Multi-cavity concrete filled steel tubular column with perforated inner diaphragms and implementation method of column

Abstract

The invention relates to a multi-cavity concrete filled steel tubular column with perforated inner diaphragms and an implementation method of the column. The multi-cavity concrete filled steel tubular column comprises a polygonal steel pipe, an overall perforated inner diaphragm, a perforated inner diaphragm, a rib plate and concrete. The overall perforated inner diaphragm and the perforated inner diaphragm are arranged inside the polygonal concrete filled steel tubular column, and a large cavity is divided into a few of small cavities, so that the constraint capability on core concrete is improved; the concrete is communicated into a whole through holes of the inner diaphragms, so that the compactibility of the concrete is improved, the bearing capacity and the anti-seismic property are improved, seismic energy is consumed by shearing deformation of the inner diaphragm and the concrete in the holes under reciprocating action of the earthquake, and a steel plate is omitted by perforation of the inner diaphragms, so that construction cost is reduced.

Description

technical field [0001] The invention relates to a multi-cavity steel pipe concrete column with an open-hole inner partition and an implementation method, belonging to the field of energy consumption and shock absorption control in building structures. Background technique [0002] With the steady growth of our country's economy, the progress of society, the improvement of urbanization level, and the further increase of urban population density, a large number of high-rise buildings and super high-rise buildings with complex shapes continue to emerge, which urgently needs new theories and technologies to Support the design and construction of super high-rise buildings. Rectangular CFST columns and circular CFST columns cannot infinitely meet the needs of the project due to their own size and processing technology limitations. Under this premise, the multi-cavity CFST structure will emerge accordingly. [0003] The multi-cavity steel pipe concrete is composed of multi-cavity ...

AI Technical Summary

Problems solved by technology

Under the action of strong earthquakes, the steel pipe concrete structure is prone to local buckling of the cavity wall, the bearing capacity of the cavity wall decreases, and the core concrete at the corresponding part of the steel plate that bulges out is severely shattered, while other parts may not yet When the yield is reached, the performance of the material is not fully utilized, resulting in material waste, which is also proved by a large number of earthquake damage phenomena.

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