Assembly type composite structure cavity formwork and shear wall

Abstract

The utility model discloses an assembly type composite structure cavity formwork and a shear wall, which comprise an inner acanthus and an outer acanthus, a steel frame main body is fixed between the inner acanthus and the outer acanthus, steel wire meshes are fixed on both sides of the steel frame main body, the steel frame main body comprises uniformly distributed steel columns, shear nails are fixed on the outer walls of both sides of the steel columns, the shear nails comprise nail necks, and the nail necks are connected with the steel frame main body. Nail caps are integrally formed at the ends, away from the steel column, of the nail necks, and the multiple nail caps are embedded into the inner acanthus and the outer acanthus correspondingly. The steel wire meshes are fixed to the two sides of the steel frame body, and the nail caps of the shear nails fixed to the steel columns are embedded into the inner acanthus and the outer acanthus, so that the steel frame, the steel wire meshes and the shear nails are connected into a whole with the inner acanthus and the outer acanthus; the inner acanthus and the outer acanthus can effectively resist lateral pressure during concrete pouring and deformation during hoisting and transportation, the defects in the prior art are successfully overcome, and meanwhile the inner acanthus and the outer acanthus can be used as a plaster layer and a decoration layer of a wall.

Description

Technical Field

[0001] The utility model relates to the technical field of building formwork, in particular to an assembled combined structure cavity formwork and shear wall. Background Technique

[0002] The building cavity formwork is a technology used in building construction. It generally refers to the formwork or mold that forms a cavity in the building structure. This technology can be used for structural elements such as shear walls, construction columns, and ring beams, thus avoiding the traditional formwork process and improving the construction efficiency and quality. This prefabricated cavity formwork construction technology can solve some problems in traditional construction, such as difficult formwork, material waste, and low construction efficiency. Traditional prefabricated building PC components adopt solid structures or double-skin wall structures, which also solve the above problems to a certain extent. However, the processes of hoisting, installing, and joint pouring of traditional prefabricated buildings are complex, with numerous embedded parts and high construction costs.

[0003] In practical applications, the cavity formwork can be made of various materials, including plastics, concrete, etc., and they can be customized according to specific engineering requirements. For example, the SPCS cavity wall is a hollow prefabricated component made of a formed steel reinforcement cage and concrete integrally. After being installed in place on site, concrete is poured into the cavity. However, there are problems such as unsatisfactory integrity between the cast-in-place concrete and the prefabricated component, often occurring formwork swelling and shell peeling, and the leaf plates are made of ordinary concrete with too thick a thickness and poor quality, resulting in high transportation and installation costs. Therefore, it is urgent to design a new type of assembled combined structure cavity formwork and shear wall to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an assembled combined structure cavity formwork and shear wall to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An assembled combined structure cavity formwork includes an inner leaf plate and an outer leaf plate. A steel frame main body is fixed between the inner leaf plate and the outer leaf plate. Steel wire meshes are fixed on both sides of the steel frame main body. The steel frame main body includes evenly distributed steel columns. Shear studs are fixed on the outer walls on both sides of the steel columns. The shear studs include stud necks, and one end of the stud neck away from the steel column is integrally formed with stud heads. A plurality of the stud heads are respectively embedded in the inner parts of the inner leaf plate and the outer leaf plate. Connecting rings are evenly fixed on the outer walls of the inner leaf plate and the outer leaf plate close to each other.

[0007] Further, a top beam and a bottom beam are respectively fixed at the top and bottom of the steel column, and both the top beam and the bottom beam are located between the inner leaf plate and the outer leaf plate.

[0008] Furthermore, the steel frame body is made of one of cold-formed thin-walled steel sections or formed steel plates, and a galvanized layer is provided on the outer wall of the steel frame body.

[0009] Furthermore, the thickness of the inner leaf plate and the outer leaf plate is 10-20 mm, and the inner leaf plate and the outer leaf plate are made of one of UHPC ultra-high performance concrete, ECC high-performance fiber-reinforced cement-based composite material, or special mortar.

[0010] Furthermore, reinforcing bar holes are opened on the outer walls of the steel columns, top beams, and bottom beams, and grouting holes are opened on the outer walls of the steel columns, top beams, and bottom beams.

[0011] Furthermore, blind rivet nuts are riveted on the outer wall of the steel frame body, a clamping member is sleeved outside the wire mesh, an insertion hole is opened on the outer wall of the clamping member, a connecting bolt is inserted into the insertion hole, and the connecting bolt is in threaded connection with the blind rivet nut.

[0012] An assembled composite structure shear wall, a heat preservation board is arranged between every two adjacent steel columns, and the heat preservation board is located between the inner leaf plate and the outer leaf plate.

[0013] In the above technical solution, for an assembled composite structure cavity formwork and shear wall provided by the present utility model, the beneficial effects are as follows: by fixing wire meshes on both sides of the steel frame body and embedding the nail caps of the shear studs fixed to the steel columns inside the inner leaf plate and the outer leaf plate, the steel frame, the wire mesh, and the shear studs are connected to the inner and outer leaf plates to form a whole, which can effectively resist the lateral pressure during concrete pouring and resist the deformation during hoisting and transportation, successfully solving the deficiencies in the prior art; in addition, by arranging the heat preservation board between the inner leaf plate and the outer leaf plate, when it is used as a shear wall, it can play a very good heat preservation effect, and the inner leaf plate and the outer leaf plate can serve as a plastering layer or a decorative layer, and there is no need to plaster or decorate after pouring and forming, greatly reducing the construction cost. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of an assembled composite structure cavity formwork and shear wall of the present utility model.

[0016] Figure 2 It is a schematic diagram of the top beam structure provided by an embodiment of an assembled composite structure cavity formwork and shear wall of the present utility model.

[0017] Figure 3 The enlarged structure schematic diagram at position A provided for an embodiment of an assembled combined structure cavity formwork and shear wall of the present utility model.

[0018] Figure 4 The structure schematic diagram of the insulation board provided for an embodiment of an assembled combined structure cavity formwork and shear wall of the present utility model.

[0019] Figure 5 The enlarged structure schematic diagram at position B provided for an embodiment of an assembled combined structure cavity formwork and shear wall of the present utility model.

[0020] Explanation of reference numerals:

[0021] 1 Inner leaf plate, 2 Outer leaf plate, 3 Steel column, 4 Top beam, 5 Bottom beam, 6 Wire mesh, 7 Shear stud, 8 Grout hole, 9 Rebar hole, 10 Nail neck, 11 Nail head, 12 Rivet nut, 13 Connecting bolt, 14 Clip, 15 Intersection hole, 16 Insulation board, 17 Connecting ring. Specific implementation manners

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below in conjunction with the accompanying drawings.

[0023] Such as Figures 1-5As shown in the figure, a prefabricated composite structure cavity formwork provided by an embodiment of the present utility model includes an inner leaf plate 1 and an outer leaf plate 2. The inner leaf plate 1 and the outer leaf plate 2 are made of UHPC ultra-high performance concrete or ECC high-performance fiber-reinforced cement-based composite material, so as to improve the stiffness of the inner and outer leaf plates and enhance the anti-deformation ability, realizing that the cavity formwork has excellent properties of high strength, high toughness and high durability. A steel frame main body is fixed between the inner leaf plate 1 and the outer leaf plate 2. Steel wire meshes 6 are fixed on both sides of the steel frame main body, thereby improving the stability of the steel frame main body. The steel frame main body includes uniformly distributed steel columns 3. The cross-section of the steel column 3 is a "U" - shaped structure, making the steel column 3 have stronger bearing capacity and anti-bending ability. Shear studs 7 are fixed on the outer walls on both sides of the steel column 3. The shear studs 7 are preferably fixed to the steel column 3 by riveting. The shear stud 7 includes a stud neck 10, and a stud head 11 is integrally formed at one end of the stud neck 10 away from the steel column 3. A number of stud heads 11 are respectively embedded in the interiors of the inner leaf plate 1 and the outer leaf plate 2. The inner leaf plate 1 and the outer leaf plate 2 are fixed to the steel frame main body by pouring. When the inner leaf plate 1 and the outer leaf plate 2 are cast and formed, the stud head 11 is extended into the concrete of the inner leaf plate 1 and the outer leaf plate 2. When the inner leaf plate 1 and the outer leaf plate 2 solidify, the stud head 11 can be embedded in the interiors of the inner leaf plate 1 and the outer leaf plate 2. At the same time, the shear stud 7 can also be a self-tapping screw, so that the self-tapping screw can be directly fixed to the steel column 3 by means of threads, thereby making the fixing of the shear stud 7 more convenient; Uniformly distributed connecting rings 17 are fixed on the outer walls of the inner leaf plate 1 and the outer leaf plate 2 close to each other. The connecting rings 17 pass through the steel wire mesh 6 and extend into the interior of the steel frame main body. When pouring concrete between the inner leaf plate 1 and the outer leaf plate 2, the use of the connecting rings 17 and the shear studs 7 can improve the bonding performance between the inner leaf plate 1 and the outer leaf plate 2 and the concrete, and can effectively resist the lateral pressure during concrete pouring and resist the deformation during hoisting and transportation, preventing the occurrence of formwork bulging and shell peeling during pouring.

[0024] In another embodiment provided by the present utility model, a top beam 4 and a bottom beam 5 are respectively fixed to the top and bottom of the steel column 3. Both the top beam 4 and the bottom beam 5 are located between the inner leaf plate 1 and the outer leaf plate 2. The top beam 4 and the bottom beam 5 are used to further reinforce the steel column 3. At the same time, the cross-sections of the steel column 3, the top beam 4 and the bottom beam 5 are the same, so that the steel frame main body is composed of profiles of a unified specification, saving the manufacturing cost of the profiles. The steel frame main body is made of one of cold-formed thin-walled steel or formed steel plates. When cold-formed thin-walled steel is used, the cold-formed thin-walled steel has the effect of being easy to process, improving the production efficiency of the steel frame main body. When formed steel plates are used, a galvanized layer is provided on the outer wall of the steel frame main body to prevent the steel frame main body from rusting. The thickness of the inner leaf plate 1 and the outer leaf plate 2 is 10-20 mm, preferably 10 mm. The inner leaf plate 1 and the outer leaf plate 2 are made of one of UHPC ultra-high performance concrete, ECC high-performance fiber-reinforced cementitious composite material or special mortar. Compared with conventional cement boards, the UHPC ultra-high performance concrete board can effectively reduce the thickness of the inner and outer leaf plates, making the thickness of the inner and outer leaf plates only 10-20 mm, saving material costs and also reducing transportation and assembly costs. Reinforcing holes 9 are opened on the outer walls of the steel column 3, the top beam 4 and the bottom beam 5. Through the reinforcing holes 9, reinforcing bars distributed in a staggered manner can be inserted inside the steel frame main body for reinforcement, making the strength of the wall formed by the combination of concrete and reinforcing bars higher. Grout holes 8 are opened on the outer walls of the steel column 3, the top beam 4 and the bottom beam 5. The grout holes 8 are used to pour concrete into the cavity formwork, and the grout holes located on the outermost side of the formwork need to be blocked when pouring concrete. Rivet nuts 12 are riveted on the outer wall of the steel frame main body. A clamping member 14 is sleeved outside the wire mesh 6. The clamping member 14 can be conveniently sleeved with the wire mesh 6. A through hole 15 is opened on the outer wall of the clamping member 14, and a connecting bolt 13 is inserted into the through hole 15. The connecting bolt 13 is threadedly connected with the rivet nut 12. By threadedly connecting the connecting bolt 13 with the rivet nut 12, it is more firm than directly threadedly connecting the connecting bolt 13 with the steel frame main body. At the same time, a ring protruding to one side is integrally formed on the clamping member 14, so that the ring can form a certain distance between the nut of the connecting bolt 13 and the clamping member 14. When pouring the inner leaf plate 1 and the outer leaf plate 2, the nut of the connecting bolt 13 can be embedded in the inner leaf plate 1 or the outer leaf plate 2, thereby making the connection between the inner leaf plate 1 and the outer leaf plate 2 and the steel frame main body more firm.

[0025] For an assembled composite structure shear wall, a heat preservation board 16 is arranged between adjacent two steel columns 3. The heat preservation board 16 is located between the inner leaf plate 1 and the outer leaf plate 2. By arranging the heat preservation board between the inner leaf plate 1 and the outer leaf plate 2, it can play a good heat preservation effect when used as a shear wall, and the inner leaf plate 1 and the outer leaf plate 2 can serve as a plastering layer or a decorative layer, and there is no need to plaster or decorate after casting, greatly reducing the construction cost.

[0026] Only some exemplary embodiments of the present utility model are described by way of illustration. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above-mentioned drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. An assembled combined structure cavity formwork, characterized in that, It includes an inner leaf plate (1) and an outer leaf plate (2). A steel frame main body is fixed between the inner leaf plate (1) and the outer leaf plate (2). Steel wire meshes (6) are fixed on both sides of the steel frame main body. The steel frame main body includes evenly distributed steel columns (3). Shear studs (7) are fixed on the outer walls on both sides of the steel column (3). The shear stud (7) includes a stud neck (10). A stud cap (11) is integrally formed at one end of the stud neck (10) away from the steel column (3). Several stud caps (11) are respectively embedded in the inner parts of the inner leaf plate (1) and the outer leaf plate (2). Uniformly distributed connecting rings (17) are fixed on the outer walls of the inner leaf plate (1) and the outer leaf plate (2) close to each other.

2. The prefabricated combined structure cavity formwork according to claim 1, characterized in that, A top beam (4) and a bottom beam (5) are respectively fixed at the top and bottom of the steel column (3). The top beam (4) and the bottom beam (5) are both located between the inner leaf plate (1) and the outer leaf plate (2).

3. The prefabricated combined structure cavity formwork according to claim 1, characterized in that, The steel frame main body is made of one of cold-formed thin-walled steel sections or formed steel plates. A galvanized layer is provided on the outer wall of the steel frame main body.

4. The prefabricated combined structure cavity formwork according to claim 2, characterized in that, The inner leaf plate (1) and the outer leaf plate (2) have a thickness of 10 - 20 mm, and the inner leaf plate (1) and the outer leaf plate (2) are made of one of UHPC ultra-high performance concrete, ECC high-performance fiber-reinforced cement-based composite material, or special mortar.

5. The prefabricated combined structure cavity formwork according to claim 2, characterized in that, Reinforcing holes (9) are opened on the outer walls of the steel column (3), the top beam (4), and the bottom beam (5). Grout holes (8) are opened on the outer walls of the steel column (3), the top beam (4), and the bottom beam (5).

6. The prefabricated combined structure cavity formwork according to claim 2, characterized in that, Riveting nuts (12) are riveted on the outer wall of the steel frame main body. A clamping member (14) is sleeved outside the steel wire mesh (6). A through hole (15) is opened on the outer wall of the clamping member (14). A connecting bolt (13) is inserted into the through hole (15). The connecting bolt (13) is in threaded connection with the riveting nut (12).

7. An assembled composite structure shear wall, comprising an assembled composite structure cavity formwork according to any one of claims 1-5, characterized in that, A heat preservation board (16) is arranged between adjacent two steel columns (3). The heat preservation board (16) is located between the inner leaf plate (1) and the outer leaf plate (2).

Images