A new type of prefabricated composite wall structure

Abstract

The utility model relates to the technical field of building construction, specifically a novel prefabricated composite wall structure, comprising: two prefabricated wall panels parallel to each other, a gap for concrete pouring is reserved between the two prefabricated wall panels, the upper half between the two prefabricated wall panels is installed with truss steel bars, and the lower half is installed with welded steel bars; a waterstop steel plate is arranged between the composite wall and the foundation base, and the surface of the waterstop steel plate is provided with suspension steel bars, and the upper ends of the suspension steel bars are bent and buckled on the outside of the welded steel bars; the beneficial effects are: by arranging truss steel bars in the upper half of the composite wall and welding steel bars in the lower half, a waterstop steel plate is arranged between the composite wall and the foundation base, and the waterstop steel plate is suspended and installed below the welded steel bars through the suspension steel bars, the position of the waterstop steel plate itself is stable, and it is not easy to deviate when pouring concrete, ensuring that the waterproof construction is more convenient, and concrete is continuously poured in the cavity of the composite wall to meet the stress performance of the wall.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a novel prefabricated composite wall structure. Background Art

[0002] Prefabricated composite walls are important components used in building structures, generally divided into reinforced welded shear walls and truss shear walls.

[0003] Among them, the main body of the reinforced welded shear wall is connected by welded steel bars, and the main body of the truss-type shear wall is connected by trusses.

[0004] However, the steel welded shear wall has low mechanical performance, large lateral deformation under horizontal action, high cost, and requires a lot of steel waste, and is difficult to construct; while the truss retaining wall has high mechanical performance and small lateral deformation under horizontal action, but it is inconvenient to install at the construction site, easily interferes with the shear wall reinforcement, and is difficult to put in place, affecting the construction speed of the entire building. To this end, the utility model proposes a new prefabricated composite wall structure to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a novel prefabricated composite wall structure to solve the problem in the above-mentioned background technology that the traditional composite wall is difficult to take into account both its own strength and construction portability.

[0006] To achieve the above object, the utility model provides the following technical solution: a new prefabricated composite wall structure, comprising:

[0007] Two prefabricated wall panels are parallel to each other, and a gap is left between the two prefabricated wall panels for pouring concrete. The upper half between the two prefabricated wall panels is installed with truss steel bars, and the lower half is installed with welded steel bars;

[0008] The composite wall is installed above the foundation base, a waterstop steel plate is arranged between the composite wall and the foundation base, and the waterstop steel plate is located between two prefabricated wall panels, and suspension steel bars are arranged on the surface of the waterstop steel plate. The upper end of the suspension steel bar is bent and buckled on the outside of the welded steel bar, and the upper edge of the waterstop steel plate is against the welded steel bar.

[0009] Preferably, the upper and lower edges of the waterstop steel plate are bent to form waterstop flanges, the suspension steel bars are welded and fixed to the surface of the waterstop steel plate, and the upper and lower halves of the waterstop steel plate are respectively located in the composite wall and the foundation base.

[0010] Preferably, a plurality of U-shaped steel bars are arranged between the two prefabricated wall panels and are horizontally distributed at equal intervals. The U-shaped steel bars are arranged inverted, and both ends of the U-shaped steel bars are respectively embedded in the two prefabricated wall panels. Horizontal steel bars perpendicular to the U-shaped steel bars are embedded in the prefabricated wall panels, and the horizontal steel bars are tied and fixed to the U-shaped steel bars.

[0011] Preferably, additional steel bars are embedded in the bottom of the prefabricated wall panel, the welded steel bars are arranged horizontally, and both ends are bent to form a horizontal "V" shape, and the ends of the welded steel bars are fastened to the cross-connections between the additional steel bars and the horizontal steel bars.

[0012] Preferably, an additional mesh is provided inside the basic base, and the additional mesh is composed of a plurality of steel bars welded to each other in a staggered "well" shape.

[0013] Preferably, an extended connecting rib is embedded inside the foundation base, the extended connecting rib is vertically arranged, and the upper end of the extended connecting rib extends to the bottom between two prefabricated wall panels, and the upper end of the extended connecting rib is welded and fixed to the welded steel bar.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides truss steel bars at the upper half of the composite wall and welded steel bars at the lower half, and a waterstop steel plate is provided between the composite wall and the foundation base. The waterstop steel plate is suspended and installed below the welded steel bars through the suspension steel bars. The waterstop steel plate has a stable position and is not prone to position deviation when pouring concrete, ensuring that the waterproof construction is more convenient. The welded steel bars and truss steel bars are pre-embedded in the composite wall in advance, and concrete is continuously poured in the cavity of the composite wall without any seams or holes, thereby meeting the stress performance of the wall. Both prefabricated wall panels of the composite wall can be prefabricated in the factory, and only hoisting is required at the construction site. The prefabricated components are simply placed in place on site, which improves the construction speed and saves on-site labor and mold material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 3 This is a schematic diagram of the interior of the composite wall structure of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the water-stop steel plate and suspended steel bar structure of the utility model.

[0020] In the figure: 1. Prefabricated wall panel; 2. Truss steel bars; 3. Welded steel bars; 4. U-shaped steel bars; 5. Horizontal steel bars; 6. Additional steel bars; 7. Foundation base; 71. Additional mesh; 8. Extended connecting bars; 9. Waterstop steel plate; 91. Waterstop flange; 10. Suspension steel bars. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0025] See also Figures 1 to 4 , the utility model provides a technical solution:

[0026] Embodiment 1, a novel prefabricated composite wall structure, comprises: two prefabricated wall panels 1 parallel to each other.

[0027] Specifically, a gap for pouring concrete is reserved between the two prefabricated wall panels 1. The upper half of the two prefabricated wall panels 1 is installed with truss steel bars 2, and the lower half is installed with welded steel bars 3. The truss steel bars 2 are a structure known in the prior art. The truss steel bars 2 have high stress performance, small lateral deformation under horizontal action, and high strength. Moreover, since the truss steel bars 2 are only located in the upper half of the prefabricated wall panels 1, as shown in FIG. Figure 1 As shown, the two prefabricated wall panels 1 of the composite wall are placed above the foundation base 7, and the truss steel bars 2 will not cause significant interference to the steel bars between the composite wall and the foundation base 7, which can reduce the construction difficulty while ensuring the strength of the prefabricated wall panels 1. In addition, the welded steel bars 3 are arranged in the lower half of the composite wall, which can ensure that the steel bars on the foundation base 7 will not be subject to much interference during the connection process between the composite wall and the foundation base 7, thereby ensuring that the composite wall is placed more conveniently. The outer leaf thickness of the composite wall of the device is 80mm, the inner leaf thickness is 50mm, and the spacing between the middle cavities is 200mm. In the production of the wall body, the welded steel bars 3 are used within the range of 1.6Lae (i.e., the seismic anchorage length of the longitudinal tensile steel bars) at the bottom of the composite wall, and the truss steel bars 2 are used in the remaining positions. The use of a new type of prefabricated composite wall not only ensures high force performance but also facilitates installation on the construction site, which can increase the construction speed of the entire building.

[0028] In addition, a waterstop steel plate 9 is arranged between the composite wall and the foundation base 7, and the waterstop steel plate 9 is located between the two prefabricated wall panels 1. The waterstop steel plate 9 is used to waterproof the joint between the composite wall and the foundation base 7. After the concrete is poured into the cavity inside the composite wall, the waterstop steel plate 9 itself can ensure a stable position, and a suspension steel bar 10 is arranged on the surface of the waterstop steel plate 9. The upper end of the suspension steel bar 10 is bent and buckled on the outside of the welded steel bar 3. Before the concrete is poured, the waterstop steel plate 9 is suspended and positioned by the suspension steel bar 10. In addition, in order to avoid the interference of the waterstop steel plate 9 with the steel bars on the foundation base 7, which causes the suspension steel bar 10 to separate from the welded steel bar 3, the upper edge of the waterstop steel plate 9 needs to be against the welded steel bar 3. Figure 4 As shown, the upper end of the suspension steel bar 10 is fastened to the welded steel bar 3 to prevent the waterstop steel plate 9 from moving downward. The waterstop steel plate 9 is perpendicular to the welded steel bar 3 and presses against the lower side of the welded steel bar 3 to prevent itself from moving upward, thereby ensuring the stability of the position of the waterstop steel plate 9. Even if the composite wall is placed above the foundation base 7 and the steel bars on the foundation base 7 partially interfere with and contact the waterstop steel plate 9, the waterstop steel plate 9 will not move vertically upward to cause the suspension steel bar 10 to separate from the welded steel bar 3.

[0029] In order to reduce the interference between the steel bars on the foundation base 7 and the waterstop steel plate 9, the present application also has the upper and lower edges of the waterstop steel plate 9 bent to form waterstop flanges 91, so that the upper and lower edge positions of the waterstop steel plate 9 have a certain ability to undergo elastic deformation, and when the lower edge position of the waterstop steel plate 9 is in contact with the steel bars on the foundation base 7, the steel bars can be slightly pushed to the side, thereby reducing the degree of interference between the waterstop steel plate 9 and the steel bars. In addition, the suspension steel bars 10 are welded and fixed to the surface of the waterstop steel plate 9, and the upper and lower halves of the waterstop steel plate 9 are respectively located in the composite wall and the foundation base 7, thereby ensuring that after the concrete in the inner cavity of the composite wall is cast and formed, the waterstop steel plate 9 can effectively waterproof the joints between the composite wall and the foundation base 7.

[0030] In order to improve the strength of the prefabricated wall panels 1 themselves, the present application also has a plurality of U-shaped steel bars 4 that are horizontally distributed at equal intervals between the two prefabricated wall panels 1. The U-shaped steel bars 4 are inverted, and the two ends of the U-shaped steel bars 4 are respectively embedded in the two prefabricated wall panels 1. Horizontal steel bars 5 that are perpendicular to the U-shaped steel bars 4 are embedded in the prefabricated wall panels 1, and the horizontal steel bars 5 are tied and fixed to the U-shaped steel bars 4. The horizontal steel bars 5 and the U-shaped steel bars 4 are connected to each other to form a "well" shaped structure, which is used to reinforce the strength of the prefabricated wall panels 1 to avoid damage to the prefabricated wall panels 1 due to excessive expansion force when concrete is poured between the two prefabricated wall panels 1.

[0031] In order to position the welded steel bars 3, the present application also has an additional steel bar 6 embedded in the bottom of the prefabricated wall panel 1. The welded steel bars 3 are arranged horizontally, and both ends are bent to form a horizontal "V" shape. The ends of the welded steel bars 3 are fastened to the cross-connection between the additional steel bars 6 and the horizontal steel bars 5. Figure 2 and Figure 3 As shown, the bending direction of the end of the welded steel bar 3 is inclined downward. After the end of the welded steel bar 3 is fastened and positioned, the welded steel bar 3 can ensure the stability of its own position, and will not move horizontally or vertically, thereby ensuring that after the waterstop steel plate 9 is hung under the welded steel bar 3, the waterstop steel plate 9 can just correspond to the joint between the composite wall and the foundation base 7.

[0032] In order to improve the strength of the foundation base 7, the present application also has an additional mesh 71 arranged inside the foundation base 7. The additional mesh 71 is composed of multiple steel bars welded together in a "well" shape. The additional mesh 71 is arranged to improve the internal strength of the foundation base 7 itself and prevent the foundation base 7 from being damaged or deformed.

[0033] In order to connect the composite wall with the foundation base 7, the present application also has an extended connecting rib 8 embedded in the interior of the foundation base 7, the extended connecting rib 8 is vertically arranged, and the upper end of the extended connecting rib 8 extends to the bottom between the two prefabricated wall panels 1, and the upper end of the extended connecting rib 8 is welded and fixed to the welded steel bar 3, such as Figure 2 and Figure 3 As shown, since the position of the welded steel bar 3 itself is stable and the extended connecting bar 8 is pre-buried in the inside of the foundation base 7 and remains fixed, after the extended connecting bar 8 and the welded steel bar 3 are welded and fixed, a high stability can be ensured between the prefabricated wall panel 1 and the foundation base 7, and since the bottoms of the two prefabricated wall panels 1 of the composite wall are connected by the welded steel bar 3, and the welded steel bar 3 and the extended connecting bar 8 are perpendicular to each other, in the process of the composite wall approaching the foundation base 7 from top to bottom, there is less interference between the steel bars on the foundation base 7 (i.e., the extended connecting bar 8) and the steel bars inside the composite wall (i.e., the welded steel bar 3), and the composite wall is easier to put into place. After being in place, by welding the extended connecting bar 8 to the welded steel bar 3, it can also be ensured that there is sufficient connection strength between the composite wall and the foundation base 7. Therefore, the device can not only improve the construction speed, but also ensure that the composite wall itself has sufficient strength.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of prefabricated composite wall structure, characterized in that: Including: Two mutually parallel precast wall panels (1), and a gap for concrete pouring is left between the two precast wall panels (1). A truss reinforcement (2) is installed in the upper half between the two precast wall panels (1), and a welded reinforcement (3) is installed in the lower half. The composite wall is installed above the foundation base (7). A waterstop steel plate (9) is provided between the composite wall and the foundation base (7), and the waterstop steel plate (9) is located between the two precast wall panels (1). Suspension reinforcements (10) are provided on the surface of the waterstop steel plate (9). The upper ends of the suspension reinforcements (10) are bent and buckled outside the welded reinforcement (3), and the upper edge of the waterstop steel plate (9) abuts against the welded reinforcement (3).

2. A novel prefabricated composite wall structure according to claim 1, characterized in that: Waterstop flanges (91) are bent at both the upper and lower edges of the waterstop steel plate (9). The suspension reinforcements (10) are fixedly welded to the surface of the waterstop steel plate (9). The upper and lower halves of the waterstop steel plate (9) are respectively located inside the composite wall and the foundation base (7).

3. A novel prefabricated composite wall structure according to claim 1, characterized in that: A plurality of U-shaped reinforcements (4) are arranged horizontally at equal intervals between the two precast wall panels (1). The U-shaped reinforcements (4) are arranged upside down. The two ends of the U-shaped reinforcements (4) are respectively embedded inside the two precast wall panels (1). Horizontal reinforcements (5) perpendicular to the U-shaped reinforcements (4) are embedded inside the precast wall panels (1), and the horizontal reinforcements (5) are tied and fixed to the U-shaped reinforcements (4).

4. A novel prefabricated composite wall structure according to claim 1, characterized in that: Additional reinforcements (6) are预埋 at the bottom inside the precast wall panels (1). The welded reinforcement (3) is arranged horizontally, and both ends are bent to form a horizontal "V" shape. The end of the welded reinforcement (3) buckles the intersection of the additional reinforcement (6) and the horizontal reinforcement (5).

5. A novel prefabricated composite wall structure according to claim 1, characterized in that: Additional mesh sheets (71) are arranged inside the foundation base (7). The additional mesh sheets (71) are composed of a plurality of reinforcements intersecting in a "well" shape and welded to each other.

6. A novel prefabricated composite wall structure according to claim 1, characterized in that: Extended connecting reinforcements (8) are embedded inside the foundation base (7). The extended connecting reinforcements (8) are arranged vertically, and the upper ends of the extended connecting reinforcements (8) extend to the bottom between the two precast wall panels (1). The upper ends of the extended connecting reinforcements (8) are fixedly welded to the welded reinforcement (3).

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