Foundation slab post-cast strip waterproof steel plate combined structure and bracing method thereof

Abstract

The present invention provides a combined structure of water-stopping steel plates with post-casting on the foundation bottom plate and a supporting method thereof. The longitudinal center is respectively provided with upper and lower steel wire mesh sheets, the lower sides of the waterproof steel plate are respectively welded with steel support, and the distance between two adjacent steel support supports is not more than 500mm; the base floor is cast with a waterproof steel plate The supporting method of the composite structure, including cushion construction, mortar strip construction, welding construction of the waterproof steel plate composite structure, binding of the bottom plate and its upper steel bars, support of the waterproof steel composite structure, fixing of the multi-layer composite structure and bottom plate Steps such as pouring of concrete and post-pouring with concrete. The invention has a good anti-leakage effect, can reliably play a water-stop function, and prevents the deviation of the water-stop steel plate and the falling of sundries into the post-casting belt caused by the overflow of concrete when pouring concrete.

Description

technical field [0001] The invention relates to a treatment method for preventing water leakage of post-pouring belts for concrete structures with large underground areas. More specifically, the invention relates to a combined structure of water-stopping steel plates with post-pouring belts on foundation bottom plates and a supporting method thereof. Background technique [0002] At present, in the construction of industrial and civil buildings, post-pouring belts must be retained for large-scale foundation projects. The post-pouring belt is to prevent harmful cracks in the cast-in-place reinforced concrete structure due to temperature, uneven shrinkage, and uneven settlement during construction. The construction joint temporarily divides the structure into several parts, and after a certain period of shrinkage inside the component, concrete is poured into the construction joint to connect several parts of the structure into a whole. [0003] However, in the construction of...

AI Technical Summary

Problems solved by technology

However, the adoption of these methods all has defects and deficiencies in varying degrees:

[0005] (1) Using expansion water-stop strips, under normal circumstances, the anti-leakage effect is not obvious;

[0006] (2) Rubber waterstop is used, because of its low strength, it is easy to be damaged due to stones, iron wire and concrete vibration during construction, and it cannot achieve the effect of waterstop;

[0007] (3) Adopting advanced water-stop and post-pouring belt, although there is a certain effect, its cost is very high, and the effect is not very significant;

[0008] (4) The water-stop steel plate is used, although the effect is obvious, but it is difficult to fix, and it is easy to cause the deviation of the water-stop steel plate and the debris falling into the post-cast belt during the construction process due to the overflow of concrete in the post-cast belt situation, thus directly affecting the effect of water-stopping, resulting in a waste of funds

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