CN105952054A - Composite wallboard - Google Patents

Abstract

The invention relates to the field of building technology, in particular to a composite wall panel, which includes a wall panel body, an insulation layer is arranged inside the wall panel body, a first groove is provided on the surface of the insulation layer, and the surface where the wall panel body is connected to the insulation layer A first protrusion matched with the first groove is provided. In the present invention, the thermal insulation layer is placed inside the wall panel body, and at the same time, the outer surface of the thermal insulation layer is provided with a first groove, so that the outer surface of the thermal insulation layer forms a concave-convex interface, and the wall panel body and the thermal insulation layer also form a concave-convex interface with the thermal insulation layer. The concave-convex interface of the layer is fitted together, so the contact area and bonding force between the insulation layer and the wall panel body can be increased, the connection strength between the insulation layer and the wall panel body can be increased, and the tightness between the insulation layer and the wall panel body can be ensured. The connection effectively prevents part of the main body of the wall panel from falling off, so that the integral composite wall panel has a simple structure, increased bearing capacity, convenient construction and manufacture, and has wide popularization and use value.

Description

A composite wall panel

technical field

The invention relates to the technical field of construction, in particular to a composite wall panel.

Background technique

At present, one of the key tasks of my country's construction industry is to do a good job in the energy conservation of new buildings and promote the energy conservation of existing buildings. Since the world energy crisis in 1973, various countries have carried out R&D and promotion of energy-saving technologies. For China, which is relatively scarce in resources, energy-saving is a basic national policy. In recent years, with the improvement of urban and rural living standards and quality of life in China, and the rapid development of urbanization, China has maintained a high demand for housing. From 2000 to 2011, the average annual construction area of urban housing increased by 3 100 million m ² , such a large building volume makes building energy consumption account for nearly 30% of China's total energy consumption, so building energy conservation is urgent. In addition, with the rapid development of urban construction in our country, the housing industry has become an important pillar industry driving the development of the national economy. In order to realize the sustainable development of housing construction and meet people's growing demand for housing, it is necessary to speed up the process of housing industrialization, so that my country's housing industry can change from the backward extensive production and processing mode to the advanced mode of intensive production as soon as possible. Residential quality.

As a representative product of the development of new energy-saving and thermal insulation walls, prefabricated concrete energy-saving and thermal insulation composite wall panels have superior thermal insulation performance and fire resistance performance. They have the conditions for the industrialization of new building walls and can realize prefabricated production.

The processing and production of concrete thermal insulation composite wall panels is completed in the prefabricated component factory, and the quality of the wall panels can be fully guaranteed; the use of prefabricated wall panels greatly reduces the wet work on the construction site, simplifies the construction process, and speeds up the progress of the project; the composite wall The size specifications of the panels are produced in accordance with standardization and stereotypes, which is conducive to the realization of mechanized production and scientific management in the process of housing construction, and the improvement of industrialized labor productivity. These characteristics are consistent with the connotation of housing industrialization, and meet the development requirements of our country's housing industrialization, providing an important support for the realization of housing industrialization in our country.

The traditional concrete sandwich composite wall panels are mainly used for the interior and exterior wall panels of ordinary housing construction and prefabricated housing construction. The mesh, as well as the middle foam board and the upper and lower concrete surfaces need to be connected by shear connectors. Therefore, the structure of the traditional concrete sandwich composite wall panel is complicated, and the construction and manufacture are inconvenient. It is also difficult to ensure the tight connection between the concrete surface and the foam board, which may easily cause part of the concrete surface to fall off. Moreover, many joints are likely to form thermal bridges, resulting in heat loss. loss.

Contents of the invention

(1) Technical problems to be solved

The technical problem to be solved by the present invention is to solve the problems that the existing composite wall panels are complex in structure, inconvenient in construction and manufacture, and it is difficult to ensure tight connection between the concrete surface layer and the foam board, which easily causes part of the concrete surface layer to fall off.

(2) Technical solution

In order to solve the above technical problems, the present invention provides a composite wall panel, comprising a wall panel body, an insulation layer is arranged inside the wall panel body, a first groove is provided on the surface of the insulation layer, and the wall panel The surface of the main body connected with the thermal insulation layer is provided with a first protrusion matched with the first groove.

Wherein, the first groove is a dovetail groove.

Wherein, the thermal insulation layer includes an FRP profile layer and a thermal insulation board filled inside the FRP profile layer.

Wherein, the inner side of the FRP profile layer is provided with a plurality of ribs in parallel and at intervals along the length direction of the wall panel body.

Wherein, the plurality of ribs are all perpendicular to the length direction of the wall panel body and evenly distributed inside the FRP profile layer.

Wherein, the wall panel body is respectively provided with a second groove and a second protrusion on two side surfaces perpendicular to the length direction.

Wherein, the insulation board is made of foam material.

Wherein, the wall panel body is made of concrete.

Wherein, the upper end and the lower end of the wall panel body are pre-embedded with steel bars.

(3) Beneficial effects

The above technical solution of the present invention has the following advantages: the composite wall panel of the present invention places the thermal insulation layer inside the wall panel body, and at the same time, the outer surface of the thermal insulation layer is provided with a first groove, so that the outer surface of the thermal insulation layer forms a concave-convex interface, The combination of the wall panel body and the insulation layer also forms a concave-convex interface that fits with the concave-convex interface of the insulation layer. The concave-convex interface can be a variety of fitting shapes such as rectangle or arc, and increases in the width and length direction of the composite wall panel. The contact area between the wall panel body and the insulation layer can increase the bonding force between the insulation layer and the wall panel body, increase the connection strength between the insulation layer and the wall panel body, and eliminate the need to configure shear connectors, ensuring that the insulation layer While closely connected with the wall panel body, it also solves the problem that many connectors are prone to form thermal bridges and cause heat loss, effectively avoiding the partial fall of the wall panel body, making the overall composite wall panel simple in structure and increasing in bearing capacity , convenient construction and good durability, suitable for interior and exterior wall panels of ordinary house construction and prefabricated house construction, and has extensive promotion and use value.

In addition to the above-described technical problems solved by the present invention, the technical features of the formed technical solutions and the advantages brought by the technical features of these technical solutions, other technical features of the present invention and the advantages brought by these technical features, Further description will be made in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the sectional view of composite wall panel of the embodiment of the present invention;

Fig. 2 is a cross-sectional view of a first groove of a composite wall panel according to an embodiment of the present invention;

Fig. 3 is a cross-sectional view of the first groove of the composite wall panel according to the embodiment of the present invention.

In the figure: 1: wall panel body; 2: insulation layer; 10: first protrusion; 11: second protrusion; 12: second groove; 20: first groove; 21: FRP profile layer; 22: Insulation board; 23: rib board.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In addition, in the description of the present invention, unless otherwise specified, the meanings of "multiple", "multiple roots" and "multiple groups" are two or more, "several", "several roots", "several "Group" means one or more than one.

As shown in Fig. 1, Fig. 2 and Fig. 3, the composite wall panel provided by the embodiment of the present invention includes a wall panel body 1, an insulation layer 2 is arranged inside the wall panel body 1, and a first recess is arranged on the surface of the insulation layer 2. Groove 20 , the surface where the wall panel body 1 is connected to the thermal insulation layer 2 is provided with a first protrusion 10 that matches the first groove 20 on the surface of the thermal insulation layer 2 .

In the composite wall panel of the present invention, the thermal insulation layer is placed inside the wall panel body, and at the same time, the outer surface of the thermal insulation layer is provided with a first groove, so that the outer surface of the thermal insulation layer forms a concave-convex interface, and the wall panel body and the thermal insulation layer also form a concave-convex joint. The concave-convex interface of the thermal insulation layer can be fitted with the concave-convex interface. The concave-convex interface can be rectangular or arc-shaped. Therefore, the bonding force between the insulation layer and the wall panel body can be increased, the connection strength between the insulation layer and the wall panel body can be increased, and no shear connectors need to be configured to ensure the tight connection between the insulation layer and the wall panel body. It also solves the problem that many connectors are prone to form thermal bridges, resulting in heat loss, and effectively avoids the partial shedding of the wall panel body, making the overall composite wall panel simple in structure, with increased bearing capacity, convenient construction and production, and good durability. It is widely used in the interior and exterior wall panels of ordinary housing construction and prefabricated housing construction.

Specifically, as shown in FIG. 1 , the first groove 20 is a dovetail groove. The first groove on the surface of the insulation layer is preferably set in the form of a dovetail groove. Compared with the rectangular groove form in Figure 2, the dovetail groove increases the contact area between the insulation layer and the wall panel body in the width direction of the wall panel body. Compared with the arc groove form in Figure 3, the dovetail groove is easier to process in manufacture, and the corner of the dovetail groove has more connection strength than the arc, so the concave-convex interface is preferably in the form of a dovetail groove, which further increases the insulation layer and the wall panel The contact area between the two main bodies further improves the connection strength between the two, so that the insulation layer is firmly connected with the wall main body.

Wherein, the thermal insulation layer 2 includes an FRP (fiber reinforced composite material) profile layer 21 and a thermal insulation board filled inside the FRP profile layer 21 . The outer FRP profile layer that forms the insulation layer is light in weight and high in strength, which can avoid adding additional weight to the entire composite wall panel, and is corrosion-resistant. The thermal expansion coefficient of the FRP profile is similar to that of concrete. When the ambient temperature changes, the FRP profile layer and the wall The panel body works in harmony, no large temperature stress will be generated between the two, and the tensile strength is high. The tensile strength of the FRP profile is significantly higher than that of the steel bar, which can fully guarantee the mechanical properties of the wall panel. The thermal insulation board can be directly inserted into the FRP profile layer. After the insertion and filling is completed, the FRP profile layer can be directly used as the bottom template, and the outer surface of the FRP profile layer can be directly poured to form the wall panel body. The connection strength of the panel body can also be used as a stress-reinforcing material for the entire composite wall panel, and there is no need to configure a reinforcement mesh in the wall panel body.

Specifically, a plurality of ribs 23 are arranged in parallel and at intervals along the length direction of the wall panel body 1 on the inner side of the FRP profile layer 21 . Wherein, a plurality of ribs 23 are perpendicular to the length direction of the wall panel body 1 and evenly distributed inside the FRP profile layer 21 . The interior of the FRP profile layer is also provided with ribs of FRP profiles. The ribs are vertically arranged and spaced in parallel along the length of the wall panel body. The distance between the ribs can be set according to the width of the insulation board. Evenly spaced settings are beneficial The ribs are evenly stressed to increase the vertical stiffness of the composite wall panels.

Further, the wall panel body 1 is respectively provided with a second groove 12 and a second protrusion 11 on two sides perpendicular to the length direction. The two sides of the wall panel body in the length direction are respectively provided with grooves and protrusions as connection interfaces. When two composite wall panels are connected and assembled horizontally, they can be inserted into the other wall through the protrusions on one side of the wall panel body. The groove on one side of the panel body facilitates the assembly and connection of the composite wall panel.

Specifically, the insulation board 22 is made of foam material. Wherein, the wall panel body 1 is made of concrete. The foam of the thermal insulation material is conveniently inserted and filled into the FRP profile layer. The thermal insulation effect is obvious and the weight is light. The thermal expansion coefficients of concrete and FRP profiles are similar. When the ambient temperature changes, the FRP profile layer and the wall panel body work in harmony. There will be a large temperature stress.

In addition, steel bars are pre-embedded at the upper and lower ends of the wall panel body 1 . Common steel bars are pre-embedded at the upper and lower ends of the wall panel body to facilitate connection with other building structures.

In summary, in the composite wall panel of the present invention, the thermal insulation layer is placed inside the wall panel body, and at the same time, the outer surface of the thermal insulation layer is provided with a first groove, so that the outer surface of the thermal insulation layer forms a concave-convex interface, and the wall panel body and the thermal insulation layer The combination of layers also forms a concave-convex interface that fits with the concave-convex interface of the insulation layer. The concave-convex interface can be a variety of fitting shapes such as rectangle or arc, and the wall panel body and the insulation layer are enlarged in the width and length directions of the composite wall panel. Therefore, it can increase the bonding force between the insulation layer and the wall panel body, increase the connection strength between the insulation layer and the wall panel body, and no need to configure shear connectors, which ensures the insulation layer and the wall panel body. At the same time of tight connection, it also solves the problem that many connectors are prone to form thermal bridges, resulting in heat loss, and effectively avoids part of the wall panel body falling off, making the overall composite wall panel simple in structure, with increased bearing capacity and convenient construction. It has good durability, is suitable for the interior and exterior wall panels of ordinary house construction and prefabricated house construction, and has wide promotion and use value.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (9)

1. A composite wall panel, characterized in that: it comprises a wall panel body, the inside of the wall panel body is provided with a thermal insulation layer, the surface of the thermal insulation layer is provided with a first groove, and the wall panel body and the described wall panel body The surface to which the insulation layer is connected is provided with a first protrusion matched with the first groove. 2. The composite wall panel according to claim 1, wherein the first groove is a dovetail groove. 3. The composite wall panel according to claim 1, characterized in that: the thermal insulation layer comprises an FRP profile layer and a thermal insulation board filled inside the FRP profile layer. 4. The composite wall panel according to claim 3, characterized in that: the inner side of the FRP profile layer is provided with a plurality of ribs in parallel and at intervals along the length direction of the wall panel body. 5 . The composite wall panel according to claim 4 , wherein the plurality of ribs are all perpendicular to the length direction of the wall panel body and evenly distributed inside the FRP profile layer. 6 . 6. The composite wall panel according to claim 1, characterized in that: the wall panel body is provided with a second groove and a second protrusion on two side surfaces perpendicular to the length direction respectively. 7. The composite wall panel according to claim 3, wherein the insulation board is made of foam material. 8. The composite wall panel according to claim 1, wherein the wall panel body is made of concrete. 9. The composite wall panel according to claim 1, characterized in that: both the upper end and the lower end of the wall panel body are pre-embedded with steel bars.