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

Abstract

The invention provides a foundation slab post-cast strip waterproof steel plate combined structure and a bracing method thereof. The foundation slab post-cast strip waterproof steel plate combined structure comprises a waterproof steel plate, wherein upper and lower wire meshes are respectively arranged at longitudinal center of upper and lower parts of the waterproof steel plate; reinforcing bar brackets are respectively welded on two sides under the waterproof steel plate; and a distance between two adjacent reinforcing bar brackets is not more than 500mm. The bracing method of the foundation slab post-cast strip waterproof steel plate combined structure comprises the following steps: constructing a cushion layer; constructing a mortar bar; welding the waterproof steel plate combined structure; binding a base plate and the reinforcing bars thereon; bracing the waterproof steel plate combined structure; fixing a multiplayer plate combined structure; and pouring the base plate concrete and the post-cast strip concrete. The foundation slab post-cast strip waterproof steel plate combined structure has an excellent anti-seepage effect, can reliably realize a waterproof function and can prevent the phenomena of waterproof steel plate shifting and impurities falling into the post-cast strip caused by the overflow of the concrete during the process of pouring the 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

Images