Multi-layer energy-dissipating concrete-filled steel tube composite column with spliced ​​split panels

Abstract

The invention relates to a multi-layer energy-consuming concrete-filled steel tube composite column based on splicing spacer plates, belongs to the technical field of structural engineering, and solves the problems that concrete-filled steel tube composite columns are low in assembly degree and cannot realize multi-layer energy consumption, and integrity is insufficient in the prior art. The concrete-filled steel tube composite column comprises a foundation, a fully assembled square steel tube column, semi-assembled square steel tube columns, H-shaped connecting short beams, H-shaped steel beams and joint spider energy-consuming connecting pieces, wherein the fully assembled square steel tube column in the middle and the semi-assembled square steel tube columns on the periphery are connected to form a combined column by the spider energy-consuming connecting pieces and the H-shaped connecting short beams, and the two kinds of columns are all fixed on the bottom foundation; the spider energy-consuming connecting pieces are in a spider shape, members are weakened by opening spider holes in advance, the effect of first destroying and later energy consuming is achieved, the spider energy-consuming connecting pieces and the columns are connected by bolts, the member can be rapidly replaced after post-earthquake deformation and energy-consuming destruction. The functions of completeassembly at the construction site, multi-layer energy consumption during earthquake and improvement of post-earthquake recovery capability are achieved.

Description

technical field [0001] The invention relates to a multi-layer energy-consuming steel pipe concrete composite column which can be spliced ​​with split plates, and belongs to the technical field of structural engineering. Background technique [0002] With the development of technology, the height and span of building structures continue to increase. In towering, long-span frame structure buildings, the frame skeleton composed of beams and columns is the main load-bearing structure failure form, usually shear failure. In actual design, the axial compression ratio of the column needs to be strictly controlled to ensure safe bearing under earthquake action. When the axial compression ratio is relatively large, the adjustment method usually adopted in the design is to increase the section of the column and set up a horizontal shear resistance system (such as shear walls and column supports, etc.). In the residential structure, the traditional frame structure columns usually adop...

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Problems solved by technology

[0004] Aiming at the above-mentioned defects in the prior art, the present invention proposes a multi-layer energy-dissipating concrete-filled steel pipe composite column that can be spliced ​​with split plates. Layer energy consumption, when a large earthquake occurs, the problem of insufficient integrity, to achieve complete assembly at the construction site, multi-layer energy consumption during earthquakes, and improve post-earthquake recovery capabilities

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