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

Abstract

The invention discloses a built-in polyvinyl chloride (PVC) pipe enhanced reinforced concrete combined column, which comprises PVC pipe concrete, a reinforced cage and common concrete, wherein the PVC pipe concrete is buried in the center of the section of the reinforced concrete combined column; the reinforced cage is embedded into the periphery spaced from the PVC pipe concrete at a certain distance; and the concrete is grouted into a residual space on the section of the combined column. By the PVC pipe concrete, the bearing capacity of the general common concrete column can be improved, the relative section size is reduced, and the clear space of a building is enlarged; the durability of the concrete is improved, and invasion of harmful substances is prevented; and a PVC material is low in cost, so that the using amount of steel and the manufacturing cost can be saved. Under the condition of same bearing capacity, compared with the profile steel concrete (SRC) column or the steel pipe concrete (CFS) column, the built-in PVC pipe enhanced reinforced concrete combined column has the advantages that the steel consumption can be greatly reduced, the corrosion resistance is high, the durability is high, the cost performance is high, and the construction cost can be greatly saved.

Description

technical field [0001] The invention relates to a composite structural column of a reinforced concrete column and a PVC pipe, in particular to a reinforced 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 is bound to increase the cross-sectional size of the components, which leads to an increase in the self-weight of the structure. Increase 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 c...

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 this will greatly increase the consumption of steel and increase the construction cost.

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