Post-pouring type deformation device and construction method thereof

Abstract

The invention discloses a back casting type deforming device, which is characterized by the following: (1)comprising two I-beam and at least one indentation steel sheet; paralleling sternum of the two I-beam; aligning the 'I' face of the two; locating the indentation steel sheet between the two I-beam; fixing the two straight side on the sternum of the two I-beam; producing mold; assembling bar; fixing the I-beam and the indentation steel sheet; embedding the back casting type deforming device; paralleling the flange of the I-beam with the mold; fixing the I-beam and the assembling deformed device; (2)casting concrete without back casting area; (3)stewing for 7-14 days; casting the concrete of the back casting area; (4)wrecking the mold after 7-14 days.

Description

Technical field [0001] The invention relates to a deformation device used in buildings, in particular to a deformation device used for post-casting belts of buildings. Background technique [0002] The conventional floor or basement side wall construction is to divide the post-casting joints at intervals of about 50 meters. The spacing of the post-spout joints on the side walls of the basement is sometimes a little smaller. Usually, it is necessary to add water-stop steel plates 1 on both sides of the post-casting joint when dividing the joint, and use steel wire mesh 2 (also known as "quick and easy closing net") as the end template on both sides of the post-casting belt to form a 600-1000mm Wide post-pouring tape. Before pouring the post-casting belt, the above-mentioned steel wire mesh is used as the structural frame of the post-casting belt, but its rigidity is not high, and there are holes on the mesh. The compactness of the concrete on the side close to the steel wi...

AI Technical Summary

Problems solved by technology

[0010] (1). The demoulding time usually takes more than one month, which seriously affects the construction period;

[0011] (2). There are post-cast joints on the side wall of the basement, and the surrounding soil cannot be backfilled immediately, resulting in serious congestion of the construction site and prolonging the construction period;

[0012] (3). Weak belts (energy dissipating belts) cannot be formed at the joints of the post-casting belts. Due to their excessive rigidity, they cannot better absorb the energy generated by the shrinkage and deformation of the floors or walls. The post-cast belt can only be closed after the wall is fully deformed, which greatly prolongs the construction period; sometimes the post-cast belt is closed too early to meet the construction period, which only reduces the early shrinkage of the concrete structure, but cannot completely solve its future shrinkage deformation Substantial problems that are prone to cracks

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