Building basement bottom plate post-cast strip waterproof structure

Abstract

The utility model relates to a waterproof structure for a bottom plate post-cast strip, belongs to the technical field of constructional engineering, and particularly relates to a waterproof structure for a building basement bottom plate post-cast strip, which comprises a surface layer. The drainage structure is characterized in that a drainage plate is fixedly installed at the bottom end of the surface layer, a bottom plate is fixedly installed at the bottom of the drainage plate, multiple pieces of pre-cast reinforced concrete are fixedly installed in the bottom plate, a fine aggregate concrete protection layer is connected to the bottom of the bottom plate, and a cushion layer is arranged at the bottom end of the fine aggregate concrete protection layer; according to the utility model, the effects that the building bottom plate is waterproof and is kept dry are achieved, and the problems that although the problem that accumulated water at the post-cast strip of the basement bottom plate is difficult to clean is solved, the bottom plate cannot be kept dry, the accumulated water is easy to corrode, the leakage is easy, the treatment is difficult and the maintenance cost is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a waterproof structure of a post-cast belt of a building basement floor. Background Art

[0002] Building waterproofing has always been taken seriously in the industry. The General Specification for Waterproofing of Buildings and Municipal Engineering (GB55030-2022), also known as the "strictest new waterproofing regulation in history", will be implemented on April 1, 2023. The requirements for building waterproofing will be improved from the national standard level; especially the waterproofing of building basement floors, which is easy to leak, difficult to control, has strong user attention, and high maintenance costs; the post-cast joint position of the building basement floor is a common potential seepage risk point. Strengthening the waterproofing construction at this position can effectively reduce the probability of leakage in the basement floor.

[0003] A Chinese patent with a publication number of CN216920471U is retrieved and discloses a waterproof structure of a basement floor post-casting strip, comprising a concrete cushion layer, a base plate and a plurality of longitudinally arranged post-casting strips and transversely arranged post-casting strips, the base plate and the post-casting strips are located on the top of the concrete cushion layer, a lower layer with a depth of 50 mm is arranged at the bottom of the post-casting strip, a water accumulation well is arranged on the concrete cushion layer at the junction of the longitudinally arranged post-casting strip and the transversely arranged post-casting strip, a waterproof layer is applied to the bottom of the post-casting strip and the inside of the water accumulation well, a non-asphalt polymer self-adhesive waterproofing membrane is arranged at the top opening of the water accumulation well, the upper end of the non-asphalt polymer self-adhesive waterproofing membrane is laid along the bottom of the post-casting strip, and the lower end of the non-asphalt polymer self-adhesive waterproofing membrane is laid along the inner side wall of the water accumulation well; the utility model solves the problem of difficult cleaning of water accumulation in the post-casting strip of the basement floor, ensures the pouring quality of the post-casting concrete, reduces the leakage risk at the post-casting strip of the basement floor, improves the anti-seepage ability at the post-casting strip of the basement floor, and ensures the waterproof performance of the basement floor.

[0004] Based on the above search combined with the existing technology, we found that;

[0005] Although the above-mentioned search patent solves the problem of difficulty in cleaning water accumulation in the post-cast joint of the basement floor, it cannot keep the floor dry, and the accumulation of water is prone to corrosion. There are problems such as easy leakage, difficulty in treatment and high maintenance cost, so there are certain limitations. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a post-cast waterproof structure for the basement floor of a building, which is first poured with reinforced concrete and then multiple layers of waterproof layers are laid to keep the floor dry, avoid water accumulation and leakage, and save maintenance costs.

[0007] The technical solution for achieving the purpose of the present utility model is as follows: A waterproof structure for the post-cast strip of the basement floor of a building, including a waterproof structure for the post-cast strip of the basement floor of a building, including a surface layer, characterized in that: a hydrophobic plate is fixedly installed at the bottom end of the surface layer, a bottom plate is fixedly installed at the bottom of the hydrophobic plate, a plurality of pre-cast reinforced concrete is fixedly installed inside the bottom plate, a fine stone concrete protective layer is connected to the bottom of the bottom plate, a cushion layer is arranged at the bottom end of the fine stone concrete protective layer, and further includes;

[0008] A waterproof layer assembly, the waterproof layer assembly includes an additional waterproof layer fixedly installed between the cushion layer and the fine stone concrete protective layer.

[0009] Preferably, a pair of construction joints are fixedly installed between the bottom plate and the pre-cast reinforced concrete, a plurality of post-cast reinforced concrete are fixedly installed between the pair of construction joints, and wire mesh sheets are fixedly installed at both ends of the construction joints.

[0010] Preferably, an expansion water stop strip is fixedly installed at the bottom end of the bottom plate and the bottom end of the construction joint together.

[0011] Preferably, a water stop stainless steel plate is fixedly installed at the middle position of each construction joint.

[0012] Preferably, a coil waterproof layer is fixedly installed at the bottom of the additional waterproof layer, and a coating waterproof layer is fixedly installed between the coil waterproof layer and the cushion layer.

[0013] Compared with the prior art, the remarkable advantages of the present utility model are:

[0014] First: For the waterproof structure of the post-cast strip of the basement floor of the building of the present utility model, a step is set for the steel-concrete construction joint of the bottom plate to increase the path of water. A water stop stainless steel plate is adopted to reduce the time of the rust removal process of the water stop steel plate before pouring. An additional waterproof layer is set to enhance the waterproof reliability.

[0015] Second: The present utility model adopts high-strength grade expansion concrete to narrow the construction joints, uses rubber water stop belts and expansion water stop strips to enhance the waterproof reliability. The steel-concrete construction joints of the bottom plate are closed with wire mesh sheets to prevent the increase of gaps caused by excessive deformation of the post-cast strip, and improve the overall waterproof performance of the structure.

[0016] Although the above-mentioned retrieved patents solve the problem of difficult cleaning of accumulated water at the post-cast strip of the basement floor, they cannot keep the bottom dry, and the accumulation of accumulated water is prone to corrosion. There are problems such as easy leakage, difficult treatment, and high maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further explains the present utility model in conjunction with the drawings and embodiments:

[0018] Figure 1This is a schematic cross-sectional structure diagram provided by the present utility model.

[0019] Explanation of reference numerals in the drawings:

[0020] 1, surface layer; 2, bottom plate; 3, fine aggregate concrete protective layer; 4, cushion layer; 5, additional waterproof layer; 6, coiled material waterproof layer; 7, coating waterproof layer; 8, hydrophobic plate; 9, construction joint; 10, stainless steel waterstop plate; 11, swelling waterstop strip; 12, wire mesh; 13, pre-cast reinforced concrete; 14, post-cast reinforced concrete. Specific implementation manners

[0021] The present utility model will be described in detail below. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a waterproof structure for the post-cast strip of the basement floor of a building through improvement. The technical solution of the present utility model is as follows:

[0023] As Figure 1 shown, a waterproof structure for the post-cast strip of the basement floor of a building includes a surface layer 1. A hydrophobic plate 8 is fixedly installed at the bottom end of the surface layer 1. A bottom plate 2 is fixedly installed at the bottom of the hydrophobic plate 8. A plurality of pre-cast reinforced concretes 13 are fixedly installed inside the bottom plate 2, which improves the stability of the structure. A fine aggregate concrete protective layer 3 is connected to the bottom of the bottom plate 2. A cushion layer 4 is provided at the bottom end of the fine aggregate concrete protective layer 3. The setting of the fine aggregate concrete protective layer 3 improves the durability and waterproof performance of the structure. It also includes a waterproof layer assembly.

[0024] The waterproof layer assembly includes an additional waterproof layer 5 fixedly installed between the cushion layer 4 and the fine aggregate concrete protective layer 3.

[0025] Furthermore, a pair of construction joints 9 are fixedly installed between the bottom plate 2 and the pre-cast reinforced concrete 13. A plurality of post-cast reinforced concretes 14 are fixedly installed between the pair of construction joints 9, which improves the load-bearing capacity of the structure and extends its service life. Wire meshes 12 are fixedly installed at both ends of the construction joint 9. The wire meshes 12 have good corrosion resistance and improve the safety of the structure.

[0026] Furthermore, a swelling waterstop strip 11 is fixedly installed at the bottom end of the bottom plate 2 and the bottom end of the construction joint 9. It stops water by absorbing water and swelling, completely preventing leakage, and also saves usage amount and reduces maintenance costs.

[0027] Furthermore, a water-stop stainless steel plate 10 is fixedly installed at the middle position of each construction joint 9 to form a firm barrier to prevent groundwater from seeping through the joint.

[0028] Furthermore, a coil waterproof layer 6 is fixedly installed at the bottom of the additional waterproof layer 5, and a coating waterproof layer 7 is fixedly installed between the coil waterproof layer 6 and the cushion layer 4. The thick multi-layer waterproof layer effectively maintains the dryness of the bottom and prevents water accumulation from eroding the ground.

[0029] The specific working method is as follows: The foundation is rammed, the cushion layer 4 is plastered while pouring, the cushion layer 4 is cleaned before waterproof construction, and then two waterproof constructions are carried out; there is one more additional waterproof layer 5 at the post-cast strip position than at the general basement position, and asphalt non-curing coil waterproof layer 6 can be used. A thick fine aggregate concrete protective layer 3 is laid outside the additional waterproof layer 5; the post-cast reinforced concrete 14 of the basement exterior wall uses expansive concrete with a strength grade one higher than that of the previously cast reinforced concrete 13; a rubber external water-stop belt and an expansive water-stop strip 11 are set at the starting point of the construction joint 9 on both sides; the water-stop stainless steel plate 10 is set at 1 / 3 of the thickness from the outside to the inside of the construction joint 9 inside the floor slab 2, with a thickness greater than 3 mm and a width greater than 300 mm, opening outward; a step is set at 2 / 3 of the thickness from the outside to the inside of the construction joint 9 inside the floor slab 2, with a side width of 100; the construction joint 9 inside the floor slab 2 is closed with a wire mesh 12, with a width greater than 300; after the steel-concrete of the floor slab 2 is completed, a 20-mm-thick hydrophobic plate 8 is laid on it, and the surface layer 1 is constructed.

[0030] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered by the present utility model are common general knowledge in the art.

Claims

1. A post-cast strip waterproof structure for a building basement floor, comprising a surface layer (1), characterized in that: A water-repellent plate (8) is fixedly installed at the bottom end of the surface layer (1), a bottom plate (2) is fixedly installed at the bottom of the water-repellent plate (8), a plurality of pre-cast reinforced concrete (13) are fixedly installed inside the bottom plate (2), a fine stone concrete protective layer (3) is connected to the bottom of the bottom plate (2), and a cushion layer (4) is arranged at the bottom end of the fine stone concrete protective layer (3), and further comprising: A waterproof layer assembly, the waterproof layer assembly comprising an additional waterproof layer (5) fixedly installed between a cushion layer (4) and a fine stone concrete protective layer (3).

2. The waterproof structure of the post-cast strip of the building basement floor according to claim 1 is characterized by: A pair of construction joints (9) are fixedly installed between the base plate (2) and the first-cast reinforced concrete (13), a plurality of post-cast reinforced concrete (14) are fixedly installed between the pair of construction joints (9), and steel mesh sheets (12) are fixedly installed at both ends of the construction joints (9).

3. The waterproof structure of the post-cast strip of the building basement floor according to claim 1 is characterized by: An expansion water stop strip (11) is fixedly mounted on the bottom end of the base plate (2) and the bottom end of the construction joint (9).

4. The waterproof structure of the post-cast strip of the building basement floor according to claim 2 is characterized by: A water-stopping stainless steel plate (10) is fixedly installed at the middle position of each construction joint (9).

5. The waterproof structure of the post-cast strip of the building basement floor according to claim 1 is characterized by: A rolled waterproof layer (6) is fixedly installed at the bottom of the additional waterproof layer (5), and a coating waterproof layer (7) is fixedly installed between the rolled waterproof layer (6) and the cushion layer (4).

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