Staggered joint structure

Abstract

The utility model relates to the field of construction joints, in particular to a staggered joint type joint structure. A rubber waterstop is located in the center of the pouring structure, the splicing position of the single-side pouring structure is arranged to be an oblique groove, a protruding staggered joint is arranged in the full-length range of a joint and deflects by a certain angle relative to the horizontal plane, the deflection angles of the staggered joints on the two sides of the pouring structure are opposite, and the staggered joints of the pouring structures on the two sides are complementary. The joint structure can limit the displacement difference in the vertical direction and the normal direction, and water leakage of a construction joint is prevented.

Description

Technical Field

[0001] The utility model relates to the field of construction joints, in particular to a staggered joint structure. Background Art

[0002] The pool structure in the water supply and drainage project, the subway station in the underground project, the underground sewage treatment plant and other structures need to be set up with a complete seam after the structure exceeds a certain length. When setting the seam conventionally, a flat seam is made directly, and a rubber water stop is buried in the middle, or an external water stop is used. The steel bars on both sides are completely disconnected at the water stop, forming a structural form in which the two sides do not transmit force to each other. In the structural design, the structures on both sides can be regarded as free edges at the complete seam. Under this constraint, the force is calculated and finally used for the reinforcement design of the structure. However, flat seams often bring a series of problems. For example, when the foundation conditions are poor and no foundation treatment or pile foundation is adopted, or when the structures on both sides of the complete seam are asymmetrical and the force difference is large, it is very likely that a displacement difference will occur at the joint, which may be a normal displacement difference or a vertical displacement difference. If the wall panel is the outer wall of a pool or the outer wall of an underground structure, the waterproofing requirements are very high. In the case of displacement difference in the structure, water leakage will occur at the joint, causing inconvenience in the use of the entire structure. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a structural joint connection method that can limit the displacement difference. Through the staggered joint method, the structures on both sides can remain free in the horizontal direction of the wall panels, and the displacement difference of the structures on both sides in the vertical and normal directions can be limited.

[0004] The utility model specifically adopts the following technical means:

[0005] A staggered joint structure, in which a rubber waterstop is located in the center of the cast structure, the joint of the single-sided cast structure is set as an oblique slope, and a raised staggered joint is set within the entire length of the joint. The staggered joint is deflected at a certain angle relative to the horizontal plane, the staggered deflection angles on both sides of the cast structure are opposite, and the staggered joints of the cast structures on both sides are complementary.

[0006] Furthermore, the contact surfaces of the casting structure on both sides are provided with caulking plates.

[0007] Furthermore, the complementary staggered contact surfaces are provided with linoleum cloth for waterproofing the staggered gaps.

[0008] Furthermore, a staggered opening is respectively provided on the front side and the rear side of the casting structure on one side.

[0009] Furthermore, the offset is deflected by 10° to 20° relative to the horizontal plane.

[0010] Furthermore, the oblique groove forms an angle of 70 to 110 degrees with the rubber waterstop.

[0011] Furthermore, a sealing layer is provided outside the caulking plate;

[0012] Furthermore, anchor steel bars are provided above and below the staggered openings of the single-sided cast structure to enhance the strength of the structure.

[0013] The utility model has the following beneficial effects:

[0014] The structures on both sides of the joint adopt non-flat joints, which are staggered at a certain angle up and down, so that the staggered edges of the cast structures on both sides are complementary. This design helps to enhance the limiting function of the joint and prevent the displacement difference of the structures on both sides in the vertical and normal directions.

[0015] This structure can be formed completely on one side and poured first, or formed on both sides at the same time, with a caulking plate in the middle and poured at the same time. This formwork method is flexible and can be selected according to specific circumstances, which helps to improve construction efficiency.

[0016] The structure can allow multiple staggered openings to be set according to the height of the wall panels, which helps to adapt to different structural heights and has high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the steel bars at the upper water stop strip of the utility model;

[0019] Figure 3 It is a cross-sectional schematic diagram of the steel bars at the middle and lower water stop strips of the utility model;

[0020] Figure 4 It is a schematic diagram of the formwork at the joint in the utility model.

[0021] Numbers in the figure:

[0022] 1. Filling plate; 2. Rubber waterstop; 3. Casting structure; 31. First pouring structure; 32. Post pouring structure; 4. Tarpaulin; 5. Oblique groove; 6. Anchor steel bar; 7. Formwork. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The structure often has displacement differences at the joints due to various factors. When the structure has displacement differences, water leakage is likely to occur at the joints, causing inconvenience in the use of the entire structure.

[0025] See also Figure 1-3 The structural diagram of the present invention provides a structural joint connection method that can limit the displacement difference, that is, multiple staggered joints are set within the full length of the joint, the staggered joints are offset by a certain angle, and the oblique groove 5 is set to maintain a certain angle with the rubber water stop 2. This method changes the conventional flat seam into a staggered seam, the purpose of which is to allow the structures on both sides to remain free to expand and contract in the horizontal direction of the wall panel, while avoiding mutual sliding and dislocation in the vertical and normal directions, thereby limiting the vertical and normal displacement difference of the structures on both sides.

[0026] In this embodiment, a rubber water stop 2 is installed at the center of the casting structure 3 to ensure that it is located at the center of the entire length of the joint.

[0027] In this embodiment, an oblique groove 5 is provided at the joint of the single-side cast structure 3 to ensure that the oblique groove 5 forms an angle of 70 to 110 degrees with the rubber water stop 2 .

[0028] In this embodiment, a raised staggered opening is formed within the entire length of the joint section, and the staggered opening is designed to deflect a certain angle relative to the horizontal plane, and the angle range is 10° to 20°. At the same time, it is ensured that the staggered openings on both sides of the casting structure 3 have opposite deflection angles, so as to achieve complementary staggered openings of the casting structures 3 on both sides.

[0029] In this embodiment, one or more staggered openings may be provided on the front and rear sides of the single-sided casting structure 3 to ensure tight fit with another casting structure 3 .

[0030] In this embodiment, a caulking plate 1 is arranged on the contact surface of the cast structures 3 on both sides to improve the sealing of the joint. The caulking plate 1 can be made of polyethylene low-foaming caulking material or other similar materials, and its purpose is to buffer the temperature stress of the structures on both sides.

[0031] In this embodiment, the complementary staggered contact surfaces are provided with tarpaulin 4 to further separate the casting structures 3 on both sides for the purpose of waterproofing and also to prevent adhesion and sticking during concrete pouring.

[0032] In this embodiment, a sealing layer is arranged outside the caulking plate 1 to increase the sealing property of the joint and prevent water penetration. The sealing layer is made of two-component polysulfide sealing paste, polyurea resin or other materials with similar properties, and its purpose is to close the water seepage path of the structures on both sides of the joint.

[0033] In this embodiment, anchor steel bars 6 are arranged above and below the staggered joint of the single-sided cast structure 3 to increase the stability and tensile strength of the joint.

[0034] This embodiment can be cast by the following methods:

[0035] Option 1: The structures on both sides are cast in sequence:

[0036] When the wall panel is supported, the formwork is supported along the staggered shape, and a layer of linoleum cloth 4 is set on the horizontal surface of the staggered to separate the two side structures, and a rubber water stop 2 is set in the middle of the upper and lower wooden forms of the staggered. Then pour on one side first, wait for the initial setting of concrete, remove the formwork 7, keep the middle linoleum cloth 4, clean the stains on the water stop, place the caulking board 1 on the joint structure, and use the caulking board 1 as the template of the other side structure, and then pour the other side structure.

[0037] Option 2: Casting structures on both sides simultaneously:

[0038] When the siding wall is made of full-length wooden formwork, the rubber water stop 2 and the caulking plate 1 are placed at the joints according to the contour of the offset, a layer of felt cloth 4 is placed on the horizontal surface of the offset, and the caulking plate 1 is fixed with additional anchoring steel bars 6 on both sides. After the formwork is set, the concrete on both sides is poured simultaneously. After the concrete has initially set, the formwork 7 is removed, and finally the sealing material is squeezed into the edge of the caulking plate 1 at the joint.

[0039] Through the above implementation, the design requirements of the staggered joint structure can be effectively achieved, and the sealing, stability and durability of the joint can be improved. Such a structural design is suitable for various cast structures, especially for engineering fields with water-stopping requirements, such as water supply and drainage engineering, underground engineering and other fields.

Claims

1. A staggered joint structure, characterized in that: A rubber water stop (2) is located at the center of the cast structure (3). The joint of the single-sided cast structure (3) is set as an oblique groove (5). A raised staggered groove is set within the entire length of the joint. The staggered groove is deflected at a certain angle relative to the horizontal plane. The staggered grooves on both sides of the cast structure (3) have opposite deflection angles, and the staggered grooves of the cast structures (3) on both sides are complementary.

2. The staggered joint structure according to claim 1, characterized in that: The contact surfaces of the casting structure (3) on both sides are provided with caulking plates (1).

3. The staggered joint structure according to claim 1, characterized in that: The complementary staggered contact surfaces are provided with linoleum cloth (4).

4. The staggered joint structure according to claim 1, characterized in that: The front side and the rear side of the single-sided casting structure (3) are each provided with an offset.

5. The staggered joint structure according to claim 1, characterized in that: The offset is deflected by 10° to 20° relative to the horizontal plane.

6. The staggered joint structure according to claim 1, characterized in that: The oblique groove (5) forms an angle of 70 to 110 degrees with the rubber water stop strip (2).

7. The staggered joint structure according to claim 1, characterized in that: A sealing layer is arranged outside the caulking plate (1).

8. The staggered joint structure according to claim 1, characterized in that: Anchor steel bars (6) are arranged above and below the staggered opening of the single-side cast structure (3).

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