Prefabricated concrete column, concrete combination column and manufacturing method thereof

Abstract

The invention provides a prefabricated concrete column, a concrete combination column and a manufacturing method thereof. The prefabricated concrete column comprises an outer shell and a prefabricated section concrete column body, wherein the outer shell is defined by an outer wall and provided with an open first end and an open second end; the prefabricated section concrete column body is stuffed into the outer shell so that the first end and the second end can form an upper pouring space and a lower pouring space correspondingly; and the prefabricated section concrete column body is provided with a third end located below the first end and a fourth end located above the second end. At least one pouring hole communicating with at least one of the upper pouring space and the lower pouring space is formed in the outer wall, so that concrete is poured into the space formed by the lower pouring space and the upper pouring space by using the pouring holes on a construction site. An external exhausting passage enabling the lower pouring space and the outer wall to communicate is formed in the lower portion of the prefabricated section concrete column body and the outer wall so that air accumulating in the lower pouring space can be exhausted.

Description

technical field [0001] The invention relates to a prefabricated concrete column, a concrete composite column and a manufacturing method thereof, belonging to the field of engineering construction. Background technique [0002] With the promotion of construction industrialization, the application of steel structures in residential buildings has gradually increased. At present, ordinary rectangular concrete composite columns are often used in steel structure houses. This is because the layout of concrete composite columns is flexible and economical, and the frame of concrete composite columns can also form a frame-support system with supports. However, since the wall thickness in residential buildings is usually less than 200mm, ordinary rectangular concrete composite columns have column flutes protruding from the wall, which affects the interior space of the building. The special-shaped concrete composite column whose leg width is the same as the thickness of the infill wall...

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Problems solved by technology

[0003] At present, the internal concrete of the concrete composite column is poured on site. Due to the narrow cavity of the concrete composite column in residential buildings, especially the concrete composite column with a special-shaped cross-section whose limb width is the same as the thickness of the filling wall, the cross-sectional width of the column limb is usually not greater than 200mm. Moreover, there are connecting components such as transverse partitions in the joint area of ​​the floor, which is prone to poor concrete pouring, and its inspection, reinforcement, and replacement are very difficult, which affects the quality of the project; because the concrete is poured on the site, it affects the construction speed and the degree of industrialization of the building. The road transportation of pouring concrete on the construction site and a large number of on-site wet operations are likely to pollute the environment; due to the limitation of site conditions, the concrete strength is generally up to C60, which limits the improvement of the bearing capacity of concrete composite columns and the expansion of application range

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