, because the middle wall of the rectangular steel pipe section has weaker constraints on the concrete, local buckling is more likely to occur under compression, resulting in waste of steel. For ordinary concrete-filled steel tube columns, the shear-span ratio limitation needs to be considered in the applica...

AI Technical Summary

Problems solved by technology

When the steel pipe wall is thin, steel bars or section steel still need to be configured inside, and the construction is more complicated. For the steel pipe concrete with thicker steel pipe wall, the ideal combination of steel pipe and concrete cannot be achieved.

At the same time, although rectangular steel pipes are more suitable for architectural layout than circular steel pipes, because the middle wall of the rectangular steel pipe section has weaker constraints on the concrete, local buckling is more likely to occur under pressure, resulting in waste of steel

For ordinary concrete-filled steel tube columns, the shear-span ratio limitation needs to be considered in the application of long-span high-rise buildings. The wall thickness of the steel tube is too large to make full use of the combined effect of steel and concrete, which has certain limitations in engineering applications.

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