Combined type steel pipe concrete special-shaped column with honeycomb-hole partition plate

Abstract

The invention discloses a combined type steel pipe concrete special-shaped column with a honeycomb-hole partition plate. The combined type steel pipe concrete special-shaped column comprises a steel pipe with honeycomb holes and concrete, and is characterized in that longitudinally arranged honeycomb holes are formed in two walls of the steel pipe with the rectangular or square cross section; U-shaped steel is arranged on the outer side of the honeycomb holes; and the concrete is poured into inner cavities of the rectangular or square steel pipe and the U-shaped steel. By the technical scheme, the section of the steel pipe concrete special-shaped column is divided into three chambers; connection among the concrete in the three chambers is enhanced; the interaction between the steel and the concrete is effectively improved; the steel and the concrete are directly stressed, so that the size of the section is reduced, and the width-to-thickness ratio of a steel plate is reduced; the performance of materials is comprehensively developed; the section performance and the bearing capacity are improved; the shock absorption property of the column of the type is improved; the combined type steel pipe concrete special-shaped column is easy and convenient to construct; the vibrating quality and the pouring quality of the concrete are guaranteed; the economical benefit is high; the bonding strength between the concrete and the steel plate is improved; an embedding effect of the steel plate is obvious; high integrity is realized; and a combining effect is outstanding.

Description

technical field [0001] The invention relates to a combined structure of steel and concrete, in particular to a combined steel pipe concrete special-shaped column with a honeycomb hole partition. Background technique [0002] Modern civilization has led to a change in people's aesthetic concept of things. As a vertical load-bearing member in the frame structure—column, its traditional form is a rectangular cross section. The protruding wall of the column has affected the function of the building and the discomfort of the visual sense. The special-shaped column structure has the characteristics of the same thickness as the infill wall, so it avoids the column flute protruding from the wall, increases the actual usable area of ​​the room, and improves the "household rate", which is favored by owners and users. On the one hand, as commercial buildings such as residences and offices continue to develop towards high-rise and super-high-rise buildings, in order to meet the needs of...

AI Technical Summary

Problems solved by technology

In order to meet the requirements of structural bearing capacity and seismic performance, the steel and concrete composite structure has been paid more and more attention in the industry because of the consideration of the above two factors. The common composite columns usually include steel pipe concrete columns and steel concrete columns, but considering The steel concrete structure is relatively complicated in the construction process, so the steel pipe concrete column is mostly used in the composite structure that has been built at present.

In the concrete-filled steel tube special-shaped column, it is generally formed by pouring concrete in the whole section of the outsourcing steel tube, but research shows that the section of this form has a negative angle of 90 degrees, which weakens the combined effect between steel and concrete, and the bearing capacity affected

In order to overcome such unfavorable factors, some reinforced structural measures have been put forward, such as setting stiffeners, setting tie rods, etc. However, these measures cannot really eliminate the above-mentioned effects, and even increase the difficulty of construction and production, which is not convenient for application

On this basis, the researchers proposed the concept of multi-chamber concrete-filled steel tube columns, that is, the section is divided into multiple cells by steel tube welding, and each cell is an independent rectangular steel tube concrete column, which solves the problem to a certain extent. The impact of the negative angle of 90 degrees is eliminated, but the effect of the steel welds between the small rooms cannot make the entire section a community, and the concrete parts are separated, lacking effective connections, and the purpose of the structural combination is not. really reach

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