Efficient waterproof structure and method for building construction joint

Abstract

The application discloses a kind of house construction joint efficient waterproof structure and its waterproof method, the waterproof structure includes: strip base, connect at the design position of construction joint, and length is equal to the design length of construction joint;Two rigid baffles are respectively connected in the opposite sides of the top of the strip base, and the pouring space for post-cast concrete pouring is formed between the two rigid baffles, and the top elevation of the rigid baffle is flush with the top design elevation of the first pouring concrete;Elastic sealing core is longitudinally arranged in the pouring space, for being filled in the pouring space when post-cast concrete, expansion under pressure to cooperate with the post-cast concrete;Limiting plate, the limiting plate is located above elastic sealing core, and is connected to the two rigid baffles by connecting piece, the limiting plate is arranged along horizontal direction, and top elevation is flush with the top elevation of the rigid baffle, and the waterproof effect is improved by setting the waterproof structure.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a highly efficient waterproof structure and waterproofing method for building construction joints. Background Technology

[0002] In the construction of building structures, construction joints are usually set in order to complete the concrete pouring in stages. Construction joints are discontinuous sections in building structures that are set manually. They often appear in floor slabs, shear walls, foundation slabs, etc., and play a role in easing the time span of concrete construction and construction organization. However, since construction joints are often located in the structural bearing surface or seepage channels, the quality of their waterproofing treatment directly affects the durability and functionality of the building.

[0003] In traditional techniques, waterproofing treatment of construction joints often employs methods such as waterstops, waterstop steel plates, or water-swellable materials. These are pre-embedded at the construction joint location, forming a physical barrier by embedding waterproof components within the structure to block the path of water penetration. Especially in high-risk areas such as basements, underground pipe corridors, and foundation rafts, waterstop-type waterproof components have become an indispensable treatment method for waterproofing construction joints.

[0004] Because the waterstop needs to be accurately positioned and fixed before the concrete is poured, it is prone to displacement and deviation from the designed installation position when the waterstop is subjected to vibration, flow thrust or steel reinforcement during the concrete pouring process. In addition, the waterstop itself is prone to deformation. Under the action of flow thrust, the waterstop is prone to twisting, folding and other deformations, which affects the water-stopping effect. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a highly efficient waterproof structure and waterproofing method for building construction joints, which not only ensures the stability of the waterproof structure and prevents displacement, but also enhances the waterproofing effect.

[0006] To achieve the above objectives, the technical solution adopted by this invention is a high-efficiency waterproof structure for construction joints in building buildings, comprising:

[0007] A strip base is connected at the designed location of the construction joint, and its length is equal to the designed length of the construction joint;

[0008] Two rigid baffles are used to block the pre-poured concrete and are respectively connected to the opposite sides of the top of the strip base. A pouring space for subsequent concrete is formed between the two rigid baffles. The top elevation of the rigid baffles is flush with the top design elevation of the pre-poured concrete.

[0009] An elastic sealing core is installed throughout the pouring space to expand under pressure during the subsequent pouring of concrete, thereby filling the pouring space with the subsequent concrete.

[0010] A limiting plate is used to prevent the elastic sealing core from expanding out of the pouring space. The limiting plate is located above the elastic sealing core and is connected to the two rigid baffles by a connector. The limiting plate is set in a horizontal direction and its top elevation is flush with the top elevation of the rigid baffles. A gap is reserved between the limiting plate and the two rigid baffles for the subsequent pouring of concrete into the pouring space.

[0011] A further improvement of the efficient waterproof structure for building construction joints in this invention is that the strip base is snapped into the existing reinforcing bars, and the bottom of the strip base is provided with first slots spaced apart along the length direction for snapping into the corresponding existing reinforcing bars.

[0012] A further improvement of the high-efficiency waterproofing structure for construction joints in this invention is that the elastic sealing core comprises:

[0013] A rubber core layer with compressive expansion properties;

[0014] A buffer layer, covering the outside of the rubber core layer, is used to absorb the vibration load of the pre-poured concrete to protect the rubber core layer.

[0015] An outer coating is applied to the outside of the buffer layer to enhance the seal with the subsequently poured concrete.

[0016] A further improvement of the high-efficiency waterproof structure for building construction joints in this invention is that the connector includes multiple inverted U-shaped reinforcing ribs, which are spaced apart along the length of the strip base. Each inverted U-shaped reinforcing rib spans above the elastic sealing core and is connected to two rigid baffles at both ends. The limiting plate is connected to the top of the multiple inverted U-shaped reinforcing ribs.

[0017] A further improvement of the efficient waterproof structure for building construction joints in this invention is that the elastic sealing core is wavy on both sides relatively close to the two rigid baffles, and each trough of the elastic sealing core is directly opposite an inverted U-shaped reinforcing rib.

[0018] A highly efficient waterproofing method for construction joints in building buildings includes the following steps:

[0019] Step 1: Provide the above-mentioned high-efficiency waterproofing structure for building construction joints;

[0020] Step 2: Connect the strip base to the designed location of the construction joint, so that the top elevation of the two rigid baffles is flush with the top design elevation of the pre-poured concrete;

[0021] Step 3: Pour pre-cast concrete on both sides of the strip base;

[0022] Step 4: Pour post-cast concrete into the pouring space from the gap until the elastic sealing core expands under pressure and fills the pouring space with the post-cast concrete.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] By setting a rubber core layer and using it in conjunction with the subsequent concrete to fill the pouring space, the waterproofing effect is improved. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a structural schematic diagram of the high-efficiency waterproofing structure for construction joints in building construction according to the present invention.

[0027] Figure 2 This is a front view of the high-efficiency waterproof structure for construction joints in building construction according to the present invention.

[0028] Figure 3 This is a detailed structural diagram of the elastic sealing core of the high-efficiency waterproof structure for building construction joints according to the present invention.

[0029] In the diagram: 1. Strip base; 2. Rigid baffle; 3. Existing steel reinforcement; 4. First slot; 5. Second slot; 6. Elastic sealing core; 601. Rubber core layer; 602. Buffer layer; 603. Outer coating; 7. Limiting plate; 8. Pre-cast concrete. Detailed Implementation

[0030] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0031] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, further illustrates the efficient waterproofing structure and waterproofing method for construction joints in building structures according to the present invention.

[0032] Please see Figures 1-3 As shown, the high-efficiency waterproofing structure for building construction joints includes:

[0033] Strip base 1 is connected at the designed location of the construction joint, and its length is equal to the designed length of the construction joint;

[0034] Two rigid baffles 2 are used to block the pre-poured concrete 8. They are respectively connected to the opposite sides of the top of the strip base 1. A pouring space for subsequent concrete is formed between the two rigid baffles 2. The top elevation of the rigid baffles 2 is flush with the top design elevation of the pre-poured concrete 8.

[0035] The elastic sealing core 6 is set throughout the pouring space and is used to expand under pressure during the subsequent pouring of concrete to fill the pouring space with the subsequent pouring concrete.

[0036] A limiting plate 7 is used to prevent the elastic sealing core 6 from expanding out of the pouring space. The limiting plate 7 is located above the elastic sealing core 6 and is connected to the two rigid baffles 2 by a connector. The limiting plate 7 is set in the horizontal direction and its top elevation is flush with the top elevation of the rigid baffles 2. A gap is reserved between the limiting plate 7 and the two rigid baffles 2 for the subsequent pouring of concrete into the pouring space.

[0037] By setting a rubber core layer 601 to fill the pouring space in conjunction with the subsequent concrete, the density of the pouring space is improved, thereby enhancing the waterproofing effect.

[0038] As the elastic sealing core 6 expands outwards during expansion, the limiting plate 7 prevents the elastic sealing core 6 from expanding upwards out of the pouring space, thus improving the density in conjunction with the subsequent concrete pouring.

[0039] Specifically, the size of the elastic sealing core 6 is smaller than the casting space.

[0040] Preferably, the strip base 1 is snapped into the existing steel bar 3, and the bottom of the strip base 1 is provided with first slots 4 at intervals along the length direction for snapping into the corresponding existing steel bars 3.

[0041] Specifically, the bottom of the strip base 1 is also provided with a second slot 5 for corresponding existing steel bars 3 to be engaged, and multiple first slots 4 are perpendicular to the second slots 5 and connected to the second slots 5.

[0042] Multiple existing steel bars 3 are arranged in a grid pattern, and multiple first slots 4 and second slots 5 form a cross-shaped slot, which ensures the connection stability of the strip base 1 and prevents the strip base 1 from shifting.

[0043] Preferably, the resilient sealing core 6 includes:

[0044] A rubber core layer 601 with compressive expansion properties;

[0045] The buffer layer 602 covers the outside of the rubber core layer 601 and is used to absorb the vibration load of the pre-poured concrete 8 to protect the rubber core layer 601.

[0046] An outer coating 603 is applied to the outside of the buffer layer 602 to enhance the seal with the subsequently poured concrete.

[0047] Specifically, the buffer layer 602 is a thermoplastic elastomer.

[0048] During the construction of the pre-poured concrete 8, a vibrator is needed for compaction. By setting up the buffer layer 602, the vibration load generated by the vibrator is diluted, so as to prevent the rubber core layer 601 from cracking due to vibration and affecting its use.

[0049] Specifically, the buffer layer 602 is alkali-resistant polyurethane or polymer-modified asphalt.

[0050] By setting the outer coating 603, the adhesion and sealing durability with the post-poured concrete are improved, the connection effect between the elastic sealing core 6 and the post-poured concrete is strengthened, and the waterproof performance is improved.

[0051] Preferably, the connector includes a plurality of inverted U-shaped reinforcing ribs, which are spaced apart along the length of the strip base 1. Each inverted U-shaped reinforcing rib spans above the elastic sealing core 6 and is connected at both ends to the two rigid baffles 2. The limiting plate 7 is connected to the top of the plurality of inverted U-shaped reinforcing ribs.

[0052] By setting the inverted U-shaped reinforcing rib, a connection foundation is provided for the limiting plate 7, and it is also anchored inside during the subsequent pouring of concrete, thereby improving the overall strength.

[0053] Preferably, the elastic sealing core 6 is wavy on both sides of the two rigid baffles 2, and each trough of the elastic sealing core 6 is directly opposite an inverted U-shaped reinforcing rib.

[0054] By setting the elastic sealing core 6 in a wave shape, when the elastic sealing core 6 is subsequently compressed and expanded, the multiple U-shaped reinforcing ribs prevent the elastic sealing core 6 from expanding and maintain its wave shape. This allows it to interlock with the subsequently poured concrete, improving the connection between them, increasing the density and waterproofing effect.

[0055] A highly efficient waterproofing method for construction joints in building buildings includes the following steps:

[0056] Step 1: Provide the above-mentioned high-efficiency waterproofing structure for building construction joints;

[0057] Step 2: Connect the strip base 1 to the designed position of the construction joint, so that the top elevation of the two rigid baffles 2 is flush with the top design elevation of the pre-poured concrete 8;

[0058] Step 3: Pour pre-cast concrete 8 on both sides of the strip base 1;

[0059] Step 4: Pour post-cast concrete into the pouring space from the gap until the elastic sealing core 6 expands under pressure and fills the pouring space with the post-cast concrete.

[0060] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A highly efficient waterproofing structure for construction joints in building construction, characterized in that, include: A strip base is connected at the designed location of the construction joint, and its length is equal to the designed length of the construction joint; Two rigid baffles are used to block the pre-poured concrete and are respectively connected to the opposite sides of the top of the strip base. A pouring space for subsequent concrete is formed between the two rigid baffles. The top elevation of the rigid baffles is flush with the top design elevation of the pre-poured concrete. An elastic sealing core is installed throughout the pouring space to expand under pressure during the subsequent pouring of concrete, thereby filling the pouring space with the subsequent concrete. A limiting plate is used to prevent the elastic sealing core from expanding out of the pouring space. The limiting plate is located above the elastic sealing core and is connected to the two rigid baffles via connectors. The connectors include multiple inverted U-shaped reinforcing ribs, which are spaced apart along the length of the strip base. Each inverted U-shaped reinforcing rib spans above the elastic sealing core and is connected to the two rigid baffles at both ends. The limiting plate is connected to the top of the multiple inverted U-shaped reinforcing ribs. The limiting plate is horizontal and its top elevation is flush with the top elevation of the rigid baffles. A gap is reserved between the limiting plate and the two rigid baffles for subsequent concrete to be injected into the pouring space.

2. The high-efficiency waterproof structure for construction joints in building construction as described in claim 1, characterized in that, The strip base is snapped into the existing steel bars, and the bottom of the strip base is provided with first slots spaced apart along the length direction for snapping into the corresponding existing steel bars.

3. The high-efficiency waterproof structure for building construction joints as described in claim 1, characterized in that, The elastic sealing core includes: A rubber core layer with compressive expansion properties; A buffer layer, covering the outside of the rubber core layer, is used to absorb the vibration load of the pre-poured concrete to protect the rubber core layer. An outer coating is applied to the outside of the buffer layer to enhance the seal with the subsequently poured concrete.

4. The high-efficiency waterproof structure for building construction joints as described in claim 1, characterized in that, The elastic sealing core is wavy on both sides closest to the two rigid baffles, and each trough of the elastic sealing core is directly opposite an inverted U-shaped reinforcing rib.

5. A highly efficient waterproofing method for construction joints in building construction, characterized in that, Including the following steps: Step 1: Provide the high-efficiency waterproofing structure for building construction joints as described in claim 1; Step 2: Connect the strip base to the designed location of the construction joint, so that the top elevation of the two rigid baffles is flush with the top design elevation of the pre-poured concrete; Step 3: Pour pre-cast concrete on both sides of the strip base; Step 4: Pour post-cast concrete into the pouring space from the gap until the elastic sealing core expands under pressure and fills the pouring space with the post-cast concrete.

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