Bottom plate post-cast strip waterproof structure and construction method thereof: Fid-Bau Portal

Bottom plate post-cast strip waterproof structure and construction method thereof

WANG ZHONG

The invention relates to the technical field of building construction, and discloses a bottom plate post-cast strip waterproof structure and a construction method thereof.The bottom plate post-cast strip waterproof structure comprises a bottom plate cushion layer, two pre-cast bottom plates and a post-cast strip bottom plate arranged between the two pre-cast bottom plates, and at least one pre-laid waterproof layer is laid on the bottom plate cushion layer; an externally-attached water stop steel plate is arranged on the pre-paved waterproof layer on the uppermost layer, and the two side wings of the externally-attached water stop steel plate are poured into the pre-poured bottom plates on the two sides correspondingly to form a water stop structure; post-cast strip closing-up steel wire meshes are arranged between the pre-cast bottom plate and the post-cast strip bottom plate and arranged on the inner sides of the two ends of the externally-attached water stop steel plate. According to the waterproof structure for the post-cast strip of the bottom plate, the externally-attached water stop steel plate is adopted as an advanced water stop structure, a deformation joint structure of a bottom plate cushion layer is omitted, construction is easy and convenient, and the construction cost is effectively reduced.

本发明涉及建筑施工技术领域，公开了一种底板后浇带防水构造及其施工方法，底板后浇带防水构造包括底板垫层、两先浇底板以及设于两先浇底板之间的后浇带底板，底板垫层上铺设有至少一层预铺防水层；最上层的预铺防水层上设有外贴式止水钢板，外贴式止水钢板的两侧翼分别浇筑于两侧的先浇底板内，以形成止水构造；先浇底板和后浇带底板之间设有后浇带收口钢丝网片，后浇带收口钢丝网片设于外贴式止水钢板的两端的内侧。上述底板后浇带防水构造，采用外贴式止水钢板作为超前止水构造，取消了底板垫层的变形缝构造，不仅施工简便，还有效降低了施工成本。

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