Prefabricated laminated slab assembly waterproof structure

Abstract

The utility model relates to a prefabricated laminated slab assembly waterproof structure which comprises a first prefabricated laminated slab and a second prefabricated laminated slab, a plurality of first reinforcing steel bars are arranged at the left end and the right end of the first prefabricated laminated slab in a penetrating mode, and a plurality of second reinforcing steel bars are arranged at the left end and the right end of the second prefabricated laminated slab in a penetrating mode. The first prefabricated laminated slab and the second prefabricated laminated slab are arranged in a left-right spaced mode, a waterproof roll layer, a post-pouring concrete layer and ultra-thin press-fit angle steel are further arranged in a gap between the first prefabricated laminated slab and the second prefabricated laminated slab, and the waterproof roll layer is arranged between the bottom of the first prefabricated laminated slab and the bottom of the second prefabricated laminated slab. The right-angle areas of the joints of the first prefabricated laminated plate and the second prefabricated laminated plate and the waterproof roll layer are coated with waterproof coating layers, and reinforced geotechnical cloth is attached to the outer sides of the waterproof coating layers. The ultra-thin press-fit angle steel is arranged at intervals in the extending direction of the reinforced geotechnical cloth. The prefabricated laminated slab has the advantages that the waterproof coiled material layer, the post-pouring concrete layer and the ultra-thin press-fit angle steel are arranged in the gap between the first prefabricated laminated slab and the second prefabricated laminated slab, the water leakage phenomenon at the joint of the adjacent prefabricated laminated slabs can be effectively prevented, the waterproof effect is good, the overall strength is high, and the service life is long. And the phenomenon that the joints of the adjacent prefabricated laminated slabs are easily broken can be prevented.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a precast composite slab assembly waterproof structure. Background Technique

[0002] A composite slab is an assembled monolithic floor slab formed by laminating a precast slab and a cast-in-place reinforced concrete layer. The composite floor slab has good integrity, and the upper and lower surfaces of the slab are flat, which is convenient for the decoration of the finishing layer. It is suitable for high-rise buildings and large-span buildings with high requirements for overall stiffness.

[0003] During the construction of the existing composite slab, it is necessary to first hoist and place the precast composite slab, and then cast concrete at the connection of the composite slab to make it an integral body. However, there are often gaps at the connection of the new and old concrete, which are prone to water leakage.

[0004] Chinese Patent (Publication No.: CN219118519 U) discloses a composite slab with steel connectors, including steel connector I, steel connector II, composite slab bottom reinforcement, fixed reinforcement, screw, opening, and nut. The steel connector I and steel connector II are L-shaped. The steel connector I and steel connector II are distributed on both sides of the composite slab parallel to the span direction of the composite slab. The composite slab bottom reinforcement is located at the bottom inside the composite slab, and the fixed reinforcement is located at the top inside the composite slab parallel to the span direction. The screws are distributed on the steel connector I by welding, and the openings are distributed on the steel connector II. The positional relationship between the screws and the openings corresponds one by one, which can solve the problem of steel bar collision during the connection of traditional composite slabs, avoid rework caused by steel bar collision during construction, and speed up the construction progress. After the construction of the above patent is completed, there are still gaps at its assembly joints, and the waterproof performance does not meet the requirements. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a precast composite slab assembly waterproof structure to solve the problems put forward in the above background technique.

[0006] The purpose of the utility model is realized through the following technical solutions: A precast composite slab assembly waterproof structure includes a first precast composite slab and a second precast composite slab. A plurality of first reinforcing bars penetrate through the left and right ends of the first precast composite slab, and a plurality of second reinforcing bars penetrate through the left and right ends of the second precast composite slab. The first precast composite slab and the second precast composite slab are arranged at intervals left and right. A waterproof coiled material layer, a post-cast concrete layer, and an ultra-thin pressed angle steel are also provided between the gaps of the first precast composite slab and the second precast composite slab. The waterproof coiled material layer is arranged between the bottoms of the first precast composite slab and the second precast composite slab, and a waterproof coating layer is applied to the right-angle area where the first precast composite slab and the second precast composite slab are connected to the waterproof coiled material layer. A reinforced geotextile is pasted on the outside of the waterproof coating layer;

[0007] The ultra-thin pressed angle steels are arranged at intervals along the extending direction of the geogrid, and are used to fix the geogrid. The post-cast concrete layer is poured between the first precast composite slab, the second precast composite slab and the waterproof coiled material layer, and the upper end of the post-cast concrete layer is flush with the upper end surfaces of the first precast composite slab and the second precast composite slab.

[0008] Preferably, a wear-resistant coating is applied to the lower end surface of the waterproof coiled material layer.

[0009] Preferably, a plurality of reinforcing bars are arranged through the front and rear ends of the first precast composite slab and the second precast composite slab.

[0010] Preferably, lifting bars are arranged on the left and right sides of the upper ends of the first precast composite slab and the second precast composite slab.

[0011] Preferably, the first reinforcing bar and the second reinforcing bar overlap each other.

[0012] Preferably, both the first reinforcing bar and the second reinforcing bar are located in the post-cast concrete layer.

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

[0014] The present utility model is provided with a waterproof coiled material layer, a post-cast concrete layer and ultra-thin pressed angle steels between the gaps of the first precast composite slab and the second precast composite slab, which can effectively prevent water leakage at the joints of adjacent precast composite slabs, has good waterproof effect, high overall strength, and can prevent the joints of adjacent precast composite slabs from easily breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional overall structure schematic diagram of a precast composite slab assembly waterproof structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the position of the waterproof coiled material layer of a precast composite slab assembly waterproof structure of the present utility model;

[0017] Figure 3 is a front structure schematic diagram of the post-cast concrete layer of a precast composite slab assembly waterproof structure of the present utility model;

[0018] In the figure: 1 - the first precast composite slab, 2 - the second precast composite slab, 3 - the reinforcing bar, 4 - the lifting bar, 5 - the first reinforcing bar, 6 - the second reinforcing bar, 7 - the wear-resistant coating, 8 - the waterproof coiled material layer, 9 - the post-cast concrete layer, 10 - the waterproof coating layer, 11 - the geogrid, 12 - the ultra-thin pressed angle steel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The content of the present utility model will be described in detail below with reference to the accompanying drawings of the specification and embodiments:

[0020] As shown Figures 1 to 3 in the figure is a schematic diagram of an embodiment of a precast composite slab assembly waterproof structure provided by the present utility model.

[0021] A precast composite slab assembly waterproof structure includes a first precast composite slab 1 and a second precast composite slab 2. A plurality of first reinforcing bars 5 penetrate through the left and right ends of the first precast composite slab 1, and a plurality of second reinforcing bars 6 penetrate through the left and right ends of the second precast composite slab 2. The first precast composite slab 1 and the second precast composite slab 2 are arranged at intervals left and right. A waterproof coiled material layer 8, a post-cast concrete layer 9, and an ultra-thin pressed angle steel 12 are also provided between the gaps of the first precast composite slab 1 and the second precast composite slab 2. The waterproof coiled material layer 8 is arranged between the bottoms of the first precast composite slab 1 and the second precast composite slab 2, and a waterproof coating layer 10 is applied to the right-angle area where the first precast composite slab 1 and the second precast composite slab 2 are connected to the waterproof coiled material layer 8. A reinforced geotextile 11 is pasted on the outside of the waterproof coating layer 10;

[0022] The ultra-thin pressed angle steel 12 is arranged at intervals along the extension direction of the reinforced geotextile 11, and is used to fix the reinforced geotextile 11. The post-cast concrete layer 9 is poured between the first precast composite slab 1, the second precast composite slab 2 and the waterproof coiled material layer 8, and the upper end of the post-cast concrete layer 9 is flush with the upper end surfaces of the first precast composite slab 1 and the second precast composite slab 2.

[0023] The reinforced geotextile 11 itself has the advantages of high tensile strength, large surface roughness, good adhesion performance, etc., which can effectively improve the stability and tensile performance of the waterproof coating layer 10, ensure the waterproof performance at the connection between the first precast composite slab 1 and the second precast composite slab 2 and the waterproof coiled material layer 8. At the same time, with the cooperation of the arranged ultra-thin pressed angle steel 12, it can ensure that the reinforced geotextile 11 is not easily deformed during installation, and can also improve the overall strength of the device.

[0024] The ultra-thin pressed angle steel 12 can be fixed at the end of the first precast composite slab 1 or the second precast composite slab 2 by press riveting; or a top support steel bar is arranged between two corresponding ultra-thin pressed angle steels 12.

[0025] A wear-resistant coating 7 is applied to the lower end surface of the waterproof coiled material layer 8.

[0026] The wear-resistant coating 7 is epoxy resin or polyurethane, which has excellent adhesion and strength, and can improve the weather resistance and chemical corrosion resistance of the waterproof coiled material.

[0027] A plurality of reinforcing bars 3 penetrate through the front and rear ends of the first precast composite slab 1 and the second precast composite slab 2.

[0028] The upper left and right sides of the first precast composite slab 1 and the second precast composite slab 2 are both provided with lifting bars 4. Through the lifting bars 4, it is convenient for workers to use the hook of an external crane to hook the lifting bars 4 to lift and transfer the first precast composite slab 1 and the second precast composite slab 2.

[0029] The first reinforcing bar 5 and the second reinforcing bar 6 overlap with each other. The overlapping part can be further strengthened by tying the steel bars.

[0030] Both the first reinforcing bar 5 and the second reinforcing bar 6 are located in the post-cast concrete layer 9.

[0031] The first reinforcing bar 5 and the second reinforcing bar 6 can improve the overall strength of the first precast composite slab 1 and the second precast composite slab 2.

[0032] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claimed invention.

[0033] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precast composite slab assembly waterproof structure, including a first precast composite slab (1) and a second precast composite slab (2). A plurality of first reinforcing steel bars (5) penetrate through the left and right ends of the first precast composite slab (1), and a plurality of second reinforcing steel bars (6) penetrate through the left and right ends of the second precast composite slab (2). The first precast composite slab (1) and the second precast composite slab (2) are arranged at intervals left and right. It is characterized in that: A waterproof coiled material layer (8), a post-cast concrete layer (9), and an ultra-thin pressed angle steel (12) are further provided between the gaps of the first precast composite slab (1) and the second precast composite slab (2). The waterproof coiled material layer (8) is arranged between the bottoms of the first precast composite slab (1) and the second precast composite slab (2), and a waterproof coating layer (10) is applied to the right-angle area where the first precast composite slab (1) and the second precast composite slab (2) are connected to the waterproof coiled material layer (8). A reinforced geotextile (11) is pasted on the outside of the waterproof coating layer (10); The ultra-thin pressed angle steel (12) is arranged at intervals along the extension direction of the reinforced geotextile (11), and it is used to fix the reinforced geotextile (11). The post-cast concrete layer (9) is poured between the first precast composite slab (1), the second precast composite slab (2), and the waterproof coiled material layer (8), and the upper end of the post-cast concrete layer (9) is flush with the upper end surfaces of the first precast composite slab (1) and the second precast composite slab (2).

2. The precast composite slab assembly waterproof structure according to claim 1, characterized in that: A wear-resistant coating (7) is applied to the lower end surface of the waterproof coiled material layer (8).

3. A precast composite slab assembly waterproof structure according to claim 1, characterized in that: A plurality of reinforcing bars (3) penetrate through the front and rear ends of the first precast composite slab (1) and the second precast composite slab (2).

4. A precast composite slab assembly waterproof structure according to claim 1, characterized in that: Lifting bars (4) are arranged on the left and right sides of the upper ends of the first precast composite slab (1) and the second precast composite slab (2).

5. A precast composite slab assembly waterproof structure according to claim 1, characterized in that: The first reinforcing steel bar (5) and the second reinforcing steel bar (6) overlap each other.

6. The precast composite slab assembly waterproof structure according to claim 5, characterized in that: Both the first reinforcing steel bar (5) and the second reinforcing steel bar (6) are located in the post-cast concrete layer (9).

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