Lightweight composite wall skeleton and composite wall unit

Abstract

The application provides a light composite wall skeleton and a composite wall unit. The light composite wall skeleton comprises a keel frame and a non-metal connecting piece arranged on one side or both sides of the keel frame along the thickness direction of the wall, one end of the connecting piece being connected with the keel frame and the other end being embedded into the outer wall of the composite wall. The non-metal connecting piece with good heat preservation performance is arranged between the keel frame and the outer wall or on both sides of the keel frame and the outer wall and the inner wall, so that the cold and hot bridge problems of the composite wall are solved, and the application range of the light steel skeleton composite wall panel is wider.

Description

Technical Field

[0001] This article relates to, but is not limited to, the field of building technology, and in particular to a lightweight composite wall frame and composite wall unit. Background Technology

[0002] Lightweight steel frame composite walls are constructed by using a steel frame as support, with lightweight concrete reinforced with steel mesh poured on both sides of the steel frame, and lightweight inorganic insulation material filled between the two layers of lightweight concrete walls. Because the composite wall has an internal lightweight steel frame, a thermal bridging effect is created between the steel frame and the concrete wall, limiting its application, especially in northern regions where there are large temperature differences between indoors and outdoors.

[0003] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Summary of the Invention

[0004] One embodiment of this application provides a lightweight composite wall frame, which includes a keel frame and non-metallic connectors; the connectors are disposed on one or both sides of the keel frame along the wall thickness direction, one end of the connector is connected to the keel frame, and the other end is embedded in the outer wall of the composite wall.

[0005] Another embodiment of this application provides a composite wall unit, the composite wall unit including two walls spaced apart, and a lightweight composite wall frame, the lightweight composite wall frame being used to connect the two walls, and the keel frame in the lightweight composite wall frame having a gap between it and at least one of the walls.

[0006] After adopting the above technical solution, the embodiments of this application have the following beneficial effects:

[0007] By installing non-metallic connectors with good thermal insulation properties between the keel frame and the exterior wall, or on both sides of the keel frame and the exterior or interior walls, the cold and heat bridging problem of the composite wall can be solved, thus expanding the application range of lightweight steel frame composite walls.

[0008] After reading and understanding the accompanying diagrams and detailed descriptions, other aspects can be understood. Attached Figure Description

[0009] The accompanying drawings are provided to further understand the technical solutions in this paper and form part of the specification. They are used together with the embodiments of this application to explain the technical solutions in this paper and do not constitute a limitation on the technical solutions in this paper.

[0010] Figure 1 This is a front view schematic diagram of a lightweight composite wall frame according to an embodiment of this application;

[0011] Figure 2 This is a partial schematic diagram of a lightweight composite wall frame in some exemplary embodiments of this application. Figure 1 ;

[0012] Figure 3 This is a partial schematic diagram of a lightweight composite wall frame in some exemplary embodiments of this application. Figure 2 ;

[0013] Figure 4 This is a partial cross-sectional view of a lightweight composite wall frame in some exemplary embodiments of this application. Figure 1 ;

[0014] Figure 5 This is a partial cross-sectional view of a lightweight composite wall frame in some exemplary embodiments of this application. Figure 2 ;

[0015] Figure 6 This is a partial cross-sectional view of a lightweight composite wall frame in some exemplary embodiments of this application. Figure 3 ;

[0016] Figure 7 This is a partial cross-sectional view of a lightweight composite wall frame in some exemplary embodiments of this application. Figure 4 ;

[0017] Figure 8 This is a cross-sectional view of a composite wall unit in another embodiment of this application. Figure 1 ;

[0018] Figure 9 A cross-sectional view of a composite wall unit in some exemplary embodiments of this application. Figure 2 ;

[0019] Figure 10 A cross-sectional view of a composite wall unit in some exemplary embodiments of this application. Figure 3 ;

[0020] Figure 11 A cross-sectional view of a composite wall unit in some exemplary embodiments of this application. Figure 4 ;

[0021] Figure 12 for Figure 11 Enlarged sectional view of part marked A in the middle.

[0022] Figure label:

[0023] 100-Lightweight composite wall frame;

[0024] 1-Keel frame, 11-Vertical keel, 12-Horizontal keel;

[0025] 2-Connector, 21-First connecting plate, 22-Second connecting plate, 23-Third connecting plate;

[0026] 3-Connecting and reinforcing structure; 4-Exterior wall; 5-Interior wall; 6-Insulation core layer;

[0027] 200-Composite wall unit. Detailed Implementation

[0028] The technical solutions described herein will be further illustrated below with reference to the accompanying drawings and specific embodiments. It is understood that the specific embodiments described herein are merely for illustrative purposes and not for limiting the scope of this document.

[0029] In one embodiment of this application, as Figures 1-7 As shown, a lightweight composite wall frame 100 for exterior composite walls is provided, mainly used in the construction of outdoor composite walls. Exterior composite walls generally refer to composite walls used at the boundary between indoor and outdoor spaces, typically composed of inner and outer wall panels and a composite core material. The lightweight composite wall frame 100 includes a keel frame 1 and connectors 2. The keel frame 1 consists of multiple vertically arranged vertical keels 11 and multiple horizontal keels 12 arranged perpendicularly to the vertical keels 11. The vertical keels 11 and horizontal keels 12 can be made of channel steel commonly used in composite walls; other metal materials, such as aluminum alloy, can also be used. The cross-sectional shape of the vertical keels 11 and horizontal keels 12 can be a commonly used C-shape, and the connection between them can be achieved through common snap-fit ​​or welding methods; the specific connection method is not limited here. Taking the commonly used C-shaped keel as an example, the technical solution shown in this paper is explained in detail.

[0030] The connector 2 is located on one or both sides of the keel frame 1 along the wall thickness direction. The connector 2 can be located only on the vertical keel 11, or only on the horizontal keel 12, or it can be located on both the vertical keel 11 and the horizontal keel 12. One end of the connector 2 is connected to the keel frame 1, and the other end is embedded in the outer wall 4 of the composite wall. The outer wall 4 can be a cast-in-place outer wall surface. A connecting reinforcement structure 3 is provided on the side of the connector 2 away from the keel frame 1. This "side" does not refer to the end point of the connector 2 away from the keel frame 1. The connector 2 is made of non-metallic material, such as composite plastic.

[0031] By installing non-metallic connectors 2 with good thermal insulation performance between the keel frame 1 and the outer wall 4, or on both sides of the keel frame 1 and the outer wall 4 and the inner wall 5, the problem of cold and heat bridging of composite walls can be solved, thus expanding the application range of composite walls.

[0032] In some exemplary embodiments, the connector 2 can be made of fiberglass reinforced plastic (FRP). Because FRP is lightweight, high-strength, and has excellent thermal properties, it can effectively reduce heat transfer between the keel frame 1 and the outer wall 4, as well as the inner wall 5. FRP, scientifically known as fiber-reinforced plastic, is commonly called FRP (Fiber Reinforced Plastics), a fiber-reinforced composite plastic. Depending on the type of fiber used, FRP is classified into glass fiber reinforced composite plastic, carbon fiber reinforced composite plastic, boron fiber reinforced composite plastic, etc. FRP is a composite material made by using glass fiber and its products (e.g., glass cloth, tape, felt, yarn, etc.) as reinforcing materials and synthetic resin as the matrix material.

[0033] In some exemplary embodiments, such as Figures 3-7 As shown, the connecting reinforcement structure 3 includes one or more of the following: bending, groove, through hole, hollow, flared neck, and protrusion. By setting the connecting reinforcement structure 3, the connection strength between the lightweight composite wall frame 100 and the outer wall 4, as well as with the inner wall 5, can be increased. The cross-sectional shape of the groove can be U-shaped, semi-circular, etc. The so-called hollow structure refers to multiple grooves penetrating the thickness of the connector 2 on the connector 2. These grooves can be circular holes (e.g.,...). Figure 3 The hole shown can be a round hole, or it can be an oblong hole. When the perforated structure is set as an oblong hole, the long axis of the oblong hole is aligned with the length direction of the vertical keel 11, which can improve the bonding strength between the connector 2 and the outer wall 4. Additionally, as shown... Figure 2 As shown, multiple round holes can be provided on the web of the vertical keel 11, which can effectively reduce the thermal bridging effect.

[0034] When multiple connectors 2 are installed within the lightweight composite wall frame 100, each connector 2 is provided with a through-hole-shaped connection reinforcement structure 3, which can be reinforced with steel bars (such as...). Figure 8 , Figure 9 As shown in the diagram, multiple connectors 2 are connected together by inserting steel bars through the wall (i.e., inserting steel bars through the multiple through holes mentioned above), which can further improve the overall connection stability.

[0035] Typically, the molding process of the outer protective composite wall includes the following steps: (1) laying the edge formwork; (2) laying the low-layer mesh cloth; (3) laying the steel mesh; (4) pouring the outer layer concrete; (5) pressing the steel keel frame; (6) pouring the insulation core material; (7) pouring the inner surface layer; (8) curing and demolding; (9) labeling; (10) yard transportation.

[0036] Before performing the above-mentioned process (5) of pressing down the steel keel frame, the connector 2 can be screwed onto the keel frame 1 (e.g., Figure 8 , Figure 9As shown, mounting holes can also be provided on connector 2. One end of connector 2 with mounting holes is inserted into the steel keel frame, and a locking rod is inserted into the mounting hole to prevent connector 2 from coming out. Connector 2 with the above structure is usually rod-shaped. Here, the connection method between connector 2 and keel frame 1 is not specifically limited. After the above connection operation, connector 2 is combined with keel frame 1 to form the concrete of outer wall 4 and inner wall 5. This avoids the keel frame in the middle of the composite wall directly contacting the lightweight concrete surface layer on both sides, forming a cold and heat bridge, which is a problem in traditional composite wall forming process. This results in the wall having a higher heat transfer coefficient.

[0037] In some exemplary embodiments, the connector 2 may be configured as a rod, one end of the connector 2 is fixedly connected to the keel frame 1 and extends in a direction perpendicular to the thickness of the keel frame 1, and the extended end of the connector 2 is provided with a connection reinforcement structure 3.

[0038] In some exemplary embodiments, such as Figures 3-7 As shown, the connector 2 includes a first connecting plate 21, a second connecting plate 22 parallel to the first connecting plate 21, and a third connecting plate 23 connected to the first connecting plate 21 and the second connecting plate 22 at both ends respectively. The first connecting plate 21 is fixedly connected to the keel frame 1, and the connecting reinforcement structure 3 is provided on the second connecting plate 22, which is embedded in the outer wall 4. The connector 2 includes the first connecting plate 21, the second connecting plate 22, and the third connecting plate 23. To simplify the design structure of the connector 2, the first connecting plate 21, the second connecting plate 22, and the third connecting plate 23 can be integrally formed. The first connecting plate 21 has a flat surface on the side near the keel frame 1 that fits against the side of the keel frame 1. The first connecting plate 21 is screwed to the keel frame 1. To simplify the design structure of the keel frame 1 and reduce its overall weight, through holes can be provided at corresponding positions on the keel frame 1. The connector 2 can be forcibly driven into the through holes using bolts or screws to install the connector 2 onto the keel frame 1. To ensure the installation position accuracy of the connector 2, a combination of round holes and oblong holes can be provided. The connecting reinforcement structure 3 can be a groove, a round hole, or an oblong hole, or a combination of the above-mentioned design structures.

[0039] Furthermore, the aforementioned first connecting plate 21, the parallel second connecting plate 22, and the third connecting plate 23 connected to the first connecting plate 21 and the second connecting plate 22 at both ends respectively, can be arranged in a C-shape, an I-shape, or a Z-shape. Alternatively, the second connecting plate 22 can be omitted, i.e., the first connecting plate 21 and the third connecting plate 23 can be T-shaped, in which case the connecting reinforcement structure 3 is disposed on the third connecting plate 23, and the structure of the connector 2 is as follows: Figure 3 As shown.

[0040] In another embodiment of this application, such as Figures 8-12 As shown, a composite wall unit 200 is also provided, including two walls spaced apart and the aforementioned lightweight composite wall frame 100. The lightweight composite wall frame 100 is used to connect the two walls, and the keel frame 1 in the lightweight composite wall frame 100 has a gap with at least one of the walls. The two walls can be configured as an outer wall 4 and an inner wall 5, wherein the inner wall 5 can be an inner wall surface layer formed by on-site casting.

[0041] In this design, the connecting reinforcement structure 3 on the connector 2 in the lightweight composite wall frame 100 is embedded within the outer wall 4 of the composite wall unit 200. A gap is left between the side of the keel frame 1 closest to the outer wall 4 and the inner side of the outer wall 4 to reduce the cold and heat bridging effect in the composite wall unit 200. The principle is the same for the connector 2 located on the side closest to the inner wall 5. Alternatively, gaps are provided on both sides, i.e., the connector 2 is located on both sides of the keel frame 1 along its thickness direction, with one side's connector 2 embedded within the outer wall 4 and the other side's connector 2 embedded within the inner wall 5, and gaps are left between the keel frame 1 and the outer wall 4, and between the keel frame 1 and the inner wall 5.

[0042] In addition, by setting the connection reinforcement structure 3, the connection between the lightweight composite wall frame 100 and the outer walls 4 on both sides, as well as the inner wall 5, is made stronger, which improves the overall strength of the composite wall unit 200 and prevents the connection of different materials in the composite wall unit 200 from separating and delaminating when subjected to external forces. It can also reduce the thickness of the composite wall unit 200 to a certain extent, avoid the use of large-size cross-section keel, and effectively reduce weight and cost.

[0043] In other exemplary embodiments, such as Figures 8-11 As shown, the composite wall unit 200 also includes an insulation core layer 6, which is located between the outer wall 4 and the inner wall 5. The insulation core layer 6 is made of polystyrene particle insulation mortar. Both the outer wall 4 and the inner wall 5 are lightweight concrete cast wall panels.

[0044] Polystyrene particle insulation mortar is an organic insulation mortar material made by mixing polystyrene particles as lightweight aggregate with polystyrene particle insulation adhesive powder in a certain proportion. This material can be applied after mixing with water to form a slurry on-site. It can be used for both internal and external insulation of building exterior walls, is easy to apply, and has good insulation performance.

[0045] In some exemplary embodiments, such as Figure 12 As shown, the thickness of the outer wall 4 is set as W1, where W1 is any value between 40mm and 45mm, and the depth of the connector 2 embedded in the outer wall 4 is set as W2, where W2 is any value between 18mm and 25mm.

[0046] In some exemplary embodiments, such as Figure 12 As shown, the gap between the keel frame 1 and the outer wall 4 along the thickness direction of the composite wall unit 200 is set as W3, and W3 is set to any value between 30mm and 35mm.

[0047] In the description herein, the terms “upper,” “lower,” “one side,” “the other side,” “one end,” “the other end,” “side,” “opposite,” “four corners,” “periphery,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this document.

[0048] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this document based on the specific circumstances.

[0049] While the embodiments disclosed herein are as described above, the content is merely for the purpose of understanding this document and is not intended to limit it. Any person skilled in the art may make any modifications and changes to the form and details of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection herein shall still be defined by the appended claims.

Claims

1. A composite wall unit, comprising two walls spaced apart, the two walls including an inner wall and an outer wall, characterized in that, It also includes a lightweight composite wall frame, applied to the exterior cladding composite wall, the lightweight composite wall frame being used to connect two of the walls; the lightweight composite wall frame includes a keel frame and non-metallic connectors; the connectors are located on one or both sides of the keel frame along the wall thickness direction, one end of the connector is connected to the keel frame, and the other end is set to be embedded in the outer wall body of the composite wall; the web of the vertical keel of the keel frame is provided with multiple round holes to reduce thermal bridging; The connector is embedded in the outer wall, and a gap is left between the keel frame and the outer wall; or, the connector is provided on both sides of the keel frame along the thickness direction, with one side of the connector embedded in the outer wall and the other side of the connector embedded in the inner wall, and gaps are left between the keel frame and the outer wall, and between the keel frame and the inner wall. The portion of the connector embedded in the outer wall body is provided with a connection reinforcement structure, which includes one or more of the following: bending, groove, hollowing, necking, and protrusion.

2. The composite wall unit as described in claim 1, characterized in that, The connector is made of fiber-reinforced composite material.

3. The composite wall unit as described in claim 1, characterized in that, The connector is rod-shaped, with one end fixedly connected to the keel frame and extending in a direction perpendicular to the thickness of the keel frame. The extended end of the connector is provided with the connection reinforcement structure.

4. The composite wall unit as described in claim 1, characterized in that, The connector includes a first connecting plate, a second connecting plate parallel to the first connecting plate, and a third connecting plate whose two ends are respectively connected to the first connecting plate and the second connecting plate; the first connecting plate is fixedly connected to the keel frame; the connecting reinforcement structure is provided on the second connecting plate, and the second connecting plate is configured to be embedded in the exterior wall.

5. The composite wall unit as described in claim 4, characterized in that, The connector is generally H-shaped, C-shaped, or Z-shaped.

6. The composite wall unit as described in claim 1, characterized in that, The connector includes a first connecting plate and a third connecting plate. The first connecting plate is fixedly connected to the keel frame. The connection reinforcement structure is disposed on the third connecting plate, and the third connecting plate is embedded in the exterior wall.

7. The composite wall unit as described in claim 6, characterized in that, The connector is T-shaped overall.

8. The composite wall unit as described in any one of claims 1 to 7, characterized in that, The wall is a cast-in-place lightweight concrete wall.

9. The composite wall unit as described in any one of claims 1 to 7, characterized in that, It also includes an insulation core layer, which is disposed between the two walls, and the insulation core layer is made of polystyrene particle insulation mortar.

Images