Built-in polyvinyl chloride (PVC) pipe enhanced steel-encased concrete combined column

Abstract

The invention discloses a built-in polyvinyl chloride (PVC) pipe enhanced steel-encased concrete combined column, which comprises PVC pipe concrete, longitudinal angle steel, connection steel lacing bars and common concrete, wherein the PVC pipe concrete is buried in the center of the section of the steel-encased concrete combined column; each piece of longitudinal angle steel is arranged at each corner of the column; the longitudinal angle steel is connected through the connection steel lacing bars; and the concrete is grouted into a residual space on the section of the mixed column. By the PVC pipe concrete, the steel-encased concrete combined column has the outstanding advantages that the bearing capacity of the general common concrete column and the durability of the concrete can be improved; invasion of harmful substances to the structural column in a severe environment is effectively prevented; the cost is low; and the using amount of steel and the manufacturing cost can be saved. Compared with the profile steel concrete column or the steel pipe concrete column, the built-in PVC pipe enhanced reinforced concrete combined column has the advantages that the steel consumption can be greatly reduced; compared with steel, the PVC pipe has the characteristics of low cost, difficulty in rusting, high corrosion resistance and high durability; the cost performance is high; and the construction cost is greatly saved.

Description

technical field [0001] The invention relates to a steel-concrete composite structure and a hybrid structure, in particular to a steel-concrete composite column reinforced with a built-in PVC pipe. Background technique [0002] With the development of modern high-rise, long-span and heavy-duty structures, in order to meet the needs of the overall structural bearing capacity, the traditional reinforced concrete structure must increase the cross-sectional size of the components, resulting in an increase in the self-weight of the structure, which increases Large earthquake response. Especially as a load-bearing column, the level of its bearing capacity determines the performance of various functions on it, such as the design and layout of the roof load of the building; at the same time, in order to meet the needs of the building space, reducing the cross-sectional size of the column is an effective method. way. Therefore, it is required to find a structural column with high be...

AI Technical Summary

Problems solved by technology

However, this type of structure is greatly affected by the steel ratio of the section. When the steel ratio of the section is large, the bearing capacity and seismic ductility of the CFST will be greatly improved, but it will also greatly increase the consumption of steel and increase the construction cost.

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