Construction method of bare concrete prefabricated box beam with complicated structure

Abstract

The invention discloses a construction method of a bare concrete prefabricated box beam with a complicated structure. The construction method comprises the following steps: (1) preparing for construction; (2) processing a foundation; (3) measuring and paying off; (4) mounting a bracket; (5) paving a bottom die; (6) prepressing the bracket; (7) binding a steel bar framework; (8) constructing by a corrugated pipe; (9) mounting a side die board; (10) supporting an outer side die board; (11) mounting a core die; (12) pouring bare concrete; (13) carrying out concrete maintenance; (14) mounting a support; (15) treating the surface of a beam plate; and (16) removing the die. According to the method disclosed by the invention, construction steps are simplified and the construction period is shortened; the construction of the bare concrete prefabricated box beam with the complicated structure is realized, and materials are saved and labor hours are shortened; and the construction quality is improved, and the economic benefits and the social benefits are obvious.

Description

technical field [0001] The invention relates to a construction method of a complex structure fair-faced concrete prefabricated box girder. Background technique [0002] With the advancement of technology, the traditional concrete box girder construction has been applied to long-span bridge engineering, subway station engineering, single-storey and multi-storey industrial plant columns, high-rise and super high-rise building projects, etc., but in the actual application process appeared some problems: [0003] (1) The pouring of concrete in the concrete column tube is a concealed project, and the pouring quality of the concrete cannot be visually inspected. When manual pouring and vibration are used, the construction quality can only be guaranteed by the operator's sense of responsibility and strict construction organization management. Checking is cumbersome, time-consuming and labor-intensive. [0004] (2) The manufacture and installation of the box girder is difficult an...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to address the many deficiencies of the prior art, to provide a construction method for prefabricated box girders of complex structure fair-faced concrete, on the basis of ensuring the structural performance of concrete buildings, reduce the size deviation of concrete structures and defects in appearance quality as much as possible, and achieve the goal of prefabricated box girders. The beam concrete surface is smooth, the texture is dense, and the color is uniform, while saving materials and man-hours, and improving the quality of prefabricated box girders with complex structures

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