Post-pouring tape construction method for large-area roof buildings with main girders passing through post-pouring tape

Abstract

The invention discloses a post-cast strip construction method of a large area roofing building with a main beam passing through a post-cast strip. The construction method includes the following stepsthat lifting rings are pre-buried in the positions, located on the post-cast strip (5), of the main beam (3); concrete is poured, and the pre-buried lifting rings are exposed in the position, locatedon the post-cast strip, of the main beam (3); two temporary supports (1) are arranged on the two sides of the post-cast strip (5); a temporary structural steel beam (2) is erected on each of the two temporary supports (1); and after the strength of the portions, located on the two sides of the post-cast strip (5), of the main beam (3) meets design requirements, wire ropes (4) are installed betweenthe temporary structural steel beams (2) and the pre-buried lifting rings to fix. According to the post-cast strip construction method, in the period of waiting for pouring of the post-cast strip (not less than 28 days in general according to the specifications), a construction space below the main beam (3) can be impervious to an original erected scaffold, multiple working procedures can be conducted simultaneously, the building efficiency is improved, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of house construction, in particular to a construction method of a post-casting belt for a large-area roof building in which main girders pass through the post-casting belt. Background technique [0002] The post-pouring belt is a temporary part set at the corresponding positions of the foundation floor, wall and beam in order to prevent the harmful cracks that may occur in the cast-in-place reinforced concrete structure due to uneven shrinkage or uneven settlement during construction. construction joints. [0003] In the prior art, the construction method of the post-casting belt is to support the concrete on both sides of the post-casting belt from bottom to top, and the lower support system can only be removed after the construction of the post-casting belt is completed and the concrete reaches the design strength. [0004] This causes the lower space of the building to be unusable during the constructio...

AI Technical Summary

Problems solved by technology

[0004] This causes the lower space of the building to be unusable during the construction of the post-cast belt, resulting in problems such as high project cost and long construction period.

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