Reinforcing structure of pool lower retaining wall and bottom plate joint

Abstract

The utility model discloses a kind of haunch reinforcing structure of pool lower part retaining wall and bottom plate junction, pool lower part retaining wall is sequentially divided into lower, middle, upper three sections, lower section retaining wall and structure bottom plate are integrally poured with bearing platform, lower section retaining wall forms the upper turning position of bearing platform, upper section retaining wall and pool bottom plate are integrally poured, upper section retaining wall upper portion forms the upper turning position of pool bottom plate, pool bottom plate and the female angle of pool lower part retaining wall are provided with haunch structure, haunch structure extends from upper section retaining wall to middle section retaining wall, waterstop steel plate is arranged between lower section retaining wall and middle section retaining wall, between middle section retaining wall and upper section retaining wall, between upper section retaining wall and pool wall, and embedded fixed connection, pool wall and structure layer embedded fixed connection.This structure can be integrally stressed in cooperation, avoids the risk of water leakage, and can disperse stress concentration.

Description

Technical Field

[0001] This utility model relates to swimming pools, specifically to a reinforced structure for connecting the lower retaining wall and the bottom plate of a swimming pool with a haunch. Background Technology

[0002] As swimming pools expand underground, the retaining walls beneath them must withstand both lateral soil pressure and water pressure. The joints between the pool walls and retaining walls, as well as the connections between the pool floor slab, structural floor slab, and structural layers, are crucial for both seepage prevention and stability. Ensuring seepage prevention and structural safety of the pool walls and retaining walls during excavation, support, and backfilling operations in multi-layered soil (such as plain fill, silty clay, and gravel layers) is a significant challenge in swimming pool construction. Currently, the following issues exist regarding seepage prevention and structural safety in swimming pools: First, the risk of leakage at the joints is high: traditional retaining walls and pool walls only use water-stop strips / sealant, and water seepage from multiple layers of soil can easily penetrate along the joints, leading to structural corrosion and pool water leakage; Second, stress concentration: The pool wall is connected to the pool floor and the structural floor at right angles, which can easily cause stress concentration due to water and soil pressure and pool water load, resulting in cracks in the pool wall. Third, poor structural coordination: The pool floor, structural floor and retaining wall are mostly "simply supported" or "weakly connected", which makes it difficult to work together to resist composite loads, and easily leads to retaining wall tilting and overall instability. Utility Model Content

[0003] The purpose of this utility model is to provide a reinforced structure for connecting the lower retaining wall and the bottom plate of a swimming pool, which can work together as a whole to avoid the risk of water leakage and can disperse stress concentration.

[0004] The technical solution adopted in this utility model is: A haunch-reinforced structure for connecting the lower retaining wall of a swimming pool to the bottom slab is disclosed. The lower retaining wall is divided into three sections: lower, middle, and upper. The lower retaining wall is integrally cast with the foundation and the structural bottom slab, forming the upturned part of the foundation. The upper retaining wall is integrally cast with the bottom slab of the pool, forming the upturned part of the bottom slab of the pool. A haunch structure is provided at the inside corner of the bottom slab and the lower retaining wall of the pool, extending from the upper retaining wall to the middle retaining wall. Water-stop steel plates are installed and embedded between the lower and middle retaining walls, between the middle and upper retaining walls, and between the upper retaining wall and the pool wall. The pool wall is embedded and embedded in the structural layer.

[0005] Preferably, the waterstop steel plate is welded and fixed to the longitudinal steel bars inside the wall on both sides.

[0006] Preferably, the waterstop steel plate is fully welded to the longitudinal reinforcing bars on both sides, and the weld length is not less than 10 times the diameter of the longitudinal reinforcing bars.

[0007] Preferably, the waterstop steel plate is made of Q235 steel, with a thickness of 4mm and a width of 400mm.

[0008] Preferably, the horizontal and vertical lengths of the haunch structure are equal, i.e., the slope is 1:1, and diagonal steel bars are arranged inside.

[0009] Preferably, the lateral and vertical lengths of the armhole structure are 500mm-600mm.

[0010] Preferably, the foundation is made of C35 concrete and has double-layer bidirectional longitudinal reinforcement with stirrups at intervals.

[0011] Preferably, the connection between the pool wall and the structural layer is made by a steel bar connector with a diameter of 20 mm.

[0012] Preferably, the concrete strength at the junction of the pool wall and the structural layer is one grade higher than that of the pool wall itself.

[0013] The beneficial effects of this utility model are: The lower retaining wall is cast integrally with the foundation and structural base slab, while the upper retaining wall is cast integrally with the pool floor slab. The lower, middle, and upper retaining walls, pool walls, and structural layers are sequentially and securely connected. The structural base slab, foundation, lower retaining wall, pool floor slab, pool walls, and structural layers can work together to bear the load. The foundation can enhance vertical stability in conjunction with the lower retaining wall and soil layer, while the structural base slab and structural layers can strengthen horizontal lateral stiffness, thus improving overall stability. The lower retaining wall forms the upturned part of the foundation, and the upper part of the upper retaining wall forms the upturned part of the pool floor slab. Water-stop steel plates are installed between the lower and middle retaining walls, between the middle and upper retaining walls, and between the upper retaining wall and the pool walls. This not only moves the joint position upward to avoid the corners, but also forms a "metal barrier" to block lateral water seepage and avoid the risk of leakage. The haunch structure can disperse stress concentration at the corners through a sloping transition, reducing the risk of cracking at the corners. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the haunch-reinforced structure connecting the lower retaining wall of the swimming pool to the bottom plate in an embodiment of this utility model.

[0015] In the diagram: 1-Pile cap; 2-Lower retaining wall of the swimming pool; 3-Waterstop steel plate; 4-Pool wall; 5-Pool floor slab; 6-Structural layer; 7-Backfill soil; 8-Structural floor slab; 9-Hammock structure. Detailed Implementation

[0016] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0017] This embodiment discloses a haunch-reinforced structure for connecting the lower retaining wall of a swimming pool to the bottom plate, such as... Figure 1As shown, the structure includes a foundation 1, a lower retaining wall 2, a water-stop steel plate 3, a pool wall 4, a pool bottom slab 5, a structural layer 6, a structural bottom slab 8, and a haunch structure 9. The lower retaining wall 2 is divided into three sections: lower, middle, and upper. The lower retaining wall is integrally cast with the foundation 1 and the structural bottom slab 8, forming the upward-turned portion of the foundation 1. The upper retaining wall is integrally cast with the pool bottom slab 5, forming the upward-turned portion of the pool bottom slab 5 at its upper part. A haunch structure 9 is installed at the internal corner of the pool bottom slab 5 and the lower retaining wall 2, extending from the upper retaining wall to the middle retaining wall. Water-stop steel plates 3 are installed and securely connected between the lower and middle retaining walls, between the middle and upper retaining walls, and between the upper retaining wall and the pool wall 4. The pool wall 4 is securely connected to the structural layer 6.

[0018] Based on the above plan: The lower retaining wall is cast integrally with the foundation 1 and the structural base slab 8, and the upper retaining wall is cast integrally with the pool base slab 8. The lower retaining wall, the middle retaining wall, the upper retaining wall, the pool wall 4, and the structural layer 6 are sequentially embedded and connected. The structural base slab 8, the foundation 1, the lower retaining wall 2, the pool base slab 5, the pool wall 4, and the structural layer 6 can work together to bear the load. The foundation 1 can work with the lower retaining wall 2 and the soil layer to improve vertical stability. The structural base slab 8 and the structural layer 6 can strengthen the horizontal lateral stiffness and improve the overall stability.

[0019] The lower retaining wall forms the upturned part of the foundation 1, and the upper part of the upper retaining wall forms the upturned part of the pool bottom slab 5. Water-stop steel plates 3 are installed between the lower retaining wall and the middle retaining wall, between the middle retaining wall and the upper retaining wall, and between the upper retaining wall and the pool wall 4. This not only allows the joint position to be moved up to avoid the inside and outside corners, but also allows the water-stop steel plates 3 to form a "metal barrier" to block the horizontal seepage of water and avoid the risk of leakage.

[0020] The haunch structure 9 can disperse stress concentration at the inside corner through a sloping transition, reducing the risk of cracking at the inside corner.

[0021] In this embodiment, preferably: the waterstop steel plate 3 is welded and fixed to the longitudinal steel bars inside the wall on both sides; the waterstop steel plate 3 is fully welded to the longitudinal steel bars on both sides, and the weld length is not less than 10 times the diameter of the longitudinal steel bars; the waterstop steel plate 3 is made of Q235 steel, with a thickness of 4mm and a width of 400mm.

[0022] In this embodiment, preferably: the horizontal length and vertical length of the haunch structure 9 are equal, that is, the slope is 1:1, and the interior is equipped with diagonal steel bars (φ16 HRB400, spacing 150mm); the horizontal length and vertical length of the haunch structure 9 are 500mm-600mm.

[0023] In this embodiment, preferably, the foundation 1 is made of C35 concrete, with double-layer bidirectional longitudinal reinforcement (φ20HRB400) inside and stirrups spaced apart (150mm spacing).

[0024] In this embodiment, preferably, the connection between the pool wall 4 and the structural layer 6 is made by a steel bar connector (JLG32 type), with a connecting steel bar diameter of 20 mm; the concrete strength at the connection between the pool wall 4 and the structural layer 6 is one grade higher than the concrete strength of the pool wall 4.

[0025] The lower retaining wall of the swimming pool was poured in three stages, and the construction process is as follows: First, install the reinforcement for the lower retaining wall, foundation 1, and structural base slab 8. Install the water-stop steel plate 3 on the upturned part of foundation 1, set up the formwork, and then cast the lower retaining wall, foundation 1, and structural base slab 8 in one piece. After casting, backfill and compact the backfill soil 7, ensuring that the backfill soil 7 does not exceed the height of foundation 1. Then, install the reinforcement for the middle retaining wall, install the water-stop steel plate 3 on the upper part of the middle retaining wall, set up the formwork, and then cast the middle retaining wall. After casting, backfill and compact the backfill soil 7, ensuring that the backfill soil 7 reaches the bottom elevation of the pool floor slab 5, and reserve space at the position of the haunch structure 9. Then, install the reinforcement for the upper retaining wall, pool floor slab 5, and haunch structure 9. Install the water-stop steel plate 3 on the upturned part of the pool floor slab 5, set up the formwork (the bottom formwork of the pool floor slab 5 and haunch structure 9 is formed by the backfill soil), and cast the upper retaining wall, pool floor slab 5, and haunch structure 9 in one piece.

[0026] After construction, the leakage rate was tested and found to be ≤0.02L / (m²·d), meeting the first-level waterproofing requirements. The width of the pool wall cracks was ≤0.1mm, the structural displacement was ≤2mm, and the ability to resist composite loads was improved by 45%.

[0027] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A haunch-reinforced structure for connecting the lower retaining wall of a swimming pool to the bottom slab, characterized in that: The pool's lower retaining wall is divided into three sections: lower, middle, and upper. The lower retaining wall is cast integrally with the foundation and structural base slab, forming the upturned part of the foundation. The upper part of the upper retaining wall forms the upturned part of the pool floor slab. A haunch structure is installed at the inside corner of the pool floor slab and the lower retaining wall. The upper retaining wall, pool floor slab, and haunch structure are cast integrally. The haunch structure extends from the upper retaining wall to the middle retaining wall. Water-stop steel plates are installed and embedded between the lower and middle retaining walls, between the middle and upper retaining walls, and between the upper retaining wall and the pool wall. The pool wall is embedded and embedded in the structural layer.

2. The haunch-reinforced structure for connecting the lower retaining wall and the bottom plate of the swimming pool as described in claim 1, characterized in that: The water-stop steel plate is welded and fixed to the longitudinal steel bars inside the wall on both sides.

3. The reinforced structure for connecting the lower retaining wall of the swimming pool to the bottom plate as described in claim 2, characterized in that: The waterstop steel plate is fully welded to the longitudinal reinforcing bars on both sides, and the weld length is not less than 10 times the diameter of the longitudinal reinforcing bars.

4. The reinforced structure for connecting the lower retaining wall of the swimming pool to the bottom plate as described in any one of claims 1 to 3, characterized in that: The waterstop steel plate is made of Q235 steel, with a thickness of 4mm and a width of 400mm.

5. The haunch-reinforced structure for connecting the lower retaining wall and the bottom plate of the swimming pool as described in claim 1, characterized in that: The haunch structure has equal horizontal and vertical lengths, i.e., a slope of 1:1, and is internally reinforced with diagonal steel bars.

6. The haunch-reinforced structure for connecting the lower retaining wall and the bottom plate of the swimming pool as described in claim 5, characterized in that: The horizontal and vertical lengths of the armhole structure are 500mm-600mm.

7. The haunch-reinforced structure for connecting the lower retaining wall and the bottom plate of the swimming pool as described in claim 1, characterized in that: The foundation is made of C35 concrete and is internally reinforced with double-layer bidirectional longitudinal bars and intermittent stirrups.

8. The haunch-reinforced structure for connecting the lower retaining wall and the bottom plate of the swimming pool as described in claim 1, characterized in that: The connection between the pool wall and the structural layer is made of steel bar connectors with a diameter of 20 mm.

9. The haunch-reinforced structure for connecting the lower retaining wall and the bottom plate of the swimming pool as described in claim 8, characterized in that: The concrete strength at the junction of the pool wall and the structural layer is one grade higher than that of the pool wall itself.

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