A connection structure and construction method of prefabricated recycled block concrete columns
A concrete column and concrete technology, which is applied to building structures, columns, pillars, etc., can solve problems such as construction trouble and environmental impact, and achieve the effects of convenient construction, delaying performance degradation and good construction quality.
Active Publication Date: 2022-05-24
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
At present, the connection structure of precast concrete columns usually adopts wet connection. This connection structure requires on-site pouring of concrete. The construction is relatively troublesome and has a certain impact on the environment, which does not fully reflect the advantages of industrialization of construction.
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[0021] The present invention will be described in further detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0022] like figure 1 As shown, it is a schematic diagram of the connection structure of a prefabricated recycled block concrete column, including the prefabricated recycled block concrete upper half column 1, the prefabricated recycled block concrete lower half column 2, the erection bars 7, the steel positioning plate 6, the shear resistance Section steel 9, vertical tunnel 3, vertical groove 4, longitudinal reinforcement 8, stirrup 5; steel positioning plate 6 is located inside the upper half column 1, and holes are pre-drilled on the steel positioning plate 6, and the number of holes is the same as that of the upper half column. The number of longitudinal ribs 8 is the same, and each hole corresponds to one longitudinal rib 8, but the position of each hole is closer to ...
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The invention discloses a connection structure of a prefabricated recycled block concrete column and a construction method thereof. The connection structure of the prefabricated recycled block concrete column includes the prefabricated recycled block concrete upper half column, the prefabricated recycled block concrete lower half column, the frame upright bars, the steel positioning plate, and the shear steel. There are vertical tunnels and vertical grooves reserved near the upper end face. The positions of the vertical grooves and the vertical tunnels are respectively the same as the shear-resisting section steel and the bending-treated steel protruding from the lower end face of the upper half-column of the prefabricated recycled block concrete. The position of the longitudinal ribs corresponds. The invention is convenient for construction, meets the requirements of building industrialization, and solves the problems of troublesome wet connection construction and great impact on the environment. , so that the thickness of the concrete protective layer of the longitudinal reinforcement after the bending treatment is significantly increased in the connection area with structural adhesive, so as to ensure that the column has good fire resistance.
Description
technical field [0001] The invention relates to the technical field of waste and old concrete recycling, in particular to a connection structure of a prefabricated recycled block concrete column and a construction method thereof. Background technique [0002] Due to the fast construction speed and good construction quality, precast concrete components have been widely used in engineering construction. The recycled block concrete column uses a large number of waste concrete blocks, which is in line with the national strategy of energy saving, emission reduction and circular economy. However, the layered placement of waste concrete blocks at the construction site leads to the construction speed of recycled block concrete columns compared with conventional concrete columns. reduced. In order to solve this problem, it is an effective strategy to adopt semi-prefabrication and on-site assembly of recycled block concrete columns. At this time, the assembly connection structure is ...
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IPC IPC(8): E04B1/58E04C3/34E04G21/14
CPCE04B1/58E04C3/34E04G21/14
Inventor 吴波魏之凯
Owner SOUTH CHINA UNIV OF TECH