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

A reinforced concrete column, reinforced concrete technology, applied in the direction of columns, piers, pillars, etc., can solve the problems of increasing steel consumption and construction costs, and achieve the effects of improving durability, high quality and cost performance, and reducing relative cross-sectional size.

Inactive Publication Date: 2013-04-03
GUANGXI UNIV
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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 capacit

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

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[0021] PVC (Poly Vinyl Chloride) material has good processing performance, low manufacturing cost, corrosion resistance, insulation and other good characteristics and relatively excellent geometric stability. Generally speaking, PVC pipe has good physical and mechanical properties, its tensile yield strength is ≥40MPa, and its elastic modulus is about 2749MPa.

[0022] When the composite column is a small high-rise or a high-rise building's bottom-floor column or several lower-story columns, the load (including bending moment, shear force and axial force) transmitted from the upper part is relatively large, especially the influence of axial force on the column section size , and in order to meet the requirements of the limit value of the axial compression ratio required for the earthquake resistance of the building structure, the column section must have a very high bearing capacity. An effective means to increase the bearing capacity is to increase the ratio of the sum of the...

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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...

Claims

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Application Information

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IPC IPC(8): E04C3/34
Inventor 陈宗平徐金俊薛建阳
Owner GUANGXI UNIV
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