Water stop structure for post-cast strip

Abstract

The invention discloses a water stop structure for a post-cast strip. The water stop structure comprises a bottom waterproof structure, a pre-cast reinforced concrete structure, a post-cast concrete structure, a water stop steel plate, an externally-attached water stop belt and a closing-up net. The semi-rigid water stop steel plate is adopted, and gaps generated by shrinkage deformation of concrete can be prevented. Compared with a traditional method, the welding amount is reduced, the phenomenon that the water stop steel plate is welded through during welding can be prevented, and environment protection is facilitated. The externally-attached water stop belt is additionally arranged at the bottom, and a water seepage defense line is added compared with the traditional method. The water stop structure is easy and convenient to install, high in flexibility and beneficial to application and popularization, and meets the green, environment-friendly and saving principle.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular provides a water-stop structure for post-cast belts. Background technique [0002] For the basement floor, exterior wall, and roof projects where post-cast strips are left, in order to prevent water leakage at the interface between new and old concrete, a water-stop structure needs to be installed at the position of the post-cast strip. [0003] In order to ensure that the post-cast belt does not leak after pouring in the later stage, a water-stop structure should be installed at the post-cast belt. Most of the traditional sites use 300*3 steel plates for pre-buried, and the section openings of the post-cast belt are blocked by closing nets. . After the concrete is poured, the steel plate is bonded to the concrete. Due to the shrinkage and deformation of the concrete, there will often be gaps at the bonding position between the concrete and the steel plate, and...

AI Technical Summary

Problems solved by technology

After the concrete is poured, the steel plate is bonded to the concrete. Due to the shrinkage and deformation of the concrete, there will often be gaps in the bonding position between the concrete and the steel plate, and the water pressure at the bottom plate and the water-facing surface of the outer wall will increase after the post-pouring tape is poured, so that the post-pouring Leakage occurs at the junction of old and new concrete in the pouring belt

The traditional post-casting belt water-stop structure is a single water-stop steel plate, which has poor anti-leakage effect

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